477 files changed, 8021 insertions, 5212 deletions

diff --git a/.gitignore b/.gitignore
index 8363e48cdcdc..fdcce40226d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -53,3 +53,5 @@ cscope.*
 
 *.orig
 *.rej
+*~
+\#*#
diff --git a/Documentation/DocBook/kernel-api.tmpl b/Documentation/DocBook/kernel-api.tmpl
index f31601e8bd89..dc0f30c3e571 100644
--- a/Documentation/DocBook/kernel-api.tmpl
+++ b/Documentation/DocBook/kernel-api.tmpl
@@ -361,12 +361,14 @@ X!Edrivers/pnp/system.c
   <chapter id="blkdev">
      <title>Block Devices</title>
 !Eblock/blk-core.c
+!Iblock/blk-core.c
 !Eblock/blk-map.c
 !Iblock/blk-sysfs.c
 !Eblock/blk-settings.c
 !Eblock/blk-exec.c
 !Eblock/blk-barrier.c
 !Eblock/blk-tag.c
+!Iblock/blk-tag.c
   </chapter>
 
   <chapter id="chrdev">
diff --git a/Documentation/controllers/memory.txt b/Documentation/controllers/memory.txt
index 6015347b41e2..866b9cd9a959 100644
--- a/Documentation/controllers/memory.txt
+++ b/Documentation/controllers/memory.txt
@@ -1,4 +1,8 @@
-Memory Controller
+Memory Resource Controller
+
+NOTE: The Memory Resource Controller has been generically been referred
+to as the memory controller in this document. Do not confuse memory controller
+used here with the memory controller that is used in hardware.
 
 Salient features
 
@@ -152,7 +156,7 @@ The memory controller uses the following hierarchy
 
 a. Enable CONFIG_CGROUPS
 b. Enable CONFIG_RESOURCE_COUNTERS
-c. Enable CONFIG_CGROUP_MEM_CONT
+c. Enable CONFIG_CGROUP_MEM_RES_CTLR
 
 1. Prepare the cgroups
 # mkdir -p /cgroups
@@ -164,7 +168,7 @@ c. Enable CONFIG_CGROUP_MEM_CONT
 
 Since now we're in the 0 cgroup,
 We can alter the memory limit:
-# echo -n 4M > /cgroups/0/memory.limit_in_bytes
+# echo 4M > /cgroups/0/memory.limit_in_bytes
 
 NOTE: We can use a suffix (k, K, m, M, g or G) to indicate values in kilo,
 mega or gigabytes.
@@ -185,7 +189,7 @@ number of factors, such as rounding up to page boundaries or the total
 availability of memory on the system.  The user is required to re-read
 this file after a write to guarantee the value committed by the kernel.
 
-# echo -n 1 > memory.limit_in_bytes
+# echo 1 > memory.limit_in_bytes
 # cat memory.limit_in_bytes
 4096
 
@@ -197,7 +201,7 @@ caches, RSS and Active pages/Inactive pages are shown.
 
 The memory.force_empty gives an interface to drop *all* charges by force.
 
-# echo -n 1 > memory.force_empty
+# echo 1 > memory.force_empty
 
 will drop all charges in cgroup. Currently, this is maintained for test.
 
diff --git a/Documentation/debugging-via-ohci1394.txt b/Documentation/debugging-via-ohci1394.txt
index de4804e8b396..c360d4e91b48 100644
--- a/Documentation/debugging-via-ohci1394.txt
+++ b/Documentation/debugging-via-ohci1394.txt
@@ -36,14 +36,15 @@ available (notebooks) or too slow for extensive debug information (like ACPI).
 Drivers
 -------
 
-The OHCI-1394 drivers in drivers/firewire and drivers/ieee1394 initialize
-the OHCI-1394 controllers to a working state and can be used to enable
-physical DMA. By default you only have to load the driver, and physical
-DMA access will be granted to all remote nodes, but it can be turned off
-when using the ohci1394 driver.
-
-Because these drivers depend on the PCI enumeration to be completed, an
-initialization routine which can runs pretty early (long before console_init(),
+The ohci1394 driver in drivers/ieee1394 initializes the OHCI-1394 controllers
+to a working state and enables physical DMA by default for all remote nodes.
+This can be turned off by ohci1394's module parameter phys_dma=0.
+
+The alternative firewire-ohci driver in drivers/firewire uses filtered physical
+DMA, hence is not yet suitable for remote debugging.
+
+Because ohci1394 depends on the PCI enumeration to be completed, an
+initialization routine which runs pretty early (long before console_init()
 which makes the printk buffer appear on the console can be called) was written.
 
 To activate it, enable CONFIG_PROVIDE_OHCI1394_DMA_INIT (Kernel hacking menu:
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 4d3aa519eadf..c1d1fd0c299b 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -172,6 +172,16 @@ Who:	Len Brown <len.brown@intel.com>
 
 ---------------------------
 
+What:   ide-tape driver
+When:   July 2008
+Files:  drivers/ide/ide-tape.c
+Why:    This driver might not have any users anymore and maintaining it for no
+        reason is an effort no one wants to make.
+Who:    Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>, Borislav Petkov
+        <petkovbb@googlemail.com>
+
+---------------------------
+
 What: libata spindown skipping and warning
 When: Dec 2008
 Why:  Some halt(8) implementations synchronize caches for and spin
@@ -306,3 +316,15 @@ Why:	Largely unmaintained and almost entirely unused.  File system
         is largely pointless as without a lot of work only the most
         trivial of Solaris binaries can work with the emulation code.
 Who:    David S. Miller <davem@davemloft.net>
+
+---------------------------
+
+What:   init_mm export
+When:   2.6.26
+Why:    Not used in-tree. The current out-of-tree users used it to
+        work around problems in the CPA code which should be resolved
+        by now. One usecase was described to provide verification code
+        of the CPA operation. That's a good idea in general, but such
+        code / infrastructure should be in the kernel and not in some
+        out-of-tree driver.
+Who:    Thomas Gleixner <tglx@linutronix.de>
diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt
index 8da724e2a0ff..54630095aa3c 100644
--- a/Documentation/gpio.txt
+++ b/Documentation/gpio.txt
@@ -2,6 +2,9 @@ GPIO Interfaces
 
 This provides an overview of GPIO access conventions on Linux.
 
+These calls use the gpio_* naming prefix.  No other calls should use that
+prefix, or the related __gpio_* prefix.
+
 
 What is a GPIO?
 ===============
@@ -69,11 +72,13 @@ in this document, but drivers acting as clients to the GPIO interface must
 not care how it's implemented.)
 
 That said, if the convention is supported on their platform, drivers should
-use it when possible.  Platforms should declare GENERIC_GPIO support in
-Kconfig (boolean true), which multi-platform drivers can depend on when
-using the include file:
+use it when possible.  Platforms must declare GENERIC_GPIO support in their
+Kconfig (boolean true), and provide an <asm/gpio.h> file.  Drivers that can't
+work without standard GPIO calls should have Kconfig entries which depend
+on GENERIC_GPIO.  The GPIO calls are available, either as "real code" or as
+optimized-away stubs, when drivers use the include file:
 
-        #include <asm/gpio.h>
+        #include <linux/gpio.h>
 
 If you stick to this convention then it'll be easier for other developers to
 see what your code is doing, and help maintain it.
@@ -316,6 +321,9 @@ pulldowns integrated on some platforms.  Not all platforms support them,
 or support them in the same way; and any given board might use external
 pullups (or pulldowns) so that the on-chip ones should not be used.
 (When a circuit needs 5 kOhm, on-chip 100 kOhm resistors won't do.)
+Likewise drive strength (2 mA vs 20 mA) and voltage (1.8V vs 3.3V) is a
+platform-specific issue, as are models like (not) having a one-to-one
+correspondence between configurable pins and GPIOs.
 
 There are other system-specific mechanisms that are not specified here,
 like the aforementioned options for input de-glitching and wire-OR output.
diff --git a/Documentation/ide.txt b/Documentation/ide.txt
index 94e2e3b9e77f..bcd7cd1278ef 100644
--- a/Documentation/ide.txt
+++ b/Documentation/ide.txt
@@ -258,8 +258,6 @@ Summary of ide driver parameters for kernel command line
                           As for VLB, it is safest to not specify it.
                           Bigger values are safer than smaller ones.
 
- "idex=noprobe"         : do not attempt to access/use this interface
- 
  "idex=base"            : probe for an interface at the addr specified,
                           where "base" is usually 0x1f0 or 0x170
                           and "ctl" is assumed to be "base"+0x206
@@ -309,53 +307,6 @@ are detected automatically).
 
 ================================================================================
 
-IDE ATAPI streaming tape driver
--------------------------------
-
-This driver is a part of the Linux ide driver and works in co-operation
-with linux/drivers/block/ide.c.
-
-The driver, in co-operation with ide.c, basically traverses the
-request-list for the block device interface. The character device
-interface, on the other hand, creates new requests, adds them
-to the request-list of the block device, and waits for their completion.
-
-Pipelined operation mode is now supported on both reads and writes.
-
-The block device major and minor numbers are determined from the
-tape's relative position in the ide interfaces, as explained in ide.c.
-
-The character device interface consists of the following devices:
-
- ht0            major 37, minor 0       first  IDE tape, rewind on close.
- ht1            major 37, minor 1       second IDE tape, rewind on close.
- ...
- nht0           major 37, minor 128     first  IDE tape, no rewind on close.
- nht1           major 37, minor 129     second IDE tape, no rewind on close.
- ...
-
-Run /dev/MAKEDEV to create the above entries.
-
-The general magnetic tape commands compatible interface, as defined by
-include/linux/mtio.h, is accessible through the character device.
-
-General ide driver configuration options, such as the interrupt-unmask
-flag, can be configured by issuing an ioctl to the block device interface,
-as any other ide device.
-
-Our own ide-tape ioctl's can be issued to either the block device or
-the character device interface.
-
-Maximal throughput with minimal bus load will usually be achieved in the
-following scenario:
-
-        1.      ide-tape is operating in the pipelined operation mode.
-        2.      No buffering is performed by the user backup program.
-
-
-
-================================================================================
-
 Some Terminology
 ----------------
 IDE = Integrated Drive Electronics, meaning that each drive has a built-in
diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
index 83f515c2905a..be89f393274f 100644
--- a/Documentation/kprobes.txt
+++ b/Documentation/kprobes.txt
@@ -192,7 +192,8 @@ code mapping.
 The Kprobes API includes a "register" function and an "unregister"
 function for each type of probe.  Here are terse, mini-man-page
 specifications for these functions and the associated probe handlers
-that you'll write.  See the latter half of this document for examples.
+that you'll write.  See the files in the samples/kprobes/ sub-directory
+for examples.
 
 4.1 register_kprobe
 
@@ -420,249 +421,15 @@ e. Watchpoint probes (which fire on data references).
 
 8. Kprobes Example
 
-Here's a sample kernel module showing the use of kprobes to dump a
-stack trace and selected i386 registers when do_fork() is called.
------ cut here -----
-/*kprobe_example.c*/
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/kprobes.h>
-#include <linux/sched.h>
-
-/*For each probe you need to allocate a kprobe structure*/
-static struct kprobe kp;
-
-/*kprobe pre_handler: called just before the probed instruction is executed*/
-int handler_pre(struct kprobe *p, struct pt_regs *regs)
-{
-        printk("pre_handler: p->addr=0x%p, eip=%lx, eflags=0x%lx\n",
-                p->addr, regs->eip, regs->eflags);
-        dump_stack();
-        return 0;
-}
-
-/*kprobe post_handler: called after the probed instruction is executed*/
-void handler_post(struct kprobe *p, struct pt_regs *regs, unsigned long flags)
-{
-        printk("post_handler: p->addr=0x%p, eflags=0x%lx\n",
-                p->addr, regs->eflags);
-}
-
-/* fault_handler: this is called if an exception is generated for any
- * instruction within the pre- or post-handler, or when Kprobes
- * single-steps the probed instruction.
- */
-int handler_fault(struct kprobe *p, struct pt_regs *regs, int trapnr)
-{
-        printk("fault_handler: p->addr=0x%p, trap #%dn",
-                p->addr, trapnr);
-        /* Return 0 because we don't handle the fault. */
-        return 0;
-}
-
-static int __init kprobe_init(void)
-{
-        int ret;
-        kp.pre_handler = handler_pre;
-        kp.post_handler = handler_post;
-        kp.fault_handler = handler_fault;
-        kp.symbol_name = "do_fork";
-
-        ret = register_kprobe(&kp);
-        if (ret < 0) {
-                printk("register_kprobe failed, returned %d\n", ret);
-                return ret;
-        }
-        printk("kprobe registered\n");
-        return 0;
-}
-
-static void __exit kprobe_exit(void)
-{
-        unregister_kprobe(&kp);
-        printk("kprobe unregistered\n");
-}
-
-module_init(kprobe_init)
-module_exit(kprobe_exit)
-MODULE_LICENSE("GPL");
------ cut here -----
-
-You can build the kernel module, kprobe-example.ko, using the following
-Makefile:
------ cut here -----
-obj-m := kprobe-example.o
-KDIR := /lib/modules/$(shell uname -r)/build
-PWD := $(shell pwd)
-default:
-        $(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules
-clean:
-        rm -f *.mod.c *.ko *.o
------ cut here -----
-
-$ make
-$ su -
-...
-# insmod kprobe-example.ko
-
-You will see the trace data in /var/log/messages and on the console
-whenever do_fork() is invoked to create a new process.
+See samples/kprobes/kprobe_example.c
 
 9. Jprobes Example
 
-Here's a sample kernel module showing the use of jprobes to dump
-the arguments of do_fork().
------ cut here -----
-/*jprobe-example.c */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/uio.h>
-#include <linux/kprobes.h>
-
-/*
- * Jumper probe for do_fork.
- * Mirror principle enables access to arguments of the probed routine
- * from the probe handler.
- */
-
-/* Proxy routine having the same arguments as actual do_fork() routine */
-long jdo_fork(unsigned long clone_flags, unsigned long stack_start,
-              struct pt_regs *regs, unsigned long stack_size,
-              int __user * parent_tidptr, int __user * child_tidptr)
-{
-        printk("jprobe: clone_flags=0x%lx, stack_size=0x%lx, regs=0x%p\n",
-               clone_flags, stack_size, regs);
-        /* Always end with a call to jprobe_return(). */
-        jprobe_return();
-        /*NOTREACHED*/
-        return 0;
-}
-
-static struct jprobe my_jprobe = {
-        .entry = jdo_fork
-};
-
-static int __init jprobe_init(void)
-{
-        int ret;
-        my_jprobe.kp.symbol_name = "do_fork";
-
-        if ((ret = register_jprobe(&my_jprobe)) <0) {
-                printk("register_jprobe failed, returned %d\n", ret);
-                return -1;
-        }
-        printk("Planted jprobe at %p, handler addr %p\n",
-               my_jprobe.kp.addr, my_jprobe.entry);
-        return 0;
-}
-
-static void __exit jprobe_exit(void)
-{
-        unregister_jprobe(&my_jprobe);
-        printk("jprobe unregistered\n");
-}
-
-module_init(jprobe_init)
-module_exit(jprobe_exit)
-MODULE_LICENSE("GPL");
------ cut here -----
-
-Build and insert the kernel module as shown in the above kprobe
-example.  You will see the trace data in /var/log/messages and on
-the console whenever do_fork() is invoked to create a new process.
-(Some messages may be suppressed if syslogd is configured to
-eliminate duplicate messages.)
+See samples/kprobes/jprobe_example.c
 
 10. Kretprobes Example
 
-Here's a sample kernel module showing the use of return probes to
-report failed calls to sys_open().
------ cut here -----
-/*kretprobe-example.c*/
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/kprobes.h>
-#include <linux/ktime.h>
-
-/* per-instance private data */
-struct my_data {
-        ktime_t entry_stamp;
-};
-
-static const char *probed_func = "sys_open";
-
-/* Timestamp function entry. */
-static int entry_handler(struct kretprobe_instance *ri, struct pt_regs *regs)
-{
-        struct my_data *data;
-
-        if(!current->mm)
-                return 1; /* skip kernel threads */
-
-        data = (struct my_data *)ri->data;
-        data->entry_stamp = ktime_get();
-        return 0;
-}
-
-/* If the probed function failed, log the return value and duration.
- * Duration may turn out to be zero consistently, depending upon the
- * granularity of time accounting on the platform. */
-static int return_handler(struct kretprobe_instance *ri, struct pt_regs *regs)
-{
-        int retval = regs_return_value(regs);
-        struct my_data *data = (struct my_data *)ri->data;
-        s64 delta;
-        ktime_t now;
-
-        if (retval < 0) {
-                now = ktime_get();
-                delta = ktime_to_ns(ktime_sub(now, data->entry_stamp));
-                printk("%s: return val = %d (duration = %lld ns)\n",
-                       probed_func, retval, delta);
-        }
-        return 0;
-}
-
-static struct kretprobe my_kretprobe = {
-        .handler = return_handler,
-        .entry_handler = entry_handler,
-        .data_size = sizeof(struct my_data),
-        .maxactive = 20, /* probe up to 20 instances concurrently */
-};
-
-static int __init kretprobe_init(void)
-{
-        int ret;
-        my_kretprobe.kp.symbol_name = (char *)probed_func;
-
-        if ((ret = register_kretprobe(&my_kretprobe)) < 0) {
-                printk("register_kretprobe failed, returned %d\n", ret);
-                return -1;
-        }
-        printk("Kretprobe active on %s\n", my_kretprobe.kp.symbol_name);
-        return 0;
-}
-
-static void __exit kretprobe_exit(void)
-{
-        unregister_kretprobe(&my_kretprobe);
-        printk("kretprobe unregistered\n");
-        /* nmissed > 0 suggests that maxactive was set too low. */
-        printk("Missed probing %d instances of %s\n",
-               my_kretprobe.nmissed, probed_func);
-}
-
-module_init(kretprobe_init)
-module_exit(kretprobe_exit)
-MODULE_LICENSE("GPL");
------ cut here -----
-
-Build and insert the kernel module as shown in the above kprobe
-example.  You will see the trace data in /var/log/messages and on the
-console whenever sys_open() returns a negative value.  (Some messages
-may be suppressed if syslogd is configured to eliminate duplicate
-messages.)
+See samples/kprobes/kretprobe_example.c
 
 For additional information on Kprobes, refer to the following URLs:
 http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
diff --git a/Documentation/pci.txt b/Documentation/pci.txt
index 72b20c639596..bb7bd27d4682 100644
--- a/Documentation/pci.txt
+++ b/Documentation/pci.txt
@@ -123,7 +123,8 @@ initialization with a pointer to a structure describing the driver
 
 
 The ID table is an array of struct pci_device_id entries ending with an
-all-zero entry.  Each entry consists of:
+all-zero entry; use of the macro DECLARE_PCI_DEVICE_TABLE is the preferred
+method of declaring the table.  Each entry consists of:
 
         vendor,device   Vendor and device ID to match (or PCI_ANY_ID)
 
@@ -191,7 +192,8 @@ Tips on when/where to use the above attributes:
 
         o Do not mark the struct pci_driver.
 
-        o The ID table array should be marked __devinitdata.
+        o The ID table array should be marked __devinitconst; this is done
+          automatically if the table is declared with DECLARE_PCI_DEVICE_TABLE().
 
         o The probe() and remove() functions should be marked __devinit
           and __devexit respectively.  All initialization functions
diff --git a/MAINTAINERS b/MAINTAINERS
index 33d99dcac691..558636e3a954 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -767,14 +767,14 @@ S:	Maintained
 
 BLACKFIN ARCHITECTURE
 P:      Bryan Wu
-M:      bryan.wu@analog.com
+M:      cooloney@kernel.org
 L:      uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
 W:      http://blackfin.uclinux.org
 S:      Supported
 
 BLACKFIN EMAC DRIVER
 P:      Bryan Wu
-M:      bryan.wu@analog.com
+M:      cooloney@kernel.org
 L:      uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
 W:      http://blackfin.uclinux.org
 S:      Supported
@@ -1138,6 +1138,12 @@ L:	accessrunner-general@lists.sourceforge.net
 W:      http://accessrunner.sourceforge.net/
 S:      Maintained
 
+CONTROL GROUPS (CGROUPS)
+P:      Paul Menage
+M:      menage@google.com
+L:      containers@lists.linux-foundation.org
+S:      Maintained
+
 CORETEMP HARDWARE MONITORING DRIVER
 P:      Rudolf Marek
 M:      r.marek@assembler.cz
@@ -1589,6 +1595,13 @@ L:	linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      http://linux-fbdev.sourceforge.net/
 S:      Maintained
 
+FREESCALE DMA DRIVER
+P;      Zhang Wei
+M:      wei.zhang@freescale.com
+L:      linuxppc-embedded@ozlabs.org
+L:      linux-kernel@vger.kernel.org
+S:      Maintained
+
 FREESCALE SOC FS_ENET DRIVER
 P:      Pantelis Antoniou
 M:      pantelis.antoniou@gmail.com
@@ -2626,6 +2639,17 @@ L:	linux-kernel@vger.kernel.org
 W:      http://www.linux-mm.org
 S:      Maintained
 
+MEMORY RESOURCE CONTROLLER
+P:      Balbir Singh
+M:      balbir@linux.vnet.ibm.com
+P:      Pavel Emelyanov
+M:      xemul@openvz.org
+P:      KAMEZAWA Hiroyuki
+M:      kamezawa.hiroyu@jp.fujitsu.com
+L:      linux-mm@kvack.org
+L:      linux-kernel@vger.kernel.org
+S:      Maintained
+
 MEI MN10300/AM33 PORT
 P:      David Howells
 M:      dhowells@redhat.com
@@ -2750,6 +2774,8 @@ S:	Maintained
 NETEFFECT IWARP RNIC DRIVER (IW_NES)
 P:      Faisal Latif
 M:      flatif@neteffect.com
+P:      Nishi Gupta
+M:      ngupta@neteffect.com
 P:      Glenn Streiff
 M:      gstreiff@neteffect.com
 L:      general@lists.openfabrics.org
diff --git a/arch/Kconfig b/arch/Kconfig
index 3d72dc3fc8f5..694c9af520bb 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -27,5 +27,12 @@ config KPROBES
           for kernel debugging, non-intrusive instrumentation and testing.
           If in doubt, say "N".
 
+config KRETPROBES
+        def_bool y
+        depends on KPROBES && HAVE_KRETPROBES
+
 config HAVE_KPROBES
         def_bool n
+
+config HAVE_KRETPROBES
+        def_bool n
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 26d3789dfdd0..be6fa105cd34 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -31,7 +31,6 @@
 #endif
 
 #define DEBUG_NODIRECT 0
-#define DEBUG_FORCEDAC 0
 
 #define ISA_DMA_MASK            0x00ffffff
 
@@ -126,39 +125,67 @@ iommu_arena_new(struct pci_controller *hose, dma_addr_t base,
         return iommu_arena_new_node(0, hose, base, window_size, align);
 }
 
+static inline int is_span_boundary(unsigned int index, unsigned int nr,
+                                   unsigned long shift,
+                                   unsigned long boundary_size)
+{
+        shift = (shift + index) & (boundary_size - 1);
+        return shift + nr > boundary_size;
+}
+
 /* Must be called with the arena lock held */
 static long
-iommu_arena_find_pages(struct pci_iommu_arena *arena, long n, long mask)
+iommu_arena_find_pages(struct device *dev, struct pci_iommu_arena *arena,
+                       long n, long mask)
 {
         unsigned long *ptes;
         long i, p, nent;
+        int pass = 0;
+        unsigned long base;
+        unsigned long boundary_size;
+
+        BUG_ON(arena->dma_base & ~PAGE_MASK);
+        base = arena->dma_base >> PAGE_SHIFT;
+        if (dev)
+                boundary_size = ALIGN(dma_get_max_seg_size(dev) + 1, PAGE_SIZE)
+                        >> PAGE_SHIFT;
+        else
+                boundary_size = ALIGN(1UL << 32, PAGE_SIZE) >> PAGE_SHIFT;
+
+        BUG_ON(!is_power_of_2(boundary_size));
 
         /* Search forward for the first mask-aligned sequence of N free ptes */
         ptes = arena->ptes;
         nent = arena->size >> PAGE_SHIFT;
-        p = (arena->next_entry + mask) & ~mask;
+        p = ALIGN(arena->next_entry, mask + 1);
         i = 0;
+
+again:
         while (i < n && p+i < nent) {
+                if (!i && is_span_boundary(p, n, base, boundary_size)) {
+                        p = ALIGN(p + 1, mask + 1);
+                        goto again;
+                }
+
                 if (ptes[p+i])
-                        p = (p + i + 1 + mask) & ~mask, i = 0;
+                        p = ALIGN(p + i + 1, mask + 1), i = 0;
                 else
                         i = i + 1;
         }
 
         if (i < n) {
-                /* Reached the end.  Flush the TLB and restart the
-                   search from the beginning.  */
-                alpha_mv.mv_pci_tbi(arena->hose, 0, -1);
-
-                p = 0, i = 0;
-                while (i < n && p+i < nent) {
-                        if (ptes[p+i])
-                                p = (p + i + 1 + mask) & ~mask, i = 0;
-                        else
-                                i = i + 1;
-                }
-
-                if (i < n)
+                if (pass < 1) {
+                        /*
+                         * Reached the end.  Flush the TLB and restart
+                         * the search from the beginning.
+                        */
+                        alpha_mv.mv_pci_tbi(arena->hose, 0, -1);
+
+                        pass++;
+                        p = 0;
+                        i = 0;
+                        goto again;
+                } else
                         return -1;
         }
 
@@ -168,7 +195,8 @@ iommu_arena_find_pages(struct pci_iommu_arena *arena, long n, long mask)
 }
 
 static long
-iommu_arena_alloc(struct pci_iommu_arena *arena, long n, unsigned int align)
+iommu_arena_alloc(struct device *dev, struct pci_iommu_arena *arena, long n,
+                  unsigned int align)
 {
         unsigned long flags;
         unsigned long *ptes;
@@ -179,7 +207,7 @@ iommu_arena_alloc(struct pci_iommu_arena *arena, long n, unsigned int align)
         /* Search for N empty ptes */
         ptes = arena->ptes;
         mask = max(align, arena->align_entry) - 1;
-        p = iommu_arena_find_pages(arena, n, mask);
+        p = iommu_arena_find_pages(dev, arena, n, mask);
         if (p < 0) {
                 spin_unlock_irqrestore(&arena->lock, flags);
                 return -1;
@@ -229,6 +257,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size,
         unsigned long paddr;
         dma_addr_t ret;
         unsigned int align = 0;
+        struct device *dev = pdev ? &pdev->dev : NULL;
 
         paddr = __pa(cpu_addr);
 
@@ -276,7 +305,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size,
         /* Force allocation to 64KB boundary for ISA bridges. */
         if (pdev && pdev == isa_bridge)
                 align = 8;
-        dma_ofs = iommu_arena_alloc(arena, npages, align);
+        dma_ofs = iommu_arena_alloc(dev, arena, npages, align);
         if (dma_ofs < 0) {
                 printk(KERN_WARNING "pci_map_single failed: "
                        "could not allocate dma page tables\n");
@@ -563,7 +592,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end,
 
         paddr &= ~PAGE_MASK;
         npages = calc_npages(paddr + size);
-        dma_ofs = iommu_arena_alloc(arena, npages, 0);
+        dma_ofs = iommu_arena_alloc(dev, arena, npages, 0);
         if (dma_ofs < 0) {
                 /* If we attempted a direct map above but failed, die.  */
                 if (leader->dma_address == 0)
@@ -830,7 +859,7 @@ iommu_reserve(struct pci_iommu_arena *arena, long pg_count, long align_mask)
 
         /* Search for N empty ptes.  */
         ptes = arena->ptes;
-        p = iommu_arena_find_pages(arena, pg_count, align_mask);
+        p = iommu_arena_find_pages(NULL, arena, pg_count, align_mask);
         if (p < 0) {
                 spin_unlock_irqrestore(&arena->lock, flags);
                 return -1;
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9619c43783ff..955fc53c1c01 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -12,6 +12,7 @@ config ARM
         select SYS_SUPPORTS_APM_EMULATION
         select HAVE_OPROFILE
         select HAVE_KPROBES if (!XIP_KERNEL)
+        select HAVE_KRETPROBES if (HAVE_KPROBES)
         help
           The ARM series is a line of low-power-consumption RISC chip designs
           licensed by ARM Ltd and targeted at embedded applications and
@@ -939,7 +940,8 @@ config KEXEC
 
 config ATAGS_PROC
         bool "Export atags in procfs"
-        default n
+        depends on KEXEC
+        default y
         help
           Should the atags used to boot the kernel be exported in an "atags"
           file in procfs. Useful with kexec.
diff --git a/arch/arm/mach-pxa/cpu-pxa.c b/arch/arm/mach-pxa/cpu-pxa.c
index 939a3867f77c..4b21479332ae 100644
--- a/arch/arm/mach-pxa/cpu-pxa.c
+++ b/arch/arm/mach-pxa/cpu-pxa.c
@@ -43,7 +43,7 @@
 
 #ifdef DEBUG
 static unsigned int freq_debug;
-MODULE_PARM(freq_debug, "i");
+module_param(freq_debug, uint, 0);
 MODULE_PARM_DESC(freq_debug, "Set the debug messages to on=1/off=0");
 #else
 #define freq_debug  0
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 7cd9ef8deb02..35f25fdaeba3 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -129,28 +129,20 @@ static void clk_pxa3xx_cken_enable(struct clk *clk)
 {
         unsigned long mask = 1ul << (clk->cken & 0x1f);
 
-        local_irq_disable();
-
         if (clk->cken < 32)
                 CKENA |= mask;
         else
                 CKENB |= mask;
-
-        local_irq_enable();
 }
 
 static void clk_pxa3xx_cken_disable(struct clk *clk)
 {
         unsigned long mask = 1ul << (clk->cken & 0x1f);
 
-        local_irq_disable();
-
         if (clk->cken < 32)
                 CKENA &= ~mask;
         else
                 CKENB &= ~mask;
-
-        local_irq_enable();
 }
 
 static const struct clkops clk_pxa3xx_cken_ops = {
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index 7731d50dd86c..afd2cbfca0d9 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -58,7 +58,7 @@ static struct platform_device smc91x_device = {
         .resource       = smc91x_resources,
 };
 
-#if defined(CONFIG_FB_PXA) || (CONFIG_FB_PXA_MODULES)
+#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 static void zylonite_backlight_power(int on)
 {
         gpio_set_value(gpio_backlight, on);
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 2728b0e7d2bb..3f6dc40b8353 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -120,6 +120,8 @@ full_search:
  */
 int valid_phys_addr_range(unsigned long addr, size_t size)
 {
+        if (addr < PHYS_OFFSET)
+                return 0;
         if (addr + size > __pa(high_memory))
                 return 0;
 
diff --git a/arch/arm/mm/pgd.c b/arch/arm/mm/pgd.c
index 500c9610ab30..e0f19ab91163 100644
--- a/arch/arm/mm/pgd.c
+++ b/arch/arm/mm/pgd.c
@@ -75,7 +75,7 @@ no_pgd:
 void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd)
 {
         pmd_t *pmd;
-        struct page *pte;
+        pgtable_t pte;
 
         if (!pgd)
                 return;
@@ -90,10 +90,8 @@ void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd)
                 goto free;
         }
 
-        pte = pmd_page(*pmd);
+        pte = pmd_pgtable(*pmd);
         pmd_clear(pmd);
-        dec_zone_page_state(virt_to_page((unsigned long *)pgd), NR_PAGETABLE);
-        pte_lock_deinit(pte);
         pte_free(mm, pte);
         pmd_free(mm, pmd);
 free:
diff --git a/arch/avr32/boards/atstk1000/atstk1004.c b/arch/avr32/boards/atstk1000/atstk1004.c
index 5a77030e07a0..e765a8652b3e 100644
--- a/arch/avr32/boards/atstk1000/atstk1004.c
+++ b/arch/avr32/boards/atstk1000/atstk1004.c
@@ -129,7 +129,7 @@ static int __init atstk1004_init(void)
 #ifdef CONFIG_BOARD_ATSTK100X_SPI1
         at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
 #endif
-#ifndef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
+#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
         at32_add_device_mci(0);
 #endif
         at32_add_device_lcdc(0, &atstk1000_lcdc_data,
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index eaaa69bbdc38..7f4af0b1e111 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -11,6 +11,7 @@
 #include <linux/fs.h>
 #include <linux/ptrace.h>
 #include <linux/reboot.h>
+#include <linux/tick.h>
 #include <linux/uaccess.h>
 #include <linux/unistd.h>
 
@@ -30,8 +31,10 @@ void cpu_idle(void)
 {
         /* endless idle loop with no priority at all */
         while (1) {
+                tick_nohz_stop_sched_tick();
                 while (!need_resched())
                         cpu_idle_sleep();
+                tick_nohz_restart_sched_tick();
                 preempt_enable_no_resched();
                 schedule();
                 preempt_disable();
@@ -345,6 +348,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
         p->thread.cpu_context.ksp = (unsigned long)childregs;
         p->thread.cpu_context.pc = (unsigned long)ret_from_fork;
 
+        clear_tsk_thread_flag(p, TIF_DEBUG);
         if ((clone_flags & CLONE_PTRACE) && test_thread_flag(TIF_DEBUG))
                 ocd_enable(p);
 
diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
index 6560cb18b4e3..ce4e4296b954 100644
--- a/arch/avr32/mm/fault.c
+++ b/arch/avr32/mm/fault.c
@@ -189,6 +189,8 @@ no_context:
 
         page = sysreg_read(PTBR);
         printk(KERN_ALERT "ptbr = %08lx", page);
+        if (address >= TASK_SIZE)
+                page = (unsigned long)swapper_pg_dir;
         if (page) {
                 page = ((unsigned long *)page)[address >> 22];
                 printk(" pgd = %08lx", page);
diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index fe254f886a6e..75eba2ca7881 100644
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -98,8 +98,11 @@ drivers-$(CONFIG_OPROFILE) += arch/$(ARCH)/oprofile/
 #       them changed.  We use .mach to indicate when they were updated
 #       last, otherwise make uses the target directory mtime.
 
+       show_mach_symlink = :
+ quiet_show_mach_symlink = echo '  SYMLINK include/asm-$(ARCH)/mach-$(MACHINE) -> include/asm-$(ARCH)/mach'
+silent_show_mach_symlink = :
 include/asm-blackfin/.mach: $(wildcard include/config/arch/*.h) include/config/auto.conf
-        @echo '  SYMLINK include/asm-$(ARCH)/mach-$(MACHINE) -> include/asm-$(ARCH)/mach'
+        @$($(quiet)show_mach_symlink)
 ifneq ($(KBUILD_SRC),)
         $(Q)mkdir -p include/asm-$(ARCH)
         $(Q)ln -fsn $(srctree)/include/asm-$(ARCH)/mach-$(MACHINE) include/asm-$(ARCH)/mach
diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig
index d59ee1530bd4..ae320dcfedef 100644
--- a/arch/blackfin/configs/BF527-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF527-EZKIT_defconfig
@@ -1,7 +1,6 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22.14
-# Thu Nov 29 17:32:47 2007
+# Linux kernel version: 2.6.22.16
 #
 # CONFIG_MMU is not set
 # CONFIG_FPU is not set
@@ -116,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y
 # Processor and Board Settings
 #
 # CONFIG_BF522 is not set
+# CONFIG_BF523 is not set
+# CONFIG_BF524 is not set
 # CONFIG_BF525 is not set
+# CONFIG_BF526 is not set
 CONFIG_BF527=y
 # CONFIG_BF531 is not set
 # CONFIG_BF532 is not set
@@ -306,6 +308,7 @@ CONFIG_BFIN_DCACHE=y
 # CONFIG_BFIN_WB is not set
 CONFIG_BFIN_WT=y
 CONFIG_L1_MAX_PIECE=16
+# CONFIG_MPU is not set
 
 #
 # Asynchonous Memory Configuration
@@ -354,6 +357,7 @@ CONFIG_BINFMT_ZFLAT=y
 # Power management options
 #
 # CONFIG_PM is not set
+# CONFIG_PM_WAKEUP_BY_GPIO is not set
 
 #
 # Networking
@@ -496,7 +500,6 @@ CONFIG_MTD_CFI_I2=y
 # CONFIG_MTD_CFI_INTELEXT is not set
 # CONFIG_MTD_CFI_AMDSTD is not set
 # CONFIG_MTD_CFI_STAA is not set
-CONFIG_MTD_MW320D=m
 CONFIG_MTD_RAM=y
 CONFIG_MTD_ROM=m
 # CONFIG_MTD_ABSENT is not set
@@ -506,9 +509,6 @@ CONFIG_MTD_ROM=m
 #
 CONFIG_MTD_COMPLEX_MAPPINGS=y
 # CONFIG_MTD_PHYSMAP is not set
-CONFIG_MTD_BF5xx=m
-CONFIG_BFIN_FLASH_SIZE=0x400000
-CONFIG_EBIU_FLASH_BASE=0x20000000
 # CONFIG_MTD_UCLINUX is not set
 # CONFIG_MTD_PLATRAM is not set
 
@@ -684,7 +684,6 @@ CONFIG_INPUT_MISC=y
 # CONFIG_INPUT_POWERMATE is not set
 # CONFIG_INPUT_YEALINK is not set
 # CONFIG_INPUT_UINPUT is not set
-# CONFIG_BF53X_PFBUTTONS is not set
 # CONFIG_TWI_KEYPAD is not set
 
 #
@@ -702,12 +701,12 @@ CONFIG_INPUT_MISC=y
 # CONFIG_BF5xx_PPIFCD is not set
 # CONFIG_BFIN_SIMPLE_TIMER is not set
 # CONFIG_BF5xx_PPI is not set
+CONFIG_BFIN_OTP=y
+# CONFIG_BFIN_OTP_WRITE_ENABLE is not set
 # CONFIG_BFIN_SPORT is not set
 # CONFIG_BFIN_TIMER_LATENCY is not set
 # CONFIG_TWI_LCD is not set
 # CONFIG_AD5304 is not set
-# CONFIG_BF5xx_TEA5764 is not set
-# CONFIG_BF5xx_FBDMA is not set
 # CONFIG_VT is not set
 # CONFIG_SERIAL_NONSTANDARD is not set
 
@@ -772,7 +771,6 @@ CONFIG_I2C_CHARDEV=m
 #
 # I2C Hardware Bus support
 #
-# CONFIG_I2C_BLACKFIN_GPIO is not set
 CONFIG_I2C_BLACKFIN_TWI=m
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=50
 # CONFIG_I2C_GPIO is not set
diff --git a/arch/blackfin/configs/BF533-EZKIT_defconfig b/arch/blackfin/configs/BF533-EZKIT_defconfig
index 811711f59a25..9621caa60b5f 100644
--- a/arch/blackfin/configs/BF533-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF533-EZKIT_defconfig
@@ -322,10 +322,9 @@ CONFIG_PM=y
 # CONFIG_PM_LEGACY is not set
 # CONFIG_PM_DEBUG is not set
 # CONFIG_PM_SYSFS_DEPRECATED is not set
-CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y
+CONFIG_PM_BFIN_SLEEP_DEEPER=y
+# CONFIG_PM_BFIN_SLEEP is not set
 # CONFIG_PM_WAKEUP_BY_GPIO is not set
-# CONFIG_PM_WAKEUP_GPIO_API is not set
-CONFIG_PM_WAKEUP_SIC_IWR=0x80
 
 #
 # CPU Frequency scaling
@@ -697,7 +696,6 @@ CONFIG_SERIAL_BFIN_DMA=y
 # CONFIG_SERIAL_BFIN_PIO is not set
 CONFIG_SERIAL_BFIN_UART0=y
 # CONFIG_BFIN_UART0_CTSRTS is not set
-# CONFIG_SERIAL_BFIN_UART1 is not set
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 # CONFIG_SERIAL_BFIN_SPORT is not set
diff --git a/arch/blackfin/configs/BF533-STAMP_defconfig b/arch/blackfin/configs/BF533-STAMP_defconfig
index 198f4123af4b..b51e76ce7f4f 100644
--- a/arch/blackfin/configs/BF533-STAMP_defconfig
+++ b/arch/blackfin/configs/BF533-STAMP_defconfig
@@ -323,10 +323,9 @@ CONFIG_PM=y
 # CONFIG_PM_LEGACY is not set
 # CONFIG_PM_DEBUG is not set
 # CONFIG_PM_SYSFS_DEPRECATED is not set
-CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y
+CONFIG_PM_BFIN_SLEEP_DEEPER=y
+# CONFIG_PM_BFIN_SLEEP is not set
 # CONFIG_PM_WAKEUP_BY_GPIO is not set
-# CONFIG_PM_WAKEUP_GPIO_API is not set
-CONFIG_PM_WAKEUP_SIC_IWR=0x80
 
 #
 # CPU Frequency scaling
@@ -714,7 +713,6 @@ CONFIG_SERIAL_BFIN_DMA=y
 # CONFIG_SERIAL_BFIN_PIO is not set
 CONFIG_SERIAL_BFIN_UART0=y
 # CONFIG_BFIN_UART0_CTSRTS is not set
-# CONFIG_SERIAL_BFIN_UART1 is not set
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 # CONFIG_SERIAL_BFIN_SPORT is not set
diff --git a/arch/blackfin/configs/BF537-STAMP_defconfig b/arch/blackfin/configs/BF537-STAMP_defconfig
index b37ccc681e7a..d45fa535dad7 100644
--- a/arch/blackfin/configs/BF537-STAMP_defconfig
+++ b/arch/blackfin/configs/BF537-STAMP_defconfig
@@ -330,10 +330,9 @@ CONFIG_PM=y
 # CONFIG_PM_LEGACY is not set
 # CONFIG_PM_DEBUG is not set
 # CONFIG_PM_SYSFS_DEPRECATED is not set
-CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y
+CONFIG_PM_BFIN_SLEEP_DEEPER=y
+# CONFIG_PM_BFIN_SLEEP is not set
 # CONFIG_PM_WAKEUP_BY_GPIO is not set
-# CONFIG_PM_WAKEUP_GPIO_API is not set
-CONFIG_PM_WAKEUP_SIC_IWR=0x8
 
 #
 # CPU Frequency scaling
@@ -1013,6 +1012,7 @@ CONFIG_SND_BFIN_AD73311_SE=4
 CONFIG_SND_SOC_AC97_BUS=y
 CONFIG_SND_SOC=m
 CONFIG_SND_BF5XX_SOC=m
+CONFIG_SND_MMAP_SUPPORT=y
 CONFIG_SND_BF5XX_SOC_AC97=m
 # CONFIG_SND_BF5XX_SOC_WM8750 is not set
 # CONFIG_SND_BF5XX_SOC_WM8731 is not set
diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig
index fd702161ef59..c9707f7665ad 100644
--- a/arch/blackfin/configs/BF548-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF548-EZKIT_defconfig
@@ -396,6 +396,7 @@ CONFIG_BINFMT_ZFLAT=y
 # Power management options
 #
 # CONFIG_PM is not set
+# CONFIG_PM_WAKEUP_BY_GPIO is not set
 
 #
 # CPU Frequency scaling
@@ -1075,6 +1076,7 @@ CONFIG_SND_VERBOSE_PROCFS=y
 CONFIG_SND_SOC_AC97_BUS=y
 CONFIG_SND_SOC=y
 CONFIG_SND_BF5XX_SOC=y
+CONFIG_SND_MMAP_SUPPORT=y
 CONFIG_SND_BF5XX_SOC_AC97=y
 CONFIG_SND_BF5XX_SOC_BF548_EZKIT=y
 # CONFIG_SND_BF5XX_SOC_WM8750 is not set
diff --git a/arch/blackfin/configs/BF561-EZKIT_defconfig b/arch/blackfin/configs/BF561-EZKIT_defconfig
index 8546994939fb..4d8a63331309 100644
--- a/arch/blackfin/configs/BF561-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF561-EZKIT_defconfig
@@ -367,6 +367,7 @@ CONFIG_BINFMT_ZFLAT=y
 # Power management options
 #
 # CONFIG_PM is not set
+# CONFIG_PM_WAKEUP_BY_GPIO is not set
 
 #
 # Networking
diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c
index 5453bc3664fc..8fd5d22cec34 100644
--- a/arch/blackfin/kernel/bfin_dma_5xx.c
+++ b/arch/blackfin/kernel/bfin_dma_5xx.c
@@ -105,13 +105,14 @@ int request_dma(unsigned int channel, char *device_id)
         mutex_unlock(&(dma_ch[channel].dmalock));
 
 #ifdef CONFIG_BF54x
-        if (channel >= CH_UART2_RX && channel <= CH_UART3_TX &&
-                strncmp(device_id, "BFIN_UART", 9) == 0)
-                dma_ch[channel].regs->peripheral_map |=
-                        (channel - CH_UART2_RX + 0xC);
-        else
-                dma_ch[channel].regs->peripheral_map |=
-                        (channel - CH_UART2_RX + 0x6);
+        if (channel >= CH_UART2_RX && channel <= CH_UART3_TX) {
+                if (strncmp(device_id, "BFIN_UART", 9) == 0)
+                        dma_ch[channel].regs->peripheral_map |=
+                                (channel - CH_UART2_RX + 0xC);
+                else
+                        dma_ch[channel].regs->peripheral_map |=
+                                (channel - CH_UART2_RX + 0x6);
+        }
 #endif
 
         dma_ch[channel].device_id = device_id;
diff --git a/arch/blackfin/kernel/gptimers.c b/arch/blackfin/kernel/gptimers.c
index 5cf4bdb1df3b..1904d8b53328 100644
--- a/arch/blackfin/kernel/gptimers.c
+++ b/arch/blackfin/kernel/gptimers.c
@@ -1,9 +1,9 @@
 /*
- * bfin_gptimers.c - derived from bf53x_timers.c
- *  Driver for General Purpose Timer functions on the Blackfin processor
+ * gptimers.c - Blackfin General Purpose Timer core API
  *
- *  Copyright (C) 2005 John DeHority
- *  Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
+ * Copyright (c) 2005-2008 Analog Devices Inc.
+ * Copyright (C) 2005 John DeHority
+ * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
  *
  * Licensed under the GPLv2.
  */
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 8229b1090eb9..2255c289a714 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -32,6 +32,7 @@
 static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
 u16 _bfin_swrst;
+EXPORT_SYMBOL(_bfin_swrst);
 
 unsigned long memory_start, memory_end, physical_mem_end;
 unsigned long reserved_mem_dcache_on;
@@ -514,6 +515,7 @@ static __init void  memory_setup(void)
         printk(KERN_INFO "Kernel Managed Memory: %ldMB\n", _ramend >> 20);
 
         printk(KERN_INFO "Memory map:\n"
+                KERN_INFO "  fixedcode = 0x%p-0x%p\n"
                 KERN_INFO "  text      = 0x%p-0x%p\n"
                 KERN_INFO "  rodata    = 0x%p-0x%p\n"
                 KERN_INFO "  bss       = 0x%p-0x%p\n"
@@ -527,7 +529,8 @@ static __init void  memory_setup(void)
 #if DMA_UNCACHED_REGION > 0
                 KERN_INFO "  DMA Zone  = 0x%p-0x%p\n"
 #endif
-                , _stext, _etext,
+                , (void *)FIXED_CODE_START, (void *)FIXED_CODE_END,
+                _stext, _etext,
                 __start_rodata, __end_rodata,
                 __bss_start, __bss_stop,
                 _sdata, _edata,
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index aed832540b3b..cb01a9de2680 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -147,44 +147,64 @@ SECTIONS
 
         __l1_lma_start = .;
 
+#if L1_CODE_LENGTH
+# define LDS_L1_CODE *(.l1.text)
+#else
+# define LDS_L1_CODE
+#endif
         .text_l1 L1_CODE_START : AT(LOADADDR(.init.ramfs) + SIZEOF(.init.ramfs))
         {
                 . = ALIGN(4);
                 __stext_l1 = .;
-                *(.l1.text)
-
+                LDS_L1_CODE
                 . = ALIGN(4);
                 __etext_l1 = .;
         }
 
+#if L1_DATA_A_LENGTH
+# define LDS_L1_A_DATA  *(.l1.data)
+# define LDS_L1_A_BSS   *(.l1.bss)
+# define LDS_L1_A_CACHE *(.data_l1.cacheline_aligned)
+#else
+# define LDS_L1_A_DATA
+# define LDS_L1_A_BSS
+# define LDS_L1_A_CACHE
+#endif
         .data_l1 L1_DATA_A_START : AT(LOADADDR(.text_l1) + SIZEOF(.text_l1))
         {
                 . = ALIGN(4);
                 __sdata_l1 = .;
-                *(.l1.data)
+                LDS_L1_A_DATA
                 __edata_l1 = .;
 
                 . = ALIGN(4);
                 __sbss_l1 = .;
-                *(.l1.bss)
+                LDS_L1_A_BSS
 
                 . = ALIGN(32);
-                *(.data_l1.cacheline_aligned)
+                LDS_L1_A_CACHE
 
                 . = ALIGN(4);
                 __ebss_l1 = .;
         }
 
+#if L1_DATA_B_LENGTH
+# define LDS_L1_B_DATA  *(.l1.data.B)
+# define LDS_L1_B_BSS   *(.l1.bss.B)
+#else
+# define LDS_L1_B_DATA
+# define LDS_L1_B_BSS
+#endif
         .data_b_l1 L1_DATA_B_START : AT(LOADADDR(.data_l1) + SIZEOF(.data_l1))
         {
                 . = ALIGN(4);
                 __sdata_b_l1 = .;
-                *(.l1.data.B)
+                LDS_L1_B_DATA
                 __edata_b_l1 = .;
 
                 . = ALIGN(4);
                 __sbss_b_l1 = .;
-                *(.l1.bss.B)
+                LDS_L1_B_BSS
 
                 . = ALIGN(4);
                 __ebss_b_l1 = .;
diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 337515fba612..cf4bc0d83355 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -180,8 +180,8 @@ static struct mtd_partition partition_info[] = {
         },
         {
                 .name = "File System",
-                .offset = 4 * SIZE_1M,
-                .size = (256 - 4) * SIZE_1M,
+                .offset = MTDPART_OFS_APPEND,
+                .size = MTDPART_SIZ_FULL,
         },
 };
 
@@ -422,11 +422,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = {
         }, {
                 .name = "kernel",
                 .size = 0xe0000,
-                .offset = 0x20000
+                .offset = MTDPART_OFS_APPEND,
         }, {
                 .name = "file system",
-                .size = 0x700000,
-                .offset = 0x00100000,
+                .size = MTDPART_SIZ_FULL,
+                .offset = MTDPART_OFS_APPEND,
         }
 };
 
@@ -484,13 +484,6 @@ static struct bfin5xx_spi_chip spi_si3xxx_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE)
-static struct bfin5xx_spi_chip ad5304_chip_info = {
-        .enable_dma = 0,
-        .bits_per_word = 16,
-};
-#endif
-
 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
 static struct bfin5xx_spi_chip spi_ad7877_chip_info = {
         .enable_dma = 0,
@@ -611,17 +604,6 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE)
-        {
-                .modalias = "ad5304_spi",
-                .max_speed_hz = 1250000,     /* max spi clock (SCK) speed in HZ */
-                .bus_num = 0,
-                .chip_select = 2,
-                .platform_data = NULL,
-                .controller_data = &ad5304_chip_info,
-                .mode = SPI_MODE_2,
-        },
-#endif
 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
         {
                 .modalias               = "ad7877",
@@ -818,6 +800,19 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
+static struct resource bfin_gpios_resources = {
+        .start = 0,
+        .end   = MAX_BLACKFIN_GPIOS - 1,
+        .flags = IORESOURCE_IRQ,
+};
+
+static struct platform_device bfin_gpios_device = {
+        .name = "simple-gpio",
+        .id = -1,
+        .num_resources = 1,
+        .resource = &bfin_gpios_resources,
+};
+
 static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
         &bf5xx_nand_device,
@@ -895,6 +890,8 @@ static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
         &bfin_device_gpiokeys,
 #endif
+
+        &bfin_gpios_device,
 };
 
 static int __init stamp_init(void)
@@ -921,13 +918,18 @@ void native_machine_restart(char *cmd)
                 bfin_gpio_reset_spi0_ssel1();
 }
 
-/*
- * Currently the MAC address is saved in Flash by U-Boot
- */
-#define FLASH_MAC       0x203f0000
 void bfin_get_ether_addr(char *addr)
 {
-        *(u32 *)(&(addr[0])) = bfin_read32(FLASH_MAC);
-        *(u16 *)(&(addr[4])) = bfin_read16(FLASH_MAC + 4);
+        /* the MAC is stored in OTP memory page 0xDF */
+        u32 ret;
+        u64 otp_mac;
+        u32 (*otp_read)(u32 page, u32 flags, u64 *page_content) = (void *)0xEF00001A;
+
+        ret = otp_read(0xDF, 0x00, &otp_mac);
+        if (!(ret & 0x1)) {
+                char *otp_mac_p = (char *)&otp_mac;
+                for (ret = 0; ret < 6; ++ret)
+                        addr[ret] = otp_mac_p[5 - ret];
+        }
 }
 EXPORT_SYMBOL(bfin_get_ether_addr);
diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c
index 2b09aa39f565..241b5a20a36a 100644
--- a/arch/blackfin/mach-bf533/boards/ezkit.c
+++ b/arch/blackfin/mach-bf533/boards/ezkit.c
@@ -99,11 +99,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = {
         }, {
                 .name = "kernel",
                 .size = 0xe0000,
-                .offset = 0x20000
+                .offset = MTDPART_OFS_APPEND,
         }, {
                 .name = "file system",
-                .size = 0x700000,
-                .offset = 0x00100000,
+                .size = MTDPART_SIZ_FULL,
+                .offset = MTDPART_OFS_APPEND,
         }
 };
 
@@ -298,6 +298,19 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
+static struct resource bfin_gpios_resources = {
+        .start = 0,
+        .end   = MAX_BLACKFIN_GPIOS - 1,
+        .flags = IORESOURCE_IRQ,
+};
+
+static struct platform_device bfin_gpios_device = {
+        .name = "simple-gpio",
+        .id = -1,
+        .num_resources = 1,
+        .resource = &bfin_gpios_resources,
+};
+
 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 #include <linux/i2c-gpio.h>
 
@@ -350,6 +363,8 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
         &i2c_gpio_device,
 #endif
+
+        &bfin_gpios_device,
 };
 
 static int __init ezkit_init(void)
diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index a645f6fd091b..b2ac4816ae62 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -112,7 +112,7 @@ static struct platform_device net2272_bfin_device = {
 static struct mtd_partition stamp_partitions[] = {
         {
                 .name   = "Bootloader",
-                .size   = 0x20000,
+                .size   = 0x40000,
                 .offset = 0,
         }, {
                 .name   = "Kernel",
@@ -160,17 +160,17 @@ static struct platform_device stamp_flash_device = {
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader",
-                .size = 0x00020000,
+                .size = 0x00040000,
                 .offset = 0,
                 .mask_flags = MTD_CAP_ROM
         }, {
                 .name = "kernel",
                 .size = 0xe0000,
-                .offset = 0x20000
+                .offset = MTDPART_OFS_APPEND,
         }, {
                 .name = "file system",
-                .size = 0x700000,
-                .offset = 0x00100000,
+                .size = MTDPART_SIZ_FULL,
+                .offset = MTDPART_OFS_APPEND,
         }
 };
 
@@ -212,13 +212,6 @@ static struct bfin5xx_spi_chip spi_si3xxx_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE)
-static struct bfin5xx_spi_chip ad5304_chip_info = {
-        .enable_dma = 0,
-        .bits_per_word = 16,
-};
-#endif
-
 #if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE)
 static struct bfin5xx_spi_chip spi_mmc_chip_info = {
         .enable_dma = 1,
@@ -308,17 +301,6 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE)
-        {
-                .modalias = "ad5304_spi",
-                .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
-                .bus_num = 0,
-                .chip_select = 2,
-                .platform_data = NULL,
-                .controller_data = &ad5304_chip_info,
-                .mode = SPI_MODE_2,
-        },
-#endif
 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
         {
                 .modalias = "spidev",
@@ -457,6 +439,19 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
+static struct resource bfin_gpios_resources = {
+        .start = 0,
+        .end   = MAX_BLACKFIN_GPIOS - 1,
+        .flags = IORESOURCE_IRQ,
+};
+
+static struct platform_device bfin_gpios_device = {
+        .name = "simple-gpio",
+        .id = -1,
+        .num_resources = 1,
+        .resource = &bfin_gpios_resources,
+};
+
 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 #include <linux/i2c-gpio.h>
 
@@ -518,6 +513,8 @@ static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
         &i2c_gpio_device,
 #endif
+
+        &bfin_gpios_device,
         &stamp_flash_device,
 };
 
diff --git a/arch/blackfin/mach-bf537/boards/generic_board.c b/arch/blackfin/mach-bf537/boards/generic_board.c
index 8a3397db1d21..c95395ba7bfa 100644
--- a/arch/blackfin/mach-bf537/boards/generic_board.c
+++ b/arch/blackfin/mach-bf537/boards/generic_board.c
@@ -371,13 +371,6 @@ static struct bfin5xx_spi_chip spi_si3xxx_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE)
-static struct bfin5xx_spi_chip ad5304_chip_info = {
-        .enable_dma = 0,
-        .bits_per_word = 16,
-};
-#endif
-
 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
 static struct bfin5xx_spi_chip spi_ad7877_chip_info = {
         .enable_dma = 0,
@@ -483,17 +476,6 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE)
-        {
-                .modalias = "ad5304_spi",
-                .max_speed_hz = 1250000,     /* max spi clock (SCK) speed in HZ */
-                .bus_num = 0,
-                .chip_select = 2,
-                .platform_data = NULL,
-                .controller_data = &ad5304_chip_info,
-                .mode = SPI_MODE_2,
-        },
-#endif
 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
         {
                 .modalias               = "ad7877",
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 9e2277e0d25c..ea83148993da 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -128,6 +128,19 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
+static struct resource bfin_gpios_resources = {
+        .start = 0,
+        .end   = MAX_BLACKFIN_GPIOS - 1,
+        .flags = IORESOURCE_IRQ,
+};
+
+static struct platform_device bfin_gpios_device = {
+        .name = "simple-gpio",
+        .id = -1,
+        .num_resources = 1,
+        .resource = &bfin_gpios_resources,
+};
+
 #if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
 static struct resource bfin_pcmcia_cf_resources[] = {
         {
@@ -343,7 +356,7 @@ static struct platform_device net2272_bfin_device = {
 static struct mtd_partition stamp_partitions[] = {
         {
                 .name       = "Bootloader",
-                .size       = 0x20000,
+                .size       = 0x40000,
                 .offset     = 0,
         }, {
                 .name       = "Kernel",
@@ -351,7 +364,7 @@ static struct mtd_partition stamp_partitions[] = {
                 .offset     = MTDPART_OFS_APPEND,
         }, {
                 .name       = "RootFS",
-                .size       = 0x400000 - 0x20000 - 0xE0000 - 0x10000,
+                .size       = 0x400000 - 0x40000 - 0xE0000 - 0x10000,
                 .offset     = MTDPART_OFS_APPEND,
         }, {
                 .name       = "MAC Address",
@@ -391,17 +404,17 @@ static struct platform_device stamp_flash_device = {
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader",
-                .size = 0x00020000,
+                .size = 0x00040000,
                 .offset = 0,
                 .mask_flags = MTD_CAP_ROM
         }, {
                 .name = "kernel",
                 .size = 0xe0000,
-                .offset = 0x20000
+                .offset = MTDPART_OFS_APPEND,
         }, {
                 .name = "file system",
-                .size = 0x700000,
-                .offset = 0x00100000,
+                .size = MTDPART_SIZ_FULL,
+                .offset = MTDPART_OFS_APPEND,
         }
 };
 
@@ -459,13 +472,6 @@ static struct bfin5xx_spi_chip spi_si3xxx_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE)
-static struct bfin5xx_spi_chip ad5304_chip_info = {
-        .enable_dma = 0,
-        .bits_per_word = 16,
-};
-#endif
-
 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
 static struct bfin5xx_spi_chip spi_ad7877_chip_info = {
         .enable_dma = 0,
@@ -578,17 +584,6 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE)
-        {
-                .modalias = "ad5304_spi",
-                .max_speed_hz = 1250000,     /* max spi clock (SCK) speed in HZ */
-                .bus_num = 0,
-                .chip_select = 2,
-                .platform_data = NULL,
-                .controller_data = &ad5304_chip_info,
-                .mode = SPI_MODE_2,
-        },
-#endif
 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
         {
                 .modalias               = "ad7877",
@@ -821,6 +816,8 @@ static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
         &bfin_device_gpiokeys,
 #endif
+
+        &bfin_gpios_device,
         &stamp_flash_device,
 };
 
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index 916e963e83ba..a0950c1fd800 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -285,8 +285,8 @@ static struct mtd_partition partition_info[] = {
         },
         {
                 .name = "File System",
-                .offset = 4 * SIZE_1M,
-                .size = (256 - 4) * SIZE_1M,
+                .offset = MTDPART_OFS_APPEND,
+                .size = MTDPART_SIZ_FULL,
         },
 };
 
@@ -333,7 +333,7 @@ static struct platform_device bf54x_sdh_device = {
 static struct mtd_partition ezkit_partitions[] = {
         {
                 .name       = "Bootloader",
-                .size       = 0x20000,
+                .size       = 0x40000,
                 .offset     = 0,
         }, {
                 .name       = "Kernel",
@@ -381,8 +381,8 @@ static struct mtd_partition bfin_spi_flash_partitions[] = {
                 .mask_flags = MTD_CAP_ROM
         }, {
                 .name = "linux kernel",
-                .size = 0x1c0000,
-                .offset = 0x40000
+                .size = MTDPART_SIZ_FULL,
+                .offset = MTDPART_OFS_APPEND,
         }
 };
 
@@ -594,6 +594,19 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
+static struct resource bfin_gpios_resources = {
+        .start = 0,
+        .end   = MAX_BLACKFIN_GPIOS - 1,
+        .flags = IORESOURCE_IRQ,
+};
+
+static struct platform_device bfin_gpios_device = {
+        .name = "simple-gpio",
+        .id = -1,
+        .num_resources = 1,
+        .resource = &bfin_gpios_resources,
+};
+
 static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
         &rtc_device,
@@ -646,6 +659,8 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
         &bfin_device_gpiokeys,
 #endif
+
+        &bfin_gpios_device,
         &ezkit_flash_device,
 };
 
diff --git a/arch/blackfin/mach-bf548/dma.c b/arch/blackfin/mach-bf548/dma.c
index 374803a8d2e8..f5479298bb79 100644
--- a/arch/blackfin/mach-bf548/dma.c
+++ b/arch/blackfin/mach-bf548/dma.c
@@ -27,6 +27,8 @@
  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
+#include <linux/module.h>
+
 #include <asm/blackfin.h>
 #include <asm/dma.h>
 
diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S
index 74fe258421a5..46222a75321a 100644
--- a/arch/blackfin/mach-bf548/head.S
+++ b/arch/blackfin/mach-bf548/head.S
@@ -28,6 +28,7 @@
  */
 
 #include <linux/linkage.h>
+#include <linux/init.h>
 #include <asm/blackfin.h>
 #include <asm/trace.h>
 #if CONFIG_BFIN_KERNEL_CLOCK
@@ -44,10 +45,9 @@
 
 #define INITIAL_STACK   0xFFB01000
 
-.text
+__INIT
 
 ENTRY(__start)
-ENTRY(__stext)
         /* R0: argument of command line string, passed from uboot, save it */
         R7 = R0;
         /* Enable Cycle Counter and Nesting Of Interrupts */
@@ -213,6 +213,7 @@ ENTRY(__stext)
 
 .LWAIT_HERE:
         jump .LWAIT_HERE;
+ENDPROC(__start)
 
 ENTRY(_real_start)
         [ -- sp ] = reti;
@@ -285,6 +286,9 @@ ENTRY(_real_start)
         call _start_kernel;
 .L_exit:
         jump.s  .L_exit;
+ENDPROC(_real_start)
+
+__FINIT
 
 .section .l1.text
 #if CONFIG_BFIN_KERNEL_CLOCK
@@ -450,6 +454,7 @@ ENTRY(_start_dma_code)
         SSYNC;
 
         RTS;
+ENDPROC(_start_dma_code)
 #endif /* CONFIG_BFIN_KERNEL_CLOCK */
 
 .data
diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c
index 43c1b0982819..d357f648d963 100644
--- a/arch/blackfin/mach-bf561/boards/ezkit.c
+++ b/arch/blackfin/mach-bf561/boards/ezkit.c
@@ -223,7 +223,7 @@ static struct platform_device bfin_uart_device = {
 static struct mtd_partition ezkit_partitions[] = {
         {
                 .name       = "Bootloader",
-                .size       = 0x20000,
+                .size       = 0x40000,
                 .offset     = 0,
         }, {
                 .name       = "Kernel",
@@ -389,6 +389,19 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
+static struct resource bfin_gpios_resources = {
+        .start = 0,
+        .end   = MAX_BLACKFIN_GPIOS - 1,
+        .flags = IORESOURCE_IRQ,
+};
+
+static struct platform_device bfin_gpios_device = {
+        .name = "simple-gpio",
+        .id = -1,
+        .num_resources = 1,
+        .resource = &bfin_gpios_resources,
+};
+
 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 #include <linux/i2c-gpio.h>
 
@@ -446,6 +459,7 @@ static struct platform_device *ezkit_devices[] __initdata = {
         &isp1362_hcd_device,
 #endif
 
+        &bfin_gpios_device,
         &ezkit_flash_device,
 };
 
diff --git a/arch/blackfin/mach-common/dpmc.S b/arch/blackfin/mach-common/dpmc.S
index b80ddd8b232d..9d45aa3265b1 100644
--- a/arch/blackfin/mach-common/dpmc.S
+++ b/arch/blackfin/mach-common/dpmc.S
@@ -31,140 +31,6 @@
 #include <asm/blackfin.h>
 #include <asm/mach/irq.h>
 
-.text
-
-ENTRY(_unmask_wdog_wakeup_evt)
-        [--SP] = ( R7:0, P5:0 );
-#if defined(CONFIG_BF561)
-        P0.H = hi(SICA_IWR1);
-        P0.L = lo(SICA_IWR1);
-#elif defined(CONFIG_BF54x) || defined(CONFIG_BF52x)
-        P0.h = HI(SIC_IWR0);
-        P0.l = LO(SIC_IWR0);
-#else
-        P0.h = HI(SIC_IWR);
-        P0.l = LO(SIC_IWR);
-#endif
-        R7 = [P0];
-#if defined(CONFIG_BF561)
-        BITSET(R7, 27);
-#else
-        BITSET(R7,(IRQ_WATCH - IVG7));
-#endif
-        [P0] = R7;
-        SSYNC;
-
-        ( R7:0, P5:0 ) = [SP++];
-        RTS;
-
-.LWRITE_TO_STAT:
-        /* When watch dog timer is enabled, a write to STAT will load the
-         * contents of CNT to STAT
-         */
-        R7 = 0x0000(z);
-#if defined(CONFIG_BF561)
-        P0.h = HI(WDOGA_STAT);
-        P0.l = LO(WDOGA_STAT);
-#else
-        P0.h = HI(WDOG_STAT);
-        P0.l = LO(WDOG_STAT);
-#endif
-        [P0] = R7;
-        SSYNC;
-        JUMP .LSKIP_WRITE_TO_STAT;
-
-ENTRY(_program_wdog_timer)
-        [--SP] = ( R7:0, P5:0 );
-#if defined(CONFIG_BF561)
-        P0.h = HI(WDOGA_CNT);
-        P0.l = LO(WDOGA_CNT);
-#else
-        P0.h = HI(WDOG_CNT);
-        P0.l = LO(WDOG_CNT);
-#endif
-        [P0] = R0;
-        SSYNC;
-
-#if defined(CONFIG_BF561)
-        P0.h = HI(WDOGA_CTL);
-        P0.l = LO(WDOGA_CTL);
-#else
-        P0.h = HI(WDOG_CTL);
-        P0.l = LO(WDOG_CTL);
-#endif
-        R7 = W[P0](Z);
-        CC = BITTST(R7,1);
-        if !CC JUMP .LWRITE_TO_STAT;
-        CC = BITTST(R7,2);
-        if !CC JUMP .LWRITE_TO_STAT;
-
-.LSKIP_WRITE_TO_STAT:
-#if defined(CONFIG_BF561)
-        P0.h = HI(WDOGA_CTL);
-        P0.l = LO(WDOGA_CTL);
-#else
-        P0.h = HI(WDOG_CTL);
-        P0.l = LO(WDOG_CTL);
-#endif
-        R7 = W[P0](Z);
-        BITCLR(R7,1);   /* Enable GP event */
-        BITSET(R7,2);
-        W[P0] = R7.L;
-        SSYNC;
-        NOP;
-
-        R7 = W[P0](Z);
-        BITCLR(R7,4);   /* Enable the wdog counter */
-        W[P0] = R7.L;
-        SSYNC;
-
-        ( R7:0, P5:0 ) = [SP++];
-        RTS;
-
-ENTRY(_clear_wdog_wakeup_evt)
-        [--SP] = ( R7:0, P5:0 );
-
-#if defined(CONFIG_BF561)
-        P0.h = HI(WDOGA_CTL);
-        P0.l = LO(WDOGA_CTL);
-#else
-        P0.h = HI(WDOG_CTL);
-        P0.l = LO(WDOG_CTL);
-#endif
-        R7 = 0x0AD6(Z);
-        W[P0] = R7.L;
-        SSYNC;
-
-        R7 = W[P0](Z);
-        BITSET(R7,15);
-        W[P0] = R7.L;
-        SSYNC;
-
-        R7 = W[P0](Z);
-        BITSET(R7,1);
-        BITSET(R7,2);
-        W[P0] = R7.L;
-        SSYNC;
-
-        ( R7:0, P5:0 ) = [SP++];
-        RTS;
-
-ENTRY(_disable_wdog_timer)
-        [--SP] = ( R7:0, P5:0 );
-#if defined(CONFIG_BF561)
-        P0.h = HI(WDOGA_CTL);
-        P0.l = LO(WDOGA_CTL);
-#else
-        P0.h = HI(WDOG_CTL);
-        P0.l = LO(WDOG_CTL);
-#endif
-        R7 = 0xAD6(Z);
-        W[P0] = R7.L;
-        SSYNC;
-        ( R7:0, P5:0 ) = [SP++];
-        RTS;
-
-#if !defined(CONFIG_BF561)
 
 .section .l1.text
 
@@ -459,10 +325,12 @@ ENTRY(_set_sic_iwr)
         RTS;
 
 ENTRY(_set_rtc_istat)
+#ifndef CONFIG_BF561
         P0.H = hi(RTC_ISTAT);
         P0.L = lo(RTC_ISTAT);
         w[P0] = R0.L;
         SSYNC;
+#endif
         RTS;
 
 ENTRY(_test_pll_locked)
@@ -473,4 +341,3 @@ ENTRY(_test_pll_locked)
         CC = BITTST(R0,5);
         IF !CC JUMP 1b;
         RTS;
-#endif
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index 880595afe98d..225ef14af75e 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -74,7 +74,7 @@ unsigned long bfin_sic_iwr[3];	/* Up to 3 SIC_IWRx registers */
 #endif
 
 struct ivgx {
-        /* irq number for request_irq, available in mach-bf533/irq.h */
+        /* irq number for request_irq, available in mach-bf5xx/irq.h */
         unsigned int irqno;
         /* corresponding bit in the SIC_ISR register */
         unsigned int isrflag;
@@ -86,7 +86,6 @@ struct ivg_slice {
         struct ivgx *istop;
 } ivg7_13[IVG13 - IVG7 + 1];
 
-static void search_IAR(void);
 
 /*
  * Search SIC_IAR and fill tables with the irqvalues
@@ -120,10 +119,10 @@ static void __init search_IAR(void)
 }
 
 /*
- * This is for BF533 internal IRQs
+ * This is for core internal IRQs
  */
 
-static void ack_noop(unsigned int irq)
+static void bfin_ack_noop(unsigned int irq)
 {
         /* Dummy function.  */
 }
@@ -156,11 +155,11 @@ static void bfin_internal_mask_irq(unsigned int irq)
 {
 #ifdef CONFIG_BF53x
         bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() &
-                             ~(1 << (irq - (IRQ_CORETMR + 1))));
+                             ~(1 << SIC_SYSIRQ(irq)));
 #else
         unsigned mask_bank, mask_bit;
-        mask_bank = (irq - (IRQ_CORETMR + 1)) / 32;
-        mask_bit = (irq - (IRQ_CORETMR + 1)) % 32;
+        mask_bank = SIC_SYSIRQ(irq) / 32;
+        mask_bit = SIC_SYSIRQ(irq) % 32;
         bfin_write_SIC_IMASK(mask_bank, bfin_read_SIC_IMASK(mask_bank) &
                              ~(1 << mask_bit));
 #endif
@@ -171,11 +170,11 @@ static void bfin_internal_unmask_irq(unsigned int irq)
 {
 #ifdef CONFIG_BF53x
         bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() |
-                             (1 << (irq - (IRQ_CORETMR + 1))));
+                             (1 << SIC_SYSIRQ(irq)));
 #else
         unsigned mask_bank, mask_bit;
-        mask_bank = (irq - (IRQ_CORETMR + 1)) / 32;
-        mask_bit = (irq - (IRQ_CORETMR + 1)) % 32;
+        mask_bank = SIC_SYSIRQ(irq) / 32;
+        mask_bit = SIC_SYSIRQ(irq) % 32;
         bfin_write_SIC_IMASK(mask_bank, bfin_read_SIC_IMASK(mask_bank) |
                              (1 << mask_bit));
 #endif
@@ -187,8 +186,8 @@ int bfin_internal_set_wake(unsigned int irq, unsigned int state)
 {
         unsigned bank, bit;
         unsigned long flags;
-        bank = (irq - (IRQ_CORETMR + 1)) / 32;
-        bit = (irq - (IRQ_CORETMR + 1)) % 32;
+        bank = SIC_SYSIRQ(irq) / 32;
+        bit = SIC_SYSIRQ(irq) % 32;
 
         local_irq_save(flags);
 
@@ -204,15 +203,18 @@ int bfin_internal_set_wake(unsigned int irq, unsigned int state)
 #endif
 
 static struct irq_chip bfin_core_irqchip = {
-        .ack = ack_noop,
+        .ack = bfin_ack_noop,
         .mask = bfin_core_mask_irq,
         .unmask = bfin_core_unmask_irq,
 };
 
 static struct irq_chip bfin_internal_irqchip = {
-        .ack = ack_noop,
+        .ack = bfin_ack_noop,
         .mask = bfin_internal_mask_irq,
         .unmask = bfin_internal_unmask_irq,
+        .mask_ack = bfin_internal_mask_irq,
+        .disable = bfin_internal_mask_irq,
+        .enable = bfin_internal_unmask_irq,
 #ifdef CONFIG_PM
         .set_wake = bfin_internal_set_wake,
 #endif
@@ -221,38 +223,23 @@ static struct irq_chip bfin_internal_irqchip = {
 #ifdef BF537_GENERIC_ERROR_INT_DEMUX
 static int error_int_mask;
 
-static void bfin_generic_error_ack_irq(unsigned int irq)
-{
-
-}
-
 static void bfin_generic_error_mask_irq(unsigned int irq)
 {
         error_int_mask &= ~(1L << (irq - IRQ_PPI_ERROR));
 
-        if (!error_int_mask) {
-                local_irq_disable();
-                bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() &
-                                     ~(1 << (IRQ_GENERIC_ERROR -
-                                        (IRQ_CORETMR + 1))));
-                SSYNC();
-                local_irq_enable();
-        }
+        if (!error_int_mask)
+                bfin_internal_mask_irq(IRQ_GENERIC_ERROR);
 }
 
 static void bfin_generic_error_unmask_irq(unsigned int irq)
 {
-        local_irq_disable();
-        bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() | 1 <<
-                             (IRQ_GENERIC_ERROR - (IRQ_CORETMR + 1)));
-        SSYNC();
-        local_irq_enable();
-
+        bfin_internal_unmask_irq(IRQ_GENERIC_ERROR);
         error_int_mask |= 1L << (irq - IRQ_PPI_ERROR);
 }
 
 static struct irq_chip bfin_generic_error_irqchip = {
-        .ack = bfin_generic_error_ack_irq,
+        .ack = bfin_ack_noop,
+        .mask_ack = bfin_generic_error_mask_irq,
         .mask = bfin_generic_error_mask_irq,
         .unmask = bfin_generic_error_unmask_irq,
 };
@@ -608,7 +595,7 @@ static struct pin_int_t *pint[NR_PINT_SYS_IRQS] = {
         (struct pin_int_t *)PINT3_MASK_SET,
 };
 
-unsigned short get_irq_base(u8 bank, u8 bmap)
+inline unsigned short get_irq_base(u8 bank, u8 bmap)
 {
 
         u16 irq_base;
@@ -969,17 +956,12 @@ int __init init_arch_irq(void)
 #if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) || defined(CONFIG_BF561)
         bfin_write_SIC_IMASK0(SIC_UNMASK_ALL);
         bfin_write_SIC_IMASK1(SIC_UNMASK_ALL);
-        bfin_write_SIC_IWR0(IWR_ENABLE_ALL);
-        bfin_write_SIC_IWR1(IWR_ENABLE_ALL);
 # ifdef CONFIG_BF54x
         bfin_write_SIC_IMASK2(SIC_UNMASK_ALL);
-        bfin_write_SIC_IWR2(IWR_ENABLE_ALL);
 # endif
 #else
         bfin_write_SIC_IMASK(SIC_UNMASK_ALL);
-        bfin_write_SIC_IWR(IWR_ENABLE_ALL);
 #endif
-        SSYNC();
 
         local_irq_disable();
 
@@ -1001,90 +983,53 @@ int __init init_arch_irq(void)
                         set_irq_chip(irq, &bfin_core_irqchip);
                 else
                         set_irq_chip(irq, &bfin_internal_irqchip);
-#ifdef BF537_GENERIC_ERROR_INT_DEMUX
-                if (irq != IRQ_GENERIC_ERROR) {
-#endif
 
-                        switch (irq) {
+                switch (irq) {
 #if defined(CONFIG_BF53x)
-                        case IRQ_PROG_INTA:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
+                case IRQ_PROG_INTA:
 # if defined(BF537_FAMILY) && !(defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE))
-                        case IRQ_MAC_RX:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
+                case IRQ_MAC_RX:
 # endif
 #elif defined(CONFIG_BF54x)
-                        case IRQ_PINT0:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
-                        case IRQ_PINT1:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
-                        case IRQ_PINT2:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
-                        case IRQ_PINT3:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
+                case IRQ_PINT0:
+                case IRQ_PINT1:
+                case IRQ_PINT2:
+                case IRQ_PINT3:
 #elif defined(CONFIG_BF52x)
-                        case IRQ_PORTF_INTA:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
-                        case IRQ_PORTG_INTA:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
-                        case IRQ_PORTH_INTA:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
+                case IRQ_PORTF_INTA:
+                case IRQ_PORTG_INTA:
+                case IRQ_PORTH_INTA:
 #elif defined(CONFIG_BF561)
-                        case IRQ_PROG0_INTA:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
-                        case IRQ_PROG1_INTA:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
-                        case IRQ_PROG2_INTA:
-                                set_irq_chained_handler(irq,
-                                                        bfin_demux_gpio_irq);
-                                break;
+                case IRQ_PROG0_INTA:
+                case IRQ_PROG1_INTA:
+                case IRQ_PROG2_INTA:
 #endif
-                        default:
-                                set_irq_handler(irq, handle_simple_irq);
-                                break;
-                        }
-
+                        set_irq_chained_handler(irq,
+                                                bfin_demux_gpio_irq);
+                        break;
 #ifdef BF537_GENERIC_ERROR_INT_DEMUX
-                } else {
+                case IRQ_GENERIC_ERROR:
                         set_irq_handler(irq, bfin_demux_error_irq);
-                }
+
+                        break;
 #endif
+                default:
+                        set_irq_handler(irq, handle_simple_irq);
+                        break;
+                }
         }
+
 #ifdef BF537_GENERIC_ERROR_INT_DEMUX
-        for (irq = IRQ_PPI_ERROR; irq <= IRQ_UART1_ERROR; irq++) {
-                set_irq_chip(irq, &bfin_generic_error_irqchip);
-                set_irq_handler(irq, handle_level_irq);
-        }
+        for (irq = IRQ_PPI_ERROR; irq <= IRQ_UART1_ERROR; irq++)
+                set_irq_chip_and_handler(irq, &bfin_generic_error_irqchip,
+                                         handle_level_irq);
 #endif
 
-        for (irq = GPIO_IRQ_BASE; irq < NR_IRQS; irq++) {
+        /* if configured as edge, then will be changed to do_edge_IRQ */
+        for (irq = GPIO_IRQ_BASE; irq < NR_IRQS; irq++)
+                set_irq_chip_and_handler(irq, &bfin_gpio_irqchip,
+                                         handle_level_irq);
 
-                set_irq_chip(irq, &bfin_gpio_irqchip);
-                /* if configured as edge, then will be changed to do_edge_IRQ */
-                set_irq_handler(irq, handle_level_irq);
-        }
 
         bfin_write_IMASK(0);
         CSYNC();
@@ -1106,6 +1051,16 @@ int __init init_arch_irq(void)
             IMASK_IVG14 | IMASK_IVG13 | IMASK_IVG12 | IMASK_IVG11 |
             IMASK_IVG10 | IMASK_IVG9 | IMASK_IVG8 | IMASK_IVG7 | IMASK_IVGHW;
 
+#if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) || defined(CONFIG_BF561)
+        bfin_write_SIC_IWR0(IWR_ENABLE_ALL);
+        bfin_write_SIC_IWR1(IWR_ENABLE_ALL);
+# ifdef CONFIG_BF54x
+        bfin_write_SIC_IWR2(IWR_ENABLE_ALL);
+# endif
+#else
+        bfin_write_SIC_IWR(IWR_ENABLE_ALL);
+#endif
+
         return 0;
 }
 
@@ -1122,7 +1077,6 @@ void do_irq(int vec, struct pt_regs *fp)
 #if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) || defined(CONFIG_BF561)
                 unsigned long sic_status[3];
 
-                SSYNC();
                 sic_status[0] = bfin_read_SIC_ISR0() & bfin_read_SIC_IMASK0();
                 sic_status[1] = bfin_read_SIC_ISR1() & bfin_read_SIC_IMASK1();
 #ifdef CONFIG_BF54x
@@ -1138,7 +1092,7 @@ void do_irq(int vec, struct pt_regs *fp)
                 }
 #else
                 unsigned long sic_status;
-                SSYNC();
+
                 sic_status = bfin_read_SIC_IMASK() & bfin_read_SIC_ISR();
 
                 for (;; ivg++) {
diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c
index 1f516c55bde6..ec3141fefd20 100644
--- a/arch/blackfin/mm/init.c
+++ b/arch/blackfin/mm/init.c
@@ -181,7 +181,7 @@ void __init mem_init(void)
         }
 }
 
-static __init void free_init_pages(const char *what, unsigned long begin, unsigned long end)
+static void __init free_init_pages(const char *what, unsigned long begin, unsigned long end)
 {
         unsigned long addr;
         /* next to check that the page we free is not a partial page */
@@ -203,7 +203,7 @@ void __init free_initrd_mem(unsigned long start, unsigned long end)
 }
 #endif
 
-void __init free_initmem(void)
+void __init_refok free_initmem(void)
 {
 #if defined CONFIG_RAMKERNEL && !defined CONFIG_MPU
         free_init_pages("unused kernel memory",
diff --git a/arch/cris/arch-v10/kernel/time.c b/arch/cris/arch-v10/kernel/time.c
index 9310a7b476e9..525483f0ddf8 100644
--- a/arch/cris/arch-v10/kernel/time.c
+++ b/arch/cris/arch-v10/kernel/time.c
@@ -13,7 +13,7 @@
 #include <linux/swap.h>
 #include <linux/sched.h>
 #include <linux/init.h>
-#include <linux/vmstat.h>
+#include <linux/mm.h>
 #include <asm/arch/svinto.h>
 #include <asm/types.h>
 #include <asm/signal.h>
diff --git a/arch/cris/arch-v10/lib/string.c b/arch/cris/arch-v10/lib/string.c
index 7161a2bef4fe..c7bd6ebdc93c 100644
--- a/arch/cris/arch-v10/lib/string.c
+++ b/arch/cris/arch-v10/lib/string.c
@@ -1,55 +1,59 @@
-/*#************************************************************************#*/
-/*#-------------------------------------------------------------------------*/
-/*#                                                                         */
-/*# FUNCTION NAME: memcpy()                                                 */
-/*#                                                                         */
-/*# PARAMETERS:  void* dst;   Destination address.                          */
-/*#              void* src;   Source address.                               */
-/*#              int   len;   Number of bytes to copy.                      */
-/*#                                                                         */
-/*# RETURNS:     dst.                                                       */
-/*#                                                                         */
-/*# DESCRIPTION: Copies len bytes of memory from src to dst.  No guarantees */
-/*#              about copying of overlapping memory areas. This routine is */
-/*#              very sensitive to compiler changes in register allocation. */
-/*#              Should really be rewritten to avoid this problem.          */
-/*#                                                                         */
-/*#-------------------------------------------------------------------------*/
-/*#                                                                         */
-/*# HISTORY                                                                 */
-/*#                                                                         */
-/*# DATE      NAME            CHANGES                                       */
-/*# ----      ----            -------                                       */
-/*# 941007    Kenny R         Creation                                      */
-/*# 941011    Kenny R         Lots of optimizations and inlining.           */
-/*# 941129    Ulf A           Adapted for use in libc.                      */
-/*# 950216    HP              N==0 forgotten if non-aligned src/dst.        */
-/*#                           Added some optimizations.                     */
-/*# 001025    HP              Make src and dst char *.  Align dst to        */
-/*#                           dword, not just word-if-both-src-and-dst-     */
-/*#                           are-misaligned.                               */
-/*#                                                                         */
-/*#-------------------------------------------------------------------------*/
-
-#include <linux/types.h>
-
-void *memcpy(void *pdst,
-             const void *psrc,
-             size_t pn)
+/* A memcpy for CRIS.
+   Copyright (C) 1994-2005 Axis Communications.
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   1. Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+   2. Neither the name of Axis Communications nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY AXIS COMMUNICATIONS AND ITS CONTRIBUTORS
+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL AXIS
+   COMMUNICATIONS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+   IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+   POSSIBILITY OF SUCH DAMAGE.  */
+
+/* FIXME: This file should really only be used for reference, as the
+   result is somewhat depending on gcc generating what we expect rather
+   than what we describe.  An assembly file should be used instead.  */
+
+#include <stddef.h>
+
+/* Break even between movem and move16 is really at 38.7 * 2, but
+   modulo 44, so up to the next multiple of 44, we use ordinary code.  */
+#define MEMCPY_BY_BLOCK_THRESHOLD (44 * 2)
+
+/* No name ambiguities in this file.  */
+__asm__ (".syntax no_register_prefix");
+
+void *
+memcpy(void *pdst, const void *psrc, size_t pn)
 {
-  /* Ok.  Now we want the parameters put in special registers.
+  /* Now we want the parameters put in special registers.
      Make sure the compiler is able to make something useful of this.
-      As it is now: r10 -> r13; r11 -> r11 (nop); r12 -> r12 (nop).
+     As it is now: r10 -> r13; r11 -> r11 (nop); r12 -> r12 (nop).
 
-     If gcc was alright, it really would need no temporaries, and no
-     stack space to save stuff on. */
+     If gcc was allright, it really would need no temporaries, and no
+     stack space to save stuff on.  */
 
   register void *return_dst __asm__ ("r10") = pdst;
-  register char *dst __asm__ ("r13") = pdst;
-  register const char *src __asm__ ("r11") = psrc;
+  register unsigned char *dst __asm__ ("r13") = pdst;
+  register unsigned const char *src __asm__ ("r11") = psrc;
   register int n __asm__ ("r12") = pn;
-  
- 
+
   /* When src is aligned but not dst, this makes a few extra needless
      cycles.  I believe it would take as many to check that the
      re-alignment was unnecessary.  */
@@ -59,167 +63,174 @@ void *memcpy(void *pdst,
       && n >= 3)
   {
     if ((unsigned long) dst & 1)
-    {
-      n--;
-      *(char*)dst = *(char*)src;
-      src++;
-      dst++;
-    }
+      {
+        n--;
+        *dst = *src;
+        src++;
+        dst++;
+      }
 
     if ((unsigned long) dst & 2)
-    {
-      n -= 2;
-      *(short*)dst = *(short*)src;
-      src += 2;
-      dst += 2;
-    }
+      {
+        n -= 2;
+        *(short *) dst = *(short *) src;
+        src += 2;
+        dst += 2;
+      }
   }
 
-  /* Decide which copying method to use. */
-  if (n >= 44*2)                /* Break even between movem and
-                                   move16 is at 38.7*2, but modulo 44. */
-  {
-    /* For large copies we use 'movem' */
-
-  /* It is not optimal to tell the compiler about clobbering any
-     registers; that will move the saving/restoring of those registers
-     to the function prologue/epilogue, and make non-movem sizes
-     suboptimal.
-
-      This method is not foolproof; it assumes that the "asm reg"
-     declarations at the beginning of the function really are used
-     here (beware: they may be moved to temporary registers).
-      This way, we do not have to save/move the registers around into
-     temporaries; we can safely use them straight away.
-
-      If you want to check that the allocation was right; then
-      check the equalities in the first comment.  It should say
-      "r13=r13, r11=r11, r12=r12" */
-    __asm__ volatile ("\n\
-        ;; Check that the following is true (same register names on     \n\
-        ;; both sides of equal sign, as in r8=r8):                      \n\
-        ;; %0=r13, %1=r11, %2=r12                                       \n\
-        ;;                                                              \n\
-        ;; Save the registers we'll use in the movem process            \n\
-        ;; on the stack.                                                \n\
-        subq    11*4,$sp                                                \n\
-        movem   $r10,[$sp]                                              \n\
+  /* Decide which copying method to use.  */
+  if (n >= MEMCPY_BY_BLOCK_THRESHOLD)
+    {
+      /* It is not optimal to tell the compiler about clobbering any
+         registers; that will move the saving/restoring of those registers
+         to the function prologue/epilogue, and make non-movem sizes
+         suboptimal.  */
+      __asm__ volatile
+        ("\
+         ;; GCC does promise correct register allocations, but let's    \n\
+         ;; make sure it keeps its promises.                            \n\
+         .ifnc %0-%1-%2,$r13-$r11-$r12                                  \n\
+         .error \"GCC reg alloc bug: %0-%1-%4 != $r13-$r12-$r11\"       \n\
+         .endif                                                         \n\
+                                                                        \n\
+         ;; Save the registers we'll use in the movem process           \n\
+         ;; on the stack.                                               \n\
+         subq   11*4,sp                                                 \n\
+         movem  r10,[sp]                                                \n\
                                                                         \n\
-        ;; Now we've got this:                                          \n\
-        ;; r11 - src                                                    \n\
-        ;; r13 - dst                                                    \n\
-        ;; r12 - n                                                      \n\
+         ;; Now we've got this:                                         \n\
+         ;; r11 - src                                                   \n\
+         ;; r13 - dst                                                   \n\
+         ;; r12 - n                                                     \n\
                                                                         \n\
-        ;; Update n for the first loop                                  \n\
-        subq    44,$r12                                                 \n\
+         ;; Update n for the first loop.                                \n\
+         subq    44,r12                                                 \n\
 0:                                                                      \n\
-        movem   [$r11+],$r10                                            \n\
-        subq    44,$r12                                                 \n\
-        bge     0b                                                      \n\
-        movem   $r10,[$r13+]                                            \n\
+"
+#ifdef __arch_common_v10_v32
+         /* Cater to branch offset difference between v32 and v10.  We
+            assume the branch below has an 8-bit offset.  */
+"        setf\n"
+#endif
+"        movem  [r11+],r10                                              \n\
+         subq   44,r12                                                  \n\
+         bge     0b                                                     \n\
+         movem  r10,[r13+]                                              \n\
                                                                         \n\
-        addq    44,$r12 ;; compensate for last loop underflowing n      \n\
+         ;; Compensate for last loop underflowing n.                    \n\
+         addq   44,r12                                                  \n\
                                                                         \n\
-        ;; Restore registers from stack                                 \n\
-        movem   [$sp+],$r10"
+         ;; Restore registers from stack.                               \n\
+         movem [sp+],r10"
 
-     /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n) 
-     /* Inputs */ : "0" (dst), "1" (src), "2" (n));
-    
-  }
+         /* Outputs.  */
+         : "=r" (dst), "=r" (src), "=r" (n)
 
-  /* Either we directly starts copying, using dword copying
-     in a loop, or we copy as much as possible with 'movem' 
-     and then the last block (<44 bytes) is copied here.
-     This will work since 'movem' will have updated src,dst,n. */
+         /* Inputs.  */
+         : "0" (dst), "1" (src), "2" (n));
+    }
 
-  while ( n >= 16 )
-  {
-    *((long*)dst)++ = *((long*)src)++;
-    *((long*)dst)++ = *((long*)src)++;
-    *((long*)dst)++ = *((long*)src)++;
-    *((long*)dst)++ = *((long*)src)++;
-    n -= 16;
-  }
+  while (n >= 16)
+    {
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+
+      n -= 16;
+    }
 
-  /* A switch() is definitely the fastest although it takes a LOT of code.
-   * Particularly if you inline code this.
-   */
   switch (n)
-  {
+    {
     case 0:
       break;
+
     case 1:
-      *(char*)dst = *(char*)src;
+      *dst = *src;
       break;
+
     case 2:
-      *(short*)dst = *(short*)src;
+      *(short *) dst = *(short *) src;
       break;
+
     case 3:
-      *((short*)dst)++ = *((short*)src)++;
-      *(char*)dst = *(char*)src;
+      *(short *) dst = *(short *) src; dst += 2; src += 2;
+      *dst = *src;
       break;
+
     case 4:
-      *((long*)dst)++ = *((long*)src)++;
+      *(long *) dst = *(long *) src;
       break;
+
     case 5:
-      *((long*)dst)++ = *((long*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *dst = *src;
       break;
+
     case 6:
-      *((long*)dst)++ = *((long*)src)++;
-      *(short*)dst = *(short*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src;
       break;
+
     case 7:
-      *((long*)dst)++ = *((long*)src)++;
-      *((short*)dst)++ = *((short*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src; dst += 2; src += 2;
+      *dst = *src;
       break;
+
     case 8:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src;
       break;
+
     case 9:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *dst = *src;
       break;
+
     case 10:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *(short*)dst = *(short*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src;
       break;
+
     case 11:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((short*)dst)++ = *((short*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src; dst += 2; src += 2;
+      *dst = *src;
       break;
+
     case 12:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src;
       break;
+
     case 13:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *dst = *src;
       break;
+
     case 14:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *(short*)dst = *(short*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src;
       break;
+
     case 15:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((short*)dst)++ = *((short*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src; dst += 2; src += 2;
+      *dst = *src;
       break;
-  }
+    }
 
-  return return_dst; /* destination pointer. */
-} /* memcpy() */
+  return return_dst;
+}
diff --git a/arch/cris/arch-v10/lib/usercopy.c b/arch/cris/arch-v10/lib/usercopy.c
index b8e6c0430e5b..b0a608da7bd1 100644
--- a/arch/cris/arch-v10/lib/usercopy.c
+++ b/arch/cris/arch-v10/lib/usercopy.c
@@ -193,7 +193,7 @@ __copy_user (void __user *pdst, const void *psrc, unsigned long pn)
    inaccessible.  */
 
 unsigned long
-__copy_user_zeroing (void __user *pdst, const void *psrc, unsigned long pn)
+__copy_user_zeroing(void *pdst, const void __user *psrc, unsigned long pn)
 {
   /* We want the parameters put in special registers.
      Make sure the compiler is able to make something useful of this.
diff --git a/arch/cris/arch-v32/lib/string.c b/arch/cris/arch-v32/lib/string.c
index 6740b2cebae5..c7bd6ebdc93c 100644
--- a/arch/cris/arch-v32/lib/string.c
+++ b/arch/cris/arch-v32/lib/string.c
@@ -1,55 +1,59 @@
-/*#************************************************************************#*/
-/*#-------------------------------------------------------------------------*/
-/*#                                                                         */
-/*# FUNCTION NAME: memcpy()                                                 */
-/*#                                                                         */
-/*# PARAMETERS:  void* dst;   Destination address.                          */
-/*#              void* src;   Source address.                               */
-/*#              int   len;   Number of bytes to copy.                      */
-/*#                                                                         */
-/*# RETURNS:     dst.                                                       */
-/*#                                                                         */
-/*# DESCRIPTION: Copies len bytes of memory from src to dst.  No guarantees */
-/*#              about copying of overlapping memory areas. This routine is */
-/*#              very sensitive to compiler changes in register allocation. */
-/*#              Should really be rewritten to avoid this problem.          */
-/*#                                                                         */
-/*#-------------------------------------------------------------------------*/
-/*#                                                                         */
-/*# HISTORY                                                                 */
-/*#                                                                         */
-/*# DATE      NAME            CHANGES                                       */
-/*# ----      ----            -------                                       */
-/*# 941007    Kenny R         Creation                                      */
-/*# 941011    Kenny R         Lots of optimizations and inlining.           */
-/*# 941129    Ulf A           Adapted for use in libc.                      */
-/*# 950216    HP              N==0 forgotten if non-aligned src/dst.        */
-/*#                           Added some optimizations.                     */
-/*# 001025    HP              Make src and dst char *.  Align dst to        */
-/*#                           dword, not just word-if-both-src-and-dst-     */
-/*#                           are-misaligned.                               */
-/*#                                                                         */
-/*#-------------------------------------------------------------------------*/
-
-#include <linux/types.h>
-
-void *memcpy(void *pdst,
-             const void *psrc,
-             size_t pn)
+/* A memcpy for CRIS.
+   Copyright (C) 1994-2005 Axis Communications.
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   1. Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+   2. Neither the name of Axis Communications nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY AXIS COMMUNICATIONS AND ITS CONTRIBUTORS
+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL AXIS
+   COMMUNICATIONS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+   IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+   POSSIBILITY OF SUCH DAMAGE.  */
+
+/* FIXME: This file should really only be used for reference, as the
+   result is somewhat depending on gcc generating what we expect rather
+   than what we describe.  An assembly file should be used instead.  */
+
+#include <stddef.h>
+
+/* Break even between movem and move16 is really at 38.7 * 2, but
+   modulo 44, so up to the next multiple of 44, we use ordinary code.  */
+#define MEMCPY_BY_BLOCK_THRESHOLD (44 * 2)
+
+/* No name ambiguities in this file.  */
+__asm__ (".syntax no_register_prefix");
+
+void *
+memcpy(void *pdst, const void *psrc, size_t pn)
 {
-  /* Ok.  Now we want the parameters put in special registers.
+  /* Now we want the parameters put in special registers.
      Make sure the compiler is able to make something useful of this.
-      As it is now: r10 -> r13; r11 -> r11 (nop); r12 -> r12 (nop).
+     As it is now: r10 -> r13; r11 -> r11 (nop); r12 -> r12 (nop).
 
-     If gcc was alright, it really would need no temporaries, and no
-     stack space to save stuff on. */
+     If gcc was allright, it really would need no temporaries, and no
+     stack space to save stuff on.  */
 
   register void *return_dst __asm__ ("r10") = pdst;
-  register char *dst __asm__ ("r13") = pdst;
-  register const char *src __asm__ ("r11") = psrc;
+  register unsigned char *dst __asm__ ("r13") = pdst;
+  register unsigned const char *src __asm__ ("r11") = psrc;
   register int n __asm__ ("r12") = pn;
 
-
   /* When src is aligned but not dst, this makes a few extra needless
      cycles.  I believe it would take as many to check that the
      re-alignment was unnecessary.  */
@@ -59,161 +63,174 @@ void *memcpy(void *pdst,
       && n >= 3)
   {
     if ((unsigned long) dst & 1)
-    {
-      n--;
-      *(char*)dst = *(char*)src;
-      src++;
-      dst++;
-    }
+      {
+        n--;
+        *dst = *src;
+        src++;
+        dst++;
+      }
 
     if ((unsigned long) dst & 2)
-    {
-      n -= 2;
-      *(short*)dst = *(short*)src;
-      src += 2;
-      dst += 2;
-    }
+      {
+        n -= 2;
+        *(short *) dst = *(short *) src;
+        src += 2;
+        dst += 2;
+      }
   }
 
-  /* Decide which copying method to use.  Movem is dirt cheap, so the
-     overheap is low enough to always use the minimum block size as the
-     threshold.  */
-  if (n >= 44)
-  {
-    /* For large copies we use 'movem' */
-
-  /* It is not optimal to tell the compiler about clobbering any
-     registers; that will move the saving/restoring of those registers
-     to the function prologue/epilogue, and make non-movem sizes
-     suboptimal.  */
-    __asm__ volatile ("                                                 \n\
-        ;; Check that the register asm declaration got right.           \n\
-        ;; The GCC manual explicitly says TRT will happen.              \n\
-        .ifnc %0-%1-%2,$r13-$r11-$r12                                   \n\
-        .err                                                            \n\
-        .endif                                                          \n\
-                                                                        \n\
-        ;; Save the registers we'll use in the movem process            \n\
+  /* Decide which copying method to use.  */
+  if (n >= MEMCPY_BY_BLOCK_THRESHOLD)
+    {
+      /* It is not optimal to tell the compiler about clobbering any
+         registers; that will move the saving/restoring of those registers
+         to the function prologue/epilogue, and make non-movem sizes
+         suboptimal.  */
+      __asm__ volatile
+        ("\
+         ;; GCC does promise correct register allocations, but let's    \n\
+         ;; make sure it keeps its promises.                            \n\
+         .ifnc %0-%1-%2,$r13-$r11-$r12                                  \n\
+         .error \"GCC reg alloc bug: %0-%1-%4 != $r13-$r12-$r11\"       \n\
+         .endif                                                         \n\
                                                                         \n\
-        ;; on the stack.                                                \n\
-        subq    11*4,$sp                                                \n\
-        movem   $r10,[$sp]                                              \n\
+         ;; Save the registers we'll use in the movem process           \n\
+         ;; on the stack.                                               \n\
+         subq   11*4,sp                                                 \n\
+         movem  r10,[sp]                                                \n\
                                                                         \n\
-        ;; Now we've got this:                                          \n\
-        ;; r11 - src                                                    \n\
-        ;; r13 - dst                                                    \n\
-        ;; r12 - n                                                      \n\
+         ;; Now we've got this:                                         \n\
+         ;; r11 - src                                                   \n\
+         ;; r13 - dst                                                   \n\
+         ;; r12 - n                                                     \n\
                                                                         \n\
-        ;; Update n for the first loop                                  \n\
-        subq    44,$r12                                                 \n\
+         ;; Update n for the first loop.                                \n\
+         subq    44,r12                                                 \n\
 0:                                                                      \n\
-        movem   [$r11+],$r10                                            \n\
-        subq   44,$r12                                                  \n\
-        bge     0b                                                      \n\
-        movem   $r10,[$r13+]                                            \n\
+"
+#ifdef __arch_common_v10_v32
+         /* Cater to branch offset difference between v32 and v10.  We
+            assume the branch below has an 8-bit offset.  */
+"        setf\n"
+#endif
+"        movem  [r11+],r10                                              \n\
+         subq   44,r12                                                  \n\
+         bge     0b                                                     \n\
+         movem  r10,[r13+]                                              \n\
                                                                         \n\
-        addq   44,$r12  ;; compensate for last loop underflowing n      \n\
+         ;; Compensate for last loop underflowing n.                    \n\
+         addq   44,r12                                                  \n\
                                                                         \n\
-        ;; Restore registers from stack                                 \n\
-        movem [$sp+],$r10"
+         ;; Restore registers from stack.                               \n\
+         movem [sp+],r10"
 
-     /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n)
-     /* Inputs */ : "0" (dst), "1" (src), "2" (n));
+         /* Outputs.  */
+         : "=r" (dst), "=r" (src), "=r" (n)
 
-  }
+         /* Inputs.  */
+         : "0" (dst), "1" (src), "2" (n));
+    }
 
-  /* Either we directly starts copying, using dword copying
-     in a loop, or we copy as much as possible with 'movem'
-     and then the last block (<44 bytes) is copied here.
-     This will work since 'movem' will have updated src,dst,n. */
+  while (n >= 16)
+    {
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
 
-  while ( n >= 16 )
-  {
-    *((long*)dst)++ = *((long*)src)++;
-    *((long*)dst)++ = *((long*)src)++;
-    *((long*)dst)++ = *((long*)src)++;
-    *((long*)dst)++ = *((long*)src)++;
-    n -= 16;
-  }
+      n -= 16;
+    }
 
-  /* A switch() is definitely the fastest although it takes a LOT of code.
-   * Particularly if you inline code this.
-   */
   switch (n)
-  {
+    {
     case 0:
       break;
+
     case 1:
-      *(char*)dst = *(char*)src;
+      *dst = *src;
       break;
+
     case 2:
-      *(short*)dst = *(short*)src;
+      *(short *) dst = *(short *) src;
       break;
+
     case 3:
-      *((short*)dst)++ = *((short*)src)++;
-      *(char*)dst = *(char*)src;
+      *(short *) dst = *(short *) src; dst += 2; src += 2;
+      *dst = *src;
       break;
+
     case 4:
-      *((long*)dst)++ = *((long*)src)++;
+      *(long *) dst = *(long *) src;
       break;
+
     case 5:
-      *((long*)dst)++ = *((long*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *dst = *src;
       break;
+
     case 6:
-      *((long*)dst)++ = *((long*)src)++;
-      *(short*)dst = *(short*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src;
       break;
+
     case 7:
-      *((long*)dst)++ = *((long*)src)++;
-      *((short*)dst)++ = *((short*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src; dst += 2; src += 2;
+      *dst = *src;
       break;
+
     case 8:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src;
       break;
+
     case 9:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *dst = *src;
       break;
+
     case 10:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *(short*)dst = *(short*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src;
       break;
+
     case 11:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((short*)dst)++ = *((short*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src; dst += 2; src += 2;
+      *dst = *src;
       break;
+
     case 12:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src;
       break;
+
     case 13:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *dst = *src;
       break;
+
     case 14:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *(short*)dst = *(short*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src;
       break;
+
     case 15:
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((long*)dst)++ = *((long*)src)++;
-      *((short*)dst)++ = *((short*)src)++;
-      *(char*)dst = *(char*)src;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(long *) dst = *(long *) src; dst += 4; src += 4;
+      *(short *) dst = *(short *) src; dst += 2; src += 2;
+      *dst = *src;
       break;
-  }
+    }
 
-  return return_dst; /* destination pointer. */
-} /* memcpy() */
+  return return_dst;
+}
diff --git a/arch/cris/arch-v32/lib/usercopy.c b/arch/cris/arch-v32/lib/usercopy.c
index 04d0cf35a276..0b5b70d5f58a 100644
--- a/arch/cris/arch-v32/lib/usercopy.c
+++ b/arch/cris/arch-v32/lib/usercopy.c
@@ -161,7 +161,7 @@ __copy_user (void __user *pdst, const void *psrc, unsigned long pn)
    inaccessible.  */
 
 unsigned long
-__copy_user_zeroing (void __user *pdst, const void *psrc, unsigned long pn)
+__copy_user_zeroing(void *pdst, const void __user *psrc, unsigned long pn)
 {
   /* We want the parameters put in special registers.
      Make sure the compiler is able to make something useful of this.
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index dff9edfc7465..8fa3faf5ef1b 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -18,6 +18,7 @@ config IA64
         select HAVE_IDE
         select HAVE_OPROFILE
         select HAVE_KPROBES
+        select HAVE_KRETPROBES
         default y
         help
           The Itanium Processor Family is Intel's 64-bit successor to
@@ -155,6 +156,8 @@ config IA64_HP_ZX1_SWIOTLB
 
 config IA64_SGI_SN2
         bool "SGI-SN2"
+        select NUMA
+        select ACPI_NUMA
         help
           Selecting this option will optimize the kernel for use on sn2 based
           systems, but the resulting kernel binary will not run on other
diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
index b916ccfdef84..f1645c4f7039 100644
--- a/arch/ia64/Makefile
+++ b/arch/ia64/Makefile
@@ -11,6 +11,8 @@
 # Copyright (C) 1998-2004 by David Mosberger-Tang <davidm@hpl.hp.com>
 #
 
+KBUILD_DEFCONFIG := generic_defconfig
+
 NM := $(CROSS_COMPILE)nm -B
 READELF := $(CROSS_COMPILE)readelf
 
diff --git a/arch/ia64/defconfig b/arch/ia64/configs/generic_defconfig
index 0210545e7f61..0210545e7f61 100644
--- a/arch/ia64/defconfig
+++ b/arch/ia64/configs/generic_defconfig
diff --git a/arch/ia64/ia32/ia32_signal.c b/arch/ia64/ia32/ia32_signal.c
index 85e82f32e480..256a7faeda07 100644
--- a/arch/ia64/ia32/ia32_signal.c
+++ b/arch/ia64/ia32/ia32_signal.c
@@ -766,8 +766,19 @@ get_sigframe (struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
 
         /* This is the X/Open sanctioned signal stack switching.  */
         if (ka->sa.sa_flags & SA_ONSTACK) {
-                if (!on_sig_stack(esp))
+                int onstack = sas_ss_flags(esp);
+
+                if (onstack == 0)
                         esp = current->sas_ss_sp + current->sas_ss_size;
+                else if (onstack == SS_ONSTACK) {
+                        /*
+                         * If we are on the alternate signal stack and would
+                         * overflow it, don't. Return an always-bogus address
+                         * instead so we will die with SIGSEGV.
+                         */
+                        if (!likely(on_sig_stack(esp - frame_size)))
+                                return (void __user *) -1L;
+                }
         }
         /* Legacy stack switching not supported */
 
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 398e2fd1cd25..7b3292282dea 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -345,7 +345,7 @@ iosapic_set_affinity (unsigned int irq, cpumask_t mask)
         if (cpus_empty(mask))
                 return;
 
-        if (reassign_irq_vector(irq, first_cpu(mask)))
+        if (irq_prepare_move(irq, first_cpu(mask)))
                 return;
 
         dest = cpu_physical_id(first_cpu(mask));
@@ -397,6 +397,7 @@ iosapic_end_level_irq (unsigned int irq)
         struct iosapic_rte_info *rte;
         int do_unmask_irq = 0;
 
+        irq_complete_move(irq);
         if (unlikely(irq_desc[irq].status & IRQ_MOVE_PENDING)) {
                 do_unmask_irq = 1;
                 mask_irq(irq);
@@ -450,6 +451,7 @@ iosapic_ack_edge_irq (unsigned int irq)
 {
         irq_desc_t *idesc = irq_desc + irq;
 
+        irq_complete_move(irq);
         move_native_irq(irq);
         /*
          * Once we have recorded IRQ_PENDING already, we can mask the
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 0b52f19ed046..2b8cf6e85af4 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -260,6 +260,8 @@ void __setup_vector_irq(int cpu)
 }
 
 #if defined(CONFIG_SMP) && (defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG))
+#define IA64_IRQ_MOVE_VECTOR    IA64_DEF_FIRST_DEVICE_VECTOR
+
 static enum vector_domain_type {
         VECTOR_DOMAIN_NONE,
         VECTOR_DOMAIN_PERCPU
@@ -272,6 +274,101 @@ static cpumask_t vector_allocation_domain(int cpu)
         return CPU_MASK_ALL;
 }
 
+static int __irq_prepare_move(int irq, int cpu)
+{
+        struct irq_cfg *cfg = &irq_cfg[irq];
+        int vector;
+        cpumask_t domain;
+
+        if (cfg->move_in_progress || cfg->move_cleanup_count)
+                return -EBUSY;
+        if (cfg->vector == IRQ_VECTOR_UNASSIGNED || !cpu_online(cpu))
+                return -EINVAL;
+        if (cpu_isset(cpu, cfg->domain))
+                return 0;
+        domain = vector_allocation_domain(cpu);
+        vector = find_unassigned_vector(domain);
+        if (vector < 0)
+                return -ENOSPC;
+        cfg->move_in_progress = 1;
+        cfg->old_domain = cfg->domain;
+        cfg->vector = IRQ_VECTOR_UNASSIGNED;
+        cfg->domain = CPU_MASK_NONE;
+        BUG_ON(__bind_irq_vector(irq, vector, domain));
+        return 0;
+}
+
+int irq_prepare_move(int irq, int cpu)
+{
+        unsigned long flags;
+        int ret;
+
+        spin_lock_irqsave(&vector_lock, flags);
+        ret = __irq_prepare_move(irq, cpu);
+        spin_unlock_irqrestore(&vector_lock, flags);
+        return ret;
+}
+
+void irq_complete_move(unsigned irq)
+{
+        struct irq_cfg *cfg = &irq_cfg[irq];
+        cpumask_t cleanup_mask;
+        int i;
+
+        if (likely(!cfg->move_in_progress))
+                return;
+
+        if (unlikely(cpu_isset(smp_processor_id(), cfg->old_domain)))
+                return;
+
+        cpus_and(cleanup_mask, cfg->old_domain, cpu_online_map);
+        cfg->move_cleanup_count = cpus_weight(cleanup_mask);
+        for_each_cpu_mask(i, cleanup_mask)
+                platform_send_ipi(i, IA64_IRQ_MOVE_VECTOR, IA64_IPI_DM_INT, 0);
+        cfg->move_in_progress = 0;
+}
+
+static irqreturn_t smp_irq_move_cleanup_interrupt(int irq, void *dev_id)
+{
+        int me = smp_processor_id();
+        ia64_vector vector;
+        unsigned long flags;
+
+        for (vector = IA64_FIRST_DEVICE_VECTOR;
+             vector < IA64_LAST_DEVICE_VECTOR; vector++) {
+                int irq;
+                struct irq_desc *desc;
+                struct irq_cfg *cfg;
+                irq = __get_cpu_var(vector_irq)[vector];
+                if (irq < 0)
+                        continue;
+
+                desc = irq_desc + irq;
+                cfg = irq_cfg + irq;
+                spin_lock(&desc->lock);
+                if (!cfg->move_cleanup_count)
+                        goto unlock;
+
+                if (!cpu_isset(me, cfg->old_domain))
+                        goto unlock;
+
+                spin_lock_irqsave(&vector_lock, flags);
+                __get_cpu_var(vector_irq)[vector] = -1;
+                cpu_clear(me, vector_table[vector]);
+                spin_unlock_irqrestore(&vector_lock, flags);
+                cfg->move_cleanup_count--;
+        unlock:
+                spin_unlock(&desc->lock);
+        }
+        return IRQ_HANDLED;
+}
+
+static struct irqaction irq_move_irqaction = {
+        .handler =      smp_irq_move_cleanup_interrupt,
+        .flags =        IRQF_DISABLED,
+        .name =         "irq_move"
+};
+
 static int __init parse_vector_domain(char *arg)
 {
         if (!arg)
@@ -303,36 +400,6 @@ void destroy_and_reserve_irq(unsigned int irq)
         spin_unlock_irqrestore(&vector_lock, flags);
 }
 
-static int __reassign_irq_vector(int irq, int cpu)
-{
-        struct irq_cfg *cfg = &irq_cfg[irq];
-        int vector;
-        cpumask_t domain;
-
-        if (cfg->vector == IRQ_VECTOR_UNASSIGNED || !cpu_online(cpu))
-                return -EINVAL;
-        if (cpu_isset(cpu, cfg->domain))
-                return 0;
-        domain = vector_allocation_domain(cpu);
-        vector = find_unassigned_vector(domain);
-        if (vector < 0)
-                return -ENOSPC;
-        __clear_irq_vector(irq);
-        BUG_ON(__bind_irq_vector(irq, vector, domain));
-        return 0;
-}
-
-int reassign_irq_vector(int irq, int cpu)
-{
-        unsigned long flags;
-        int ret;
-
-        spin_lock_irqsave(&vector_lock, flags);
-        ret = __reassign_irq_vector(irq, cpu);
-        spin_unlock_irqrestore(&vector_lock, flags);
-        return ret;
-}
-
 /*
  * Dynamic irq allocate and deallocation for MSI
  */
@@ -578,6 +645,13 @@ init_IRQ (void)
         register_percpu_irq(IA64_IPI_VECTOR, &ipi_irqaction);
         register_percpu_irq(IA64_IPI_RESCHEDULE, &resched_irqaction);
         register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &tlb_irqaction);
+#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG)
+        if (vector_domain_type != VECTOR_DOMAIN_NONE) {
+                BUG_ON(IA64_FIRST_DEVICE_VECTOR != IA64_IRQ_MOVE_VECTOR);
+                IA64_FIRST_DEVICE_VECTOR++;
+                register_percpu_irq(IA64_IRQ_MOVE_VECTOR, &irq_move_irqaction);
+        }
+#endif
 #endif
 #ifdef CONFIG_PERFMON
         pfm_init_percpu();
diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c
index b618487cdc85..615c3d2b6348 100644
--- a/arch/ia64/kernel/kprobes.c
+++ b/arch/ia64/kernel/kprobes.c
@@ -1001,6 +1001,11 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
         return 1;
 }
 
+/* ia64 does not need this */
+void __kprobes jprobe_return(void)
+{
+}
+
 int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 {
         struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index e86d02959794..60c6ef67ebb2 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -57,7 +57,7 @@ static void ia64_set_msi_irq_affinity(unsigned int irq, cpumask_t cpu_mask)
         if (!cpu_online(cpu))
                 return;
 
-        if (reassign_irq_vector(irq, cpu))
+        if (irq_prepare_move(irq, cpu))
                 return;
 
         read_msi_msg(irq, &msg);
@@ -119,6 +119,7 @@ void ia64_teardown_msi_irq(unsigned int irq)
 
 static void ia64_ack_msi_irq(unsigned int irq)
 {
+        irq_complete_move(irq);
         move_native_irq(irq);
         ia64_eoi();
 }
diff --git a/arch/ia64/kernel/sal.c b/arch/ia64/kernel/sal.c
index f44fe8412162..a3022dc48ef8 100644
--- a/arch/ia64/kernel/sal.c
+++ b/arch/ia64/kernel/sal.c
@@ -109,6 +109,13 @@ check_versions (struct ia64_sal_systab *systab)
                 sal_revision = SAL_VERSION_CODE(2, 8);
                 sal_version = SAL_VERSION_CODE(0, 0);
         }
+
+        if (ia64_platform_is("sn2") && (sal_revision == SAL_VERSION_CODE(2, 9)))
+                /*
+                 * SGI Altix has hard-coded version 2.9 in their prom
+                 * but they actually implement 3.2, so let's fix it here.
+                 */
+                sal_revision = SAL_VERSION_CODE(3, 2);
 }
 
 static void __init
diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c
index 309da3567bc8..5740296c35af 100644
--- a/arch/ia64/kernel/signal.c
+++ b/arch/ia64/kernel/signal.c
@@ -342,15 +342,33 @@ setup_frame (int sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *set,
 
         new_sp = scr->pt.r12;
         tramp_addr = (unsigned long) __kernel_sigtramp;
-        if ((ka->sa.sa_flags & SA_ONSTACK) && sas_ss_flags(new_sp) == 0) {
-                new_sp = current->sas_ss_sp + current->sas_ss_size;
-                /*
-                 * We need to check for the register stack being on the signal stack
-                 * separately, because it's switched separately (memory stack is switched
-                 * in the kernel, register stack is switched in the signal trampoline).
-                 */
-                if (!rbs_on_sig_stack(scr->pt.ar_bspstore))
-                        new_rbs = (current->sas_ss_sp + sizeof(long) - 1) & ~(sizeof(long) - 1);
+        if (ka->sa.sa_flags & SA_ONSTACK) {
+                int onstack = sas_ss_flags(new_sp);
+
+                if (onstack == 0) {
+                        new_sp = current->sas_ss_sp + current->sas_ss_size;
+                        /*
+                         * We need to check for the register stack being on the
+                         * signal stack separately, because it's switched
+                         * separately (memory stack is switched in the kernel,
+                         * register stack is switched in the signal trampoline).
+                         */
+                        if (!rbs_on_sig_stack(scr->pt.ar_bspstore))
+                                new_rbs = ALIGN(current->sas_ss_sp,
+                                                sizeof(long));
+                } else if (onstack == SS_ONSTACK) {
+                        unsigned long check_sp;
+
+                        /*
+                         * If we are on the alternate signal stack and would
+                         * overflow it, don't. Return an always-bogus address
+                         * instead so we will die with SIGSEGV.
+                         */
+                        check_sp = (new_sp - sizeof(*frame)) & -STACK_ALIGN;
+                        if (!likely(on_sig_stack(check_sp)))
+                                return force_sigsegv_info(sig, (void __user *)
+                                                          check_sp);
+                }
         }
         frame = (void __user *) ((new_sp - sizeof(*frame)) & -STACK_ALIGN);
 
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 6dfa3b3c0e2a..18a9c5f4b00d 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -742,7 +742,9 @@ sys_call_table:
         .long sys_epoll_pwait           /* 315 */
         .long sys_utimensat
         .long sys_signalfd
-        .long sys_ni_syscall
+        .long sys_timerfd_create
         .long sys_eventfd
         .long sys_fallocate             /* 320 */
+        .long sys_timerfd_settime
+        .long sys_timerfd_gettime
 
diff --git a/arch/m68knommu/defconfig b/arch/m68knommu/defconfig
index 648113075f97..670b0a99cfa0 100644
--- a/arch/m68knommu/defconfig
+++ b/arch/m68knommu/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.23
-# Thu Oct 18 13:17:38 2007
+# Linux kernel version: 2.6.25-rc3
+# Mon Feb 25 15:03:00 2008
 #
 CONFIG_M68K=y
 # CONFIG_MMU is not set
@@ -15,8 +15,10 @@ CONFIG_GENERIC_FIND_NEXT_BIT=y
 CONFIG_GENERIC_HWEIGHT=y
 CONFIG_GENERIC_HARDIRQS=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_TIME=y
 CONFIG_TIME_LOW_RES=y
 CONFIG_NO_IOPORT=y
+CONFIG_ARCH_SUPPORTS_AOUT=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
@@ -31,12 +33,14 @@ CONFIG_LOCALVERSION_AUTO=y
 # CONFIG_POSIX_MQUEUE is not set
 # CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_TASKSTATS is not set
-# CONFIG_USER_NS is not set
 # CONFIG_AUDIT is not set
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+# CONFIG_GROUP_SCHED is not set
 # CONFIG_SYSFS_DEPRECATED is not set
 # CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
 # CONFIG_BLK_DEV_INITRD is not set
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_SYSCTL=y
@@ -48,15 +52,22 @@ CONFIG_SYSCTL_SYSCALL=y
 CONFIG_PRINTK=y
 CONFIG_BUG=y
 CONFIG_ELF_CORE=y
+CONFIG_COMPAT_BRK=y
 CONFIG_BASE_FULL=y
 # CONFIG_FUTEX is not set
 # CONFIG_EPOLL is not set
 # CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
 # CONFIG_EVENTFD is not set
 # CONFIG_VM_EVENT_COUNTERS is not set
 CONFIG_SLAB=y
 # CONFIG_SLUB is not set
 # CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+# CONFIG_HAVE_OPROFILE is not set
+# CONFIG_HAVE_KPROBES is not set
+CONFIG_SLABINFO=y
 CONFIG_TINY_SHMEM=y
 CONFIG_BASE_SMALL=0
 CONFIG_MODULES=y
@@ -83,6 +94,8 @@ CONFIG_IOSCHED_NOOP=y
 # CONFIG_DEFAULT_CFQ is not set
 CONFIG_DEFAULT_NOOP=y
 CONFIG_DEFAULT_IOSCHED="noop"
+CONFIG_CLASSIC_RCU=y
+# CONFIG_PREEMPT_RCU is not set
 
 #
 # Processor type and features
@@ -121,6 +134,7 @@ CONFIG_M5272C3=y
 # CONFIG_MOD5272 is not set
 CONFIG_FREESCALE=y
 CONFIG_4KSTACKS=y
+CONFIG_HZ=100
 
 #
 # RAM configuration
@@ -147,6 +161,7 @@ CONFIG_FLATMEM_MANUAL=y
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
 # CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4
 # CONFIG_RESOURCES_64BIT is not set
 CONFIG_ZONE_DMA_FLAG=1
@@ -159,10 +174,6 @@ CONFIG_VIRT_TO_BUS=y
 # CONFIG_ARCH_SUPPORTS_MSI is not set
 
 #
-# PCCARD (PCMCIA/CardBus) support
-#
-
-#
 # Executable file formats
 #
 CONFIG_BINFMT_FLAT=y
@@ -205,6 +216,7 @@ CONFIG_IP_FIB_HASH=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_TCP_CONG_ADVANCED is not set
 CONFIG_TCP_CONG_CUBIC=y
@@ -229,10 +241,6 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
 # CONFIG_LAPB is not set
 # CONFIG_ECONET is not set
 # CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
 # CONFIG_NET_SCHED is not set
 
 #
@@ -240,6 +248,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
 #
 # CONFIG_NET_PKTGEN is not set
 # CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
 # CONFIG_IRDA is not set
 # CONFIG_BT is not set
 # CONFIG_AF_RXRPC is not set
@@ -283,6 +292,7 @@ CONFIG_MTD_BLOCK=y
 # CONFIG_INFTL is not set
 # CONFIG_RFD_FTL is not set
 # CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
 
 #
 # RAM/ROM/Flash chip drivers
@@ -339,10 +349,11 @@ CONFIG_BLK_DEV=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_BLK_DEV_XIP is not set
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
 # CONFIG_MISC_DEVICES is not set
+CONFIG_HAVE_IDE=y
 # CONFIG_IDE is not set
 
 #
@@ -360,9 +371,15 @@ CONFIG_NETDEVICES=y
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_VETH is not set
 # CONFIG_PHYLIB is not set
 CONFIG_NET_ETHERNET=y
 # CONFIG_MII is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
 CONFIG_FEC=y
 # CONFIG_FEC2 is not set
 # CONFIG_NETDEV_1000 is not set
@@ -377,7 +394,7 @@ CONFIG_FEC=y
 CONFIG_PPP=y
 # CONFIG_PPP_MULTILINK is not set
 # CONFIG_PPP_FILTER is not set
-# CONFIG_PPP_ASYNC is not set
+CONFIG_PPP_ASYNC=y
 # CONFIG_PPP_SYNC_TTY is not set
 # CONFIG_PPP_DEFLATE is not set
 # CONFIG_PPP_BSDCOMP is not set
@@ -386,7 +403,6 @@ CONFIG_PPP=y
 # CONFIG_PPPOL2TP is not set
 # CONFIG_SLIP is not set
 CONFIG_SLHC=y
-# CONFIG_SHAPER is not set
 # CONFIG_NETCONSOLE is not set
 # CONFIG_NETPOLL is not set
 # CONFIG_NET_POLL_CONTROLLER is not set
@@ -418,12 +434,16 @@ CONFIG_SLHC=y
 #
 # Non-8250 serial port support
 #
-CONFIG_SERIAL_COLDFIRE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_COLDFIRE is not set
+CONFIG_SERIAL_MCF=y
+CONFIG_SERIAL_MCF_BAUDRATE=19200
+CONFIG_SERIAL_MCF_CONSOLE=y
 # CONFIG_UNIX98_PTYS is not set
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
 # CONFIG_HW_RANDOM is not set
 # CONFIG_GEN_RTC is not set
 # CONFIG_R3964 is not set
@@ -439,6 +459,14 @@ CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_W1 is not set
 # CONFIG_POWER_SUPPLY is not set
 # CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
 
 #
 # Multifunction device drivers
@@ -450,20 +478,20 @@ CONFIG_LEGACY_PTY_COUNT=256
 #
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
+# CONFIG_DAB is not set
 
 #
 # Graphics support
 #
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
 # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
 #
 # Display device support
 #
 # CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=y
-# CONFIG_FB is not set
 
 #
 # Sound
@@ -471,23 +499,11 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y
 # CONFIG_SOUND is not set
 # CONFIG_USB_SUPPORT is not set
 # CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
 # CONFIG_NEW_LEDS is not set
 # CONFIG_RTC_CLASS is not set
 
 #
-# DMA Engine support
-#
-# CONFIG_DMA_ENGINE is not set
-
-#
-# DMA Clients
-#
-
-#
-# DMA Devices
-#
-
-#
 # Userspace I/O
 #
 # CONFIG_UIO is not set
@@ -505,11 +521,9 @@ CONFIG_EXT2_FS=y
 # CONFIG_XFS_FS is not set
 # CONFIG_GFS2_FS is not set
 # CONFIG_OCFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-CONFIG_ROMFS_FS=y
+# CONFIG_DNOTIFY is not set
 # CONFIG_INOTIFY is not set
 # CONFIG_QUOTA is not set
-# CONFIG_DNOTIFY is not set
 # CONFIG_AUTOFS_FS is not set
 # CONFIG_AUTOFS4_FS is not set
 # CONFIG_FUSE_FS is not set
@@ -535,7 +549,6 @@ CONFIG_PROC_SYSCTL=y
 CONFIG_SYSFS=y
 # CONFIG_TMPFS is not set
 # CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
 # CONFIG_CONFIGFS_FS is not set
 
 #
@@ -551,42 +564,27 @@ CONFIG_RAMFS=y
 # CONFIG_JFFS2_FS is not set
 # CONFIG_CRAMFS is not set
 # CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
 # CONFIG_HPFS_FS is not set
 # CONFIG_QNX4FS_FS is not set
+CONFIG_ROMFS_FS=y
 # CONFIG_SYSV_FS is not set
 # CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-# CONFIG_NFS_FS is not set
-# CONFIG_NFSD is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
+# CONFIG_NETWORK_FILESYSTEMS is not set
 
 #
 # Partition Types
 #
 # CONFIG_PARTITION_ADVANCED is not set
 CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
 # CONFIG_NLS is not set
-
-#
-# Distributed Lock Manager
-#
 # CONFIG_DLM is not set
 
 #
 # Kernel hacking
 #
 # CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
 # CONFIG_ENABLE_MUST_CHECK is not set
 # CONFIG_MAGIC_SYSRQ is not set
 # CONFIG_UNUSED_SYMBOLS is not set
@@ -594,6 +592,7 @@ CONFIG_MSDOS_PARTITION=y
 # CONFIG_HEADERS_CHECK is not set
 # CONFIG_DEBUG_KERNEL is not set
 # CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_SAMPLES is not set
 # CONFIG_FULLDEBUG is not set
 # CONFIG_HIGHPROFILE is not set
 # CONFIG_BOOTPARAM is not set
@@ -605,6 +604,7 @@ CONFIG_MSDOS_PARTITION=y
 #
 # CONFIG_KEYS is not set
 # CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
 # CONFIG_CRYPTO is not set
 
 #
diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S
index 1b02b8820068..fca2e49917a3 100644
--- a/arch/m68knommu/kernel/syscalltable.S
+++ b/arch/m68knommu/kernel/syscalltable.S
@@ -336,9 +336,11 @@ ENTRY(sys_call_table)
         .long sys_epoll_pwait           /* 315 */
         .long sys_utimensat
         .long sys_signalfd
-        .long sys_ni_syscall
+        .long sys_timerfd_create
         .long sys_eventfd
         .long sys_fallocate             /* 320 */
+        .long sys_timerfd_settime
+        .long sys_timerfd_gettime
 
         .rept NR_syscalls-(.-sys_call_table)/4
                 .long sys_ni_syscall
diff --git a/arch/m68knommu/platform/68328/timers.c b/arch/m68knommu/platform/68328/timers.c
index 9159fd05c9ac..6bafefa546e5 100644
--- a/arch/m68knommu/platform/68328/timers.c
+++ b/arch/m68knommu/platform/68328/timers.c
@@ -67,16 +67,6 @@ static irqreturn_t hw_tick(int irq, void *dummy)
 
 /***************************************************************************/
 
-static irqreturn_t hw_tick(int irq, void *dummy)
-{
-        /* Reset Timer1 */
-        TSTAT &= 0;
-
-        return arch_timer_interrupt(irq, dummy);
-}
-
-/***************************************************************************/
-
 static struct irqaction m68328_timer_irq = {
         .name    = "timer",
         .flags   = IRQF_DISABLED | IRQF_TIMER,
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 5b8d8382b762..1189d8d6170d 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -90,6 +90,7 @@ config PPC
         select HAVE_IDE
         select HAVE_OPROFILE
         select HAVE_KPROBES
+        select HAVE_KRETPROBES
 
 config EARLY_PRINTK
         bool
diff --git a/arch/powerpc/boot/cuboot-bamboo.c b/arch/powerpc/boot/cuboot-bamboo.c
index 900c7ff2b7e9..b5c30f766c40 100644
--- a/arch/powerpc/boot/cuboot-bamboo.c
+++ b/arch/powerpc/boot/cuboot-bamboo.c
@@ -17,6 +17,7 @@
 #include "44x.h"
 #include "cuboot.h"
 
+#define TARGET_4xx
 #define TARGET_44x
 #include "ppcboot.h"
 
diff --git a/arch/powerpc/boot/cuboot-ebony.c b/arch/powerpc/boot/cuboot-ebony.c
index c5f37ce172ea..56564ba37f62 100644
--- a/arch/powerpc/boot/cuboot-ebony.c
+++ b/arch/powerpc/boot/cuboot-ebony.c
@@ -17,6 +17,7 @@
 #include "44x.h"
 #include "cuboot.h"
 
+#define TARGET_4xx
 #define TARGET_44x
 #include "ppcboot.h"
 
diff --git a/arch/powerpc/boot/cuboot-katmai.c b/arch/powerpc/boot/cuboot-katmai.c
index c021167f9381..5434d70b5660 100644
--- a/arch/powerpc/boot/cuboot-katmai.c
+++ b/arch/powerpc/boot/cuboot-katmai.c
@@ -22,6 +22,7 @@
 #include "44x.h"
 #include "cuboot.h"
 
+#define TARGET_4xx
 #define TARGET_44x
 #include "ppcboot.h"
 
diff --git a/arch/powerpc/boot/cuboot-taishan.c b/arch/powerpc/boot/cuboot-taishan.c
index f66455a45ab1..b55b80467eed 100644
--- a/arch/powerpc/boot/cuboot-taishan.c
+++ b/arch/powerpc/boot/cuboot-taishan.c
@@ -21,7 +21,9 @@
 #include "dcr.h"
 #include "4xx.h"
 
+#define TARGET_4xx
 #define TARGET_44x
+#define TARGET_440GX
 #include "ppcboot.h"
 
 static bd_t bd;
diff --git a/arch/powerpc/boot/cuboot-warp.c b/arch/powerpc/boot/cuboot-warp.c
index bdedebe1bc14..3db93e85e9ea 100644
--- a/arch/powerpc/boot/cuboot-warp.c
+++ b/arch/powerpc/boot/cuboot-warp.c
@@ -11,6 +11,7 @@
 #include "4xx.h"
 #include "cuboot.h"
 
+#define TARGET_4xx
 #define TARGET_44x
 #include "ppcboot.h"
 
diff --git a/arch/powerpc/boot/dts/haleakala.dts b/arch/powerpc/boot/dts/haleakala.dts
index 5dd3d15f0feb..ae68fefc01b6 100644
--- a/arch/powerpc/boot/dts/haleakala.dts
+++ b/arch/powerpc/boot/dts/haleakala.dts
@@ -235,7 +235,7 @@
                         #interrupt-cells = <1>;
                         #size-cells = <2>;
                         #address-cells = <3>;
-                        compatible = "ibm,plb-pciex-405exr", "ibm,plb-pciex";
+                        compatible = "ibm,plb-pciex-405ex", "ibm,plb-pciex";
                         primary;
                         port = <0>; /* port number */
                         reg = <a0000000 20000000        /* Config space access */
diff --git a/arch/powerpc/boot/dts/katmai.dts b/arch/powerpc/boot/dts/katmai.dts
index bc32ac7250ec..fc86e5a3afc4 100644
--- a/arch/powerpc/boot/dts/katmai.dts
+++ b/arch/powerpc/boot/dts/katmai.dts
@@ -38,8 +38,8 @@
                         timebase-frequency = <0>; /* Filled in by zImage */
                         i-cache-line-size = <20>;
                         d-cache-line-size = <20>;
-                        i-cache-size = <20000>;
-                        d-cache-size = <20000>;
+                        i-cache-size = <8000>;
+                        d-cache-size = <8000>;
                         dcr-controller;
                         dcr-access-method = "native";
                 };
@@ -136,11 +136,11 @@
                 };
 
                 POB0: opb {
-                        compatible = "ibm,opb-440spe", "ibm,opb-440gp", "ibm,opb";
+                        compatible = "ibm,opb-440spe", "ibm,opb-440gp", "ibm,opb";
                         #address-cells = <1>;
                         #size-cells = <1>;
-                        ranges = <00000000 4 e0000000 20000000>;
-                        clock-frequency = <0>; /* Filled in by zImage */
+                        ranges = <00000000 4 e0000000 20000000>;
+                        clock-frequency = <0>; /* Filled in by zImage */
 
                         EBC0: ebc {
                                 compatible = "ibm,ebc-440spe", "ibm,ebc-440gp", "ibm,ebc";
@@ -153,38 +153,38 @@
                         };
 
                         UART0: serial@10000200 {
-                                device_type = "serial";
-                                compatible = "ns16550";
-                                reg = <10000200 8>;
+                                device_type = "serial";
+                                compatible = "ns16550";
+                                reg = <10000200 8>;
                                 virtual-reg = <a0000200>;
-                                clock-frequency = <0>; /* Filled in by zImage */
-                                current-speed = <1c200>;
-                                interrupt-parent = <&UIC0>;
-                                interrupts = <0 4>;
-                        };
+                                clock-frequency = <0>; /* Filled in by zImage */
+                                current-speed = <1c200>;
+                                interrupt-parent = <&UIC0>;
+                                interrupts = <0 4>;
+                        };
 
                         UART1: serial@10000300 {
-                                device_type = "serial";
-                                compatible = "ns16550";
-                                reg = <10000300 8>;
+                                device_type = "serial";
+                                compatible = "ns16550";
+                                reg = <10000300 8>;
                                 virtual-reg = <a0000300>;
-                                clock-frequency = <0>;
-                                current-speed = <0>;
-                                interrupt-parent = <&UIC0>;
-                                interrupts = <1 4>;
-                        };
+                                clock-frequency = <0>;
+                                current-speed = <0>;
+                                interrupt-parent = <&UIC0>;
+                                interrupts = <1 4>;
+                        };
 
 
                         UART2: serial@10000600 {
-                                device_type = "serial";
-                                compatible = "ns16550";
-                                reg = <10000600 8>;
+                                device_type = "serial";
+                                compatible = "ns16550";
+                                reg = <10000600 8>;
                                 virtual-reg = <a0000600>;
-                                clock-frequency = <0>;
-                                current-speed = <0>;
-                                interrupt-parent = <&UIC1>;
-                                interrupts = <5 4>;
-                        };
+                                clock-frequency = <0>;
+                                current-speed = <0>;
+                                interrupt-parent = <&UIC1>;
+                                interrupts = <5 4>;
+                        };
 
                         IIC0: i2c@10000400 {
                                 compatible = "ibm,iic-440spe", "ibm,iic-440gp", "ibm,iic";
diff --git a/arch/powerpc/oprofile/op_model_cell.c b/arch/powerpc/oprofile/op_model_cell.c
index 13929771bee7..9eed1f68fcab 100644
--- a/arch/powerpc/oprofile/op_model_cell.c
+++ b/arch/powerpc/oprofile/op_model_cell.c
@@ -1151,7 +1151,7 @@ static void cell_handle_interrupt(struct pt_regs *regs,
                 for (i = 0; i < num_counters; ++i) {
                         if ((interrupt_mask & CBE_PM_CTR_OVERFLOW_INTR(i))
                             && ctr[i].enabled) {
-                                oprofile_add_pc(pc, is_kernel, i);
+                                oprofile_add_ext_sample(pc, regs, i, is_kernel);
                                 cbe_write_ctr(cpu, i, reset_value[i]);
                         }
                 }
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_common.c b/arch/powerpc/platforms/52xx/mpc52xx_common.c
index 9aa4425d80b2..4d5fd1dbd400 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_common.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_common.c
@@ -199,6 +199,7 @@ int mpc52xx_set_psc_clkdiv(int psc_id, int clkdiv)
 
         return 0;
 }
+EXPORT_SYMBOL(mpc52xx_set_psc_clkdiv);
 
 /**
  * mpc52xx_restart: ppc_md->restart hook for mpc5200 using the watchdog timer
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index edab631a8dcb..20ea0e118f24 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -113,7 +113,7 @@
 
 /* IOMMU sizing */
 #define IO_SEGMENT_SHIFT        28
-#define IO_PAGENO_BITS          (IO_SEGMENT_SHIFT - IOMMU_PAGE_SHIFT)
+#define IO_PAGENO_BITS(shift)   (IO_SEGMENT_SHIFT - (shift))
 
 /* The high bit needs to be set on every DMA address */
 #define SPIDER_DMA_OFFSET       0x80000000ul
@@ -123,7 +123,6 @@ struct iommu_window {
         struct cbe_iommu *iommu;
         unsigned long offset;
         unsigned long size;
-        unsigned long pte_offset;
         unsigned int ioid;
         struct iommu_table table;
 };
@@ -200,7 +199,7 @@ static void tce_build_cell(struct iommu_table *tbl, long index, long npages,
                 (window->ioid & IOPTE_IOID_Mask);
 #endif
 
-        io_pte = (unsigned long *)tbl->it_base + (index - window->pte_offset);
+        io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
 
         for (i = 0; i < npages; i++, uaddr += IOMMU_PAGE_SIZE)
                 io_pte[i] = base_pte | (__pa(uaddr) & IOPTE_RPN_Mask);
@@ -232,7 +231,7 @@ static void tce_free_cell(struct iommu_table *tbl, long index, long npages)
                 | (window->ioid & IOPTE_IOID_Mask);
 #endif
 
-        io_pte = (unsigned long *)tbl->it_base + (index - window->pte_offset);
+        io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
 
         for (i = 0; i < npages; i++)
                 io_pte[i] = pte;
@@ -307,76 +306,84 @@ static int cell_iommu_find_ioc(int nid, unsigned long *base)
         return -ENODEV;
 }
 
-static void cell_iommu_setup_page_tables(struct cbe_iommu *iommu,
+static void cell_iommu_setup_stab(struct cbe_iommu *iommu,
                                 unsigned long dbase, unsigned long dsize,
                                 unsigned long fbase, unsigned long fsize)
 {
         struct page *page;
-        int i;
-        unsigned long reg, segments, pages_per_segment, ptab_size, stab_size,
-                      n_pte_pages, base;
-
-        base = dbase;
-        if (fsize != 0)
-                base = min(fbase, dbase);
+        unsigned long segments, stab_size;
 
         segments = max(dbase + dsize, fbase + fsize) >> IO_SEGMENT_SHIFT;
-        pages_per_segment = 1ull << IO_PAGENO_BITS;
 
-        pr_debug("%s: iommu[%d]: segments: %lu, pages per segment: %lu\n",
-                        __FUNCTION__, iommu->nid, segments, pages_per_segment);
+        pr_debug("%s: iommu[%d]: segments: %lu\n",
+                        __FUNCTION__, iommu->nid, segments);
 
         /* set up the segment table */
         stab_size = segments * sizeof(unsigned long);
         page = alloc_pages_node(iommu->nid, GFP_KERNEL, get_order(stab_size));
         BUG_ON(!page);
         iommu->stab = page_address(page);
-        clear_page(iommu->stab);
+        memset(iommu->stab, 0, stab_size);
+}
+
+static unsigned long *cell_iommu_alloc_ptab(struct cbe_iommu *iommu,
+                unsigned long base, unsigned long size, unsigned long gap_base,
+                unsigned long gap_size, unsigned long page_shift)
+{
+        struct page *page;
+        int i;
+        unsigned long reg, segments, pages_per_segment, ptab_size,
+                      n_pte_pages, start_seg, *ptab;
+
+        start_seg = base >> IO_SEGMENT_SHIFT;
+        segments  = size >> IO_SEGMENT_SHIFT;
+        pages_per_segment = 1ull << IO_PAGENO_BITS(page_shift);
+        /* PTEs for each segment must start on a 4K bounday */
+        pages_per_segment = max(pages_per_segment,
+                                (1 << 12) / sizeof(unsigned long));
 
-        /* ... and the page tables. Since these are contiguous, we can treat
-         * the page tables as one array of ptes, like pSeries does.
-         */
         ptab_size = segments * pages_per_segment * sizeof(unsigned long);
         pr_debug("%s: iommu[%d]: ptab_size: %lu, order: %d\n", __FUNCTION__,
                         iommu->nid, ptab_size, get_order(ptab_size));
         page = alloc_pages_node(iommu->nid, GFP_KERNEL, get_order(ptab_size));
         BUG_ON(!page);
 
-        iommu->ptab = page_address(page);
-        memset(iommu->ptab, 0, ptab_size);
+        ptab = page_address(page);
+        memset(ptab, 0, ptab_size);
 
-        /* allocate a bogus page for the end of each mapping */
-        page = alloc_pages_node(iommu->nid, GFP_KERNEL, 0);
-        BUG_ON(!page);
-        iommu->pad_page = page_address(page);
-        clear_page(iommu->pad_page);
-
-        /* number of pages needed for a page table */
-        n_pte_pages = (pages_per_segment *
-                       sizeof(unsigned long)) >> IOMMU_PAGE_SHIFT;
+        /* number of 4K pages needed for a page table */
+        n_pte_pages = (pages_per_segment * sizeof(unsigned long)) >> 12;
 
         pr_debug("%s: iommu[%d]: stab at %p, ptab at %p, n_pte_pages: %lu\n",
-                        __FUNCTION__, iommu->nid, iommu->stab, iommu->ptab,
+                        __FUNCTION__, iommu->nid, iommu->stab, ptab,
                         n_pte_pages);
 
         /* initialise the STEs */
         reg = IOSTE_V | ((n_pte_pages - 1) << 5);
 
-        if (IOMMU_PAGE_SIZE == 0x1000)
-                reg |= IOSTE_PS_4K;
-        else if (IOMMU_PAGE_SIZE == 0x10000)
-                reg |= IOSTE_PS_64K;
-        else {
-                extern void __unknown_page_size_error(void);
-                __unknown_page_size_error();
+        switch (page_shift) {
+        case 12: reg |= IOSTE_PS_4K;  break;
+        case 16: reg |= IOSTE_PS_64K; break;
+        case 20: reg |= IOSTE_PS_1M;  break;
+        case 24: reg |= IOSTE_PS_16M; break;
+        default: BUG();
         }
 
+        gap_base = gap_base >> IO_SEGMENT_SHIFT;
+        gap_size = gap_size >> IO_SEGMENT_SHIFT;
+
         pr_debug("Setting up IOMMU stab:\n");
-        for (i = base >> IO_SEGMENT_SHIFT; i < segments; i++) {
-                iommu->stab[i] = reg |
-                        (__pa(iommu->ptab) + n_pte_pages * IOMMU_PAGE_SIZE * i);
+        for (i = start_seg; i < (start_seg + segments); i++) {
+                if (i >= gap_base && i < (gap_base + gap_size)) {
+                        pr_debug("\toverlap at %d, skipping\n", i);
+                        continue;
+                }
+                iommu->stab[i] = reg | (__pa(ptab) + (n_pte_pages << 12) *
+                                        (i - start_seg));
                 pr_debug("\t[%d] 0x%016lx\n", i, iommu->stab[i]);
         }
+
+        return ptab;
 }
 
 static void cell_iommu_enable_hardware(struct cbe_iommu *iommu)
@@ -423,7 +430,9 @@ static void cell_iommu_enable_hardware(struct cbe_iommu *iommu)
 static void cell_iommu_setup_hardware(struct cbe_iommu *iommu,
         unsigned long base, unsigned long size)
 {
-        cell_iommu_setup_page_tables(iommu, base, size, 0, 0);
+        cell_iommu_setup_stab(iommu, base, size, 0, 0);
+        iommu->ptab = cell_iommu_alloc_ptab(iommu, base, size, 0, 0,
+                                            IOMMU_PAGE_SHIFT);
         cell_iommu_enable_hardware(iommu);
 }
 
@@ -464,6 +473,7 @@ cell_iommu_setup_window(struct cbe_iommu *iommu, struct device_node *np,
                         unsigned long pte_offset)
 {
         struct iommu_window *window;
+        struct page *page;
         u32 ioid;
 
         ioid = cell_iommu_get_ioid(np);
@@ -475,13 +485,11 @@ cell_iommu_setup_window(struct cbe_iommu *iommu, struct device_node *np,
         window->size = size;
         window->ioid = ioid;
         window->iommu = iommu;
-        window->pte_offset = pte_offset;
 
         window->table.it_blocksize = 16;
         window->table.it_base = (unsigned long)iommu->ptab;
         window->table.it_index = iommu->nid;
-        window->table.it_offset = (offset >> IOMMU_PAGE_SHIFT) +
-                window->pte_offset;
+        window->table.it_offset = (offset >> IOMMU_PAGE_SHIFT) + pte_offset;
         window->table.it_size = size >> IOMMU_PAGE_SHIFT;
 
         iommu_init_table(&window->table, iommu->nid);
@@ -504,6 +512,11 @@ cell_iommu_setup_window(struct cbe_iommu *iommu, struct device_node *np,
          * This code also assumes that we have a window that starts at 0,
          * which is the case on all spider based blades.
          */
+        page = alloc_pages_node(iommu->nid, GFP_KERNEL, 0);
+        BUG_ON(!page);
+        iommu->pad_page = page_address(page);
+        clear_page(iommu->pad_page);
+
         __set_bit(0, window->table.it_map);
         tce_build_cell(&window->table, window->table.it_offset, 1,
                        (unsigned long)iommu->pad_page, DMA_TO_DEVICE);
@@ -549,7 +562,7 @@ static void cell_dma_dev_setup_iommu(struct device *dev)
         archdata->dma_data = &window->table;
 }
 
-static void cell_dma_dev_setup_static(struct device *dev);
+static void cell_dma_dev_setup_fixed(struct device *dev);
 
 static void cell_dma_dev_setup(struct device *dev)
 {
@@ -557,7 +570,7 @@ static void cell_dma_dev_setup(struct device *dev)
 
         /* Order is important here, these are not mutually exclusive */
         if (get_dma_ops(dev) == &dma_iommu_fixed_ops)
-                cell_dma_dev_setup_static(dev);
+                cell_dma_dev_setup_fixed(dev);
         else if (get_pci_dma_ops() == &dma_iommu_ops)
                 cell_dma_dev_setup_iommu(dev);
         else if (get_pci_dma_ops() == &dma_direct_ops)
@@ -858,7 +871,7 @@ static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask)
         return 0;
 }
 
-static void cell_dma_dev_setup_static(struct device *dev)
+static void cell_dma_dev_setup_fixed(struct device *dev)
 {
         struct dev_archdata *archdata = &dev->archdata;
         u64 addr;
@@ -869,35 +882,45 @@ static void cell_dma_dev_setup_static(struct device *dev)
         dev_dbg(dev, "iommu: fixed addr = %lx\n", addr);
 }
 
+static void insert_16M_pte(unsigned long addr, unsigned long *ptab,
+                           unsigned long base_pte)
+{
+        unsigned long segment, offset;
+
+        segment = addr >> IO_SEGMENT_SHIFT;
+        offset = (addr >> 24) - (segment << IO_PAGENO_BITS(24));
+        ptab = ptab + (segment * (1 << 12) / sizeof(unsigned long));
+
+        pr_debug("iommu: addr %lx ptab %p segment %lx offset %lx\n",
+                  addr, ptab, segment, offset);
+
+        ptab[offset] = base_pte | (__pa(addr) & IOPTE_RPN_Mask);
+}
+
 static void cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu,
         struct device_node *np, unsigned long dbase, unsigned long dsize,
         unsigned long fbase, unsigned long fsize)
 {
-        unsigned long base_pte, uaddr, *io_pte;
-        int i;
+        unsigned long base_pte, uaddr, ioaddr, *ptab;
 
-        dma_iommu_fixed_base = fbase;
+        ptab = cell_iommu_alloc_ptab(iommu, fbase, fsize, dbase, dsize, 24);
 
-        /* convert from bytes into page table indices */
-        dbase = dbase >> IOMMU_PAGE_SHIFT;
-        dsize = dsize >> IOMMU_PAGE_SHIFT;
-        fbase = fbase >> IOMMU_PAGE_SHIFT;
-        fsize = fsize >> IOMMU_PAGE_SHIFT;
+        dma_iommu_fixed_base = fbase;
 
         pr_debug("iommu: mapping 0x%lx pages from 0x%lx\n", fsize, fbase);
 
-        io_pte = iommu->ptab;
         base_pte = IOPTE_PP_W | IOPTE_PP_R | IOPTE_M | IOPTE_SO_RW
                     | (cell_iommu_get_ioid(np) & IOPTE_IOID_Mask);
 
-        uaddr = 0;
-        for (i = fbase; i < fbase + fsize; i++, uaddr += IOMMU_PAGE_SIZE) {
+        for (uaddr = 0; uaddr < fsize; uaddr += (1 << 24)) {
                 /* Don't touch the dynamic region */
-                if (i >= dbase && i < (dbase + dsize)) {
-                        pr_debug("iommu: static/dynamic overlap, skipping\n");
+                ioaddr = uaddr + fbase;
+                if (ioaddr >= dbase && ioaddr < (dbase + dsize)) {
+                        pr_debug("iommu: fixed/dynamic overlap, skipping\n");
                         continue;
                 }
-                io_pte[i] = base_pte | (__pa(uaddr) & IOPTE_RPN_Mask);
+
+                insert_16M_pte(uaddr, ptab, base_pte);
         }
 
         mb();
@@ -995,7 +1018,9 @@ static int __init cell_iommu_fixed_mapping_init(void)
                         "fixed window 0x%lx-0x%lx\n", iommu->nid, dbase,
                          dbase + dsize, fbase, fbase + fsize);
 
-                cell_iommu_setup_page_tables(iommu, dbase, dsize, fbase, fsize);
+                cell_iommu_setup_stab(iommu, dbase, dsize, fbase, fsize);
+                iommu->ptab = cell_iommu_alloc_ptab(iommu, dbase, dsize, 0, 0,
+                                                    IOMMU_PAGE_SHIFT);
                 cell_iommu_setup_fixed_ptab(iommu, np, dbase, dsize,
                                              fbase, fsize);
                 cell_iommu_enable_hardware(iommu);
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index a7f609b3b876..dda34650cb07 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -149,6 +149,11 @@ static void __init cell_init_irq(void)
         mpic_init_IRQ();
 }
 
+static void __init cell_set_dabrx(void)
+{
+        mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER);
+}
+
 static void __init cell_setup_arch(void)
 {
 #ifdef CONFIG_SPU_BASE
@@ -158,6 +163,8 @@ static void __init cell_setup_arch(void)
 
         cbe_regs_init();
 
+        cell_set_dabrx();
+
 #ifdef CONFIG_CBE_RAS
         cbe_ras_init();
 #endif
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index 87eb07f94c5f..712001f6b7da 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -81,9 +81,12 @@ struct spu_slb {
 void spu_invalidate_slbs(struct spu *spu)
 {
         struct spu_priv2 __iomem *priv2 = spu->priv2;
+        unsigned long flags;
 
+        spin_lock_irqsave(&spu->register_lock, flags);
         if (spu_mfc_sr1_get(spu) & MFC_STATE1_RELOCATE_MASK)
                 out_be64(&priv2->slb_invalidate_all_W, 0UL);
+        spin_unlock_irqrestore(&spu->register_lock, flags);
 }
 EXPORT_SYMBOL_GPL(spu_invalidate_slbs);
 
@@ -148,7 +151,11 @@ static inline void spu_load_slb(struct spu *spu, int slbe, struct spu_slb *slb)
                         __func__, slbe, slb->vsid, slb->esid);
 
         out_be64(&priv2->slb_index_W, slbe);
+        /* set invalid before writing vsid */
+        out_be64(&priv2->slb_esid_RW, 0);
+        /* now it's safe to write the vsid */
         out_be64(&priv2->slb_vsid_RW, slb->vsid);
+        /* setting the new esid makes the entry valid again */
         out_be64(&priv2->slb_esid_RW, slb->esid);
 }
 
@@ -290,9 +297,11 @@ void spu_setup_kernel_slbs(struct spu *spu, struct spu_lscsa *lscsa,
                 nr_slbs++;
         }
 
+        spin_lock_irq(&spu->register_lock);
         /* Add the set of SLBs */
         for (i = 0; i < nr_slbs; i++)
                 spu_load_slb(spu, i, &slbs[i]);
+        spin_unlock_irq(&spu->register_lock);
 }
 EXPORT_SYMBOL_GPL(spu_setup_kernel_slbs);
 
@@ -337,13 +346,14 @@ spu_irq_class_1(int irq, void *data)
         if (stat & CLASS1_STORAGE_FAULT_INTR)
                 spu_mfc_dsisr_set(spu, 0ul);
         spu_int_stat_clear(spu, 1, stat);
-        spin_unlock(&spu->register_lock);
-        pr_debug("%s: %lx %lx %lx %lx\n", __FUNCTION__, mask, stat,
-                        dar, dsisr);
 
         if (stat & CLASS1_SEGMENT_FAULT_INTR)
                 __spu_trap_data_seg(spu, dar);
 
+        spin_unlock(&spu->register_lock);
+        pr_debug("%s: %lx %lx %lx %lx\n", __FUNCTION__, mask, stat,
+                        dar, dsisr);
+
         if (stat & CLASS1_STORAGE_FAULT_INTR)
                 __spu_trap_data_map(spu, dar, dsisr);
 
diff --git a/arch/powerpc/platforms/cell/spufs/context.c b/arch/powerpc/platforms/cell/spufs/context.c
index 133995ed5cc7..cf6c2c89211d 100644
--- a/arch/powerpc/platforms/cell/spufs/context.c
+++ b/arch/powerpc/platforms/cell/spufs/context.c
@@ -109,13 +109,12 @@ void spu_forget(struct spu_context *ctx)
 
         /*
          * This is basically an open-coded spu_acquire_saved, except that
-         * we don't acquire the state mutex interruptible.
+         * we don't acquire the state mutex interruptible, and we don't
+         * want this context to be rescheduled on release.
          */
         mutex_lock(&ctx->state_mutex);
-        if (ctx->state != SPU_STATE_SAVED) {
-                set_bit(SPU_SCHED_WAS_ACTIVE, &ctx->sched_flags);
+        if (ctx->state != SPU_STATE_SAVED)
                 spu_deactivate(ctx);
-        }
 
         mm = ctx->owner;
         ctx->owner = NULL;
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index c66c3756970d..f7a7e8635fb6 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -367,6 +367,13 @@ static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma,
                 return NOPFN_SIGBUS;
 
         /*
+         * Because we release the mmap_sem, the context may be destroyed while
+         * we're in spu_wait. Grab an extra reference so it isn't destroyed
+         * in the meantime.
+         */
+        get_spu_context(ctx);
+
+        /*
          * We have to wait for context to be loaded before we have
          * pages to hand out to the user, but we don't want to wait
          * with the mmap_sem held.
@@ -375,7 +382,7 @@ static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma,
          * hanged.
          */
         if (spu_acquire(ctx))
-                return NOPFN_REFAULT;
+                goto refault;
 
         if (ctx->state == SPU_STATE_SAVED) {
                 up_read(&current->mm->mmap_sem);
@@ -391,6 +398,9 @@ static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma,
 
         if (!ret)
                 spu_release(ctx);
+
+refault:
+        put_spu_context(ctx);
         return NOPFN_REFAULT;
 }
 
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 3a5972117de7..5d5f680cd0b8 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -246,7 +246,7 @@ static void spu_bind_context(struct spu *spu, struct spu_context *ctx)
         spu_switch_notify(spu, ctx);
         ctx->state = SPU_STATE_RUNNABLE;
 
-        spuctx_switch_state(ctx, SPU_UTIL_IDLE_LOADED);
+        spuctx_switch_state(ctx, SPU_UTIL_USER);
 }
 
 /*
diff --git a/arch/powerpc/platforms/cell/spufs/sputrace.c b/arch/powerpc/platforms/cell/spufs/sputrace.c
index 01974f7776e1..79aa773f3c99 100644
--- a/arch/powerpc/platforms/cell/spufs/sputrace.c
+++ b/arch/powerpc/platforms/cell/spufs/sputrace.c
@@ -58,12 +58,12 @@ static int sputrace_sprint(char *tbuf, int n)
                 ktime_to_timespec(ktime_sub(t->tstamp, sputrace_start));
 
         return snprintf(tbuf, n,
-                "[%lu.%09lu] %d: %s (thread = %d, spu = %d)\n",
+                "[%lu.%09lu] %d: %s (ctxthread = %d, spu = %d)\n",
                 (unsigned long) tv.tv_sec,
                 (unsigned long) tv.tv_nsec,
-                t->owner_tid,
-                t->name,
                 t->curr_tid,
+                t->name,
+                t->owner_tid,
                 t->number);
 }
 
@@ -188,6 +188,7 @@ struct spu_probe spu_probes[] = {
         { "spufs_ps_nopfn__insert", "%p %p", spu_context_event },
         { "spu_acquire_saved__enter", "%p", spu_context_nospu_event },
         { "destroy_spu_context__enter", "%p", spu_context_nospu_event },
+        { "spufs_stop_callback__enter", "%p %p", spu_context_event },
 };
 
 static int __init sputrace_init(void)
diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c
index 6f5886c7b1f9..e9dc7a55d1b9 100644
--- a/arch/powerpc/platforms/cell/spufs/switch.c
+++ b/arch/powerpc/platforms/cell/spufs/switch.c
@@ -34,6 +34,7 @@
 
 #include <linux/module.h>
 #include <linux/errno.h>
+#include <linux/hardirq.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
@@ -117,6 +118,8 @@ static inline void disable_interrupts(struct spu_state *csa, struct spu *spu)
          *     Write INT_MASK_class1 with value of 0.
          *     Save INT_Mask_class2 in CSA.
          *     Write INT_MASK_class2 with value of 0.
+         *     Synchronize all three interrupts to be sure
+         *     we no longer execute a handler on another CPU.
          */
         spin_lock_irq(&spu->register_lock);
         if (csa) {
@@ -129,6 +132,9 @@ static inline void disable_interrupts(struct spu_state *csa, struct spu *spu)
         spu_int_mask_set(spu, 2, 0ul);
         eieio();
         spin_unlock_irq(&spu->register_lock);
+        synchronize_irq(spu->irqs[0]);
+        synchronize_irq(spu->irqs[1]);
+        synchronize_irq(spu->irqs[2]);
 }
 
 static inline void set_watchdog_timer(struct spu_state *csa, struct spu *spu)
diff --git a/arch/powerpc/platforms/celleb/beat.h b/arch/powerpc/platforms/celleb/beat.h
index b2e292df13ca..ac82ac35b991 100644
--- a/arch/powerpc/platforms/celleb/beat.h
+++ b/arch/powerpc/platforms/celleb/beat.h
@@ -21,9 +21,6 @@
 #ifndef _CELLEB_BEAT_H
 #define _CELLEB_BEAT_H
 
-#define DABRX_KERNEL            (1UL<<1)
-#define DABRX_USER              (1UL<<0)
-
 int64_t beat_get_term_char(uint64_t,uint64_t*,uint64_t*,uint64_t*);
 int64_t beat_put_term_char(uint64_t,uint64_t,uint64_t,uint64_t);
 int64_t beat_repository_encode(int, const char *, uint64_t[4]);
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index b21444b681b6..9892827b6176 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -61,6 +61,7 @@ config S390
         def_bool y
         select HAVE_OPROFILE
         select HAVE_KPROBES
+        select HAVE_KRETPROBES
 
 source "init/Kconfig"
 
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index b3400b5ad5c6..783cfbbf87ca 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -330,6 +330,7 @@ config CPU_SUBTYPE_SH5_101
 
 config CPU_SUBTYPE_SH5_103
         bool "Support SH5-103 processor"
+        select CPU_SH5
 
 endchoice
 
diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c
index 5c3359756a92..71ff3d6f26e2 100644
--- a/arch/sh/drivers/dma/dma-sh.c
+++ b/arch/sh/drivers/dma/dma-sh.c
@@ -90,7 +90,7 @@ static irqreturn_t dma_tei(int irq, void *dev_id)
 
 static int sh_dmac_request_dma(struct dma_channel *chan)
 {
-        if (unlikely(!chan->flags & DMA_TEI_CAPABLE))
+        if (unlikely(!(chan->flags & DMA_TEI_CAPABLE)))
                 return 0;
 
         return request_irq(get_dmte_irq(chan->chan), dma_tei,
diff --git a/arch/sh/drivers/heartbeat.c b/arch/sh/drivers/heartbeat.c
index b76a14f12ce2..ab77b0e0fa0e 100644
--- a/arch/sh/drivers/heartbeat.c
+++ b/arch/sh/drivers/heartbeat.c
@@ -93,7 +93,7 @@ static int heartbeat_drv_probe(struct platform_device *pdev)
         }
 
         hd->base = ioremap_nocache(res->start, res->end - res->start + 1);
-        if (!unlikely(hd->base)) {
+        if (unlikely(!hd->base)) {
                 dev_err(&pdev->dev, "ioremap failed\n");
 
                 if (!pdev->dev.platform_data)
diff --git a/arch/sh/drivers/pci/ops-dreamcast.c b/arch/sh/drivers/pci/ops-dreamcast.c
index 0dac87b19624..e1284fc69361 100644
--- a/arch/sh/drivers/pci/ops-dreamcast.c
+++ b/arch/sh/drivers/pci/ops-dreamcast.c
@@ -83,9 +83,9 @@ static int gapspci_read(struct pci_bus *bus, unsigned int devfn, int where, int
                 return PCIBIOS_DEVICE_NOT_FOUND;
 
         switch (size) {
-                case 1: *val = ctrl_inb(GAPSPCI_BBA_CONFIG+where); break;
-                case 2: *val = ctrl_inw(GAPSPCI_BBA_CONFIG+where); break;
-                case 4: *val = ctrl_inl(GAPSPCI_BBA_CONFIG+where); break;
+                case 1: *val = inb(GAPSPCI_BBA_CONFIG+where); break;
+                case 2: *val = inw(GAPSPCI_BBA_CONFIG+where); break;
+                case 4: *val = inl(GAPSPCI_BBA_CONFIG+where); break;
         }       
 
         return PCIBIOS_SUCCESSFUL;
@@ -97,9 +97,9 @@ static int gapspci_write(struct pci_bus *bus, unsigned int devfn, int where, int
                 return PCIBIOS_DEVICE_NOT_FOUND;
 
         switch (size) {
-                case 1: ctrl_outb(( u8)val, GAPSPCI_BBA_CONFIG+where); break;
-                case 2: ctrl_outw((u16)val, GAPSPCI_BBA_CONFIG+where); break;
-                case 4: ctrl_outl((u32)val, GAPSPCI_BBA_CONFIG+where); break;
+                case 1: outb(( u8)val, GAPSPCI_BBA_CONFIG+where); break;
+                case 2: outw((u16)val, GAPSPCI_BBA_CONFIG+where); break;
+                case 4: outl((u32)val, GAPSPCI_BBA_CONFIG+where); break;
         }
 
         return PCIBIOS_SUCCESSFUL;
@@ -127,36 +127,36 @@ int __init gapspci_init(void)
          */
 
         for (i=0; i<16; i++)
-                idbuf[i] = ctrl_inb(GAPSPCI_REGS+i);
+                idbuf[i] = inb(GAPSPCI_REGS+i);
 
         if (strncmp(idbuf, "GAPSPCI_BRIDGE_2", 16))
                 return -ENODEV;
 
-        ctrl_outl(0x5a14a501, GAPSPCI_REGS+0x18);
+        outl(0x5a14a501, GAPSPCI_REGS+0x18);
 
         for (i=0; i<1000000; i++)
                 ;
 
-        if (ctrl_inl(GAPSPCI_REGS+0x18) != 1)
+        if (inl(GAPSPCI_REGS+0x18) != 1)
                 return -EINVAL;
 
-        ctrl_outl(0x01000000, GAPSPCI_REGS+0x20);
-        ctrl_outl(0x01000000, GAPSPCI_REGS+0x24);
+        outl(0x01000000, GAPSPCI_REGS+0x20);
+        outl(0x01000000, GAPSPCI_REGS+0x24);
 
-        ctrl_outl(GAPSPCI_DMA_BASE, GAPSPCI_REGS+0x28);
-        ctrl_outl(GAPSPCI_DMA_BASE+GAPSPCI_DMA_SIZE, GAPSPCI_REGS+0x2c);
+        outl(GAPSPCI_DMA_BASE, GAPSPCI_REGS+0x28);
+        outl(GAPSPCI_DMA_BASE+GAPSPCI_DMA_SIZE, GAPSPCI_REGS+0x2c);
 
-        ctrl_outl(1, GAPSPCI_REGS+0x14);
-        ctrl_outl(1, GAPSPCI_REGS+0x34);
+        outl(1, GAPSPCI_REGS+0x14);
+        outl(1, GAPSPCI_REGS+0x34);
 
         /* Setting Broadband Adapter */
-        ctrl_outw(0xf900, GAPSPCI_BBA_CONFIG+0x06);
-        ctrl_outl(0x00000000, GAPSPCI_BBA_CONFIG+0x30);
-        ctrl_outb(0x00, GAPSPCI_BBA_CONFIG+0x3c);
-        ctrl_outb(0xf0, GAPSPCI_BBA_CONFIG+0x0d);
-        ctrl_outw(0x0006, GAPSPCI_BBA_CONFIG+0x04);
-        ctrl_outl(0x00002001, GAPSPCI_BBA_CONFIG+0x10);
-        ctrl_outl(0x01000000, GAPSPCI_BBA_CONFIG+0x14);
+        outw(0xf900, GAPSPCI_BBA_CONFIG+0x06);
+        outl(0x00000000, GAPSPCI_BBA_CONFIG+0x30);
+        outb(0x00, GAPSPCI_BBA_CONFIG+0x3c);
+        outb(0xf0, GAPSPCI_BBA_CONFIG+0x0d);
+        outw(0x0006, GAPSPCI_BBA_CONFIG+0x04);
+        outl(0x00002001, GAPSPCI_BBA_CONFIG+0x10);
+        outl(0x01000000, GAPSPCI_BBA_CONFIG+0x14);
 
         return 0;
 }
diff --git a/arch/sh/kernel/cpu/sh2/setup-sh7619.c b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
index b230eb278cef..cc530f4d84d6 100644
--- a/arch/sh/kernel/cpu/sh2/setup-sh7619.c
+++ b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
@@ -10,7 +10,7 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/serial.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 enum {
         UNUSED = 0,
diff --git a/arch/sh/kernel/cpu/sh2a/clock-sh7203.c b/arch/sh/kernel/cpu/sh2a/clock-sh7203.c
index 3feb95a4fcbc..fb781329848a 100644
--- a/arch/sh/kernel/cpu/sh2a/clock-sh7203.c
+++ b/arch/sh/kernel/cpu/sh2a/clock-sh7203.c
@@ -21,8 +21,8 @@
 #include <asm/freq.h>
 #include <asm/io.h>
 
-const static int pll1rate[]={8,12,16,0};
-const static int pfc_divisors[]={1,2,3,4,6,8,12};
+static const int pll1rate[]={8,12,16,0};
+static const int pfc_divisors[]={1,2,3,4,6,8,12};
 #define ifc_divisors pfc_divisors
 
 #if (CONFIG_SH_CLK_MD == 0)
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
index db6ef5cecde1..e98dc4450352 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
@@ -10,7 +10,7 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/serial.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 enum {
         UNUSED = 0,
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
index a564425b905f..e6d4ec445dd8 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
@@ -10,7 +10,7 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/serial.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 enum {
         UNUSED = 0,
diff --git a/arch/sh/kernel/cpu/sh3/probe.c b/arch/sh/kernel/cpu/sh3/probe.c
index fcc80bb7bee7..10f2a760c5ee 100644
--- a/arch/sh/kernel/cpu/sh3/probe.c
+++ b/arch/sh/kernel/cpu/sh3/probe.c
@@ -94,9 +94,9 @@ int __uses_jump_to_uncached detect_cpu_and_cache_system(void)
                 boot_cpu_data.dcache.way_incr   = (1 << 13);
                 boot_cpu_data.dcache.entry_mask = 0x1ff0;
                 boot_cpu_data.dcache.sets       = 512;
-                ctrl_outl(CCR_CACHE_32KB, CCR3);
+                ctrl_outl(CCR_CACHE_32KB, CCR3_REG);
 #else
-                ctrl_outl(CCR_CACHE_16KB, CCR3);
+                ctrl_outl(CCR_CACHE_16KB, CCR3_REG);
 #endif
 #endif
         }
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
index dd0a20a685f7..f581534cb732 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
@@ -12,7 +12,7 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/serial.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 #include <asm/rtc.h>
 
 enum {
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index 969804bb523b..d3733b13ea52 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -16,7 +16,7 @@
 #include <linux/irq.h>
 #include <linux/platform_device.h>
 #include <linux/serial.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 enum {
         UNUSED = 0,
@@ -123,15 +123,15 @@ static struct resource rtc_resources[] = {
                 .flags  = IORESOURCE_IO,
         },
         [1] =   {
-                .start  = 20,
+                .start  = 21,
                 .flags  = IORESOURCE_IRQ,
         },
         [2] =   {
-                .start  = 21,
+                .start  = 22,
                 .flags  = IORESOURCE_IRQ,
         },
         [3] =   {
-                .start  = 22,
+                .start  = 20,
                 .flags  = IORESOURCE_IRQ,
         },
 };
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
index 0cc0e2bf135d..7406c9ad9259 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7710.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
@@ -12,7 +12,7 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/serial.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 #include <asm/rtc.h>
 
 enum {
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
index 3855ea4c21c8..8028082527c5 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
@@ -16,7 +16,7 @@
 #include <linux/init.h>
 #include <linux/serial.h>
 #include <linux/io.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 #include <asm/rtc.h>
 
 #define INTC_ICR1       0xA4140010UL
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
index dab193293f20..7371abf64f80 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
@@ -10,7 +10,7 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/serial.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 static struct plat_sci_port sci_platform_data[] = {
         {
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index ae3603aca615..ec884039b914 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -12,7 +12,7 @@
 #include <linux/init.h>
 #include <linux/serial.h>
 #include <linux/io.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 static struct resource rtc_resources[] = {
         [0] = {
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
index 85f81579b97e..254c5c55ab91 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
@@ -10,7 +10,7 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/serial.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 enum {
         UNUSED = 0,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
index c0a3f079dfdc..6d4f50cd4aaf 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
@@ -10,7 +10,7 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/serial.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 static struct plat_sci_port sci_platform_data[] = {
         {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
index 967e8b69a2f8..f26b5cdad0d1 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
@@ -12,7 +12,7 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/serial.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 static struct plat_sci_port sci_platform_data[] = {
         {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
index 73c778d40d13..b98b4bc93ec9 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
@@ -10,9 +10,9 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/serial.h>
+#include <linux/serial_sci.h>
 #include <linux/mm.h>
 #include <asm/mmzone.h>
-#include <asm/sci.h>
 
 static struct resource usbf_resources[] = {
         [0] = {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
index eabd5386812d..07c988dc9de6 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
@@ -12,7 +12,7 @@
 #include <linux/init.h>
 #include <linux/serial.h>
 #include <linux/io.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 static struct resource rtc_resources[] = {
         [0] = {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
index 32f4f59a837b..b9cec48b1808 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
@@ -10,7 +10,7 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/serial.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 static struct plat_sci_port sci_platform_data[] = {
         {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
index 293004b526ff..18dbbe23fea1 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
@@ -11,7 +11,7 @@
 #include <linux/init.h>
 #include <linux/serial.h>
 #include <linux/io.h>
-#include <asm/sci.h>
+#include <linux/serial_sci.h>
 
 static struct resource rtc_resources[] = {
         [0] = {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
index 74b60e96cdf4..621e7329ec63 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
@@ -10,10 +10,10 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/serial.h>
+#include <linux/serial_sci.h>
 #include <linux/io.h>
 #include <linux/mm.h>
 #include <asm/mmzone.h>
-#include <asm/sci.h>
 
 static struct plat_sci_port sci_platform_data[] = {
         {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-shx3.c b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
index 4dc958b6b314..bd35f32534b9 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-shx3.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
@@ -10,9 +10,9 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/serial.h>
+#include <linux/serial_sci.h>
 #include <linux/io.h>
 #include <asm/mmzone.h>
-#include <asm/sci.h>
 
 static struct plat_sci_port sci_platform_data[] = {
         {
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index e795f282dece..bf1b15d3f6f5 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -1,4 +1,4 @@
-# $Id: Makefile,v 1.62 2000/12/15 00:41:17 davem Exp $
+#
 # Makefile for the linux kernel.
 #
 
@@ -12,7 +12,8 @@ obj-y    := entry.o wof.o wuf.o etrap.o rtrap.o traps.o $(IRQ_OBJS) \
             sys_sparc.o sunos_asm.o systbls.o \
             time.o windows.o cpu.o devices.o sclow.o \
             tadpole.o tick14.o ptrace.o sys_solaris.o \
-            unaligned.o muldiv.o semaphore.o prom.o of_device.o devres.o
+            unaligned.o una_asm.o muldiv.o semaphore.o \
+            prom.o of_device.o devres.o
 
 devres-y = ../../../kernel/irq/devres.o
 
diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index 259a559d4cea..e7a0edfc1a32 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -32,7 +32,7 @@ struct cpu_fp_info {
 /* In order to get the fpu type correct, you need to take the IDPROM's
  * machine type value into consideration too.  I will fix this.
  */
-struct cpu_fp_info linux_sparc_fpu[] = {
+static struct cpu_fp_info linux_sparc_fpu[] = {
   { 0, 0, "Fujitsu MB86910 or Weitek WTL1164/5"},
   { 0, 1, "Fujitsu MB86911 or Weitek WTL1164/5 or LSI L64831"},
   { 0, 2, "LSI Logic L64802 or Texas Instruments ACT8847"},
@@ -76,7 +76,7 @@ struct cpu_fp_info linux_sparc_fpu[] = {
 
 #define NSPARCFPU  ARRAY_SIZE(linux_sparc_fpu)
 
-struct cpu_iu_info linux_sparc_chips[] = {
+static struct cpu_iu_info linux_sparc_chips[] = {
   /* Sun4/100, 4/200, SLC */
   { 0, 0, "Fujitsu  MB86900/1A or LSI L64831 SparcKIT-40"},
   /* borned STP1012PGA */
diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c
index d850785b2080..96344ff2bbe1 100644
--- a/arch/sparc/kernel/ebus.c
+++ b/arch/sparc/kernel/ebus.c
@@ -101,7 +101,7 @@ void __init fill_ebus_child(struct device_node *dp,
                         prom_printf("UGH: property for %s was %d, need < %d\n",
                                     dev->prom_node->name, len,
                                     dev->parent->num_addrs);
-                        panic(__FUNCTION__);
+                        panic(__func__);
                 }
 
                 /* XXX resource */
@@ -162,7 +162,7 @@ void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *d
                 prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
                             dev->prom_node->name, len,
                             (int)sizeof(struct linux_prom_registers));
-                panic(__FUNCTION__);
+                panic(__func__);
         }
         dev->num_addrs = len / sizeof(struct linux_prom_registers);
 
@@ -324,7 +324,7 @@ void __init ebus_init(void)
                 regs = of_get_property(dp, "reg", &len);
                 if (!regs) {
                         prom_printf("%s: can't find reg property\n",
-                                    __FUNCTION__);
+                                    __func__);
                         prom_halt();
                 }
                 nreg = len / sizeof(struct linux_prom_pci_registers);
diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c
index 313d1620ae8e..59e9344e7a0d 100644
--- a/arch/sparc/kernel/led.c
+++ b/arch/sparc/kernel/led.c
@@ -3,6 +3,9 @@
 #include <linux/init.h>
 #include <linux/proc_fs.h>
 #include <linux/string.h>
+#include <linux/jiffies.h>
+#include <linux/timer.h>
+#include <linux/uaccess.h>
 
 #include <asm/auxio.h>
 
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c
index 0bd69d0b5cd7..70c0dd22491d 100644
--- a/arch/sparc/kernel/process.c
+++ b/arch/sparc/kernel/process.c
@@ -139,8 +139,6 @@ void cpu_idle(void)
 
 #endif
 
-extern char reboot_command [];
-
 /* XXX cli/sti -> local_irq_xxx here, check this works once SMP is fixed. */
 void machine_halt(void)
 {
diff --git a/arch/sparc/kernel/una_asm.S b/arch/sparc/kernel/una_asm.S
new file mode 100644
index 000000000000..8cc03458eb7e
--- /dev/null
+++ b/arch/sparc/kernel/una_asm.S
@@ -0,0 +1,153 @@
+/* una_asm.S: Kernel unaligned trap assembler helpers.
+ *
+ * Copyright (C) 1996,2005,2008 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+
+#include <linux/errno.h>
+
+        .text
+
+retl_efault:
+        retl
+         mov    -EFAULT, %o0
+
+        /* int __do_int_store(unsigned long *dst_addr, int size,
+         *                    unsigned long *src_val)
+         *
+         * %o0 = dest_addr
+         * %o1 = size
+         * %o2 = src_val
+         *
+         * Return '0' on success, -EFAULT on failure.
+         */
+        .globl  __do_int_store
+__do_int_store:
+        ld      [%o2], %g1
+        cmp     %1, 2
+        be      2f
+         cmp    %1, 4
+        be      1f
+         srl    %g1, 24, %g2
+        srl     %g1, 16, %g7
+4:      stb     %g2, [%o0]
+        srl     %g1, 8, %g2
+5:      stb     %g7, [%o0 + 1]
+        ld      [%o2 + 4], %g7
+6:      stb     %g2, [%o0 + 2]
+        srl     %g7, 24, %g2
+7:      stb     %g1, [%o0 + 3]
+        srl     %g7, 16, %g1
+8:      stb     %g2, [%o0 + 4]
+        srl     %g7, 8, %g2
+9:      stb     %g1, [%o0 + 5]
+10:     stb     %g2, [%o0 + 6]
+        b       0f
+11:      stb    %g7, [%o0 + 7]
+1:      srl     %g1, 16, %g7
+12:     stb     %g2, [%o0]
+        srl     %g1, 8, %g2
+13:     stb     %g7, [%o0 + 1]
+14:     stb     %g2, [%o0 + 2]
+        b       0f
+15:      stb    %g1, [%o0 + 3]
+2:      srl     %g1, 8, %g2
+16:     stb     %g2, [%o0]
+17:     stb     %g1, [%o0 + 1]
+0:      retl
+         mov    0, %o0
+
+        .section __ex_table,#alloc
+        .word   4b, retl_efault
+        .word   5b, retl_efault
+        .word   6b, retl_efault
+        .word   7b, retl_efault
+        .word   8b, retl_efault
+        .word   9b, retl_efault
+        .word   10b, retl_efault
+        .word   11b, retl_efault
+        .word   12b, retl_efault
+        .word   13b, retl_efault
+        .word   14b, retl_efault
+        .word   15b, retl_efault
+        .word   16b, retl_efault
+        .word   17b, retl_efault
+        .previous
+
+        /* int do_int_load(unsigned long *dest_reg, int size,
+         *                 unsigned long *saddr, int is_signed)
+         *
+         * %o0 = dest_reg
+         * %o1 = size
+         * %o2 = saddr
+         * %o3 = is_signed
+         *
+         * Return '0' on success, -EFAULT on failure.
+         */
+        .globl  do_int_load
+do_int_load:
+        cmp     %o1, 8
+        be      9f
+         cmp    %o1, 4
+        be      6f
+4:       ldub   [%o2], %g1
+5:      ldub    [%o2 + 1], %g2
+        sll     %g1, 8, %g1
+        tst     %o3
+        be      3f
+         or     %g1, %g2, %g1
+        sll     %g1, 16, %g1
+        sra     %g1, 16, %g1
+3:      b       0f
+         st     %g1, [%o0]
+6:      ldub    [%o2 + 1], %g2
+        sll     %g1, 24, %g1
+7:      ldub    [%o2 + 2], %g7
+        sll     %g2, 16, %g2
+8:      ldub    [%o2 + 3], %g3
+        sll     %g7, 8, %g7
+        or      %g3, %g2, %g3
+        or      %g7, %g3, %g7
+        or      %g1, %g7, %g1
+        b       0f
+         st     %g1, [%o0]
+9:      ldub    [%o2], %g1
+10:     ldub    [%o2 + 1], %g2
+        sll     %g1, 24, %g1
+11:     ldub    [%o2 + 2], %g7
+        sll     %g2, 16, %g2
+12:     ldub    [%o2 + 3], %g3
+        sll     %g7, 8, %g7
+        or      %g1, %g2, %g1
+        or      %g7, %g3, %g7
+        or      %g1, %g7, %g7
+13:     ldub    [%o2 + 4], %g1
+        st      %g7, [%o0]
+14:     ldub    [%o2 + 5], %g2
+        sll     %g1, 24, %g1
+15:     ldub    [%o2 + 6], %g7
+        sll     %g2, 16, %g2
+16:     ldub    [%o2 + 7], %g3
+        sll     %g7, 8, %g7
+        or      %g1, %g2, %g1
+        or      %g7, %g3, %g7
+        or      %g1, %g7, %g7
+        st      %g7, [%o0 + 4]
+0:      retl
+         mov    0, %o0
+
+        .section __ex_table,#alloc
+        .word   4b, retl_efault
+        .word   5b, retl_efault
+        .word   6b, retl_efault
+        .word   7b, retl_efault
+        .word   8b, retl_efault
+        .word   9b, retl_efault
+        .word   10b, retl_efault
+        .word   11b, retl_efault
+        .word   12b, retl_efault
+        .word   13b, retl_efault
+        .word   14b, retl_efault
+        .word   15b, retl_efault
+        .word   16b, retl_efault
+        .previous
diff --git a/arch/sparc/kernel/unaligned.c b/arch/sparc/kernel/unaligned.c
index a6330fbc9dd9..33857be16661 100644
--- a/arch/sparc/kernel/unaligned.c
+++ b/arch/sparc/kernel/unaligned.c
@@ -175,157 +175,31 @@ static void unaligned_panic(char *str)
         panic(str);
 }
 
-#define do_integer_load(dest_reg, size, saddr, is_signed, errh) ({              \
-__asm__ __volatile__ (                                                          \
-        "cmp    %1, 8\n\t"                                                      \
-        "be     9f\n\t"                                                         \
-        " cmp   %1, 4\n\t"                                                      \
-        "be     6f\n"                                                           \
-"4:\t"  " ldub  [%2], %%l1\n"                                                   \
-"5:\t"  "ldub   [%2 + 1], %%l2\n\t"                                             \
-        "sll    %%l1, 8, %%l1\n\t"                                              \
-        "tst    %3\n\t"                                                         \
-        "be     3f\n\t"                                                         \
-        " add   %%l1, %%l2, %%l1\n\t"                                           \
-        "sll    %%l1, 16, %%l1\n\t"                                             \
-        "sra    %%l1, 16, %%l1\n"                                               \
-"3:\t"  "b      0f\n\t"                                                         \
-        " st    %%l1, [%0]\n"                                                   \
-"6:\t"  "ldub   [%2 + 1], %%l2\n\t"                                             \
-        "sll    %%l1, 24, %%l1\n"                                               \
-"7:\t"  "ldub   [%2 + 2], %%g7\n\t"                                             \
-        "sll    %%l2, 16, %%l2\n"                                               \
-"8:\t"  "ldub   [%2 + 3], %%g1\n\t"                                             \
-        "sll    %%g7, 8, %%g7\n\t"                                              \
-        "or     %%l1, %%l2, %%l1\n\t"                                           \
-        "or     %%g7, %%g1, %%g7\n\t"                                           \
-        "or     %%l1, %%g7, %%l1\n\t"                                           \
-        "b      0f\n\t"                                                         \
-        " st    %%l1, [%0]\n"                                                   \
-"9:\t"  "ldub   [%2], %%l1\n"                                                   \
-"10:\t" "ldub   [%2 + 1], %%l2\n\t"                                             \
-        "sll    %%l1, 24, %%l1\n"                                               \
-"11:\t" "ldub   [%2 + 2], %%g7\n\t"                                             \
-        "sll    %%l2, 16, %%l2\n"                                               \
-"12:\t" "ldub   [%2 + 3], %%g1\n\t"                                             \
-        "sll    %%g7, 8, %%g7\n\t"                                              \
-        "or     %%l1, %%l2, %%l1\n\t"                                           \
-        "or     %%g7, %%g1, %%g7\n\t"                                           \
-        "or     %%l1, %%g7, %%g7\n"                                             \
-"13:\t" "ldub   [%2 + 4], %%l1\n\t"                                             \
-        "st     %%g7, [%0]\n"                                                   \
-"14:\t" "ldub   [%2 + 5], %%l2\n\t"                                             \
-        "sll    %%l1, 24, %%l1\n"                                               \
-"15:\t" "ldub   [%2 + 6], %%g7\n\t"                                             \
-        "sll    %%l2, 16, %%l2\n"                                               \
-"16:\t" "ldub   [%2 + 7], %%g1\n\t"                                             \
-        "sll    %%g7, 8, %%g7\n\t"                                              \
-        "or     %%l1, %%l2, %%l1\n\t"                                           \
-        "or     %%g7, %%g1, %%g7\n\t"                                           \
-        "or     %%l1, %%g7, %%g7\n\t"                                           \
-        "st     %%g7, [%0 + 4]\n"                                               \
-"0:\n\n\t"                                                                      \
-        ".section __ex_table,#alloc\n\t"                                        \
-        ".word  4b, " #errh "\n\t"                                              \
-        ".word  5b, " #errh "\n\t"                                              \
-        ".word  6b, " #errh "\n\t"                                              \
-        ".word  7b, " #errh "\n\t"                                              \
-        ".word  8b, " #errh "\n\t"                                              \
-        ".word  9b, " #errh "\n\t"                                              \
-        ".word  10b, " #errh "\n\t"                                             \
-        ".word  11b, " #errh "\n\t"                                             \
-        ".word  12b, " #errh "\n\t"                                             \
-        ".word  13b, " #errh "\n\t"                                             \
-        ".word  14b, " #errh "\n\t"                                             \
-        ".word  15b, " #errh "\n\t"                                             \
-        ".word  16b, " #errh "\n\n\t"                                           \
-        ".previous\n\t"                                                         \
-        : : "r" (dest_reg), "r" (size), "r" (saddr), "r" (is_signed)            \
-        : "l1", "l2", "g7", "g1", "cc");                                        \
-})
-        
-#define store_common(dst_addr, size, src_val, errh) ({                          \
-__asm__ __volatile__ (                                                          \
-        "ld     [%2], %%l1\n"                                                   \
-        "cmp    %1, 2\n\t"                                                      \
-        "be     2f\n\t"                                                         \
-        " cmp   %1, 4\n\t"                                                      \
-        "be     1f\n\t"                                                         \
-        " srl   %%l1, 24, %%l2\n\t"                                             \
-        "srl    %%l1, 16, %%g7\n"                                               \
-"4:\t"  "stb    %%l2, [%0]\n\t"                                                 \
-        "srl    %%l1, 8, %%l2\n"                                                \
-"5:\t"  "stb    %%g7, [%0 + 1]\n\t"                                             \
-        "ld     [%2 + 4], %%g7\n"                                               \
-"6:\t"  "stb    %%l2, [%0 + 2]\n\t"                                             \
-        "srl    %%g7, 24, %%l2\n"                                               \
-"7:\t"  "stb    %%l1, [%0 + 3]\n\t"                                             \
-        "srl    %%g7, 16, %%l1\n"                                               \
-"8:\t"  "stb    %%l2, [%0 + 4]\n\t"                                             \
-        "srl    %%g7, 8, %%l2\n"                                                \
-"9:\t"  "stb    %%l1, [%0 + 5]\n"                                               \
-"10:\t" "stb    %%l2, [%0 + 6]\n\t"                                             \
-        "b      0f\n"                                                           \
-"11:\t" " stb   %%g7, [%0 + 7]\n"                                               \
-"1:\t"  "srl    %%l1, 16, %%g7\n"                                               \
-"12:\t" "stb    %%l2, [%0]\n\t"                                                 \
-        "srl    %%l1, 8, %%l2\n"                                                \
-"13:\t" "stb    %%g7, [%0 + 1]\n"                                               \
-"14:\t" "stb    %%l2, [%0 + 2]\n\t"                                             \
-        "b      0f\n"                                                           \
-"15:\t" " stb   %%l1, [%0 + 3]\n"                                               \
-"2:\t"  "srl    %%l1, 8, %%l2\n"                                                \
-"16:\t" "stb    %%l2, [%0]\n"                                                   \
-"17:\t" "stb    %%l1, [%0 + 1]\n"                                               \
-"0:\n\n\t"                                                                      \
-        ".section __ex_table,#alloc\n\t"                                        \
-        ".word  4b, " #errh "\n\t"                                              \
-        ".word  5b, " #errh "\n\t"                                              \
-        ".word  6b, " #errh "\n\t"                                              \
-        ".word  7b, " #errh "\n\t"                                              \
-        ".word  8b, " #errh "\n\t"                                              \
-        ".word  9b, " #errh "\n\t"                                              \
-        ".word  10b, " #errh "\n\t"                                             \
-        ".word  11b, " #errh "\n\t"                                             \
-        ".word  12b, " #errh "\n\t"                                             \
-        ".word  13b, " #errh "\n\t"                                             \
-        ".word  14b, " #errh "\n\t"                                             \
-        ".word  15b, " #errh "\n\t"                                             \
-        ".word  16b, " #errh "\n\t"                                             \
-        ".word  17b, " #errh "\n\n\t"                                           \
-        ".previous\n\t"                                                         \
-        : : "r" (dst_addr), "r" (size), "r" (src_val)                           \
-        : "l1", "l2", "g7", "g1", "cc");                                        \
-})
-
-#define do_integer_store(reg_num, size, dst_addr, regs, errh) ({                \
-        unsigned long *src_val;                                                 \
-        static unsigned long zero[2] = { 0, };                                  \
-                                                                                \
-        if (reg_num) src_val = fetch_reg_addr(reg_num, regs);                   \
-        else {                                                                  \
-                src_val = &zero[0];                                             \
-                if (size == 8)                                                  \
-                        zero[1] = fetch_reg(1, regs);                           \
-        }                                                                       \
-        store_common(dst_addr, size, src_val, errh);                            \
-})
+/* una_asm.S */
+extern int do_int_load(unsigned long *dest_reg, int size,
+                       unsigned long *saddr, int is_signed);
+extern int __do_int_store(unsigned long *dst_addr, int size,
+                          unsigned long *src_val);
+
+static int do_int_store(int reg_num, int size, unsigned long *dst_addr,
+                        struct pt_regs *regs)
+{
+        unsigned long zero[2] = { 0, 0 };
+        unsigned long *src_val;
+
+        if (reg_num)
+                src_val = fetch_reg_addr(reg_num, regs);
+        else {
+                src_val = &zero[0];
+                if (size == 8)
+                        zero[1] = fetch_reg(1, regs);
+        }
+        return __do_int_store(dst_addr, size, src_val);
+}
 
 extern void smp_capture(void);
 extern void smp_release(void);
 
-#define do_atomic(srcdest_reg, mem, errh) ({                                    \
-        unsigned long flags, tmp;                                               \
-                                                                                \
-        smp_capture();                                                          \
-        local_irq_save(flags);                                                  \
-        tmp = *srcdest_reg;                                                     \
-        do_integer_load(srcdest_reg, 4, mem, 0, errh);                          \
-        store_common(mem, 4, &tmp, errh);                                       \
-        local_irq_restore(flags);                                               \
-        smp_release();                                                          \
-})
-
 static inline void advance(struct pt_regs *regs)
 {
         regs->pc   = regs->npc;
@@ -342,9 +216,7 @@ static inline int ok_for_kernel(unsigned int insn)
         return !floating_point_load_or_store_p(insn);
 }
 
-void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn) __asm__ ("kernel_mna_trap_fault");
-
-void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn)
+static void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn)
 {
         unsigned long g2 = regs->u_regs [UREG_G2];
         unsigned long fixup = search_extables_range(regs->pc, &g2);
@@ -379,48 +251,34 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
                 printk("Unsupported unaligned load/store trap for kernel at <%08lx>.\n",
                        regs->pc);
                 unaligned_panic("Wheee. Kernel does fpu/atomic unaligned load/store.");
-
-                __asm__ __volatile__ ("\n"
-"kernel_unaligned_trap_fault:\n\t"
-                "mov    %0, %%o0\n\t"
-                "call   kernel_mna_trap_fault\n\t"
-                " mov   %1, %%o1\n\t"
-                :
-                : "r" (regs), "r" (insn)
-                : "o0", "o1", "o2", "o3", "o4", "o5", "o7",
-                  "g1", "g2", "g3", "g4", "g5", "g7", "cc");
         } else {
                 unsigned long addr = compute_effective_address(regs, insn);
+                int err;
 
 #ifdef DEBUG_MNA
                 printk("KMNA: pc=%08lx [dir=%s addr=%08lx size=%d] retpc[%08lx]\n",
                        regs->pc, dirstrings[dir], addr, size, regs->u_regs[UREG_RETPC]);
 #endif
-                switch(dir) {
+                switch (dir) {
                 case load:
-                        do_integer_load(fetch_reg_addr(((insn>>25)&0x1f), regs),
-                                        size, (unsigned long *) addr,
-                                        decode_signedness(insn),
-                                        kernel_unaligned_trap_fault);
+                        err = do_int_load(fetch_reg_addr(((insn>>25)&0x1f),
+                                                         regs),
+                                          size, (unsigned long *) addr,
+                                          decode_signedness(insn));
                         break;
 
                 case store:
-                        do_integer_store(((insn>>25)&0x1f), size,
-                                         (unsigned long *) addr, regs,
-                                         kernel_unaligned_trap_fault);
+                        err = do_int_store(((insn>>25)&0x1f), size,
+                                           (unsigned long *) addr, regs);
                         break;
-#if 0 /* unsupported */
-                case both:
-                        do_atomic(fetch_reg_addr(((insn>>25)&0x1f), regs),
-                                  (unsigned long *) addr,
-                                  kernel_unaligned_trap_fault);
-                        break;
-#endif
                 default:
                         panic("Impossible kernel unaligned trap.");
                         /* Not reached... */
                 }
-                advance(regs);
+                if (err)
+                        kernel_mna_trap_fault(regs, insn);
+                else
+                        advance(regs);
         }
 }
 
@@ -459,9 +317,7 @@ static inline int ok_for_user(struct pt_regs *regs, unsigned int insn,
         return 0;
 }
 
-void user_mna_trap_fault(struct pt_regs *regs, unsigned int insn) __asm__ ("user_mna_trap_fault");
-
-void user_mna_trap_fault(struct pt_regs *regs, unsigned int insn)
+static void user_mna_trap_fault(struct pt_regs *regs, unsigned int insn)
 {
         siginfo_t info;
 
@@ -485,7 +341,7 @@ asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn)
         if(!ok_for_user(regs, insn, dir)) {
                 goto kill_user;
         } else {
-                int size = decode_access_size(insn);
+                int err, size = decode_access_size(insn);
                 unsigned long addr;
 
                 if(floating_point_load_or_store_p(insn)) {
@@ -496,48 +352,34 @@ asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn)
                 addr = compute_effective_address(regs, insn);
                 switch(dir) {
                 case load:
-                        do_integer_load(fetch_reg_addr(((insn>>25)&0x1f), regs),
-                                        size, (unsigned long *) addr,
-                                        decode_signedness(insn),
-                                        user_unaligned_trap_fault);
+                        err = do_int_load(fetch_reg_addr(((insn>>25)&0x1f),
+                                                         regs),
+                                          size, (unsigned long *) addr,
+                                          decode_signedness(insn));
                         break;
 
                 case store:
-                        do_integer_store(((insn>>25)&0x1f), size,
-                                         (unsigned long *) addr, regs,
-                                         user_unaligned_trap_fault);
+                        err = do_int_store(((insn>>25)&0x1f), size,
+                                           (unsigned long *) addr, regs);
                         break;
 
                 case both:
-#if 0 /* unsupported */
-                        do_atomic(fetch_reg_addr(((insn>>25)&0x1f), regs),
-                                  (unsigned long *) addr,
-                                  user_unaligned_trap_fault);
-#else
                         /*
                          * This was supported in 2.4. However, we question
                          * the value of SWAP instruction across word boundaries.
                          */
                         printk("Unaligned SWAP unsupported.\n");
-                        goto kill_user;
-#endif
+                        err = -EFAULT;
                         break;
 
                 default:
                         unaligned_panic("Impossible user unaligned trap.");
-
-                        __asm__ __volatile__ ("\n"
-"user_unaligned_trap_fault:\n\t"
-                        "mov    %0, %%o0\n\t"
-                        "call   user_mna_trap_fault\n\t"
-                        " mov   %1, %%o1\n\t"
-                        :
-                        : "r" (regs), "r" (insn)
-                        : "o0", "o1", "o2", "o3", "o4", "o5", "o7",
-                          "g1", "g2", "g3", "g4", "g5", "g7", "cc");
                         goto out;
                 }
-                advance(regs);
+                if (err)
+                        goto kill_user;
+                else
+                        advance(regs);
                 goto out;
         }
 
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index 3af378ddb6ae..463d1be32c98 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -10,6 +10,7 @@ config SPARC
         default y
         select HAVE_OPROFILE
         select HAVE_KPROBES
+        select HAVE_KRETPROBES
 
 config SPARC64
         bool
diff --git a/arch/sparc64/kernel/cpu.c b/arch/sparc64/kernel/cpu.c
index e43db73f2b91..dd5d28e3d798 100644
--- a/arch/sparc64/kernel/cpu.c
+++ b/arch/sparc64/kernel/cpu.c
@@ -30,7 +30,7 @@ struct cpu_fp_info {
   char* fp_name;
 };
 
-struct cpu_fp_info linux_sparc_fpu[] = {
+static struct cpu_fp_info linux_sparc_fpu[] = {
   { 0x17, 0x10, 0, "UltraSparc I integrated FPU"},
   { 0x22, 0x10, 0, "UltraSparc I integrated FPU"},
   { 0x17, 0x11, 0, "UltraSparc II integrated FPU"},
@@ -46,7 +46,7 @@ struct cpu_fp_info linux_sparc_fpu[] = {
 
 #define NSPARCFPU  ARRAY_SIZE(linux_sparc_fpu)
 
-struct cpu_iu_info linux_sparc_chips[] = {
+static struct cpu_iu_info linux_sparc_chips[] = {
   { 0x17, 0x10, "TI UltraSparc I   (SpitFire)"},
   { 0x22, 0x10, "TI UltraSparc I   (SpitFire)"},
   { 0x17, 0x11, "TI UltraSparc II  (BlackBird)"},
diff --git a/arch/sparc64/kernel/ds.c b/arch/sparc64/kernel/ds.c
index eeb5a2fc788d..bd76482077be 100644
--- a/arch/sparc64/kernel/ds.c
+++ b/arch/sparc64/kernel/ds.c
@@ -525,10 +525,10 @@ static void dr_cpu_mark(struct ds_data *resp, int cpu, int ncpus,
         }
 }
 
-static int dr_cpu_configure(struct ds_info *dp,
-                            struct ds_cap_state *cp,
-                            u64 req_num,
-                            cpumask_t *mask)
+static int __cpuinit dr_cpu_configure(struct ds_info *dp,
+                                      struct ds_cap_state *cp,
+                                      u64 req_num,
+                                      cpumask_t *mask)
 {
         struct ds_data *resp;
         int resp_len, ncpus, cpu;
@@ -623,9 +623,9 @@ static int dr_cpu_unconfigure(struct ds_info *dp,
         return 0;
 }
 
-static void dr_cpu_data(struct ds_info *dp,
-                        struct ds_cap_state *cp,
-                        void *buf, int len)
+static void __cpuinit dr_cpu_data(struct ds_info *dp,
+                                  struct ds_cap_state *cp,
+                                  void *buf, int len)
 {
         struct ds_data *data = buf;
         struct dr_cpu_tag *tag = (struct dr_cpu_tag *) (data + 1);
diff --git a/arch/sparc64/kernel/mdesc.c b/arch/sparc64/kernel/mdesc.c
index 856659bb1311..910083589569 100644
--- a/arch/sparc64/kernel/mdesc.c
+++ b/arch/sparc64/kernel/mdesc.c
@@ -758,7 +758,7 @@ static void __devinit get_mondo_data(struct mdesc_handle *hp, u64 mp,
         get_one_mondo_bits(val, &tb->nonresum_qmask, 2);
 }
 
-void __devinit mdesc_fill_in_cpu_data(cpumask_t mask)
+void __cpuinit mdesc_fill_in_cpu_data(cpumask_t mask)
 {
         struct mdesc_handle *hp = mdesc_grab();
         u64 mp;
diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 2aafce7dfc0e..e116e38b160e 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -114,8 +114,6 @@ void cpu_idle(void)
         }
 }
 
-extern char reboot_command [];
-
 void machine_halt(void)
 {
         sstate_halt();
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c
index e2027f27c0fe..2650d0d33ac2 100644
--- a/arch/sparc64/mm/fault.c
+++ b/arch/sparc64/mm/fault.c
@@ -244,16 +244,8 @@ static void do_kernel_fault(struct pt_regs *regs, int si_code, int fault_code,
         if (regs->tstate & TSTATE_PRIV) {
                 const struct exception_table_entry *entry;
 
-                if (asi == ASI_P && (insn & 0xc0800000) == 0xc0800000) {
-                        if (insn & 0x2000)
-                                asi = (regs->tstate >> 24);
-                        else
-                                asi = (insn >> 5);
-                }
-        
-                /* Look in asi.h: All _S asis have LS bit set */
-                if ((asi & 0x1) &&
-                    (entry = search_exception_tables(regs->tpc))) {
+                entry = search_exception_tables(regs->tpc);
+                if (entry) {
                         regs->tpc = entry->fixup;
                         regs->tnpc = regs->tpc + 4;
                         return;
@@ -294,7 +286,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
                 unsigned long tpc = regs->tpc;
 
                 /* Sanity check the PC. */
-                if ((tpc >= KERNBASE && tpc < (unsigned long) _etext) ||
+                if ((tpc >= KERNBASE && tpc < (unsigned long) __init_end) ||
                     (tpc >= MODULES_VADDR && tpc < MODULES_END)) {
                         /* Valid, no problems... */
                 } else {
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 9e6bca266d88..b5c30416fdac 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -1010,7 +1010,8 @@ static struct linux_prom64_registers pall[MAX_BANKS] __initdata;
 static int pall_ents __initdata;
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
-static unsigned long kernel_map_range(unsigned long pstart, unsigned long pend, pgprot_t prot)
+static unsigned long __ref kernel_map_range(unsigned long pstart,
+                                            unsigned long pend, pgprot_t prot)
 {
         unsigned long vstart = PAGE_OFFSET + pstart;
         unsigned long vend = PAGE_OFFSET + pend;
diff --git a/arch/sparc64/solaris/conv.h b/arch/sparc64/solaris/conv.h
index 5faf59a9de39..50e58232cf2b 100644
--- a/arch/sparc64/solaris/conv.h
+++ b/arch/sparc64/solaris/conv.h
@@ -28,7 +28,7 @@ extern unsigned sunos_sys_table[];
 #define SUNOS(x) ((long)sunos_sys_table[x])
 
 #ifdef DEBUG_SOLARIS
-#define SOLD(s) printk("%s,%d,%s(): %s\n",__FILE__,__LINE__,__FUNCTION__,(s))
+#define SOLD(s) printk("%s,%d,%s(): %s\n",__FILE__,__LINE__,__func__,(s))
 #define SOLDD(s) printk("solaris: "); printk s
 #else
 #define SOLD(s)
diff --git a/arch/sparc64/solaris/timod.c b/arch/sparc64/solaris/timod.c
index f53123c02c2b..15234fcd191a 100644
--- a/arch/sparc64/solaris/timod.c
+++ b/arch/sparc64/solaris/timod.c
@@ -81,7 +81,7 @@ void mykfree(void *p)
 #define MKCTL_MAGIC     0xDEADBABEBADC0DEDL
 #define PUT_MAGIC(a,m)  do{(*(u64*)(a))=(m);}while(0)
 #define SCHECK_MAGIC(a,m)       do{if((*(u64*)(a))!=(m))printk("%s,%u,%s(): magic %08x at %p corrupted!\n",\
-                                __FILE__,__LINE__,__FUNCTION__,(m),(a));}while(0)
+                                __FILE__,__LINE__,__func__,(m),(a));}while(0)
 #define BUF_OFFSET      sizeof(u64)
 #define MKCTL_TRAILER   sizeof(u64)
 
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index fc50d2f959d1..e8cb9ff183e9 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -128,8 +128,6 @@ void *get_current(void)
         return current;
 }
 
-extern void schedule_tail(struct task_struct *prev);
-
 /*
  * This is called magically, by its address being stuffed in a jmp_buf
  * and being longjmp-d to.
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4a88cf7695b4..f41c9538ca30 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -21,7 +21,8 @@ config X86
         select HAVE_IDE
         select HAVE_OPROFILE
         select HAVE_KPROBES
-        select HAVE_KVM
+        select HAVE_KRETPROBES
+        select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
 
 
 config GENERIC_LOCKBREAK
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index e09a6b73a1aa..9304bfba7d45 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -377,6 +377,19 @@ config X86_OOSTORE
         def_bool y
         depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR
 
+#
+# P6_NOPs are a relatively minor optimization that require a family >=
+# 6 processor, except that it is broken on certain VIA chips.
+# Furthermore, AMD chips prefer a totally different sequence of NOPs
+# (which work on all CPUs).  As a result, disallow these if we're
+# compiling X86_GENERIC but not X86_64 (these NOPs do work on all
+# x86-64 capable chips); the list of processors in the right-hand clause
+# are the cores that benefit from this optimization.
+#
+config X86_P6_NOP
+        def_bool y
+        depends on (X86_64 || !X86_GENERIC) && (M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MPENTIUM4)
+
 config X86_TSC
         def_bool y
         depends on ((MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2) && !X86_NUMAQ) || X86_64
@@ -390,6 +403,7 @@ config X86_CMOV
 config X86_MINIMUM_CPU_FAMILY
         int
         default "64" if X86_64
+        default "6" if X86_32 && X86_P6_NOP
         default "4" if X86_32 && (X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK)
         default "3"
 
diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
index 378353956b5d..e77d89f9e8aa 100644
--- a/arch/x86/boot/memory.c
+++ b/arch/x86/boot/memory.c
@@ -37,6 +37,12 @@ static int detect_memory_e820(void)
                       "=m" (*desc)
                     : "D" (desc), "d" (SMAP), "a" (0xe820));
 
+                /* BIOSes which terminate the chain with CF = 1 as opposed
+                   to %ebx = 0 don't always report the SMAP signature on
+                   the final, failing, probe. */
+                if (err)
+                        break;
+
                 /* Some BIOSes stop returning SMAP in the middle of
                    the search loop.  We don't know exactly how the BIOS
                    screwed up the map at that point, we might have a
@@ -47,9 +53,6 @@ static int detect_memory_e820(void)
                         break;
                 }
 
-                if (err)
-                        break;
-
                 count++;
                 desc++;
         } while (next && count < E820MAX);
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index a33d53017997..8ea040124f7d 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -128,13 +128,11 @@ void foo(void)
         OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending);
 #endif
 
-#ifdef CONFIG_LGUEST_GUEST
+#if defined(CONFIG_LGUEST) || defined(CONFIG_LGUEST_GUEST) || defined(CONFIG_LGUEST_MODULE)
         BLANK();
         OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled);
         OFFSET(LGUEST_DATA_pgdir, lguest_data, pgdir);
-#endif
 
-#ifdef CONFIG_LGUEST
         BLANK();
         OFFSET(LGUEST_PAGES_host_gdt_desc, lguest_pages, state.host_gdt_desc);
         OFFSET(LGUEST_PAGES_host_idt_desc, lguest_pages, state.host_idt_desc);
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index f86a3c4a2669..a38aafaefc23 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -504,7 +504,7 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 
         /* Clear all flags overriden by options */
         for (i = 0; i < NCAPINTS; i++)
-                c->x86_capability[i] ^= cleared_cpu_caps[i];
+                c->x86_capability[i] &= ~cleared_cpu_caps[i];
 
         /* Init Machine Check Exception if available. */
         mcheck_init(c);
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index b6e136f23d3d..be83336fddba 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -43,6 +43,7 @@
 #include <asm/uaccess.h>
 #include <asm/processor.h>
 #include <asm/msr.h>
+#include <asm/kvm_para.h>
 #include "mtrr.h"
 
 u32 num_var_ranges = 0;
@@ -649,6 +650,7 @@ static __init int amd_special_default_mtrr(void)
 
 /**
  * mtrr_trim_uncached_memory - trim RAM not covered by MTRRs
+ * @end_pfn: ending page frame number
  *
  * Some buggy BIOSes don't setup the MTRRs properly for systems with certain
  * memory configurations.  This routine checks that the highest MTRR matches
@@ -688,8 +690,11 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
 
         /* kvm/qemu doesn't have mtrr set right, don't trim them all */
         if (!highest_pfn) {
-                printk(KERN_WARNING "WARNING: strange, CPU MTRRs all blank?\n");
-                WARN_ON(1);
+                if (!kvm_para_available()) {
+                        printk(KERN_WARNING
+                                "WARNING: strange, CPU MTRRs all blank?\n");
+                        WARN_ON(1);
+                }
                 return 0;
         }
 
diff --git a/arch/x86/kernel/cpu/transmeta.c b/arch/x86/kernel/cpu/transmeta.c
index 200fb3f9ebfb..e8b422c1c512 100644
--- a/arch/x86/kernel/cpu/transmeta.c
+++ b/arch/x86/kernel/cpu/transmeta.c
@@ -76,13 +76,6 @@ static void __cpuinit init_transmeta(struct cpuinfo_x86 *c)
         /* All Transmeta CPUs have a constant TSC */
         set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
         
-        /* If we can run i686 user-space code, call us an i686 */
-#define USER686 ((1 << X86_FEATURE_TSC)|\
-                 (1 << X86_FEATURE_CX8)|\
-                 (1 << X86_FEATURE_CMOV))
-        if (c->x86 == 5 && (c->x86_capability[0] & USER686) == USER686)
-                c->x86 = 6;
-
 #ifdef CONFIG_SYSCTL
         /* randomize_va_space slows us down enormously;
            it probably triggers retranslation of x86->native bytecode */
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 2ad9a1bc6a73..c20c9e7e08dd 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -453,6 +453,7 @@ ENTRY(stub_execve)
         CFI_REGISTER rip, r11
         SAVE_REST
         FIXUP_TOP_OF_STACK %r11
+        movq %rsp, %rcx
         call sys_execve
         RESTORE_TOP_OF_STACK %r11
         movq %rax,RAX(%rsp)
@@ -1036,15 +1037,16 @@ ENDPROC(child_rip)
  *      rdi: name, rsi: argv, rdx: envp
  *
  * We want to fallback into:
- *      extern long sys_execve(char *name, char **argv,char **envp, struct pt_regs regs)
+ *      extern long sys_execve(char *name, char **argv,char **envp, struct pt_regs *regs)
  *
  * do_sys_execve asm fallback arguments:
- *      rdi: name, rsi: argv, rdx: envp, fake frame on the stack
+ *      rdi: name, rsi: argv, rdx: envp, rcx: fake frame on the stack
  */
 ENTRY(kernel_execve)
         CFI_STARTPROC
         FAKE_STACK_FRAME $0
         SAVE_ALL        
+        movq %rsp,%rcx
         call sys_execve
         movq %rax, RAX(%rsp)    
         RESTORE_REST
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 25eb98540a41..fd8ca53943a8 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -606,7 +606,7 @@ ENTRY(_stext)
 .section ".bss.page_aligned","wa"
         .align PAGE_SIZE_asm
 #ifdef CONFIG_X86_PAE
-ENTRY(swapper_pg_pmd)
+swapper_pg_pmd:
         .fill 1024*KPMDS,4,0
 #else
 ENTRY(swapper_pg_dir)
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index eb415043a929..a007454133a3 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -379,18 +379,24 @@ NEXT_PAGE(level2_ident_pgt)
         /* Since I easily can, map the first 1G.
          * Don't set NX because code runs from these pages.
          */
-        PMDS(0x0000000000000000, __PAGE_KERNEL_LARGE_EXEC, PTRS_PER_PMD)
+        PMDS(0, __PAGE_KERNEL_LARGE_EXEC, PTRS_PER_PMD)
 
 NEXT_PAGE(level2_kernel_pgt)
-        /* 40MB kernel mapping. The kernel code cannot be bigger than that.
-           When you change this change KERNEL_TEXT_SIZE in page.h too. */
-        /* (2^48-(2*1024*1024*1024)-((2^39)*511)-((2^30)*510)) = 0 */
-        PMDS(0x0000000000000000, __PAGE_KERNEL_LARGE_EXEC|_PAGE_GLOBAL, KERNEL_TEXT_SIZE/PMD_SIZE)
-        /* Module mapping starts here */
-        .fill   (PTRS_PER_PMD - (KERNEL_TEXT_SIZE/PMD_SIZE)),8,0
+        /*
+         * 128 MB kernel mapping. We spend a full page on this pagetable
+         * anyway.
+         *
+         * The kernel code+data+bss must not be bigger than that.
+         *
+         * (NOTE: at +128MB starts the module area, see MODULES_VADDR.
+         *  If you want to increase this then increase MODULES_VADDR
+         *  too.)
+         */
+        PMDS(0, __PAGE_KERNEL_LARGE_EXEC|_PAGE_GLOBAL,
+                KERNEL_IMAGE_SIZE/PMD_SIZE)
 
 NEXT_PAGE(level2_spare_pgt)
-        .fill   512,8,0
+        .fill   512, 8, 0
 
 #undef PMDS
 #undef NEXT_PAGE
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 429d084e014d..235fd6c77504 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -368,8 +368,8 @@ static int hpet_clocksource_register(void)
         return 0;
 }
 
-/*
- * Try to setup the HPET timer
+/**
+ * hpet_enable - Try to setup the HPET timer. Returns 1 on success.
  */
 int __init hpet_enable(void)
 {
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index 763dfc407232..60fe80157569 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -132,7 +132,7 @@ int xfpregs_get(struct task_struct *target, const struct user_regset *regset,
         if (!cpu_has_fxsr)
                 return -ENODEV;
 
-        unlazy_fpu(target);
+        init_fpu(target);
 
         return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
                                    &target->thread.i387.fxsave, 0, -1);
@@ -147,7 +147,7 @@ int xfpregs_set(struct task_struct *target, const struct user_regset *regset,
         if (!cpu_has_fxsr)
                 return -ENODEV;
 
-        unlazy_fpu(target);
+        init_fpu(target);
         set_stopped_child_used_math(target);
 
         ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
@@ -307,7 +307,7 @@ int fpregs_get(struct task_struct *target, const struct user_regset *regset,
         if (!HAVE_HWFP)
                 return fpregs_soft_get(target, regset, pos, count, kbuf, ubuf);
 
-        unlazy_fpu(target);
+        init_fpu(target);
 
         if (!cpu_has_fxsr)
                 return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
@@ -332,7 +332,7 @@ int fpregs_set(struct task_struct *target, const struct user_regset *regset,
         if (!HAVE_HWFP)
                 return fpregs_soft_set(target, regset, pos, count, kbuf, ubuf);
 
-        unlazy_fpu(target);
+        init_fpu(target);
         set_stopped_child_used_math(target);
 
         if (!cpu_has_fxsr)
diff --git a/arch/x86/kernel/init_task.c b/arch/x86/kernel/init_task.c
index 5b3ce7934363..3d01e47777db 100644
--- a/arch/x86/kernel/init_task.c
+++ b/arch/x86/kernel/init_task.c
@@ -15,6 +15,7 @@ static struct files_struct init_files = INIT_FILES;
 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
 struct mm_struct init_mm = INIT_MM(init_mm);
+EXPORT_UNUSED_SYMBOL(init_mm); /* will be removed in 2.6.26 */
 
 /*
  * Initial thread structure.
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index a7d50a547dc2..be3c7a299f02 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -603,11 +603,13 @@ __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
         }
 #endif
 
+#ifdef X86_BTS
         if (test_tsk_thread_flag(prev_p, TIF_BTS_TRACE_TS))
                 ptrace_bts_take_timestamp(prev_p, BTS_TASK_DEPARTS);
 
         if (test_tsk_thread_flag(next_p, TIF_BTS_TRACE_TS))
                 ptrace_bts_take_timestamp(next_p, BTS_TASK_ARRIVES);
+#endif
 
 
         if (!test_tsk_thread_flag(next_p, TIF_IO_BITMAP)) {
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index b0cc8f0136d8..3baf9b9f4c87 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -604,11 +604,13 @@ static inline void __switch_to_xtra(struct task_struct *prev_p,
                 memset(tss->io_bitmap, 0xff, prev->io_bitmap_max);
         }
 
+#ifdef X86_BTS
         if (test_tsk_thread_flag(prev_p, TIF_BTS_TRACE_TS))
                 ptrace_bts_take_timestamp(prev_p, BTS_TASK_DEPARTS);
 
         if (test_tsk_thread_flag(next_p, TIF_BTS_TRACE_TS))
                 ptrace_bts_take_timestamp(next_p, BTS_TASK_ARRIVES);
+#endif
 }
 
 /*
@@ -730,16 +732,16 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
  */
 asmlinkage
 long sys_execve(char __user *name, char __user * __user *argv,
-                char __user * __user *envp, struct pt_regs regs)
+                char __user * __user *envp, struct pt_regs *regs)
 {
         long error;
         char * filename;
 
         filename = getname(name);
         error = PTR_ERR(filename);
-        if (IS_ERR(filename)) 
+        if (IS_ERR(filename))
                 return error;
-        error = do_execve(filename, argv, envp, &regs); 
+        error = do_execve(filename, argv, envp, regs);
         putname(filename);
         return error;
 }
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index d862e396b099..f41fdc98efb1 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -544,6 +544,8 @@ static int ptrace_set_debugreg(struct task_struct *child,
         return 0;
 }
 
+#ifdef X86_BTS
+
 static int ptrace_bts_get_size(struct task_struct *child)
 {
         if (!child->thread.ds_area_msr)
@@ -826,6 +828,7 @@ void ptrace_bts_take_timestamp(struct task_struct *tsk,
 
         ptrace_bts_write_record(tsk, &rec);
 }
+#endif /* X86_BTS */
 
 /*
  * Called by kernel/ptrace.c when detaching..
@@ -839,7 +842,9 @@ void ptrace_disable(struct task_struct *child)
         clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
 #endif
         if (child->thread.ds_area_msr) {
+#ifdef X86_BTS
                 ptrace_bts_realloc(child, 0, 0);
+#endif
                 child->thread.debugctlmsr &= ~ds_debugctl_mask();
                 if (!child->thread.debugctlmsr)
                         clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
@@ -961,6 +966,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 break;
 #endif
 
+        /*
+         * These bits need more cooking - not enabled yet:
+         */
+#ifdef X86_BTS
         case PTRACE_BTS_CONFIG:
                 ret = ptrace_bts_config
                         (child, data, (struct ptrace_bts_config __user *)addr);
@@ -988,6 +997,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 ret = ptrace_bts_drain
                         (child, data, (struct bts_struct __user *) addr);
                 break;
+#endif
 
         default:
                 ret = ptrace_request(child, request, addr, data);
@@ -1226,12 +1236,14 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
         case PTRACE_SETOPTIONS:
         case PTRACE_SET_THREAD_AREA:
         case PTRACE_GET_THREAD_AREA:
+#ifdef X86_BTS
         case PTRACE_BTS_CONFIG:
         case PTRACE_BTS_STATUS:
         case PTRACE_BTS_SIZE:
         case PTRACE_BTS_GET:
         case PTRACE_BTS_CLEAR:
         case PTRACE_BTS_DRAIN:
+#endif
                 return sys_ptrace(request, pid, addr, data);
 
         default:
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 6fd804f07821..7637dc91c79b 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -1021,7 +1021,7 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 
         /* Clear all flags overriden by options */
         for (i = 0; i < NCAPINTS; i++)
-                c->x86_capability[i] ^= cleared_cpu_caps[i];
+                c->x86_capability[i] &= ~cleared_cpu_caps[i];
 
 #ifdef CONFIG_X86_MCE
         mcheck_init(c);
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index d53bd6fcb428..0880f2c388a9 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -554,10 +554,10 @@ static int __cpuinit do_boot_cpu(int cpu, int apicid)
         int timeout;
         unsigned long start_rip;
         struct create_idle c_idle = {
-                .work = __WORK_INITIALIZER(c_idle.work, do_fork_idle),
                 .cpu = cpu,
                 .done = COMPLETION_INITIALIZER_ONSTACK(c_idle.done),
         };
+        INIT_WORK(&c_idle.work, do_fork_idle);
 
         /* allocate memory for gdts of secondary cpus. Hotplug is considered */
         if (!cpu_gdt_descr[cpu].address &&
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 02f0f61f5b11..c28c342c162f 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -25,6 +25,8 @@ static int save_stack_stack(void *data, char *name)
 static void save_stack_address(void *data, unsigned long addr, int reliable)
 {
         struct stack_trace *trace = data;
+        if (!reliable)
+                return;
         if (trace->skip > 0) {
                 trace->skip--;
                 return;
@@ -37,6 +39,8 @@ static void
 save_stack_address_nosched(void *data, unsigned long addr, int reliable)
 {
         struct stack_trace *trace = (struct stack_trace *)data;
+        if (!reliable)
+                return;
         if (in_sched_functions(addr))
                 return;
         if (trace->skip > 0) {
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 6dfd4e76661a..022bcaa3b42e 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -91,7 +91,9 @@ int do_set_thread_area(struct task_struct *p, int idx,
 
 asmlinkage int sys_set_thread_area(struct user_desc __user *u_info)
 {
-        return do_set_thread_area(current, -1, u_info, 1);
+        int ret = do_set_thread_area(current, -1, u_info, 1);
+        prevent_tail_call(ret);
+        return ret;
 }
 
 
@@ -139,7 +141,9 @@ int do_get_thread_area(struct task_struct *p, int idx,
 
 asmlinkage int sys_get_thread_area(struct user_desc __user *u_info)
 {
-        return do_get_thread_area(current, -1, u_info);
+        int ret = do_get_thread_area(current, -1, u_info);
+        prevent_tail_call(ret);
+        return ret;
 }
 
 int regset_tls_active(struct task_struct *target,
diff --git a/arch/x86/kernel/tsc_32.c b/arch/x86/kernel/tsc_32.c
index 43517e324be8..f14cfd9d1f94 100644
--- a/arch/x86/kernel/tsc_32.c
+++ b/arch/x86/kernel/tsc_32.c
@@ -28,7 +28,8 @@ EXPORT_SYMBOL_GPL(tsc_khz);
 static int __init tsc_setup(char *str)
 {
         printk(KERN_WARNING "notsc: Kernel compiled with CONFIG_X86_TSC, "
-                                "cannot disable TSC.\n");
+                                "cannot disable TSC completely.\n");
+        mark_tsc_unstable("user disabled TSC");
         return 1;
 }
 #else
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 3f8242774580..edff4c985485 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -44,11 +44,6 @@
 
 #define __vsyscall(nr) __attribute__ ((unused,__section__(".vsyscall_" #nr)))
 #define __syscall_clobber "r11","cx","memory"
-#define __pa_vsymbol(x)                 \
-        ({unsigned long v;              \
-        extern char __vsyscall_0;       \
-          asm("" : "=r" (v) : "0" (x)); \
-          ((v - VSYSCALL_START) + __pa_symbol(&__vsyscall_0)); })
 
 /*
  * vsyscall_gtod_data contains data that is :
@@ -102,7 +97,7 @@ static __always_inline void do_get_tz(struct timezone * tz)
 static __always_inline int gettimeofday(struct timeval *tv, struct timezone *tz)
 {
         int ret;
-        asm volatile("vsysc2: syscall"
+        asm volatile("syscall"
                 : "=a" (ret)
                 : "0" (__NR_gettimeofday),"D" (tv),"S" (tz)
                 : __syscall_clobber );
@@ -112,7 +107,7 @@ static __always_inline int gettimeofday(struct timeval *tv, struct timezone *tz)
 static __always_inline long time_syscall(long *t)
 {
         long secs;
-        asm volatile("vsysc1: syscall"
+        asm volatile("syscall"
                 : "=a" (secs)
                 : "0" (__NR_time),"D" (t) : __syscall_clobber);
         return secs;
@@ -228,42 +223,11 @@ long __vsyscall(3) venosys_1(void)
 
 #ifdef CONFIG_SYSCTL
 
-#define SYSCALL 0x050f
-#define NOP2    0x9090
-
-/*
- * NOP out syscall in vsyscall page when not needed.
- */
-static int vsyscall_sysctl_change(ctl_table *ctl, int write, struct file * filp,
-                        void __user *buffer, size_t *lenp, loff_t *ppos)
+static int
+vsyscall_sysctl_change(ctl_table *ctl, int write, struct file * filp,
+                       void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-        extern u16 vsysc1, vsysc2;
-        u16 __iomem *map1;
-        u16 __iomem *map2;
-        int ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
-        if (!write)
-                return ret;
-        /* gcc has some trouble with __va(__pa()), so just do it this
-           way. */
-        map1 = ioremap(__pa_vsymbol(&vsysc1), 2);
-        if (!map1)
-                return -ENOMEM;
-        map2 = ioremap(__pa_vsymbol(&vsysc2), 2);
-        if (!map2) {
-                ret = -ENOMEM;
-                goto out;
-        }
-        if (!vsyscall_gtod_data.sysctl_enabled) {
-                writew(SYSCALL, map1);
-                writew(SYSCALL, map2);
-        } else {
-                writew(NOP2, map1);
-                writew(NOP2, map2);
-        }
-        iounmap(map2);
-out:
-        iounmap(map1);
-        return ret;
+        return proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
 }
 
 static ctl_table kernel_table2[] = {
@@ -279,7 +243,6 @@ static ctl_table kernel_root_table2[] = {
           .child = kernel_table2 },
         {}
 };
-
 #endif
 
 /* Assume __initcall executes before all user space. Hopefully kmod
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 2cbee9479ce4..68a6b1511934 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -647,6 +647,10 @@ static void start_apic_timer(struct kvm_lapic *apic)
         apic->timer.period = apic_get_reg(apic, APIC_TMICT) *
                     APIC_BUS_CYCLE_NS * apic->timer.divide_count;
         atomic_set(&apic->timer.pending, 0);
+
+        if (!apic->timer.period)
+                return;
+
         hrtimer_start(&apic->timer.dev,
                       ktime_add_ns(now, apic->timer.period),
                       HRTIMER_MODE_ABS);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 8efdcdbebb03..d8172aabc660 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -681,8 +681,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
                                              unsigned level,
                                              int metaphysical,
                                              unsigned access,
-                                             u64 *parent_pte,
-                                             bool *new_page)
+                                             u64 *parent_pte)
 {
         union kvm_mmu_page_role role;
         unsigned index;
@@ -722,8 +721,6 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
         vcpu->arch.mmu.prefetch_page(vcpu, sp);
         if (!metaphysical)
                 rmap_write_protect(vcpu->kvm, gfn);
-        if (new_page)
-                *new_page = 1;
         return sp;
 }
 
@@ -876,11 +873,18 @@ static void page_header_update_slot(struct kvm *kvm, void *pte, gfn_t gfn)
 
 struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva)
 {
+        struct page *page;
+
         gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
 
         if (gpa == UNMAPPED_GVA)
                 return NULL;
-        return gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+
+        down_read(&current->mm->mmap_sem);
+        page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+        up_read(&current->mm->mmap_sem);
+
+        return page;
 }
 
 static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
@@ -999,8 +1003,7 @@ static int __nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write,
                                 >> PAGE_SHIFT;
                         new_table = kvm_mmu_get_page(vcpu, pseudo_gfn,
                                                      v, level - 1,
-                                                     1, ACC_ALL, &table[index],
-                                                     NULL);
+                                                     1, ACC_ALL, &table[index]);
                         if (!new_table) {
                                 pgprintk("nonpaging_map: ENOMEM\n");
                                 kvm_release_page_clean(page);
@@ -1020,15 +1023,18 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
 
         struct page *page;
 
+        down_read(&vcpu->kvm->slots_lock);
+
         down_read(&current->mm->mmap_sem);
         page = gfn_to_page(vcpu->kvm, gfn);
+        up_read(&current->mm->mmap_sem);
 
         spin_lock(&vcpu->kvm->mmu_lock);
         kvm_mmu_free_some_pages(vcpu);
         r = __nonpaging_map(vcpu, v, write, gfn, page);
         spin_unlock(&vcpu->kvm->mmu_lock);
 
-        up_read(&current->mm->mmap_sem);
+        up_read(&vcpu->kvm->slots_lock);
 
         return r;
 }
@@ -1090,7 +1096,7 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
 
                 ASSERT(!VALID_PAGE(root));
                 sp = kvm_mmu_get_page(vcpu, root_gfn, 0,
-                                      PT64_ROOT_LEVEL, 0, ACC_ALL, NULL, NULL);
+                                      PT64_ROOT_LEVEL, 0, ACC_ALL, NULL);
                 root = __pa(sp->spt);
                 ++sp->root_count;
                 vcpu->arch.mmu.root_hpa = root;
@@ -1111,7 +1117,7 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
                         root_gfn = 0;
                 sp = kvm_mmu_get_page(vcpu, root_gfn, i << 30,
                                       PT32_ROOT_LEVEL, !is_paging(vcpu),
-                                      ACC_ALL, NULL, NULL);
+                                      ACC_ALL, NULL);
                 root = __pa(sp->spt);
                 ++sp->root_count;
                 vcpu->arch.mmu.pae_root[i] = root | PT_PRESENT_MASK;
@@ -1172,7 +1178,7 @@ void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu)
 
 static void paging_new_cr3(struct kvm_vcpu *vcpu)
 {
-        pgprintk("%s: cr3 %lx\n", __FUNCTION__, vcpu->cr3);
+        pgprintk("%s: cr3 %lx\n", __FUNCTION__, vcpu->arch.cr3);
         mmu_free_roots(vcpu);
 }
 
@@ -1362,6 +1368,7 @@ static void mmu_guess_page_from_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
         gfn_t gfn;
         int r;
         u64 gpte = 0;
+        struct page *page;
 
         if (bytes != 4 && bytes != 8)
                 return;
@@ -1389,6 +1396,11 @@ static void mmu_guess_page_from_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
         if (!is_present_pte(gpte))
                 return;
         gfn = (gpte & PT64_BASE_ADDR_MASK) >> PAGE_SHIFT;
+
+        down_read(&current->mm->mmap_sem);
+        page = gfn_to_page(vcpu->kvm, gfn);
+        up_read(&current->mm->mmap_sem);
+
         vcpu->arch.update_pte.gfn = gfn;
         vcpu->arch.update_pte.page = gfn_to_page(vcpu->kvm, gfn);
 }
@@ -1496,9 +1508,9 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
         gpa_t gpa;
         int r;
 
-        down_read(&current->mm->mmap_sem);
+        down_read(&vcpu->kvm->slots_lock);
         gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
-        up_read(&current->mm->mmap_sem);
+        up_read(&vcpu->kvm->slots_lock);
 
         spin_lock(&vcpu->kvm->mmu_lock);
         r = kvm_mmu_unprotect_page(vcpu->kvm, gpa >> PAGE_SHIFT);
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 03ba8608fe0f..ecc0856268c4 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -91,7 +91,10 @@ static bool FNAME(cmpxchg_gpte)(struct kvm *kvm,
         pt_element_t *table;
         struct page *page;
 
+        down_read(&current->mm->mmap_sem);
         page = gfn_to_page(kvm, table_gfn);
+        up_read(&current->mm->mmap_sem);
+
         table = kmap_atomic(page, KM_USER0);
 
         ret = CMPXCHG(&table[index], orig_pte, new_pte);
@@ -140,7 +143,7 @@ walk:
         }
 #endif
         ASSERT((!is_long_mode(vcpu) && is_pae(vcpu)) ||
-               (vcpu->cr3 & CR3_NONPAE_RESERVED_BITS) == 0);
+               (vcpu->arch.cr3 & CR3_NONPAE_RESERVED_BITS) == 0);
 
         pt_access = ACC_ALL;
 
@@ -297,7 +300,6 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
                 u64 shadow_pte;
                 int metaphysical;
                 gfn_t table_gfn;
-                bool new_page = 0;
 
                 shadow_ent = ((u64 *)__va(shadow_addr)) + index;
                 if (level == PT_PAGE_TABLE_LEVEL)
@@ -319,8 +321,8 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
                 }
                 shadow_page = kvm_mmu_get_page(vcpu, table_gfn, addr, level-1,
                                                metaphysical, access,
-                                               shadow_ent, &new_page);
-                if (new_page && !metaphysical) {
+                                               shadow_ent);
+                if (!metaphysical) {
                         int r;
                         pt_element_t curr_pte;
                         r = kvm_read_guest_atomic(vcpu->kvm,
@@ -378,7 +380,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
         if (r)
                 return r;
 
-        down_read(&current->mm->mmap_sem);
+        down_read(&vcpu->kvm->slots_lock);
         /*
          * Look up the shadow pte for the faulting address.
          */
@@ -392,11 +394,13 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
                 pgprintk("%s: guest page fault\n", __FUNCTION__);
                 inject_page_fault(vcpu, addr, walker.error_code);
                 vcpu->arch.last_pt_write_count = 0; /* reset fork detector */
-                up_read(&current->mm->mmap_sem);
+                up_read(&vcpu->kvm->slots_lock);
                 return 0;
         }
 
+        down_read(&current->mm->mmap_sem);
         page = gfn_to_page(vcpu->kvm, walker.gfn);
+        up_read(&current->mm->mmap_sem);
 
         spin_lock(&vcpu->kvm->mmu_lock);
         kvm_mmu_free_some_pages(vcpu);
@@ -413,14 +417,14 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
          */
         if (shadow_pte && is_io_pte(*shadow_pte)) {
                 spin_unlock(&vcpu->kvm->mmu_lock);
-                up_read(&current->mm->mmap_sem);
+                up_read(&vcpu->kvm->slots_lock);
                 return 1;
         }
 
         ++vcpu->stat.pf_fixed;
         kvm_mmu_audit(vcpu, "post page fault (fixed)");
         spin_unlock(&vcpu->kvm->mmu_lock);
-        up_read(&current->mm->mmap_sem);
+        up_read(&vcpu->kvm->slots_lock);
 
         return write_pt;
 }
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index de755cb1431d..1a582f1090e8 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -792,6 +792,10 @@ static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
         vcpu->arch.cr0 = cr0;
         cr0 |= X86_CR0_PG | X86_CR0_WP;
         cr0 &= ~(X86_CR0_CD | X86_CR0_NW);
+        if (!vcpu->fpu_active) {
+                svm->vmcb->control.intercept_exceptions |= (1 << NM_VECTOR);
+                cr0 |= X86_CR0_TS;
+        }
         svm->vmcb->save.cr0 = cr0;
 }
 
@@ -1096,6 +1100,24 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data)
         case MSR_IA32_SYSENTER_ESP:
                 *data = svm->vmcb->save.sysenter_esp;
                 break;
+        /* Nobody will change the following 5 values in the VMCB so
+           we can safely return them on rdmsr. They will always be 0
+           until LBRV is implemented. */
+        case MSR_IA32_DEBUGCTLMSR:
+                *data = svm->vmcb->save.dbgctl;
+                break;
+        case MSR_IA32_LASTBRANCHFROMIP:
+                *data = svm->vmcb->save.br_from;
+                break;
+        case MSR_IA32_LASTBRANCHTOIP:
+                *data = svm->vmcb->save.br_to;
+                break;
+        case MSR_IA32_LASTINTFROMIP:
+                *data = svm->vmcb->save.last_excp_from;
+                break;
+        case MSR_IA32_LASTINTTOIP:
+                *data = svm->vmcb->save.last_excp_to;
+                break;
         default:
                 return kvm_get_msr_common(vcpu, ecx, data);
         }
@@ -1156,6 +1178,10 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data)
         case MSR_IA32_SYSENTER_ESP:
                 svm->vmcb->save.sysenter_esp = data;
                 break;
+        case MSR_IA32_DEBUGCTLMSR:
+                pr_unimpl(vcpu, "%s: MSR_IA32_DEBUGCTLMSR 0x%llx, nop\n",
+                                __FUNCTION__, data);
+                break;
         case MSR_K7_EVNTSEL0:
         case MSR_K7_EVNTSEL1:
         case MSR_K7_EVNTSEL2:
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index ad36447e696e..94ea724638fd 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -638,6 +638,7 @@ static void setup_msrs(struct vcpu_vmx *vmx)
 {
         int save_nmsrs;
 
+        vmx_load_host_state(vmx);
         save_nmsrs = 0;
 #ifdef CONFIG_X86_64
         if (is_long_mode(&vmx->vcpu)) {
@@ -1477,7 +1478,7 @@ static int alloc_apic_access_page(struct kvm *kvm)
         struct kvm_userspace_memory_region kvm_userspace_mem;
         int r = 0;
 
-        down_write(&current->mm->mmap_sem);
+        down_write(&kvm->slots_lock);
         if (kvm->arch.apic_access_page)
                 goto out;
         kvm_userspace_mem.slot = APIC_ACCESS_PAGE_PRIVATE_MEMSLOT;
@@ -1487,9 +1488,12 @@ static int alloc_apic_access_page(struct kvm *kvm)
         r = __kvm_set_memory_region(kvm, &kvm_userspace_mem, 0);
         if (r)
                 goto out;
+
+        down_read(&current->mm->mmap_sem);
         kvm->arch.apic_access_page = gfn_to_page(kvm, 0xfee00);
+        up_read(&current->mm->mmap_sem);
 out:
-        up_write(&current->mm->mmap_sem);
+        up_write(&kvm->slots_lock);
         return r;
 }
 
@@ -1602,9 +1606,6 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
         vmcs_writel(CR0_GUEST_HOST_MASK, ~0UL);
         vmcs_writel(CR4_GUEST_HOST_MASK, KVM_GUEST_CR4_MASK);
 
-        if (vm_need_virtualize_apic_accesses(vmx->vcpu.kvm))
-                if (alloc_apic_access_page(vmx->vcpu.kvm) != 0)
-                        return -ENOMEM;
 
         return 0;
 }
@@ -2534,6 +2535,9 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
         put_cpu();
         if (err)
                 goto free_vmcs;
+        if (vm_need_virtualize_apic_accesses(kvm))
+                if (alloc_apic_access_page(kvm) != 0)
+                        goto free_vmcs;
 
         return &vmx->vcpu;
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index cf5308148689..6b01552bd1f1 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -46,6 +46,9 @@
 #define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
 #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
 
+static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
+                                    struct kvm_cpuid_entry2 __user *entries);
+
 struct kvm_x86_ops *kvm_x86_ops;
 
 struct kvm_stats_debugfs_item debugfs_entries[] = {
@@ -181,7 +184,7 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3)
         int ret;
         u64 pdpte[ARRAY_SIZE(vcpu->arch.pdptrs)];
 
-        down_read(&current->mm->mmap_sem);
+        down_read(&vcpu->kvm->slots_lock);
         ret = kvm_read_guest_page(vcpu->kvm, pdpt_gfn, pdpte,
                                   offset * sizeof(u64), sizeof(pdpte));
         if (ret < 0) {
@@ -198,7 +201,7 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3)
 
         memcpy(vcpu->arch.pdptrs, pdpte, sizeof(vcpu->arch.pdptrs));
 out:
-        up_read(&current->mm->mmap_sem);
+        up_read(&vcpu->kvm->slots_lock);
 
         return ret;
 }
@@ -212,13 +215,13 @@ static bool pdptrs_changed(struct kvm_vcpu *vcpu)
         if (is_long_mode(vcpu) || !is_pae(vcpu))
                 return false;
 
-        down_read(&current->mm->mmap_sem);
+        down_read(&vcpu->kvm->slots_lock);
         r = kvm_read_guest(vcpu->kvm, vcpu->arch.cr3 & ~31u, pdpte, sizeof(pdpte));
         if (r < 0)
                 goto out;
         changed = memcmp(pdpte, vcpu->arch.pdptrs, sizeof(pdpte)) != 0;
 out:
-        up_read(&current->mm->mmap_sem);
+        up_read(&vcpu->kvm->slots_lock);
 
         return changed;
 }
@@ -356,7 +359,7 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
                  */
         }
 
-        down_read(&current->mm->mmap_sem);
+        down_read(&vcpu->kvm->slots_lock);
         /*
          * Does the new cr3 value map to physical memory? (Note, we
          * catch an invalid cr3 even in real-mode, because it would
@@ -372,7 +375,7 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
                 vcpu->arch.cr3 = cr3;
                 vcpu->arch.mmu.new_cr3(vcpu);
         }
-        up_read(&current->mm->mmap_sem);
+        up_read(&vcpu->kvm->slots_lock);
 }
 EXPORT_SYMBOL_GPL(set_cr3);
 
@@ -484,6 +487,10 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
                 pr_unimpl(vcpu, "%s: MSR_IA32_MCG_STATUS 0x%llx, nop\n",
                         __FUNCTION__, data);
                 break;
+        case MSR_IA32_MCG_CTL:
+                pr_unimpl(vcpu, "%s: MSR_IA32_MCG_CTL 0x%llx, nop\n",
+                        __FUNCTION__, data);
+                break;
         case MSR_IA32_UCODE_REV:
         case MSR_IA32_UCODE_WRITE:
         case 0x200 ... 0x2ff: /* MTRRs */
@@ -526,6 +533,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
         case MSR_IA32_MC0_CTL:
         case MSR_IA32_MCG_STATUS:
         case MSR_IA32_MCG_CAP:
+        case MSR_IA32_MCG_CTL:
         case MSR_IA32_MC0_MISC:
         case MSR_IA32_MC0_MISC+4:
         case MSR_IA32_MC0_MISC+8:
@@ -727,6 +735,24 @@ long kvm_arch_dev_ioctl(struct file *filp,
                 r = 0;
                 break;
         }
+        case KVM_GET_SUPPORTED_CPUID: {
+                struct kvm_cpuid2 __user *cpuid_arg = argp;
+                struct kvm_cpuid2 cpuid;
+
+                r = -EFAULT;
+                if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
+                        goto out;
+                r = kvm_dev_ioctl_get_supported_cpuid(&cpuid,
+                        cpuid_arg->entries);
+                if (r)
+                        goto out;
+
+                r = -EFAULT;
+                if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid))
+                        goto out;
+                r = 0;
+                break;
+        }
         default:
                 r = -EINVAL;
         }
@@ -974,8 +1000,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
         put_cpu();
 }
 
-static int kvm_vm_ioctl_get_supported_cpuid(struct kvm *kvm,
-                                    struct kvm_cpuid2 *cpuid,
+static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
                                     struct kvm_cpuid_entry2 __user *entries)
 {
         struct kvm_cpuid_entry2 *cpuid_entries;
@@ -1207,12 +1232,12 @@ static int kvm_vm_ioctl_set_nr_mmu_pages(struct kvm *kvm,
         if (kvm_nr_mmu_pages < KVM_MIN_ALLOC_MMU_PAGES)
                 return -EINVAL;
 
-        down_write(&current->mm->mmap_sem);
+        down_write(&kvm->slots_lock);
 
         kvm_mmu_change_mmu_pages(kvm, kvm_nr_mmu_pages);
         kvm->arch.n_requested_mmu_pages = kvm_nr_mmu_pages;
 
-        up_write(&current->mm->mmap_sem);
+        up_write(&kvm->slots_lock);
         return 0;
 }
 
@@ -1261,7 +1286,7 @@ static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm,
             < alias->target_phys_addr)
                 goto out;
 
-        down_write(&current->mm->mmap_sem);
+        down_write(&kvm->slots_lock);
 
         p = &kvm->arch.aliases[alias->slot];
         p->base_gfn = alias->guest_phys_addr >> PAGE_SHIFT;
@@ -1275,7 +1300,7 @@ static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm,
 
         kvm_mmu_zap_all(kvm);
 
-        up_write(&current->mm->mmap_sem);
+        up_write(&kvm->slots_lock);
 
         return 0;
 
@@ -1351,7 +1376,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
         struct kvm_memory_slot *memslot;
         int is_dirty = 0;
 
-        down_write(&current->mm->mmap_sem);
+        down_write(&kvm->slots_lock);
 
         r = kvm_get_dirty_log(kvm, log, &is_dirty);
         if (r)
@@ -1367,7 +1392,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
         }
         r = 0;
 out:
-        up_write(&current->mm->mmap_sem);
+        up_write(&kvm->slots_lock);
         return r;
 }
 
@@ -1487,24 +1512,6 @@ long kvm_arch_vm_ioctl(struct file *filp,
                 r = 0;
                 break;
         }
-        case KVM_GET_SUPPORTED_CPUID: {
-                struct kvm_cpuid2 __user *cpuid_arg = argp;
-                struct kvm_cpuid2 cpuid;
-
-                r = -EFAULT;
-                if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
-                        goto out;
-                r = kvm_vm_ioctl_get_supported_cpuid(kvm, &cpuid,
-                        cpuid_arg->entries);
-                if (r)
-                        goto out;
-
-                r = -EFAULT;
-                if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid))
-                        goto out;
-                r = 0;
-                break;
-        }
         default:
                 ;
         }
@@ -1563,7 +1570,7 @@ int emulator_read_std(unsigned long addr,
         void *data = val;
         int r = X86EMUL_CONTINUE;
 
-        down_read(&current->mm->mmap_sem);
+        down_read(&vcpu->kvm->slots_lock);
         while (bytes) {
                 gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
                 unsigned offset = addr & (PAGE_SIZE-1);
@@ -1585,7 +1592,7 @@ int emulator_read_std(unsigned long addr,
                 addr += tocopy;
         }
 out:
-        up_read(&current->mm->mmap_sem);
+        up_read(&vcpu->kvm->slots_lock);
         return r;
 }
 EXPORT_SYMBOL_GPL(emulator_read_std);
@@ -1604,9 +1611,9 @@ static int emulator_read_emulated(unsigned long addr,
                 return X86EMUL_CONTINUE;
         }
 
-        down_read(&current->mm->mmap_sem);
+        down_read(&vcpu->kvm->slots_lock);
         gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
-        up_read(&current->mm->mmap_sem);
+        up_read(&vcpu->kvm->slots_lock);
 
         /* For APIC access vmexit */
         if ((gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
@@ -1644,14 +1651,14 @@ static int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
 {
         int ret;
 
-        down_read(&current->mm->mmap_sem);
+        down_read(&vcpu->kvm->slots_lock);
         ret = kvm_write_guest(vcpu->kvm, gpa, val, bytes);
         if (ret < 0) {
-                up_read(&current->mm->mmap_sem);
+                up_read(&vcpu->kvm->slots_lock);
                 return 0;
         }
         kvm_mmu_pte_write(vcpu, gpa, val, bytes);
-        up_read(&current->mm->mmap_sem);
+        up_read(&vcpu->kvm->slots_lock);
         return 1;
 }
 
@@ -1663,9 +1670,9 @@ static int emulator_write_emulated_onepage(unsigned long addr,
         struct kvm_io_device *mmio_dev;
         gpa_t                 gpa;
 
-        down_read(&current->mm->mmap_sem);
+        down_read(&vcpu->kvm->slots_lock);
         gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
-        up_read(&current->mm->mmap_sem);
+        up_read(&vcpu->kvm->slots_lock);
 
         if (gpa == UNMAPPED_GVA) {
                 kvm_inject_page_fault(vcpu, addr, 2);
@@ -1742,7 +1749,7 @@ static int emulator_cmpxchg_emulated(unsigned long addr,
                 char *kaddr;
                 u64 val;
 
-                down_read(&current->mm->mmap_sem);
+                down_read(&vcpu->kvm->slots_lock);
                 gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
 
                 if (gpa == UNMAPPED_GVA ||
@@ -1753,13 +1760,17 @@ static int emulator_cmpxchg_emulated(unsigned long addr,
                         goto emul_write;
 
                 val = *(u64 *)new;
+
+                down_read(&current->mm->mmap_sem);
                 page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+                up_read(&current->mm->mmap_sem);
+
                 kaddr = kmap_atomic(page, KM_USER0);
                 set_64bit((u64 *)(kaddr + offset_in_page(gpa)), val);
                 kunmap_atomic(kaddr, KM_USER0);
                 kvm_release_page_dirty(page);
         emul_write:
-                up_read(&current->mm->mmap_sem);
+                up_read(&vcpu->kvm->slots_lock);
         }
 #endif
 
@@ -2152,10 +2163,10 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
                 kvm_x86_ops->skip_emulated_instruction(vcpu);
 
         for (i = 0; i < nr_pages; ++i) {
-                down_read(&current->mm->mmap_sem);
+                down_read(&vcpu->kvm->slots_lock);
                 page = gva_to_page(vcpu, address + i * PAGE_SIZE);
                 vcpu->arch.pio.guest_pages[i] = page;
-                up_read(&current->mm->mmap_sem);
+                up_read(&vcpu->kvm->slots_lock);
                 if (!page) {
                         kvm_inject_gp(vcpu, 0);
                         free_pio_guest_pages(vcpu);
@@ -2478,8 +2489,9 @@ static void vapic_enter(struct kvm_vcpu *vcpu)
 
         down_read(&current->mm->mmap_sem);
         page = gfn_to_page(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT);
-        vcpu->arch.apic->vapic_page = page;
         up_read(&current->mm->mmap_sem);
+
+        vcpu->arch.apic->vapic_page = page;
 }
 
 static void vapic_exit(struct kvm_vcpu *vcpu)
@@ -2861,8 +2873,8 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
         kvm_x86_ops->decache_cr4_guest_bits(vcpu);
 
         mmu_reset_needed |= vcpu->arch.cr0 != sregs->cr0;
-        vcpu->arch.cr0 = sregs->cr0;
         kvm_x86_ops->set_cr0(vcpu, sregs->cr0);
+        vcpu->arch.cr0 = sregs->cr0;
 
         mmu_reset_needed |= vcpu->arch.cr4 != sregs->cr4;
         kvm_x86_ops->set_cr4(vcpu, sregs->cr4);
@@ -2952,9 +2964,9 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
         gpa_t gpa;
 
         vcpu_load(vcpu);
-        down_read(&current->mm->mmap_sem);
+        down_read(&vcpu->kvm->slots_lock);
         gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, vaddr);
-        up_read(&current->mm->mmap_sem);
+        up_read(&vcpu->kvm->slots_lock);
         tr->physical_address = gpa;
         tr->valid = gpa != UNMAPPED_GVA;
         tr->writeable = 1;
@@ -3227,11 +3239,13 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
          */
         if (!user_alloc) {
                 if (npages && !old.rmap) {
+                        down_write(&current->mm->mmap_sem);
                         memslot->userspace_addr = do_mmap(NULL, 0,
                                                      npages * PAGE_SIZE,
                                                      PROT_READ | PROT_WRITE,
                                                      MAP_SHARED | MAP_ANONYMOUS,
                                                      0);
+                        up_write(&current->mm->mmap_sem);
 
                         if (IS_ERR((void *)memslot->userspace_addr))
                                 return PTR_ERR((void *)memslot->userspace_addr);
@@ -3239,8 +3253,10 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
                         if (!old.user_alloc && old.rmap) {
                                 int ret;
 
+                                down_write(&current->mm->mmap_sem);
                                 ret = do_munmap(current->mm, old.userspace_addr,
                                                 old.npages * PAGE_SIZE);
+                                up_write(&current->mm->mmap_sem);
                                 if (ret < 0)
                                         printk(KERN_WARNING
                                        "kvm_vm_ioctl_set_memory_region: "
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 5afdde4895dc..cccb38a59653 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -57,6 +57,7 @@
 #include <linux/lguest_launcher.h>
 #include <linux/virtio_console.h>
 #include <linux/pm.h>
+#include <asm/lguest.h>
 #include <asm/paravirt.h>
 #include <asm/param.h>
 #include <asm/page.h>
@@ -75,15 +76,6 @@
  * behaving in simplified but equivalent ways.  In particular, the Guest is the
  * same kernel as the Host (or at least, built from the same source code). :*/
 
-/* Declarations for definitions in lguest_guest.S */
-extern char lguest_noirq_start[], lguest_noirq_end[];
-extern const char lgstart_cli[], lgend_cli[];
-extern const char lgstart_sti[], lgend_sti[];
-extern const char lgstart_popf[], lgend_popf[];
-extern const char lgstart_pushf[], lgend_pushf[];
-extern const char lgstart_iret[], lgend_iret[];
-extern void lguest_iret(void);
-
 struct lguest_data lguest_data = {
         .hcall_status = { [0 ... LHCALL_RING_SIZE-1] = 0xFF },
         .noirq_start = (u32)lguest_noirq_start,
@@ -489,7 +481,7 @@ static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval)
 {
         *pmdp = pmdval;
         lazy_hcall(LHCALL_SET_PMD, __pa(pmdp)&PAGE_MASK,
-                   (__pa(pmdp)&(PAGE_SIZE-1))/4, 0);
+                   (__pa(pmdp)&(PAGE_SIZE-1)), 0);
 }
 
 /* There are a couple of legacy places where the kernel sets a PTE, but we
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index bb652f5a93fb..a02a14f0f324 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -172,8 +172,9 @@ set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot)
 }
 
 /*
- * The head.S code sets up the kernel high mapping from:
- * __START_KERNEL_map to __START_KERNEL_map + KERNEL_TEXT_SIZE
+ * The head.S code sets up the kernel high mapping:
+ *
+ *   from __START_KERNEL_map to __START_KERNEL_map + size (== _end-_text)
  *
  * phys_addr holds the negative offset to the kernel, which is added
  * to the compile time generated pmds. This results in invalid pmds up
@@ -515,14 +516,6 @@ void __init mem_init(void)
 
         /* clear_bss() already clear the empty_zero_page */
 
-        /* temporary debugging - double check it's true: */
-        {
-                int i;
-
-                for (i = 0; i < 1024; i++)
-                        WARN_ON_ONCE(empty_zero_page[i]);
-        }
-
         reservedpages = 0;
 
         /* this will put all low memory onto the freelists */
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 882328efc3db..ac3c959e271d 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -162,7 +162,7 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
         area->phys_addr = phys_addr;
         vaddr = (unsigned long) area->addr;
         if (ioremap_page_range(vaddr, vaddr + size, phys_addr, prot)) {
-                remove_vm_area((void *)(vaddr & PAGE_MASK));
+                free_vm_area(area);
                 return NULL;
         }
 
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 59898fb0a4aa..8ccfee10f5b5 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -622,13 +622,17 @@ void __init init_cpu_to_node(void)
         int i;
 
         for (i = 0; i < NR_CPUS; i++) {
+                int node;
                 u16 apicid = x86_cpu_to_apicid_init[i];
 
                 if (apicid == BAD_APICID)
                         continue;
-                if (apicid_to_node[apicid] == NUMA_NO_NODE)
+                node = apicid_to_node[apicid];
+                if (node == NUMA_NO_NODE)
                         continue;
-                numa_set_node(i, apicid_to_node[apicid]);
+                if (!node_online(node))
+                        continue;
+                numa_set_node(i, node);
         }
 }
 
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 464d8fc21ce6..14e48b5a94ba 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -44,6 +44,12 @@ static inline unsigned long highmap_end_pfn(void)
 
 #endif
 
+#ifdef CONFIG_DEBUG_PAGEALLOC
+# define debug_pagealloc 1
+#else
+# define debug_pagealloc 0
+#endif
+
 static inline int
 within(unsigned long addr, unsigned long start, unsigned long end)
 {
@@ -355,45 +361,48 @@ out_unlock:
 
 static LIST_HEAD(page_pool);
 static unsigned long pool_size, pool_pages, pool_low;
-static unsigned long pool_used, pool_failed, pool_refill;
+static unsigned long pool_used, pool_failed;
 
-static void cpa_fill_pool(void)
+static void cpa_fill_pool(struct page **ret)
 {
-        struct page *p;
         gfp_t gfp = GFP_KERNEL;
+        unsigned long flags;
+        struct page *p;
 
-        /* Do not allocate from interrupt context */
-        if (in_irq() || irqs_disabled())
-                return;
         /*
-         * Check unlocked. I does not matter when we have one more
-         * page in the pool. The bit lock avoids recursive pool
-         * allocations:
+         * Avoid recursion (on debug-pagealloc) and also signal
+         * our priority to get to these pagetables:
          */
-        if (pool_pages >= pool_size || test_and_set_bit_lock(0, &pool_refill))
+        if (current->flags & PF_MEMALLOC)
                 return;
+        current->flags |= PF_MEMALLOC;
 
-#ifdef CONFIG_DEBUG_PAGEALLOC
         /*
-         * We could do:
-         * gfp = in_atomic() ? GFP_ATOMIC : GFP_KERNEL;
-         * but this fails on !PREEMPT kernels
+         * Allocate atomically from atomic contexts:
          */
-        gfp =  GFP_ATOMIC | __GFP_NORETRY | __GFP_NOWARN;
-#endif
+        if (in_atomic() || irqs_disabled() || debug_pagealloc)
+                gfp =  GFP_ATOMIC | __GFP_NORETRY | __GFP_NOWARN;
 
-        while (pool_pages < pool_size) {
+        while (pool_pages < pool_size || (ret && !*ret)) {
                 p = alloc_pages(gfp, 0);
                 if (!p) {
                         pool_failed++;
                         break;
                 }
-                spin_lock_irq(&pgd_lock);
+                /*
+                 * If the call site needs a page right now, provide it:
+                 */
+                if (ret && !*ret) {
+                        *ret = p;
+                        continue;
+                }
+                spin_lock_irqsave(&pgd_lock, flags);
                 list_add(&p->lru, &page_pool);
                 pool_pages++;
-                spin_unlock_irq(&pgd_lock);
+                spin_unlock_irqrestore(&pgd_lock, flags);
         }
-        clear_bit_unlock(0, &pool_refill);
+
+        current->flags &= ~PF_MEMALLOC;
 }
 
 #define SHIFT_MB                (20 - PAGE_SHIFT)
@@ -414,11 +423,15 @@ void __init cpa_init(void)
          * GiB. Shift MiB to Gib and multiply the result by
          * POOL_PAGES_PER_GB:
          */
-        gb = ((si.totalram >> SHIFT_MB) + ROUND_MB_GB) >> SHIFT_MB_GB;
-        pool_size = POOL_PAGES_PER_GB * gb;
+        if (debug_pagealloc) {
+                gb = ((si.totalram >> SHIFT_MB) + ROUND_MB_GB) >> SHIFT_MB_GB;
+                pool_size = POOL_PAGES_PER_GB * gb;
+        } else {
+                pool_size = 1;
+        }
         pool_low = pool_size;
 
-        cpa_fill_pool();
+        cpa_fill_pool(NULL);
         printk(KERN_DEBUG
                "CPA: page pool initialized %lu of %lu pages preallocated\n",
                pool_pages, pool_size);
@@ -440,16 +453,20 @@ static int split_large_page(pte_t *kpte, unsigned long address)
         spin_lock_irqsave(&pgd_lock, flags);
         if (list_empty(&page_pool)) {
                 spin_unlock_irqrestore(&pgd_lock, flags);
-                return -ENOMEM;
+                base = NULL;
+                cpa_fill_pool(&base);
+                if (!base)
+                        return -ENOMEM;
+                spin_lock_irqsave(&pgd_lock, flags);
+        } else {
+                base = list_first_entry(&page_pool, struct page, lru);
+                list_del(&base->lru);
+                pool_pages--;
+
+                if (pool_pages < pool_low)
+                        pool_low = pool_pages;
         }
 
-        base = list_first_entry(&page_pool, struct page, lru);
-        list_del(&base->lru);
-        pool_pages--;
-
-        if (pool_pages < pool_low)
-                pool_low = pool_pages;
-
         /*
          * Check for races, another CPU might have split this page
          * up for us already:
@@ -734,7 +751,8 @@ static int change_page_attr_set_clr(unsigned long addr, int numpages,
                 cpa_flush_all(cache);
 
 out:
-        cpa_fill_pool();
+        cpa_fill_pool(NULL);
+
         return ret;
 }
 
@@ -897,7 +915,7 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
          * Try to refill the page pool here. We can do this only after
          * the tlb flush.
          */
-        cpa_fill_pool();
+        cpa_fill_pool(NULL);
 }
 
 #ifdef CONFIG_HIBERNATION
diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index f385a4b4a484..0a8f4742ef51 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -50,7 +50,9 @@ obj-$(VDSO64-y)			+= vdso-syms.lds
 sed-vdsosym := -e 's/^00*/0/' \
         -e 's/^\([0-9a-fA-F]*\) . \(VDSO[a-zA-Z0-9_]*\)$$/\2 = 0x\1;/p'
 quiet_cmd_vdsosym = VDSOSYM $@
-      cmd_vdsosym = $(NM) $< | sed -n $(sed-vdsosym) | LC_ALL=C sort > $@
+define cmd_vdsosym
+        $(NM) $< | LC_ALL=C sed -n $(sed-vdsosym) | LC_ALL=C sort > $@
+endef
 
 $(obj)/%-syms.lds: $(obj)/%.so.dbg FORCE
         $(call if_changed,vdsosym)
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 49e5358f481a..8b9ee27805fd 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -153,6 +153,7 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx,
         if (*ax == 1)
                 maskedx = ~((1 << X86_FEATURE_APIC) |  /* disable APIC */
                             (1 << X86_FEATURE_ACPI) |  /* disable ACPI */
+                            (1 << X86_FEATURE_SEP)  |  /* disable SEP */
                             (1 << X86_FEATURE_ACC));   /* thermal monitoring */
 
         asm(XEN_EMULATE_PREFIX "cpuid"
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 3bad4773a2f3..2341492bf7a0 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -38,7 +38,8 @@ char * __init xen_memory_setup(void)
         unsigned long max_pfn = xen_start_info->nr_pages;
 
         e820.nr_map = 0;
-        add_memory_region(0, PFN_PHYS(max_pfn), E820_RAM);
+        add_memory_region(0, LOWMEMSIZE(), E820_RAM);
+        add_memory_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM);
 
         return "Xen";
 }
diff --git a/block/blk-barrier.c b/block/blk-barrier.c
index 6901eedeffce..55c5f1fc4f1f 100644
--- a/block/blk-barrier.c
+++ b/block/blk-barrier.c
@@ -259,8 +259,11 @@ int blk_do_ordered(struct request_queue *q, struct request **rqp)
 
 static void bio_end_empty_barrier(struct bio *bio, int err)
 {
-        if (err)
+        if (err) {
+                if (err == -EOPNOTSUPP)
+                        set_bit(BIO_EOPNOTSUPP, &bio->bi_flags);
                 clear_bit(BIO_UPTODATE, &bio->bi_flags);
+        }
 
         complete(bio->bi_private);
 }
@@ -309,7 +312,9 @@ int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector)
                 *error_sector = bio->bi_sector;
 
         ret = 0;
-        if (!bio_flagged(bio, BIO_UPTODATE))
+        if (bio_flagged(bio, BIO_EOPNOTSUPP))
+                ret = -EOPNOTSUPP;
+        else if (!bio_flagged(bio, BIO_UPTODATE))
                 ret = -EIO;
 
         bio_put(bio);
diff --git a/block/blk-core.c b/block/blk-core.c
index 775c8516abf5..2a438a93f723 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -127,7 +127,6 @@ void rq_init(struct request_queue *q, struct request *rq)
         rq->nr_hw_segments = 0;
         rq->ioprio = 0;
         rq->special = NULL;
-        rq->raw_data_len = 0;
         rq->buffer = NULL;
         rq->tag = -1;
         rq->errors = 0;
@@ -135,6 +134,7 @@ void rq_init(struct request_queue *q, struct request *rq)
         rq->cmd_len = 0;
         memset(rq->cmd, 0, sizeof(rq->cmd));
         rq->data_len = 0;
+        rq->extra_len = 0;
         rq->sense_len = 0;
         rq->data = NULL;
         rq->sense = NULL;
@@ -424,7 +424,6 @@ void blk_put_queue(struct request_queue *q)
 {
         kobject_put(&q->kobj);
 }
-EXPORT_SYMBOL(blk_put_queue);
 
 void blk_cleanup_queue(struct request_queue *q)
 {
@@ -592,7 +591,6 @@ int blk_get_queue(struct request_queue *q)
 
         return 1;
 }
-EXPORT_SYMBOL(blk_get_queue);
 
 static inline void blk_free_request(struct request_queue *q, struct request *rq)
 {
@@ -1768,6 +1766,7 @@ static inline void __end_request(struct request *rq, int uptodate,
 
 /**
  * blk_rq_bytes - Returns bytes left to complete in the entire request
+ * @rq: the request being processed
  **/
 unsigned int blk_rq_bytes(struct request *rq)
 {
@@ -1780,6 +1779,7 @@ EXPORT_SYMBOL_GPL(blk_rq_bytes);
 
 /**
  * blk_rq_cur_bytes - Returns bytes left to complete in the current segment
+ * @rq: the request being processed
  **/
 unsigned int blk_rq_cur_bytes(struct request *rq)
 {
@@ -2016,7 +2016,6 @@ void blk_rq_bio_prep(struct request_queue *q, struct request *rq,
         rq->hard_cur_sectors = rq->current_nr_sectors;
         rq->hard_nr_sectors = rq->nr_sectors = bio_sectors(bio);
         rq->buffer = bio_data(bio);
-        rq->raw_data_len = bio->bi_size;
         rq->data_len = bio->bi_size;
 
         rq->bio = rq->biotail = bio;
diff --git a/block/blk-map.c b/block/blk-map.c
index 09f7fd0bcb73..c07d9c8317f4 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -19,7 +19,6 @@ int blk_rq_append_bio(struct request_queue *q, struct request *rq,
                 rq->biotail->bi_next = bio;
                 rq->biotail = bio;
 
-                rq->raw_data_len += bio->bi_size;
                 rq->data_len += bio->bi_size;
         }
         return 0;
@@ -44,6 +43,7 @@ static int __blk_rq_map_user(struct request_queue *q, struct request *rq,
                              void __user *ubuf, unsigned int len)
 {
         unsigned long uaddr;
+        unsigned int alignment;
         struct bio *bio, *orig_bio;
         int reading, ret;
 
@@ -54,8 +54,8 @@ static int __blk_rq_map_user(struct request_queue *q, struct request *rq,
          * direct dma. else, set up kernel bounce buffers
          */
         uaddr = (unsigned long) ubuf;
-        if (!(uaddr & queue_dma_alignment(q)) &&
-            !(len & queue_dma_alignment(q)))
+        alignment = queue_dma_alignment(q) | q->dma_pad_mask;
+        if (!(uaddr & alignment) && !(len & alignment))
                 bio = bio_map_user(q, NULL, uaddr, len, reading);
         else
                 bio = bio_copy_user(q, uaddr, len, reading);
@@ -142,20 +142,22 @@ int blk_rq_map_user(struct request_queue *q, struct request *rq,
 
         /*
          * __blk_rq_map_user() copies the buffers if starting address
-         * or length isn't aligned.  As the copied buffer is always
-         * page aligned, we know that there's enough room for padding.
-         * Extend the last bio and update rq->data_len accordingly.
+         * or length isn't aligned to dma_pad_mask.  As the copied
+         * buffer is always page aligned, we know that there's enough
+         * room for padding.  Extend the last bio and update
+         * rq->data_len accordingly.
          *
          * On unmap, bio_uncopy_user() will use unmodified
          * bio_map_data pointed to by bio->bi_private.
          */
-        if (len & queue_dma_alignment(q)) {
-                unsigned int pad_len = (queue_dma_alignment(q) & ~len) + 1;
-                struct bio *bio = rq->biotail;
+        if (len & q->dma_pad_mask) {
+                unsigned int pad_len = (q->dma_pad_mask & ~len) + 1;
+                struct bio *tail = rq->biotail;
 
-                bio->bi_io_vec[bio->bi_vcnt - 1].bv_len += pad_len;
-                bio->bi_size += pad_len;
-                rq->data_len += pad_len;
+                tail->bi_io_vec[tail->bi_vcnt - 1].bv_len += pad_len;
+                tail->bi_size += pad_len;
+
+                rq->extra_len += pad_len;
         }
 
         rq->buffer = rq->data = NULL;
@@ -215,7 +217,6 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
         rq->buffer = rq->data = NULL;
         return 0;
 }
-EXPORT_SYMBOL(blk_rq_map_user_iov);
 
 /**
  * blk_rq_unmap_user - unmap a request with user data
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 7506c4fe0264..0f58616bcd7f 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -231,7 +231,7 @@ new_segment:
                             ((unsigned long)q->dma_drain_buffer) &
                             (PAGE_SIZE - 1));
                 nsegs++;
-                rq->data_len += q->dma_drain_size;
+                rq->extra_len += q->dma_drain_size;
         }
 
         if (sg)
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 9a8ffdd0ce3d..1344a0ea5cc6 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -140,7 +140,7 @@ void blk_queue_bounce_limit(struct request_queue *q, u64 dma_addr)
         /* Assume anything <= 4GB can be handled by IOMMU.
            Actually some IOMMUs can handle everything, but I don't
            know of a way to test this here. */
-        if (b_pfn < (min_t(u64, 0xffffffff, BLK_BOUNCE_HIGH) >> PAGE_SHIFT))
+        if (b_pfn <= (min_t(u64, 0xffffffff, BLK_BOUNCE_HIGH) >> PAGE_SHIFT))
                 dma = 1;
         q->bounce_pfn = max_low_pfn;
 #else
@@ -293,8 +293,24 @@ void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b)
 EXPORT_SYMBOL(blk_queue_stack_limits);
 
 /**
- * blk_queue_dma_drain - Set up a drain buffer for excess dma.
+ * blk_queue_dma_pad - set pad mask
+ * @q:     the request queue for the device
+ * @mask:  pad mask
+ *
+ * Set pad mask.  Direct IO requests are padded to the mask specified.
  *
+ * Appending pad buffer to a request modifies ->data_len such that it
+ * includes the pad buffer.  The original requested data length can be
+ * obtained using blk_rq_raw_data_len().
+ **/
+void blk_queue_dma_pad(struct request_queue *q, unsigned int mask)
+{
+        q->dma_pad_mask = mask;
+}
+EXPORT_SYMBOL(blk_queue_dma_pad);
+
+/**
+ * blk_queue_dma_drain - Set up a drain buffer for excess dma.
  * @q:  the request queue for the device
  * @dma_drain_needed: fn which returns non-zero if drain is necessary
  * @buf:        physically contiguous buffer
@@ -316,7 +332,7 @@ EXPORT_SYMBOL(blk_queue_stack_limits);
  * device can support otherwise there won't be room for the drain
  * buffer.
  */
-extern int blk_queue_dma_drain(struct request_queue *q,
+int blk_queue_dma_drain(struct request_queue *q,
                                dma_drain_needed_fn *dma_drain_needed,
                                void *buf, unsigned int size)
 {
diff --git a/block/blk-tag.c b/block/blk-tag.c
index a8c37d4bbb32..4780a46ce234 100644
--- a/block/blk-tag.c
+++ b/block/blk-tag.c
@@ -6,6 +6,8 @@
 #include <linux/bio.h>
 #include <linux/blkdev.h>
 
+#include "blk.h"
+
 /**
  * blk_queue_find_tag - find a request by its tag and queue
  * @q:   The request queue for the device
diff --git a/block/blk.h b/block/blk.h
index ec898dd0c65c..ec9120fb789a 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -32,6 +32,8 @@ void blk_recalc_rq_sectors(struct request *rq, int nsect);
 
 void blk_queue_congestion_threshold(struct request_queue *q);
 
+int blk_dev_init(void);
+
 /*
  * Return the threshold (number of used requests) at which the queue is
  * considered to be congested.  It include a little hysteresis to keep the
diff --git a/block/bsg.c b/block/bsg.c
index 7f3c09549e4b..8917c5174dc2 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -437,14 +437,14 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr,
         }
 
         if (rq->next_rq) {
-                hdr->dout_resid = rq->raw_data_len;
-                hdr->din_resid = rq->next_rq->raw_data_len;
+                hdr->dout_resid = rq->data_len;
+                hdr->din_resid = rq->next_rq->data_len;
                 blk_rq_unmap_user(bidi_bio);
                 blk_put_request(rq->next_rq);
         } else if (rq_data_dir(rq) == READ)
-                hdr->din_resid = rq->raw_data_len;
+                hdr->din_resid = rq->data_len;
         else
-                hdr->dout_resid = rq->raw_data_len;
+                hdr->dout_resid = rq->data_len;
 
         /*
          * If the request generated a negative error number, return it
diff --git a/block/genhd.c b/block/genhd.c
index 53f2238e69c8..c44527d16c52 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -17,11 +17,15 @@
 #include <linux/buffer_head.h>
 #include <linux/mutex.h>
 
+#include "blk.h"
+
 static DEFINE_MUTEX(block_class_lock);
 #ifndef CONFIG_SYSFS_DEPRECATED
 struct kobject *block_depr;
 #endif
 
+static struct device_type disk_type;
+
 /*
  * Can be deleted altogether. Later.
  *
@@ -346,8 +350,6 @@ const struct seq_operations partitions_op = {
 #endif
 
 
-extern int blk_dev_init(void);
-
 static struct kobject *base_probe(dev_t devt, int *part, void *data)
 {
         if (request_module("block-major-%d-%d", MAJOR(devt), MINOR(devt)) > 0)
@@ -502,7 +504,7 @@ struct class block_class = {
         .name           = "block",
 };
 
-struct device_type disk_type = {
+static struct device_type disk_type = {
         .name           = "disk",
         .groups         = disk_attr_groups,
         .release        = disk_release,
@@ -632,12 +634,14 @@ static void media_change_notify_thread(struct work_struct *work)
         put_device(gd->driverfs_dev);
 }
 
+#if 0
 void genhd_media_change_notify(struct gendisk *disk)
 {
         get_device(disk->driverfs_dev);
         schedule_work(&disk->async_notify);
 }
 EXPORT_SYMBOL_GPL(genhd_media_change_notify);
+#endif  /*  0  */
 
 dev_t blk_lookup_devt(const char *name)
 {
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index e993cac4911d..a2c3a936ebf9 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -266,7 +266,7 @@ static int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr,
         hdr->info = 0;
         if (hdr->masked_status || hdr->host_status || hdr->driver_status)
                 hdr->info |= SG_INFO_CHECK;
-        hdr->resid = rq->raw_data_len;
+        hdr->resid = rq->data_len;
         hdr->sb_len_wr = 0;
 
         if (rq->sense_len && hdr->sbp) {
@@ -528,8 +528,8 @@ static int __blk_send_generic(struct request_queue *q, struct gendisk *bd_disk,
         rq = blk_get_request(q, WRITE, __GFP_WAIT);
         rq->cmd_type = REQ_TYPE_BLOCK_PC;
         rq->data = NULL;
-        rq->raw_data_len = 0;
         rq->data_len = 0;
+        rq->extra_len = 0;
         rq->timeout = BLK_DEFAULT_SG_TIMEOUT;
         memset(rq->cmd, 0, sizeof(rq->cmd));
         rq->cmd[0] = cmd;
diff --git a/drivers/acorn/char/defkeymap-l7200.c b/drivers/acorn/char/defkeymap-l7200.c
index 28a5fbc6aa1a..93d80a1c36f9 100644
--- a/drivers/acorn/char/defkeymap-l7200.c
+++ b/drivers/acorn/char/defkeymap-l7200.c
@@ -347,40 +347,40 @@ char *func_table[MAX_NR_FUNC] = {
 };
 
 struct kbdiacruc accent_table[MAX_DIACR] = {
-        {'`', 'A', '\300'},     {'`', 'a', '\340'},
-        {'\'', 'A', '\301'},    {'\'', 'a', '\341'},
-        {'^', 'A', '\302'},     {'^', 'a', '\342'},
-        {'~', 'A', '\303'},     {'~', 'a', '\343'},
-        {'"', 'A', '\304'},     {'"', 'a', '\344'},
-        {'O', 'A', '\305'},     {'o', 'a', '\345'},
-        {'0', 'A', '\305'},     {'0', 'a', '\345'},
-        {'A', 'A', '\305'},     {'a', 'a', '\345'},
-        {'A', 'E', '\306'},     {'a', 'e', '\346'},
-        {',', 'C', '\307'},     {',', 'c', '\347'},
-        {'`', 'E', '\310'},     {'`', 'e', '\350'},
-        {'\'', 'E', '\311'},    {'\'', 'e', '\351'},
-        {'^', 'E', '\312'},     {'^', 'e', '\352'},
-        {'"', 'E', '\313'},     {'"', 'e', '\353'},
-        {'`', 'I', '\314'},     {'`', 'i', '\354'},
-        {'\'', 'I', '\315'},    {'\'', 'i', '\355'},
-        {'^', 'I', '\316'},     {'^', 'i', '\356'},
-        {'"', 'I', '\317'},     {'"', 'i', '\357'},
-        {'-', 'D', '\320'},     {'-', 'd', '\360'},
-        {'~', 'N', '\321'},     {'~', 'n', '\361'},
-        {'`', 'O', '\322'},     {'`', 'o', '\362'},
-        {'\'', 'O', '\323'},    {'\'', 'o', '\363'},
-        {'^', 'O', '\324'},     {'^', 'o', '\364'},
-        {'~', 'O', '\325'},     {'~', 'o', '\365'},
-        {'"', 'O', '\326'},     {'"', 'o', '\366'},
-        {'/', 'O', '\330'},     {'/', 'o', '\370'},
-        {'`', 'U', '\331'},     {'`', 'u', '\371'},
-        {'\'', 'U', '\332'},    {'\'', 'u', '\372'},
-        {'^', 'U', '\333'},     {'^', 'u', '\373'},
-        {'"', 'U', '\334'},     {'"', 'u', '\374'},
-        {'\'', 'Y', '\335'},    {'\'', 'y', '\375'},
-        {'T', 'H', '\336'},     {'t', 'h', '\376'},
-        {'s', 's', '\337'},     {'"', 'y', '\377'},
-        {'s', 'z', '\337'},     {'i', 'j', '\377'},
+        {'`', 'A', 0300},       {'`', 'a', 0340},
+        {'\'', 'A', 0301},      {'\'', 'a', 0341},
+        {'^', 'A', 0302},       {'^', 'a', 0342},
+        {'~', 'A', 0303},       {'~', 'a', 0343},
+        {'"', 'A', 0304},       {'"', 'a', 0344},
+        {'O', 'A', 0305},       {'o', 'a', 0345},
+        {'0', 'A', 0305},       {'0', 'a', 0345},
+        {'A', 'A', 0305},       {'a', 'a', 0345},
+        {'A', 'E', 0306},       {'a', 'e', 0346},
+        {',', 'C', 0307},       {',', 'c', 0347},
+        {'`', 'E', 0310},       {'`', 'e', 0350},
+        {'\'', 'E', 0311},      {'\'', 'e', 0351},
+        {'^', 'E', 0312},       {'^', 'e', 0352},
+        {'"', 'E', 0313},       {'"', 'e', 0353},
+        {'`', 'I', 0314},       {'`', 'i', 0354},
+        {'\'', 'I', 0315},      {'\'', 'i', 0355},
+        {'^', 'I', 0316},       {'^', 'i', 0356},
+        {'"', 'I', 0317},       {'"', 'i', 0357},
+        {'-', 'D', 0320},       {'-', 'd', 0360},
+        {'~', 'N', 0321},       {'~', 'n', 0361},
+        {'`', 'O', 0322},       {'`', 'o', 0362},
+        {'\'', 'O', 0323},      {'\'', 'o', 0363},
+        {'^', 'O', 0324},       {'^', 'o', 0364},
+        {'~', 'O', 0325},       {'~', 'o', 0365},
+        {'"', 'O', 0326},       {'"', 'o', 0366},
+        {'/', 'O', 0330},       {'/', 'o', 0370},
+        {'`', 'U', 0331},       {'`', 'u', 0371},
+        {'\'', 'U', 0332},      {'\'', 'u', 0372},
+        {'^', 'U', 0333},       {'^', 'u', 0373},
+        {'"', 'U', 0334},       {'"', 'u', 0374},
+        {'\'', 'Y', 0335},      {'\'', 'y', 0375},
+        {'T', 'H', 0336},       {'t', 'h', 0376},
+        {'s', 's', 0337},       {'"', 'y', 0377},
+        {'s', 'z', 0337},       {'i', 'j', 0377},
 };
 
 unsigned int accent_table_size = 68;
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index fbc24358ada0..4fbcce758b04 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -113,7 +113,7 @@ int atapi_enabled = 1;
 module_param(atapi_enabled, int, 0444);
 MODULE_PARM_DESC(atapi_enabled, "Enable discovery of ATAPI devices (0=off, 1=on)");
 
-int atapi_dmadir = 0;
+static int atapi_dmadir = 0;
 module_param(atapi_dmadir, int, 0444);
 MODULE_PARM_DESC(atapi_dmadir, "Enable ATAPI DMADIR bridge support (0=off, 1=on)");
 
@@ -6567,6 +6567,8 @@ int ata_host_suspend(struct ata_host *host, pm_message_t mesg)
         ata_lpm_enable(host);
 
         rc = ata_host_request_pm(host, mesg, 0, ATA_EHI_QUIET, 1);
+        if (rc == 0)
+                host->dev->power.power_state = mesg;
         return rc;
 }
 
@@ -6585,6 +6587,7 @@ void ata_host_resume(struct ata_host *host)
 {
         ata_host_request_pm(host, PMSG_ON, ATA_EH_SOFTRESET,
                             ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, 0);
+        host->dev->power.power_state = PMSG_ON;
 
         /* reenable link pm */
         ata_lpm_disable(host);
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 0562b0a49f3b..8f0e8f2bc628 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -862,9 +862,10 @@ static int ata_scsi_dev_config(struct scsi_device *sdev,
                 struct request_queue *q = sdev->request_queue;
                 void *buf;
 
-                /* set the min alignment */
+                /* set the min alignment and padding */
                 blk_queue_update_dma_alignment(sdev->request_queue,
                                                ATA_DMA_PAD_SZ - 1);
+                blk_queue_dma_pad(sdev->request_queue, ATA_DMA_PAD_SZ - 1);
 
                 /* configure draining */
                 buf = kmalloc(ATAPI_MAX_DRAIN, q->bounce_gfp | GFP_KERNEL);
@@ -1694,12 +1695,17 @@ void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
         u8 *rbuf;
         unsigned int buflen, rc;
         struct scsi_cmnd *cmd = args->cmd;
+        unsigned long flags;
+
+        local_irq_save(flags);
 
         buflen = ata_scsi_rbuf_get(cmd, &rbuf);
         memset(rbuf, 0, buflen);
         rc = actor(args, rbuf, buflen);
         ata_scsi_rbuf_put(cmd, rbuf);
 
+        local_irq_restore(flags);
+
         if (rc == 0)
                 cmd->result = SAM_STAT_GOOD;
         args->done(cmd);
@@ -2473,6 +2479,9 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
                 if ((scsicmd[0] == INQUIRY) && ((scsicmd[1] & 0x03) == 0)) {
                         u8 *buf = NULL;
                         unsigned int buflen;
+                        unsigned long flags;
+
+                        local_irq_save(flags);
 
                         buflen = ata_scsi_rbuf_get(cmd, &buf);
 
@@ -2490,6 +2499,8 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
                         }
 
                         ata_scsi_rbuf_put(cmd, buf);
+
+                        local_irq_restore(flags);
                 }
 
                 cmd->result = SAM_STAT_GOOD;
@@ -2528,7 +2539,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
         }
 
         qc->tf.command = ATA_CMD_PACKET;
-        qc->nbytes = scsi_bufflen(scmd);
+        qc->nbytes = scsi_bufflen(scmd) + scmd->request->extra_len;
 
         /* check whether ATAPI DMA is safe */
         if (!using_pio && ata_check_atapi_dma(qc))
@@ -2539,7 +2550,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
          * want to set it properly, and for DMA where it is
          * effectively meaningless.
          */
-        nbytes = min(scmd->request->raw_data_len, (unsigned int)63 * 1024);
+        nbytes = min(scmd->request->data_len, (unsigned int)63 * 1024);
 
         /* Most ATAPI devices which honor transfer chunk size don't
          * behave according to the spec when odd chunk size which
@@ -2865,7 +2876,7 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
          * TODO: find out if we need to do more here to
          *       cover scatter/gather case.
          */
-        qc->nbytes = scsi_bufflen(scmd);
+        qc->nbytes = scsi_bufflen(scmd) + scmd->request->extra_len;
 
         /* request result TF and be quiet about device error */
         qc->flags |= ATA_QCFLAG_RESULT_TF | ATA_QCFLAG_QUIET;
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 6036dedfe377..aa884f71a12a 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -56,7 +56,6 @@ enum {
 extern unsigned int ata_print_id;
 extern struct workqueue_struct *ata_aux_wq;
 extern int atapi_enabled;
-extern int atapi_dmadir;
 extern int atapi_passthru16;
 extern int libata_fua;
 extern int libata_noacpi;
diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c
index 69f651e0bc98..840d1c4a7850 100644
--- a/drivers/ata/sata_svw.c
+++ b/drivers/ata/sata_svw.c
@@ -45,6 +45,8 @@
 #include <linux/interrupt.h>
 #include <linux/device.h>
 #include <scsi/scsi_host.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi.h>
 #include <linux/libata.h>
 
 #ifdef CONFIG_PPC_OF
@@ -59,6 +61,7 @@ enum {
         /* ap->flags bits */
         K2_FLAG_SATA_8_PORTS            = (1 << 24),
         K2_FLAG_NO_ATAPI_DMA            = (1 << 25),
+        K2_FLAG_BAR_POS_3                       = (1 << 26),
 
         /* Taskfile registers offsets */
         K2_SATA_TF_CMD_OFFSET           = 0x00,
@@ -88,8 +91,10 @@ enum {
         /* Port stride */
         K2_SATA_PORT_OFFSET             = 0x100,
 
-        board_svw4                      = 0,
-        board_svw8                      = 1,
+        chip_svw4                       = 0,
+        chip_svw8                       = 1,
+        chip_svw42                      = 2,    /* bar 3 */
+        chip_svw43                      = 3,    /* bar 5 */
 };
 
 static u8 k2_stat_check_status(struct ata_port *ap);
@@ -97,10 +102,25 @@ static u8 k2_stat_check_status(struct ata_port *ap);
 
 static int k2_sata_check_atapi_dma(struct ata_queued_cmd *qc)
 {
+        u8 cmnd = qc->scsicmd->cmnd[0];
+
         if (qc->ap->flags & K2_FLAG_NO_ATAPI_DMA)
                 return -1;      /* ATAPI DMA not supported */
+        else {
+                switch (cmnd) {
+                case READ_10:
+                case READ_12:
+                case READ_16:
+                case WRITE_10:
+                case WRITE_12:
+                case WRITE_16:
+                        return 0;
+
+                default:
+                        return -1;
+                }
 
-        return 0;
+        }
 }
 
 static int k2_sata_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
@@ -354,7 +374,7 @@ static const struct ata_port_operations k2_sata_ops = {
 };
 
 static const struct ata_port_info k2_port_info[] = {
-        /* board_svw4 */
+        /* chip_svw4 */
         {
                 .flags          = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
                                   ATA_FLAG_MMIO | K2_FLAG_NO_ATAPI_DMA,
@@ -363,7 +383,7 @@ static const struct ata_port_info k2_port_info[] = {
                 .udma_mask      = ATA_UDMA6,
                 .port_ops       = &k2_sata_ops,
         },
-        /* board_svw8 */
+        /* chip_svw8 */
         {
                 .flags          = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
                                   ATA_FLAG_MMIO | K2_FLAG_NO_ATAPI_DMA |
@@ -373,6 +393,24 @@ static const struct ata_port_info k2_port_info[] = {
                 .udma_mask      = ATA_UDMA6,
                 .port_ops       = &k2_sata_ops,
         },
+        /* chip_svw42 */
+        {
+                .flags          = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
+                                  ATA_FLAG_MMIO | K2_FLAG_BAR_POS_3,
+                .pio_mask       = 0x1f,
+                .mwdma_mask     = 0x07,
+                .udma_mask      = ATA_UDMA6,
+                .port_ops       = &k2_sata_ops,
+        },
+        /* chip_svw43 */
+        {
+                .flags          = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
+                                  ATA_FLAG_MMIO,
+                .pio_mask       = 0x1f,
+                .mwdma_mask     = 0x07,
+                .udma_mask      = ATA_UDMA6,
+                .port_ops       = &k2_sata_ops,
+        },
 };
 
 static void k2_sata_setup_port(struct ata_ioports *port, void __iomem *base)
@@ -402,7 +440,7 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en
                 { &k2_port_info[ent->driver_data], NULL };
         struct ata_host *host;
         void __iomem *mmio_base;
-        int n_ports, i, rc;
+        int n_ports, i, rc, bar_pos;
 
         if (!printed_version++)
                 dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
@@ -416,6 +454,9 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en
         if (!host)
                 return -ENOMEM;
 
+        bar_pos = 5;
+        if (ppi[0]->flags & K2_FLAG_BAR_POS_3)
+                bar_pos = 3;
         /*
          * If this driver happens to only be useful on Apple's K2, then
          * we should check that here as it has a normal Serverworks ID
@@ -428,17 +469,23 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en
          * Check if we have resources mapped at all (second function may
          * have been disabled by firmware)
          */
-        if (pci_resource_len(pdev, 5) == 0)
+        if (pci_resource_len(pdev, bar_pos) == 0) {
+                /* In IDE mode we need to pin the device to ensure that
+                        pcim_release does not clear the busmaster bit in config
+                        space, clearing causes busmaster DMA to fail on
+                        ports 3 & 4 */
+                pcim_pin_device(pdev);
                 return -ENODEV;
+        }
 
         /* Request and iomap PCI regions */
-        rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME);
+        rc = pcim_iomap_regions(pdev, 1 << bar_pos, DRV_NAME);
         if (rc == -EBUSY)
                 pcim_pin_device(pdev);
         if (rc)
                 return rc;
         host->iomap = pcim_iomap_table(pdev);
-        mmio_base = host->iomap[5];
+        mmio_base = host->iomap[bar_pos];
 
         /* different controllers have different number of ports - currently 4 or 8 */
         /* All ports are on the same function. Multi-function device is no
@@ -483,11 +530,13 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en
  * controller
  * */
 static const struct pci_device_id k2_sata_pci_tbl[] = {
-        { PCI_VDEVICE(SERVERWORKS, 0x0240), board_svw4 },
-        { PCI_VDEVICE(SERVERWORKS, 0x0241), board_svw4 },
-        { PCI_VDEVICE(SERVERWORKS, 0x0242), board_svw8 },
-        { PCI_VDEVICE(SERVERWORKS, 0x024a), board_svw4 },
-        { PCI_VDEVICE(SERVERWORKS, 0x024b), board_svw4 },
+        { PCI_VDEVICE(SERVERWORKS, 0x0240), chip_svw4 },
+        { PCI_VDEVICE(SERVERWORKS, 0x0241), chip_svw4 },
+        { PCI_VDEVICE(SERVERWORKS, 0x0242), chip_svw8 },
+        { PCI_VDEVICE(SERVERWORKS, 0x024a), chip_svw4 },
+        { PCI_VDEVICE(SERVERWORKS, 0x024b), chip_svw4 },
+        { PCI_VDEVICE(SERVERWORKS, 0x0410), chip_svw42 },
+        { PCI_VDEVICE(SERVERWORKS, 0x0411), chip_svw43 },
 
         { }
 };
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 9c0070b5bd3e..7de543d1d0b4 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -621,7 +621,8 @@ static struct kobject *get_device_parent(struct device *dev,
 static void cleanup_glue_dir(struct device *dev, struct kobject *glue_dir)
 {
         /* see if we live in a "glue" directory */
-        if (!dev->class || glue_dir->kset != &dev->class->class_dirs)
+        if (!glue_dir || !dev->class ||
+            glue_dir->kset != &dev->class->class_dirs)
                 return;
 
         kobject_put(glue_dir);
@@ -770,17 +771,10 @@ int device_add(struct device *dev)
         struct class_interface *class_intf;
         int error;
 
-        error = pm_sleep_lock();
-        if (error) {
-                dev_warn(dev, "Suspicious %s during suspend\n", __FUNCTION__);
-                dump_stack();
-                return error;
-        }
-
         dev = get_device(dev);
         if (!dev || !strlen(dev->bus_id)) {
                 error = -EINVAL;
-                goto Error;
+                goto Done;
         }
 
         pr_debug("device: '%s': %s\n", dev->bus_id, __FUNCTION__);
@@ -843,11 +837,9 @@ int device_add(struct device *dev)
         }
  Done:
         put_device(dev);
-        pm_sleep_unlock();
         return error;
  BusError:
         device_pm_remove(dev);
-        dpm_sysfs_remove(dev);
  PMError:
         if (dev->bus)
                 blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index ee9d1c8db0d6..d887d5cb5bef 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -48,7 +48,6 @@
  */
 
 LIST_HEAD(dpm_active);
-static LIST_HEAD(dpm_locked);
 static LIST_HEAD(dpm_off);
 static LIST_HEAD(dpm_off_irq);
 static LIST_HEAD(dpm_destroy);
@@ -81,28 +80,6 @@ void device_pm_add(struct device *dev)
  */
 void device_pm_remove(struct device *dev)
 {
-        /*
-         * If this function is called during a suspend, it will be blocked,
-         * because we're holding the device's semaphore at that time, which may
-         * lead to a deadlock.  In that case we want to print a warning.
-         * However, it may also be called by unregister_dropped_devices() with
-         * the device's semaphore released, in which case the warning should
-         * not be printed.
-         */
-        if (down_trylock(&dev->sem)) {
-                if (down_read_trylock(&pm_sleep_rwsem)) {
-                        /* No suspend in progress, wait on dev->sem */
-                        down(&dev->sem);
-                        up_read(&pm_sleep_rwsem);
-                } else {
-                        /* Suspend in progress, we may deadlock */
-                        dev_warn(dev, "Suspicious %s during suspend\n",
-                                __FUNCTION__);
-                        dump_stack();
-                        /* The user has been warned ... */
-                        down(&dev->sem);
-                }
-        }
         pr_debug("PM: Removing info for %s:%s\n",
                  dev->bus ? dev->bus->name : "No Bus",
                  kobject_name(&dev->kobj));
@@ -110,7 +87,6 @@ void device_pm_remove(struct device *dev)
         dpm_sysfs_remove(dev);
         list_del_init(&dev->power.entry);
         mutex_unlock(&dpm_list_mtx);
-        up(&dev->sem);
 }
 
 /**
@@ -230,6 +206,8 @@ static int resume_device(struct device *dev)
         TRACE_DEVICE(dev);
         TRACE_RESUME(0);
 
+        down(&dev->sem);
+
         if (dev->bus && dev->bus->resume) {
                 dev_dbg(dev,"resuming\n");
                 error = dev->bus->resume(dev);
@@ -245,6 +223,8 @@ static int resume_device(struct device *dev)
                 error = dev->class->resume(dev);
         }
 
+        up(&dev->sem);
+
         TRACE_RESUME(error);
         return error;
 }
@@ -266,7 +246,7 @@ static void dpm_resume(void)
                 struct list_head *entry = dpm_off.next;
                 struct device *dev = to_device(entry);
 
-                list_move_tail(entry, &dpm_locked);
+                list_move_tail(entry, &dpm_active);
                 mutex_unlock(&dpm_list_mtx);
                 resume_device(dev);
                 mutex_lock(&dpm_list_mtx);
@@ -275,25 +255,6 @@ static void dpm_resume(void)
 }
 
 /**
- *      unlock_all_devices - Release each device's semaphore
- *
- *      Go through the dpm_off list.  Put each device on the dpm_active
- *      list and unlock it.
- */
-static void unlock_all_devices(void)
-{
-        mutex_lock(&dpm_list_mtx);
-        while (!list_empty(&dpm_locked)) {
-                struct list_head *entry = dpm_locked.prev;
-                struct device *dev = to_device(entry);
-
-                list_move(entry, &dpm_active);
-                up(&dev->sem);
-        }
-        mutex_unlock(&dpm_list_mtx);
-}
-
-/**
  *      unregister_dropped_devices - Unregister devices scheduled for removal
  *
  *      Unregister all devices on the dpm_destroy list.
@@ -305,7 +266,6 @@ static void unregister_dropped_devices(void)
                 struct list_head *entry = dpm_destroy.next;
                 struct device *dev = to_device(entry);
 
-                up(&dev->sem);
                 mutex_unlock(&dpm_list_mtx);
                 /* This also removes the device from the list */
                 device_unregister(dev);
@@ -324,7 +284,6 @@ void device_resume(void)
 {
         might_sleep();
         dpm_resume();
-        unlock_all_devices();
         unregister_dropped_devices();
         up_write(&pm_sleep_rwsem);
 }
@@ -388,18 +347,15 @@ int device_power_down(pm_message_t state)
                 struct list_head *entry = dpm_off.prev;
                 struct device *dev = to_device(entry);
 
-                list_del_init(&dev->power.entry);
                 error = suspend_device_late(dev, state);
                 if (error) {
                         printk(KERN_ERR "Could not power down device %s: "
                                         "error %d\n",
                                         kobject_name(&dev->kobj), error);
-                        if (list_empty(&dev->power.entry))
-                                list_add(&dev->power.entry, &dpm_off);
                         break;
                 }
-                if (list_empty(&dev->power.entry))
-                        list_add(&dev->power.entry, &dpm_off_irq);
+                if (!list_empty(&dev->power.entry))
+                        list_move(&dev->power.entry, &dpm_off_irq);
         }
 
         if (!error)
@@ -419,6 +375,8 @@ static int suspend_device(struct device *dev, pm_message_t state)
 {
         int error = 0;
 
+        down(&dev->sem);
+
         if (dev->power.power_state.event) {
                 dev_dbg(dev, "PM: suspend %d-->%d\n",
                         dev->power.power_state.event, state.event);
@@ -441,6 +399,9 @@ static int suspend_device(struct device *dev, pm_message_t state)
                 error = dev->bus->suspend(dev, state);
                 suspend_report_result(dev->bus->suspend, error);
         }
+
+        up(&dev->sem);
+
         return error;
 }
 
@@ -461,13 +422,13 @@ static int dpm_suspend(pm_message_t state)
         int error = 0;
 
         mutex_lock(&dpm_list_mtx);
-        while (!list_empty(&dpm_locked)) {
-                struct list_head *entry = dpm_locked.prev;
+        while (!list_empty(&dpm_active)) {
+                struct list_head *entry = dpm_active.prev;
                 struct device *dev = to_device(entry);
 
-                list_del_init(&dev->power.entry);
                 mutex_unlock(&dpm_list_mtx);
                 error = suspend_device(dev, state);
+                mutex_lock(&dpm_list_mtx);
                 if (error) {
                         printk(KERN_ERR "Could not suspend device %s: "
                                         "error %d%s\n",
@@ -476,14 +437,10 @@ static int dpm_suspend(pm_message_t state)
                                         (error == -EAGAIN ?
                                         " (please convert to suspend_late)" :
                                         ""));
-                        mutex_lock(&dpm_list_mtx);
-                        if (list_empty(&dev->power.entry))
-                                list_add(&dev->power.entry, &dpm_locked);
                         break;
                 }
-                mutex_lock(&dpm_list_mtx);
-                if (list_empty(&dev->power.entry))
-                        list_add(&dev->power.entry, &dpm_off);
+                if (!list_empty(&dev->power.entry))
+                        list_move(&dev->power.entry, &dpm_off);
         }
         mutex_unlock(&dpm_list_mtx);
 
@@ -491,36 +448,6 @@ static int dpm_suspend(pm_message_t state)
 }
 
 /**
- *      lock_all_devices - Acquire every device's semaphore
- *
- *      Go through the dpm_active list. Carefully lock each device's
- *      semaphore and put it in on the dpm_locked list.
- */
-static void lock_all_devices(void)
-{
-        mutex_lock(&dpm_list_mtx);
-        while (!list_empty(&dpm_active)) {
-                struct list_head *entry = dpm_active.next;
-                struct device *dev = to_device(entry);
-
-                /* Required locking order is dev->sem first,
-                 * then dpm_list_mutex.  Hence this awkward code.
-                 */
-                get_device(dev);
-                mutex_unlock(&dpm_list_mtx);
-                down(&dev->sem);
-                mutex_lock(&dpm_list_mtx);
-
-                if (list_empty(entry))
-                        up(&dev->sem);          /* Device was removed */
-                else
-                        list_move_tail(entry, &dpm_locked);
-                put_device(dev);
-        }
-        mutex_unlock(&dpm_list_mtx);
-}
-
-/**
  *      device_suspend - Save state and stop all devices in system.
  *      @state: new power management state
  *
@@ -533,7 +460,6 @@ int device_suspend(pm_message_t state)
 
         might_sleep();
         down_write(&pm_sleep_rwsem);
-        lock_all_devices();
         error = dpm_suspend(state);
         if (error)
                 device_resume();
diff --git a/drivers/base/transport_class.c b/drivers/base/transport_class.c
index f25e7c6b2d27..40bca48abc12 100644
--- a/drivers/base/transport_class.c
+++ b/drivers/base/transport_class.c
@@ -126,9 +126,7 @@ static int transport_setup_classdev(struct attribute_container *cont,
 }
 
 /**
- * transport_setup_device - declare a new dev for transport class association
- *                          but don't make it visible yet.
- *
+ * transport_setup_device - declare a new dev for transport class association but don't make it visible yet.
  * @dev: the generic device representing the entity being added
  *
  * Usually, dev represents some component in the HBA system (either
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 9715be3f2487..55bd35c0f082 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -33,6 +33,7 @@
 #include <linux/blkpg.h>
 #include <linux/timer.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/init.h>
 #include <linux/hdreg.h>
 #include <linux/spinlock.h>
@@ -131,7 +132,6 @@ static struct board_type products[] = {
 /*define how many times we will try a command because of bus resets */
 #define MAX_CMD_RETRIES 3
 
-#define READ_AHEAD       1024
 #define MAX_CTLR        32
 
 /* Originally cciss driver only supports 8 major numbers */
@@ -174,8 +174,6 @@ static int sendcmd_withirq(__u8 cmd, int ctlr, void *buff, size_t size,
 static void fail_all_cmds(unsigned long ctlr);
 
 #ifdef CONFIG_PROC_FS
-static int cciss_proc_get_info(char *buffer, char **start, off_t offset,
-                               int length, int *eof, void *data);
 static void cciss_procinit(int i);
 #else
 static void cciss_procinit(int i)
@@ -240,24 +238,46 @@ static inline CommandList_struct *removeQ(CommandList_struct **Qptr,
  */
 #define ENG_GIG 1000000000
 #define ENG_GIG_FACTOR (ENG_GIG/512)
+#define ENGAGE_SCSI     "engage scsi"
 static const char *raid_label[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG",
         "UNKNOWN"
 };
 
 static struct proc_dir_entry *proc_cciss;
 
-static int cciss_proc_get_info(char *buffer, char **start, off_t offset,
-                               int length, int *eof, void *data)
+static void cciss_seq_show_header(struct seq_file *seq)
 {
-        off_t pos = 0;
-        off_t len = 0;
-        int size, i, ctlr;
-        ctlr_info_t *h = (ctlr_info_t *) data;
-        drive_info_struct *drv;
-        unsigned long flags;
-        sector_t vol_sz, vol_sz_frac;
+        ctlr_info_t *h = seq->private;
+
+        seq_printf(seq, "%s: HP %s Controller\n"
+                "Board ID: 0x%08lx\n"
+                "Firmware Version: %c%c%c%c\n"
+                "IRQ: %d\n"
+                "Logical drives: %d\n"
+                "Current Q depth: %d\n"
+                "Current # commands on controller: %d\n"
+                "Max Q depth since init: %d\n"
+                "Max # commands on controller since init: %d\n"
+                "Max SG entries since init: %d\n",
+                h->devname,
+                h->product_name,
+                (unsigned long)h->board_id,
+                h->firm_ver[0], h->firm_ver[1], h->firm_ver[2],
+                h->firm_ver[3], (unsigned int)h->intr[SIMPLE_MODE_INT],
+                h->num_luns,
+                h->Qdepth, h->commands_outstanding,
+                h->maxQsinceinit, h->max_outstanding, h->maxSG);
 
-        ctlr = h->ctlr;
+#ifdef CONFIG_CISS_SCSI_TAPE
+        cciss_seq_tape_report(seq, h->ctlr);
+#endif /* CONFIG_CISS_SCSI_TAPE */
+}
+
+static void *cciss_seq_start(struct seq_file *seq, loff_t *pos)
+{
+        ctlr_info_t *h = seq->private;
+        unsigned ctlr = h->ctlr;
+        unsigned long flags;
 
         /* prevent displaying bogus info during configuration
          * or deconfiguration of a logical volume
@@ -265,115 +285,155 @@ static int cciss_proc_get_info(char *buffer, char **start, off_t offset,
         spin_lock_irqsave(CCISS_LOCK(ctlr), flags);
         if (h->busy_configuring) {
                 spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
-                return -EBUSY;
+                return ERR_PTR(-EBUSY);
         }
         h->busy_configuring = 1;
         spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
 
-        size = sprintf(buffer, "%s: HP %s Controller\n"
-                       "Board ID: 0x%08lx\n"
-                       "Firmware Version: %c%c%c%c\n"
-                       "IRQ: %d\n"
-                       "Logical drives: %d\n"
-                       "Max sectors: %d\n"
-                       "Current Q depth: %d\n"
-                       "Current # commands on controller: %d\n"
-                       "Max Q depth since init: %d\n"
-                       "Max # commands on controller since init: %d\n"
-                       "Max SG entries since init: %d\n\n",
-                       h->devname,
-                       h->product_name,
-                       (unsigned long)h->board_id,
-                       h->firm_ver[0], h->firm_ver[1], h->firm_ver[2],
-                       h->firm_ver[3], (unsigned int)h->intr[SIMPLE_MODE_INT],
-                       h->num_luns,
-                       h->cciss_max_sectors,
-                       h->Qdepth, h->commands_outstanding,
-                       h->maxQsinceinit, h->max_outstanding, h->maxSG);
-
-        pos += size;
-        len += size;
-        cciss_proc_tape_report(ctlr, buffer, &pos, &len);
-        for (i = 0; i <= h->highest_lun; i++) {
-
-                drv = &h->drv[i];
-                if (drv->heads == 0)
-                        continue;
+        if (*pos == 0)
+                cciss_seq_show_header(seq);
 
-                vol_sz = drv->nr_blocks;
-                vol_sz_frac = sector_div(vol_sz, ENG_GIG_FACTOR);
-                vol_sz_frac *= 100;
-                sector_div(vol_sz_frac, ENG_GIG_FACTOR);
+        return pos;
+}
+
+static int cciss_seq_show(struct seq_file *seq, void *v)
+{
+        sector_t vol_sz, vol_sz_frac;
+        ctlr_info_t *h = seq->private;
+        unsigned ctlr = h->ctlr;
+        loff_t *pos = v;
+        drive_info_struct *drv = &h->drv[*pos];
+
+        if (*pos > h->highest_lun)
+                return 0;
+
+        if (drv->heads == 0)
+                return 0;
+
+        vol_sz = drv->nr_blocks;
+        vol_sz_frac = sector_div(vol_sz, ENG_GIG_FACTOR);
+        vol_sz_frac *= 100;
+        sector_div(vol_sz_frac, ENG_GIG_FACTOR);
+
+        if (drv->raid_level > 5)
+                drv->raid_level = RAID_UNKNOWN;
+        seq_printf(seq, "cciss/c%dd%d:"
+                        "\t%4u.%02uGB\tRAID %s\n",
+                        ctlr, (int) *pos, (int)vol_sz, (int)vol_sz_frac,
+                        raid_label[drv->raid_level]);
+        return 0;
+}
+
+static void *cciss_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+        ctlr_info_t *h = seq->private;
+
+        if (*pos > h->highest_lun)
+                return NULL;
+        *pos += 1;
+
+        return pos;
+}
+
+static void cciss_seq_stop(struct seq_file *seq, void *v)
+{
+        ctlr_info_t *h = seq->private;
+
+        /* Only reset h->busy_configuring if we succeeded in setting
+         * it during cciss_seq_start. */
+        if (v == ERR_PTR(-EBUSY))
+                return;
 
-                if (drv->raid_level > 5)
-                        drv->raid_level = RAID_UNKNOWN;
-                size = sprintf(buffer + len, "cciss/c%dd%d:"
-                               "\t%4u.%02uGB\tRAID %s\n",
-                               ctlr, i, (int)vol_sz, (int)vol_sz_frac,
-                               raid_label[drv->raid_level]);
-                pos += size;
-                len += size;
-        }
-
-        *eof = 1;
-        *start = buffer + offset;
-        len -= offset;
-        if (len > length)
-                len = length;
         h->busy_configuring = 0;
-        return len;
 }
 
-static int
-cciss_proc_write(struct file *file, const char __user *buffer,
-                 unsigned long count, void *data)
+static struct seq_operations cciss_seq_ops = {
+        .start = cciss_seq_start,
+        .show  = cciss_seq_show,
+        .next  = cciss_seq_next,
+        .stop  = cciss_seq_stop,
+};
+
+static int cciss_seq_open(struct inode *inode, struct file *file)
 {
-        unsigned char cmd[80];
-        int len;
-#ifdef CONFIG_CISS_SCSI_TAPE
-        ctlr_info_t *h = (ctlr_info_t *) data;
-        int rc;
+        int ret = seq_open(file, &cciss_seq_ops);
+        struct seq_file *seq = file->private_data;
+
+        if (!ret)
+                seq->private = PDE(inode)->data;
+
+        return ret;
+}
+
+static ssize_t
+cciss_proc_write(struct file *file, const char __user *buf,
+                 size_t length, loff_t *ppos)
+{
+        int err;
+        char *buffer;
+
+#ifndef CONFIG_CISS_SCSI_TAPE
+        return -EINVAL;
 #endif
 
-        if (count > sizeof(cmd) - 1)
+        if (!buf || length > PAGE_SIZE - 1)
                 return -EINVAL;
-        if (copy_from_user(cmd, buffer, count))
-                return -EFAULT;
-        cmd[count] = '\0';
-        len = strlen(cmd);      // above 3 lines ensure safety
-        if (len && cmd[len - 1] == '\n')
-                cmd[--len] = '\0';
-#       ifdef CONFIG_CISS_SCSI_TAPE
-        if (strcmp("engage scsi", cmd) == 0) {
+
+        buffer = (char *)__get_free_page(GFP_KERNEL);
+        if (!buffer)
+                return -ENOMEM;
+
+        err = -EFAULT;
+        if (copy_from_user(buffer, buf, length))
+                goto out;
+        buffer[length] = '\0';
+
+#ifdef CONFIG_CISS_SCSI_TAPE
+        if (strncmp(ENGAGE_SCSI, buffer, sizeof ENGAGE_SCSI - 1) == 0) {
+                struct seq_file *seq = file->private_data;
+                ctlr_info_t *h = seq->private;
+                int rc;
+
                 rc = cciss_engage_scsi(h->ctlr);
                 if (rc != 0)
-                        return -rc;
-                return count;
-        }
+                        err = -rc;
+                else
+                        err = length;
+        } else
+#endif /* CONFIG_CISS_SCSI_TAPE */
+                err = -EINVAL;
         /* might be nice to have "disengage" too, but it's not
            safely possible. (only 1 module use count, lock issues.) */
-#       endif
-        return -EINVAL;
+
+out:
+        free_page((unsigned long)buffer);
+        return err;
 }
 
-/*
- * Get us a file in /proc/cciss that says something about each controller.
- * Create /proc/cciss if it doesn't exist yet.
- */
+static struct file_operations cciss_proc_fops = {
+        .owner   = THIS_MODULE,
+        .open    = cciss_seq_open,
+        .read    = seq_read,
+        .llseek  = seq_lseek,
+        .release = seq_release,
+        .write   = cciss_proc_write,
+};
+
 static void __devinit cciss_procinit(int i)
 {
         struct proc_dir_entry *pde;
 
-        if (proc_cciss == NULL) {
+        if (proc_cciss == NULL)
                 proc_cciss = proc_mkdir("cciss", proc_root_driver);
-                if (!proc_cciss)
-                        return;
-        }
+        if (!proc_cciss)
+                return;
+        pde = proc_create(hba[i]->devname, S_IWUSR | S_IRUSR | S_IRGRP |
+                                        S_IROTH, proc_cciss,
+                                        &cciss_proc_fops);
+        if (!pde)
+                return;
 
-        pde = create_proc_read_entry(hba[i]->devname,
-                                     S_IWUSR | S_IRUSR | S_IRGRP | S_IROTH,
-                                     proc_cciss, cciss_proc_get_info, hba[i]);
-        pde->write_proc = cciss_proc_write;
+        pde->data = hba[i];
 }
 #endif                          /* CONFIG_PROC_FS */
 
@@ -1341,7 +1401,6 @@ geo_inq:
                 disk->private_data = &h->drv[drv_index];
 
                 /* Set up queue information */
-                disk->queue->backing_dev_info.ra_pages = READ_AHEAD;
                 blk_queue_bounce_limit(disk->queue, hba[ctlr]->pdev->dma_mask);
 
                 /* This is a hardware imposed limit. */
@@ -3434,7 +3493,6 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
                 }
                 drv->queue = q;
 
-                q->backing_dev_info.ra_pages = READ_AHEAD;
                 blk_queue_bounce_limit(q, hba[i]->pdev->dma_mask);
 
                 /* This is a hardware imposed limit. */
diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index 55178e9973a0..45ac09300eb3 100644
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -1404,21 +1404,18 @@ cciss_engage_scsi(int ctlr)
 }
 
 static void
-cciss_proc_tape_report(int ctlr, unsigned char *buffer, off_t *pos, off_t *len)
+cciss_seq_tape_report(struct seq_file *seq, int ctlr)
 {
         unsigned long flags;
-        int size;
-
-        *pos = *pos -1; *len = *len - 1; // cut off the last trailing newline
 
         CPQ_TAPE_LOCK(ctlr, flags);
-        size = sprintf(buffer + *len, 
+        seq_printf(seq,
                 "Sequential access devices: %d\n\n",
                         ccissscsi[ctlr].ndevices);
         CPQ_TAPE_UNLOCK(ctlr, flags);
-        *pos += size; *len += size;
 }
 
+
 /* Need at least one of these error handlers to keep ../scsi/hosts.c from 
  * complaining.  Doing a host- or bus-reset can't do anything good here. 
  * Despite what it might say in scsi_error.c, there may well be commands
@@ -1498,6 +1495,5 @@ static int  cciss_eh_abort_handler(struct scsi_cmnd *scsicmd)
 #define cciss_scsi_setup(cntl_num)
 #define cciss_unregister_scsi(ctlr)
 #define cciss_register_scsi(ctlr)
-#define cciss_proc_tape_report(ctlr, buffer, pos, len)
 
 #endif /* CONFIG_CISS_SCSI_TAPE */
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 674cd66dcaba..18feb1c7c33b 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -849,7 +849,8 @@ static int pkt_flush_cache(struct pktcdvd_device *pd)
 /*
  * speed is given as the normal factor, e.g. 4 for 4x
  */
-static int pkt_set_speed(struct pktcdvd_device *pd, unsigned write_speed, unsigned read_speed)
+static noinline_for_stack int pkt_set_speed(struct pktcdvd_device *pd,
+                                unsigned write_speed, unsigned read_speed)
 {
         struct packet_command cgc;
         struct request_sense sense;
@@ -1776,7 +1777,8 @@ static int pkt_get_track_info(struct pktcdvd_device *pd, __u16 track, __u8 type,
         return pkt_generic_packet(pd, &cgc);
 }
 
-static int pkt_get_last_written(struct pktcdvd_device *pd, long *last_written)
+static noinline_for_stack int pkt_get_last_written(struct pktcdvd_device *pd,
+                                                long *last_written)
 {
         disc_information di;
         track_information ti;
@@ -1813,7 +1815,7 @@ static int pkt_get_last_written(struct pktcdvd_device *pd, long *last_written)
 /*
  * write mode select package based on pd->settings
  */
-static int pkt_set_write_settings(struct pktcdvd_device *pd)
+static noinline_for_stack int pkt_set_write_settings(struct pktcdvd_device *pd)
 {
         struct packet_command cgc;
         struct request_sense sense;
@@ -1972,7 +1974,7 @@ static int pkt_writable_disc(struct pktcdvd_device *pd, disc_information *di)
         return 1;
 }
 
-static int pkt_probe_settings(struct pktcdvd_device *pd)
+static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
 {
         struct packet_command cgc;
         unsigned char buf[12];
@@ -2071,7 +2073,8 @@ static int pkt_probe_settings(struct pktcdvd_device *pd)
 /*
  * enable/disable write caching on drive
  */
-static int pkt_write_caching(struct pktcdvd_device *pd, int set)
+static noinline_for_stack int pkt_write_caching(struct pktcdvd_device *pd,
+                                                int set)
 {
         struct packet_command cgc;
         struct request_sense sense;
@@ -2116,7 +2119,8 @@ static int pkt_lock_door(struct pktcdvd_device *pd, int lockflag)
 /*
  * Returns drive maximum write speed
  */
-static int pkt_get_max_speed(struct pktcdvd_device *pd, unsigned *write_speed)
+static noinline_for_stack int pkt_get_max_speed(struct pktcdvd_device *pd,
+                                                unsigned *write_speed)
 {
         struct packet_command cgc;
         struct request_sense sense;
@@ -2177,7 +2181,8 @@ static char us_clv_to_speed[16] = {
 /*
  * reads the maximum media speed from ATIP
  */
-static int pkt_media_speed(struct pktcdvd_device *pd, unsigned *speed)
+static noinline_for_stack int pkt_media_speed(struct pktcdvd_device *pd,
+                                                unsigned *speed)
 {
         struct packet_command cgc;
         struct request_sense sense;
@@ -2249,7 +2254,7 @@ static int pkt_media_speed(struct pktcdvd_device *pd, unsigned *speed)
         }
 }
 
-static int pkt_perform_opc(struct pktcdvd_device *pd)
+static noinline_for_stack int pkt_perform_opc(struct pktcdvd_device *pd)
 {
         struct packet_command cgc;
         struct request_sense sense;
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index db259e60289b..12f5baea439b 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -1152,8 +1152,8 @@ clean_up_and_return:
 /* This code is similar to that in open_for_data. The routine is called
    whenever an audio play operation is requested.
 */
-int check_for_audio_disc(struct cdrom_device_info * cdi,
-                         struct cdrom_device_ops * cdo)
+static int check_for_audio_disc(struct cdrom_device_info * cdi,
+                                struct cdrom_device_ops * cdo)
 {
         int ret;
         tracktype tracks;
diff --git a/drivers/char/defkeymap.c_shipped b/drivers/char/defkeymap.c_shipped
index 0aa419a61767..d2208dfe3f67 100644
--- a/drivers/char/defkeymap.c_shipped
+++ b/drivers/char/defkeymap.c_shipped
@@ -223,40 +223,40 @@ char *func_table[MAX_NR_FUNC] = {
 };
 
 struct kbdiacruc accent_table[MAX_DIACR] = {
-        {'`', 'A', '\300'},     {'`', 'a', '\340'},
-        {'\'', 'A', '\301'},    {'\'', 'a', '\341'},
-        {'^', 'A', '\302'},     {'^', 'a', '\342'},
-        {'~', 'A', '\303'},     {'~', 'a', '\343'},
-        {'"', 'A', '\304'},     {'"', 'a', '\344'},
-        {'O', 'A', '\305'},     {'o', 'a', '\345'},
-        {'0', 'A', '\305'},     {'0', 'a', '\345'},
-        {'A', 'A', '\305'},     {'a', 'a', '\345'},
-        {'A', 'E', '\306'},     {'a', 'e', '\346'},
-        {',', 'C', '\307'},     {',', 'c', '\347'},
-        {'`', 'E', '\310'},     {'`', 'e', '\350'},
-        {'\'', 'E', '\311'},    {'\'', 'e', '\351'},
-        {'^', 'E', '\312'},     {'^', 'e', '\352'},
-        {'"', 'E', '\313'},     {'"', 'e', '\353'},
-        {'`', 'I', '\314'},     {'`', 'i', '\354'},
-        {'\'', 'I', '\315'},    {'\'', 'i', '\355'},
-        {'^', 'I', '\316'},     {'^', 'i', '\356'},
-        {'"', 'I', '\317'},     {'"', 'i', '\357'},
-        {'-', 'D', '\320'},     {'-', 'd', '\360'},
-        {'~', 'N', '\321'},     {'~', 'n', '\361'},
-        {'`', 'O', '\322'},     {'`', 'o', '\362'},
-        {'\'', 'O', '\323'},    {'\'', 'o', '\363'},
-        {'^', 'O', '\324'},     {'^', 'o', '\364'},
-        {'~', 'O', '\325'},     {'~', 'o', '\365'},
-        {'"', 'O', '\326'},     {'"', 'o', '\366'},
-        {'/', 'O', '\330'},     {'/', 'o', '\370'},
-        {'`', 'U', '\331'},     {'`', 'u', '\371'},
-        {'\'', 'U', '\332'},    {'\'', 'u', '\372'},
-        {'^', 'U', '\333'},     {'^', 'u', '\373'},
-        {'"', 'U', '\334'},     {'"', 'u', '\374'},
-        {'\'', 'Y', '\335'},    {'\'', 'y', '\375'},
-        {'T', 'H', '\336'},     {'t', 'h', '\376'},
-        {'s', 's', '\337'},     {'"', 'y', '\377'},
-        {'s', 'z', '\337'},     {'i', 'j', '\377'},
+        {'`', 'A', 0300},       {'`', 'a', 0340},
+        {'\'', 'A', 0301},      {'\'', 'a', 0341},
+        {'^', 'A', 0302},       {'^', 'a', 0342},
+        {'~', 'A', 0303},       {'~', 'a', 0343},
+        {'"', 'A', 0304},       {'"', 'a', 0344},
+        {'O', 'A', 0305},       {'o', 'a', 0345},
+        {'0', 'A', 0305},       {'0', 'a', 0345},
+        {'A', 'A', 0305},       {'a', 'a', 0345},
+        {'A', 'E', 0306},       {'a', 'e', 0346},
+        {',', 'C', 0307},       {',', 'c', 0347},
+        {'`', 'E', 0310},       {'`', 'e', 0350},
+        {'\'', 'E', 0311},      {'\'', 'e', 0351},
+        {'^', 'E', 0312},       {'^', 'e', 0352},
+        {'"', 'E', 0313},       {'"', 'e', 0353},
+        {'`', 'I', 0314},       {'`', 'i', 0354},
+        {'\'', 'I', 0315},      {'\'', 'i', 0355},
+        {'^', 'I', 0316},       {'^', 'i', 0356},
+        {'"', 'I', 0317},       {'"', 'i', 0357},
+        {'-', 'D', 0320},       {'-', 'd', 0360},
+        {'~', 'N', 0321},       {'~', 'n', 0361},
+        {'`', 'O', 0322},       {'`', 'o', 0362},
+        {'\'', 'O', 0323},      {'\'', 'o', 0363},
+        {'^', 'O', 0324},       {'^', 'o', 0364},
+        {'~', 'O', 0325},       {'~', 'o', 0365},
+        {'"', 'O', 0326},       {'"', 'o', 0366},
+        {'/', 'O', 0330},       {'/', 'o', 0370},
+        {'`', 'U', 0331},       {'`', 'u', 0371},
+        {'\'', 'U', 0332},      {'\'', 'u', 0372},
+        {'^', 'U', 0333},       {'^', 'u', 0373},
+        {'"', 'U', 0334},       {'"', 'u', 0374},
+        {'\'', 'Y', 0335},      {'\'', 'y', 0375},
+        {'T', 'H', 0336},       {'t', 'h', 0376},
+        {'s', 's', 0337},       {'"', 'y', 0377},
+        {'s', 'z', 0337},       {'i', 'j', 0377},
 };
 
 unsigned int accent_table_size = 68;
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 85d596a3c18c..eba2883b630e 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -1527,7 +1527,7 @@ static int __devinit reset_card(struct pci_dev *pdev,
         msleep(10);
 
         portcount = inw(base + 0x2);
-        if (!inw(base + 0xe) & 0x1 || (portcount != 0 && portcount != 4 &&
+        if (!(inw(base + 0xe) & 0x1) || (portcount != 0 && portcount != 4 &&
                                 portcount != 8 && portcount != 16)) {
                 dev_err(&pdev->dev, "ISILoad:PCI Card%d reset failure.\n",
                         card + 1);
diff --git a/drivers/char/pcmcia/ipwireless/network.c b/drivers/char/pcmcia/ipwireless/network.c
index ff35230058d3..d793e68b3e0d 100644
--- a/drivers/char/pcmcia/ipwireless/network.c
+++ b/drivers/char/pcmcia/ipwireless/network.c
@@ -377,13 +377,16 @@ void ipwireless_network_packet_received(struct ipw_network *network,
         for (i = 0; i < MAX_ASSOCIATED_TTYS; i++) {
                 struct ipw_tty *tty = network->associated_ttys[channel_idx][i];
 
+                if (!tty)
+                        continue;
+
                 /*
                  * If it's associated with a tty (other than the RAS channel
                  * when we're online), then send the data to that tty.  The RAS
                  * channel's data is handled above - it always goes through
                  * ppp_generic.
                  */
-                if (tty && channel_idx == IPW_CHANNEL_RAS
+                if (channel_idx == IPW_CHANNEL_RAS
                                 && (network->ras_control_lines &
                                         IPW_CONTROL_LINE_DCD) != 0
                                 && ipwireless_tty_is_modem(tty)) {
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index 78b151c4d20f..5c3142b6f1fc 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -110,8 +110,8 @@ static int rtc_has_irq = 1;
 #define hpet_set_rtc_irq_bit(arg)               0
 #define hpet_rtc_timer_init()                   do { } while (0)
 #define hpet_rtc_dropped_irq()                  0
-#define hpet_register_irq_handler(h)            0
-#define hpet_unregister_irq_handler(h)          0
+#define hpet_register_irq_handler(h)            ({ 0; })
+#define hpet_unregister_irq_handler(h)          ({ 0; })
 #ifdef RTC_IRQ
 static irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
 {
diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
index c0e08c7bca2f..5ff83df67b44 100644
--- a/drivers/char/specialix.c
+++ b/drivers/char/specialix.c
@@ -2109,7 +2109,6 @@ static void sx_throttle(struct tty_struct * tty)
         sx_out(bp, CD186x_CAR, port_No(port));
         spin_unlock_irqrestore(&bp->lock, flags);
         if (I_IXOFF(tty)) {
-                spin_unlock_irqrestore(&bp->lock, flags);
                 sx_wait_CCR(bp);
                 spin_lock_irqsave(&bp->lock, flags);
                 sx_out(bp, CD186x_CCR, CCR_SSCH2);
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 367be9175061..9b58b894f823 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -702,6 +702,7 @@ void redraw_screen(struct vc_data *vc, int is_switch)
         if (is_switch) {
                 set_leds();
                 compute_shiftstate();
+                notify_update(vc);
         }
 }
 
diff --git a/drivers/char/xilinx_hwicap/buffer_icap.c b/drivers/char/xilinx_hwicap/buffer_icap.c
index dfea2bde162b..f577daedb630 100644
--- a/drivers/char/xilinx_hwicap/buffer_icap.c
+++ b/drivers/char/xilinx_hwicap/buffer_icap.c
@@ -73,8 +73,8 @@
 #define XHI_BUFFER_START 0
 
 /**
- * buffer_icap_get_status: Get the contents of the status register.
- * @parameter base_address: is the base address of the device
+ * buffer_icap_get_status - Get the contents of the status register.
+ * @base_address: is the base address of the device
  *
  * The status register contains the ICAP status and the done bit.
  *
@@ -94,9 +94,9 @@ static inline u32 buffer_icap_get_status(void __iomem *base_address)
 }
 
 /**
- * buffer_icap_get_bram: Reads data from the storage buffer bram.
- * @parameter base_address: contains the base address of the component.
- * @parameter offset: The word offset from which the data should be read.
+ * buffer_icap_get_bram - Reads data from the storage buffer bram.
+ * @base_address: contains the base address of the component.
+ * @offset: The word offset from which the data should be read.
  *
  * A bram is used as a configuration memory cache.  One frame of data can
  * be stored in this "storage buffer".
@@ -108,8 +108,8 @@ static inline u32 buffer_icap_get_bram(void __iomem *base_address,
 }
 
 /**
- * buffer_icap_busy: Return true if the icap device is busy
- * @parameter base_address: is the base address of the device
+ * buffer_icap_busy - Return true if the icap device is busy
+ * @base_address: is the base address of the device
  *
  * The queries the low order bit of the status register, which
  * indicates whether the current configuration or readback operation
@@ -121,8 +121,8 @@ static inline bool buffer_icap_busy(void __iomem *base_address)
 }
 
 /**
- * buffer_icap_busy: Return true if the icap device is not busy
- * @parameter base_address: is the base address of the device
+ * buffer_icap_busy - Return true if the icap device is not busy
+ * @base_address: is the base address of the device
  *
  * The queries the low order bit of the status register, which
  * indicates whether the current configuration or readback operation
@@ -134,9 +134,9 @@ static inline bool buffer_icap_done(void __iomem *base_address)
 }
 
 /**
- * buffer_icap_set_size: Set the size register.
- * @parameter base_address: is the base address of the device
- * @parameter data: The size in bytes.
+ * buffer_icap_set_size - Set the size register.
+ * @base_address: is the base address of the device
+ * @data: The size in bytes.
  *
  * The size register holds the number of 8 bit bytes to transfer between
  * bram and the icap (or icap to bram).
@@ -148,9 +148,9 @@ static inline void buffer_icap_set_size(void __iomem *base_address,
 }
 
 /**
- * buffer_icap_mSetoffsetReg: Set the bram offset register.
- * @parameter base_address: contains the base address of the device.
- * @parameter data: is the value to be written to the data register.
+ * buffer_icap_set_offset - Set the bram offset register.
+ * @base_address: contains the base address of the device.
+ * @data: is the value to be written to the data register.
  *
  * The bram offset register holds the starting bram address to transfer
  * data from during configuration or write data to during readback.
@@ -162,9 +162,9 @@ static inline void buffer_icap_set_offset(void __iomem *base_address,
 }
 
 /**
- * buffer_icap_set_rnc: Set the RNC (Readback not Configure) register.
- * @parameter base_address: contains the base address of the device.
- * @parameter data: is the value to be written to the data register.
+ * buffer_icap_set_rnc - Set the RNC (Readback not Configure) register.
+ * @base_address: contains the base address of the device.
+ * @data: is the value to be written to the data register.
  *
  * The RNC register determines the direction of the data transfer.  It
  * controls whether a configuration or readback take place.  Writing to
@@ -178,10 +178,10 @@ static inline void buffer_icap_set_rnc(void __iomem *base_address,
 }
 
 /**
- * buffer_icap_set_bram: Write data to the storage buffer bram.
- * @parameter base_address: contains the base address of the component.
- * @parameter offset: The word offset at which the data should be written.
- * @parameter data: The value to be written to the bram offset.
+ * buffer_icap_set_bram - Write data to the storage buffer bram.
+ * @base_address: contains the base address of the component.
+ * @offset: The word offset at which the data should be written.
+ * @data: The value to be written to the bram offset.
  *
  * A bram is used as a configuration memory cache.  One frame of data can
  * be stored in this "storage buffer".
@@ -193,10 +193,10 @@ static inline void buffer_icap_set_bram(void __iomem *base_address,
 }
 
 /**
- * buffer_icap_device_read: Transfer bytes from ICAP to the storage buffer.
- * @parameter drvdata: a pointer to the drvdata.
- * @parameter offset: The storage buffer start address.
- * @parameter count: The number of words (32 bit) to read from the
+ * buffer_icap_device_read - Transfer bytes from ICAP to the storage buffer.
+ * @drvdata: a pointer to the drvdata.
+ * @offset: The storage buffer start address.
+ * @count: The number of words (32 bit) to read from the
  *           device (ICAP).
  **/
 static int buffer_icap_device_read(struct hwicap_drvdata *drvdata,
@@ -227,10 +227,10 @@ static int buffer_icap_device_read(struct hwicap_drvdata *drvdata,
 };
 
 /**
- * buffer_icap_device_write: Transfer bytes from ICAP to the storage buffer.
- * @parameter drvdata: a pointer to the drvdata.
- * @parameter offset: The storage buffer start address.
- * @parameter count: The number of words (32 bit) to read from the
+ * buffer_icap_device_write - Transfer bytes from ICAP to the storage buffer.
+ * @drvdata: a pointer to the drvdata.
+ * @offset: The storage buffer start address.
+ * @count: The number of words (32 bit) to read from the
  *           device (ICAP).
  **/
 static int buffer_icap_device_write(struct hwicap_drvdata *drvdata,
@@ -261,8 +261,8 @@ static int buffer_icap_device_write(struct hwicap_drvdata *drvdata,
 };
 
 /**
- * buffer_icap_reset: Reset the logic of the icap device.
- * @parameter drvdata: a pointer to the drvdata.
+ * buffer_icap_reset - Reset the logic of the icap device.
+ * @drvdata: a pointer to the drvdata.
  *
  * Writing to the status register resets the ICAP logic in an internal
  * version of the core.  For the version of the core published in EDK,
@@ -274,10 +274,10 @@ void buffer_icap_reset(struct hwicap_drvdata *drvdata)
 }
 
 /**
- * buffer_icap_set_configuration: Load a partial bitstream from system memory.
- * @parameter drvdata: a pointer to the drvdata.
- * @parameter data: Kernel address of the partial bitstream.
- * @parameter size: the size of the partial bitstream in 32 bit words.
+ * buffer_icap_set_configuration - Load a partial bitstream from system memory.
+ * @drvdata: a pointer to the drvdata.
+ * @data: Kernel address of the partial bitstream.
+ * @size: the size of the partial bitstream in 32 bit words.
  **/
 int buffer_icap_set_configuration(struct hwicap_drvdata *drvdata, u32 *data,
                              u32 size)
@@ -333,10 +333,10 @@ int buffer_icap_set_configuration(struct hwicap_drvdata *drvdata, u32 *data,
 };
 
 /**
- * buffer_icap_get_configuration: Read configuration data from the device.
- * @parameter drvdata: a pointer to the drvdata.
- * @parameter data: Address of the data representing the partial bitstream
- * @parameter size: the size of the partial bitstream in 32 bit words.
+ * buffer_icap_get_configuration - Read configuration data from the device.
+ * @drvdata: a pointer to the drvdata.
+ * @data: Address of the data representing the partial bitstream
+ * @size: the size of the partial bitstream in 32 bit words.
  **/
 int buffer_icap_get_configuration(struct hwicap_drvdata *drvdata, u32 *data,
                              u32 size)
diff --git a/drivers/char/xilinx_hwicap/fifo_icap.c b/drivers/char/xilinx_hwicap/fifo_icap.c
index 0988314694a6..6f45dbd47125 100644
--- a/drivers/char/xilinx_hwicap/fifo_icap.c
+++ b/drivers/char/xilinx_hwicap/fifo_icap.c
@@ -94,9 +94,9 @@
 
 
 /**
- * fifo_icap_fifo_write: Write data to the write FIFO.
- * @parameter drvdata: a pointer to the drvdata.
- * @parameter data: the 32-bit value to be written to the FIFO.
+ * fifo_icap_fifo_write - Write data to the write FIFO.
+ * @drvdata: a pointer to the drvdata.
+ * @data: the 32-bit value to be written to the FIFO.
  *
  * This function will silently fail if the fifo is full.
  **/
@@ -108,8 +108,8 @@ static inline void fifo_icap_fifo_write(struct hwicap_drvdata *drvdata,
 }
 
 /**
- * fifo_icap_fifo_read: Read data from the Read FIFO.
- * @parameter drvdata: a pointer to the drvdata.
+ * fifo_icap_fifo_read - Read data from the Read FIFO.
+ * @drvdata: a pointer to the drvdata.
  *
  * This function will silently fail if the fifo is empty.
  **/
@@ -121,9 +121,9 @@ static inline u32 fifo_icap_fifo_read(struct hwicap_drvdata *drvdata)
 }
 
 /**
- * fifo_icap_set_read_size: Set the the size register.
- * @parameter drvdata: a pointer to the drvdata.
- * @parameter data: the size of the following read transaction, in words.
+ * fifo_icap_set_read_size - Set the the size register.
+ * @drvdata: a pointer to the drvdata.
+ * @data: the size of the following read transaction, in words.
  **/
 static inline void fifo_icap_set_read_size(struct hwicap_drvdata *drvdata,
                 u32 data)
@@ -132,8 +132,8 @@ static inline void fifo_icap_set_read_size(struct hwicap_drvdata *drvdata,
 }
 
 /**
- * fifo_icap_start_config: Initiate a configuration (write) to the device.
- * @parameter drvdata: a pointer to the drvdata.
+ * fifo_icap_start_config - Initiate a configuration (write) to the device.
+ * @drvdata: a pointer to the drvdata.
  **/
 static inline void fifo_icap_start_config(struct hwicap_drvdata *drvdata)
 {
@@ -142,8 +142,8 @@ static inline void fifo_icap_start_config(struct hwicap_drvdata *drvdata)
 }
 
 /**
- * fifo_icap_start_readback: Initiate a readback from the device.
- * @parameter drvdata: a pointer to the drvdata.
+ * fifo_icap_start_readback - Initiate a readback from the device.
+ * @drvdata: a pointer to the drvdata.
  **/
 static inline void fifo_icap_start_readback(struct hwicap_drvdata *drvdata)
 {
@@ -152,8 +152,8 @@ static inline void fifo_icap_start_readback(struct hwicap_drvdata *drvdata)
 }
 
 /**
- * fifo_icap_busy: Return true if the ICAP is still processing a transaction.
- * @parameter drvdata: a pointer to the drvdata.
+ * fifo_icap_busy - Return true if the ICAP is still processing a transaction.
+ * @drvdata: a pointer to the drvdata.
  **/
 static inline u32 fifo_icap_busy(struct hwicap_drvdata *drvdata)
 {
@@ -163,8 +163,8 @@ static inline u32 fifo_icap_busy(struct hwicap_drvdata *drvdata)
 }
 
 /**
- * fifo_icap_write_fifo_vacancy: Query the write fifo available space.
- * @parameter drvdata: a pointer to the drvdata.
+ * fifo_icap_write_fifo_vacancy - Query the write fifo available space.
+ * @drvdata: a pointer to the drvdata.
  *
  * Return the number of words that can be safely pushed into the write fifo.
  **/
@@ -175,8 +175,8 @@ static inline u32 fifo_icap_write_fifo_vacancy(
 }
 
 /**
- * fifo_icap_read_fifo_occupancy: Query the read fifo available data.
- * @parameter drvdata: a pointer to the drvdata.
+ * fifo_icap_read_fifo_occupancy - Query the read fifo available data.
+ * @drvdata: a pointer to the drvdata.
  *
  * Return the number of words that can be safely read from the read fifo.
  **/
@@ -187,11 +187,11 @@ static inline u32 fifo_icap_read_fifo_occupancy(
 }
 
 /**
- * fifo_icap_set_configuration: Send configuration data to the ICAP.
- * @parameter drvdata: a pointer to the drvdata.
- * @parameter frame_buffer: a pointer to the data to be written to the
+ * fifo_icap_set_configuration - Send configuration data to the ICAP.
+ * @drvdata: a pointer to the drvdata.
+ * @frame_buffer: a pointer to the data to be written to the
  *              ICAP device.
- * @parameter num_words: the number of words (32 bit) to write to the ICAP
+ * @num_words: the number of words (32 bit) to write to the ICAP
  *              device.
 
  * This function writes the given user data to the Write FIFO in
@@ -266,10 +266,10 @@ int fifo_icap_set_configuration(struct hwicap_drvdata *drvdata,
 }
 
 /**
- * fifo_icap_get_configuration: Read configuration data from the device.
- * @parameter drvdata: a pointer to the drvdata.
- * @parameter data: Address of the data representing the partial bitstream
- * @parameter size: the size of the partial bitstream in 32 bit words.
+ * fifo_icap_get_configuration - Read configuration data from the device.
+ * @drvdata: a pointer to the drvdata.
+ * @data: Address of the data representing the partial bitstream
+ * @size: the size of the partial bitstream in 32 bit words.
  *
  * This function reads the specified number of words from the ICAP device in
  * the polled mode.
@@ -335,8 +335,8 @@ int fifo_icap_get_configuration(struct hwicap_drvdata *drvdata,
 }
 
 /**
- * buffer_icap_reset: Reset the logic of the icap device.
- * @parameter drvdata: a pointer to the drvdata.
+ * buffer_icap_reset - Reset the logic of the icap device.
+ * @drvdata: a pointer to the drvdata.
  *
  * This function forces the software reset of the complete HWICAP device.
  * All the registers will return to the default value and the FIFO is also
@@ -360,8 +360,8 @@ void fifo_icap_reset(struct hwicap_drvdata *drvdata)
 }
 
 /**
- * fifo_icap_flush_fifo: This function flushes the FIFOs in the device.
- * @parameter drvdata: a pointer to the drvdata.
+ * fifo_icap_flush_fifo - This function flushes the FIFOs in the device.
+ * @drvdata: a pointer to the drvdata.
  */
 void fifo_icap_flush_fifo(struct hwicap_drvdata *drvdata)
 {
diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
index 24f6aef0fd3c..2284fa2a5a57 100644
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
@@ -84,7 +84,7 @@
 #include <linux/init.h>
 #include <linux/poll.h>
 #include <linux/proc_fs.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 #include <linux/sysctl.h>
 #include <linux/version.h>
 #include <linux/fs.h>
@@ -119,6 +119,7 @@ module_param(xhwicap_minor, int, S_IRUGO);
 
 /* An array, which is set to true when the device is registered. */
 static bool probed_devices[HWICAP_DEVICES];
+static struct mutex icap_sem;
 
 static struct class *icap_class;
 
@@ -199,14 +200,14 @@ static const struct config_registers v5_config_registers = {
 };
 
 /**
- * hwicap_command_desync: Send a DESYNC command to the ICAP port.
- * @parameter drvdata: a pointer to the drvdata.
+ * hwicap_command_desync - Send a DESYNC command to the ICAP port.
+ * @drvdata: a pointer to the drvdata.
  *
  * This command desynchronizes the ICAP After this command, a
  * bitstream containing a NULL packet, followed by a SYNCH packet is
  * required before the ICAP will recognize commands.
  */
-int hwicap_command_desync(struct hwicap_drvdata *drvdata)
+static int hwicap_command_desync(struct hwicap_drvdata *drvdata)
 {
         u32 buffer[4];
         u32 index = 0;
@@ -228,51 +229,18 @@ int hwicap_command_desync(struct hwicap_drvdata *drvdata)
 }
 
 /**
- * hwicap_command_capture: Send a CAPTURE command to the ICAP port.
- * @parameter drvdata: a pointer to the drvdata.
- *
- * This command captures all of the flip flop states so they will be
- * available during readback.  One can use this command instead of
- * enabling the CAPTURE block in the design.
- */
-int hwicap_command_capture(struct hwicap_drvdata *drvdata)
-{
-        u32 buffer[7];
-        u32 index = 0;
-
-        /*
-         * Create the data to be written to the ICAP.
-         */
-        buffer[index++] = XHI_DUMMY_PACKET;
-        buffer[index++] = XHI_SYNC_PACKET;
-        buffer[index++] = XHI_NOOP_PACKET;
-        buffer[index++] = hwicap_type_1_write(drvdata->config_regs->CMD) | 1;
-        buffer[index++] = XHI_CMD_GCAPTURE;
-        buffer[index++] = XHI_DUMMY_PACKET;
-        buffer[index++] = XHI_DUMMY_PACKET;
-
-        /*
-         * Write the data to the FIFO and intiate the transfer of data
-         * present in the FIFO to the ICAP device.
-         */
-        return drvdata->config->set_configuration(drvdata,
-                        &buffer[0], index);
-
-}
-
-/**
- * hwicap_get_configuration_register: Query a configuration register.
- * @parameter drvdata: a pointer to the drvdata.
- * @parameter reg: a constant which represents the configuration
+ * hwicap_get_configuration_register - Query a configuration register.
+ * @drvdata: a pointer to the drvdata.
+ * @reg: a constant which represents the configuration
  *              register value to be returned.
  *              Examples:  XHI_IDCODE, XHI_FLR.
- * @parameter RegData: returns the value of the register.
+ * @reg_data: returns the value of the register.
  *
  * Sends a query packet to the ICAP and then receives the response.
  * The icap is left in Synched state.
  */
-int hwicap_get_configuration_register(struct hwicap_drvdata *drvdata,
-                u32 reg, u32 *RegData)
+static int hwicap_get_configuration_register(struct hwicap_drvdata *drvdata,
+                u32 reg, u32 *reg_data)
 {
         int status;
         u32 buffer[6];
@@ -300,14 +268,14 @@ int hwicap_get_configuration_register(struct hwicap_drvdata *drvdata,
         /*
          * Read the configuration register
          */
-        status = drvdata->config->get_configuration(drvdata, RegData, 1);
+        status = drvdata->config->get_configuration(drvdata, reg_data, 1);
         if (status)
                 return status;
 
         return 0;
 }
 
-int hwicap_initialize_hwicap(struct hwicap_drvdata *drvdata)
+static int hwicap_initialize_hwicap(struct hwicap_drvdata *drvdata)
 {
         int status;
         u32 idcode;
@@ -344,7 +312,7 @@ int hwicap_initialize_hwicap(struct hwicap_drvdata *drvdata)
 }
 
 static ssize_t
-hwicap_read(struct file *file, char *buf, size_t count, loff_t *ppos)
+hwicap_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 {
         struct hwicap_drvdata *drvdata = file->private_data;
         ssize_t bytes_to_read = 0;
@@ -353,8 +321,9 @@ hwicap_read(struct file *file, char *buf, size_t count, loff_t *ppos)
         u32 bytes_remaining;
         int status;
 
-        if (down_interruptible(&drvdata->sem))
-                return -ERESTARTSYS;
+        status = mutex_lock_interruptible(&drvdata->sem);
+        if (status)
+                return status;
 
         if (drvdata->read_buffer_in_use) {
                 /* If there are leftover bytes in the buffer, just */
@@ -370,8 +339,9 @@ hwicap_read(struct file *file, char *buf, size_t count, loff_t *ppos)
                         goto error;
                 }
                 drvdata->read_buffer_in_use -= bytes_to_read;
-                memcpy(drvdata->read_buffer + bytes_to_read,
-                                drvdata->read_buffer, 4 - bytes_to_read);
+                memmove(drvdata->read_buffer,
+                       drvdata->read_buffer + bytes_to_read,
+                       4 - bytes_to_read);
         } else {
                 /* Get new data from the ICAP, and return was was requested. */
                 kbuf = (u32 *) get_zeroed_page(GFP_KERNEL);
@@ -414,18 +384,20 @@ hwicap_read(struct file *file, char *buf, size_t count, loff_t *ppos)
                         status = -EFAULT;
                         goto error;
                 }
-                memcpy(kbuf, drvdata->read_buffer, bytes_remaining);
+                memcpy(drvdata->read_buffer,
+                       kbuf,
+                       bytes_remaining);
                 drvdata->read_buffer_in_use = bytes_remaining;
                 free_page((unsigned long)kbuf);
         }
         status = bytes_to_read;
  error:
-        up(&drvdata->sem);
+        mutex_unlock(&drvdata->sem);
         return status;
 }
 
 static ssize_t
-hwicap_write(struct file *file, const char *buf,
+hwicap_write(struct file *file, const char __user *buf,
                 size_t count, loff_t *ppos)
 {
         struct hwicap_drvdata *drvdata = file->private_data;
@@ -435,8 +407,9 @@ hwicap_write(struct file *file, const char *buf,
         ssize_t len;
         ssize_t status;
 
-        if (down_interruptible(&drvdata->sem))
-                return -ERESTARTSYS;
+        status = mutex_lock_interruptible(&drvdata->sem);
+        if (status)
+                return status;
 
         left += drvdata->write_buffer_in_use;
 
@@ -465,7 +438,7 @@ hwicap_write(struct file *file, const char *buf,
                         memcpy(kbuf, drvdata->write_buffer,
                                         drvdata->write_buffer_in_use);
                         if (copy_from_user(
-                            (((char *)kbuf) + (drvdata->write_buffer_in_use)),
+                            (((char *)kbuf) + drvdata->write_buffer_in_use),
                             buf + written,
                             len - (drvdata->write_buffer_in_use))) {
                                 free_page((unsigned long)kbuf);
@@ -508,7 +481,7 @@ hwicap_write(struct file *file, const char *buf,
         free_page((unsigned long)kbuf);
         status = written;
  error:
-        up(&drvdata->sem);
+        mutex_unlock(&drvdata->sem);
         return status;
 }
 
@@ -519,8 +492,9 @@ static int hwicap_open(struct inode *inode, struct file *file)
 
         drvdata = container_of(inode->i_cdev, struct hwicap_drvdata, cdev);
 
-        if (down_interruptible(&drvdata->sem))
-                return -ERESTARTSYS;
+        status = mutex_lock_interruptible(&drvdata->sem);
+        if (status)
+                return status;
 
         if (drvdata->is_open) {
                 status = -EBUSY;
@@ -539,7 +513,7 @@ static int hwicap_open(struct inode *inode, struct file *file)
         drvdata->is_open = 1;
 
  error:
-        up(&drvdata->sem);
+        mutex_unlock(&drvdata->sem);
         return status;
 }
 
@@ -549,8 +523,7 @@ static int hwicap_release(struct inode *inode, struct file *file)
         int i;
         int status = 0;
 
-        if (down_interruptible(&drvdata->sem))
-                return -ERESTARTSYS;
+        mutex_lock(&drvdata->sem);
 
         if (drvdata->write_buffer_in_use) {
                 /* Flush write buffer. */
@@ -569,7 +542,7 @@ static int hwicap_release(struct inode *inode, struct file *file)
 
  error:
         drvdata->is_open = 0;
-        up(&drvdata->sem);
+        mutex_unlock(&drvdata->sem);
         return status;
 }
 
@@ -592,31 +565,36 @@ static int __devinit hwicap_setup(struct device *dev, int id,
 
         dev_info(dev, "Xilinx icap port driver\n");
 
+        mutex_lock(&icap_sem);
+
         if (id < 0) {
                 for (id = 0; id < HWICAP_DEVICES; id++)
                         if (!probed_devices[id])
                                 break;
         }
         if (id < 0 || id >= HWICAP_DEVICES) {
+                mutex_unlock(&icap_sem);
                 dev_err(dev, "%s%i too large\n", DRIVER_NAME, id);
                 return -EINVAL;
         }
         if (probed_devices[id]) {
+                mutex_unlock(&icap_sem);
                 dev_err(dev, "cannot assign to %s%i; it is already in use\n",
                         DRIVER_NAME, id);
                 return -EBUSY;
         }
 
         probed_devices[id] = 1;
+        mutex_unlock(&icap_sem);
 
         devt = MKDEV(xhwicap_major, xhwicap_minor + id);
 
-        drvdata = kmalloc(sizeof(struct hwicap_drvdata), GFP_KERNEL);
+        drvdata = kzalloc(sizeof(struct hwicap_drvdata), GFP_KERNEL);
         if (!drvdata) {
                 dev_err(dev, "Couldn't allocate device private record\n");
-                return -ENOMEM;
+                retval = -ENOMEM;
+                goto failed0;
         }
-        memset((void *)drvdata, 0, sizeof(struct hwicap_drvdata));
         dev_set_drvdata(dev, (void *)drvdata);
 
         if (!regs_res) {
@@ -648,7 +626,7 @@ static int __devinit hwicap_setup(struct device *dev, int id,
         drvdata->config = config;
         drvdata->config_regs = config_regs;
 
-        init_MUTEX(&drvdata->sem);
+        mutex_init(&drvdata->sem);
         drvdata->is_open = 0;
 
         dev_info(dev, "ioremap %lx to %p with size %x\n",
@@ -663,7 +641,7 @@ static int __devinit hwicap_setup(struct device *dev, int id,
                 goto failed3;
         }
         /*  devfs_mk_cdev(devt, S_IFCHR|S_IRUGO|S_IWUGO, DRIVER_NAME); */
-        class_device_create(icap_class, NULL, devt, NULL, DRIVER_NAME);
+        device_create(icap_class, dev, devt, "%s%d", DRIVER_NAME, id);
         return 0;               /* success */
 
  failed3:
@@ -675,6 +653,11 @@ static int __devinit hwicap_setup(struct device *dev, int id,
  failed1:
         kfree(drvdata);
 
+ failed0:
+        mutex_lock(&icap_sem);
+        probed_devices[id] = 0;
+        mutex_unlock(&icap_sem);
+
         return retval;
 }
 
@@ -699,14 +682,16 @@ static int __devexit hwicap_remove(struct device *dev)
         if (!drvdata)
                 return 0;
 
-        class_device_destroy(icap_class, drvdata->devt);
+        device_destroy(icap_class, drvdata->devt);
         cdev_del(&drvdata->cdev);
         iounmap(drvdata->base_address);
         release_mem_region(drvdata->mem_start, drvdata->mem_size);
         kfree(drvdata);
         dev_set_drvdata(dev, NULL);
-        probed_devices[MINOR(dev->devt)-xhwicap_minor] = 0;
 
+        mutex_lock(&icap_sem);
+        probed_devices[MINOR(dev->devt)-xhwicap_minor] = 0;
+        mutex_unlock(&icap_sem);
         return 0;               /* success */
 }
 
@@ -821,28 +806,29 @@ static struct of_platform_driver hwicap_of_driver = {
 };
 
 /* Registration helpers to keep the number of #ifdefs to a minimum */
-static inline int __devinit hwicap_of_register(void)
+static inline int __init hwicap_of_register(void)
 {
         pr_debug("hwicap: calling of_register_platform_driver()\n");
         return of_register_platform_driver(&hwicap_of_driver);
 }
 
-static inline void __devexit hwicap_of_unregister(void)
+static inline void __exit hwicap_of_unregister(void)
 {
         of_unregister_platform_driver(&hwicap_of_driver);
 }
 #else /* CONFIG_OF */
 /* CONFIG_OF not enabled; do nothing helpers */
-static inline int __devinit hwicap_of_register(void) { return 0; }
-static inline void __devexit hwicap_of_unregister(void) { }
+static inline int __init hwicap_of_register(void) { return 0; }
+static inline void __exit hwicap_of_unregister(void) { }
 #endif /* CONFIG_OF */
 
-static int __devinit hwicap_module_init(void)
+static int __init hwicap_module_init(void)
 {
         dev_t devt;
         int retval;
 
         icap_class = class_create(THIS_MODULE, "xilinx_config");
+        mutex_init(&icap_sem);
 
         if (xhwicap_major) {
                 devt = MKDEV(xhwicap_major, xhwicap_minor);
@@ -883,7 +869,7 @@ static int __devinit hwicap_module_init(void)
         return retval;
 }
 
-static void __devexit hwicap_module_cleanup(void)
+static void __exit hwicap_module_cleanup(void)
 {
         dev_t devt = MKDEV(xhwicap_major, xhwicap_minor);
 
diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.h b/drivers/char/xilinx_hwicap/xilinx_hwicap.h
index ae771cac1629..405fee7e189b 100644
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.h
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.h
@@ -48,9 +48,9 @@ struct hwicap_drvdata {
         u8 write_buffer[4];
         u32 read_buffer_in_use;   /* Always in [0,3] */
         u8 read_buffer[4];
-        u32 mem_start;            /* phys. address of the control registers */
-        u32 mem_end;              /* phys. address of the control registers */
-        u32 mem_size;
+        resource_size_t mem_start;/* phys. address of the control registers */
+        resource_size_t mem_end;  /* phys. address of the control registers */
+        resource_size_t mem_size;
         void __iomem *base_address;/* virt. address of the control registers */
 
         struct device *dev;
@@ -61,7 +61,7 @@ struct hwicap_drvdata {
         const struct config_registers *config_regs;
         void *private_data;
         bool is_open;
-        struct semaphore sem;
+        struct mutex sem;
 };
 
 struct hwicap_driver_config {
@@ -164,29 +164,29 @@ struct config_registers {
 #define XHI_DISABLED_AUTO_CRC       0x0000DEFCUL
 
 /**
- * hwicap_type_1_read: Generates a Type 1 read packet header.
- * @parameter: Register is the address of the register to be read back.
+ * hwicap_type_1_read - Generates a Type 1 read packet header.
+ * @reg: is the address of the register to be read back.
  *
  * Generates a Type 1 read packet header, which is used to indirectly
  * read registers in the configuration logic.  This packet must then
  * be sent through the icap device, and a return packet received with
  * the information.
  **/
-static inline u32 hwicap_type_1_read(u32 Register)
+static inline u32 hwicap_type_1_read(u32 reg)
 {
         return (XHI_TYPE_1 << XHI_TYPE_SHIFT) |
-                (Register << XHI_REGISTER_SHIFT) |
+                (reg << XHI_REGISTER_SHIFT) |
                 (XHI_OP_READ << XHI_OP_SHIFT);
 }
 
 /**
- * hwicap_type_1_write: Generates a Type 1 write packet header
- * @parameter: Register is the address of the register to be read back.
+ * hwicap_type_1_write - Generates a Type 1 write packet header
+ * @reg: is the address of the register to be read back.
  **/
-static inline u32 hwicap_type_1_write(u32 Register)
+static inline u32 hwicap_type_1_write(u32 reg)
 {
         return (XHI_TYPE_1 << XHI_TYPE_SHIFT) |
-                (Register << XHI_REGISTER_SHIFT) |
+                (reg << XHI_REGISTER_SHIFT) |
                 (XHI_OP_WRITE << XHI_OP_SHIFT);
 }
 
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index a703deffb795..27340a7b19dd 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -4,7 +4,7 @@
 
 menuconfig DMADEVICES
         bool "DMA Engine support"
-        depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
+        depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX || PPC
         depends on !HIGHMEM64G
         help
           DMA engines can do asynchronous data transfers without
@@ -37,6 +37,23 @@ config INTEL_IOP_ADMA
         help
           Enable support for the Intel(R) IOP Series RAID engines.
 
+config FSL_DMA
+        bool "Freescale MPC85xx/MPC83xx DMA support"
+        depends on PPC
+        select DMA_ENGINE
+        ---help---
+          Enable support for the Freescale DMA engine. Now, it support
+          MPC8560/40, MPC8555, MPC8548 and MPC8641 processors.
+          The MPC8349, MPC8360 is also supported.
+
+config FSL_DMA_SELFTEST
+        bool "Enable the self test for each DMA channel"
+        depends on FSL_DMA
+        default y
+        ---help---
+          Enable the self test for each DMA channel. A self test will be
+          performed after the channel probed to ensure the DMA works well.
+
 config DMA_ENGINE
         bool
 
diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
index b152cd84e123..c8036d945902 100644
--- a/drivers/dma/Makefile
+++ b/drivers/dma/Makefile
@@ -3,3 +3,4 @@ obj-$(CONFIG_NET_DMA) += iovlock.o
 obj-$(CONFIG_INTEL_IOATDMA) += ioatdma.o
 ioatdma-objs := ioat.o ioat_dma.o ioat_dca.o
 obj-$(CONFIG_INTEL_IOP_ADMA) += iop-adma.o
+obj-$(CONFIG_FSL_DMA) += fsldma.o
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
new file mode 100644
index 000000000000..cc9a68158d99
--- /dev/null
+++ b/drivers/dma/fsldma.c
@@ -0,0 +1,1067 @@
+/*
+ * Freescale MPC85xx, MPC83xx DMA Engine support
+ *
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author:
+ *   Zhang Wei <wei.zhang@freescale.com>, Jul 2007
+ *   Ebony Zhu <ebony.zhu@freescale.com>, May 2007
+ *
+ * Description:
+ *   DMA engine driver for Freescale MPC8540 DMA controller, which is
+ *   also fit for MPC8560, MPC8555, MPC8548, MPC8641, and etc.
+ *   The support for MPC8349 DMA contorller is also added.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/dmaengine.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmapool.h>
+#include <linux/of_platform.h>
+
+#include "fsldma.h"
+
+static void dma_init(struct fsl_dma_chan *fsl_chan)
+{
+        /* Reset the channel */
+        DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, 0, 32);
+
+        switch (fsl_chan->feature & FSL_DMA_IP_MASK) {
+        case FSL_DMA_IP_85XX:
+                /* Set the channel to below modes:
+                 * EIE - Error interrupt enable
+                 * EOSIE - End of segments interrupt enable (basic mode)
+                 * EOLNIE - End of links interrupt enable
+                 */
+                DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, FSL_DMA_MR_EIE
+                                | FSL_DMA_MR_EOLNIE | FSL_DMA_MR_EOSIE, 32);
+                break;
+        case FSL_DMA_IP_83XX:
+                /* Set the channel to below modes:
+                 * EOTIE - End-of-transfer interrupt enable
+                 */
+                DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, FSL_DMA_MR_EOTIE,
+                                32);
+                break;
+        }
+
+}
+
+static void set_sr(struct fsl_dma_chan *fsl_chan, dma_addr_t val)
+{
+        DMA_OUT(fsl_chan, &fsl_chan->reg_base->sr, val, 32);
+}
+
+static dma_addr_t get_sr(struct fsl_dma_chan *fsl_chan)
+{
+        return DMA_IN(fsl_chan, &fsl_chan->reg_base->sr, 32);
+}
+
+static void set_desc_cnt(struct fsl_dma_chan *fsl_chan,
+                                struct fsl_dma_ld_hw *hw, u32 count)
+{
+        hw->count = CPU_TO_DMA(fsl_chan, count, 32);
+}
+
+static void set_desc_src(struct fsl_dma_chan *fsl_chan,
+                                struct fsl_dma_ld_hw *hw, dma_addr_t src)
+{
+        u64 snoop_bits;
+
+        snoop_bits = ((fsl_chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX)
+                ? ((u64)FSL_DMA_SATR_SREADTYPE_SNOOP_READ << 32) : 0;
+        hw->src_addr = CPU_TO_DMA(fsl_chan, snoop_bits | src, 64);
+}
+
+static void set_desc_dest(struct fsl_dma_chan *fsl_chan,
+                                struct fsl_dma_ld_hw *hw, dma_addr_t dest)
+{
+        u64 snoop_bits;
+
+        snoop_bits = ((fsl_chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX)
+                ? ((u64)FSL_DMA_DATR_DWRITETYPE_SNOOP_WRITE << 32) : 0;
+        hw->dst_addr = CPU_TO_DMA(fsl_chan, snoop_bits | dest, 64);
+}
+
+static void set_desc_next(struct fsl_dma_chan *fsl_chan,
+                                struct fsl_dma_ld_hw *hw, dma_addr_t next)
+{
+        u64 snoop_bits;
+
+        snoop_bits = ((fsl_chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_83XX)
+                ? FSL_DMA_SNEN : 0;
+        hw->next_ln_addr = CPU_TO_DMA(fsl_chan, snoop_bits | next, 64);
+}
+
+static void set_cdar(struct fsl_dma_chan *fsl_chan, dma_addr_t addr)
+{
+        DMA_OUT(fsl_chan, &fsl_chan->reg_base->cdar, addr | FSL_DMA_SNEN, 64);
+}
+
+static dma_addr_t get_cdar(struct fsl_dma_chan *fsl_chan)
+{
+        return DMA_IN(fsl_chan, &fsl_chan->reg_base->cdar, 64) & ~FSL_DMA_SNEN;
+}
+
+static void set_ndar(struct fsl_dma_chan *fsl_chan, dma_addr_t addr)
+{
+        DMA_OUT(fsl_chan, &fsl_chan->reg_base->ndar, addr, 64);
+}
+
+static dma_addr_t get_ndar(struct fsl_dma_chan *fsl_chan)
+{
+        return DMA_IN(fsl_chan, &fsl_chan->reg_base->ndar, 64);
+}
+
+static int dma_is_idle(struct fsl_dma_chan *fsl_chan)
+{
+        u32 sr = get_sr(fsl_chan);
+        return (!(sr & FSL_DMA_SR_CB)) || (sr & FSL_DMA_SR_CH);
+}
+
+static void dma_start(struct fsl_dma_chan *fsl_chan)
+{
+        u32 mr_set = 0;;
+
+        if (fsl_chan->feature & FSL_DMA_CHAN_PAUSE_EXT) {
+                DMA_OUT(fsl_chan, &fsl_chan->reg_base->bcr, 0, 32);
+                mr_set |= FSL_DMA_MR_EMP_EN;
+        } else
+                DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr,
+                        DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32)
+                                & ~FSL_DMA_MR_EMP_EN, 32);
+
+        if (fsl_chan->feature & FSL_DMA_CHAN_START_EXT)
+                mr_set |= FSL_DMA_MR_EMS_EN;
+        else
+                mr_set |= FSL_DMA_MR_CS;
+
+        DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr,
+                        DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32)
+                        | mr_set, 32);
+}
+
+static void dma_halt(struct fsl_dma_chan *fsl_chan)
+{
+        int i = 0;
+        DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr,
+                DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) | FSL_DMA_MR_CA,
+                32);
+        DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr,
+                DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) & ~(FSL_DMA_MR_CS
+                | FSL_DMA_MR_EMS_EN | FSL_DMA_MR_CA), 32);
+
+        while (!dma_is_idle(fsl_chan) && (i++ < 100))
+                udelay(10);
+        if (i >= 100 && !dma_is_idle(fsl_chan))
+                dev_err(fsl_chan->dev, "DMA halt timeout!\n");
+}
+
+static void set_ld_eol(struct fsl_dma_chan *fsl_chan,
+                        struct fsl_desc_sw *desc)
+{
+        desc->hw.next_ln_addr = CPU_TO_DMA(fsl_chan,
+                DMA_TO_CPU(fsl_chan, desc->hw.next_ln_addr, 64) | FSL_DMA_EOL,
+                64);
+}
+
+static void append_ld_queue(struct fsl_dma_chan *fsl_chan,
+                struct fsl_desc_sw *new_desc)
+{
+        struct fsl_desc_sw *queue_tail = to_fsl_desc(fsl_chan->ld_queue.prev);
+
+        if (list_empty(&fsl_chan->ld_queue))
+                return;
+
+        /* Link to the new descriptor physical address and
+         * Enable End-of-segment interrupt for
+         * the last link descriptor.
+         * (the previous node's next link descriptor)
+         *
+         * For FSL_DMA_IP_83xx, the snoop enable bit need be set.
+         */
+        queue_tail->hw.next_ln_addr = CPU_TO_DMA(fsl_chan,
+                        new_desc->async_tx.phys | FSL_DMA_EOSIE |
+                        (((fsl_chan->feature & FSL_DMA_IP_MASK)
+                                == FSL_DMA_IP_83XX) ? FSL_DMA_SNEN : 0), 64);
+}
+
+/**
+ * fsl_chan_set_src_loop_size - Set source address hold transfer size
+ * @fsl_chan : Freescale DMA channel
+ * @size     : Address loop size, 0 for disable loop
+ *
+ * The set source address hold transfer size. The source
+ * address hold or loop transfer size is when the DMA transfer
+ * data from source address (SA), if the loop size is 4, the DMA will
+ * read data from SA, SA + 1, SA + 2, SA + 3, then loop back to SA,
+ * SA + 1 ... and so on.
+ */
+static void fsl_chan_set_src_loop_size(struct fsl_dma_chan *fsl_chan, int size)
+{
+        switch (size) {
+        case 0:
+                DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr,
+                        DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) &
+                        (~FSL_DMA_MR_SAHE), 32);
+                break;
+        case 1:
+        case 2:
+        case 4:
+        case 8:
+                DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr,
+                        DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) |
+                        FSL_DMA_MR_SAHE | (__ilog2(size) << 14),
+                        32);
+                break;
+        }
+}
+
+/**
+ * fsl_chan_set_dest_loop_size - Set destination address hold transfer size
+ * @fsl_chan : Freescale DMA channel
+ * @size     : Address loop size, 0 for disable loop
+ *
+ * The set destination address hold transfer size. The destination
+ * address hold or loop transfer size is when the DMA transfer
+ * data to destination address (TA), if the loop size is 4, the DMA will
+ * write data to TA, TA + 1, TA + 2, TA + 3, then loop back to TA,
+ * TA + 1 ... and so on.
+ */
+static void fsl_chan_set_dest_loop_size(struct fsl_dma_chan *fsl_chan, int size)
+{
+        switch (size) {
+        case 0:
+                DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr,
+                        DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) &
+                        (~FSL_DMA_MR_DAHE), 32);
+                break;
+        case 1:
+        case 2:
+        case 4:
+        case 8:
+                DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr,
+                        DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) |
+                        FSL_DMA_MR_DAHE | (__ilog2(size) << 16),
+                        32);
+                break;
+        }
+}
+
+/**
+ * fsl_chan_toggle_ext_pause - Toggle channel external pause status
+ * @fsl_chan : Freescale DMA channel
+ * @size     : Pause control size, 0 for disable external pause control.
+ *             The maximum is 1024.
+ *
+ * The Freescale DMA channel can be controlled by the external
+ * signal DREQ#. The pause control size is how many bytes are allowed
+ * to transfer before pausing the channel, after which a new assertion
+ * of DREQ# resumes channel operation.
+ */
+static void fsl_chan_toggle_ext_pause(struct fsl_dma_chan *fsl_chan, int size)
+{
+        if (size > 1024)
+                return;
+
+        if (size) {
+                DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr,
+                        DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32)
+                                | ((__ilog2(size) << 24) & 0x0f000000),
+                        32);
+                fsl_chan->feature |= FSL_DMA_CHAN_PAUSE_EXT;
+        } else
+                fsl_chan->feature &= ~FSL_DMA_CHAN_PAUSE_EXT;
+}
+
+/**
+ * fsl_chan_toggle_ext_start - Toggle channel external start status
+ * @fsl_chan : Freescale DMA channel
+ * @enable   : 0 is disabled, 1 is enabled.
+ *
+ * If enable the external start, the channel can be started by an
+ * external DMA start pin. So the dma_start() does not start the
+ * transfer immediately. The DMA channel will wait for the
+ * control pin asserted.
+ */
+static void fsl_chan_toggle_ext_start(struct fsl_dma_chan *fsl_chan, int enable)
+{
+        if (enable)
+                fsl_chan->feature |= FSL_DMA_CHAN_START_EXT;
+        else
+                fsl_chan->feature &= ~FSL_DMA_CHAN_START_EXT;
+}
+
+static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx)
+{
+        struct fsl_desc_sw *desc = tx_to_fsl_desc(tx);
+        struct fsl_dma_chan *fsl_chan = to_fsl_chan(tx->chan);
+        unsigned long flags;
+        dma_cookie_t cookie;
+
+        /* cookie increment and adding to ld_queue must be atomic */
+        spin_lock_irqsave(&fsl_chan->desc_lock, flags);
+
+        cookie = fsl_chan->common.cookie;
+        cookie++;
+        if (cookie < 0)
+                cookie = 1;
+        desc->async_tx.cookie = cookie;
+        fsl_chan->common.cookie = desc->async_tx.cookie;
+
+        append_ld_queue(fsl_chan, desc);
+        list_splice_init(&desc->async_tx.tx_list, fsl_chan->ld_queue.prev);
+
+        spin_unlock_irqrestore(&fsl_chan->desc_lock, flags);
+
+        return cookie;
+}
+
+/**
+ * fsl_dma_alloc_descriptor - Allocate descriptor from channel's DMA pool.
+ * @fsl_chan : Freescale DMA channel
+ *
+ * Return - The descriptor allocated. NULL for failed.
+ */
+static struct fsl_desc_sw *fsl_dma_alloc_descriptor(
+                                        struct fsl_dma_chan *fsl_chan)
+{
+        dma_addr_t pdesc;
+        struct fsl_desc_sw *desc_sw;
+
+        desc_sw = dma_pool_alloc(fsl_chan->desc_pool, GFP_ATOMIC, &pdesc);
+        if (desc_sw) {
+                memset(desc_sw, 0, sizeof(struct fsl_desc_sw));
+                dma_async_tx_descriptor_init(&desc_sw->async_tx,
+                                                &fsl_chan->common);
+                desc_sw->async_tx.tx_submit = fsl_dma_tx_submit;
+                INIT_LIST_HEAD(&desc_sw->async_tx.tx_list);
+                desc_sw->async_tx.phys = pdesc;
+        }
+
+        return desc_sw;
+}
+
+
+/**
+ * fsl_dma_alloc_chan_resources - Allocate resources for DMA channel.
+ * @fsl_chan : Freescale DMA channel
+ *
+ * This function will create a dma pool for descriptor allocation.
+ *
+ * Return - The number of descriptors allocated.
+ */
+static int fsl_dma_alloc_chan_resources(struct dma_chan *chan)
+{
+        struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan);
+        LIST_HEAD(tmp_list);
+
+        /* We need the descriptor to be aligned to 32bytes
+         * for meeting FSL DMA specification requirement.
+         */
+        fsl_chan->desc_pool = dma_pool_create("fsl_dma_engine_desc_pool",
+                        fsl_chan->dev, sizeof(struct fsl_desc_sw),
+                        32, 0);
+        if (!fsl_chan->desc_pool) {
+                dev_err(fsl_chan->dev, "No memory for channel %d "
+                        "descriptor dma pool.\n", fsl_chan->id);
+                return 0;
+        }
+
+        return 1;
+}
+
+/**
+ * fsl_dma_free_chan_resources - Free all resources of the channel.
+ * @fsl_chan : Freescale DMA channel
+ */
+static void fsl_dma_free_chan_resources(struct dma_chan *chan)
+{
+        struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan);
+        struct fsl_desc_sw *desc, *_desc;
+        unsigned long flags;
+
+        dev_dbg(fsl_chan->dev, "Free all channel resources.\n");
+        spin_lock_irqsave(&fsl_chan->desc_lock, flags);
+        list_for_each_entry_safe(desc, _desc, &fsl_chan->ld_queue, node) {
+#ifdef FSL_DMA_LD_DEBUG
+                dev_dbg(fsl_chan->dev,
+                                "LD %p will be released.\n", desc);
+#endif
+                list_del(&desc->node);
+                /* free link descriptor */
+                dma_pool_free(fsl_chan->desc_pool, desc, desc->async_tx.phys);
+        }
+        spin_unlock_irqrestore(&fsl_chan->desc_lock, flags);
+        dma_pool_destroy(fsl_chan->desc_pool);
+}
+
+static struct dma_async_tx_descriptor *fsl_dma_prep_memcpy(
+        struct dma_chan *chan, dma_addr_t dma_dest, dma_addr_t dma_src,
+        size_t len, unsigned long flags)
+{
+        struct fsl_dma_chan *fsl_chan;
+        struct fsl_desc_sw *first = NULL, *prev = NULL, *new;
+        size_t copy;
+        LIST_HEAD(link_chain);
+
+        if (!chan)
+                return NULL;
+
+        if (!len)
+                return NULL;
+
+        fsl_chan = to_fsl_chan(chan);
+
+        do {
+
+                /* Allocate the link descriptor from DMA pool */
+                new = fsl_dma_alloc_descriptor(fsl_chan);
+                if (!new) {
+                        dev_err(fsl_chan->dev,
+                                        "No free memory for link descriptor\n");
+                        return NULL;
+                }
+#ifdef FSL_DMA_LD_DEBUG
+                dev_dbg(fsl_chan->dev, "new link desc alloc %p\n", new);
+#endif
+
+                copy = min(len, FSL_DMA_BCR_MAX_CNT);
+
+                set_desc_cnt(fsl_chan, &new->hw, copy);
+                set_desc_src(fsl_chan, &new->hw, dma_src);
+                set_desc_dest(fsl_chan, &new->hw, dma_dest);
+
+                if (!first)
+                        first = new;
+                else
+                        set_desc_next(fsl_chan, &prev->hw, new->async_tx.phys);
+
+                new->async_tx.cookie = 0;
+                new->async_tx.ack = 1;
+
+                prev = new;
+                len -= copy;
+                dma_src += copy;
+                dma_dest += copy;
+
+                /* Insert the link descriptor to the LD ring */
+                list_add_tail(&new->node, &first->async_tx.tx_list);
+        } while (len);
+
+        new->async_tx.ack = 0; /* client is in control of this ack */
+        new->async_tx.cookie = -EBUSY;
+
+        /* Set End-of-link to the last link descriptor of new list*/
+        set_ld_eol(fsl_chan, new);
+
+        return first ? &first->async_tx : NULL;
+}
+
+/**
+ * fsl_dma_update_completed_cookie - Update the completed cookie.
+ * @fsl_chan : Freescale DMA channel
+ */
+static void fsl_dma_update_completed_cookie(struct fsl_dma_chan *fsl_chan)
+{
+        struct fsl_desc_sw *cur_desc, *desc;
+        dma_addr_t ld_phy;
+
+        ld_phy = get_cdar(fsl_chan) & FSL_DMA_NLDA_MASK;
+
+        if (ld_phy) {
+                cur_desc = NULL;
+                list_for_each_entry(desc, &fsl_chan->ld_queue, node)
+                        if (desc->async_tx.phys == ld_phy) {
+                                cur_desc = desc;
+                                break;
+                        }
+
+                if (cur_desc && cur_desc->async_tx.cookie) {
+                        if (dma_is_idle(fsl_chan))
+                                fsl_chan->completed_cookie =
+                                        cur_desc->async_tx.cookie;
+                        else
+                                fsl_chan->completed_cookie =
+                                        cur_desc->async_tx.cookie - 1;
+                }
+        }
+}
+
+/**
+ * fsl_chan_ld_cleanup - Clean up link descriptors
+ * @fsl_chan : Freescale DMA channel
+ *
+ * This function clean up the ld_queue of DMA channel.
+ * If 'in_intr' is set, the function will move the link descriptor to
+ * the recycle list. Otherwise, free it directly.
+ */
+static void fsl_chan_ld_cleanup(struct fsl_dma_chan *fsl_chan)
+{
+        struct fsl_desc_sw *desc, *_desc;
+        unsigned long flags;
+
+        spin_lock_irqsave(&fsl_chan->desc_lock, flags);
+
+        fsl_dma_update_completed_cookie(fsl_chan);
+        dev_dbg(fsl_chan->dev, "chan completed_cookie = %d\n",
+                        fsl_chan->completed_cookie);
+        list_for_each_entry_safe(desc, _desc, &fsl_chan->ld_queue, node) {
+                dma_async_tx_callback callback;
+                void *callback_param;
+
+                if (dma_async_is_complete(desc->async_tx.cookie,
+                            fsl_chan->completed_cookie, fsl_chan->common.cookie)
+                                == DMA_IN_PROGRESS)
+                        break;
+
+                callback = desc->async_tx.callback;
+                callback_param = desc->async_tx.callback_param;
+
+                /* Remove from ld_queue list */
+                list_del(&desc->node);
+
+                dev_dbg(fsl_chan->dev, "link descriptor %p will be recycle.\n",
+                                desc);
+                dma_pool_free(fsl_chan->desc_pool, desc, desc->async_tx.phys);
+
+                /* Run the link descriptor callback function */
+                if (callback) {
+                        spin_unlock_irqrestore(&fsl_chan->desc_lock, flags);
+                        dev_dbg(fsl_chan->dev, "link descriptor %p callback\n",
+                                        desc);
+                        callback(callback_param);
+                        spin_lock_irqsave(&fsl_chan->desc_lock, flags);
+                }
+        }
+        spin_unlock_irqrestore(&fsl_chan->desc_lock, flags);
+}
+
+/**
+ * fsl_chan_xfer_ld_queue - Transfer link descriptors in channel ld_queue.
+ * @fsl_chan : Freescale DMA channel
+ */
+static void fsl_chan_xfer_ld_queue(struct fsl_dma_chan *fsl_chan)
+{
+        struct list_head *ld_node;
+        dma_addr_t next_dest_addr;
+        unsigned long flags;
+
+        if (!dma_is_idle(fsl_chan))
+                return;
+
+        dma_halt(fsl_chan);
+
+        /* If there are some link descriptors
+         * not transfered in queue. We need to start it.
+         */
+        spin_lock_irqsave(&fsl_chan->desc_lock, flags);
+
+        /* Find the first un-transfer desciptor */
+        for (ld_node = fsl_chan->ld_queue.next;
+                (ld_node != &fsl_chan->ld_queue)
+                        && (dma_async_is_complete(
+                                to_fsl_desc(ld_node)->async_tx.cookie,
+                                fsl_chan->completed_cookie,
+                                fsl_chan->common.cookie) == DMA_SUCCESS);
+                ld_node = ld_node->next);
+
+        spin_unlock_irqrestore(&fsl_chan->desc_lock, flags);
+
+        if (ld_node != &fsl_chan->ld_queue) {
+                /* Get the ld start address from ld_queue */
+                next_dest_addr = to_fsl_desc(ld_node)->async_tx.phys;
+                dev_dbg(fsl_chan->dev, "xfer LDs staring from 0x%016llx\n",
+                                (u64)next_dest_addr);
+                set_cdar(fsl_chan, next_dest_addr);
+                dma_start(fsl_chan);
+        } else {
+                set_cdar(fsl_chan, 0);
+                set_ndar(fsl_chan, 0);
+        }
+}
+
+/**
+ * fsl_dma_memcpy_issue_pending - Issue the DMA start command
+ * @fsl_chan : Freescale DMA channel
+ */
+static void fsl_dma_memcpy_issue_pending(struct dma_chan *chan)
+{
+        struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan);
+
+#ifdef FSL_DMA_LD_DEBUG
+        struct fsl_desc_sw *ld;
+        unsigned long flags;
+
+        spin_lock_irqsave(&fsl_chan->desc_lock, flags);
+        if (list_empty(&fsl_chan->ld_queue)) {
+                spin_unlock_irqrestore(&fsl_chan->desc_lock, flags);
+                return;
+        }
+
+        dev_dbg(fsl_chan->dev, "--memcpy issue--\n");
+        list_for_each_entry(ld, &fsl_chan->ld_queue, node) {
+                int i;
+                dev_dbg(fsl_chan->dev, "Ch %d, LD %08x\n",
+                                fsl_chan->id, ld->async_tx.phys);
+                for (i = 0; i < 8; i++)
+                        dev_dbg(fsl_chan->dev, "LD offset %d: %08x\n",
+                                        i, *(((u32 *)&ld->hw) + i));
+        }
+        dev_dbg(fsl_chan->dev, "----------------\n");
+        spin_unlock_irqrestore(&fsl_chan->desc_lock, flags);
+#endif
+
+        fsl_chan_xfer_ld_queue(fsl_chan);
+}
+
+static void fsl_dma_dependency_added(struct dma_chan *chan)
+{
+        struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan);
+
+        fsl_chan_ld_cleanup(fsl_chan);
+}
+
+/**
+ * fsl_dma_is_complete - Determine the DMA status
+ * @fsl_chan : Freescale DMA channel
+ */
+static enum dma_status fsl_dma_is_complete(struct dma_chan *chan,
+                                        dma_cookie_t cookie,
+                                        dma_cookie_t *done,
+                                        dma_cookie_t *used)
+{
+        struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan);
+        dma_cookie_t last_used;
+        dma_cookie_t last_complete;
+
+        fsl_chan_ld_cleanup(fsl_chan);
+
+        last_used = chan->cookie;
+        last_complete = fsl_chan->completed_cookie;
+
+        if (done)
+                *done = last_complete;
+
+        if (used)
+                *used = last_used;
+
+        return dma_async_is_complete(cookie, last_complete, last_used);
+}
+
+static irqreturn_t fsl_dma_chan_do_interrupt(int irq, void *data)
+{
+        struct fsl_dma_chan *fsl_chan = (struct fsl_dma_chan *)data;
+        dma_addr_t stat;
+
+        stat = get_sr(fsl_chan);
+        dev_dbg(fsl_chan->dev, "event: channel %d, stat = 0x%x\n",
+                                                fsl_chan->id, stat);
+        set_sr(fsl_chan, stat);         /* Clear the event register */
+
+        stat &= ~(FSL_DMA_SR_CB | FSL_DMA_SR_CH);
+        if (!stat)
+                return IRQ_NONE;
+
+        if (stat & FSL_DMA_SR_TE)
+                dev_err(fsl_chan->dev, "Transfer Error!\n");
+
+        /* If the link descriptor segment transfer finishes,
+         * we will recycle the used descriptor.
+         */
+        if (stat & FSL_DMA_SR_EOSI) {
+                dev_dbg(fsl_chan->dev, "event: End-of-segments INT\n");
+                dev_dbg(fsl_chan->dev, "event: clndar 0x%016llx, "
+                                "nlndar 0x%016llx\n", (u64)get_cdar(fsl_chan),
+                                (u64)get_ndar(fsl_chan));
+                stat &= ~FSL_DMA_SR_EOSI;
+        }
+
+        /* If it current transfer is the end-of-transfer,
+         * we should clear the Channel Start bit for
+         * prepare next transfer.
+         */
+        if (stat & (FSL_DMA_SR_EOLNI | FSL_DMA_SR_EOCDI)) {
+                dev_dbg(fsl_chan->dev, "event: End-of-link INT\n");
+                stat &= ~FSL_DMA_SR_EOLNI;
+                fsl_chan_xfer_ld_queue(fsl_chan);
+        }
+
+        if (stat)
+                dev_dbg(fsl_chan->dev, "event: unhandled sr 0x%02x\n",
+                                        stat);
+
+        dev_dbg(fsl_chan->dev, "event: Exit\n");
+        tasklet_schedule(&fsl_chan->tasklet);
+        return IRQ_HANDLED;
+}
+
+static irqreturn_t fsl_dma_do_interrupt(int irq, void *data)
+{
+        struct fsl_dma_device *fdev = (struct fsl_dma_device *)data;
+        u32 gsr;
+        int ch_nr;
+
+        gsr = (fdev->feature & FSL_DMA_BIG_ENDIAN) ? in_be32(fdev->reg_base)
+                        : in_le32(fdev->reg_base);
+        ch_nr = (32 - ffs(gsr)) / 8;
+
+        return fdev->chan[ch_nr] ? fsl_dma_chan_do_interrupt(irq,
+                        fdev->chan[ch_nr]) : IRQ_NONE;
+}
+
+static void dma_do_tasklet(unsigned long data)
+{
+        struct fsl_dma_chan *fsl_chan = (struct fsl_dma_chan *)data;
+        fsl_chan_ld_cleanup(fsl_chan);
+}
+
+static void fsl_dma_callback_test(struct fsl_dma_chan *fsl_chan)
+{
+        if (fsl_chan)
+                dev_info(fsl_chan->dev, "selftest: callback is ok!\n");
+}
+
+static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan)
+{
+        struct dma_chan *chan;
+        int err = 0;
+        dma_addr_t dma_dest, dma_src;
+        dma_cookie_t cookie;
+        u8 *src, *dest;
+        int i;
+        size_t test_size;
+        struct dma_async_tx_descriptor *tx1, *tx2, *tx3;
+
+        test_size = 4096;
+
+        src = kmalloc(test_size * 2, GFP_KERNEL);
+        if (!src) {
+                dev_err(fsl_chan->dev,
+                                "selftest: Cannot alloc memory for test!\n");
+                err = -ENOMEM;
+                goto out;
+        }
+
+        dest = src + test_size;
+
+        for (i = 0; i < test_size; i++)
+                src[i] = (u8) i;
+
+        chan = &fsl_chan->common;
+
+        if (fsl_dma_alloc_chan_resources(chan) < 1) {
+                dev_err(fsl_chan->dev,
+                                "selftest: Cannot alloc resources for DMA\n");
+                err = -ENODEV;
+                goto out;
+        }
+
+        /* TX 1 */
+        dma_src = dma_map_single(fsl_chan->dev, src, test_size / 2,
+                                 DMA_TO_DEVICE);
+        dma_dest = dma_map_single(fsl_chan->dev, dest, test_size / 2,
+                                  DMA_FROM_DEVICE);
+        tx1 = fsl_dma_prep_memcpy(chan, dma_dest, dma_src, test_size / 2, 0);
+        async_tx_ack(tx1);
+
+        cookie = fsl_dma_tx_submit(tx1);
+        fsl_dma_memcpy_issue_pending(chan);
+        msleep(2);
+
+        if (fsl_dma_is_complete(chan, cookie, NULL, NULL) != DMA_SUCCESS) {
+                dev_err(fsl_chan->dev, "selftest: Time out!\n");
+                err = -ENODEV;
+                goto out;
+        }
+
+        /* Test free and re-alloc channel resources */
+        fsl_dma_free_chan_resources(chan);
+
+        if (fsl_dma_alloc_chan_resources(chan) < 1) {
+                dev_err(fsl_chan->dev,
+                                "selftest: Cannot alloc resources for DMA\n");
+                err = -ENODEV;
+                goto free_resources;
+        }
+
+        /* Continue to test
+         * TX 2
+         */
+        dma_src = dma_map_single(fsl_chan->dev, src + test_size / 2,
+                                        test_size / 4, DMA_TO_DEVICE);
+        dma_dest = dma_map_single(fsl_chan->dev, dest + test_size / 2,
+                                        test_size / 4, DMA_FROM_DEVICE);
+        tx2 = fsl_dma_prep_memcpy(chan, dma_dest, dma_src, test_size / 4, 0);
+        async_tx_ack(tx2);
+
+        /* TX 3 */
+        dma_src = dma_map_single(fsl_chan->dev, src + test_size * 3 / 4,
+                                        test_size / 4, DMA_TO_DEVICE);
+        dma_dest = dma_map_single(fsl_chan->dev, dest + test_size * 3 / 4,
+                                        test_size / 4, DMA_FROM_DEVICE);
+        tx3 = fsl_dma_prep_memcpy(chan, dma_dest, dma_src, test_size / 4, 0);
+        async_tx_ack(tx3);
+
+        /* Test exchanging the prepared tx sort */
+        cookie = fsl_dma_tx_submit(tx3);
+        cookie = fsl_dma_tx_submit(tx2);
+
+#ifdef FSL_DMA_CALLBACKTEST
+        if (dma_has_cap(DMA_INTERRUPT, ((struct fsl_dma_device *)
+            dev_get_drvdata(fsl_chan->dev->parent))->common.cap_mask)) {
+                tx3->callback = fsl_dma_callback_test;
+                tx3->callback_param = fsl_chan;
+        }
+#endif
+        fsl_dma_memcpy_issue_pending(chan);
+        msleep(2);
+
+        if (fsl_dma_is_complete(chan, cookie, NULL, NULL) != DMA_SUCCESS) {
+                dev_err(fsl_chan->dev, "selftest: Time out!\n");
+                err = -ENODEV;
+                goto free_resources;
+        }
+
+        err = memcmp(src, dest, test_size);
+        if (err) {
+                for (i = 0; (*(src + i) == *(dest + i)) && (i < test_size);
+                                i++);
+                dev_err(fsl_chan->dev, "selftest: Test failed, data %d/%d is "
+                                "error! src 0x%x, dest 0x%x\n",
+                                i, test_size, *(src + i), *(dest + i));
+        }
+
+free_resources:
+        fsl_dma_free_chan_resources(chan);
+out:
+        kfree(src);
+        return err;
+}
+
+static int __devinit of_fsl_dma_chan_probe(struct of_device *dev,
+                        const struct of_device_id *match)
+{
+        struct fsl_dma_device *fdev;
+        struct fsl_dma_chan *new_fsl_chan;
+        int err;
+
+        fdev = dev_get_drvdata(dev->dev.parent);
+        BUG_ON(!fdev);
+
+        /* alloc channel */
+        new_fsl_chan = kzalloc(sizeof(struct fsl_dma_chan), GFP_KERNEL);
+        if (!new_fsl_chan) {
+                dev_err(&dev->dev, "No free memory for allocating "
+                                "dma channels!\n");
+                err = -ENOMEM;
+                goto err;
+        }
+
+        /* get dma channel register base */
+        err = of_address_to_resource(dev->node, 0, &new_fsl_chan->reg);
+        if (err) {
+                dev_err(&dev->dev, "Can't get %s property 'reg'\n",
+                                dev->node->full_name);
+                goto err;
+        }
+
+        new_fsl_chan->feature = *(u32 *)match->data;
+
+        if (!fdev->feature)
+                fdev->feature = new_fsl_chan->feature;
+
+        /* If the DMA device's feature is different than its channels',
+         * report the bug.
+         */
+        WARN_ON(fdev->feature != new_fsl_chan->feature);
+
+        new_fsl_chan->dev = &dev->dev;
+        new_fsl_chan->reg_base = ioremap(new_fsl_chan->reg.start,
+                        new_fsl_chan->reg.end - new_fsl_chan->reg.start + 1);
+
+        new_fsl_chan->id = ((new_fsl_chan->reg.start - 0x100) & 0xfff) >> 7;
+        if (new_fsl_chan->id > FSL_DMA_MAX_CHANS_PER_DEVICE) {
+                dev_err(&dev->dev, "There is no %d channel!\n",
+                                new_fsl_chan->id);
+                err = -EINVAL;
+                goto err;
+        }
+        fdev->chan[new_fsl_chan->id] = new_fsl_chan;
+        tasklet_init(&new_fsl_chan->tasklet, dma_do_tasklet,
+                        (unsigned long)new_fsl_chan);
+
+        /* Init the channel */
+        dma_init(new_fsl_chan);
+
+        /* Clear cdar registers */
+        set_cdar(new_fsl_chan, 0);
+
+        switch (new_fsl_chan->feature & FSL_DMA_IP_MASK) {
+        case FSL_DMA_IP_85XX:
+                new_fsl_chan->toggle_ext_start = fsl_chan_toggle_ext_start;
+                new_fsl_chan->toggle_ext_pause = fsl_chan_toggle_ext_pause;
+        case FSL_DMA_IP_83XX:
+                new_fsl_chan->set_src_loop_size = fsl_chan_set_src_loop_size;
+                new_fsl_chan->set_dest_loop_size = fsl_chan_set_dest_loop_size;
+        }
+
+        spin_lock_init(&new_fsl_chan->desc_lock);
+        INIT_LIST_HEAD(&new_fsl_chan->ld_queue);
+
+        new_fsl_chan->common.device = &fdev->common;
+
+        /* Add the channel to DMA device channel list */
+        list_add_tail(&new_fsl_chan->common.device_node,
+                        &fdev->common.channels);
+        fdev->common.chancnt++;
+
+        new_fsl_chan->irq = irq_of_parse_and_map(dev->node, 0);
+        if (new_fsl_chan->irq != NO_IRQ) {
+                err = request_irq(new_fsl_chan->irq,
+                                        &fsl_dma_chan_do_interrupt, IRQF_SHARED,
+                                        "fsldma-channel", new_fsl_chan);
+                if (err) {
+                        dev_err(&dev->dev, "DMA channel %s request_irq error "
+                                "with return %d\n", dev->node->full_name, err);
+                        goto err;
+                }
+        }
+
+#ifdef CONFIG_FSL_DMA_SELFTEST
+        err = fsl_dma_self_test(new_fsl_chan);
+        if (err)
+                goto err;
+#endif
+
+        dev_info(&dev->dev, "#%d (%s), irq %d\n", new_fsl_chan->id,
+                                match->compatible, new_fsl_chan->irq);
+
+        return 0;
+err:
+        dma_halt(new_fsl_chan);
+        iounmap(new_fsl_chan->reg_base);
+        free_irq(new_fsl_chan->irq, new_fsl_chan);
+        list_del(&new_fsl_chan->common.device_node);
+        kfree(new_fsl_chan);
+        return err;
+}
+
+const u32 mpc8540_dma_ip_feature = FSL_DMA_IP_85XX | FSL_DMA_BIG_ENDIAN;
+const u32 mpc8349_dma_ip_feature = FSL_DMA_IP_83XX | FSL_DMA_LITTLE_ENDIAN;
+
+static struct of_device_id of_fsl_dma_chan_ids[] = {
+        {
+                .compatible = "fsl,mpc8540-dma-channel",
+                .data = (void *)&mpc8540_dma_ip_feature,
+        },
+        {
+                .compatible = "fsl,mpc8349-dma-channel",
+                .data = (void *)&mpc8349_dma_ip_feature,
+        },
+        {}
+};
+
+static struct of_platform_driver of_fsl_dma_chan_driver = {
+        .name = "of-fsl-dma-channel",
+        .match_table = of_fsl_dma_chan_ids,
+        .probe = of_fsl_dma_chan_probe,
+};
+
+static __init int of_fsl_dma_chan_init(void)
+{
+        return of_register_platform_driver(&of_fsl_dma_chan_driver);
+}
+
+static int __devinit of_fsl_dma_probe(struct of_device *dev,
+                        const struct of_device_id *match)
+{
+        int err;
+        unsigned int irq;
+        struct fsl_dma_device *fdev;
+
+        fdev = kzalloc(sizeof(struct fsl_dma_device), GFP_KERNEL);
+        if (!fdev) {
+                dev_err(&dev->dev, "No enough memory for 'priv'\n");
+                err = -ENOMEM;
+                goto err;
+        }
+        fdev->dev = &dev->dev;
+        INIT_LIST_HEAD(&fdev->common.channels);
+
+        /* get DMA controller register base */
+        err = of_address_to_resource(dev->node, 0, &fdev->reg);
+        if (err) {
+                dev_err(&dev->dev, "Can't get %s property 'reg'\n",
+                                dev->node->full_name);
+                goto err;
+        }
+
+        dev_info(&dev->dev, "Probe the Freescale DMA driver for %s "
+                        "controller at 0x%08x...\n",
+                        match->compatible, fdev->reg.start);
+        fdev->reg_base = ioremap(fdev->reg.start, fdev->reg.end
+                                                - fdev->reg.start + 1);
+
+        dma_cap_set(DMA_MEMCPY, fdev->common.cap_mask);
+        dma_cap_set(DMA_INTERRUPT, fdev->common.cap_mask);
+        fdev->common.device_alloc_chan_resources = fsl_dma_alloc_chan_resources;
+        fdev->common.device_free_chan_resources = fsl_dma_free_chan_resources;
+        fdev->common.device_prep_dma_memcpy = fsl_dma_prep_memcpy;
+        fdev->common.device_is_tx_complete = fsl_dma_is_complete;
+        fdev->common.device_issue_pending = fsl_dma_memcpy_issue_pending;
+        fdev->common.device_dependency_added = fsl_dma_dependency_added;
+        fdev->common.dev = &dev->dev;
+
+        irq = irq_of_parse_and_map(dev->node, 0);
+        if (irq != NO_IRQ) {
+                err = request_irq(irq, &fsl_dma_do_interrupt, IRQF_SHARED,
+                                        "fsldma-device", fdev);
+                if (err) {
+                        dev_err(&dev->dev, "DMA device request_irq error "
+                                "with return %d\n", err);
+                        goto err;
+                }
+        }
+
+        dev_set_drvdata(&(dev->dev), fdev);
+        of_platform_bus_probe(dev->node, of_fsl_dma_chan_ids, &dev->dev);
+
+        dma_async_device_register(&fdev->common);
+        return 0;
+
+err:
+        iounmap(fdev->reg_base);
+        kfree(fdev);
+        return err;
+}
+
+static struct of_device_id of_fsl_dma_ids[] = {
+        { .compatible = "fsl,mpc8540-dma", },
+        { .compatible = "fsl,mpc8349-dma", },
+        {}
+};
+
+static struct of_platform_driver of_fsl_dma_driver = {
+        .name = "of-fsl-dma",
+        .match_table = of_fsl_dma_ids,
+        .probe = of_fsl_dma_probe,
+};
+
+static __init int of_fsl_dma_init(void)
+{
+        return of_register_platform_driver(&of_fsl_dma_driver);
+}
+
+subsys_initcall(of_fsl_dma_chan_init);
+subsys_initcall(of_fsl_dma_init);
diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h
new file mode 100644
index 000000000000..ba78c42121ba
--- /dev/null
+++ b/drivers/dma/fsldma.h
@@ -0,0 +1,189 @@
+/*
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author:
+ *   Zhang Wei <wei.zhang@freescale.com>, Jul 2007
+ *   Ebony Zhu <ebony.zhu@freescale.com>, May 2007
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+#ifndef __DMA_FSLDMA_H
+#define __DMA_FSLDMA_H
+
+#include <linux/device.h>
+#include <linux/dmapool.h>
+#include <linux/dmaengine.h>
+
+/* Define data structures needed by Freescale
+ * MPC8540 and MPC8349 DMA controller.
+ */
+#define FSL_DMA_MR_CS           0x00000001
+#define FSL_DMA_MR_CC           0x00000002
+#define FSL_DMA_MR_CA           0x00000008
+#define FSL_DMA_MR_EIE          0x00000040
+#define FSL_DMA_MR_XFE          0x00000020
+#define FSL_DMA_MR_EOLNIE       0x00000100
+#define FSL_DMA_MR_EOLSIE       0x00000080
+#define FSL_DMA_MR_EOSIE        0x00000200
+#define FSL_DMA_MR_CDSM         0x00000010
+#define FSL_DMA_MR_CTM          0x00000004
+#define FSL_DMA_MR_EMP_EN       0x00200000
+#define FSL_DMA_MR_EMS_EN       0x00040000
+#define FSL_DMA_MR_DAHE         0x00002000
+#define FSL_DMA_MR_SAHE         0x00001000
+
+/* Special MR definition for MPC8349 */
+#define FSL_DMA_MR_EOTIE        0x00000080
+
+#define FSL_DMA_SR_CH           0x00000020
+#define FSL_DMA_SR_CB           0x00000004
+#define FSL_DMA_SR_TE           0x00000080
+#define FSL_DMA_SR_EOSI         0x00000002
+#define FSL_DMA_SR_EOLSI        0x00000001
+#define FSL_DMA_SR_EOCDI        0x00000001
+#define FSL_DMA_SR_EOLNI        0x00000008
+
+#define FSL_DMA_SATR_SBPATMU                    0x20000000
+#define FSL_DMA_SATR_STRANSINT_RIO              0x00c00000
+#define FSL_DMA_SATR_SREADTYPE_SNOOP_READ       0x00050000
+#define FSL_DMA_SATR_SREADTYPE_BP_IORH          0x00020000
+#define FSL_DMA_SATR_SREADTYPE_BP_NREAD         0x00040000
+#define FSL_DMA_SATR_SREADTYPE_BP_MREAD         0x00070000
+
+#define FSL_DMA_DATR_DBPATMU                    0x20000000
+#define FSL_DMA_DATR_DTRANSINT_RIO              0x00c00000
+#define FSL_DMA_DATR_DWRITETYPE_SNOOP_WRITE     0x00050000
+#define FSL_DMA_DATR_DWRITETYPE_BP_FLUSH        0x00010000
+
+#define FSL_DMA_EOL             ((u64)0x1)
+#define FSL_DMA_SNEN            ((u64)0x10)
+#define FSL_DMA_EOSIE           0x8
+#define FSL_DMA_NLDA_MASK       (~(u64)0x1f)
+
+#define FSL_DMA_BCR_MAX_CNT     0x03ffffffu
+
+#define FSL_DMA_DGSR_TE         0x80
+#define FSL_DMA_DGSR_CH         0x20
+#define FSL_DMA_DGSR_PE         0x10
+#define FSL_DMA_DGSR_EOLNI      0x08
+#define FSL_DMA_DGSR_CB         0x04
+#define FSL_DMA_DGSR_EOSI       0x02
+#define FSL_DMA_DGSR_EOLSI      0x01
+
+struct fsl_dma_ld_hw {
+        u64 __bitwise   src_addr;
+        u64 __bitwise   dst_addr;
+        u64 __bitwise   next_ln_addr;
+        u32 __bitwise   count;
+        u32 __bitwise   reserve;
+} __attribute__((aligned(32)));
+
+struct fsl_desc_sw {
+        struct fsl_dma_ld_hw hw;
+        struct list_head node;
+        struct dma_async_tx_descriptor async_tx;
+        struct list_head *ld;
+        void *priv;
+} __attribute__((aligned(32)));
+
+struct fsl_dma_chan_regs {
+        u32 __bitwise   mr;     /* 0x00 - Mode Register */
+        u32 __bitwise   sr;     /* 0x04 - Status Register */
+        u64 __bitwise   cdar;   /* 0x08 - Current descriptor address register */
+        u64 __bitwise   sar;    /* 0x10 - Source Address Register */
+        u64 __bitwise   dar;    /* 0x18 - Destination Address Register */
+        u32 __bitwise   bcr;    /* 0x20 - Byte Count Register */
+        u64 __bitwise   ndar;   /* 0x24 - Next Descriptor Address Register */
+};
+
+struct fsl_dma_chan;
+#define FSL_DMA_MAX_CHANS_PER_DEVICE 4
+
+struct fsl_dma_device {
+        void __iomem *reg_base; /* DGSR register base */
+        struct resource reg;    /* Resource for register */
+        struct device *dev;
+        struct dma_device common;
+        struct fsl_dma_chan *chan[FSL_DMA_MAX_CHANS_PER_DEVICE];
+        u32 feature;            /* The same as DMA channels */
+};
+
+/* Define macros for fsl_dma_chan->feature property */
+#define FSL_DMA_LITTLE_ENDIAN   0x00000000
+#define FSL_DMA_BIG_ENDIAN      0x00000001
+
+#define FSL_DMA_IP_MASK         0x00000ff0
+#define FSL_DMA_IP_85XX         0x00000010
+#define FSL_DMA_IP_83XX         0x00000020
+
+#define FSL_DMA_CHAN_PAUSE_EXT  0x00001000
+#define FSL_DMA_CHAN_START_EXT  0x00002000
+
+struct fsl_dma_chan {
+        struct fsl_dma_chan_regs __iomem *reg_base;
+        dma_cookie_t completed_cookie;  /* The maximum cookie completed */
+        spinlock_t desc_lock;           /* Descriptor operation lock */
+        struct list_head ld_queue;      /* Link descriptors queue */
+        struct dma_chan common;         /* DMA common channel */
+        struct dma_pool *desc_pool;     /* Descriptors pool */
+        struct device *dev;             /* Channel device */
+        struct resource reg;            /* Resource for register */
+        int irq;                        /* Channel IRQ */
+        int id;                         /* Raw id of this channel */
+        struct tasklet_struct tasklet;
+        u32 feature;
+
+        void (*toggle_ext_pause)(struct fsl_dma_chan *fsl_chan, int size);
+        void (*toggle_ext_start)(struct fsl_dma_chan *fsl_chan, int enable);
+        void (*set_src_loop_size)(struct fsl_dma_chan *fsl_chan, int size);
+        void (*set_dest_loop_size)(struct fsl_dma_chan *fsl_chan, int size);
+};
+
+#define to_fsl_chan(chan) container_of(chan, struct fsl_dma_chan, common)
+#define to_fsl_desc(lh) container_of(lh, struct fsl_desc_sw, node)
+#define tx_to_fsl_desc(tx) container_of(tx, struct fsl_desc_sw, async_tx)
+
+#ifndef __powerpc64__
+static u64 in_be64(const u64 __iomem *addr)
+{
+        return ((u64)in_be32((u32 *)addr) << 32) | (in_be32((u32 *)addr + 1));
+}
+
+static void out_be64(u64 __iomem *addr, u64 val)
+{
+        out_be32((u32 *)addr, val >> 32);
+        out_be32((u32 *)addr + 1, (u32)val);
+}
+
+/* There is no asm instructions for 64 bits reverse loads and stores */
+static u64 in_le64(const u64 __iomem *addr)
+{
+        return ((u64)in_le32((u32 *)addr + 1) << 32) | (in_le32((u32 *)addr));
+}
+
+static void out_le64(u64 __iomem *addr, u64 val)
+{
+        out_le32((u32 *)addr + 1, val >> 32);
+        out_le32((u32 *)addr, (u32)val);
+}
+#endif
+
+#define DMA_IN(fsl_chan, addr, width)                                   \
+                (((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ?           \
+                        in_be##width(addr) : in_le##width(addr))
+#define DMA_OUT(fsl_chan, addr, val, width)                             \
+                (((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ?           \
+                        out_be##width(addr, val) : out_le##width(addr, val))
+
+#define DMA_TO_CPU(fsl_chan, d, width)                                  \
+                (((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ?           \
+                        be##width##_to_cpu(d) : le##width##_to_cpu(d))
+#define CPU_TO_DMA(fsl_chan, c, width)                                  \
+                (((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ?           \
+                        cpu_to_be##width(c) : cpu_to_le##width(c))
+
+#endif  /* __DMA_FSLDMA_H */
diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c
index dff38accc5c1..4017d9e7acd2 100644
--- a/drivers/dma/ioat_dma.c
+++ b/drivers/dma/ioat_dma.c
@@ -714,6 +714,7 @@ static struct dma_async_tx_descriptor *ioat1_dma_prep_memcpy(
                 new->len = len;
                 new->dst = dma_dest;
                 new->src = dma_src;
+                new->async_tx.ack = 0;
                 return &new->async_tx;
         } else
                 return NULL;
@@ -741,6 +742,7 @@ static struct dma_async_tx_descriptor *ioat2_dma_prep_memcpy(
                 new->len = len;
                 new->dst = dma_dest;
                 new->src = dma_src;
+                new->async_tx.ack = 0;
                 return &new->async_tx;
         } else
                 return NULL;
diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c
index 3e9719948a8e..a03462750b95 100644
--- a/drivers/firewire/fw-card.c
+++ b/drivers/firewire/fw-card.c
@@ -18,6 +18,7 @@
 
 #include <linux/module.h>
 #include <linux/errno.h>
+#include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/mutex.h>
 #include <linux/crc-itu-t.h>
@@ -214,17 +215,29 @@ static void
 fw_card_bm_work(struct work_struct *work)
 {
         struct fw_card *card = container_of(work, struct fw_card, work.work);
-        struct fw_device *root;
+        struct fw_device *root_device;
+        struct fw_node *root_node, *local_node;
         struct bm_data bmd;
         unsigned long flags;
         int root_id, new_root_id, irm_id, gap_count, generation, grace;
         int do_reset = 0;
 
         spin_lock_irqsave(&card->lock, flags);
+        local_node = card->local_node;
+        root_node  = card->root_node;
+
+        if (local_node == NULL) {
+                spin_unlock_irqrestore(&card->lock, flags);
+                return;
+        }
+        fw_node_get(local_node);
+        fw_node_get(root_node);
 
         generation = card->generation;
-        root = card->root_node->data;
-        root_id = card->root_node->node_id;
+        root_device = root_node->data;
+        if (root_device)
+                fw_device_get(root_device);
+        root_id = root_node->node_id;
         grace = time_after(jiffies, card->reset_jiffies + DIV_ROUND_UP(HZ, 10));
 
         if (card->bm_generation + 1 == generation ||
@@ -243,14 +256,14 @@ fw_card_bm_work(struct work_struct *work)
 
                 irm_id = card->irm_node->node_id;
                 if (!card->irm_node->link_on) {
-                        new_root_id = card->local_node->node_id;
+                        new_root_id = local_node->node_id;
                         fw_notify("IRM has link off, making local node (%02x) root.\n",
                                   new_root_id);
                         goto pick_me;
                 }
 
                 bmd.lock.arg = cpu_to_be32(0x3f);
-                bmd.lock.data = cpu_to_be32(card->local_node->node_id);
+                bmd.lock.data = cpu_to_be32(local_node->node_id);
 
                 spin_unlock_irqrestore(&card->lock, flags);
 
@@ -267,12 +280,12 @@ fw_card_bm_work(struct work_struct *work)
                          * Another bus reset happened. Just return,
                          * the BM work has been rescheduled.
                          */
-                        return;
+                        goto out;
                 }
 
                 if (bmd.rcode == RCODE_COMPLETE && bmd.old != 0x3f)
                         /* Somebody else is BM, let them do the work. */
-                        return;
+                        goto out;
 
                 spin_lock_irqsave(&card->lock, flags);
                 if (bmd.rcode != RCODE_COMPLETE) {
@@ -282,7 +295,7 @@ fw_card_bm_work(struct work_struct *work)
                          * do a bus reset and pick the local node as
                          * root, and thus, IRM.
                          */
-                        new_root_id = card->local_node->node_id;
+                        new_root_id = local_node->node_id;
                         fw_notify("BM lock failed, making local node (%02x) root.\n",
                                   new_root_id);
                         goto pick_me;
@@ -295,7 +308,7 @@ fw_card_bm_work(struct work_struct *work)
                  */
                 spin_unlock_irqrestore(&card->lock, flags);
                 schedule_delayed_work(&card->work, DIV_ROUND_UP(HZ, 10));
-                return;
+                goto out;
         }
 
         /*
@@ -305,20 +318,20 @@ fw_card_bm_work(struct work_struct *work)
          */
         card->bm_generation = generation;
 
-        if (root == NULL) {
+        if (root_device == NULL) {
                 /*
                  * Either link_on is false, or we failed to read the
                  * config rom.  In either case, pick another root.
                  */
-                new_root_id = card->local_node->node_id;
-        } else if (atomic_read(&root->state) != FW_DEVICE_RUNNING) {
+                new_root_id = local_node->node_id;
+        } else if (atomic_read(&root_device->state) != FW_DEVICE_RUNNING) {
                 /*
                  * If we haven't probed this device yet, bail out now
                  * and let's try again once that's done.
                  */
                 spin_unlock_irqrestore(&card->lock, flags);
-                return;
-        } else if (root->config_rom[2] & BIB_CMC) {
+                goto out;
+        } else if (root_device->config_rom[2] & BIB_CMC) {
                 /*
                  * FIXME: I suppose we should set the cmstr bit in the
                  * STATE_CLEAR register of this node, as described in
@@ -332,7 +345,7 @@ fw_card_bm_work(struct work_struct *work)
                  * successfully read the config rom, but it's not
                  * cycle master capable.
                  */
-                new_root_id = card->local_node->node_id;
+                new_root_id = local_node->node_id;
         }
 
  pick_me:
@@ -341,8 +354,8 @@ fw_card_bm_work(struct work_struct *work)
          * the typically much larger 1394b beta repeater delays though.
          */
         if (!card->beta_repeaters_present &&
-            card->root_node->max_hops < ARRAY_SIZE(gap_count_table))
-                gap_count = gap_count_table[card->root_node->max_hops];
+            root_node->max_hops < ARRAY_SIZE(gap_count_table))
+                gap_count = gap_count_table[root_node->max_hops];
         else
                 gap_count = 63;
 
@@ -364,6 +377,11 @@ fw_card_bm_work(struct work_struct *work)
                 fw_send_phy_config(card, new_root_id, generation, gap_count);
                 fw_core_initiate_bus_reset(card, 1);
         }
+ out:
+        if (root_device)
+                fw_device_put(root_device);
+        fw_node_put(root_node);
+        fw_node_put(local_node);
 }
 
 static void
@@ -381,6 +399,7 @@ fw_card_initialize(struct fw_card *card, const struct fw_card_driver *driver,
         static atomic_t index = ATOMIC_INIT(-1);
 
         kref_init(&card->kref);
+        atomic_set(&card->device_count, 0);
         card->index = atomic_inc_return(&index);
         card->driver = driver;
         card->device = device;
@@ -511,8 +530,14 @@ fw_core_remove_card(struct fw_card *card)
         card->driver = &dummy_driver;
 
         fw_destroy_nodes(card);
-        flush_scheduled_work();
+        /*
+         * Wait for all device workqueue jobs to finish.  Otherwise the
+         * firewire-core module could be unloaded before the jobs ran.
+         */
+        while (atomic_read(&card->device_count) > 0)
+                msleep(100);
 
+        cancel_delayed_work_sync(&card->work);
         fw_flush_transactions(card);
         del_timer_sync(&card->flush_timer);
 
diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
index 7e73cbaa4121..46bc197a047f 100644
--- a/drivers/firewire/fw-cdev.c
+++ b/drivers/firewire/fw-cdev.c
@@ -109,15 +109,17 @@ static int fw_device_op_open(struct inode *inode, struct file *file)
         struct client *client;
         unsigned long flags;
 
-        device = fw_device_from_devt(inode->i_rdev);
+        device = fw_device_get_by_devt(inode->i_rdev);
         if (device == NULL)
                 return -ENODEV;
 
         client = kzalloc(sizeof(*client), GFP_KERNEL);
-        if (client == NULL)
+        if (client == NULL) {
+                fw_device_put(device);
                 return -ENOMEM;
+        }
 
-        client->device = fw_device_get(device);
+        client->device = device;
         INIT_LIST_HEAD(&client->event_list);
         INIT_LIST_HEAD(&client->resource_list);
         spin_lock_init(&client->lock);
@@ -644,6 +646,10 @@ static int ioctl_create_iso_context(struct client *client, void *buffer)
         struct fw_cdev_create_iso_context *request = buffer;
         struct fw_iso_context *context;
 
+        /* We only support one context at this time. */
+        if (client->iso_context != NULL)
+                return -EBUSY;
+
         if (request->channel > 63)
                 return -EINVAL;
 
@@ -790,8 +796,9 @@ static int ioctl_start_iso(struct client *client, void *buffer)
 {
         struct fw_cdev_start_iso *request = buffer;
 
-        if (request->handle != 0)
+        if (client->iso_context == NULL || request->handle != 0)
                 return -EINVAL;
+
         if (client->iso_context->type == FW_ISO_CONTEXT_RECEIVE) {
                 if (request->tags == 0 || request->tags > 15)
                         return -EINVAL;
@@ -808,7 +815,7 @@ static int ioctl_stop_iso(struct client *client, void *buffer)
 {
         struct fw_cdev_stop_iso *request = buffer;
 
-        if (request->handle != 0)
+        if (client->iso_context == NULL || request->handle != 0)
                 return -EINVAL;
 
         return fw_iso_context_stop(client->iso_context);
diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c
index de9066e69adf..870125a3638e 100644
--- a/drivers/firewire/fw-device.c
+++ b/drivers/firewire/fw-device.c
@@ -150,21 +150,10 @@ struct bus_type fw_bus_type = {
 };
 EXPORT_SYMBOL(fw_bus_type);
 
-struct fw_device *fw_device_get(struct fw_device *device)
-{
-        get_device(&device->device);
-
-        return device;
-}
-
-void fw_device_put(struct fw_device *device)
-{
-        put_device(&device->device);
-}
-
 static void fw_device_release(struct device *dev)
 {
         struct fw_device *device = fw_device(dev);
+        struct fw_card *card = device->card;
         unsigned long flags;
 
         /*
@@ -176,9 +165,9 @@ static void fw_device_release(struct device *dev)
         spin_unlock_irqrestore(&device->card->lock, flags);
 
         fw_node_put(device->node);
-        fw_card_put(device->card);
         kfree(device->config_rom);
         kfree(device);
+        atomic_dec(&card->device_count);
 }
 
 int fw_device_enable_phys_dma(struct fw_device *device)
@@ -358,12 +347,9 @@ static ssize_t
 guid_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
         struct fw_device *device = fw_device(dev);
-        u64 guid;
-
-        guid = ((u64)device->config_rom[3] << 32) | device->config_rom[4];
 
-        return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
-                        (unsigned long long)guid);
+        return snprintf(buf, PAGE_SIZE, "0x%08x%08x\n",
+                        device->config_rom[3], device->config_rom[4]);
 }
 
 static struct device_attribute fw_device_attributes[] = {
@@ -610,12 +596,14 @@ static DECLARE_RWSEM(idr_rwsem);
 static DEFINE_IDR(fw_device_idr);
 int fw_cdev_major;
 
-struct fw_device *fw_device_from_devt(dev_t devt)
+struct fw_device *fw_device_get_by_devt(dev_t devt)
 {
         struct fw_device *device;
 
         down_read(&idr_rwsem);
         device = idr_find(&fw_device_idr, MINOR(devt));
+        if (device)
+                fw_device_get(device);
         up_read(&idr_rwsem);
 
         return device;
@@ -627,13 +615,14 @@ static void fw_device_shutdown(struct work_struct *work)
                 container_of(work, struct fw_device, work.work);
         int minor = MINOR(device->device.devt);
 
-        down_write(&idr_rwsem);
-        idr_remove(&fw_device_idr, minor);
-        up_write(&idr_rwsem);
-
         fw_device_cdev_remove(device);
         device_for_each_child(&device->device, NULL, shutdown_unit);
         device_unregister(&device->device);
+
+        down_write(&idr_rwsem);
+        idr_remove(&fw_device_idr, minor);
+        up_write(&idr_rwsem);
+        fw_device_put(device);
 }
 
 static struct device_type fw_device_type = {
@@ -668,7 +657,8 @@ static void fw_device_init(struct work_struct *work)
          */
 
         if (read_bus_info_block(device, device->generation) < 0) {
-                if (device->config_rom_retries < MAX_RETRIES) {
+                if (device->config_rom_retries < MAX_RETRIES &&
+                    atomic_read(&device->state) == FW_DEVICE_INITIALIZING) {
                         device->config_rom_retries++;
                         schedule_delayed_work(&device->work, RETRY_DELAY);
                 } else {
@@ -682,10 +672,13 @@ static void fw_device_init(struct work_struct *work)
         }
 
         err = -ENOMEM;
+
+        fw_device_get(device);
         down_write(&idr_rwsem);
         if (idr_pre_get(&fw_device_idr, GFP_KERNEL))
                 err = idr_get_new(&fw_device_idr, device, &minor);
         up_write(&idr_rwsem);
+
         if (err < 0)
                 goto error;
 
@@ -717,13 +710,22 @@ static void fw_device_init(struct work_struct *work)
          */
         if (atomic_cmpxchg(&device->state,
                     FW_DEVICE_INITIALIZING,
-                    FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN)
+                    FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN) {
                 fw_device_shutdown(&device->work.work);
-        else
-                fw_notify("created new fw device %s "
-                          "(%d config rom retries, S%d00)\n",
-                          device->device.bus_id, device->config_rom_retries,
-                          1 << device->max_speed);
+        } else {
+                if (device->config_rom_retries)
+                        fw_notify("created device %s: GUID %08x%08x, S%d00, "
+                                  "%d config ROM retries\n",
+                                  device->device.bus_id,
+                                  device->config_rom[3], device->config_rom[4],
+                                  1 << device->max_speed,
+                                  device->config_rom_retries);
+                else
+                        fw_notify("created device %s: GUID %08x%08x, S%d00\n",
+                                  device->device.bus_id,
+                                  device->config_rom[3], device->config_rom[4],
+                                  1 << device->max_speed);
+        }
 
         /*
          * Reschedule the IRM work if we just finished reading the
@@ -741,7 +743,9 @@ static void fw_device_init(struct work_struct *work)
         idr_remove(&fw_device_idr, minor);
         up_write(&idr_rwsem);
  error:
-        put_device(&device->device);
+        fw_device_put(device);          /* fw_device_idr's reference */
+
+        put_device(&device->device);    /* our reference */
 }
 
 static int update_unit(struct device *dev, void *data)
@@ -791,7 +795,8 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event)
                  */
                 device_initialize(&device->device);
                 atomic_set(&device->state, FW_DEVICE_INITIALIZING);
-                device->card = fw_card_get(card);
+                atomic_inc(&card->device_count);
+                device->card = card;
                 device->node = fw_node_get(node);
                 device->node_id = node->node_id;
                 device->generation = card->generation;
diff --git a/drivers/firewire/fw-device.h b/drivers/firewire/fw-device.h
index 0854fe2bc110..78ecd3991b7f 100644
--- a/drivers/firewire/fw-device.h
+++ b/drivers/firewire/fw-device.h
@@ -76,14 +76,26 @@ fw_device_is_shutdown(struct fw_device *device)
         return atomic_read(&device->state) == FW_DEVICE_SHUTDOWN;
 }
 
-struct fw_device *fw_device_get(struct fw_device *device);
-void fw_device_put(struct fw_device *device);
+static inline struct fw_device *
+fw_device_get(struct fw_device *device)
+{
+        get_device(&device->device);
+
+        return device;
+}
+
+static inline void
+fw_device_put(struct fw_device *device)
+{
+        put_device(&device->device);
+}
+
+struct fw_device *fw_device_get_by_devt(dev_t devt);
 int fw_device_enable_phys_dma(struct fw_device *device);
 
 void fw_device_cdev_update(struct fw_device *device);
 void fw_device_cdev_remove(struct fw_device *device);
 
-struct fw_device *fw_device_from_devt(dev_t devt);
 extern int fw_cdev_major;
 
 struct fw_unit {
diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c
index 19ece9b6d742..03069a454c07 100644
--- a/drivers/firewire/fw-sbp2.c
+++ b/drivers/firewire/fw-sbp2.c
@@ -28,14 +28,15 @@
  * and many others.
  */
 
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
 #include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
-#include <linux/mod_devicetable.h>
-#include <linux/device.h>
 #include <linux/scatterlist.h>
-#include <linux/dma-mapping.h>
-#include <linux/blkdev.h>
 #include <linux/string.h>
 #include <linux/stringify.h>
 #include <linux/timer.h>
@@ -47,9 +48,9 @@
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
 
-#include "fw-transaction.h"
-#include "fw-topology.h"
 #include "fw-device.h"
+#include "fw-topology.h"
+#include "fw-transaction.h"
 
 /*
  * So far only bridges from Oxford Semiconductor are known to support
@@ -82,6 +83,9 @@ MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device "
  *   Avoids access beyond actual disk limits on devices with an off-by-one bug.
  *   Don't use this with devices which don't have this bug.
  *
+ * - delay inquiry
+ *   Wait extra SBP2_INQUIRY_DELAY seconds after login before SCSI inquiry.
+ *
  * - override internal blacklist
  *   Instead of adding to the built-in blacklist, use only the workarounds
  *   specified in the module load parameter.
@@ -91,6 +95,8 @@ MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device "
 #define SBP2_WORKAROUND_INQUIRY_36      0x2
 #define SBP2_WORKAROUND_MODE_SENSE_8    0x4
 #define SBP2_WORKAROUND_FIX_CAPACITY    0x8
+#define SBP2_WORKAROUND_DELAY_INQUIRY   0x10
+#define SBP2_INQUIRY_DELAY              12
 #define SBP2_WORKAROUND_OVERRIDE        0x100
 
 static int sbp2_param_workarounds;
@@ -100,6 +106,7 @@ MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0"
         ", 36 byte inquiry = "    __stringify(SBP2_WORKAROUND_INQUIRY_36)
         ", skip mode page 8 = "   __stringify(SBP2_WORKAROUND_MODE_SENSE_8)
         ", fix capacity = "       __stringify(SBP2_WORKAROUND_FIX_CAPACITY)
+        ", delay inquiry = "      __stringify(SBP2_WORKAROUND_DELAY_INQUIRY)
         ", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
         ", or a combination)");
 
@@ -115,7 +122,6 @@ static const char sbp2_driver_name[] = "sbp2";
 struct sbp2_logical_unit {
         struct sbp2_target *tgt;
         struct list_head link;
-        struct scsi_device *sdev;
         struct fw_address_handler address_handler;
         struct list_head orb_list;
 
@@ -132,6 +138,8 @@ struct sbp2_logical_unit {
         int generation;
         int retries;
         struct delayed_work work;
+        bool has_sdev;
+        bool blocked;
 };
 
 /*
@@ -141,16 +149,18 @@ struct sbp2_logical_unit {
 struct sbp2_target {
         struct kref kref;
         struct fw_unit *unit;
+        const char *bus_id;
+        struct list_head lu_list;
 
         u64 management_agent_address;
         int directory_id;
         int node_id;
         int address_high;
-
-        unsigned workarounds;
-        struct list_head lu_list;
-
+        unsigned int workarounds;
         unsigned int mgt_orb_timeout;
+
+        int dont_block; /* counter for each logical unit */
+        int blocked;    /* ditto */
 };
 
 /*
@@ -160,7 +170,7 @@ struct sbp2_target {
  */
 #define SBP2_MIN_LOGIN_ORB_TIMEOUT      5000U   /* Timeout in ms */
 #define SBP2_MAX_LOGIN_ORB_TIMEOUT      40000U  /* Timeout in ms */
-#define SBP2_ORB_TIMEOUT                2000    /* Timeout in ms */
+#define SBP2_ORB_TIMEOUT                2000U   /* Timeout in ms */
 #define SBP2_ORB_NULL                   0x80000000
 #define SBP2_MAX_SG_ELEMENT_LENGTH      0xf000
 
@@ -297,7 +307,7 @@ struct sbp2_command_orb {
 static const struct {
         u32 firmware_revision;
         u32 model;
-        unsigned workarounds;
+        unsigned int workarounds;
 } sbp2_workarounds_table[] = {
         /* DViCO Momobay CX-1 with TSB42AA9 bridge */ {
                 .firmware_revision      = 0x002800,
@@ -305,6 +315,11 @@ static const struct {
                 .workarounds            = SBP2_WORKAROUND_INQUIRY_36 |
                                           SBP2_WORKAROUND_MODE_SENSE_8,
         },
+        /* DViCO Momobay FX-3A with TSB42AA9A bridge */ {
+                .firmware_revision      = 0x002800,
+                .model                  = 0x000000,
+                .workarounds            = SBP2_WORKAROUND_DELAY_INQUIRY,
+        },
         /* Initio bridges, actually only needed for some older ones */ {
                 .firmware_revision      = 0x000200,
                 .model                  = ~0,
@@ -501,6 +516,9 @@ sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
         unsigned int timeout;
         int retval = -ENOMEM;
 
+        if (function == SBP2_LOGOUT_REQUEST && fw_device_is_shutdown(device))
+                return 0;
+
         orb = kzalloc(sizeof(*orb), GFP_ATOMIC);
         if (orb == NULL)
                 return -ENOMEM;
@@ -553,20 +571,20 @@ sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
 
         retval = -EIO;
         if (sbp2_cancel_orbs(lu) == 0) {
-                fw_error("orb reply timed out, rcode=0x%02x\n",
-                         orb->base.rcode);
+                fw_error("%s: orb reply timed out, rcode=0x%02x\n",
+                         lu->tgt->bus_id, orb->base.rcode);
                 goto out;
         }
 
         if (orb->base.rcode != RCODE_COMPLETE) {
-                fw_error("management write failed, rcode 0x%02x\n",
-                         orb->base.rcode);
+                fw_error("%s: management write failed, rcode 0x%02x\n",
+                         lu->tgt->bus_id, orb->base.rcode);
                 goto out;
         }
 
         if (STATUS_GET_RESPONSE(orb->status) != 0 ||
             STATUS_GET_SBP_STATUS(orb->status) != 0) {
-                fw_error("error status: %d:%d\n",
+                fw_error("%s: error status: %d:%d\n", lu->tgt->bus_id,
                          STATUS_GET_RESPONSE(orb->status),
                          STATUS_GET_SBP_STATUS(orb->status));
                 goto out;
@@ -590,29 +608,158 @@ sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
 
 static void
 complete_agent_reset_write(struct fw_card *card, int rcode,
-                           void *payload, size_t length, void *data)
+                           void *payload, size_t length, void *done)
 {
-        struct fw_transaction *t = data;
+        complete(done);
+}
 
-        kfree(t);
+static void sbp2_agent_reset(struct sbp2_logical_unit *lu)
+{
+        struct fw_device *device = fw_device(lu->tgt->unit->device.parent);
+        DECLARE_COMPLETION_ONSTACK(done);
+        struct fw_transaction t;
+        static u32 z;
+
+        fw_send_request(device->card, &t, TCODE_WRITE_QUADLET_REQUEST,
+                        lu->tgt->node_id, lu->generation, device->max_speed,
+                        lu->command_block_agent_address + SBP2_AGENT_RESET,
+                        &z, sizeof(z), complete_agent_reset_write, &done);
+        wait_for_completion(&done);
+}
+
+static void
+complete_agent_reset_write_no_wait(struct fw_card *card, int rcode,
+                                   void *payload, size_t length, void *data)
+{
+        kfree(data);
 }
 
-static int sbp2_agent_reset(struct sbp2_logical_unit *lu)
+static void sbp2_agent_reset_no_wait(struct sbp2_logical_unit *lu)
 {
         struct fw_device *device = fw_device(lu->tgt->unit->device.parent);
         struct fw_transaction *t;
-        static u32 zero;
+        static u32 z;
 
-        t = kzalloc(sizeof(*t), GFP_ATOMIC);
+        t = kmalloc(sizeof(*t), GFP_ATOMIC);
         if (t == NULL)
-                return -ENOMEM;
+                return;
 
         fw_send_request(device->card, t, TCODE_WRITE_QUADLET_REQUEST,
                         lu->tgt->node_id, lu->generation, device->max_speed,
                         lu->command_block_agent_address + SBP2_AGENT_RESET,
-                        &zero, sizeof(zero), complete_agent_reset_write, t);
+                        &z, sizeof(z), complete_agent_reset_write_no_wait, t);
+}
 
-        return 0;
+static void sbp2_set_generation(struct sbp2_logical_unit *lu, int generation)
+{
+        struct fw_card *card = fw_device(lu->tgt->unit->device.parent)->card;
+        unsigned long flags;
+
+        /* serialize with comparisons of lu->generation and card->generation */
+        spin_lock_irqsave(&card->lock, flags);
+        lu->generation = generation;
+        spin_unlock_irqrestore(&card->lock, flags);
+}
+
+static inline void sbp2_allow_block(struct sbp2_logical_unit *lu)
+{
+        /*
+         * We may access dont_block without taking card->lock here:
+         * All callers of sbp2_allow_block() and all callers of sbp2_unblock()
+         * are currently serialized against each other.
+         * And a wrong result in sbp2_conditionally_block()'s access of
+         * dont_block is rather harmless, it simply misses its first chance.
+         */
+        --lu->tgt->dont_block;
+}
+
+/*
+ * Blocks lu->tgt if all of the following conditions are met:
+ *   - Login, INQUIRY, and high-level SCSI setup of all of the target's
+ *     logical units have been finished (indicated by dont_block == 0).
+ *   - lu->generation is stale.
+ *
+ * Note, scsi_block_requests() must be called while holding card->lock,
+ * otherwise it might foil sbp2_[conditionally_]unblock()'s attempt to
+ * unblock the target.
+ */
+static void sbp2_conditionally_block(struct sbp2_logical_unit *lu)
+{
+        struct sbp2_target *tgt = lu->tgt;
+        struct fw_card *card = fw_device(tgt->unit->device.parent)->card;
+        struct Scsi_Host *shost =
+                container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
+        unsigned long flags;
+
+        spin_lock_irqsave(&card->lock, flags);
+        if (!tgt->dont_block && !lu->blocked &&
+            lu->generation != card->generation) {
+                lu->blocked = true;
+                if (++tgt->blocked == 1) {
+                        scsi_block_requests(shost);
+                        fw_notify("blocked %s\n", lu->tgt->bus_id);
+                }
+        }
+        spin_unlock_irqrestore(&card->lock, flags);
+}
+
+/*
+ * Unblocks lu->tgt as soon as all its logical units can be unblocked.
+ * Note, it is harmless to run scsi_unblock_requests() outside the
+ * card->lock protected section.  On the other hand, running it inside
+ * the section might clash with shost->host_lock.
+ */
+static void sbp2_conditionally_unblock(struct sbp2_logical_unit *lu)
+{
+        struct sbp2_target *tgt = lu->tgt;
+        struct fw_card *card = fw_device(tgt->unit->device.parent)->card;
+        struct Scsi_Host *shost =
+                container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
+        unsigned long flags;
+        bool unblock = false;
+
+        spin_lock_irqsave(&card->lock, flags);
+        if (lu->blocked && lu->generation == card->generation) {
+                lu->blocked = false;
+                unblock = --tgt->blocked == 0;
+        }
+        spin_unlock_irqrestore(&card->lock, flags);
+
+        if (unblock) {
+                scsi_unblock_requests(shost);
+                fw_notify("unblocked %s\n", lu->tgt->bus_id);
+        }
+}
+
+/*
+ * Prevents future blocking of tgt and unblocks it.
+ * Note, it is harmless to run scsi_unblock_requests() outside the
+ * card->lock protected section.  On the other hand, running it inside
+ * the section might clash with shost->host_lock.
+ */
+static void sbp2_unblock(struct sbp2_target *tgt)
+{
+        struct fw_card *card = fw_device(tgt->unit->device.parent)->card;
+        struct Scsi_Host *shost =
+                container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
+        unsigned long flags;
+
+        spin_lock_irqsave(&card->lock, flags);
+        ++tgt->dont_block;
+        spin_unlock_irqrestore(&card->lock, flags);
+
+        scsi_unblock_requests(shost);
+}
+
+static int sbp2_lun2int(u16 lun)
+{
+        struct scsi_lun eight_bytes_lun;
+
+        memset(&eight_bytes_lun, 0, sizeof(eight_bytes_lun));
+        eight_bytes_lun.scsi_lun[0] = (lun >> 8) & 0xff;
+        eight_bytes_lun.scsi_lun[1] = lun & 0xff;
+
+        return scsilun_to_int(&eight_bytes_lun);
 }
 
 static void sbp2_release_target(struct kref *kref)
@@ -621,26 +768,31 @@ static void sbp2_release_target(struct kref *kref)
         struct sbp2_logical_unit *lu, *next;
         struct Scsi_Host *shost =
                 container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
+        struct scsi_device *sdev;
         struct fw_device *device = fw_device(tgt->unit->device.parent);
 
-        list_for_each_entry_safe(lu, next, &tgt->lu_list, link) {
-                if (lu->sdev)
-                        scsi_remove_device(lu->sdev);
+        /* prevent deadlocks */
+        sbp2_unblock(tgt);
 
-                if (!fw_device_is_shutdown(device))
-                        sbp2_send_management_orb(lu, tgt->node_id,
-                                        lu->generation, SBP2_LOGOUT_REQUEST,
-                                        lu->login_id, NULL);
+        list_for_each_entry_safe(lu, next, &tgt->lu_list, link) {
+                sdev = scsi_device_lookup(shost, 0, 0, sbp2_lun2int(lu->lun));
+                if (sdev) {
+                        scsi_remove_device(sdev);
+                        scsi_device_put(sdev);
+                }
+                sbp2_send_management_orb(lu, tgt->node_id, lu->generation,
+                                SBP2_LOGOUT_REQUEST, lu->login_id, NULL);
 
                 fw_core_remove_address_handler(&lu->address_handler);
                 list_del(&lu->link);
                 kfree(lu);
         }
         scsi_remove_host(shost);
-        fw_notify("released %s\n", tgt->unit->device.bus_id);
+        fw_notify("released %s\n", tgt->bus_id);
 
         put_device(&tgt->unit->device);
         scsi_host_put(shost);
+        fw_device_put(device);
 }
 
 static struct workqueue_struct *sbp2_wq;
@@ -666,33 +818,42 @@ static void sbp2_login(struct work_struct *work)
 {
         struct sbp2_logical_unit *lu =
                 container_of(work, struct sbp2_logical_unit, work.work);
-        struct Scsi_Host *shost =
-                container_of((void *)lu->tgt, struct Scsi_Host, hostdata[0]);
+        struct sbp2_target *tgt = lu->tgt;
+        struct fw_device *device = fw_device(tgt->unit->device.parent);
+        struct Scsi_Host *shost;
         struct scsi_device *sdev;
-        struct scsi_lun eight_bytes_lun;
-        struct fw_unit *unit = lu->tgt->unit;
-        struct fw_device *device = fw_device(unit->device.parent);
         struct sbp2_login_response response;
         int generation, node_id, local_node_id;
 
+        if (fw_device_is_shutdown(device))
+                goto out;
+
         generation    = device->generation;
         smp_rmb();    /* node_id must not be older than generation */
         node_id       = device->node_id;
         local_node_id = device->card->node_id;
 
+        /* If this is a re-login attempt, log out, or we might be rejected. */
+        if (lu->has_sdev)
+                sbp2_send_management_orb(lu, device->node_id, generation,
+                                SBP2_LOGOUT_REQUEST, lu->login_id, NULL);
+
         if (sbp2_send_management_orb(lu, node_id, generation,
                                 SBP2_LOGIN_REQUEST, lu->lun, &response) < 0) {
-                if (lu->retries++ < 5)
+                if (lu->retries++ < 5) {
                         sbp2_queue_work(lu, DIV_ROUND_UP(HZ, 5));
-                else
-                        fw_error("failed to login to %s LUN %04x\n",
-                                 unit->device.bus_id, lu->lun);
+                } else {
+                        fw_error("%s: failed to login to LUN %04x\n",
+                                 tgt->bus_id, lu->lun);
+                        /* Let any waiting I/O fail from now on. */
+                        sbp2_unblock(lu->tgt);
+                }
                 goto out;
         }
 
-        lu->generation        = generation;
-        lu->tgt->node_id      = node_id;
-        lu->tgt->address_high = local_node_id << 16;
+        tgt->node_id      = node_id;
+        tgt->address_high = local_node_id << 16;
+        sbp2_set_generation(lu, generation);
 
         /* Get command block agent offset and login id. */
         lu->command_block_agent_address =
@@ -700,8 +861,8 @@ static void sbp2_login(struct work_struct *work)
                 response.command_block_agent.low;
         lu->login_id = LOGIN_RESPONSE_GET_LOGIN_ID(response);
 
-        fw_notify("logged in to %s LUN %04x (%d retries)\n",
-                  unit->device.bus_id, lu->lun, lu->retries);
+        fw_notify("%s: logged in to LUN %04x (%d retries)\n",
+                  tgt->bus_id, lu->lun, lu->retries);
 
 #if 0
         /* FIXME: The linux1394 sbp2 does this last step. */
@@ -711,26 +872,58 @@ static void sbp2_login(struct work_struct *work)
         PREPARE_DELAYED_WORK(&lu->work, sbp2_reconnect);
         sbp2_agent_reset(lu);
 
-        memset(&eight_bytes_lun, 0, sizeof(eight_bytes_lun));
-        eight_bytes_lun.scsi_lun[0] = (lu->lun >> 8) & 0xff;
-        eight_bytes_lun.scsi_lun[1] = lu->lun & 0xff;
+        /* This was a re-login. */
+        if (lu->has_sdev) {
+                sbp2_cancel_orbs(lu);
+                sbp2_conditionally_unblock(lu);
+                goto out;
+        }
 
-        sdev = __scsi_add_device(shost, 0, 0,
-                                 scsilun_to_int(&eight_bytes_lun), lu);
-        if (IS_ERR(sdev)) {
-                sbp2_send_management_orb(lu, node_id, generation,
-                                SBP2_LOGOUT_REQUEST, lu->login_id, NULL);
-                /*
-                 * Set this back to sbp2_login so we fall back and
-                 * retry login on bus reset.
-                 */
-                PREPARE_DELAYED_WORK(&lu->work, sbp2_login);
-        } else {
-                lu->sdev = sdev;
+        if (lu->tgt->workarounds & SBP2_WORKAROUND_DELAY_INQUIRY)
+                ssleep(SBP2_INQUIRY_DELAY);
+
+        shost = container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
+        sdev = __scsi_add_device(shost, 0, 0, sbp2_lun2int(lu->lun), lu);
+        /*
+         * FIXME:  We are unable to perform reconnects while in sbp2_login().
+         * Therefore __scsi_add_device() will get into trouble if a bus reset
+         * happens in parallel.  It will either fail or leave us with an
+         * unusable sdev.  As a workaround we check for this and retry the
+         * whole login and SCSI probing.
+         */
+
+        /* Reported error during __scsi_add_device() */
+        if (IS_ERR(sdev))
+                goto out_logout_login;
+
+        /* Unreported error during __scsi_add_device() */
+        smp_rmb(); /* get current card generation */
+        if (generation != device->card->generation) {
+                scsi_remove_device(sdev);
                 scsi_device_put(sdev);
+                goto out_logout_login;
         }
+
+        /* No error during __scsi_add_device() */
+        lu->has_sdev = true;
+        scsi_device_put(sdev);
+        sbp2_allow_block(lu);
+        goto out;
+
+ out_logout_login:
+        smp_rmb(); /* generation may have changed */
+        generation = device->generation;
+        smp_rmb(); /* node_id must not be older than generation */
+
+        sbp2_send_management_orb(lu, device->node_id, generation,
+                                 SBP2_LOGOUT_REQUEST, lu->login_id, NULL);
+        /*
+         * If a bus reset happened, sbp2_update will have requeued
+         * lu->work already.  Reset the work from reconnect to login.
+         */
+        PREPARE_DELAYED_WORK(&lu->work, sbp2_login);
  out:
-        sbp2_target_put(lu->tgt);
+        sbp2_target_put(tgt);
 }
 
 static int sbp2_add_logical_unit(struct sbp2_target *tgt, int lun_entry)
@@ -751,10 +944,12 @@ static int sbp2_add_logical_unit(struct sbp2_target *tgt, int lun_entry)
                 return -ENOMEM;
         }
 
-        lu->tgt  = tgt;
-        lu->sdev = NULL;
-        lu->lun  = lun_entry & 0xffff;
-        lu->retries = 0;
+        lu->tgt      = tgt;
+        lu->lun      = lun_entry & 0xffff;
+        lu->retries  = 0;
+        lu->has_sdev = false;
+        lu->blocked  = false;
+        ++tgt->dont_block;
         INIT_LIST_HEAD(&lu->orb_list);
         INIT_DELAYED_WORK(&lu->work, sbp2_login);
 
@@ -813,7 +1008,7 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory,
                         if (timeout > tgt->mgt_orb_timeout)
                                 fw_notify("%s: config rom contains %ds "
                                           "management ORB timeout, limiting "
-                                          "to %ds\n", tgt->unit->device.bus_id,
+                                          "to %ds\n", tgt->bus_id,
                                           timeout / 1000,
                                           tgt->mgt_orb_timeout / 1000);
                         break;
@@ -836,12 +1031,12 @@ static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model,
                                   u32 firmware_revision)
 {
         int i;
-        unsigned w = sbp2_param_workarounds;
+        unsigned int w = sbp2_param_workarounds;
 
         if (w)
                 fw_notify("Please notify linux1394-devel@lists.sourceforge.net "
                           "if you need the workarounds parameter for %s\n",
-                          tgt->unit->device.bus_id);
+                          tgt->bus_id);
 
         if (w & SBP2_WORKAROUND_OVERRIDE)
                 goto out;
@@ -863,8 +1058,7 @@ static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model,
         if (w)
                 fw_notify("Workarounds for %s: 0x%x "
                           "(firmware_revision 0x%06x, model_id 0x%06x)\n",
-                          tgt->unit->device.bus_id,
-                          w, firmware_revision, model);
+                          tgt->bus_id, w, firmware_revision, model);
         tgt->workarounds = w;
 }
 
@@ -888,6 +1082,7 @@ static int sbp2_probe(struct device *dev)
         tgt->unit = unit;
         kref_init(&tgt->kref);
         INIT_LIST_HEAD(&tgt->lu_list);
+        tgt->bus_id = unit->device.bus_id;
 
         if (fw_device_enable_phys_dma(device) < 0)
                 goto fail_shost_put;
@@ -895,6 +1090,8 @@ static int sbp2_probe(struct device *dev)
         if (scsi_add_host(shost, &unit->device) < 0)
                 goto fail_shost_put;
 
+        fw_device_get(device);
+
         /* Initialize to values that won't match anything in our table. */
         firmware_revision = 0xff000000;
         model = 0xff000000;
@@ -938,10 +1135,13 @@ static void sbp2_reconnect(struct work_struct *work)
 {
         struct sbp2_logical_unit *lu =
                 container_of(work, struct sbp2_logical_unit, work.work);
-        struct fw_unit *unit = lu->tgt->unit;
-        struct fw_device *device = fw_device(unit->device.parent);
+        struct sbp2_target *tgt = lu->tgt;
+        struct fw_device *device = fw_device(tgt->unit->device.parent);
         int generation, node_id, local_node_id;
 
+        if (fw_device_is_shutdown(device))
+                goto out;
+
         generation    = device->generation;
         smp_rmb();    /* node_id must not be older than generation */
         node_id       = device->node_id;
@@ -950,10 +1150,17 @@ static void sbp2_reconnect(struct work_struct *work)
         if (sbp2_send_management_orb(lu, node_id, generation,
                                      SBP2_RECONNECT_REQUEST,
                                      lu->login_id, NULL) < 0) {
-                if (lu->retries++ >= 5) {
-                        fw_error("failed to reconnect to %s\n",
-                                 unit->device.bus_id);
-                        /* Fall back and try to log in again. */
+                /*
+                 * If reconnect was impossible even though we are in the
+                 * current generation, fall back and try to log in again.
+                 *
+                 * We could check for "Function rejected" status, but
+                 * looking at the bus generation as simpler and more general.
+                 */
+                smp_rmb(); /* get current card generation */
+                if (generation == device->card->generation ||
+                    lu->retries++ >= 5) {
+                        fw_error("%s: failed to reconnect\n", tgt->bus_id);
                         lu->retries = 0;
                         PREPARE_DELAYED_WORK(&lu->work, sbp2_login);
                 }
@@ -961,17 +1168,18 @@ static void sbp2_reconnect(struct work_struct *work)
                 goto out;
         }
 
-        lu->generation        = generation;
-        lu->tgt->node_id      = node_id;
-        lu->tgt->address_high = local_node_id << 16;
+        tgt->node_id      = node_id;
+        tgt->address_high = local_node_id << 16;
+        sbp2_set_generation(lu, generation);
 
-        fw_notify("reconnected to %s LUN %04x (%d retries)\n",
-                  unit->device.bus_id, lu->lun, lu->retries);
+        fw_notify("%s: reconnected to LUN %04x (%d retries)\n",
+                  tgt->bus_id, lu->lun, lu->retries);
 
         sbp2_agent_reset(lu);
         sbp2_cancel_orbs(lu);
+        sbp2_conditionally_unblock(lu);
  out:
-        sbp2_target_put(lu->tgt);
+        sbp2_target_put(tgt);
 }
 
 static void sbp2_update(struct fw_unit *unit)
@@ -986,6 +1194,7 @@ static void sbp2_update(struct fw_unit *unit)
          * Iteration over tgt->lu_list is therefore safe here.
          */
         list_for_each_entry(lu, &tgt->lu_list, link) {
+                sbp2_conditionally_block(lu);
                 lu->retries = 0;
                 sbp2_queue_work(lu, 0);
         }
@@ -1063,7 +1272,7 @@ complete_command_orb(struct sbp2_orb *base_orb, struct sbp2_status *status)
 
         if (status != NULL) {
                 if (STATUS_GET_DEAD(*status))
-                        sbp2_agent_reset(orb->lu);
+                        sbp2_agent_reset_no_wait(orb->lu);
 
                 switch (STATUS_GET_RESPONSE(*status)) {
                 case SBP2_STATUS_REQUEST_COMPLETE:
@@ -1089,6 +1298,7 @@ complete_command_orb(struct sbp2_orb *base_orb, struct sbp2_status *status)
                  * or when sending the write (less likely).
                  */
                 result = DID_BUS_BUSY << 16;
+                sbp2_conditionally_block(orb->lu);
         }
 
         dma_unmap_single(device->card->device, orb->base.request_bus,
@@ -1197,7 +1407,7 @@ static int sbp2_scsi_queuecommand(struct scsi_cmnd *cmd, scsi_done_fn_t done)
         struct sbp2_logical_unit *lu = cmd->device->hostdata;
         struct fw_device *device = fw_device(lu->tgt->unit->device.parent);
         struct sbp2_command_orb *orb;
-        unsigned max_payload;
+        unsigned int max_payload;
         int retval = SCSI_MLQUEUE_HOST_BUSY;
 
         /*
@@ -1275,6 +1485,10 @@ static int sbp2_scsi_slave_alloc(struct scsi_device *sdev)
 {
         struct sbp2_logical_unit *lu = sdev->hostdata;
 
+        /* (Re-)Adding logical units via the SCSI stack is not supported. */
+        if (!lu)
+                return -ENOSYS;
+
         sdev->allow_restart = 1;
 
         /*
@@ -1319,7 +1533,7 @@ static int sbp2_scsi_abort(struct scsi_cmnd *cmd)
 {
         struct sbp2_logical_unit *lu = cmd->device->hostdata;
 
-        fw_notify("sbp2_scsi_abort\n");
+        fw_notify("%s: sbp2_scsi_abort\n", lu->tgt->bus_id);
         sbp2_agent_reset(lu);
         sbp2_cancel_orbs(lu);
 
diff --git a/drivers/firewire/fw-topology.c b/drivers/firewire/fw-topology.c
index 172c1867e9aa..e47bb040197a 100644
--- a/drivers/firewire/fw-topology.c
+++ b/drivers/firewire/fw-topology.c
@@ -383,6 +383,7 @@ void fw_destroy_nodes(struct fw_card *card)
         card->color++;
         if (card->local_node != NULL)
                 for_each_fw_node(card, card->local_node, report_lost_node);
+        card->local_node = NULL;
         spin_unlock_irqrestore(&card->lock, flags);
 }
 
diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h
index fa7967b57408..09cb72870454 100644
--- a/drivers/firewire/fw-transaction.h
+++ b/drivers/firewire/fw-transaction.h
@@ -26,6 +26,7 @@
 #include <linux/fs.h>
 #include <linux/dma-mapping.h>
 #include <linux/firewire-constants.h>
+#include <asm/atomic.h>
 
 #define TCODE_IS_READ_REQUEST(tcode)    (((tcode) & ~1) == 4)
 #define TCODE_IS_BLOCK_PACKET(tcode)    (((tcode) &  1) != 0)
@@ -219,6 +220,7 @@ extern struct bus_type fw_bus_type;
 struct fw_card {
         const struct fw_card_driver *driver;
         struct device *device;
+        atomic_t device_count;
         struct kref kref;
 
         int node_id;
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 310e497b5838..c8d0e8715997 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -670,8 +670,8 @@ static void cdrom_buffer_sectors (ide_drive_t *drive, unsigned long sector,
  * and attempt to recover if there are problems.  Returns  0 if everything's
  * ok; nonzero if the request has been terminated.
  */
-static
-int ide_cd_check_ireason(ide_drive_t *drive, int len, int ireason, int rw)
+static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq,
+                                int len, int ireason, int rw)
 {
         /*
          * ireason == 0: the drive wants to receive data from us
@@ -701,6 +701,9 @@ int ide_cd_check_ireason(ide_drive_t *drive, int len, int ireason, int rw)
                                 drive->name, __FUNCTION__, ireason);
         }
 
+        if (rq->cmd_type == REQ_TYPE_ATA_PC)
+                rq->cmd_flags |= REQ_FAILED;
+
         cdrom_end_request(drive, 0);
         return -1;
 }
@@ -1071,11 +1074,11 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
         /*
          * check which way to transfer data
          */
-        if (blk_fs_request(rq) || blk_pc_request(rq)) {
-                if (ide_cd_check_ireason(drive, len, ireason, write))
-                        return ide_stopped;
+        if (ide_cd_check_ireason(drive, rq, len, ireason, write))
+                return ide_stopped;
 
-                if (blk_fs_request(rq) && write == 0) {
+        if (blk_fs_request(rq)) {
+                if (write == 0) {
                         int nskip;
 
                         if (ide_cd_check_transfer_size(drive, len)) {
@@ -1101,16 +1104,9 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
         if (ireason == 0) {
                 write = 1;
                 xferfunc = HWIF(drive)->atapi_output_bytes;
-        } else if (ireason == 2 || (ireason == 1 &&
-                   (blk_fs_request(rq) || blk_pc_request(rq)))) {
+        } else {
                 write = 0;
                 xferfunc = HWIF(drive)->atapi_input_bytes;
-        } else {
-                printk(KERN_ERR "%s: %s: The drive "
-                                "appears confused (ireason = 0x%02x). "
-                                "Trying to recover by ending request.\n",
-                                drive->name, __FUNCTION__, ireason);
-                goto end_request;
         }
 
         /*
@@ -1182,11 +1178,10 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
                         else
                                 rq->data += blen;
                 }
+                if (!write && blk_sense_request(rq))
+                        rq->sense_len += blen;
         }
 
-        if (write && blk_sense_request(rq))
-                rq->sense_len += thislen;
-
         /*
          * pad, if necessary
          */
@@ -1931,6 +1926,7 @@ static const struct cd_list_entry ide_cd_quirks_list[] = {
         { "MATSHITADVD-ROM SR-8186", NULL,   IDE_CD_FLAG_PLAY_AUDIO_OK      },
         { "MATSHITADVD-ROM SR-8176", NULL,   IDE_CD_FLAG_PLAY_AUDIO_OK      },
         { "MATSHITADVD-ROM SR-8174", NULL,   IDE_CD_FLAG_PLAY_AUDIO_OK      },
+        { "Optiarc DVD RW AD-5200A", NULL,   IDE_CD_FLAG_PLAY_AUDIO_OK      },
         { NULL, NULL, 0 }
 };
 
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 8f5bed471050..39501d130256 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -867,7 +867,7 @@ static void idedisk_setup (ide_drive_t *drive)
 
         /* Only print cache size when it was specified */
         if (id->buf_size)
-                printk (" w/%dKiB Cache", id->buf_size/2);
+                printk(KERN_CONT " w/%dKiB Cache", id->buf_size / 2);
 
         printk(KERN_CONT ", CHS=%d/%d/%d\n",
                          drive->bios_cyl, drive->bios_head, drive->bios_sect);
@@ -949,7 +949,8 @@ static void ide_device_shutdown(ide_drive_t *drive)
                 return;
         }
 
-        printk("Shutdown: %s\n", drive->name);
+        printk(KERN_INFO "Shutdown: %s\n", drive->name);
+
         drive->gendev.bus->suspend(&drive->gendev, PMSG_SUSPEND);
 }
 
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index d0e7b537353e..2de99e4be5c9 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -1,9 +1,13 @@
 /*
+ *  IDE DMA support (including IDE PCI BM-DMA).
+ *
  *  Copyright (C) 1995-1998   Mark Lord
  *  Copyright (C) 1999-2000   Andre Hedrick <andre@linux-ide.org>
  *  Copyright (C) 2004, 2007  Bartlomiej Zolnierkiewicz
  *
  *  May be copied or modified under the terms of the GNU General Public License
+ *
+ *  DMA is supported for all IDE devices (disk drives, cdroms, tapes, floppies).
  */
 
 /*
@@ -11,49 +15,6 @@
  */
 
 /*
- * This module provides support for the bus-master IDE DMA functions
- * of various PCI chipsets, including the Intel PIIX (i82371FB for
- * the 430 FX chipset), the PIIX3 (i82371SB for the 430 HX/VX and 
- * 440 chipsets), and the PIIX4 (i82371AB for the 430 TX chipset)
- * ("PIIX" stands for "PCI ISA IDE Xcellerator").
- *
- * Pretty much the same code works for other IDE PCI bus-mastering chipsets.
- *
- * DMA is supported for all IDE devices (disk drives, cdroms, tapes, floppies).
- *
- * By default, DMA support is prepared for use, but is currently enabled only
- * for drives which already have DMA enabled (UltraDMA or mode 2 multi/single),
- * or which are recognized as "good" (see table below).  Drives with only mode0
- * or mode1 (multi/single) DMA should also work with this chipset/driver
- * (eg. MC2112A) but are not enabled by default.
- *
- * Use "hdparm -i" to view modes supported by a given drive.
- *
- * The hdparm-3.5 (or later) utility can be used for manually enabling/disabling
- * DMA support, but must be (re-)compiled against this kernel version or later.
- *
- * To enable DMA, use "hdparm -d1 /dev/hd?" on a per-drive basis after booting.
- * If problems arise, ide.c will disable DMA operation after a few retries.
- * This error recovery mechanism works and has been extremely well exercised.
- *
- * IDE drives, depending on their vintage, may support several different modes
- * of DMA operation.  The boot-time modes are indicated with a "*" in
- * the "hdparm -i" listing, and can be changed with *knowledgeable* use of
- * the "hdparm -X" feature.  There is seldom a need to do this, as drives
- * normally power-up with their "best" PIO/DMA modes enabled.
- *
- * Testing has been done with a rather extensive number of drives,
- * with Quantum & Western Digital models generally outperforming the pack,
- * and Fujitsu & Conner (and some Seagate which are really Conner) drives
- * showing more lackluster throughput.
- *
- * Keep an eye on /var/adm/messages for "DMA disabled" messages.
- *
- * Some people have reported trouble with Intel Zappa motherboards.
- * This can be fixed by upgrading the AMI BIOS to version 1.00.04.BS0,
- * available from ftp://ftp.intel.com/pub/bios/10004bs0.exe
- * (thanks to Glen Morrell <glen@spin.Stanford.edu> for researching this).
- *
  * Thanks to "Christopher J. Reimer" <reimer@doe.carleton.ca> for
  * fixing the problem with the BIOS on some Acer motherboards.
  *
@@ -65,11 +26,6 @@
  *
  * Most importantly, thanks to Robert Bringman <rob@mars.trion.com>
  * for supplying a Promise UDMA board & WD UDMA drive for this work!
- *
- * And, yes, Intel Zappa boards really *do* use both PIIX IDE ports.
- *
- * ATA-66/100 and recovery functions, I forgot the rest......
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 4a2cb2868226..194ecb0049eb 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -756,7 +756,8 @@ static int ide_probe_port(ide_hwif_t *hwif)
 
         BUG_ON(hwif->present);
 
-        if (hwif->noprobe)
+        if (hwif->noprobe ||
+            (hwif->drives[0].noprobe && hwif->drives[1].noprobe))
                 return -EACCES;
 
         /*
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 0598ecfd5f37..43e0e0557776 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -3765,6 +3765,11 @@ static int ide_tape_probe(ide_drive_t *drive)
         g->fops = &idetape_block_ops;
         ide_register_region(g);
 
+        printk(KERN_WARNING "It is possible that this driver does not have any"
+                " users anymore and, as a result, it will be REMOVED soon."
+                " Please notify Bart <bzolnier@gmail.com> or Boris"
+                " <petkovbb@gmail.com> in case you still need it.\n");
+
         return 0;
 
 out_free_tape:
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 477833f0daf5..fa16bc30bbc9 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -590,11 +590,6 @@ void ide_unregister(unsigned int index, int init_default, int restore)
                 hwif->extra_ports = 0;
         }
 
-        /*
-         * Note that we only release the standard ports,
-         * and do not even try to handle any extra ports
-         * allocated for weird IDE interface chipsets.
-         */
         ide_hwif_release_regions(hwif);
 
         /* copy original settings */
@@ -1036,10 +1031,9 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
                         drive->nice1 = (arg >> IDE_NICE_1) & 1;
                         return 0;
                 case HDIO_DRIVE_RESET:
-                {
-                        unsigned long flags;
-                        if (!capable(CAP_SYS_ADMIN)) return -EACCES;
-                        
+                        if (!capable(CAP_SYS_ADMIN))
+                                return -EACCES;
+
                         /*
                          *      Abort the current command on the
                          *      group if there is one, taking
@@ -1058,17 +1052,15 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
                         ide_abort(drive, "drive reset");
 
                         BUG_ON(HWGROUP(drive)->handler);
-                                
+
                         /* Ensure nothing gets queued after we
                            drop the lock. Reset will clear the busy */
-                   
+
                         HWGROUP(drive)->busy = 1;
                         spin_unlock_irqrestore(&ide_lock, flags);
                         (void) ide_do_reset(drive);
 
                         return 0;
-                }
-
                 case HDIO_GET_BUSSTATE:
                         if (!capable(CAP_SYS_ADMIN))
                                 return -EACCES;
@@ -1449,7 +1441,7 @@ static int __init ide_setup(char *s)
 
                         case -1: /* "noprobe" */
                                 hwif->noprobe = 1;
-                                goto done;
+                                goto obsolete_option;
 
                         case 1: /* base */
                                 vals[1] = vals[0] + 0x206; /* default ctl */
diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c
index bba29df5f21d..2f4f47ad602f 100644
--- a/drivers/ide/legacy/qd65xx.c
+++ b/drivers/ide/legacy/qd65xx.c
@@ -334,43 +334,6 @@ static void __init qd6580_port_init_devs(ide_hwif_t *hwif)
         hwif->drives[1].drive_data = t2;
 }
 
-/*
- * qd_unsetup:
- *
- * called to unsetup an ata channel : back to default values, unlinks tuning
- */
-/*
-static void __exit qd_unsetup(ide_hwif_t *hwif)
-{
-        u8 config = hwif->config_data;
-        int base = hwif->select_data;
-        void *set_pio_mode = (void *)hwif->set_pio_mode;
-
-        if (hwif->chipset != ide_qd65xx)
-                return;
-
-        printk(KERN_NOTICE "%s: back to defaults\n", hwif->name);
-
-        hwif->selectproc = NULL;
-        hwif->set_pio_mode = NULL;
-
-        if (set_pio_mode == (void *)qd6500_set_pio_mode) {
-                // will do it for both
-                outb(QD6500_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
-        } else if (set_pio_mode == (void *)qd6580_set_pio_mode) {
-                if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) {
-                        outb(QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
-                        outb(QD6580_DEF_DATA2, QD_TIMREG(&hwif->drives[1]));
-                } else {
-                        outb(hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
-                }
-        } else {
-                printk(KERN_WARNING "Unknown qd65xx tuning fonction !\n");
-                printk(KERN_WARNING "keeping settings !\n");
-        }
-}
-*/
-
 static const struct ide_port_info qd65xx_port_info __initdata = {
         .chipset                = ide_qd65xx,
         .host_flags             = IDE_HFLAG_IO_32BIT |
@@ -444,6 +407,8 @@ static int __init qd_probe(int base)
                 printk(KERN_DEBUG "qd6580: config=%#x, control=%#x, ID3=%u\n",
                         config, control, QD_ID3);
 
+                outb(QD_DEF_CONTR, QD_CONTROL_PORT);
+
                 if (control & QD_CONTR_SEC_DISABLED) {
                         /* secondary disabled */
 
@@ -460,8 +425,6 @@ static int __init qd_probe(int base)
 
                         ide_device_add(idx, &qd65xx_port_info);
 
-                        outb(QD_DEF_CONTR, QD_CONTROL_PORT);
-
                         return 1;
                 } else {
                         ide_hwif_t *mate;
@@ -487,8 +450,6 @@ static int __init qd_probe(int base)
 
                         ide_device_add(idx, &qd65xx_port_info);
 
-                        outb(QD_DEF_CONTR, QD_CONTROL_PORT);
-
                         return 0; /* no other qd65xx possible */
                 }
         }
diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c
index bd24dad3cfc6..ec667982809c 100644
--- a/drivers/ide/pci/cmd640.c
+++ b/drivers/ide/pci/cmd640.c
@@ -787,7 +787,8 @@ static int __init cmd640x_init(void)
         /*
          * Try to enable the secondary interface, if not already enabled
          */
-        if (cmd_hwif1->noprobe) {
+        if (cmd_hwif1->noprobe ||
+            (cmd_hwif1->drives[0].noprobe && cmd_hwif1->drives[1].noprobe)) {
                 port2 = "not probed";
         } else {
                 b = get_cmd640_reg(CNTRL);
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
index d0f7bb8b8adf..6357bb6269ab 100644
--- a/drivers/ide/pci/hpt366.c
+++ b/drivers/ide/pci/hpt366.c
@@ -1570,10 +1570,12 @@ static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_devic
                 if (rev < 3)
                         info = &hpt36x;
                 else {
-                        static const struct hpt_info *hpt37x_info[] =
-                                { &hpt370, &hpt370a, &hpt372, &hpt372n };
-
-                        info = hpt37x_info[min_t(u8, rev, 6) - 3];
+                        switch (min_t(u8, rev, 6)) {
+                        case 3: info = &hpt370;  break;
+                        case 4: info = &hpt370a; break;
+                        case 5: info = &hpt372;  break;
+                        case 6: info = &hpt372n; break;
+                        }
                         idx++;
                 }
                 break;
@@ -1626,7 +1628,7 @@ static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_devic
         return ide_setup_pci_device(dev, &d);
 }
 
-static const struct pci_device_id hpt366_pci_tbl[] = {
+static const struct pci_device_id hpt366_pci_tbl[] __devinitconst = {
         { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366),  0 },
         { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372),  1 },
         { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302),  2 },
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index 28e155a9e2a5..9e2b1964d71a 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -183,6 +183,9 @@ MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device "
  *   Avoids access beyond actual disk limits on devices with an off-by-one bug.
  *   Don't use this with devices which don't have this bug.
  *
+ * - delay inquiry
+ *   Wait extra SBP2_INQUIRY_DELAY seconds after login before SCSI inquiry.
+ *
  * - override internal blacklist
  *   Instead of adding to the built-in blacklist, use only the workarounds
  *   specified in the module load parameter.
@@ -195,6 +198,7 @@ MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0"
         ", 36 byte inquiry = "    __stringify(SBP2_WORKAROUND_INQUIRY_36)
         ", skip mode page 8 = "   __stringify(SBP2_WORKAROUND_MODE_SENSE_8)
         ", fix capacity = "       __stringify(SBP2_WORKAROUND_FIX_CAPACITY)
+        ", delay inquiry = "      __stringify(SBP2_WORKAROUND_DELAY_INQUIRY)
         ", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
         ", or a combination)");
 
@@ -357,6 +361,11 @@ static const struct {
                 .workarounds            = SBP2_WORKAROUND_INQUIRY_36 |
                                           SBP2_WORKAROUND_MODE_SENSE_8,
         },
+        /* DViCO Momobay FX-3A with TSB42AA9A bridge */ {
+                .firmware_revision      = 0x002800,
+                .model_id               = 0x000000,
+                .workarounds            = SBP2_WORKAROUND_DELAY_INQUIRY,
+        },
         /* Initio bridges, actually only needed for some older ones */ {
                 .firmware_revision      = 0x000200,
                 .model_id               = SBP2_ROM_VALUE_WILDCARD,
@@ -914,6 +923,9 @@ static int sbp2_start_device(struct sbp2_lu *lu)
         sbp2_agent_reset(lu, 1);
         sbp2_max_speed_and_size(lu);
 
+        if (lu->workarounds & SBP2_WORKAROUND_DELAY_INQUIRY)
+                ssleep(SBP2_INQUIRY_DELAY);
+
         error = scsi_add_device(lu->shost, 0, lu->ud->id, 0);
         if (error) {
                 SBP2_ERR("scsi_add_device failed");
@@ -1962,6 +1974,9 @@ static int sbp2scsi_slave_alloc(struct scsi_device *sdev)
 {
         struct sbp2_lu *lu = (struct sbp2_lu *)sdev->host->hostdata[0];
 
+        if (sdev->lun != 0 || sdev->id != lu->ud->id || sdev->channel != 0)
+                return -ENODEV;
+
         lu->sdev = sdev;
         sdev->allow_restart = 1;
 
diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h
index d2ecb0d8a1bb..80d8e097b065 100644
--- a/drivers/ieee1394/sbp2.h
+++ b/drivers/ieee1394/sbp2.h
@@ -343,6 +343,8 @@ enum sbp2lu_state_types {
 #define SBP2_WORKAROUND_INQUIRY_36      0x2
 #define SBP2_WORKAROUND_MODE_SENSE_8    0x4
 #define SBP2_WORKAROUND_FIX_CAPACITY    0x8
+#define SBP2_WORKAROUND_DELAY_INQUIRY   0x10
+#define SBP2_INQUIRY_DELAY              12
 #define SBP2_WORKAROUND_OVERRIDE        0x100
 
 #endif /* SBP2_H */
diff --git a/drivers/infiniband/hw/cxgb3/iwch_mem.c b/drivers/infiniband/hw/cxgb3/iwch_mem.c
index 73bfd1656f86..b8797c66676d 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_mem.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_mem.c
@@ -136,14 +136,8 @@ int build_phys_page_list(struct ib_phys_buf *buffer_list,
 
         /* Find largest page shift we can use to cover buffers */
         for (*shift = PAGE_SHIFT; *shift < 27; ++(*shift))
-                if (num_phys_buf > 1) {
-                        if ((1ULL << *shift) & mask)
-                                break;
-                } else
-                        if (1ULL << *shift >=
-                            buffer_list[0].size +
-                            (buffer_list[0].addr & ((1ULL << *shift) - 1)))
-                                break;
+                if ((1ULL << *shift) & mask)
+                        break;
 
         buffer_list[0].size += buffer_list[0].addr & ((1ULL << *shift) - 1);
         buffer_list[0].addr &= ~0ull << *shift;
diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
index 7f8853b44ee1..b2112f5a422f 100644
--- a/drivers/infiniband/hw/nes/nes.c
+++ b/drivers/infiniband/hw/nes/nes.c
@@ -567,12 +567,12 @@ static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_i
 
         /* Init the adapter */
         nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
-        nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
         if (!nesdev->nesadapter) {
                 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
                 ret = -ENOMEM;
                 goto bail5;
         }
+        nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
 
         /* nesdev->base_doorbell_index =
                         nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
index fd57e8a1582f..a48b288618ec 100644
--- a/drivers/infiniband/hw/nes/nes.h
+++ b/drivers/infiniband/hw/nes/nes.h
@@ -285,6 +285,21 @@ struct nes_device {
 };
 
 
+static inline __le32 get_crc_value(struct nes_v4_quad *nes_quad)
+{
+        u32 crc_value;
+        crc_value = crc32c(~0, (void *)nes_quad, sizeof (struct nes_v4_quad));
+
+        /*
+         * With commit ef19454b ("[LIB] crc32c: Keep intermediate crc
+         * state in cpu order"), behavior of crc32c changes on
+         * big-endian platforms.  Our algorithm expects the previous
+         * behavior; otherwise we have RDMA connection establishment
+         * issue on big-endian.
+         */
+        return cpu_to_le32(crc_value);
+}
+
 static inline void
 set_wqe_64bit_value(__le32 *wqe_words, u32 index, u64 value)
 {
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index bd5cfeaac203..39adb267fb15 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -370,11 +370,11 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb,
         int ret = 0;
         u32 was_timer_set;
 
+        if (!cm_node)
+                return -EINVAL;
         new_send = kzalloc(sizeof(*new_send), GFP_ATOMIC);
         if (!new_send)
                 return -1;
-        if (!cm_node)
-                return -EINVAL;
 
         /* new_send->timetosend = currenttime */
         new_send->retrycount = NES_DEFAULT_RETRYS;
@@ -947,6 +947,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
                 nes_debug(NES_DBG_CM, "destroying listener (%p)\n", listener);
 
                 kfree(listener);
+                listener = NULL;
                 ret = 0;
                 cm_listens_destroyed++;
         } else {
@@ -2319,6 +2320,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
         struct iw_cm_event cm_event;
         struct nes_hw_qp_wqe *wqe;
         struct nes_v4_quad nes_quad;
+        u32 crc_value;
         int ret;
 
         ibqp = nes_get_qp(cm_id->device, conn_param->qpn);
@@ -2435,8 +2437,8 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
         nes_quad.TcpPorts[1]   = cm_id->local_addr.sin_port;
 
         /* Produce hash key */
-        nesqp->hte_index = cpu_to_be32(
-                        crc32c(~0, (void *)&nes_quad, sizeof(nes_quad)) ^ 0xffffffff);
+        crc_value = get_crc_value(&nes_quad);
+        nesqp->hte_index = cpu_to_be32(crc_value ^ 0xffffffff);
         nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, CRC = 0x%08X\n",
                         nesqp->hte_index, nesqp->hte_index & adapter->hte_index_mask);
 
@@ -2750,6 +2752,7 @@ void cm_event_connected(struct nes_cm_event *event)
         struct iw_cm_event cm_event;
         struct nes_hw_qp_wqe *wqe;
         struct nes_v4_quad nes_quad;
+        u32 crc_value;
         int ret;
 
         /* get all our handles */
@@ -2827,8 +2830,8 @@ void cm_event_connected(struct nes_cm_event *event)
         nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port;
 
         /* Produce hash key */
-        nesqp->hte_index = cpu_to_be32(
-                        crc32c(~0, (void *)&nes_quad, sizeof(nes_quad)) ^ 0xffffffff);
+        crc_value = get_crc_value(&nes_quad);
+        nesqp->hte_index = cpu_to_be32(crc_value ^ 0xffffffff);
         nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, After CRC = 0x%08X\n",
                         nesqp->hte_index, nesqp->hte_index & nesadapter->hte_index_mask);
 
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 7c4c0fbf0abd..49e53e4c1ebe 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -156,15 +156,14 @@ static void nes_nic_tune_timer(struct nes_device *nesdev)
 
         spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
 
-        if (shared_timer->cq_count_old < cq_count) {
-                if (cq_count > shared_timer->threshold_low)
-                        shared_timer->cq_direction_downward=0;
-        }
-        if (shared_timer->cq_count_old >= cq_count)
+        if (shared_timer->cq_count_old <= cq_count)
+                shared_timer->cq_direction_downward = 0;
+        else
                 shared_timer->cq_direction_downward++;
         shared_timer->cq_count_old = cq_count;
         if (shared_timer->cq_direction_downward > NES_NIC_CQ_DOWNWARD_TREND) {
-                if (cq_count <= shared_timer->threshold_low) {
+                if (cq_count <= shared_timer->threshold_low &&
+                    shared_timer->threshold_low > 4) {
                         shared_timer->threshold_low = shared_timer->threshold_low/2;
                         shared_timer->cq_direction_downward=0;
                         nesdev->currcq_count = 0;
@@ -1728,7 +1727,6 @@ int nes_napi_isr(struct nes_device *nesdev)
                         nesdev->int_req &= ~NES_INT_TIMER;
                         nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
                         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
-                        nesadapter->tune_timer.timer_in_use_old = 0;
                 }
                 nesdev->deepcq_count = 0;
                 return 1;
@@ -1867,7 +1865,6 @@ void nes_dpc(unsigned long param)
                                         nesdev->int_req &= ~NES_INT_TIMER;
                                         nes_write32(nesdev->regs + NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
                                         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
-                                        nesdev->nesadapter->tune_timer.timer_in_use_old = 0;
                                 } else {
                                         nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff|(~nesdev->int_req));
                                 }
diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h
index 1e10df550c9e..b7e2844f096b 100644
--- a/drivers/infiniband/hw/nes/nes_hw.h
+++ b/drivers/infiniband/hw/nes/nes_hw.h
@@ -962,7 +962,7 @@ struct nes_arp_entry {
 #define DEFAULT_JUMBO_NES_QL_LOW    12
 #define DEFAULT_JUMBO_NES_QL_TARGET 40
 #define DEFAULT_JUMBO_NES_QL_HIGH   128
-#define NES_NIC_CQ_DOWNWARD_TREND   8
+#define NES_NIC_CQ_DOWNWARD_TREND   16
 
 struct nes_hw_tune_timer {
     //u16 cq_count;
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index 4dafbe16e82a..a651e9d9f0ef 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -929,7 +929,7 @@ static struct ib_pd *nes_alloc_pd(struct ib_device *ibdev,
                                 NES_MAX_USER_DB_REGIONS, nesucontext->first_free_db);
                 nes_debug(NES_DBG_PD, "find_first_zero_biton doorbells returned %u, mapping pd_id %u.\n",
                                 nespd->mmap_db_index, nespd->pd_id);
-                if (nespd->mmap_db_index > NES_MAX_USER_DB_REGIONS) {
+                if (nespd->mmap_db_index >= NES_MAX_USER_DB_REGIONS) {
                         nes_debug(NES_DBG_PD, "mmap_db_index > MAX\n");
                         nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num);
                         kfree(nespd);
@@ -1327,7 +1327,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
                                                                   (long long unsigned int)req.user_wqe_buffers);
                                                         nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num);
                                                         kfree(nesqp->allocated_buffer);
-                                                        return ERR_PTR(-ENOMEM);
+                                                        return ERR_PTR(-EFAULT);
                                                 }
                                         }
 
@@ -1674,6 +1674,7 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries,
                 }
                 nes_debug(NES_DBG_CQ, "CQ Virtual Address = %08lX, size = %u.\n",
                                 (unsigned long)req.user_cq_buffer, entries);
+                err = 1;
                 list_for_each_entry(nespbl, &nes_ucontext->cq_reg_mem_list, list) {
                         if (nespbl->user_base == (unsigned long )req.user_cq_buffer) {
                                 list_del(&nespbl->list);
@@ -1686,7 +1687,7 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries,
                 if (err) {
                         nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num);
                         kfree(nescq);
-                        return ERR_PTR(err);
+                        return ERR_PTR(-EFAULT);
                 }
 
                 pbl_entries = nespbl->pbl_size >> 3;
@@ -1831,9 +1832,6 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries,
                                 spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
                         }
                 }
-                nes_debug(NES_DBG_CQ, "iWARP CQ%u create timeout expired, major code = 0x%04X,"
-                                " minor code = 0x%04X\n",
-                                nescq->hw_cq.cq_number, cqp_request->major_code, cqp_request->minor_code);
                 if (!context)
                         pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem,
                                         nescq->hw_cq.cq_pbase);
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 8b10d9f23bef..c5263d63aca3 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -42,14 +42,14 @@ config INPUT_M68K_BEEP
 
 config INPUT_APANEL
         tristate "Fujitsu Lifebook Application Panel buttons"
-        depends on X86
-        select I2C_I801
+        depends on X86 && I2C && LEDS_CLASS
         select INPUT_POLLDEV
         select CHECK_SIGNATURE
         help
          Say Y here for support of the Application Panel buttons, used on
          Fujitsu Lifebook. These are attached to the mainboard through
-         an SMBus interface managed by the I2C Intel ICH (i801) driver.
+         an SMBus interface managed by the I2C Intel ICH (i801) driver,
+         which you should also build for this kernel.
 
          To compile this driver as a module, choose M here: the module will
          be called apanel.
diff --git a/drivers/isdn/hisax/hisax_fcpcipnp.c b/drivers/isdn/hisax/hisax_fcpcipnp.c
index 7993e01f9fc5..76043dedba5b 100644
--- a/drivers/isdn/hisax/hisax_fcpcipnp.c
+++ b/drivers/isdn/hisax/hisax_fcpcipnp.c
@@ -725,23 +725,6 @@ static int __devinit fcpcipnp_setup(struct fritz_adapter *adapter)
 
         switch (adapter->type) {
         case AVM_FRITZ_PCIV2:
-                retval = request_irq(adapter->irq, fcpci2_irq, IRQF_SHARED,
-                                     "fcpcipnp", adapter);
-                break;
-        case AVM_FRITZ_PCI:
-                retval = request_irq(adapter->irq, fcpci_irq, IRQF_SHARED,
-                                     "fcpcipnp", adapter);
-                break;
-        case AVM_FRITZ_PNP:
-                retval = request_irq(adapter->irq, fcpci_irq, 0,
-                                     "fcpcipnp", adapter);
-                break;
-        }
-        if (retval)
-                goto err_region;
-
-        switch (adapter->type) {
-        case AVM_FRITZ_PCIV2:
         case AVM_FRITZ_PCI:
                 val = inl(adapter->io);
                 break;
@@ -796,6 +779,23 @@ static int __devinit fcpcipnp_setup(struct fritz_adapter *adapter)
 
         switch (adapter->type) {
         case AVM_FRITZ_PCIV2:
+                retval = request_irq(adapter->irq, fcpci2_irq, IRQF_SHARED,
+                                     "fcpcipnp", adapter);
+                break;
+        case AVM_FRITZ_PCI:
+                retval = request_irq(adapter->irq, fcpci_irq, IRQF_SHARED,
+                                     "fcpcipnp", adapter);
+                break;
+        case AVM_FRITZ_PNP:
+                retval = request_irq(adapter->irq, fcpci_irq, 0,
+                                     "fcpcipnp", adapter);
+                break;
+        }
+        if (retval)
+                goto err_region;
+
+        switch (adapter->type) {
+        case AVM_FRITZ_PCIV2:
                 fcpci2_init(adapter);
                 isacsx_setup(&adapter->isac);
                 break;
diff --git a/drivers/isdn/i4l/isdn_ttyfax.c b/drivers/isdn/i4l/isdn_ttyfax.c
index f93de4a30355..78f7660c1d0e 100644
--- a/drivers/isdn/i4l/isdn_ttyfax.c
+++ b/drivers/isdn/i4l/isdn_ttyfax.c
@@ -906,7 +906,8 @@ isdn_tty_cmd_FCLASS2(char **p, modem_info * info)
                         sprintf(rs, "\r\n0-2");
                         isdn_tty_at_cout(rs, info);
                 } else {
-                        if ((f->phase != ISDN_FAX_PHASE_D) || (!info->faxonline & 1))
+                        if ((f->phase != ISDN_FAX_PHASE_D) ||
+                            (!(info->faxonline & 1)))
                                 PARSE_ERROR1;
                         par = isdn_getnum(p);
                         if ((par < 0) || (par > 2))
diff --git a/drivers/isdn/isdnloop/isdnloop.c b/drivers/isdn/isdnloop/isdnloop.c
index 655ef9a3f4df..a335c85a736e 100644
--- a/drivers/isdn/isdnloop/isdnloop.c
+++ b/drivers/isdn/isdnloop/isdnloop.c
@@ -1289,7 +1289,7 @@ isdnloop_command(isdn_ctrl * c, isdnloop_card * card)
                                 }
                                 break;
                 case ISDN_CMD_CLREAZ:
-                                if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
+                                if (!(card->flags & ISDNLOOP_FLAGS_RUNNING))
                                         return -ENODEV;
                                 if (card->leased)
                                         break;
@@ -1333,7 +1333,7 @@ isdnloop_command(isdn_ctrl * c, isdnloop_card * card)
                                 }
                                 break;
                 case ISDN_CMD_SETL3:
-                                if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
+                                if (!(card->flags & ISDNLOOP_FLAGS_RUNNING))
                                         return -ENODEV;
                                 return 0;
                 default:
@@ -1380,7 +1380,7 @@ if_writecmd(const u_char __user *buf, int len, int id, int channel)
         isdnloop_card *card = isdnloop_findcard(id);
 
         if (card) {
-                if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
+                if (!(card->flags & ISDNLOOP_FLAGS_RUNNING))
                         return -ENODEV;
                 return (isdnloop_writecmd(buf, len, 1, card));
         }
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 7aeceedcf7d4..831aed9c56ff 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1047,6 +1047,11 @@ void bitmap_daemon_work(struct bitmap *bitmap)
         if (time_before(jiffies, bitmap->daemon_lastrun + bitmap->daemon_sleep*HZ))
                 return;
         bitmap->daemon_lastrun = jiffies;
+        if (bitmap->allclean) {
+                bitmap->mddev->thread->timeout = MAX_SCHEDULE_TIMEOUT;
+                return;
+        }
+        bitmap->allclean = 1;
 
         for (j = 0; j < bitmap->chunks; j++) {
                 bitmap_counter_t *bmc;
@@ -1068,8 +1073,10 @@ void bitmap_daemon_work(struct bitmap *bitmap)
                                         clear_page_attr(bitmap, page, BITMAP_PAGE_NEEDWRITE);
 
                                 spin_unlock_irqrestore(&bitmap->lock, flags);
-                                if (need_write)
+                                if (need_write) {
                                         write_page(bitmap, page, 0);
+                                        bitmap->allclean = 0;
+                                }
                                 continue;
                         }
 
@@ -1098,6 +1105,9 @@ void bitmap_daemon_work(struct bitmap *bitmap)
 /*
   if (j < 100) printk("bitmap: j=%lu, *bmc = 0x%x\n", j, *bmc);
 */
+                        if (*bmc)
+                                bitmap->allclean = 0;
+
                         if (*bmc == 2) {
                                 *bmc=1; /* maybe clear the bit next time */
                                 set_page_attr(bitmap, page, BITMAP_PAGE_CLEAN);
@@ -1132,6 +1142,8 @@ void bitmap_daemon_work(struct bitmap *bitmap)
                 }
         }
 
+        if (bitmap->allclean == 0)
+                bitmap->mddev->thread->timeout = bitmap->daemon_sleep * HZ;
 }
 
 static bitmap_counter_t *bitmap_get_counter(struct bitmap *bitmap,
@@ -1226,6 +1238,7 @@ int bitmap_startwrite(struct bitmap *bitmap, sector_t offset, unsigned long sect
                         sectors -= blocks;
                 else sectors = 0;
         }
+        bitmap->allclean = 0;
         return 0;
 }
 
@@ -1296,6 +1309,7 @@ int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks,
                 }
         }
         spin_unlock_irq(&bitmap->lock);
+        bitmap->allclean = 0;
         return rv;
 }
 
@@ -1332,6 +1346,7 @@ void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, int *blocks, int ab
         }
  unlock:
         spin_unlock_irqrestore(&bitmap->lock, flags);
+        bitmap->allclean = 0;
 }
 
 void bitmap_close_sync(struct bitmap *bitmap)
@@ -1399,7 +1414,7 @@ static void bitmap_set_memory_bits(struct bitmap *bitmap, sector_t offset, int n
                 set_page_attr(bitmap, page, BITMAP_PAGE_CLEAN);
         }
         spin_unlock_irq(&bitmap->lock);
-
+        bitmap->allclean = 0;
 }
 
 /* dirty the memory and file bits for bitmap chunks "s" to "e" */
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 7da6ec244e15..827824a9f3e9 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1105,7 +1105,11 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version)
         rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256;
         bmask = queue_hardsect_size(rdev->bdev->bd_disk->queue)-1;
         if (rdev->sb_size & bmask)
-                rdev-> sb_size = (rdev->sb_size | bmask)+1;
+                rdev->sb_size = (rdev->sb_size | bmask) + 1;
+
+        if (minor_version
+            && rdev->data_offset < sb_offset + (rdev->sb_size/512))
+                return -EINVAL;
 
         if (sb->level == cpu_to_le32(LEVEL_MULTIPATH))
                 rdev->desc_nr = -1;
@@ -1137,7 +1141,7 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version)
                 else
                         ret = 0;
         }
-        if (minor_version) 
+        if (minor_version)
                 rdev->size = ((rdev->bdev->bd_inode->i_size>>9) - le64_to_cpu(sb->data_offset)) / 2;
         else
                 rdev->size = rdev->sb_offset;
@@ -1499,7 +1503,8 @@ static void export_rdev(mdk_rdev_t * rdev)
         free_disk_sb(rdev);
         list_del_init(&rdev->same_set);
 #ifndef MODULE
-        md_autodetect_dev(rdev->bdev->bd_dev);
+        if (test_bit(AutoDetected, &rdev->flags))
+                md_autodetect_dev(rdev->bdev->bd_dev);
 #endif
         unlock_rdev(rdev);
         kobject_put(&rdev->kobj);
@@ -1996,9 +2001,11 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len)
         char *e;
         unsigned long long size = simple_strtoull(buf, &e, 10);
         unsigned long long oldsize = rdev->size;
+        mddev_t *my_mddev = rdev->mddev;
+
         if (e==buf || (*e && *e != '\n'))
                 return -EINVAL;
-        if (rdev->mddev->pers)
+        if (my_mddev->pers)
                 return -EBUSY;
         rdev->size = size;
         if (size > oldsize && rdev->mddev->external) {
@@ -2011,7 +2018,7 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len)
                 int overlap = 0;
                 struct list_head *tmp, *tmp2;
 
-                mddev_unlock(rdev->mddev);
+                mddev_unlock(my_mddev);
                 for_each_mddev(mddev, tmp) {
                         mdk_rdev_t *rdev2;
 
@@ -2031,7 +2038,7 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len)
                                 break;
                         }
                 }
-                mddev_lock(rdev->mddev);
+                mddev_lock(my_mddev);
                 if (overlap) {
                         /* Someone else could have slipped in a size
                          * change here, but doing so is just silly.
@@ -2043,8 +2050,8 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len)
                         return -EBUSY;
                 }
         }
-        if (size < rdev->mddev->size || rdev->mddev->size == 0)
-                rdev->mddev->size = size;
+        if (size < my_mddev->size || my_mddev->size == 0)
+                my_mddev->size = size;
         return len;
 }
 
@@ -2065,10 +2072,21 @@ rdev_attr_show(struct kobject *kobj, struct attribute *attr, char *page)
 {
         struct rdev_sysfs_entry *entry = container_of(attr, struct rdev_sysfs_entry, attr);
         mdk_rdev_t *rdev = container_of(kobj, mdk_rdev_t, kobj);
+        mddev_t *mddev = rdev->mddev;
+        ssize_t rv;
 
         if (!entry->show)
                 return -EIO;
-        return entry->show(rdev, page);
+
+        rv = mddev ? mddev_lock(mddev) : -EBUSY;
+        if (!rv) {
+                if (rdev->mddev == NULL)
+                        rv = -EBUSY;
+                else
+                        rv = entry->show(rdev, page);
+                mddev_unlock(mddev);
+        }
+        return rv;
 }
 
 static ssize_t
@@ -2077,15 +2095,19 @@ rdev_attr_store(struct kobject *kobj, struct attribute *attr,
 {
         struct rdev_sysfs_entry *entry = container_of(attr, struct rdev_sysfs_entry, attr);
         mdk_rdev_t *rdev = container_of(kobj, mdk_rdev_t, kobj);
-        int rv;
+        ssize_t rv;
+        mddev_t *mddev = rdev->mddev;
 
         if (!entry->store)
                 return -EIO;
         if (!capable(CAP_SYS_ADMIN))
                 return -EACCES;
-        rv = mddev_lock(rdev->mddev);
+        rv = mddev ? mddev_lock(mddev): -EBUSY;
         if (!rv) {
-                rv = entry->store(rdev, page, length);
+                if (rdev->mddev == NULL)
+                        rv = -EBUSY;
+                else
+                        rv = entry->store(rdev, page, length);
                 mddev_unlock(rdev->mddev);
         }
         return rv;
@@ -5351,6 +5373,7 @@ void md_write_start(mddev_t *mddev, struct bio *bi)
                 mddev->ro = 0;
                 set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
                 md_wakeup_thread(mddev->thread);
+                md_wakeup_thread(mddev->sync_thread);
         }
         atomic_inc(&mddev->writes_pending);
         if (mddev->in_sync) {
@@ -6021,6 +6044,7 @@ static void autostart_arrays(int part)
                         MD_BUG();
                         continue;
                 }
+                set_bit(AutoDetected, &rdev->flags);
                 list_add(&rdev->same_set, &pending_raid_disks);
                 i_passed++;
         }
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 5c7fef091cec..ff61b309129a 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -592,6 +592,37 @@ static int raid1_congested(void *data, int bits)
 }
 
 
+static int flush_pending_writes(conf_t *conf)
+{
+        /* Any writes that have been queued but are awaiting
+         * bitmap updates get flushed here.
+         * We return 1 if any requests were actually submitted.
+         */
+        int rv = 0;
+
+        spin_lock_irq(&conf->device_lock);
+
+        if (conf->pending_bio_list.head) {
+                struct bio *bio;
+                bio = bio_list_get(&conf->pending_bio_list);
+                blk_remove_plug(conf->mddev->queue);
+                spin_unlock_irq(&conf->device_lock);
+                /* flush any pending bitmap writes to
+                 * disk before proceeding w/ I/O */
+                bitmap_unplug(conf->mddev->bitmap);
+
+                while (bio) { /* submit pending writes */
+                        struct bio *next = bio->bi_next;
+                        bio->bi_next = NULL;
+                        generic_make_request(bio);
+                        bio = next;
+                }
+                rv = 1;
+        } else
+                spin_unlock_irq(&conf->device_lock);
+        return rv;
+}
+
 /* Barriers....
  * Sometimes we need to suspend IO while we do something else,
  * either some resync/recovery, or reconfigure the array.
@@ -673,15 +704,23 @@ static void freeze_array(conf_t *conf)
         /* stop syncio and normal IO and wait for everything to
          * go quite.
          * We increment barrier and nr_waiting, and then
-         * wait until barrier+nr_pending match nr_queued+2
+         * wait until nr_pending match nr_queued+1
+         * This is called in the context of one normal IO request
+         * that has failed. Thus any sync request that might be pending
+         * will be blocked by nr_pending, and we need to wait for
+         * pending IO requests to complete or be queued for re-try.
+         * Thus the number queued (nr_queued) plus this request (1)
+         * must match the number of pending IOs (nr_pending) before
+         * we continue.
          */
         spin_lock_irq(&conf->resync_lock);
         conf->barrier++;
         conf->nr_waiting++;
         wait_event_lock_irq(conf->wait_barrier,
-                            conf->barrier+conf->nr_pending == conf->nr_queued+2,
+                            conf->nr_pending == conf->nr_queued+1,
                             conf->resync_lock,
-                            raid1_unplug(conf->mddev->queue));
+                            ({ flush_pending_writes(conf);
+                               raid1_unplug(conf->mddev->queue); }));
         spin_unlock_irq(&conf->resync_lock);
 }
 static void unfreeze_array(conf_t *conf)
@@ -907,6 +946,9 @@ static int make_request(struct request_queue *q, struct bio * bio)
         blk_plug_device(mddev->queue);
         spin_unlock_irqrestore(&conf->device_lock, flags);
 
+        /* In case raid1d snuck into freeze_array */
+        wake_up(&conf->wait_barrier);
+
         if (do_sync)
                 md_wakeup_thread(mddev->thread);
 #if 0
@@ -1473,28 +1515,14 @@ static void raid1d(mddev_t *mddev)
         
         for (;;) {
                 char b[BDEVNAME_SIZE];
-                spin_lock_irqsave(&conf->device_lock, flags);
-
-                if (conf->pending_bio_list.head) {
-                        bio = bio_list_get(&conf->pending_bio_list);
-                        blk_remove_plug(mddev->queue);
-                        spin_unlock_irqrestore(&conf->device_lock, flags);
-                        /* flush any pending bitmap writes to disk before proceeding w/ I/O */
-                        bitmap_unplug(mddev->bitmap);
 
-                        while (bio) { /* submit pending writes */
-                                struct bio *next = bio->bi_next;
-                                bio->bi_next = NULL;
-                                generic_make_request(bio);
-                                bio = next;
-                        }
-                        unplug = 1;
+                unplug += flush_pending_writes(conf);
 
-                        continue;
-                }
-
-                if (list_empty(head))
+                spin_lock_irqsave(&conf->device_lock, flags);
+                if (list_empty(head)) {
+                        spin_unlock_irqrestore(&conf->device_lock, flags);
                         break;
+                }
                 r1_bio = list_entry(head->prev, r1bio_t, retry_list);
                 list_del(head->prev);
                 conf->nr_queued--;
@@ -1590,7 +1618,6 @@ static void raid1d(mddev_t *mddev)
                         }
                 }
         }
-        spin_unlock_irqrestore(&conf->device_lock, flags);
         if (unplug)
                 unplug_slaves(mddev);
 }
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 017f58113c33..32389d2f18fc 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -537,7 +537,8 @@ static int read_balance(conf_t *conf, r10bio_t *r10_bio)
         current_distance = abs(r10_bio->devs[slot].addr -
                                conf->mirrors[disk].head_position);
 
-        /* Find the disk whose head is closest */
+        /* Find the disk whose head is closest,
+         * or - for far > 1 - find the closest to partition beginning */
 
         for (nslot = slot; nslot < conf->copies; nslot++) {
                 int ndisk = r10_bio->devs[nslot].devnum;
@@ -557,8 +558,13 @@ static int read_balance(conf_t *conf, r10bio_t *r10_bio)
                         slot = nslot;
                         break;
                 }
-                new_distance = abs(r10_bio->devs[nslot].addr -
-                                   conf->mirrors[ndisk].head_position);
+
+                /* for far > 1 always use the lowest address */
+                if (conf->far_copies > 1)
+                        new_distance = r10_bio->devs[nslot].addr;
+                else
+                        new_distance = abs(r10_bio->devs[nslot].addr -
+                                           conf->mirrors[ndisk].head_position);
                 if (new_distance < current_distance) {
                         current_distance = new_distance;
                         disk = ndisk;
@@ -629,7 +635,36 @@ static int raid10_congested(void *data, int bits)
         return ret;
 }
 
-
+static int flush_pending_writes(conf_t *conf)
+{
+        /* Any writes that have been queued but are awaiting
+         * bitmap updates get flushed here.
+         * We return 1 if any requests were actually submitted.
+         */
+        int rv = 0;
+
+        spin_lock_irq(&conf->device_lock);
+
+        if (conf->pending_bio_list.head) {
+                struct bio *bio;
+                bio = bio_list_get(&conf->pending_bio_list);
+                blk_remove_plug(conf->mddev->queue);
+                spin_unlock_irq(&conf->device_lock);
+                /* flush any pending bitmap writes to disk
+                 * before proceeding w/ I/O */
+                bitmap_unplug(conf->mddev->bitmap);
+
+                while (bio) { /* submit pending writes */
+                        struct bio *next = bio->bi_next;
+                        bio->bi_next = NULL;
+                        generic_make_request(bio);
+                        bio = next;
+                }
+                rv = 1;
+        } else
+                spin_unlock_irq(&conf->device_lock);
+        return rv;
+}
 /* Barriers....
  * Sometimes we need to suspend IO while we do something else,
  * either some resync/recovery, or reconfigure the array.
@@ -712,15 +747,23 @@ static void freeze_array(conf_t *conf)
         /* stop syncio and normal IO and wait for everything to
          * go quiet.
          * We increment barrier and nr_waiting, and then
-         * wait until barrier+nr_pending match nr_queued+2
+         * wait until nr_pending match nr_queued+1
+         * This is called in the context of one normal IO request
+         * that has failed. Thus any sync request that might be pending
+         * will be blocked by nr_pending, and we need to wait for
+         * pending IO requests to complete or be queued for re-try.
+         * Thus the number queued (nr_queued) plus this request (1)
+         * must match the number of pending IOs (nr_pending) before
+         * we continue.
          */
         spin_lock_irq(&conf->resync_lock);
         conf->barrier++;
         conf->nr_waiting++;
         wait_event_lock_irq(conf->wait_barrier,
-                            conf->barrier+conf->nr_pending == conf->nr_queued+2,
+                            conf->nr_pending == conf->nr_queued+1,
                             conf->resync_lock,
-                            raid10_unplug(conf->mddev->queue));
+                            ({ flush_pending_writes(conf);
+                               raid10_unplug(conf->mddev->queue); }));
         spin_unlock_irq(&conf->resync_lock);
 }
 
@@ -892,6 +935,9 @@ static int make_request(struct request_queue *q, struct bio * bio)
         blk_plug_device(mddev->queue);
         spin_unlock_irqrestore(&conf->device_lock, flags);
 
+        /* In case raid10d snuck in to freeze_array */
+        wake_up(&conf->wait_barrier);
+
         if (do_sync)
                 md_wakeup_thread(mddev->thread);
 
@@ -1464,28 +1510,14 @@ static void raid10d(mddev_t *mddev)
 
         for (;;) {
                 char b[BDEVNAME_SIZE];
-                spin_lock_irqsave(&conf->device_lock, flags);
 
-                if (conf->pending_bio_list.head) {
-                        bio = bio_list_get(&conf->pending_bio_list);
-                        blk_remove_plug(mddev->queue);
-                        spin_unlock_irqrestore(&conf->device_lock, flags);
-                        /* flush any pending bitmap writes to disk before proceeding w/ I/O */
-                        bitmap_unplug(mddev->bitmap);
-
-                        while (bio) { /* submit pending writes */
-                                struct bio *next = bio->bi_next;
-                                bio->bi_next = NULL;
-                                generic_make_request(bio);
-                                bio = next;
-                        }
-                        unplug = 1;
-
-                        continue;
-                }
+                unplug += flush_pending_writes(conf);
 
-                if (list_empty(head))
+                spin_lock_irqsave(&conf->device_lock, flags);
+                if (list_empty(head)) {
+                        spin_unlock_irqrestore(&conf->device_lock, flags);
                         break;
+                }
                 r10_bio = list_entry(head->prev, r10bio_t, retry_list);
                 list_del(head->prev);
                 conf->nr_queued--;
@@ -1548,7 +1580,6 @@ static void raid10d(mddev_t *mddev)
                         }
                 }
         }
-        spin_unlock_irqrestore(&conf->device_lock, flags);
         if (unplug)
                 unplug_slaves(mddev);
 }
@@ -1787,6 +1818,8 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
                                 if (j == conf->copies) {
                                         /* Cannot recover, so abort the recovery */
                                         put_buf(r10_bio);
+                                        if (rb2)
+                                                atomic_dec(&rb2->remaining);
                                         r10_bio = rb2;
                                         if (!test_and_set_bit(MD_RECOVERY_ERR, &mddev->recovery))
                                                 printk(KERN_INFO "raid10: %s: insufficient working devices for recovery.\n",
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 0c303c84b37b..6b6df8679585 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -632,8 +632,7 @@ mpt_deregister(u8 cb_idx)
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**
- *      mpt_event_register - Register protocol-specific event callback
- *      handler.
+ *      mpt_event_register - Register protocol-specific event callback handler.
  *      @cb_idx: previously registered (via mpt_register) callback handle
  *      @ev_cbfunc: callback function
  *
@@ -654,8 +653,7 @@ mpt_event_register(u8 cb_idx, MPT_EVHANDLER ev_cbfunc)
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**
- *      mpt_event_deregister - Deregister protocol-specific event callback
- *      handler.
+ *      mpt_event_deregister - Deregister protocol-specific event callback handler
  *      @cb_idx: previously registered callback handle
  *
  *      Each protocol-specific driver should call this routine
@@ -765,11 +763,13 @@ mpt_device_driver_deregister(u8 cb_idx)
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**
- *      mpt_get_msg_frame - Obtain a MPT request frame from the pool (of 1024)
- *      allocated per MPT adapter.
+ *      mpt_get_msg_frame - Obtain an MPT request frame from the pool
  *      @cb_idx: Handle of registered MPT protocol driver
  *      @ioc: Pointer to MPT adapter structure
  *
+ *      Obtain an MPT request frame from the pool (of 1024) that are
+ *      allocated per MPT adapter.
+ *
  *      Returns pointer to a MPT request frame or %NULL if none are available
  *      or IOC is not active.
  */
@@ -834,13 +834,12 @@ mpt_get_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc)
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**
- *      mpt_put_msg_frame - Send a protocol specific MPT request frame
- *      to a IOC.
+ *      mpt_put_msg_frame - Send a protocol-specific MPT request frame to an IOC
  *      @cb_idx: Handle of registered MPT protocol driver
  *      @ioc: Pointer to MPT adapter structure
  *      @mf: Pointer to MPT request frame
  *
- *      This routine posts a MPT request frame to the request post FIFO of a
+ *      This routine posts an MPT request frame to the request post FIFO of a
  *      specific MPT adapter.
  */
 void
@@ -868,13 +867,15 @@ mpt_put_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
 }
 
 /**
- *      mpt_put_msg_frame_hi_pri - Send a protocol specific MPT request frame
- *      to a IOC using hi priority request queue.
+ *      mpt_put_msg_frame_hi_pri - Send a hi-pri protocol-specific MPT request frame
  *      @cb_idx: Handle of registered MPT protocol driver
  *      @ioc: Pointer to MPT adapter structure
  *      @mf: Pointer to MPT request frame
  *
- *      This routine posts a MPT request frame to the request post FIFO of a
+ *      Send a protocol-specific MPT request frame to an IOC using
+ *      hi-priority request queue.
+ *
+ *      This routine posts an MPT request frame to the request post FIFO of a
  *      specific MPT adapter.
  **/
 void
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index af1de0ccee2f..0c252f60c4c1 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -1533,7 +1533,7 @@ mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
  *
  *      Remark: Currently invoked from a non-interrupt thread (_bh).
  *
- *      Remark: With old EH code, at most 1 SCSI TaskMgmt function per IOC
+ *      Note: With old EH code, at most 1 SCSI TaskMgmt function per IOC
  *      will be active.
  *
  *      Returns 0 for SUCCESS, or %FAILED.
@@ -2537,14 +2537,12 @@ mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR
 
 /**
  * mptscsih_get_scsi_lookup
- *
- * retrieves scmd entry from ScsiLookup[] array list
- *
  * @ioc: Pointer to MPT_ADAPTER structure
  * @i: index into the array
  *
- * Returns the scsi_cmd pointer
+ * retrieves scmd entry from ScsiLookup[] array list
  *
+ * Returns the scsi_cmd pointer
  **/
 static struct scsi_cmnd *
 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
@@ -2561,14 +2559,12 @@ mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
 
 /**
  * mptscsih_getclear_scsi_lookup
- *
- * retrieves and clears scmd entry from ScsiLookup[] array list
- *
  * @ioc: Pointer to MPT_ADAPTER structure
  * @i: index into the array
  *
- * Returns the scsi_cmd pointer
+ * retrieves and clears scmd entry from ScsiLookup[] array list
  *
+ * Returns the scsi_cmd pointer
  **/
 static struct scsi_cmnd *
 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index afd82966f9a0..13bac53db69a 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -48,31 +48,13 @@ struct sm501_devdata {
         unsigned int                     pdev_id;
         unsigned int                     irq;
         void __iomem                    *regs;
+        unsigned int                     rev;
 };
 
 #define MHZ (1000 * 1000)
 
 #ifdef DEBUG
-static const unsigned int misc_div[] = {
-        [0]             = 1,
-        [1]             = 2,
-        [2]             = 4,
-        [3]             = 8,
-        [4]             = 16,
-        [5]             = 32,
-        [6]             = 64,
-        [7]             = 128,
-        [8]             = 3,
-        [9]             = 6,
-        [10]            = 12,
-        [11]            = 24,
-        [12]            = 48,
-        [13]            = 96,
-        [14]            = 192,
-        [15]            = 384,
-};
-
-static const unsigned int px_div[] = {
+static const unsigned int div_tab[] = {
         [0]             = 1,
         [1]             = 2,
         [2]             = 4,
@@ -101,12 +83,12 @@ static const unsigned int px_div[] = {
 
 static unsigned long decode_div(unsigned long pll2, unsigned long val,
                                 unsigned int lshft, unsigned int selbit,
-                                unsigned long mask, const unsigned int *dtab)
+                                unsigned long mask)
 {
         if (val & selbit)
                 pll2 = 288 * MHZ;
 
-        return pll2 / dtab[(val >> lshft) & mask];
+        return pll2 / div_tab[(val >> lshft) & mask];
 }
 
 #define fmt_freq(x) ((x) / MHZ), ((x) % MHZ), (x)
@@ -141,10 +123,10 @@ static void sm501_dump_clk(struct sm501_devdata *sm)
         }
 
         sdclk0 = (misct & (1<<12)) ? pll2 : 288 * MHZ;
-        sdclk0 /= misc_div[((misct >> 8) & 0xf)];
+        sdclk0 /= div_tab[((misct >> 8) & 0xf)];
 
         sdclk1 = (misct & (1<<20)) ? pll2 : 288 * MHZ;
-        sdclk1 /= misc_div[((misct >> 16) & 0xf)];
+        sdclk1 /= div_tab[((misct >> 16) & 0xf)];
 
         dev_dbg(sm->dev, "MISCT=%08lx, PM0=%08lx, PM1=%08lx\n",
                 misct, pm0, pm1);
@@ -158,19 +140,19 @@ static void sm501_dump_clk(struct sm501_devdata *sm)
                  "P2 %ld.%ld MHz (%ld), V2 %ld.%ld (%ld), "
                  "M %ld.%ld (%ld), MX1 %ld.%ld (%ld)\n",
                  (pmc & 3 ) == 0 ? '*' : '-',
-                 fmt_freq(decode_div(pll2, pm0, 24, 1<<29, 31, px_div)),
-                 fmt_freq(decode_div(pll2, pm0, 16, 1<<20, 15, misc_div)),
-                 fmt_freq(decode_div(pll2, pm0, 8,  1<<12, 15, misc_div)),
-                 fmt_freq(decode_div(pll2, pm0, 0,  1<<4,  15, misc_div)));
+                 fmt_freq(decode_div(pll2, pm0, 24, 1<<29, 31)),
+                 fmt_freq(decode_div(pll2, pm0, 16, 1<<20, 15)),
+                 fmt_freq(decode_div(pll2, pm0, 8,  1<<12, 15)),
+                 fmt_freq(decode_div(pll2, pm0, 0,  1<<4,  15)));
 
         dev_dbg(sm->dev, "PM1[%c]: "
                 "P2 %ld.%ld MHz (%ld), V2 %ld.%ld (%ld), "
                 "M %ld.%ld (%ld), MX1 %ld.%ld (%ld)\n",
                 (pmc & 3 ) == 1 ? '*' : '-',
-                fmt_freq(decode_div(pll2, pm1, 24, 1<<29, 31, px_div)),
-                fmt_freq(decode_div(pll2, pm1, 16, 1<<20, 15, misc_div)),
-                fmt_freq(decode_div(pll2, pm1, 8,  1<<12, 15, misc_div)),
-                fmt_freq(decode_div(pll2, pm1, 0,  1<<4,  15, misc_div)));
+                fmt_freq(decode_div(pll2, pm1, 24, 1<<29, 31)),
+                fmt_freq(decode_div(pll2, pm1, 16, 1<<20, 15)),
+                fmt_freq(decode_div(pll2, pm1, 8,  1<<12, 15)),
+                fmt_freq(decode_div(pll2, pm1, 0,  1<<4,  15)));
 }
 
 static void sm501_dump_regs(struct sm501_devdata *sm)
@@ -436,46 +418,108 @@ struct sm501_clock {
         unsigned long mclk;
         int divider;
         int shift;
+        unsigned int m, n, k;
 };
 
+/* sm501_calc_clock
+ *
+ * Calculates the nearest discrete clock frequency that
+ * can be achieved with the specified input clock.
+ *   the maximum divisor is 3 or 5
+ */
+
+static int sm501_calc_clock(unsigned long freq,
+                            struct sm501_clock *clock,
+                            int max_div,
+                            unsigned long mclk,
+                            long *best_diff)
+{
+        int ret = 0;
+        int divider;
+        int shift;
+        long diff;
+
+        /* try dividers 1 and 3 for CRT and for panel,
+           try divider 5 for panel only.*/
+
+        for (divider = 1; divider <= max_div; divider += 2) {
+                /* try all 8 shift values.*/
+                for (shift = 0; shift < 8; shift++) {
+                        /* Calculate difference to requested clock */
+                        diff = sm501fb_round_div(mclk, divider << shift) - freq;
+                        if (diff < 0)
+                                diff = -diff;
+
+                        /* If it is less than the current, use it */
+                        if (diff < *best_diff) {
+                                *best_diff = diff;
+
+                                clock->mclk = mclk;
+                                clock->divider = divider;
+                                clock->shift = shift;
+                                ret = 1;
+                        }
+                }
+        }
+
+        return ret;
+}
+
+/* sm501_calc_pll
+ *
+ * Calculates the nearest discrete clock frequency that can be
+ * achieved using the programmable PLL.
+ *   the maximum divisor is 3 or 5
+ */
+
+static unsigned long sm501_calc_pll(unsigned long freq,
+                                        struct sm501_clock *clock,
+                                        int max_div)
+{
+        unsigned long mclk;
+        unsigned int m, n, k;
+        long best_diff = 999999999;
+
+        /*
+         * The SM502 datasheet doesn't specify the min/max values for M and N.
+         * N = 1 at least doesn't work in practice.
+         */
+        for (m = 2; m <= 255; m++) {
+                for (n = 2; n <= 127; n++) {
+                        for (k = 0; k <= 1; k++) {
+                                mclk = (24000000UL * m / n) >> k;
+
+                                if (sm501_calc_clock(freq, clock, max_div,
+                                                     mclk, &best_diff)) {
+                                        clock->m = m;
+                                        clock->n = n;
+                                        clock->k = k;
+                                }
+                        }
+                }
+        }
+
+        /* Return best clock. */
+        return clock->mclk / (clock->divider << clock->shift);
+}
+
 /* sm501_select_clock
  *
- * selects nearest discrete clock frequency the SM501 can achive
+ * Calculates the nearest discrete clock frequency that can be
+ * achieved using the 288MHz and 336MHz PLLs.
  *   the maximum divisor is 3 or 5
  */
+
 static unsigned long sm501_select_clock(unsigned long freq,
                                         struct sm501_clock *clock,
                                         int max_div)
 {
         unsigned long mclk;
-        int divider;
-        int shift;
-        long diff;
         long best_diff = 999999999;
 
         /* Try 288MHz and 336MHz clocks. */
         for (mclk = 288000000; mclk <= 336000000; mclk += 48000000) {
-                /* try dividers 1 and 3 for CRT and for panel,
-                   try divider 5 for panel only.*/
-
-                for (divider = 1; divider <= max_div; divider += 2) {
-                        /* try all 8 shift values.*/
-                        for (shift = 0; shift < 8; shift++) {
-                                /* Calculate difference to requested clock */
-                                diff = sm501fb_round_div(mclk, divider << shift) - freq;
-                                if (diff < 0)
-                                        diff = -diff;
-
-                                /* If it is less than the current, use it */
-                                if (diff < best_diff) {
-                                        best_diff = diff;
-
-                                        clock->mclk = mclk;
-                                        clock->divider = divider;
-                                        clock->shift = shift;
-                                }
-                        }
-                }
+                sm501_calc_clock(freq, clock, max_div, mclk, &best_diff);
         }
 
         /* Return best clock. */
@@ -497,6 +541,7 @@ unsigned long sm501_set_clock(struct device *dev,
         unsigned long gate = readl(sm->regs + SM501_CURRENT_GATE);
         unsigned long clock = readl(sm->regs + SM501_CURRENT_CLOCK);
         unsigned char reg;
+        unsigned int pll_reg = 0;
         unsigned long sm501_freq; /* the actual frequency acheived */
 
         struct sm501_clock to;
@@ -511,14 +556,28 @@ unsigned long sm501_set_clock(struct device *dev,
                  * requested frequency the value must be multiplied by
                  * 2. This clock also has an additional pre divisor */
 
-                sm501_freq = (sm501_select_clock(2 * req_freq, &to, 5) / 2);
-                reg=to.shift & 0x07;/* bottom 3 bits are shift */
-                if (to.divider == 3)
-                        reg |= 0x08; /* /3 divider required */
-                else if (to.divider == 5)
-                        reg |= 0x10; /* /5 divider required */
-                if (to.mclk != 288000000)
-                        reg |= 0x20; /* which mclk pll is source */
+                if (sm->rev >= 0xC0) {
+                        /* SM502 -> use the programmable PLL */
+                        sm501_freq = (sm501_calc_pll(2 * req_freq,
+                                                     &to, 5) / 2);
+                        reg = to.shift & 0x07;/* bottom 3 bits are shift */
+                        if (to.divider == 3)
+                                reg |= 0x08; /* /3 divider required */
+                        else if (to.divider == 5)
+                                reg |= 0x10; /* /5 divider required */
+                        reg |= 0x40; /* select the programmable PLL */
+                        pll_reg = 0x20000 | (to.k << 15) | (to.n << 8) | to.m;
+                } else {
+                        sm501_freq = (sm501_select_clock(2 * req_freq,
+                                                         &to, 5) / 2);
+                        reg = to.shift & 0x07;/* bottom 3 bits are shift */
+                        if (to.divider == 3)
+                                reg |= 0x08; /* /3 divider required */
+                        else if (to.divider == 5)
+                                reg |= 0x10; /* /5 divider required */
+                        if (to.mclk != 288000000)
+                                reg |= 0x20; /* which mclk pll is source */
+                }
                 break;
 
         case SM501_CLOCK_V2XCLK:
@@ -579,6 +638,10 @@ unsigned long sm501_set_clock(struct device *dev,
         }
 
         writel(mode, sm->regs + SM501_POWER_MODE_CONTROL);
+
+        if (pll_reg)
+                writel(pll_reg, sm->regs + SM501_PROGRAMMABLE_PLL_CONTROL);
+
         sm501_sync_regs(sm);
 
         dev_info(sm->dev, "gate %08lx, clock %08lx, mode %08lx\n",
@@ -599,15 +662,24 @@ EXPORT_SYMBOL_GPL(sm501_set_clock);
  * finds the closest available frequency for a given clock
 */
 
-unsigned long sm501_find_clock(int clksrc,
+unsigned long sm501_find_clock(struct device *dev,
+                               int clksrc,
                                unsigned long req_freq)
 {
+        struct sm501_devdata *sm = dev_get_drvdata(dev);
         unsigned long sm501_freq; /* the frequency achiveable by the 501 */
         struct sm501_clock to;
 
         switch (clksrc) {
         case SM501_CLOCK_P2XCLK:
-                sm501_freq = (sm501_select_clock(2 * req_freq, &to, 5) / 2);
+                if (sm->rev >= 0xC0) {
+                        /* SM502 -> use the programmable PLL */
+                        sm501_freq = (sm501_calc_pll(2 * req_freq,
+                                                     &to, 5) / 2);
+                } else {
+                        sm501_freq = (sm501_select_clock(2 * req_freq,
+                                                         &to, 5) / 2);
+                }
                 break;
 
         case SM501_CLOCK_V2XCLK:
@@ -914,6 +986,8 @@ static int sm501_init_dev(struct sm501_devdata *sm)
         dev_info(sm->dev, "SM501 At %p: Version %08lx, %ld Mb, IRQ %d\n",
                  sm->regs, devid, (unsigned long)mem_avail >> 20, sm->irq);
 
+        sm->rev = devid & SM501_DEVICEID_REVMASK;
+
         sm501_dump_gate(sm);
 
         ret = device_create_file(sm->dev, &dev_attr_dbg_regs);
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index bb269d0c677e..6cb781262f94 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -1078,7 +1078,8 @@ static int hotkey_get_tablet_mode(int *status)
         if (!acpi_evalf(hkey_handle, &s, "MHKG", "d"))
                 return -EIO;
 
-        return ((s & TP_HOTKEY_TABLET_MASK) != 0);
+        *status = ((s & TP_HOTKEY_TABLET_MASK) != 0);
+        return 0;
 }
 
 /*
diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index 0fbf1bbbaee9..d7a3ea88eddb 100644
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -1253,7 +1253,7 @@ static void __inline__ fec_request_intrs(struct net_device *dev)
 
         /* Setup interrupt handlers. */
         for (idp = id; idp->name; idp++) {
-                if (request_irq(idp->irq, idp->handler, 0, idp->name, dev) != 0)
+                if (request_irq(idp->irq, idp->handler, IRQF_DISABLED, idp->name, dev) != 0)
                         printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, idp->irq);
         }
 
@@ -1382,7 +1382,7 @@ static void __inline__ fec_request_intrs(struct net_device *dev)
 
         /* Setup interrupt handlers. */
         for (idp = id; idp->name; idp++) {
-                if (request_irq(b+idp->irq, fec_enet_interrupt, 0, idp->name, dev) != 0)
+                if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name, dev) != 0)
                         printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, b+idp->irq);
         }
 
@@ -1553,7 +1553,7 @@ static void __inline__ fec_request_intrs(struct net_device *dev)
 
         /* Setup interrupt handlers. */
         for (idp = id; idp->name; idp++) {
-                if (request_irq(b+idp->irq,fec_enet_interrupt,0,idp->name,dev)!=0)
+                if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name,dev) != 0)
                         printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, b+idp->irq);
         }
 
@@ -1680,7 +1680,7 @@ static void __inline__ fec_request_intrs(struct net_device *dev)
 
         /* Setup interrupt handlers. */
         for (idp = id; idp->name; idp++) {
-                if (request_irq(b+idp->irq,fec_enet_interrupt,0,idp->name,dev)!=0)
+                if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name,dev) != 0)
                         printk("FEC: Could not allocate %s IRQ(%d)!\n",
                                 idp->name, b+idp->irq);
         }
diff --git a/drivers/parisc/Kconfig b/drivers/parisc/Kconfig
index 1d3b84b4af3f..553a9905299a 100644
--- a/drivers/parisc/Kconfig
+++ b/drivers/parisc/Kconfig
@@ -103,6 +103,11 @@ config IOMMU_SBA
         depends on PCI_LBA
         default PCI_LBA
 
+config IOMMU_HELPER
+        bool
+        depends on IOMMU_SBA || IOMMU_CCIO
+        default y
+
 #config PCI_EPIC
 #       bool "EPIC/SAGA PCI support"
 #       depends on PCI
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index d08b284de196..60d338cd8009 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -43,6 +43,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/scatterlist.h>
+#include <linux/iommu-helper.h>
 
 #include <asm/byteorder.h>
 #include <asm/cache.h>          /* for L1_CACHE_BYTES */
@@ -302,13 +303,17 @@ static int ioc_count;
 */
 #define CCIO_SEARCH_LOOP(ioc, res_idx, mask, size)  \
        for(; res_ptr < res_end; ++res_ptr) { \
-               if(0 == (*res_ptr & mask)) { \
-                       *res_ptr |= mask; \
-                       res_idx = (unsigned int)((unsigned long)res_ptr - (unsigned long)ioc->res_map); \
-                       ioc->res_hint = res_idx + (size >> 3); \
-                       goto resource_found; \
-               } \
-       }
+                int ret;\
+                unsigned int idx;\
+                idx = (unsigned int)((unsigned long)res_ptr - (unsigned long)ioc->res_map); \
+                ret = iommu_is_span_boundary(idx << 3, pages_needed, 0, boundary_size);\
+                if ((0 == (*res_ptr & mask)) && !ret) { \
+                        *res_ptr |= mask; \
+                        res_idx = idx;\
+                        ioc->res_hint = res_idx + (size >> 3); \
+                        goto resource_found; \
+                } \
+        }
 
 #define CCIO_FIND_FREE_MAPPING(ioa, res_idx, mask, size) \
        u##size *res_ptr = (u##size *)&((ioc)->res_map[ioa->res_hint & ~((size >> 3) - 1)]); \
@@ -341,10 +346,11 @@ static int ioc_count;
  * of available pages for the requested size.
  */
 static int
-ccio_alloc_range(struct ioc *ioc, size_t size)
+ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 {
         unsigned int pages_needed = size >> IOVP_SHIFT;
         unsigned int res_idx;
+        unsigned long boundary_size;
 #ifdef CCIO_SEARCH_TIME
         unsigned long cr_start = mfctl(16);
 #endif
@@ -360,6 +366,9 @@ ccio_alloc_range(struct ioc *ioc, size_t size)
         ** ggg sacrifices another 710 to the computer gods.
         */
 
+        boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
+        boundary_size >>= IOVP_SHIFT;
+
         if (pages_needed <= 8) {
                 /*
                  * LAN traffic will not thrash the TLB IFF the same NIC
@@ -760,7 +769,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
         ioc->msingle_pages += size >> IOVP_SHIFT;
 #endif
 
-        idx = ccio_alloc_range(ioc, size);
+        idx = ccio_alloc_range(ioc, dev, size);
         iovp = (dma_addr_t)MKIOVP(idx);
 
         pdir_start = &(ioc->pdir_base[idx]);
diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
index 97ba8286c596..a9c46cc2db37 100644
--- a/drivers/parisc/iommu-helpers.h
+++ b/drivers/parisc/iommu-helpers.h
@@ -96,8 +96,8 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents,
 
 static inline unsigned int
 iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
-                      struct scatterlist *startsg, int nents,
-                      int (*iommu_alloc_range)(struct ioc *, size_t))
+                struct scatterlist *startsg, int nents,
+                int (*iommu_alloc_range)(struct ioc *, struct device *, size_t))
 {
         struct scatterlist *contig_sg;     /* contig chunk head */
         unsigned long dma_offset, dma_len; /* start/len of DMA stream */
@@ -166,7 +166,7 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
                 dma_len = ALIGN(dma_len + dma_offset, IOVP_SIZE);
                 sg_dma_address(contig_sg) =
                         PIDE_FLAG 
-                        | (iommu_alloc_range(ioc, dma_len) << IOVP_SHIFT)
+                        | (iommu_alloc_range(ioc, dev, dma_len) << IOVP_SHIFT)
                         | dma_offset;
                 n_mappings++;
         }
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index d06627c3f353..e834127a8505 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -29,6 +29,7 @@
 #include <linux/string.h>
 #include <linux/pci.h>
 #include <linux/scatterlist.h>
+#include <linux/iommu-helper.h>
 
 #include <asm/byteorder.h>
 #include <asm/io.h>
@@ -313,6 +314,12 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
 #define RESMAP_MASK(n)    (~0UL << (BITS_PER_LONG - (n)))
 #define RESMAP_IDX_MASK   (sizeof(unsigned long) - 1)
 
+unsigned long ptr_to_pide(struct ioc *ioc, unsigned long *res_ptr,
+                          unsigned int bitshiftcnt)
+{
+        return (((unsigned long)res_ptr - (unsigned long)ioc->res_map) << 3)
+                + bitshiftcnt;
+}
 
 /**
  * sba_search_bitmap - find free space in IO PDIR resource bitmap
@@ -324,19 +331,36 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
  * Cool perf optimization: search for log2(size) bits at a time.
  */
 static SBA_INLINE unsigned long
-sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted)
+sba_search_bitmap(struct ioc *ioc, struct device *dev,
+                  unsigned long bits_wanted)
 {
         unsigned long *res_ptr = ioc->res_hint;
         unsigned long *res_end = (unsigned long *) &(ioc->res_map[ioc->res_size]);
-        unsigned long pide = ~0UL;
+        unsigned long pide = ~0UL, tpide;
+        unsigned long boundary_size;
+        unsigned long shift;
+        int ret;
+
+        boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
+        boundary_size >>= IOVP_SHIFT;
+
+#if defined(ZX1_SUPPORT)
+        BUG_ON(ioc->ibase & ~IOVP_MASK);
+        shift = ioc->ibase >> IOVP_SHIFT;
+#else
+        shift = 0;
+#endif
 
         if (bits_wanted > (BITS_PER_LONG/2)) {
                 /* Search word at a time - no mask needed */
                 for(; res_ptr < res_end; ++res_ptr) {
-                        if (*res_ptr == 0) {
+                        tpide = ptr_to_pide(ioc, res_ptr, 0);
+                        ret = iommu_is_span_boundary(tpide, bits_wanted,
+                                                     shift,
+                                                     boundary_size);
+                        if ((*res_ptr == 0) && !ret) {
                                 *res_ptr = RESMAP_MASK(bits_wanted);
-                                pide = ((unsigned long)res_ptr - (unsigned long)ioc->res_map);
-                                pide <<= 3;     /* convert to bit address */
+                                pide = tpide;
                                 break;
                         }
                 }
@@ -365,11 +389,13 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted)
                 { 
                         DBG_RES("    %p %lx %lx\n", res_ptr, mask, *res_ptr);
                         WARN_ON(mask == 0);
-                        if(((*res_ptr) & mask) == 0) {
+                        tpide = ptr_to_pide(ioc, res_ptr, bitshiftcnt);
+                        ret = iommu_is_span_boundary(tpide, bits_wanted,
+                                                     shift,
+                                                     boundary_size);
+                        if ((((*res_ptr) & mask) == 0) && !ret) {
                                 *res_ptr |= mask;     /* mark resources busy! */
-                                pide = ((unsigned long)res_ptr - (unsigned long)ioc->res_map);
-                                pide <<= 3;     /* convert to bit address */
-                                pide += bitshiftcnt;
+                                pide = tpide;
                                 break;
                         }
                         mask >>= o;
@@ -404,7 +430,7 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted)
  * resource bit map.
  */
 static int
-sba_alloc_range(struct ioc *ioc, size_t size)
+sba_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 {
         unsigned int pages_needed = size >> IOVP_SHIFT;
 #ifdef SBA_COLLECT_STATS
@@ -412,9 +438,9 @@ sba_alloc_range(struct ioc *ioc, size_t size)
 #endif
         unsigned long pide;
 
-        pide = sba_search_bitmap(ioc, pages_needed);
+        pide = sba_search_bitmap(ioc, dev, pages_needed);
         if (pide >= (ioc->res_size << 3)) {
-                pide = sba_search_bitmap(ioc, pages_needed);
+                pide = sba_search_bitmap(ioc, dev, pages_needed);
                 if (pide >= (ioc->res_size << 3))
                         panic("%s: I/O MMU @ %p is out of mapping resources\n",
                               __FILE__, ioc->ioc_hpa);
@@ -710,7 +736,7 @@ sba_map_single(struct device *dev, void *addr, size_t size,
         ioc->msingle_calls++;
         ioc->msingle_pages += size >> IOVP_SHIFT;
 #endif
-        pide = sba_alloc_range(ioc, size);
+        pide = sba_alloc_range(ioc, dev, size);
         iovp = (dma_addr_t) pide << IOVP_SHIFT;
 
         DBG_RUN("%s() 0x%p -> 0x%lx\n",
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index ef5a6a245f5f..6a9403d79e0c 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -145,13 +145,15 @@ void pci_bus_add_devices(struct pci_bus *bus)
                         child_bus = dev->subordinate;
                         child_bus->dev.parent = child_bus->bridge;
                         retval = device_register(&child_bus->dev);
-                        if (!retval)
+                        if (retval)
+                                dev_err(&dev->dev, "Error registering pci_bus,"
+                                        " continuing...\n");
+                        else
                                 retval = device_create_file(&child_bus->dev,
                                                         &dev_attr_cpuaffinity);
                         if (retval)
-                                dev_err(&dev->dev, "Error registering pci_bus"
-                                        " device bridge symlink,"
-                                        " continuing...\n");
+                                dev_err(&dev->dev, "Error creating cpuaffinity"
+                                        " file, continuing...\n");
                 }
         }
 }
diff --git a/drivers/pci/hotplug-pci.c b/drivers/pci/hotplug-pci.c
index a590ef682153..4d4a64478404 100644
--- a/drivers/pci/hotplug-pci.c
+++ b/drivers/pci/hotplug-pci.c
@@ -4,7 +4,7 @@
 #include "pci.h"
 
 
-unsigned int pci_do_scan_bus(struct pci_bus *bus)
+unsigned int __devinit pci_do_scan_bus(struct pci_bus *bus)
 {
         unsigned int max;
 
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index cf22f9e01e00..5e50008d1181 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -1085,7 +1085,7 @@ static int acpiphp_bus_trim(acpi_handle handle)
  * This function should be called per *physical slot*,
  * not per each slot object in ACPI namespace.
  */
-static int enable_device(struct acpiphp_slot *slot)
+static int __ref enable_device(struct acpiphp_slot *slot)
 {
         struct pci_dev *dev;
         struct pci_bus *bus = slot->bridge->pci_bus;
diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c
index 5e9be44817cb..b3515fc4cd38 100644
--- a/drivers/pci/hotplug/cpci_hotplug_pci.c
+++ b/drivers/pci/hotplug/cpci_hotplug_pci.c
@@ -250,7 +250,7 @@ int cpci_led_off(struct slot* slot)
  * Device configuration functions
  */
 
-int cpci_configure_slot(struct slot* slot)
+int __ref cpci_configure_slot(struct slot *slot)
 {
         struct pci_bus *parent;
         int fn;
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 6eba9b2cfb90..698975a6a21c 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -711,7 +711,8 @@ static int hpc_power_off_slot(struct slot * slot)
         retval = pcie_write_cmd(slot, slot_cmd, cmd_mask);
         if (retval) {
                 err("%s: Write command failed!\n", __FUNCTION__);
-                return -1;
+                retval = -1;
+                goto out;
         }
         dbg("%s: SLOTCTRL %x write cmd %x\n",
             __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd);
@@ -722,7 +723,7 @@ static int hpc_power_off_slot(struct slot * slot)
          * removed from the slot/adapter.
          */
         msleep(1000);
-
+ out:
         if (changed)
                 pcie_unmask_bad_dllp(ctrl);
 
diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c
index dd50713966d1..9372a840b63d 100644
--- a/drivers/pci/hotplug/pciehp_pci.c
+++ b/drivers/pci/hotplug/pciehp_pci.c
@@ -167,7 +167,7 @@ static void program_fw_provided_values(struct pci_dev *dev)
         }
 }
 
-static int pciehp_add_bridge(struct pci_dev *dev)
+static int __ref pciehp_add_bridge(struct pci_dev *dev)
 {
         struct pci_bus *parent = dev->bus;
         int pass, busnr, start = parent->secondary;
diff --git a/drivers/pci/hotplug/shpchp_pci.c b/drivers/pci/hotplug/shpchp_pci.c
index 0a6b25ef194c..a69a21520895 100644
--- a/drivers/pci/hotplug/shpchp_pci.c
+++ b/drivers/pci/hotplug/shpchp_pci.c
@@ -96,7 +96,7 @@ static void program_fw_provided_values(struct pci_dev *dev)
         }
 }
 
-int shpchp_configure_device(struct slot *p_slot)
+int __ref shpchp_configure_device(struct slot *p_slot)
 {
         struct pci_dev *dev;
         struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 4d23b9fb551b..2db2e4bb0d1e 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -286,7 +286,7 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
         }
 }
 
-void pci_read_bridge_bases(struct pci_bus *child)
+void __devinit pci_read_bridge_bases(struct pci_bus *child)
 {
         struct pci_dev *dev = child->self;
         u8 io_base_lo, io_limit_lo;
@@ -472,7 +472,7 @@ static void pci_fixup_parent_subordinate_busnr(struct pci_bus *child, int max)
  * them, we proceed to assigning numbers to the remaining buses in
  * order to avoid overlaps between old and new bus numbers.
  */
-int pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass)
+int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass)
 {
         struct pci_bus *child;
         int is_cardbus = (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS);
@@ -1008,7 +1008,7 @@ int pci_scan_slot(struct pci_bus *bus, int devfn)
         return nr;
 }
 
-unsigned int pci_scan_child_bus(struct pci_bus *bus)
+unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus)
 {
         unsigned int devfn, pass, max = bus->secondary;
         struct pci_dev *dev;
@@ -1116,7 +1116,7 @@ err_out:
         return NULL;
 }
 
-struct pci_bus *pci_scan_bus_parented(struct device *parent,
+struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent,
                 int bus, struct pci_ops *ops, void *sysdata)
 {
         struct pci_bus *b;
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index bbad4a9f264f..e9a333d98552 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1652,9 +1652,8 @@ static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
                         pci_write_config_byte(dev, 0x75, 0x1);
                         pci_write_config_byte(dev, 0x77, 0x0);
 
-                        printk(KERN_INFO
-                                "PCI: VIA CX700 PCI parking/caching fixup on %s\n",
-                                pci_name(dev));
+                        dev_info(&dev->dev,
+                                "Disabling VIA CX700 PCI parking/caching\n");
                 }
         }
 }
@@ -1726,32 +1725,6 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2
                         quirk_msi_ht_cap);
 
 
-/*
- *  Force enable MSI mapping capability on HT bridges
- */
-static void __devinit quirk_msi_ht_cap_enable(struct pci_dev *dev)
-{
-        int pos, ttl = 48;
-
-        pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
-        while (pos && ttl--) {
-                u8 flags;
-
-                if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, &flags) == 0) {
-                        printk(KERN_INFO "PCI: Enabling HT MSI Mapping on %s\n",
-                               pci_name(dev));
-
-                        pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
-                                              flags | HT_MSI_FLAGS_ENABLE);
-                }
-                pos = pci_find_next_ht_capability(dev, pos,
-                                                  HT_CAPTYPE_MSI_MAPPING);
-        }
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
-                         PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
-                         quirk_msi_ht_cap_enable);
-
 /* The nVidia CK804 chipset may have 2 HT MSI mappings.
  * MSI are supported if the MSI capability set in any of these mappings.
  */
@@ -1778,9 +1751,8 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
                         quirk_nvidia_ck804_msi_ht_cap);
 
-/*
- *  Force enable MSI mapping capability on HT bridges  */
-static inline void ht_enable_msi_mapping(struct pci_dev *dev)
+/* Force enable MSI mapping capability on HT bridges */
+static void __devinit ht_enable_msi_mapping(struct pci_dev *dev)
 {
         int pos, ttl = 48;
 
@@ -1799,6 +1771,9 @@ static inline void ht_enable_msi_mapping(struct pci_dev *dev)
                                                   HT_CAPTYPE_MSI_MAPPING);
         }
 }
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
+                         PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
+                         ht_enable_msi_mapping);
 
 static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
 {
@@ -1830,7 +1805,7 @@ static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
 
                 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
                                          &flags) == 0) {
-                        dev_info(&dev->dev, "Quirk disabling HT MSI mapping");
+                        dev_info(&dev->dev, "Disabling HT MSI mapping");
                         pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
                                               flags & ~HT_MSI_FLAGS_ENABLE);
                 }
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c
index a98b2470b9ea..bd5c0e031398 100644
--- a/drivers/pci/rom.c
+++ b/drivers/pci/rom.c
@@ -242,8 +242,7 @@ void pci_remove_rom(struct pci_dev *pdev)
 #endif  /*  0  */
 
 /**
- * pci_cleanup_rom - internal routine for freeing the ROM copy created
- * by pci_map_rom_copy called from remove.c
+ * pci_cleanup_rom - free the ROM copy created by pci_map_rom_copy
  * @pdev: pointer to pci device struct
  *
  * Free the copied ROM if we allocated one.
diff --git a/drivers/rapidio/rio-driver.c b/drivers/rapidio/rio-driver.c
index 5480119ff9d3..3ce9f3defc12 100644
--- a/drivers/rapidio/rio-driver.c
+++ b/drivers/rapidio/rio-driver.c
@@ -78,8 +78,7 @@ void rio_dev_put(struct rio_dev *rdev)
 }
 
 /**
- *  rio_device_probe - Tell if a RIO device structure has a matching RIO
- *                     device id structure
+ *  rio_device_probe - Tell if a RIO device structure has a matching RIO device id structure
  *  @id: the RIO device id structure to match against
  *  @dev: the RIO device structure to match against
  *
@@ -137,7 +136,7 @@ static int rio_device_remove(struct device *dev)
  *  rio_register_driver - register a new RIO driver
  *  @rdrv: the RIO driver structure to register
  *
- *  Adds a &struct rio_driver to the list of registered drivers
+ *  Adds a &struct rio_driver to the list of registered drivers.
  *  Returns a negative value on error, otherwise 0. If no error
  *  occurred, the driver remains registered even if no device
  *  was claimed during registration.
@@ -167,8 +166,7 @@ void rio_unregister_driver(struct rio_driver *rdrv)
 }
 
 /**
- *  rio_match_bus - Tell if a RIO device structure has a matching RIO
- *                  driver device id structure
+ *  rio_match_bus - Tell if a RIO device structure has a matching RIO driver device id structure
  *  @dev: the standard device structure to match against
  *  @drv: the standard driver structure containing the ids to match against
  *
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 6402d699072b..82f5ad9c3af4 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -250,6 +250,15 @@ config RTC_DRV_TWL92330
           platforms.  The support is integrated with the rest of
           the Menelaus driver; it's not separate module.
 
+config RTC_DRV_S35390A
+        tristate "Seiko Instruments S-35390A"
+        help
+          If you say yes here you will get support for the Seiko
+          Instruments S-35390A.
+
+          This driver can also be built as a module. If so the module
+          will be called rtc-s35390a.
+
 endif # I2C
 
 comment "SPI RTC drivers"
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index ec703f34ab86..872f1218ff9f 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -45,6 +45,7 @@ obj-$(CONFIG_RTC_DRV_R9701)	+= rtc-r9701.o
 obj-$(CONFIG_RTC_DRV_RS5C313)   += rtc-rs5c313.o
 obj-$(CONFIG_RTC_DRV_RS5C348)   += rtc-rs5c348.o
 obj-$(CONFIG_RTC_DRV_RS5C372)   += rtc-rs5c372.o
+obj-$(CONFIG_RTC_DRV_S35390A)   += rtc-s35390a.o
 obj-$(CONFIG_RTC_DRV_S3C)       += rtc-s3c.o
 obj-$(CONFIG_RTC_DRV_SA1100)    += rtc-sa1100.o
 obj-$(CONFIG_RTC_DRV_SH)        += rtc-sh.o
diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c
new file mode 100644
index 000000000000..e8abc90c32c5
--- /dev/null
+++ b/drivers/rtc/rtc-s35390a.c
@@ -0,0 +1,316 @@
+/*
+ * Seiko Instruments S-35390A RTC Driver
+ *
+ * Copyright (c) 2007 Byron Bradley
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/rtc.h>
+#include <linux/i2c.h>
+#include <linux/bitrev.h>
+#include <linux/bcd.h>
+#include <linux/slab.h>
+
+#define S35390A_CMD_STATUS1     0
+#define S35390A_CMD_STATUS2     1
+#define S35390A_CMD_TIME1       2
+
+#define S35390A_BYTE_YEAR       0
+#define S35390A_BYTE_MONTH      1
+#define S35390A_BYTE_DAY        2
+#define S35390A_BYTE_WDAY       3
+#define S35390A_BYTE_HOURS      4
+#define S35390A_BYTE_MINS       5
+#define S35390A_BYTE_SECS       6
+
+#define S35390A_FLAG_POC        0x01
+#define S35390A_FLAG_BLD        0x02
+#define S35390A_FLAG_24H        0x40
+#define S35390A_FLAG_RESET      0x80
+#define S35390A_FLAG_TEST       0x01
+
+struct s35390a {
+        struct i2c_client *client[8];
+        struct rtc_device *rtc;
+        int twentyfourhour;
+};
+
+static int s35390a_set_reg(struct s35390a *s35390a, int reg, char *buf, int len)
+{
+        struct i2c_client *client = s35390a->client[reg];
+        struct i2c_msg msg[] = {
+                { client->addr, 0, len, buf },
+        };
+
+        if ((i2c_transfer(client->adapter, msg, 1)) != 1)
+                return -EIO;
+
+        return 0;
+}
+
+static int s35390a_get_reg(struct s35390a *s35390a, int reg, char *buf, int len)
+{
+        struct i2c_client *client = s35390a->client[reg];
+        struct i2c_msg msg[] = {
+                { client->addr, I2C_M_RD, len, buf },
+        };
+
+        if ((i2c_transfer(client->adapter, msg, 1)) != 1)
+                return -EIO;
+
+        return 0;
+}
+
+static int s35390a_reset(struct s35390a *s35390a)
+{
+        char buf[1];
+
+        if (s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf)) < 0)
+                return -EIO;
+
+        if (!(buf[0] & (S35390A_FLAG_POC | S35390A_FLAG_BLD)))
+                return 0;
+
+        buf[0] |= (S35390A_FLAG_RESET | S35390A_FLAG_24H);
+        buf[0] &= 0xf0;
+        return s35390a_set_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf));
+}
+
+static int s35390a_disable_test_mode(struct s35390a *s35390a)
+{
+        char buf[1];
+
+        if (s35390a_get_reg(s35390a, S35390A_CMD_STATUS2, buf, sizeof(buf)) < 0)
+                return -EIO;
+
+        if (!(buf[0] & S35390A_FLAG_TEST))
+                return 0;
+
+        buf[0] &= ~S35390A_FLAG_TEST;
+        return s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, buf, sizeof(buf));
+}
+
+static char s35390a_hr2reg(struct s35390a *s35390a, int hour)
+{
+        if (s35390a->twentyfourhour)
+                return BIN2BCD(hour);
+
+        if (hour < 12)
+                return BIN2BCD(hour);
+
+        return 0x40 | BIN2BCD(hour - 12);
+}
+
+static int s35390a_reg2hr(struct s35390a *s35390a, char reg)
+{
+        unsigned hour;
+
+        if (s35390a->twentyfourhour)
+                return BCD2BIN(reg & 0x3f);
+
+        hour = BCD2BIN(reg & 0x3f);
+        if (reg & 0x40)
+                hour += 12;
+
+        return hour;
+}
+
+static int s35390a_set_datetime(struct i2c_client *client, struct rtc_time *tm)
+{
+        struct s35390a  *s35390a = i2c_get_clientdata(client);
+        int i, err;
+        char buf[7];
+
+        dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d mday=%d, "
+                "mon=%d, year=%d, wday=%d\n", __func__, tm->tm_sec,
+                tm->tm_min, tm->tm_hour, tm->tm_mday, tm->tm_mon, tm->tm_year,
+                tm->tm_wday);
+
+        buf[S35390A_BYTE_YEAR] = BIN2BCD(tm->tm_year - 100);
+        buf[S35390A_BYTE_MONTH] = BIN2BCD(tm->tm_mon + 1);
+        buf[S35390A_BYTE_DAY] = BIN2BCD(tm->tm_mday);
+        buf[S35390A_BYTE_WDAY] = BIN2BCD(tm->tm_wday);
+        buf[S35390A_BYTE_HOURS] = s35390a_hr2reg(s35390a, tm->tm_hour);
+        buf[S35390A_BYTE_MINS] = BIN2BCD(tm->tm_min);
+        buf[S35390A_BYTE_SECS] = BIN2BCD(tm->tm_sec);
+
+        /* This chip expects the bits of each byte to be in reverse order */
+        for (i = 0; i < 7; ++i)
+                buf[i] = bitrev8(buf[i]);
+
+        err = s35390a_set_reg(s35390a, S35390A_CMD_TIME1, buf, sizeof(buf));
+
+        return err;
+}
+
+static int s35390a_get_datetime(struct i2c_client *client, struct rtc_time *tm)
+{
+        struct s35390a *s35390a = i2c_get_clientdata(client);
+        char buf[7];
+        int i, err;
+
+        err = s35390a_get_reg(s35390a, S35390A_CMD_TIME1, buf, sizeof(buf));
+        if (err < 0)
+                return err;
+
+        /* This chip returns the bits of each byte in reverse order */
+        for (i = 0; i < 7; ++i)
+                buf[i] = bitrev8(buf[i]);
+
+        tm->tm_sec = BCD2BIN(buf[S35390A_BYTE_SECS]);
+        tm->tm_min = BCD2BIN(buf[S35390A_BYTE_MINS]);
+        tm->tm_hour = s35390a_reg2hr(s35390a, buf[S35390A_BYTE_HOURS]);
+        tm->tm_wday = BCD2BIN(buf[S35390A_BYTE_WDAY]);
+        tm->tm_mday = BCD2BIN(buf[S35390A_BYTE_DAY]);
+        tm->tm_mon = BCD2BIN(buf[S35390A_BYTE_MONTH]) - 1;
+        tm->tm_year = BCD2BIN(buf[S35390A_BYTE_YEAR]) + 100;
+
+        dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d, mday=%d, "
+                "mon=%d, year=%d, wday=%d\n", __func__, tm->tm_sec,
+                tm->tm_min, tm->tm_hour, tm->tm_mday, tm->tm_mon, tm->tm_year,
+                tm->tm_wday);
+
+        return rtc_valid_tm(tm);
+}
+
+static int s35390a_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+        return s35390a_get_datetime(to_i2c_client(dev), tm);
+}
+
+static int s35390a_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+        return s35390a_set_datetime(to_i2c_client(dev), tm);
+}
+
+static const struct rtc_class_ops s35390a_rtc_ops = {
+        .read_time      = s35390a_rtc_read_time,
+        .set_time       = s35390a_rtc_set_time,
+};
+
+static struct i2c_driver s35390a_driver;
+
+static int s35390a_probe(struct i2c_client *client)
+{
+        int err;
+        unsigned int i;
+        struct s35390a *s35390a;
+        struct rtc_time tm;
+        char buf[1];
+
+        if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+                err = -ENODEV;
+                goto exit;
+        }
+
+        s35390a = kzalloc(sizeof(struct s35390a), GFP_KERNEL);
+        if (!s35390a) {
+                err = -ENOMEM;
+                goto exit;
+        }
+
+        s35390a->client[0] = client;
+        i2c_set_clientdata(client, s35390a);
+
+        /* This chip uses multiple addresses, use dummy devices for them */
+        for (i = 1; i < 8; ++i) {
+                s35390a->client[i] = i2c_new_dummy(client->adapter,
+                                        client->addr + i, "rtc-s35390a");
+                if (!s35390a->client[i]) {
+                        dev_err(&client->dev, "Address %02x unavailable\n",
+                                                client->addr + i);
+                        err = -EBUSY;
+                        goto exit_dummy;
+                }
+        }
+
+        err = s35390a_reset(s35390a);
+        if (err < 0) {
+                dev_err(&client->dev, "error resetting chip\n");
+                goto exit_dummy;
+        }
+
+        err = s35390a_disable_test_mode(s35390a);
+        if (err < 0) {
+                dev_err(&client->dev, "error disabling test mode\n");
+                goto exit_dummy;
+        }
+
+        err = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf));
+        if (err < 0) {
+                dev_err(&client->dev, "error checking 12/24 hour mode\n");
+                goto exit_dummy;
+        }
+        if (buf[0] & S35390A_FLAG_24H)
+                s35390a->twentyfourhour = 1;
+        else
+                s35390a->twentyfourhour = 0;
+
+        if (s35390a_get_datetime(client, &tm) < 0)
+                dev_warn(&client->dev, "clock needs to be set\n");
+
+        s35390a->rtc = rtc_device_register(s35390a_driver.driver.name,
+                                &client->dev, &s35390a_rtc_ops, THIS_MODULE);
+
+        if (IS_ERR(s35390a->rtc)) {
+                err = PTR_ERR(s35390a->rtc);
+                goto exit_dummy;
+        }
+        return 0;
+
+exit_dummy:
+        for (i = 1; i < 8; ++i)
+                if (s35390a->client[i])
+                        i2c_unregister_device(s35390a->client[i]);
+        kfree(s35390a);
+        i2c_set_clientdata(client, NULL);
+
+exit:
+        return err;
+}
+
+static int s35390a_remove(struct i2c_client *client)
+{
+        unsigned int i;
+
+        struct s35390a *s35390a = i2c_get_clientdata(client);
+        for (i = 1; i < 8; ++i)
+                if (s35390a->client[i])
+                        i2c_unregister_device(s35390a->client[i]);
+
+        rtc_device_unregister(s35390a->rtc);
+        kfree(s35390a);
+        i2c_set_clientdata(client, NULL);
+
+        return 0;
+}
+
+static struct i2c_driver s35390a_driver = {
+        .driver         = {
+                .name   = "rtc-s35390a",
+        },
+        .probe          = s35390a_probe,
+        .remove         = s35390a_remove,
+};
+
+static int __init s35390a_rtc_init(void)
+{
+        return i2c_add_driver(&s35390a_driver);
+}
+
+static void __exit s35390a_rtc_exit(void)
+{
+        i2c_del_driver(&s35390a_driver);
+}
+
+MODULE_AUTHOR("Byron Bradley <byron.bbradley@gmail.com>");
+MODULE_DESCRIPTION("S35390A RTC driver");
+MODULE_LICENSE("GPL");
+
+module_init(s35390a_rtc_init);
+module_exit(s35390a_rtc_exit);
diff --git a/drivers/s390/char/defkeymap.c b/drivers/s390/char/defkeymap.c
index 389346cda6c8..07c7f31081bc 100644
--- a/drivers/s390/char/defkeymap.c
+++ b/drivers/s390/char/defkeymap.c
@@ -151,8 +151,8 @@ char *func_table[MAX_NR_FUNC] = {
 };
 
 struct kbdiacruc accent_table[MAX_DIACR] = {
-        {'^', 'c', '\003'},     {'^', 'd', '\004'},
-        {'^', 'z', '\032'},     {'^', '\012', '\000'},
+        {'^', 'c', 0003},       {'^', 'd', 0004},
+        {'^', 'z', 0032},       {'^', 0012, 0000},
 };
 
 unsigned int accent_table_size = 4;
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index fecba05b4e77..e5c6f6af8765 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -757,7 +757,7 @@ void scsi_finish_command(struct scsi_cmnd *cmd)
                                 "Notifying upper driver of completion "
                                 "(result %x)\n", cmd->result));
 
-        good_bytes = scsi_bufflen(cmd);
+        good_bytes = scsi_bufflen(cmd) + cmd->request->extra_len;
         if (cmd->request->cmd_type != REQ_TYPE_BLOCK_PC) {
                 drv = scsi_cmd_to_driver(cmd);
                 if (drv->done)
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 1dc165ad17fb..e67c14e31bab 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -1577,8 +1577,7 @@ static void __scsi_scan_target(struct device *parent, unsigned int channel,
 }
 
 /**
- * scsi_scan_target - scan a target id, possibly including all LUNs on the
- *     target.
+ * scsi_scan_target - scan a target id, possibly including all LUNs on the target.
  * @parent:     host to scan
  * @channel:    channel to scan
  * @id:         target id to scan
diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c
index 6f09cbd7fc48..97c68d021d28 100644
--- a/drivers/serial/8250_pnp.c
+++ b/drivers/serial/8250_pnp.c
@@ -91,6 +91,8 @@ static const struct pnp_device_id pnp_dev_table[] = {
         /* Archtek America Corp. */
         /* Archtek SmartLink Modem 3334BT Plug & Play */
         {       "GVC000F",              0       },
+        /* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */
+        {       "GVC0303",              0       },
         /* Hayes */
         /* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
         {       "HAY0001",              0       },
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index b82595cf13e8..cf627cd1b4c8 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -686,7 +686,7 @@ config UART0_RTS_PIN
 
 config SERIAL_BFIN_UART1
         bool "Enable UART1"
-        depends on SERIAL_BFIN && (BF534 || BF536 || BF537 || BF54x)
+        depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
         help
           Enable UART1
 
@@ -699,14 +699,14 @@ config BFIN_UART1_CTSRTS
 
 config UART1_CTS_PIN
         int "UART1 CTS pin"
-        depends on BFIN_UART1_CTSRTS && (BF53x || BF561)
+        depends on BFIN_UART1_CTSRTS && !BF54x
         default -1
         help
           Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
 
 config UART1_RTS_PIN
         int "UART1 RTS pin"
-        depends on BFIN_UART1_CTSRTS && (BF53x || BF561)
+        depends on BFIN_UART1_CTSRTS && !BF54x
         default -1
         help
           Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index ac2a3ef28d55..0aa345b9a38b 100644
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -1,30 +1,11 @@
 /*
- * File:         drivers/serial/bfin_5xx.c
- * Based on:     Based on drivers/serial/sa1100.c
- * Author:       Aubrey Li <aubrey.li@analog.com>
+ * Blackfin On-Chip Serial Driver
  *
- * Created:
- * Description:  Driver for blackfin 5xx serial ports
+ * Copyright 2006-2007 Analog Devices Inc.
  *
- * Modified:
- *               Copyright 2006 Analog Devices Inc.
+ * Enter bugs at http://blackfin.uclinux.org/
  *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ * Licensed under the GPL-2 or later.
  */
 
 #if defined(CONFIG_SERIAL_BFIN_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
@@ -67,14 +48,12 @@
 #define DMA_RX_XCOUNT           512
 #define DMA_RX_YCOUNT           (PAGE_SIZE / DMA_RX_XCOUNT)
 
-#define DMA_RX_FLUSH_JIFFIES    5
+#define DMA_RX_FLUSH_JIFFIES    (HZ / 50)
 
 #ifdef CONFIG_SERIAL_BFIN_DMA
 static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart);
 #else
-static void bfin_serial_do_work(struct work_struct *work);
 static void bfin_serial_tx_chars(struct bfin_serial_port *uart);
-static void local_put_char(struct bfin_serial_port *uart, char ch);
 #endif
 
 static void bfin_serial_mctrl_check(struct bfin_serial_port *uart);
@@ -85,23 +64,26 @@ static void bfin_serial_mctrl_check(struct bfin_serial_port *uart);
 static void bfin_serial_stop_tx(struct uart_port *port)
 {
         struct bfin_serial_port *uart = (struct bfin_serial_port *)port;
+        struct circ_buf *xmit = &uart->port.info->xmit;
+#if !defined(CONFIG_BF54x) && !defined(CONFIG_SERIAL_BFIN_DMA)
+        unsigned short ier;
+#endif
 
         while (!(UART_GET_LSR(uart) & TEMT))
-                continue;
+                cpu_relax();
 
 #ifdef CONFIG_SERIAL_BFIN_DMA
         disable_dma(uart->tx_dma_channel);
+        xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1);
+        uart->port.icount.tx += uart->tx_count;
+        uart->tx_count = 0;
+        uart->tx_done = 1;
 #else
 #ifdef CONFIG_BF54x
-        /* Waiting for Transmission Finished */
-        while (!(UART_GET_LSR(uart) & TFI))
-                continue;
         /* Clear TFI bit */
         UART_PUT_LSR(uart, TFI);
         UART_CLEAR_IER(uart, ETBEI);
 #else
-        unsigned short ier;
-
         ier = UART_GET_IER(uart);
         ier &= ~ETBEI;
         UART_PUT_IER(uart, ier);
@@ -117,7 +99,8 @@ static void bfin_serial_start_tx(struct uart_port *port)
         struct bfin_serial_port *uart = (struct bfin_serial_port *)port;
 
 #ifdef CONFIG_SERIAL_BFIN_DMA
-        bfin_serial_dma_tx_chars(uart);
+        if (uart->tx_done)
+                bfin_serial_dma_tx_chars(uart);
 #else
 #ifdef CONFIG_BF54x
         UART_SET_IER(uart, ETBEI);
@@ -209,34 +192,27 @@ int kgdb_get_debug_char(void)
 }
 #endif
 
-#ifdef CONFIG_SERIAL_BFIN_PIO
-static void local_put_char(struct bfin_serial_port *uart, char ch)
-{
-        unsigned short status;
-        int flags = 0;
-
-        spin_lock_irqsave(&uart->port.lock, flags);
-
-        do {
-                status = UART_GET_LSR(uart);
-        } while (!(status & THRE));
-
-        UART_PUT_CHAR(uart, ch);
-        SSYNC();
-
-        spin_unlock_irqrestore(&uart->port.lock, flags);
-}
+#if ANOMALY_05000230 && defined(CONFIG_SERIAL_BFIN_PIO)
+# define UART_GET_ANOMALY_THRESHOLD(uart)    ((uart)->anomaly_threshold)
+# define UART_SET_ANOMALY_THRESHOLD(uart, v) ((uart)->anomaly_threshold = (v))
+#else
+# define UART_GET_ANOMALY_THRESHOLD(uart)    0
+# define UART_SET_ANOMALY_THRESHOLD(uart, v)
+#endif
 
+#ifdef CONFIG_SERIAL_BFIN_PIO
 static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
 {
         struct tty_struct *tty = uart->port.info->tty;
         unsigned int status, ch, flg;
-        static int in_break = 0;
+        static struct timeval anomaly_start = { .tv_sec = 0 };
 #ifdef CONFIG_KGDB_UART
         struct pt_regs *regs = get_irq_regs();
 #endif
 
         status = UART_GET_LSR(uart);
+        UART_CLEAR_LSR(uart);
+
         ch = UART_GET_CHAR(uart);
         uart->port.icount.rx++;
 
@@ -262,28 +238,56 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
 #endif
 
         if (ANOMALY_05000230) {
-                /* The BF533 family of processors have a nice misbehavior where
-                 * they continuously generate characters for a "single" break.
+                /* The BF533 (and BF561) family of processors have a nice anomaly
+                 * where they continuously generate characters for a "single" break.
                  * We have to basically ignore this flood until the "next" valid
-                 * character comes across.  All other Blackfin families operate
-                 * properly though.
+                 * character comes across.  Due to the nature of the flood, it is
+                 * not possible to reliably catch bytes that are sent too quickly
+                 * after this break.  So application code talking to the Blackfin
+                 * which sends a break signal must allow at least 1.5 character
+                 * times after the end of the break for things to stabilize.  This
+                 * timeout was picked as it must absolutely be larger than 1
+                 * character time +/- some percent.  So 1.5 sounds good.  All other
+                 * Blackfin families operate properly.  Woo.
                  * Note: While Anomaly 05000230 does not directly address this,
                  *       the changes that went in for it also fixed this issue.
+                 *       That anomaly was fixed in 0.5+ silicon.  I like bunnies.
                  */
-                if (in_break) {
-                        if (ch != 0) {
-                                in_break = 0;
-                                ch = UART_GET_CHAR(uart);
-                                if (bfin_revid() < 5)
-                                        return;
-                        } else
-                                return;
+                if (anomaly_start.tv_sec) {
+                        struct timeval curr;
+                        suseconds_t usecs;
+
+                        if ((~ch & (~ch + 1)) & 0xff)
+                                goto known_good_char;
+
+                        do_gettimeofday(&curr);
+                        if (curr.tv_sec - anomaly_start.tv_sec > 1)
+                                goto known_good_char;
+
+                        usecs = 0;
+                        if (curr.tv_sec != anomaly_start.tv_sec)
+                                usecs += USEC_PER_SEC;
+                        usecs += curr.tv_usec - anomaly_start.tv_usec;
+
+                        if (usecs > UART_GET_ANOMALY_THRESHOLD(uart))
+                                goto known_good_char;
+
+                        if (ch)
+                                anomaly_start.tv_sec = 0;
+                        else
+                                anomaly_start = curr;
+
+                        return;
+
+ known_good_char:
+                        anomaly_start.tv_sec = 0;
                 }
         }
 
         if (status & BI) {
                 if (ANOMALY_05000230)
-                        in_break = 1;
+                        if (bfin_revid() < 5)
+                                do_gettimeofday(&anomaly_start);
                 uart->port.icount.brk++;
                 if (uart_handle_break(&uart->port))
                         goto ignore_char;
@@ -324,7 +328,6 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart)
                 UART_PUT_CHAR(uart, uart->port.x_char);
                 uart->port.icount.tx++;
                 uart->port.x_char = 0;
-                return;
         }
         /*
          * Check the modem control lines before
@@ -337,9 +340,12 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart)
                 return;
         }
 
-        local_put_char(uart, xmit->buf[xmit->tail]);
-        xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-        uart->port.icount.tx++;
+        while ((UART_GET_LSR(uart) & THRE) && xmit->tail != xmit->head) {
+                UART_PUT_CHAR(uart, xmit->buf[xmit->tail]);
+                xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+                uart->port.icount.tx++;
+                SSYNC();
+        }
 
         if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
                 uart_write_wakeup(&uart->port);
@@ -352,21 +358,11 @@ static irqreturn_t bfin_serial_rx_int(int irq, void *dev_id)
 {
         struct bfin_serial_port *uart = dev_id;
 
-#ifdef CONFIG_BF54x
-        unsigned short status;
-        spin_lock(&uart->port.lock);
-        status = UART_GET_LSR(uart);
-        while ((UART_GET_IER(uart) & ERBFI) && (status & DR)) {
-                bfin_serial_rx_chars(uart);
-                status = UART_GET_LSR(uart);
-        }
-        spin_unlock(&uart->port.lock);
-#else
         spin_lock(&uart->port.lock);
-        while ((UART_GET_IIR(uart) & IIR_STATUS) == IIR_RX_READY)
+        while (UART_GET_LSR(uart) & DR)
                 bfin_serial_rx_chars(uart);
         spin_unlock(&uart->port.lock);
-#endif
+
         return IRQ_HANDLED;
 }
 
@@ -374,25 +370,16 @@ static irqreturn_t bfin_serial_tx_int(int irq, void *dev_id)
 {
         struct bfin_serial_port *uart = dev_id;
 
-#ifdef CONFIG_BF54x
-        unsigned short status;
         spin_lock(&uart->port.lock);
-        status = UART_GET_LSR(uart);
-        while ((UART_GET_IER(uart) & ETBEI) && (status & THRE)) {
+        if (UART_GET_LSR(uart) & THRE)
                 bfin_serial_tx_chars(uart);
-                status = UART_GET_LSR(uart);
-        }
         spin_unlock(&uart->port.lock);
-#else
-        spin_lock(&uart->port.lock);
-        while ((UART_GET_IIR(uart) & IIR_STATUS) == IIR_TX_READY)
-                bfin_serial_tx_chars(uart);
-        spin_unlock(&uart->port.lock);
-#endif
+
         return IRQ_HANDLED;
 }
+#endif
 
-
+#ifdef CONFIG_SERIAL_BFIN_CTSRTS
 static void bfin_serial_do_work(struct work_struct *work)
 {
         struct bfin_serial_port *uart = container_of(work, struct bfin_serial_port, cts_workqueue);
@@ -406,33 +393,27 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
 {
         struct circ_buf *xmit = &uart->port.info->xmit;
         unsigned short ier;
-        int flags = 0;
-
-        if (!uart->tx_done)
-                return;
 
         uart->tx_done = 0;
 
+        if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) {
+                uart->tx_count = 0;
+                uart->tx_done = 1;
+                return;
+        }
+
         if (uart->port.x_char) {
                 UART_PUT_CHAR(uart, uart->port.x_char);
                 uart->port.icount.tx++;
                 uart->port.x_char = 0;
-                uart->tx_done = 1;
-                return;
         }
+
         /*
          * Check the modem control lines before
          * transmitting anything.
          */
         bfin_serial_mctrl_check(uart);
 
-        if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) {
-                bfin_serial_stop_tx(&uart->port);
-                uart->tx_done = 1;
-                return;
-        }
-
-        spin_lock_irqsave(&uart->port.lock, flags);
         uart->tx_count = CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE);
         if (uart->tx_count > (UART_XMIT_SIZE - xmit->tail))
                 uart->tx_count = UART_XMIT_SIZE - xmit->tail;
@@ -448,6 +429,7 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
         set_dma_x_count(uart->tx_dma_channel, uart->tx_count);
         set_dma_x_modify(uart->tx_dma_channel, 1);
         enable_dma(uart->tx_dma_channel);
+
 #ifdef CONFIG_BF54x
         UART_SET_IER(uart, ETBEI);
 #else
@@ -455,7 +437,6 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
         ier |= ETBEI;
         UART_PUT_IER(uart, ier);
 #endif
-        spin_unlock_irqrestore(&uart->port.lock, flags);
 }
 
 static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart)
@@ -464,7 +445,11 @@ static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart)
         int i, flg, status;
 
         status = UART_GET_LSR(uart);
-        uart->port.icount.rx += CIRC_CNT(uart->rx_dma_buf.head, uart->rx_dma_buf.tail, UART_XMIT_SIZE);;
+        UART_CLEAR_LSR(uart);
+
+        uart->port.icount.rx +=
+                CIRC_CNT(uart->rx_dma_buf.head, uart->rx_dma_buf.tail,
+                UART_XMIT_SIZE);
 
         if (status & BI) {
                 uart->port.icount.brk++;
@@ -490,10 +475,12 @@ static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart)
         else
                 flg = TTY_NORMAL;
 
-        for (i = uart->rx_dma_buf.head; i < uart->rx_dma_buf.tail; i++) {
-                if (uart_handle_sysrq_char(&uart->port, uart->rx_dma_buf.buf[i]))
-                        goto dma_ignore_char;
-                uart_insert_char(&uart->port, status, OE, uart->rx_dma_buf.buf[i], flg);
+        for (i = uart->rx_dma_buf.tail; i != uart->rx_dma_buf.head; i++) {
+                if (i >= UART_XMIT_SIZE)
+                        i = 0;
+                if (!uart_handle_sysrq_char(&uart->port, uart->rx_dma_buf.buf[i]))
+                        uart_insert_char(&uart->port, status, OE,
+                                uart->rx_dma_buf.buf[i], flg);
         }
 
  dma_ignore_char:
@@ -503,23 +490,23 @@ static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart)
 void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart)
 {
         int x_pos, pos;
-        int flags = 0;
-
-        bfin_serial_dma_tx_chars(uart);
 
-        spin_lock_irqsave(&uart->port.lock, flags);
-        x_pos = DMA_RX_XCOUNT - get_dma_curr_xcount(uart->rx_dma_channel);
+        uart->rx_dma_nrows = get_dma_curr_ycount(uart->rx_dma_channel);
+        x_pos = get_dma_curr_xcount(uart->rx_dma_channel);
+        uart->rx_dma_nrows = DMA_RX_YCOUNT - uart->rx_dma_nrows;
+        if (uart->rx_dma_nrows == DMA_RX_YCOUNT)
+                uart->rx_dma_nrows = 0;
+        x_pos = DMA_RX_XCOUNT - x_pos;
         if (x_pos == DMA_RX_XCOUNT)
                 x_pos = 0;
 
         pos = uart->rx_dma_nrows * DMA_RX_XCOUNT + x_pos;
-
-        if (pos>uart->rx_dma_buf.tail) {
-                uart->rx_dma_buf.tail = pos;
+        if (pos != uart->rx_dma_buf.tail) {
+                uart->rx_dma_buf.head = pos;
                 bfin_serial_dma_rx_chars(uart);
-                uart->rx_dma_buf.head = uart->rx_dma_buf.tail;
+                uart->rx_dma_buf.tail = uart->rx_dma_buf.head;
         }
-        spin_unlock_irqrestore(&uart->port.lock, flags);
+
         uart->rx_dma_timer.expires = jiffies + DMA_RX_FLUSH_JIFFIES;
         add_timer(&(uart->rx_dma_timer));
 }
@@ -532,8 +519,8 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id)
 
         spin_lock(&uart->port.lock);
         if (!(get_dma_curr_irqstat(uart->tx_dma_channel)&DMA_RUN)) {
-                clear_dma_irqstat(uart->tx_dma_channel);
                 disable_dma(uart->tx_dma_channel);
+                clear_dma_irqstat(uart->tx_dma_channel);
 #ifdef CONFIG_BF54x
                 UART_CLEAR_IER(uart, ETBEI);
 #else
@@ -541,15 +528,13 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id)
                 ier &= ~ETBEI;
                 UART_PUT_IER(uart, ier);
 #endif
-                xmit->tail = (xmit->tail+uart->tx_count) &(UART_XMIT_SIZE -1);
-                uart->port.icount.tx+=uart->tx_count;
+                xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1);
+                uart->port.icount.tx += uart->tx_count;
 
                 if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
                         uart_write_wakeup(&uart->port);
 
-                if (uart_circ_empty(xmit))
-                        bfin_serial_stop_tx(&uart->port);
-                uart->tx_done = 1;
+                bfin_serial_dma_tx_chars(uart);
         }
 
         spin_unlock(&uart->port.lock);
@@ -561,18 +546,15 @@ static irqreturn_t bfin_serial_dma_rx_int(int irq, void *dev_id)
         struct bfin_serial_port *uart = dev_id;
         unsigned short irqstat;
 
-        uart->rx_dma_nrows++;
-        if (uart->rx_dma_nrows == DMA_RX_YCOUNT) {
-                uart->rx_dma_nrows = 0;
-                uart->rx_dma_buf.tail = DMA_RX_XCOUNT*DMA_RX_YCOUNT;
-                bfin_serial_dma_rx_chars(uart);
-                uart->rx_dma_buf.head = uart->rx_dma_buf.tail = 0;
-        }
         spin_lock(&uart->port.lock);
         irqstat = get_dma_curr_irqstat(uart->rx_dma_channel);
         clear_dma_irqstat(uart->rx_dma_channel);
-
         spin_unlock(&uart->port.lock);
+
+        del_timer(&(uart->rx_dma_timer));
+        uart->rx_dma_timer.expires = jiffies;
+        add_timer(&(uart->rx_dma_timer));
+
         return IRQ_HANDLED;
 }
 #endif
@@ -599,7 +581,11 @@ static unsigned int bfin_serial_get_mctrl(struct uart_port *port)
         if (uart->cts_pin < 0)
                 return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
 
+# ifdef BF54x
+        if (UART_GET_MSR(uart) & CTS)
+# else
         if (gpio_get_value(uart->cts_pin))
+# endif
                 return TIOCM_DSR | TIOCM_CAR;
         else
 #endif
@@ -614,9 +600,17 @@ static void bfin_serial_set_mctrl(struct uart_port *port, unsigned int mctrl)
                 return;
 
         if (mctrl & TIOCM_RTS)
+# ifdef BF54x
+                UART_PUT_MCR(uart, UART_GET_MCR(uart) & ~MRTS);
+# else
                 gpio_set_value(uart->rts_pin, 0);
+# endif
         else
+# ifdef BF54x
+                UART_PUT_MCR(uart, UART_GET_MCR(uart) | MRTS);
+# else
                 gpio_set_value(uart->rts_pin, 1);
+# endif
 #endif
 }
 
@@ -627,22 +621,17 @@ static void bfin_serial_mctrl_check(struct bfin_serial_port *uart)
 {
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
         unsigned int status;
-# ifdef CONFIG_SERIAL_BFIN_DMA
         struct uart_info *info = uart->port.info;
         struct tty_struct *tty = info->tty;
 
         status = bfin_serial_get_mctrl(&uart->port);
+        uart_handle_cts_change(&uart->port, status & TIOCM_CTS);
         if (!(status & TIOCM_CTS)) {
                 tty->hw_stopped = 1;
+                schedule_work(&uart->cts_workqueue);
         } else {
                 tty->hw_stopped = 0;
         }
-# else
-        status = bfin_serial_get_mctrl(&uart->port);
-        uart_handle_cts_change(&uart->port, status & TIOCM_CTS);
-        if (!(status & TIOCM_CTS))
-                schedule_work(&uart->cts_workqueue);
-# endif
 #endif
 }
 
@@ -743,6 +732,7 @@ static void bfin_serial_shutdown(struct uart_port *port)
         disable_dma(uart->rx_dma_channel);
         free_dma(uart->rx_dma_channel);
         del_timer(&(uart->rx_dma_timer));
+        dma_free_coherent(NULL, PAGE_SIZE, uart->rx_dma_buf.buf, 0);
 #else
 #ifdef  CONFIG_KGDB_UART
         if (uart->port.line != CONFIG_KGDB_UART_PORT)
@@ -814,6 +804,8 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios,
         quot = uart_get_divisor(port, baud);
         spin_lock_irqsave(&uart->port.lock, flags);
 
+        UART_SET_ANOMALY_THRESHOLD(uart, USEC_PER_SEC / baud * 15);
+
         do {
                 lsr = UART_GET_LSR(uart);
         } while (!(lsr & TEMT));
@@ -956,10 +948,9 @@ static void __init bfin_serial_init_ports(void)
                 bfin_serial_ports[i].rx_dma_channel =
                         bfin_serial_resource[i].uart_rx_dma_channel;
                 init_timer(&(bfin_serial_ports[i].rx_dma_timer));
-#else
-                INIT_WORK(&bfin_serial_ports[i].cts_workqueue, bfin_serial_do_work);
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
+                INIT_WORK(&bfin_serial_ports[i].cts_workqueue, bfin_serial_do_work);
                 bfin_serial_ports[i].cts_pin        =
                         bfin_serial_resource[i].uart_cts_pin;
                 bfin_serial_ports[i].rts_pin        =
diff --git a/drivers/serial/m32r_sio.c b/drivers/serial/m32r_sio.c
index 348ee2c19b58..c2bb11c02bde 100644
--- a/drivers/serial/m32r_sio.c
+++ b/drivers/serial/m32r_sio.c
@@ -421,7 +421,7 @@ static void transmit_chars(struct uart_sio_port *up)
                 up->port.icount.tx++;
                 if (uart_circ_empty(xmit))
                         break;
-                while (!serial_in(up, UART_LSR) & UART_LSR_THRE);
+                while (!(serial_in(up, UART_LSR) & UART_LSR_THRE));
 
         } while (--count > 0);
 
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 9ce12cb2cebc..a8c116b80bff 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -41,6 +41,7 @@
 #include <linux/delay.h>
 #include <linux/console.h>
 #include <linux/platform_device.h>
+#include <linux/serial_sci.h>
 
 #ifdef CONFIG_CPU_FREQ
 #include <linux/notifier.h>
@@ -54,7 +55,6 @@
 #include <asm/kgdb.h>
 #endif
 
-#include <asm/sci.h>
 #include "sh-sci.h"
 
 struct sci_port {
diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c
index 9cfcfd8dad5e..617efb1640b1 100644
--- a/drivers/sh/maple/maple.c
+++ b/drivers/sh/maple/maple.c
@@ -1,7 +1,7 @@
 /*
  * Core maple bus functionality
  *
- *  Copyright (C) 2007 Adrian McMenamin
+ *  Copyright (C) 2007, 2008 Adrian McMenamin
  *
  * Based on 2.4 code by:
  *
@@ -18,7 +18,6 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/device.h>
-#include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/list.h>
 #include <linux/io.h>
@@ -54,7 +53,7 @@ static struct device maple_bus;
 static int subdevice_map[MAPLE_PORTS];
 static unsigned long *maple_sendbuf, *maple_sendptr, *maple_lastptr;
 static unsigned long maple_pnp_time;
-static int started, scanning, liststatus, realscan;
+static int started, scanning, liststatus, fullscan;
 static struct kmem_cache *maple_queue_cache;
 
 struct maple_device_specify {
@@ -62,6 +61,9 @@ struct maple_device_specify {
         int unit;
 };
 
+static bool checked[4];
+static struct maple_device *baseunits[4];
+
 /**
  *  maple_driver_register - register a device driver
  *  automatically makes the driver bus a maple bus
@@ -309,11 +311,9 @@ static void maple_attach_driver(struct maple_device *mdev)
                 else
                         break;
 
-        if (realscan) {
-                printk(KERN_INFO "Maple device detected: %s\n",
-                        mdev->product_name);
-                printk(KERN_INFO "Maple device: %s\n", mdev->product_licence);
-        }
+        printk(KERN_INFO "Maple device detected: %s\n",
+                mdev->product_name);
+        printk(KERN_INFO "Maple device: %s\n", mdev->product_licence);
 
         function = be32_to_cpu(mdev->devinfo.function);
 
@@ -323,10 +323,9 @@ static void maple_attach_driver(struct maple_device *mdev)
                 mdev->driver = &maple_dummy_driver;
                 sprintf(mdev->dev.bus_id, "%d:0.port", mdev->port);
         } else {
-                if (realscan)
-                        printk(KERN_INFO
-                                "Maple bus at (%d, %d): Function 0x%lX\n",
-                                mdev->port, mdev->unit, function);
+                printk(KERN_INFO
+                        "Maple bus at (%d, %d): Function 0x%lX\n",
+                        mdev->port, mdev->unit, function);
 
                 matched =
                     bus_for_each_drv(&maple_bus_type, NULL, mdev,
@@ -334,9 +333,8 @@ static void maple_attach_driver(struct maple_device *mdev)
 
                 if (matched == 0) {
                         /* Driver does not exist yet */
-                        if (realscan)
-                                printk(KERN_INFO
-                                        "No maple driver found.\n");
+                        printk(KERN_INFO
+                                "No maple driver found.\n");
                         mdev->driver = &maple_dummy_driver;
                 }
                 sprintf(mdev->dev.bus_id, "%d:0%d.%lX", mdev->port,
@@ -472,9 +470,12 @@ static void maple_response_none(struct maple_device *mdev,
                 maple_detach_driver(mdev);
                 return;
         }
-        if (!started) {
-                printk(KERN_INFO "No maple devices attached to port %d\n",
-                       mdev->port);
+        if (!started || !fullscan) {
+                if (checked[mdev->port] == false) {
+                        checked[mdev->port] = true;
+                        printk(KERN_INFO "No maple devices attached"
+                                " to port %d\n", mdev->port);
+                }
                 return;
         }
         maple_clean_submap(mdev);
@@ -485,8 +486,14 @@ static void maple_response_devinfo(struct maple_device *mdev,
                                    char *recvbuf)
 {
         char submask;
-        if ((!started) || (scanning == 2)) {
-                maple_attach_driver(mdev);
+        if (!started || (scanning == 2) || !fullscan) {
+                if ((mdev->unit == 0) && (checked[mdev->port] == false)) {
+                        checked[mdev->port] = true;
+                        maple_attach_driver(mdev);
+                } else {
+                        if (mdev->unit != 0)
+                                maple_attach_driver(mdev);
+                }
                 return;
         }
         if (mdev->unit == 0) {
@@ -505,6 +512,7 @@ static void maple_dma_handler(struct work_struct *work)
         struct maple_device *dev;
         char *recvbuf;
         enum maple_code code;
+        int i;
 
         if (!maple_dma_done())
                 return;
@@ -557,6 +565,19 @@ static void maple_dma_handler(struct work_struct *work)
                 } else
                         scanning = 0;
 
+                if (!fullscan) {
+                        fullscan = 1;
+                        for (i = 0; i < MAPLE_PORTS; i++) {
+                                if (checked[i] == false) {
+                                        fullscan = 0;
+                                        dev = baseunits[i];
+                                        dev->mq->command =
+                                                MAPLE_COMMAND_DEVINFO;
+                                        dev->mq->length = 0;
+                                        maple_add_packet(dev->mq);
+                                }
+                        }
+                }
                 if (started == 0)
                         started = 1;
         }
@@ -694,7 +715,9 @@ static int __init maple_bus_init(void)
 
         /* setup maple ports */
         for (i = 0; i < MAPLE_PORTS; i++) {
+                checked[i] = false;
                 mdev[i] = maple_alloc_dev(i, 0);
+                baseunits[i] = mdev[i];
                 if (!mdev[i]) {
                         while (i-- > 0)
                                 maple_free_dev(mdev[i]);
@@ -703,12 +726,9 @@ static int __init maple_bus_init(void)
                 mdev[i]->mq->command = MAPLE_COMMAND_DEVINFO;
                 mdev[i]->mq->length = 0;
                 maple_add_packet(mdev[i]->mq);
-                /* delay aids hardware detection */
-                mdelay(5);
                 subdevice_map[i] = 0;
         }
 
-        realscan = 1;
         /* setup maplebus hardware */
         maplebus_dma_reset();
         /* initial detection */
diff --git a/drivers/spi/mpc52xx_psc_spi.c b/drivers/spi/mpc52xx_psc_spi.c
index 253ed5682a6d..a86315a0c5b8 100644
--- a/drivers/spi/mpc52xx_psc_spi.c
+++ b/drivers/spi/mpc52xx_psc_spi.c
@@ -42,6 +42,7 @@ struct mpc52xx_psc_spi {
 
         /* driver internal data */
         struct mpc52xx_psc __iomem *psc;
+        struct mpc52xx_psc_fifo __iomem *fifo;
         unsigned int irq;
         u8 bits_per_word;
         u8 busy;
@@ -139,6 +140,7 @@ static int mpc52xx_psc_spi_transfer_rxtx(struct spi_device *spi,
 {
         struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master);
         struct mpc52xx_psc __iomem *psc = mps->psc;
+        struct mpc52xx_psc_fifo __iomem *fifo = mps->fifo;
         unsigned rb = 0;        /* number of bytes receieved */
         unsigned sb = 0;        /* number of bytes sent */
         unsigned char *rx_buf = (unsigned char *)t->rx_buf;
@@ -190,11 +192,11 @@ static int mpc52xx_psc_spi_transfer_rxtx(struct spi_device *spi,
                         out_8(&psc->mode, 0);
                 } else {
                         out_8(&psc->mode, MPC52xx_PSC_MODE_FFULL);
-                        out_be16(&psc->rfalarm, rfalarm);
+                        out_be16(&fifo->rfalarm, rfalarm);
                 }
                 out_be16(&psc->mpc52xx_psc_imr, MPC52xx_PSC_IMR_RXRDY);
                 wait_for_completion(&mps->done);
-                recv_at_once = in_be16(&psc->rfnum);
+                recv_at_once = in_be16(&fifo->rfnum);
                 dev_dbg(&spi->dev, "%d bytes received\n", recv_at_once);
 
                 send_at_once = recv_at_once;
@@ -331,6 +333,7 @@ static void mpc52xx_psc_spi_cleanup(struct spi_device *spi)
 static int mpc52xx_psc_spi_port_config(int psc_id, struct mpc52xx_psc_spi *mps)
 {
         struct mpc52xx_psc __iomem *psc = mps->psc;
+        struct mpc52xx_psc_fifo __iomem *fifo = mps->fifo;
         u32 mclken_div;
         int ret = 0;
 
@@ -346,7 +349,7 @@ static int mpc52xx_psc_spi_port_config(int psc_id, struct mpc52xx_psc_spi *mps)
         /* Disable interrupts, interrupts are based on alarm level */
         out_be16(&psc->mpc52xx_psc_imr, 0);
         out_8(&psc->command, MPC52xx_PSC_SEL_MODE_REG_1);
-        out_8(&psc->rfcntl, 0);
+        out_8(&fifo->rfcntl, 0);
         out_8(&psc->mode, MPC52xx_PSC_MODE_FFULL);
 
         /* Configure 8bit codec mode as a SPI master and use EOF flags */
@@ -419,6 +422,8 @@ static int __init mpc52xx_psc_spi_do_probe(struct device *dev, u32 regaddr,
                 ret = -EFAULT;
                 goto free_master;
         }
+        /* On the 5200, fifo regs are immediately ajacent to the psc regs */
+        mps->fifo = ((void __iomem *)mps->psc) + sizeof(struct mpc52xx_psc);
 
         ret = request_irq(mps->irq, mpc52xx_psc_spi_isr, 0, "mpc52xx-psc-spi",
                                 mps);
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index 5c33cdb9cac7..a2b0aa48b8ea 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -87,12 +87,13 @@ config USB_DYNAMIC_MINORS
           If you are unsure about this, say N here.
 
 config USB_SUSPEND
-        bool "USB selective suspend/resume and wakeup (EXPERIMENTAL)"
-        depends on USB && PM && EXPERIMENTAL
+        bool "USB selective suspend/resume and wakeup"
+        depends on USB && PM
         help
           If you say Y here, you can use driver calls or the sysfs
-          "power/state" file to suspend or resume individual USB
-          peripherals.
+          "power/level" file to suspend or resume individual USB
+          peripherals and to enable or disable autosuspend (see
+          Documentation/usb/power-management.txt for more details).
 
           Also, USB "remote wakeup" signaling is supported, whereby some
           USB devices (like keyboards and network adapters) can wake up
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index f90ab5e94c58..d9d1eb19f2a1 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -28,35 +28,38 @@
  * devices is broken...
  */
 static const struct usb_device_id usb_quirk_list[] = {
-        /* Action Semiconductor flash disk */
-        { USB_DEVICE(0x10d6, 0x2200), .driver_info = USB_QUIRK_STRING_FETCH_255},
-
         /* CBM - Flash disk */
         { USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME },
+
         /* HP 5300/5370C scanner */
-        { USB_DEVICE(0x03f0, 0x0701), .driver_info = USB_QUIRK_STRING_FETCH_255 },
+        { USB_DEVICE(0x03f0, 0x0701), .driver_info =
+                        USB_QUIRK_STRING_FETCH_255 },
 
         /* Creative SB Audigy 2 NX */
         { USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },
 
+        /* Philips PSC805 audio device */
+        { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME },
+
         /* Roland SC-8820 */
         { USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
 
         /* Edirol SD-20 */
         { USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },
 
-        /* INTEL VALUE SSD */
-        { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
-
         /* M-Systems Flash Disk Pioneers */
         { USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
 
-        /* Philips PSC805 audio device */
-        { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME },
+        /* Action Semiconductor flash disk */
+        { USB_DEVICE(0x10d6, 0x2200), .driver_info =
+                        USB_QUIRK_STRING_FETCH_255 },
 
         /* SKYMEDI USB_DRIVE */
         { USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME },
 
+        /* INTEL VALUE SSD */
+        { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
+
         { }  /* terminating entry must be last */
 };
 
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 4e984060c984..1f0db51190cc 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -99,8 +99,7 @@ struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev,
 EXPORT_SYMBOL_GPL(usb_ifnum_to_if);
 
 /**
- * usb_altnum_to_altsetting - get the altsetting structure with a given
- *      alternate setting number.
+ * usb_altnum_to_altsetting - get the altsetting structure with a given alternate setting number.
  * @intf: the interface containing the altsetting in question
  * @altnum: the desired alternate setting number
  *
@@ -234,7 +233,7 @@ static int ksuspend_usb_init(void)
          * singlethreaded.  Its job doesn't justify running on more
          * than one CPU.
          */
-        ksuspend_usb_wq = create_singlethread_workqueue("ksuspend_usbd");
+        ksuspend_usb_wq = create_freezeable_workqueue("ksuspend_usbd");
         if (!ksuspend_usb_wq)
                 return -ENOMEM;
         return 0;
@@ -442,8 +441,7 @@ EXPORT_SYMBOL_GPL(usb_put_intf);
  */
 
 /**
- * usb_lock_device_for_reset - cautiously acquire the lock for a
- *      usb device structure
+ * usb_lock_device_for_reset - cautiously acquire the lock for a usb device structure
  * @udev: device that's being locked
  * @iface: interface bound to the driver making the request (optional)
  *
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index 4f6bfa100f2a..2c32bd08ee7d 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -92,7 +92,6 @@ struct printer_dev {
         u8                      *current_rx_buf;
         u8                      printer_status;
         u8                      reset_printer;
-        struct class_device     *printer_class_dev;
         struct cdev             printer_cdev;
         struct device           *pdev;
         u8                      printer_cdev_open;
diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c
index 4402d6f042d9..096c41cc40d1 100644
--- a/drivers/usb/gadget/pxa2xx_udc.c
+++ b/drivers/usb/gadget/pxa2xx_udc.c
@@ -103,6 +103,12 @@ static const char ep0name [] = "ep0";
 #error "Can't configure both IXP and PXA"
 #endif
 
+/* IXP doesn't yet support <linux/clk.h> */
+#define clk_get(dev,name)       NULL
+#define clk_enable(clk)         do { } while (0)
+#define clk_disable(clk)        do { } while (0)
+#define clk_put(clk)            do { } while (0)
+
 #endif
 
 #include "pxa2xx_udc.h"
@@ -934,20 +940,31 @@ static void udc_disable(struct pxa2xx_udc *);
 /* We disable the UDC -- and its 48 MHz clock -- whenever it's not
  * in active use.
  */
-static int pullup(struct pxa2xx_udc *udc, int is_active)
+static int pullup(struct pxa2xx_udc *udc)
 {
-        is_active = is_active && udc->vbus && udc->pullup;
+        int is_active = udc->vbus && udc->pullup && !udc->suspended;
         DMSG("%s\n", is_active ? "active" : "inactive");
-        if (is_active)
-                udc_enable(udc);
-        else {
-                if (udc->gadget.speed != USB_SPEED_UNKNOWN) {
-                        DMSG("disconnect %s\n", udc->driver
-                                ? udc->driver->driver.name
-                                : "(no driver)");
-                        stop_activity(udc, udc->driver);
+        if (is_active) {
+                if (!udc->active) {
+                        udc->active = 1;
+                        /* Enable clock for USB device */
+                        clk_enable(udc->clk);
+                        udc_enable(udc);
                 }
-                udc_disable(udc);
+        } else {
+                if (udc->active) {
+                        if (udc->gadget.speed != USB_SPEED_UNKNOWN) {
+                                DMSG("disconnect %s\n", udc->driver
+                                        ? udc->driver->driver.name
+                                        : "(no driver)");
+                                stop_activity(udc, udc->driver);
+                        }
+                        udc_disable(udc);
+                        /* Disable clock for USB device */
+                        clk_disable(udc->clk);
+                        udc->active = 0;
+                }
+
         }
         return 0;
 }
@@ -958,9 +975,9 @@ static int pxa2xx_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
         struct pxa2xx_udc       *udc;
 
         udc = container_of(_gadget, struct pxa2xx_udc, gadget);
-        udc->vbus = is_active = (is_active != 0);
+        udc->vbus = (is_active != 0);
         DMSG("vbus %s\n", is_active ? "supplied" : "inactive");
-        pullup(udc, is_active);
+        pullup(udc);
         return 0;
 }
 
@@ -975,9 +992,8 @@ static int pxa2xx_udc_pullup(struct usb_gadget *_gadget, int is_active)
         if (!udc->mach->gpio_pullup && !udc->mach->udc_command)
                 return -EOPNOTSUPP;
 
-        is_active = (is_active != 0);
-        udc->pullup = is_active;
-        pullup(udc, is_active);
+        udc->pullup = (is_active != 0);
+        pullup(udc);
         return 0;
 }
 
@@ -997,7 +1013,7 @@ static const struct usb_gadget_ops pxa2xx_udc_ops = {
 #ifdef CONFIG_USB_GADGET_DEBUG_FS
 
 static int
-udc_seq_show(struct seq_file *m, void *d)
+udc_seq_show(struct seq_file *m, void *_d)
 {
         struct pxa2xx_udc       *dev = m->private;
         unsigned long           flags;
@@ -1146,11 +1162,6 @@ static void udc_disable(struct pxa2xx_udc *dev)
 
         udc_clear_mask_UDCCR(UDCCR_UDE);
 
-#ifdef  CONFIG_ARCH_PXA
-        /* Disable clock for USB device */
-        clk_disable(dev->clk);
-#endif
-
         ep0_idle (dev);
         dev->gadget.speed = USB_SPEED_UNKNOWN;
 }
@@ -1191,11 +1202,6 @@ static void udc_enable (struct pxa2xx_udc *dev)
 {
         udc_clear_mask_UDCCR(UDCCR_UDE);
 
-#ifdef  CONFIG_ARCH_PXA
-        /* Enable clock for USB device */
-        clk_enable(dev->clk);
-#endif
-
         /* try to clear these bits before we enable the udc */
         udc_ack_int_UDCCR(UDCCR_SUSIR|/*UDCCR_RSTIR|*/UDCCR_RESIR);
 
@@ -1286,7 +1292,7 @@ fail:
          * for set_configuration as well as eventual disconnect.
          */
         DMSG("registered gadget driver '%s'\n", driver->driver.name);
-        pullup(dev, 1);
+        pullup(dev);
         dump_state(dev);
         return 0;
 }
@@ -1329,7 +1335,8 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
                 return -EINVAL;
 
         local_irq_disable();
-        pullup(dev, 0);
+        dev->pullup = 0;
+        pullup(dev);
         stop_activity(dev, driver);
         local_irq_enable();
 
@@ -2131,13 +2138,11 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev)
         if (irq < 0)
                 return -ENODEV;
 
-#ifdef  CONFIG_ARCH_PXA
         dev->clk = clk_get(&pdev->dev, "UDCCLK");
         if (IS_ERR(dev->clk)) {
                 retval = PTR_ERR(dev->clk);
                 goto err_clk;
         }
-#endif
 
         pr_debug("%s: IRQ %d%s%s\n", driver_name, irq,
                 dev->has_cfr ? "" : " (!cfr)",
@@ -2250,10 +2255,8 @@ lubbock_fail0:
         if (dev->mach->gpio_vbus)
                 gpio_free(dev->mach->gpio_vbus);
  err_gpio_vbus:
-#ifdef  CONFIG_ARCH_PXA
         clk_put(dev->clk);
  err_clk:
-#endif
         return retval;
 }
 
@@ -2269,7 +2272,9 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev)
         if (dev->driver)
                 return -EBUSY;
 
-        udc_disable(dev);
+        dev->pullup = 0;
+        pullup(dev);
+
         remove_debug_files(dev);
 
         if (dev->got_irq) {
@@ -2289,9 +2294,7 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev)
         if (dev->mach->gpio_pullup)
                 gpio_free(dev->mach->gpio_pullup);
 
-#ifdef  CONFIG_ARCH_PXA
         clk_put(dev->clk);
-#endif
 
         platform_set_drvdata(pdev, NULL);
         the_controller = NULL;
@@ -2317,10 +2320,15 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev)
 static int pxa2xx_udc_suspend(struct platform_device *dev, pm_message_t state)
 {
         struct pxa2xx_udc       *udc = platform_get_drvdata(dev);
+        unsigned long flags;
 
         if (!udc->mach->gpio_pullup && !udc->mach->udc_command)
                 WARN("USB host won't detect disconnect!\n");
-        pullup(udc, 0);
+        udc->suspended = 1;
+
+        local_irq_save(flags);
+        pullup(udc);
+        local_irq_restore(flags);
 
         return 0;
 }
@@ -2328,8 +2336,12 @@ static int pxa2xx_udc_suspend(struct platform_device *dev, pm_message_t state)
 static int pxa2xx_udc_resume(struct platform_device *dev)
 {
         struct pxa2xx_udc       *udc = platform_get_drvdata(dev);
+        unsigned long flags;
 
-        pullup(udc, 1);
+        udc->suspended = 0;
+        local_irq_save(flags);
+        pullup(udc);
+        local_irq_restore(flags);
 
         return 0;
 }
diff --git a/drivers/usb/gadget/pxa2xx_udc.h b/drivers/usb/gadget/pxa2xx_udc.h
index b67e3ff5e4eb..e2c19e88c875 100644
--- a/drivers/usb/gadget/pxa2xx_udc.h
+++ b/drivers/usb/gadget/pxa2xx_udc.h
@@ -119,7 +119,9 @@ struct pxa2xx_udc {
                                                 has_cfr : 1,
                                                 req_pending : 1,
                                                 req_std : 1,
-                                                req_config : 1;
+                                                req_config : 1,
+                                                suspended : 1,
+                                                active : 1;
 
 #define start_watchdog(dev) mod_timer(&dev->timer, jiffies + (HZ/200))
         struct timer_list                       timer;
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 776a97f33914..2e49de820b14 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -319,10 +319,10 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh)
                         if (likely (last->urb != urb)) {
                                 ehci_urb_done(ehci, last->urb, last_status);
                                 count++;
+                                last_status = -EINPROGRESS;
                         }
                         ehci_qtd_free (ehci, last);
                         last = NULL;
-                        last_status = -EINPROGRESS;
                 }
 
                 /* ignore urbs submitted during completions we reported */
diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c
index 0130fd8571e4..d7071c855758 100644
--- a/drivers/usb/host/isp116x-hcd.c
+++ b/drivers/usb/host/isp116x-hcd.c
@@ -911,8 +911,7 @@ static int isp116x_hub_status_data(struct usb_hcd *hcd, char *buf)
                 buf[0] = 0;
 
         for (i = 0; i < ports; i++) {
-                u32 status = isp116x->rhport[i] =
-                    isp116x_read_reg32(isp116x, i ? HCRHPORT2 : HCRHPORT1);
+                u32 status = isp116x_read_reg32(isp116x, i ? HCRHPORT2 : HCRHPORT1);
 
                 if (status & (RH_PS_CSC | RH_PS_PESC | RH_PS_PSSC
                               | RH_PS_OCIC | RH_PS_PRSC)) {
@@ -1031,7 +1030,9 @@ static int isp116x_hub_control(struct usb_hcd *hcd,
                 DBG("GetPortStatus\n");
                 if (!wIndex || wIndex > ports)
                         goto error;
-                tmp = isp116x->rhport[--wIndex];
+                spin_lock_irqsave(&isp116x->lock, flags);
+                tmp = isp116x_read_reg32(isp116x, (--wIndex) ? HCRHPORT2 : HCRHPORT1);
+                spin_unlock_irqrestore(&isp116x->lock, flags);
                 *(__le32 *) buf = cpu_to_le32(tmp);
                 DBG("GetPortStatus: port[%d]  %08x\n", wIndex + 1, tmp);
                 break;
@@ -1080,8 +1081,6 @@ static int isp116x_hub_control(struct usb_hcd *hcd,
                 spin_lock_irqsave(&isp116x->lock, flags);
                 isp116x_write_reg32(isp116x, wIndex
                                     ? HCRHPORT2 : HCRHPORT1, tmp);
-                isp116x->rhport[wIndex] =
-                    isp116x_read_reg32(isp116x, wIndex ? HCRHPORT2 : HCRHPORT1);
                 spin_unlock_irqrestore(&isp116x->lock, flags);
                 break;
         case SetPortFeature:
@@ -1095,24 +1094,22 @@ static int isp116x_hub_control(struct usb_hcd *hcd,
                         spin_lock_irqsave(&isp116x->lock, flags);
                         isp116x_write_reg32(isp116x, wIndex
                                             ? HCRHPORT2 : HCRHPORT1, RH_PS_PSS);
+                        spin_unlock_irqrestore(&isp116x->lock, flags);
                         break;
                 case USB_PORT_FEAT_POWER:
                         DBG("USB_PORT_FEAT_POWER\n");
                         spin_lock_irqsave(&isp116x->lock, flags);
                         isp116x_write_reg32(isp116x, wIndex
                                             ? HCRHPORT2 : HCRHPORT1, RH_PS_PPS);
+                        spin_unlock_irqrestore(&isp116x->lock, flags);
                         break;
                 case USB_PORT_FEAT_RESET:
                         DBG("USB_PORT_FEAT_RESET\n");
                         root_port_reset(isp116x, wIndex);
-                        spin_lock_irqsave(&isp116x->lock, flags);
                         break;
                 default:
                         goto error;
                 }
-                isp116x->rhport[wIndex] =
-                    isp116x_read_reg32(isp116x, wIndex ? HCRHPORT2 : HCRHPORT1);
-                spin_unlock_irqrestore(&isp116x->lock, flags);
                 break;
 
         default:
diff --git a/drivers/usb/host/isp116x.h b/drivers/usb/host/isp116x.h
index b91e2edd9c5c..595b90a99848 100644
--- a/drivers/usb/host/isp116x.h
+++ b/drivers/usb/host/isp116x.h
@@ -270,7 +270,6 @@ struct isp116x {
         u32 rhdesca;
         u32 rhdescb;
         u32 rhstatus;
-        u32 rhport[2];
 
         /* async schedule: control, bulk */
         struct list_head async;
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 76db2fef4657..91dc433dbcf1 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -92,6 +92,7 @@ struct ftdi_sio_quirk {
 };
 
 static int   ftdi_jtag_probe            (struct usb_serial *serial);
+static int   ftdi_mtxorb_hack_setup     (struct usb_serial *serial);
 static void  ftdi_USB_UIRT_setup        (struct ftdi_private *priv);
 static void  ftdi_HE_TIRA1_setup        (struct ftdi_private *priv);
 
@@ -99,6 +100,10 @@ static struct ftdi_sio_quirk ftdi_jtag_quirk = {
         .probe  = ftdi_jtag_probe,
 };
 
+static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
+        .probe  = ftdi_mtxorb_hack_setup,
+};
+
 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
         .port_probe = ftdi_USB_UIRT_setup,
 };
@@ -161,6 +166,8 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
+        { USB_DEVICE(MTXORB_VK_VID, MTXORB_VK_PID),
+                .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
         { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
@@ -274,6 +281,7 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
         { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
         { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
@@ -1088,6 +1096,23 @@ static int ftdi_jtag_probe(struct usb_serial *serial)
         return 0;
 }
 
+/*
+ * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
+ * We have to correct it if we want to read from it.
+ */
+static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
+{
+        struct usb_host_endpoint *ep = serial->dev->ep_in[1];
+        struct usb_endpoint_descriptor *ep_desc = &ep->desc;
+
+        if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
+                ep_desc->wMaxPacketSize = 0x40;
+                info("Fixing invalid wMaxPacketSize on read pipe");
+        }
+
+        return 0;
+}
+
 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
  *   it is called when the usb device is disconnected
  *
diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index 6eee2ab914ec..e1eb742abcd5 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -102,6 +102,13 @@
  * (http://www.joernonline.de/dw/doku.php?id=start&idx=projects:oocdlink) */
 #define FTDI_OOCDLINK_PID       0xbaf8  /* Amontec JTAGkey */
 
+/*
+ * The following are the values for the Matrix Orbital VK204-25-USB
+ * display, which use the FT232RL.
+ */
+#define MTXORB_VK_VID           0x1b3d
+#define MTXORB_VK_PID           0x0158
+
 /* Interbiometrics USB I/O Board */
 /* Developed for Interbiometrics by Rudolf Gugler */
 #define INTERBIOMETRICS_VID              0x1209
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 869ecd374cb4..aeeb9cb20999 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -110,11 +110,20 @@
 
 /* vendor id and device id defines */
 
+/* The native mos7840/7820 component */
 #define USB_VENDOR_ID_MOSCHIP           0x9710
 #define MOSCHIP_DEVICE_ID_7840          0x7840
 #define MOSCHIP_DEVICE_ID_7820          0x7820
+/* The native component can have its vendor/device id's overridden
+ * in vendor-specific implementations.  Such devices can be handled
+ * by making a change here, in moschip_port_id_table, and in
+ * moschip_id_table_combined
+ */
+#define USB_VENDOR_ID_BANDB             0x0856
+#define BANDB_DEVICE_ID_USOPTL4_4       0xAC44
+#define BANDB_DEVICE_ID_USOPTL4_2       0xAC42
 
-/* Interrupt Rotinue Defines    */
+/* Interrupt Routine Defines    */
 
 #define SERIAL_IIR_RLS      0x06
 #define SERIAL_IIR_MS       0x00
@@ -159,12 +168,16 @@
 static struct usb_device_id moschip_port_id_table[] = {
         {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)},
         {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)},
         {}                      /* terminating entry */
 };
 
 static __devinitdata struct usb_device_id moschip_id_table_combined[] = {
         {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)},
         {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)},
         {}                      /* terminating entry */
 };
 
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index af2674c57414..828a4377ec6a 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -120,6 +120,9 @@ static int  option_send_setup(struct usb_serial_port *port);
 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 
+#define AXESSTEL_VENDOR_ID                      0x1726
+#define AXESSTEL_PRODUCT_MV110H                 0x1000
+
 #define BANDRICH_VENDOR_ID                      0x1A8D
 #define BANDRICH_PRODUCT_C100_1                 0x1002
 #define BANDRICH_PRODUCT_C100_2                 0x1003
@@ -192,6 +195,7 @@ static struct usb_device_id option_ids[] = {
         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
+        { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c
index 958f5b17847c..b9b8ede61fb3 100644
--- a/drivers/usb/storage/protocol.c
+++ b/drivers/usb/storage/protocol.c
@@ -170,7 +170,6 @@ unsigned int usb_stor_access_xfer_buf(unsigned char *buffer,
 
         if (!sg)
                 sg = scsi_sglist(srb);
-        buflen = min(buflen, scsi_bufflen(srb));
 
         /* This loop handles a single s-g list entry, which may
          * include multiple pages.  Find the initial page structure
@@ -232,6 +231,7 @@ void usb_stor_set_xfer_buf(unsigned char *buffer,
         unsigned int offset = 0;
         struct scatterlist *sg = NULL;
 
+        buflen = min(buflen, scsi_bufflen(srb));
         buflen = usb_stor_access_xfer_buf(buffer, buflen, srb, &sg, &offset,
                         TO_XFER_BUF);
         if (buflen < scsi_bufflen(srb))
diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c
index e83dfba7e636..742b5c656d66 100644
--- a/drivers/video/sm501fb.c
+++ b/drivers/video/sm501fb.c
@@ -237,12 +237,14 @@ static int sm501fb_check_var(struct fb_var_screeninfo *var,
 
         /* check we can fit these values into the registers */
 
-        if (var->hsync_len > 255 || var->vsync_len > 255)
+        if (var->hsync_len > 255 || var->vsync_len > 63)
                 return -EINVAL;
 
-        if ((var->xres + var->right_margin) >= 4096)
+        /* hdisplay end and hsync start */
+        if ((var->xres + var->right_margin) > 4096)
                 return -EINVAL;
 
+        /* vdisplay end and vsync start */
         if ((var->yres + var->lower_margin) > 2048)
                 return -EINVAL;
 
@@ -281,19 +283,21 @@ static int sm501fb_check_var(struct fb_var_screeninfo *var,
                 var->blue.length        = var->bits_per_pixel;
                 var->blue.offset        = 0;
                 var->transp.length      = 0;
+                var->transp.offset      = 0;
 
                 break;
 
         case 16:
                 if (sm->pdata->flags & SM501_FBPD_SWAP_FB_ENDIAN) {
-                        var->red.offset         = 11;
-                        var->green.offset       = 5;
-                        var->blue.offset        = 0;
-                } else {
                         var->blue.offset        = 11;
                         var->green.offset       = 5;
                         var->red.offset         = 0;
+                } else {
+                        var->red.offset         = 11;
+                        var->green.offset       = 5;
+                        var->blue.offset        = 0;
                 }
+                var->transp.offset      = 0;
 
                 var->red.length         = 5;
                 var->green.length       = 6;
@@ -397,7 +401,7 @@ static int sm501fb_set_par_common(struct fb_info *info,
                 break;
 
         case 16:
-                info->fix.visual = FB_VISUAL_DIRECTCOLOR;
+                info->fix.visual = FB_VISUAL_TRUECOLOR;
                 break;
 
         case 32:
@@ -613,6 +617,7 @@ static int sm501fb_set_par_crt(struct fb_info *info)
 
         case 16:
                 control |= SM501_DC_CRT_CONTROL_16BPP;
+                sm501fb_setup_gamma(fbi, SM501_DC_CRT_PALETTE);
                 break;
 
         case 32:
@@ -750,6 +755,7 @@ static int sm501fb_set_par_pnl(struct fb_info *info)
 
         case 16:
                 control |= SM501_DC_PANEL_CONTROL_16BPP;
+                sm501fb_setup_gamma(fbi, SM501_DC_PANEL_PALETTE);
                 break;
 
         case 32:
diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c
index 70fb4ee2b421..919ce75db9e2 100644
--- a/drivers/video/tridentfb.c
+++ b/drivers/video/tridentfb.c
@@ -564,19 +564,46 @@ static inline void write3CE(int reg, unsigned char val)
         t_outb(val, 0x3CF);
 }
 
-static inline void enable_mmio(void)
+static void enable_mmio(void)
 {
+        unsigned char tmp;
+
         /* Goto New Mode */
         outb(0x0B, 0x3C4);
         inb(0x3C5);
 
         /* Unprotect registers */
         outb(NewMode1, 0x3C4);
+        tmp = inb(0x3C5);
         outb(0x80, 0x3C5);
 
         /* Enable MMIO */
         outb(PCIReg, 0x3D4);
         outb(inb(0x3D5) | 0x01, 0x3D5);
+
+        t_outb(NewMode1, 0x3C4);
+        t_outb(tmp, 0x3C5);
+}
+
+static void disable_mmio(void)
+{
+        unsigned char tmp;
+
+        /* Goto New Mode */
+        t_outb(0x0B, 0x3C4);
+        t_inb(0x3C5);
+
+        /* Unprotect registers */
+        t_outb(NewMode1, 0x3C4);
+        tmp = t_inb(0x3C5);
+        t_outb(0x80, 0x3C5);
+
+        /* Disable MMIO */
+        t_outb(PCIReg, 0x3D4);
+        t_outb(t_inb(0x3D5) & ~0x01, 0x3D5);
+
+        outb(NewMode1, 0x3C4);
+        outb(tmp, 0x3C5);
 }
 
 #define crtc_unlock()   write3X4(CRTVSyncEnd, read3X4(CRTVSyncEnd) & 0x7F)
@@ -1239,9 +1266,9 @@ static int __devinit trident_pci_probe(struct pci_dev * dev,
         default_par.io_virt = ioremap_nocache(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
 
         if (!default_par.io_virt) {
-                release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
                 debug("ioremap failed\n");
-                return -1;
+                err = -1;
+                goto out_unmap1;
         }
 
         enable_mmio();
@@ -1252,25 +1279,21 @@ static int __devinit trident_pci_probe(struct pci_dev * dev,
 
         if (!request_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len, "tridentfb")) {
                 debug("request_mem_region failed!\n");
+                disable_mmio();
                 err = -1;
-                goto out_unmap;
+                goto out_unmap1;
         }
 
         fb_info.screen_base = ioremap_nocache(tridentfb_fix.smem_start,
                                               tridentfb_fix.smem_len);
 
         if (!fb_info.screen_base) {
-                release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
                 debug("ioremap failed\n");
                 err = -1;
-                goto out_unmap;
+                goto out_unmap2;
         }
 
         output("%s board found\n", pci_name(dev));
-#if 0
-        output("Trident board found : mem = %X, io = %X, mem_v = %X, io_v = %X\n",
-                tridentfb_fix.smem_start, tridentfb_fix.mmio_start, fb_info.screen_base, default_par.io_virt);
-#endif
         displaytype = get_displaytype();
 
         if (flatpanel)
@@ -1288,9 +1311,12 @@ static int __devinit trident_pci_probe(struct pci_dev * dev,
 
         if (!fb_find_mode(&default_var, &fb_info, mode, NULL, 0, NULL, bpp)) {
                 err = -EINVAL;
-                goto out_unmap;
+                goto out_unmap2;
         }
-        fb_alloc_cmap(&fb_info.cmap, 256, 0);
+        err = fb_alloc_cmap(&fb_info.cmap, 256, 0);
+        if (err < 0)
+                goto out_unmap2;
+
         if (defaultaccel && acc)
                 default_var.accel_flags |= FB_ACCELF_TEXT;
         else
@@ -1300,19 +1326,24 @@ static int __devinit trident_pci_probe(struct pci_dev * dev,
         fb_info.device = &dev->dev;
         if (register_framebuffer(&fb_info) < 0) {
                 printk(KERN_ERR "tridentfb: could not register Trident framebuffer\n");
+                fb_dealloc_cmap(&fb_info.cmap);
                 err = -EINVAL;
-                goto out_unmap;
+                goto out_unmap2;
         }
         output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
            fb_info.node, fb_info.fix.id, default_var.xres,
            default_var.yres, default_var.bits_per_pixel);
         return 0;
 
-out_unmap:
-        if (default_par.io_virt)
-                iounmap(default_par.io_virt);
+out_unmap2:
         if (fb_info.screen_base)
                 iounmap(fb_info.screen_base);
+        release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
+        disable_mmio();
+out_unmap1:
+        if (default_par.io_virt)
+                iounmap(default_par.io_virt);
+        release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
         return err;
 }
 
@@ -1323,7 +1354,7 @@ static void __devexit trident_pci_remove(struct pci_dev *dev)
         iounmap(par->io_virt);
         iounmap(fb_info.screen_base);
         release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
-        release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
+        release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
 }
 
 /* List of boards that we are trying to support */
diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c
index 688e435b4d9a..10211e493001 100644
--- a/drivers/w1/masters/ds1wm.c
+++ b/drivers/w1/masters/ds1wm.c
@@ -17,6 +17,7 @@
 #include <linux/pm.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/err.h>
 #include <linux/delay.h>
 #include <linux/ds1wm.h>
 
@@ -102,12 +103,12 @@ struct ds1wm_data {
 static inline void ds1wm_write_register(struct ds1wm_data *ds1wm_data, u32 reg,
                                         u8 val)
 {
-        __raw_writeb(val, ds1wm_data->map + (reg << ds1wm_data->bus_shift));
+        __raw_writeb(val, ds1wm_data->map + (reg << ds1wm_data->bus_shift));
 }
 
 static inline u8 ds1wm_read_register(struct ds1wm_data *ds1wm_data, u32 reg)
 {
-        return __raw_readb(ds1wm_data->map + (reg << ds1wm_data->bus_shift));
+        return __raw_readb(ds1wm_data->map + (reg << ds1wm_data->bus_shift));
 }
 
 
@@ -149,8 +150,8 @@ static int ds1wm_reset(struct ds1wm_data *ds1wm_data)
         timeleft = wait_for_completion_timeout(&reset_done, DS1WM_TIMEOUT);
         ds1wm_data->reset_complete = NULL;
         if (!timeleft) {
-                dev_dbg(&ds1wm_data->pdev->dev, "reset failed\n");
-                return 1;
+                dev_err(&ds1wm_data->pdev->dev, "reset failed\n");
+                return 1;
         }
 
         /* Wait for the end of the reset. According to the specs, the time
@@ -167,11 +168,11 @@ static int ds1wm_reset(struct ds1wm_data *ds1wm_data)
                 (ds1wm_data->active_high ? DS1WM_INTEN_IAS : 0));
 
         if (!ds1wm_data->slave_present) {
-                dev_dbg(&ds1wm_data->pdev->dev, "reset: no devices found\n");
-                return 1;
-        }
+                dev_dbg(&ds1wm_data->pdev->dev, "reset: no devices found\n");
+                return 1;
+        }
 
-        return 0;
+        return 0;
 }
 
 static int ds1wm_write(struct ds1wm_data *ds1wm_data, u8 data)
@@ -334,7 +335,7 @@ static int ds1wm_probe(struct platform_device *pdev)
         if (!pdev)
                 return -ENODEV;
 
-        ds1wm_data = kzalloc(sizeof (*ds1wm_data), GFP_KERNEL);
+        ds1wm_data = kzalloc(sizeof(*ds1wm_data), GFP_KERNEL);
         if (!ds1wm_data)
                 return -ENOMEM;
 
@@ -374,8 +375,8 @@ static int ds1wm_probe(struct platform_device *pdev)
                 goto err1;
 
         ds1wm_data->clk = clk_get(&pdev->dev, "ds1wm");
-        if (!ds1wm_data->clk) {
-                ret = -ENOENT;
+        if (IS_ERR(ds1wm_data->clk)) {
+                ret = PTR_ERR(ds1wm_data->clk);
                 goto err2;
         }
 
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 41a958a7585e..5e1a4fb5cacb 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1424,6 +1424,18 @@ struct elf_note_info {
         int thread_notes;
 };
 
+/*
+ * When a regset has a writeback hook, we call it on each thread before
+ * dumping user memory.  On register window machines, this makes sure the
+ * user memory backing the register data is up to date before we read it.
+ */
+static void do_thread_regset_writeback(struct task_struct *task,
+                                       const struct user_regset *regset)
+{
+        if (regset->writeback)
+                regset->writeback(task, regset, 1);
+}
+
 static int fill_thread_core_info(struct elf_thread_core_info *t,
                                  const struct user_regset_view *view,
                                  long signr, size_t *total)
@@ -1445,6 +1457,8 @@ static int fill_thread_core_info(struct elf_thread_core_info *t,
                   sizeof(t->prstatus), &t->prstatus);
         *total += notesize(&t->notes[0]);
 
+        do_thread_regset_writeback(t->task, &view->regsets[0]);
+
         /*
          * Each other regset might generate a note too.  For each regset
          * that has no core_note_type or is inactive, we leave t->notes[i]
@@ -1452,6 +1466,7 @@ static int fill_thread_core_info(struct elf_thread_core_info *t,
          */
         for (i = 1; i < view->n; ++i) {
                 const struct user_regset *regset = &view->regsets[i];
+                do_thread_regset_writeback(t->task, regset);
                 if (regset->core_note_type &&
                     (!regset->active || regset->active(t->task, regset))) {
                         int ret;
diff --git a/fs/buffer.c b/fs/buffer.c
index 3ebccf4aa7e3..ddfdd2c80bf9 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -627,8 +627,7 @@ repeat:
 }
 
 /**
- * sync_mapping_buffers - write out and wait upon a mapping's "associated"
- *                        buffers
+ * sync_mapping_buffers - write out & wait upon a mapping's "associated" buffers
  * @mapping: the mapping which wants those buffers written
  *
  * Starts I/O against the buffers at mapping->private_list, and waits upon
@@ -836,7 +835,7 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list)
                 smp_mb();
                 if (buffer_dirty(bh)) {
                         list_add(&bh->b_assoc_buffers,
-                                 &bh->b_assoc_map->private_list);
+                                 &mapping->private_list);
                         bh->b_assoc_map = mapping;
                 }
                 spin_unlock(lock);
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index edd248367b36..dbd91461853c 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -6,7 +6,9 @@ and sync so that events like out of disk space get reported properly on
 cached files. Fix setxattr failure to certain Samba versions. Fix mount
 of second share to disconnected server session (autoreconnect on this).
 Add ability to modify cifs acls for handling chmod (when mounted with
-cifsacl flag).
+cifsacl flag). Fix prefixpath path separator so we can handle mounts
+with prefixpaths longer than one directory (one path component) when
+mounted to Windows servers.
 
 Version 1.51
 ------------
diff --git a/fs/cifs/README b/fs/cifs/README
index c623e2f9c5db..50306229b0f9 100644
--- a/fs/cifs/README
+++ b/fs/cifs/README
@@ -461,7 +461,7 @@ A partial list of the supported mount options follows:
  cifsacl        Report mode bits (e.g. on stat) based on the Windows ACL for
                 the file. (EXPERIMENTAL)
  servern        Specify the server 's netbios name (RFC1001 name) to use
-                when attempting to setup a session to the server.  This is
+                when attempting to setup a session to the server. 
                 This is needed for mounting to some older servers (such
                 as OS/2 or Windows 98 and Windows ME) since they do not
                 support a default server name.  A server name can be up
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 73c4c419663c..0228ed06069e 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -98,8 +98,7 @@ void cifs_dump_mids(struct TCP_Server_Info *server)
                         if (mid_entry->resp_buf) {
                                 cifs_dump_detail(mid_entry->resp_buf);
                                 cifs_dump_mem("existing buf: ",
-                                        mid_entry->resp_buf,
-                                        62 /* fixme */);
+                                        mid_entry->resp_buf, 62);
                         }
                 }
         }
@@ -439,7 +438,7 @@ cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
 
         return length;
 }
-#endif
+#endif /* STATS */
 
 static struct proc_dir_entry *proc_fs_cifs;
 read_proc_t cifs_txanchor_read;
@@ -482,7 +481,7 @@ cifs_proc_init(void)
                                 cifs_stats_read, NULL);
         if (pde)
                 pde->write_proc = cifs_stats_write;
-#endif
+#endif /* STATS */
         pde = create_proc_read_entry("cifsFYI", 0, proc_fs_cifs,
                                 cifsFYI_read, NULL);
         if (pde)
@@ -918,4 +917,12 @@ security_flags_write(struct file *file, const char __user *buffer,
         /* BB should we turn on MAY flags for other MUST options? */
         return count;
 }
-#endif
+#else
+inline void cifs_proc_init(void)
+{
+}
+
+inline void cifs_proc_clean(void)
+{
+}
+#endif /* PROC_FS */
diff --git a/fs/cifs/cifs_debug.h b/fs/cifs/cifs_debug.h
index c26cd0d2c6d5..5eb3b83bbfa7 100644
--- a/fs/cifs/cifs_debug.h
+++ b/fs/cifs/cifs_debug.h
@@ -25,8 +25,11 @@
 
 void cifs_dump_mem(char *label, void *data, int length);
 #ifdef CONFIG_CIFS_DEBUG2
+#define DBG2 2
 void cifs_dump_detail(struct smb_hdr *);
 void cifs_dump_mids(struct TCP_Server_Info *);
+#else
+#define DBG2 0
 #endif
 extern int traceSMB;            /* flag which enables the function below */
 void dump_smb(struct smb_hdr *, int);
@@ -64,10 +67,10 @@ extern int cifsERROR;
  *      ---------
  */
 #else           /* _CIFS_DEBUG */
-#define cERROR(button,prspec)
-#define cEVENT(format,arg...)
+#define cERROR(button, prspec)
+#define cEVENT(format, arg...)
 #define cFYI(button, prspec)
-#define cifserror(format,arg...)
+#define cifserror(format, arg...)
 #endif          /* _CIFS_DEBUG */
 
 #endif                          /* _H_CIFS_DEBUG */
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index 6ad447529961..7f8838253410 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -286,7 +286,7 @@ static void dump_referral(const struct dfs_info3_param *ref)
         cFYI(1, ("DFS: node path: %s", ref->node_name));
         cFYI(1, ("DFS: fl: %hd, srv_type: %hd", ref->flags, ref->server_type));
         cFYI(1, ("DFS: ref_flags: %hd, path_consumed: %hd", ref->ref_flag,
-                                ref->PathConsumed));
+                                ref->path_consumed));
 }
 
 
diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c
index d543accc10dd..6653e29637a7 100644
--- a/fs/cifs/cifs_spnego.c
+++ b/fs/cifs/cifs_spnego.c
@@ -125,7 +125,7 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
 #ifdef CONFIG_CIFS_DEBUG2
         if (cifsFYI && !IS_ERR(spnego_key)) {
                 struct cifs_spnego_msg *msg = spnego_key->payload.data;
-                cifs_dump_mem("SPNEGO reply blob:", msg->data, min(1024,
+                cifs_dump_mem("SPNEGO reply blob:", msg->data, min(1024U,
                                 msg->secblob_len + msg->sesskey_len));
         }
 #endif /* CONFIG_CIFS_DEBUG2 */
diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
index b5903b89250d..7d75272a6b3f 100644
--- a/fs/cifs/cifs_unicode.c
+++ b/fs/cifs/cifs_unicode.c
@@ -32,7 +32,7 @@
  *
  */
 int
-cifs_strfromUCS_le(char *to, const __le16 * from,
+cifs_strfromUCS_le(char *to, const __le16 *from,
                    int len, const struct nls_table *codepage)
 {
         int i;
@@ -61,7 +61,7 @@ cifs_strfromUCS_le(char *to, const __le16 * from,
  *
  */
 int
-cifs_strtoUCS(__le16 * to, const char *from, int len,
+cifs_strtoUCS(__le16 *to, const char *from, int len,
               const struct nls_table *codepage)
 {
         int charlen;
diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h
index 614c11fcdcb6..14eb9a2395d3 100644
--- a/fs/cifs/cifs_unicode.h
+++ b/fs/cifs/cifs_unicode.h
@@ -254,7 +254,8 @@ UniStrstr(const wchar_t *ucs1, const wchar_t *ucs2)
         const wchar_t *anchor2 = ucs2;
 
         while (*ucs1) {
-                if (*ucs1 == *ucs2) {   /* Partial match found */
+                if (*ucs1 == *ucs2) {
+                        /* Partial match found */
                         ucs1++;
                         ucs2++;
                 } else {
@@ -279,7 +280,8 @@ UniToupper(register wchar_t uc)
 {
         register const struct UniCaseRange *rp;
 
-        if (uc < sizeof (CifsUniUpperTable)) {  /* Latin characters */
+        if (uc < sizeof(CifsUniUpperTable)) {
+                /* Latin characters */
                 return uc + CifsUniUpperTable[uc];      /* Use base tables */
         } else {
                 rp = CifsUniUpperRange; /* Use range tables */
@@ -320,7 +322,8 @@ UniTolower(wchar_t uc)
 {
         register struct UniCaseRange *rp;
 
-        if (uc < sizeof (UniLowerTable)) {      /* Latin characters */
+        if (uc < sizeof(UniLowerTable)) {
+                /* Latin characters */
                 return uc + UniLowerTable[uc];  /* Use base tables */
         } else {
                 rp = UniLowerRange;     /* Use range tables */
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index a7035bd18e4e..f93932c21772 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -46,8 +46,7 @@ static struct cifs_wksid wksidarr[NUM_WK_SIDS] = {
 static const struct cifs_sid sid_everyone = {
         1, 1, {0, 0, 0, 0, 0, 1}, {0} };
 /* group users */
-static const struct cifs_sid sid_user =
-                {1, 2 , {0, 0, 0, 0, 0, 5}, {} };
+static const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {} };
 
 
 int match_sid(struct cifs_sid *ctsid)
@@ -195,9 +194,9 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode,
         /* For deny ACEs we change the mask so that subsequent allow access
            control entries do not turn on the bits we are denying */
         if (type == ACCESS_DENIED) {
-                if (flags & GENERIC_ALL) {
+                if (flags & GENERIC_ALL)
                         *pbits_to_set &= ~S_IRWXUGO;
-                }
+
                 if ((flags & GENERIC_WRITE) ||
                         ((flags & FILE_WRITE_RIGHTS) == FILE_WRITE_RIGHTS))
                         *pbits_to_set &= ~S_IWUGO;
@@ -216,9 +215,7 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode,
 
         if (flags & GENERIC_ALL) {
                 *pmode |= (S_IRWXUGO & (*pbits_to_set));
-#ifdef CONFIG_CIFS_DEBUG2
-                cFYI(1, ("all perms"));
-#endif
+                cFYI(DBG2, ("all perms"));
                 return;
         }
         if ((flags & GENERIC_WRITE) ||
@@ -231,9 +228,7 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode,
                         ((flags & FILE_EXEC_RIGHTS) == FILE_EXEC_RIGHTS))
                 *pmode |= (S_IXUGO & (*pbits_to_set));
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("access flags 0x%x mode now 0x%x", flags, *pmode));
-#endif
+        cFYI(DBG2, ("access flags 0x%x mode now 0x%x", flags, *pmode));
         return;
 }
 
@@ -262,9 +257,7 @@ static void mode_to_access_flags(umode_t mode, umode_t bits_to_use,
         if (mode & S_IXUGO)
                 *pace_flags |= SET_FILE_EXEC_RIGHTS;
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("mode: 0x%x, access flags now 0x%x", mode, *pace_flags));
-#endif
+        cFYI(DBG2, ("mode: 0x%x, access flags now 0x%x", mode, *pace_flags));
         return;
 }
 
@@ -358,11 +351,9 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl,
                 return;
         }
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("DACL revision %d size %d num aces %d",
+        cFYI(DBG2, ("DACL revision %d size %d num aces %d",
                 le16_to_cpu(pdacl->revision), le16_to_cpu(pdacl->size),
                 le32_to_cpu(pdacl->num_aces)));
-#endif
 
         /* reset rwx permissions for user/group/other.
            Also, if num_aces is 0 i.e. DACL has no ACEs,
@@ -381,10 +372,6 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl,
                 ppace = kmalloc(num_aces * sizeof(struct cifs_ace *),
                                 GFP_KERNEL);
 
-/*              cifscred->cecount = pdacl->num_aces;
-                cifscred->aces = kmalloc(num_aces *
-                        sizeof(struct cifs_ace *), GFP_KERNEL);*/
-
                 for (i = 0; i < num_aces; ++i) {
                         ppace[i] = (struct cifs_ace *) (acl_base + acl_size);
 #ifdef CONFIG_CIFS_DEBUG2
@@ -437,7 +424,7 @@ static int set_chmod_dacl(struct cifs_acl *pndacl, struct cifs_sid *pownersid,
                                          &sid_everyone, nmode, S_IRWXO);
 
         pndacl->size = cpu_to_le16(size + sizeof(struct cifs_acl));
-        pndacl->num_aces = 3;
+        pndacl->num_aces = cpu_to_le32(3);
 
         return (0);
 }
@@ -495,13 +482,11 @@ static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len,
                                 le32_to_cpu(pntsd->gsidoffset));
         dacloffset = le32_to_cpu(pntsd->dacloffset);
         dacl_ptr = (struct cifs_acl *)((char *)pntsd + dacloffset);
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("revision %d type 0x%x ooffset 0x%x goffset 0x%x "
+        cFYI(DBG2, ("revision %d type 0x%x ooffset 0x%x goffset 0x%x "
                  "sacloffset 0x%x dacloffset 0x%x",
                  pntsd->revision, pntsd->type, le32_to_cpu(pntsd->osidoffset),
                  le32_to_cpu(pntsd->gsidoffset),
                  le32_to_cpu(pntsd->sacloffset), dacloffset));
-#endif
 /*      cifs_dump_mem("owner_sid: ", owner_sid_ptr, 64); */
         rc = parse_sid(owner_sid_ptr, end_of_acl);
         if (rc)
@@ -636,9 +621,7 @@ static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
         struct super_block *sb;
         struct cifs_sb_info *cifs_sb;
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("set ACL for %s from mode 0x%x", path, inode->i_mode));
-#endif
+        cFYI(DBG2, ("set ACL for %s from mode 0x%x", path, inode->i_mode));
 
         if (!inode)
                 return (rc);
@@ -669,9 +652,7 @@ static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
         }
 
         rc = CIFSSMBSetCIFSACL(xid, cifs_sb->tcon, fid, pnntsd, acllen);
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("SetCIFSACL rc = %d", rc));
-#endif
+        cFYI(DBG2, ("SetCIFSACL rc = %d", rc));
         if (unlock_file == TRUE)
                 atomic_dec(&open_file->wrtPending);
         else
@@ -689,9 +670,7 @@ void acl_to_uid_mode(struct inode *inode, const char *path)
         u32 acllen = 0;
         int rc = 0;
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("converting ACL to mode for %s", path));
-#endif
+        cFYI(DBG2, ("converting ACL to mode for %s", path));
         pntsd = get_cifs_acl(&acllen, inode, path);
 
         /* if we can retrieve the ACL, now parse Access Control Entries, ACEs */
@@ -712,9 +691,7 @@ int mode_to_acl(struct inode *inode, const char *path, __u64 nmode)
         struct cifs_ntsd *pntsd = NULL; /* acl obtained from server */
         struct cifs_ntsd *pnntsd = NULL; /* modified acl to be sent to server */
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("set ACL from mode for %s", path));
-#endif
+        cFYI(DBG2, ("set ACL from mode for %s", path));
 
         /* Get the security descriptor */
         pntsd = get_cifs_acl(&acllen, inode, path);
@@ -736,16 +713,12 @@ int mode_to_acl(struct inode *inode, const char *path, __u64 nmode)
 
                 rc = build_sec_desc(pntsd, pnntsd, acllen, inode, nmode);
 
-#ifdef CONFIG_CIFS_DEBUG2
-                cFYI(1, ("build_sec_desc rc: %d", rc));
-#endif
+                cFYI(DBG2, ("build_sec_desc rc: %d", rc));
 
                 if (!rc) {
                         /* Set the security descriptor */
                         rc = set_cifs_acl(pnntsd, acllen, inode, path);
-#ifdef CONFIG_CIFS_DEBUG2
-                        cFYI(1, ("set_cifs_acl rc: %d", rc));
-#endif
+                        cFYI(DBG2, ("set_cifs_acl rc: %d", rc));
                 }
 
                 kfree(pnntsd);
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index fcc434227691..a04b17e5a9d0 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -204,9 +204,8 @@ cifs_put_super(struct super_block *sb)
                 return;
         }
         rc = cifs_umount(sb, cifs_sb);
-        if (rc) {
+        if (rc)
                 cERROR(1, ("cifs_umount failed with return code %d", rc));
-        }
 #ifdef CONFIG_CIFS_DFS_UPCALL
         if (cifs_sb->mountdata) {
                 kfree(cifs_sb->mountdata);
@@ -461,7 +460,7 @@ int cifs_xstate_get(struct super_block *sb, struct fs_quota_stat *qstats)
 
 static struct quotactl_ops cifs_quotactl_ops = {
         .set_xquota     = cifs_xquota_set,
-        .get_xquota     = cifs_xquota_set,
+        .get_xquota     = cifs_xquota_get,
         .set_xstate     = cifs_xstate_set,
         .get_xstate     = cifs_xstate_get,
 };
@@ -472,9 +471,7 @@ static void cifs_umount_begin(struct vfsmount *vfsmnt, int flags)
         struct cifs_sb_info *cifs_sb;
         struct cifsTconInfo *tcon;
 
-#ifdef CONFIG_CIFS_DFS_UPCALL
         dfs_shrink_umount_helper(vfsmnt);
-#endif /* CONFIG CIFS_DFS_UPCALL */
 
         if (!(flags & MNT_FORCE))
                 return;
@@ -992,9 +989,7 @@ static int __init
 init_cifs(void)
 {
         int rc = 0;
-#ifdef CONFIG_PROC_FS
         cifs_proc_init();
-#endif
 /*      INIT_LIST_HEAD(&GlobalServerList);*/    /* BB not implemented yet */
         INIT_LIST_HEAD(&GlobalSMBSessionList);
         INIT_LIST_HEAD(&GlobalTreeConnectionList);
@@ -1095,19 +1090,15 @@ init_cifs(void)
  out_destroy_inodecache:
         cifs_destroy_inodecache();
  out_clean_proc:
-#ifdef CONFIG_PROC_FS
         cifs_proc_clean();
-#endif
         return rc;
 }
 
 static void __exit
 exit_cifs(void)
 {
-        cFYI(0, ("exit_cifs"));
-#ifdef CONFIG_PROC_FS
+        cFYI(DBG2, ("exit_cifs"));
         cifs_proc_clean();
-#endif
 #ifdef CONFIG_CIFS_DFS_UPCALL
         unregister_key_type(&key_type_dns_resolver);
 #endif
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 5d32d8ddc82e..69a2e1942542 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -454,7 +454,7 @@ struct dir_notify_req {
 
 struct dfs_info3_param {
         int flags; /* DFSREF_REFERRAL_SERVER, DFSREF_STORAGE_SERVER*/
-        int PathConsumed;
+        int path_consumed;
         int server_type;
         int ref_flag;
         char *path_name;
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 2f09f565a3d9..0af63e6b426b 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -53,11 +53,11 @@ extern int SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
 extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
                         struct kvec *, int /* nvec to send */,
                         int * /* type of buf returned */ , const int flags);
-extern int SendReceiveBlockingLock(const unsigned int /* xid */ ,
-                                        struct cifsTconInfo *,
-                                struct smb_hdr * /* input */ ,
-                                struct smb_hdr * /* out */ ,
-                                int * /* bytes returned */);
+extern int SendReceiveBlockingLock(const unsigned int xid,
+                        struct cifsTconInfo *ptcon,
+                        struct smb_hdr *in_buf ,
+                        struct smb_hdr *out_buf,
+                        int *bytes_returned);
 extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
 extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *);
 extern int is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
@@ -84,7 +84,7 @@ extern __u16 GetNextMid(struct TCP_Server_Info *server);
 extern struct oplock_q_entry *AllocOplockQEntry(struct inode *, u16,
                                                  struct cifsTconInfo *);
 extern void DeleteOplockQEntry(struct oplock_q_entry *);
-extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ );
+extern struct timespec cifs_NTtimeToUnix(u64 utc_nanoseconds_since_1601);
 extern u64 cifs_UnixTimeToNT(struct timespec);
 extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time);
 extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time);
@@ -104,7 +104,11 @@ extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
 extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
 #ifdef CONFIG_CIFS_DFS_UPCALL
 extern void dfs_shrink_umount_helper(struct vfsmount *vfsmnt);
-#endif
+#else
+static inline void dfs_shrink_umount_helper(struct vfsmount *vfsmnt)
+{
+}
+#endif /* DFS_UPCALL */
 void cifs_proc_init(void);
 void cifs_proc_clean(void);
 
@@ -175,11 +179,11 @@ extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
                         struct kstatfs *FSData);
 
 extern int CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon,
-                        const char *fileName, const FILE_BASIC_INFO * data,
+                        const char *fileName, const FILE_BASIC_INFO *data,
                         const struct nls_table *nls_codepage,
                         int remap_special_chars);
 extern int CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
-                        const FILE_BASIC_INFO * data, __u16 fid);
+                        const FILE_BASIC_INFO *data, __u16 fid);
 #if 0
 extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon,
                         char *fileName, __u16 dos_attributes,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 9409524e4bf8..30bbe448e260 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1,7 +1,7 @@
 /*
  *   fs/cifs/cifssmb.c
  *
- *   Copyright (C) International Business Machines  Corp., 2002,2007
+ *   Copyright (C) International Business Machines  Corp., 2002,2008
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   Contains the routines for constructing the SMB PDUs themselves
@@ -102,10 +102,12 @@ static void mark_open_files_invalid(struct cifsTconInfo *pTcon)
            to this tcon */
 }
 
-/* If the return code is zero, this function must fill in request_buf pointer */
+/* Allocate and return pointer to an SMB request buffer, and set basic
+   SMB information in the SMB header.  If the return code is zero, this
+   function must have filled in request_buf pointer */
 static int
 small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
-         void **request_buf /* returned */)
+                void **request_buf)
 {
         int rc = 0;
 
@@ -363,7 +365,7 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
                 *response_buf = *request_buf;
 
         header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,
-                        wct /*wct */ );
+                        wct);
 
         if (tcon != NULL)
                 cifs_stats_inc(&tcon->num_smbs_sent);
@@ -523,7 +525,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
                         if (remain >= (MIN_TZ_ADJ / 2))
                                 result += MIN_TZ_ADJ;
                         if (val < 0)
-                                result = - result;
+                                result = -result;
                         server->timeAdj = result;
                 } else {
                         server->timeAdj = (int)tmp;
@@ -600,7 +602,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
         server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize),
                         (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE);
         server->maxRw = le32_to_cpu(pSMBr->MaxRawSize);
-        cFYI(0, ("Max buf = %d", ses->server->maxBuf));
+        cFYI(DBG2, ("Max buf = %d", ses->server->maxBuf));
         GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey);
         server->capabilities = le32_to_cpu(pSMBr->Capabilities);
         server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone);
@@ -868,9 +870,8 @@ PsxDelete:
         pSMB->ByteCount = cpu_to_le16(byte_count);
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Posix delete returned %d", rc));
-        }
         cifs_buf_release(pSMB);
 
         cifs_stats_inc(&tcon->num_deletes);
@@ -916,9 +917,8 @@ DelFileRetry:
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
         cifs_stats_inc(&tcon->num_deletes);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Error in RMFile = %d", rc));
-        }
 
         cifs_buf_release(pSMB);
         if (rc == -EAGAIN)
@@ -961,9 +961,8 @@ RmDirRetry:
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
         cifs_stats_inc(&tcon->num_rmdirs);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Error in RMDir = %d", rc));
-        }
 
         cifs_buf_release(pSMB);
         if (rc == -EAGAIN)
@@ -1005,9 +1004,8 @@ MkDirRetry:
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
         cifs_stats_inc(&tcon->num_mkdirs);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Error in Mkdir = %d", rc));
-        }
 
         cifs_buf_release(pSMB);
         if (rc == -EAGAIN)
@@ -1017,7 +1015,7 @@ MkDirRetry:
 
 int
 CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags,
-                __u64 mode, __u16 * netfid, FILE_UNIX_BASIC_INFO *pRetData,
+                __u64 mode, __u16 *netfid, FILE_UNIX_BASIC_INFO *pRetData,
                 __u32 *pOplock, const char *name,
                 const struct nls_table *nls_codepage, int remap)
 {
@@ -1027,8 +1025,8 @@ CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags,
         int rc = 0;
         int bytes_returned = 0;
         __u16 params, param_offset, offset, byte_count, count;
-        OPEN_PSX_REQ * pdata;
-        OPEN_PSX_RSP * psx_rsp;
+        OPEN_PSX_REQ *pdata;
+        OPEN_PSX_RSP *psx_rsp;
 
         cFYI(1, ("In POSIX Create"));
 PsxCreat:
@@ -1110,9 +1108,7 @@ PsxCreat:
         /* check to make sure response data is there */
         if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) {
                 pRetData->Type = cpu_to_le32(-1); /* unknown */
-#ifdef CONFIG_CIFS_DEBUG2
-                cFYI(1, ("unknown type"));
-#endif
+                cFYI(DBG2, ("unknown type"));
         } else {
                 if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP)
                                         + sizeof(FILE_UNIX_BASIC_INFO)) {
@@ -1169,8 +1165,8 @@ static __u16 convert_disposition(int disposition)
 int
 SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon,
             const char *fileName, const int openDisposition,
-            const int access_flags, const int create_options, __u16 * netfid,
-            int *pOplock, FILE_ALL_INFO * pfile_info,
+            const int access_flags, const int create_options, __u16 *netfid,
+            int *pOplock, FILE_ALL_INFO *pfile_info,
             const struct nls_table *nls_codepage, int remap)
 {
         int rc = -EACCES;
@@ -1221,8 +1217,8 @@ OldOpenRetry:
 
         if (create_options & CREATE_OPTION_SPECIAL)
                 pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM);
-        else
-                pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */
+        else /* BB FIXME BB */
+                pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/);
 
         /* if ((omode & S_IWUGO) == 0)
                 pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/
@@ -1284,8 +1280,8 @@ OldOpenRetry:
 int
 CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon,
             const char *fileName, const int openDisposition,
-            const int access_flags, const int create_options, __u16 * netfid,
-            int *pOplock, FILE_ALL_INFO * pfile_info,
+            const int access_flags, const int create_options, __u16 *netfid,
+            int *pOplock, FILE_ALL_INFO *pfile_info,
             const struct nls_table *nls_codepage, int remap)
 {
         int rc = -EACCES;
@@ -1556,9 +1552,9 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
         } /* else setting file size with write of zero bytes */
         if (wct == 14)
                 byte_count = bytes_sent + 1; /* pad */
-        else /* wct == 12 */ {
+        else /* wct == 12 */
                 byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */
-        }
+
         pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF);
         pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16);
         pSMB->hdr.smb_buf_length += byte_count;
@@ -1663,7 +1659,7 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
                 rc = -EIO;
                 *nbytes = 0;
         } else {
-                WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base;
+                WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base;
                 *nbytes = le16_to_cpu(pSMBr->CountHigh);
                 *nbytes = (*nbytes) << 16;
                 *nbytes += le16_to_cpu(pSMBr->Count);
@@ -1744,9 +1740,8 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
                 /* SMB buffer freed by function above */
         }
         cifs_stats_inc(&tcon->num_locks);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Send error in Lock = %d", rc));
-        }
 
         /* Note: On -EAGAIN error only caller can retry on handle based calls
         since file handle passed in no longer valid */
@@ -1791,7 +1786,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
 
         count = sizeof(struct cifs_posix_lock);
         pSMB->MaxParameterCount = cpu_to_le16(2);
-        pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */
+        pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */
         pSMB->SetupCount = 1;
         pSMB->Reserved3 = 0;
         if (get_flag)
@@ -1972,9 +1967,8 @@ renameRetry:
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
         cifs_stats_inc(&tcon->num_renames);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Send error in rename = %d", rc));
-        }
 
         cifs_buf_release(pSMB);
 
@@ -2016,7 +2010,7 @@ int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon,
         data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
         rename_info = (struct set_file_rename *) data_offset;
         pSMB->MaxParameterCount = cpu_to_le16(2);
-        pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */
+        pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */
         pSMB->SetupCount = 1;
         pSMB->Reserved3 = 0;
         pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
@@ -2052,9 +2046,8 @@ int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon,
         rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
         cifs_stats_inc(&pTcon->num_t2renames);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Send error in Rename (by file handle) = %d", rc));
-        }
 
         cifs_buf_release(pSMB);
 
@@ -2211,9 +2204,8 @@ createSymLinkRetry:
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
         cifs_stats_inc(&tcon->num_symlinks);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc));
-        }
 
         if (pSMB)
                 cifs_buf_release(pSMB);
@@ -2299,9 +2291,8 @@ createHardLinkRetry:
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
         cifs_stats_inc(&tcon->num_hardlinks);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc));
-        }
 
         cifs_buf_release(pSMB);
         if (rc == -EAGAIN)
@@ -2370,9 +2361,9 @@ winCreateHardLinkRetry:
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
         cifs_stats_inc(&tcon->num_hardlinks);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Send error in hard link (NT rename) = %d", rc));
-        }
+
         cifs_buf_release(pSMB);
         if (rc == -EAGAIN)
                 goto winCreateHardLinkRetry;
@@ -2968,9 +2959,8 @@ setAclRetry:
         pSMB->ByteCount = cpu_to_le16(byte_count);
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Set POSIX ACL returned %d", rc));
-        }
 
 setACLerrorExit:
         cifs_buf_release(pSMB);
@@ -2982,7 +2972,7 @@ setACLerrorExit:
 /* BB fix tabs in this function FIXME BB */
 int
 CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
-               const int netfid, __u64 * pExtAttrBits, __u64 *pMask)
+               const int netfid, __u64 *pExtAttrBits, __u64 *pMask)
 {
         int rc = 0;
         struct smb_t2_qfi_req *pSMB = NULL;
@@ -3000,7 +2990,7 @@ GetExtAttrRetry:
         if (rc)
                 return rc;
 
-        params = 2 /* level */ +2 /* fid */;
+        params = 2 /* level */ + 2 /* fid */;
         pSMB->t2.TotalDataCount = 0;
         pSMB->t2.MaxParameterCount = cpu_to_le16(4);
         /* BB find exact max data count below from sess structure BB */
@@ -3071,7 +3061,7 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,
 {
         int rc = 0;
         int buf_type = 0;
-        QUERY_SEC_DESC_REQ * pSMB;
+        QUERY_SEC_DESC_REQ *pSMB;
         struct kvec iov[1];
 
         cFYI(1, ("GetCifsACL"));
@@ -3101,7 +3091,7 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,
         if (rc) {
                 cFYI(1, ("Send error in QuerySecDesc = %d", rc));
         } else {                /* decode response */
-                __le32 * parm;
+                __le32 *parm;
                 __u32 parm_len;
                 __u32 acl_len;
                 struct smb_com_ntransact_rsp *pSMBr;
@@ -3230,8 +3220,8 @@ int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
                         FILE_ALL_INFO *pFinfo,
                         const struct nls_table *nls_codepage, int remap)
 {
-        QUERY_INFORMATION_REQ * pSMB;
-        QUERY_INFORMATION_RSP * pSMBr;
+        QUERY_INFORMATION_REQ *pSMB;
+        QUERY_INFORMATION_RSP *pSMBr;
         int rc = 0;
         int bytes_returned;
         int name_len;
@@ -3263,9 +3253,11 @@ QInfRetry:
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
         if (rc) {
                 cFYI(1, ("Send error in QueryInfo = %d", rc));
-        } else if (pFinfo) {            /* decode response */
+        } else if (pFinfo) {
                 struct timespec ts;
                 __u32 time = le32_to_cpu(pSMBr->last_write_time);
+
+                /* decode response */
                 /* BB FIXME - add time zone adjustment BB */
                 memset(pFinfo, 0, sizeof(FILE_ALL_INFO));
                 ts.tv_nsec = 0;
@@ -3296,7 +3288,7 @@ QInfRetry:
 int
 CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
                  const unsigned char *searchName,
-                 FILE_ALL_INFO * pFindData,
+                 FILE_ALL_INFO *pFindData,
                  int legacy /* old style infolevel */,
                  const struct nls_table *nls_codepage, int remap)
 {
@@ -3371,10 +3363,12 @@ QPathInfoRetry:
                 else if (pFindData) {
                         int size;
                         __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
-                        if (legacy) /* we do not read the last field, EAsize,
-                                       fortunately since it varies by subdialect
-                                       and on Set vs. Get, is two bytes or 4
-                                       bytes depending but we don't care here */
+
+                        /* On legacy responses we do not read the last field,
+                        EAsize, fortunately since it varies by subdialect and
+                        also note it differs on Set vs. Get, ie two bytes or 4
+                        bytes depending but we don't care here */
+                        if (legacy)
                                 size = sizeof(FILE_INFO_STANDARD);
                         else
                                 size = sizeof(FILE_ALL_INFO);
@@ -3476,85 +3470,6 @@ UnixQPathInfoRetry:
         return rc;
 }
 
-#if 0  /* function unused at present */
-int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon,
-               const char *searchName, FILE_ALL_INFO * findData,
-               const struct nls_table *nls_codepage)
-{
-/* level 257 SMB_ */
-        TRANSACTION2_FFIRST_REQ *pSMB = NULL;
-        TRANSACTION2_FFIRST_RSP *pSMBr = NULL;
-        int rc = 0;
-        int bytes_returned;
-        int name_len;
-        __u16 params, byte_count;
-
-        cFYI(1, ("In FindUnique"));
-findUniqueRetry:
-        rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
-                      (void **) &pSMBr);
-        if (rc)
-                return rc;
-
-        if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
-                name_len =
-                    cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
-                                     PATH_MAX, nls_codepage);
-                name_len++;     /* trailing null */
-                name_len *= 2;
-        } else {        /* BB improve the check for buffer overruns BB */
-                name_len = strnlen(searchName, PATH_MAX);
-                name_len++;     /* trailing null */
-                strncpy(pSMB->FileName, searchName, name_len);
-        }
-
-        params = 12 + name_len /* includes null */ ;
-        pSMB->TotalDataCount = 0;       /* no EAs */
-        pSMB->MaxParameterCount = cpu_to_le16(2);
-        pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */
-        pSMB->MaxSetupCount = 0;
-        pSMB->Reserved = 0;
-        pSMB->Flags = 0;
-        pSMB->Timeout = 0;
-        pSMB->Reserved2 = 0;
-        pSMB->ParameterOffset = cpu_to_le16(
-         offsetof(struct smb_com_transaction2_ffirst_req, InformationLevel)-4);
-        pSMB->DataCount = 0;
-        pSMB->DataOffset = 0;
-        pSMB->SetupCount = 1;   /* one byte, no need to le convert */
-        pSMB->Reserved3 = 0;
-        pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST);
-        byte_count = params + 1 /* pad */ ;
-        pSMB->TotalParameterCount = cpu_to_le16(params);
-        pSMB->ParameterCount = pSMB->TotalParameterCount;
-        pSMB->SearchAttributes =
-            cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM |
-                        ATTR_DIRECTORY);
-        pSMB->SearchCount = cpu_to_le16(16);    /* BB increase */
-        pSMB->SearchFlags = cpu_to_le16(1);
-        pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO);
-        pSMB->SearchStorageType = 0;    /* BB what should we set this to? BB */
-        pSMB->hdr.smb_buf_length += byte_count;
-        pSMB->ByteCount = cpu_to_le16(byte_count);
-
-        rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
-                         (struct smb_hdr *) pSMBr, &bytes_returned, 0);
-
-        if (rc) {
-                cFYI(1, ("Send error in FindFileDirInfo = %d", rc));
-        } else {                /* decode response */
-                cifs_stats_inc(&tcon->num_ffirst);
-                /* BB fill in */
-        }
-
-        cifs_buf_release(pSMB);
-        if (rc == -EAGAIN)
-                goto findUniqueRetry;
-
-        return rc;
-}
-#endif /* end unused (temporarily) function */
-
 /* xid, tcon, searchName and codepage are input parms, rest are returned */
 int
 CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
@@ -3566,7 +3481,7 @@ CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
 /* level 257 SMB_ */
         TRANSACTION2_FFIRST_REQ *pSMB = NULL;
         TRANSACTION2_FFIRST_RSP *pSMBr = NULL;
-        T2_FFIRST_RSP_PARMS * parms;
+        T2_FFIRST_RSP_PARMS *parms;
         int rc = 0;
         int bytes_returned = 0;
         int name_len;
@@ -3697,7 +3612,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
 {
         TRANSACTION2_FNEXT_REQ *pSMB = NULL;
         TRANSACTION2_FNEXT_RSP *pSMBr = NULL;
-        T2_FNEXT_RSP_PARMS * parms;
+        T2_FNEXT_RSP_PARMS *parms;
         char *response_data;
         int rc = 0;
         int bytes_returned, name_len;
@@ -3836,9 +3751,9 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon,
         pSMB->FileID = searchHandle;
         pSMB->ByteCount = 0;
         rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
-        if (rc) {
+        if (rc)
                 cERROR(1, ("Send error in FindClose = %d", rc));
-        }
+
         cifs_stats_inc(&tcon->num_fclose);
 
         /* Since session is dead, search handle closed on server already */
@@ -3851,7 +3766,7 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon,
 int
 CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
                       const unsigned char *searchName,
-                      __u64 * inode_number,
+                      __u64 *inode_number,
                       const struct nls_table *nls_codepage, int remap)
 {
         int rc = 0;
@@ -4560,9 +4475,8 @@ SETFSUnixRetry:
                 cERROR(1, ("Send error in SETFSUnixInfo = %d", rc));
         } else {                /* decode response */
                 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
-                if (rc) {
+                if (rc)
                         rc = -EIO;      /* bad smb */
-                }
         }
         cifs_buf_release(pSMB);
 
@@ -4744,9 +4658,8 @@ SetEOFRetry:
         pSMB->ByteCount = cpu_to_le16(byte_count);
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("SetPathInfo (file size) returned %d", rc));
-        }
 
         cifs_buf_release(pSMB);
 
@@ -4897,9 +4810,8 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
         pSMB->ByteCount = cpu_to_le16(byte_count);
         memcpy(data_offset, data, sizeof(FILE_BASIC_INFO));
         rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc));
-        }
 
         /* Note: On -EAGAIN error only caller can retry on handle based calls
                 since file handle passed in no longer valid */
@@ -4975,9 +4887,8 @@ SetTimesRetry:
         pSMB->ByteCount = cpu_to_le16(byte_count);
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("SetPathInfo (times) returned %d", rc));
-        }
 
         cifs_buf_release(pSMB);
 
@@ -5027,9 +4938,8 @@ SetAttrLgcyRetry:
         pSMB->ByteCount = cpu_to_le16(name_len + 1);
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("Error in LegacySetAttr = %d", rc));
-        }
 
         cifs_buf_release(pSMB);
 
@@ -5138,9 +5048,8 @@ setPermsRetry:
         pSMB->ByteCount = cpu_to_le16(byte_count);
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("SetPathInfo (perms) returned %d", rc));
-        }
 
         if (pSMB)
                 cifs_buf_release(pSMB);
@@ -5615,9 +5524,8 @@ SetEARetry:
         pSMB->ByteCount = cpu_to_le16(byte_count);
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
-        if (rc) {
+        if (rc)
                 cFYI(1, ("SetPathInfo (EA) returned %d", rc));
-        }
 
         cifs_buf_release(pSMB);
 
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 65d0ba72e78f..8dbfa97cd18c 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1722,8 +1722,15 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
                            originally at mount time */
                         if ((saved_cap & CIFS_UNIX_POSIX_ACL_CAP) == 0)
                                 cap &= ~CIFS_UNIX_POSIX_ACL_CAP;
-                        if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0)
+                        if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) {
+                                if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP)
+                                        cERROR(1, ("POSIXPATH support change"));
                                 cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP;
+                        } else if ((cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) {
+                                cERROR(1, ("possible reconnect error"));
+                                cERROR(1,
+                                        ("server disabled POSIX path support"));
+                        }
                 }
 
                 cap &= CIFS_UNIX_CAP_MASK;
@@ -1753,9 +1760,8 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
                 if (sb && (CIFS_SB(sb)->rsize > 127 * 1024)) {
                         if ((cap & CIFS_UNIX_LARGE_READ_CAP) == 0) {
                                 CIFS_SB(sb)->rsize = 127 * 1024;
-#ifdef CONFIG_CIFS_DEBUG2
-                                cFYI(1, ("larger reads not supported by srv"));
-#endif
+                                cFYI(DBG2,
+                                        ("larger reads not supported by srv"));
                         }
                 }
 
@@ -1792,6 +1798,26 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
         }
 }
 
+static void
+convert_delimiter(char *path, char delim)
+{
+        int i;
+        char old_delim;
+
+        if (path == NULL)
+                return;
+
+        if (delim == '/') 
+                old_delim = '\\';
+        else
+                old_delim = '/';
+
+        for (i = 0; path[i] != '\0'; i++) {
+                if (path[i] == old_delim)
+                        path[i] = delim;
+        }
+}
+
 int
 cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
            char *mount_data, const char *devname)
@@ -2057,7 +2083,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                 cifs_sb->prepath = volume_info.prepath;
                 if (cifs_sb->prepath) {
                         cifs_sb->prepathlen = strlen(cifs_sb->prepath);
-                        cifs_sb->prepath[0] = CIFS_DIR_SEP(cifs_sb);
+                        /* we can not convert the / to \ in the path
+                        separators in the prefixpath yet because we do not
+                        know (until reset_cifs_unix_caps is called later)
+                        whether POSIX PATH CAP is available. We normalize
+                        the / to \ after reset_cifs_unix_caps is called */
                         volume_info.prepath = NULL;
                 } else
                         cifs_sb->prepathlen = 0;
@@ -2225,11 +2255,15 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                 else
                         tcon->unix_ext = 0; /* server does not support them */
 
+                /* convert forward to back slashes in prepath here if needed */
+                if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) == 0)
+                        convert_delimiter(cifs_sb->prepath,
+                                          CIFS_DIR_SEP(cifs_sb));
+
                 if ((tcon->unix_ext == 0) && (cifs_sb->rsize > (1024 * 127))) {
                         cifs_sb->rsize = 1024 * 127;
-#ifdef CONFIG_CIFS_DEBUG2
-                        cFYI(1, ("no very large read support, rsize now 127K"));
-#endif
+                        cFYI(DBG2,
+                                ("no very large read support, rsize now 127K"));
                 }
                 if (!(tcon->ses->capabilities & CAP_LARGE_WRITE_X))
                         cifs_sb->wsize = min(cifs_sb->wsize,
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 699ec1198409..4e83b47c4b34 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -3,7 +3,7 @@
  *
  *   vfs operations that deal with dentries
  *
- *   Copyright (C) International Business Machines  Corp., 2002,2007
+ *   Copyright (C) International Business Machines  Corp., 2002,2008
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   This library is free software; you can redistribute it and/or modify
@@ -111,16 +111,6 @@ cifs_bp_rename_retry:
         return full_path;
 }
 
-/* char * build_wildcard_path_from_dentry(struct dentry *direntry)
-{
-        if(full_path == NULL)
-                return full_path;
-
-        full_path[namelen] = '\\';
-        full_path[namelen+1] = '*';
-        full_path[namelen+2] = 0;
-BB remove above eight lines BB */
-
 /* Inode operations in similar order to how they appear in Linux file fs.h */
 
 int
@@ -171,9 +161,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
                         disposition = FILE_OVERWRITE_IF;
                 else if ((oflags & O_CREAT) == O_CREAT)
                         disposition = FILE_OPEN_IF;
-                else {
+                else
                         cFYI(1, ("Create flag not set in create function"));
-                }
         }
 
         /* BB add processing to set equivalent of mode - e.g. via CreateX with
@@ -367,7 +356,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
                 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
                         int oplock = 0;
                         u16 fileHandle;
-                        FILE_ALL_INFO * buf;
+                        FILE_ALL_INFO *buf;
 
                         cFYI(1, ("sfu compat create special file"));
 
@@ -534,9 +523,8 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
         int isValid = 1;
 
         if (direntry->d_inode) {
-                if (cifs_revalidate(direntry)) {
+                if (cifs_revalidate(direntry))
                         return 0;
-                }
         } else {
                 cFYI(1, ("neg dentry 0x%p name = %s",
                          direntry, direntry->d_name.name));
diff --git a/fs/cifs/dns_resolve.h b/fs/cifs/dns_resolve.h
index 073fdc3db419..966e9288930b 100644
--- a/fs/cifs/dns_resolve.h
+++ b/fs/cifs/dns_resolve.h
@@ -1,7 +1,7 @@
 /*
  *   fs/cifs/dns_resolve.h -- DNS Resolver upcall management for CIFS DFS
  *                            Handles host name to IP address resolution
- * 
+ *
  *   Copyright (c) International Business Machines  Corp., 2008
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
diff --git a/fs/cifs/fcntl.c b/fs/cifs/fcntl.c
index 995474c90885..7d1d5aa4c430 100644
--- a/fs/cifs/fcntl.c
+++ b/fs/cifs/fcntl.c
@@ -35,9 +35,8 @@ static __u32 convert_to_cifs_notify_flags(unsigned long fcntl_notify_flags)
 
         /* No way on Linux VFS to ask to monitor xattr
         changes (and no stream support either */
-        if (fcntl_notify_flags & DN_ACCESS) {
+        if (fcntl_notify_flags & DN_ACCESS)
                 cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
-        }
         if (fcntl_notify_flags & DN_MODIFY) {
                 /* What does this mean on directories? */
                 cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE |
@@ -47,9 +46,8 @@ static __u32 convert_to_cifs_notify_flags(unsigned long fcntl_notify_flags)
                 cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_CREATION |
                         FILE_NOTIFY_CHANGE_LAST_WRITE;
         }
-        if (fcntl_notify_flags & DN_DELETE) {
+        if (fcntl_notify_flags & DN_DELETE)
                 cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE;
-        }
         if (fcntl_notify_flags & DN_RENAME) {
                 /* BB review this - checking various server behaviors */
                 cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_DIR_NAME |
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 5f7c374ae89c..fa849c91d323 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -353,9 +353,9 @@ static int cifs_reopen_file(struct file *file, int can_flush)
         int disposition = FILE_OPEN;
         __u16 netfid;
 
-        if (file->private_data) {
+        if (file->private_data)
                 pCifsFile = (struct cifsFileInfo *)file->private_data;
-        } else
+        else
                 return -EBADF;
 
         xid = GetXid();
@@ -499,9 +499,8 @@ int cifs_close(struct inode *inode, struct file *file)
                                         the struct would be in each open file,
                                         but this should give enough time to
                                         clear the socket */
-#ifdef CONFIG_CIFS_DEBUG2
-                                        cFYI(1, ("close delay, write pending"));
-#endif /* DEBUG2 */
+                                        cFYI(DBG2,
+                                                ("close delay, write pending"));
                                         msleep(timeout);
                                         timeout *= 4;
                                 }
@@ -1423,9 +1422,8 @@ static int cifs_writepage(struct page *page, struct writeback_control *wbc)
         xid = GetXid();
 /* BB add check for wbc flags */
         page_cache_get(page);
-        if (!PageUptodate(page)) {
+        if (!PageUptodate(page))
                 cFYI(1, ("ppw - page not up to date"));
-        }
 
         /*
          * Set the "writeback" flag, and clear "dirty" in the radix tree.
@@ -1460,9 +1458,9 @@ static int cifs_commit_write(struct file *file, struct page *page,
         cFYI(1, ("commit write for page %p up to position %lld for %d",
                  page, position, to));
         spin_lock(&inode->i_lock);
-        if (position > inode->i_size) {
+        if (position > inode->i_size)
                 i_size_write(inode, position);
-        }
+
         spin_unlock(&inode->i_lock);
         if (!PageUptodate(page)) {
                 position =  ((loff_t)page->index << PAGE_CACHE_SHIFT) + offset;
@@ -1596,9 +1594,9 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data,
         }
         open_file = (struct cifsFileInfo *)file->private_data;
 
-        if ((file->f_flags & O_ACCMODE) == O_WRONLY) {
+        if ((file->f_flags & O_ACCMODE) == O_WRONLY)
                 cFYI(1, ("attempting read on write only file instance"));
-        }
+
         for (total_read = 0, current_offset = read_data;
              read_size > total_read;
              total_read += bytes_read, current_offset += bytes_read) {
@@ -1625,9 +1623,8 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data,
                                                 smb_read_data +
                                                 4 /* RFC1001 length field */ +
                                                 le16_to_cpu(pSMBr->DataOffset),
-                                                bytes_read)) {
+                                                bytes_read))
                                         rc = -EFAULT;
-                                }
 
                                 if (buf_type == CIFS_SMALL_BUFFER)
                                         cifs_small_buf_release(smb_read_data);
@@ -1814,9 +1811,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
         pTcon = cifs_sb->tcon;
 
         pagevec_init(&lru_pvec, 0);
-#ifdef CONFIG_CIFS_DEBUG2
-                cFYI(1, ("rpages: num pages %d", num_pages));
-#endif
+                cFYI(DBG2, ("rpages: num pages %d", num_pages));
         for (i = 0; i < num_pages; ) {
                 unsigned contig_pages;
                 struct page *tmp_page;
@@ -1849,10 +1844,8 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
                 /* Read size needs to be in multiples of one page */
                 read_size = min_t(const unsigned int, read_size,
                                   cifs_sb->rsize & PAGE_CACHE_MASK);
-#ifdef CONFIG_CIFS_DEBUG2
-                cFYI(1, ("rpages: read size 0x%x  contiguous pages %d",
+                cFYI(DBG2, ("rpages: read size 0x%x  contiguous pages %d",
                                 read_size, contig_pages));
-#endif
                 rc = -EAGAIN;
                 while (rc == -EAGAIN) {
                         if ((open_file->invalidHandle) &&
@@ -2026,7 +2019,7 @@ int is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file)
                 struct cifs_sb_info *cifs_sb;
 
                 cifs_sb = CIFS_SB(cifsInode->vfs_inode.i_sb);
-                if ( cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO ) {
+                if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
                         /* since no page cache to corrupt on directio
                         we can change size safely */
                         return 1;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index b1a4a65eaa08..24eb4d392155 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -29,6 +29,130 @@
 #include "cifs_debug.h"
 #include "cifs_fs_sb.h"
 
+
+static void cifs_set_ops(struct inode *inode)
+{
+        struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+
+        switch (inode->i_mode & S_IFMT) {
+        case S_IFREG:
+                inode->i_op = &cifs_file_inode_ops;
+                if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
+                        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+                                inode->i_fop = &cifs_file_direct_nobrl_ops;
+                        else
+                                inode->i_fop = &cifs_file_direct_ops;
+                } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+                        inode->i_fop = &cifs_file_nobrl_ops;
+                else { /* not direct, send byte range locks */
+                        inode->i_fop = &cifs_file_ops;
+                }
+
+
+                /* check if server can support readpages */
+                if (cifs_sb->tcon->ses->server->maxBuf <
+                                PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)
+                        inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
+                else
+                        inode->i_data.a_ops = &cifs_addr_ops;
+                break;
+        case S_IFDIR:
+                inode->i_op = &cifs_dir_inode_ops;
+                inode->i_fop = &cifs_dir_ops;
+                break;
+        case S_IFLNK:
+                inode->i_op = &cifs_symlink_inode_ops;
+                break;
+        default:
+                init_special_inode(inode, inode->i_mode, inode->i_rdev);
+                break;
+        }
+}
+
+static void cifs_unix_info_to_inode(struct inode *inode,
+                FILE_UNIX_BASIC_INFO *info, int force_uid_gid)
+{
+        struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+        struct cifsInodeInfo *cifsInfo = CIFS_I(inode);
+        __u64 num_of_bytes = le64_to_cpu(info->NumOfBytes);
+        __u64 end_of_file = le64_to_cpu(info->EndOfFile);
+
+        inode->i_atime = cifs_NTtimeToUnix(le64_to_cpu(info->LastAccessTime));
+        inode->i_mtime =
+                cifs_NTtimeToUnix(le64_to_cpu(info->LastModificationTime));
+        inode->i_ctime = cifs_NTtimeToUnix(le64_to_cpu(info->LastStatusChange));
+        inode->i_mode = le64_to_cpu(info->Permissions);
+
+        /*
+         * Since we set the inode type below we need to mask off
+         * to avoid strange results if bits set above.
+         */
+        inode->i_mode &= ~S_IFMT;
+        switch (le32_to_cpu(info->Type)) {
+        case UNIX_FILE:
+                inode->i_mode |= S_IFREG;
+                break;
+        case UNIX_SYMLINK:
+                inode->i_mode |= S_IFLNK;
+                break;
+        case UNIX_DIR:
+                inode->i_mode |= S_IFDIR;
+                break;
+        case UNIX_CHARDEV:
+                inode->i_mode |= S_IFCHR;
+                inode->i_rdev = MKDEV(le64_to_cpu(info->DevMajor),
+                                      le64_to_cpu(info->DevMinor) & MINORMASK);
+                break;
+        case UNIX_BLOCKDEV:
+                inode->i_mode |= S_IFBLK;
+                inode->i_rdev = MKDEV(le64_to_cpu(info->DevMajor),
+                                      le64_to_cpu(info->DevMinor) & MINORMASK);
+                break;
+        case UNIX_FIFO:
+                inode->i_mode |= S_IFIFO;
+                break;
+        case UNIX_SOCKET:
+                inode->i_mode |= S_IFSOCK;
+                break;
+        default:
+                /* safest to call it a file if we do not know */
+                inode->i_mode |= S_IFREG;
+                cFYI(1, ("unknown type %d", le32_to_cpu(info->Type)));
+                break;
+        }
+
+        if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) &&
+            !force_uid_gid)
+                inode->i_uid = cifs_sb->mnt_uid;
+        else
+                inode->i_uid = le64_to_cpu(info->Uid);
+
+        if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) &&
+            !force_uid_gid)
+                inode->i_gid = cifs_sb->mnt_gid;
+        else
+                inode->i_gid = le64_to_cpu(info->Gid);
+
+        inode->i_nlink = le64_to_cpu(info->Nlinks);
+
+        spin_lock(&inode->i_lock);
+        if (is_size_safe_to_change(cifsInfo, end_of_file)) {
+                /*
+                 * We can not safely change the file size here if the client
+                 * is writing to it due to potential races.
+                 */
+                i_size_write(inode, end_of_file);
+
+                /*
+                 * i_blocks is not related to (i_size / i_blksize),
+                 * but instead 512 byte (2**9) size is required for
+                 * calculating num blocks.
+                 */
+                inode->i_blocks = (512 - 1 + num_of_bytes) >> 9;
+        }
+        spin_unlock(&inode->i_lock);
+}
+
 int cifs_get_inode_info_unix(struct inode **pinode,
         const unsigned char *search_path, struct super_block *sb, int xid)
 {
@@ -74,7 +198,6 @@ int cifs_get_inode_info_unix(struct inode **pinode,
                 }
         } else {
                 struct cifsInodeInfo *cifsInfo;
-                __u32 type = le32_to_cpu(findData.Type);
                 __u64 num_of_bytes = le64_to_cpu(findData.NumOfBytes);
                 __u64 end_of_file = le64_to_cpu(findData.EndOfFile);
 
@@ -105,112 +228,16 @@ int cifs_get_inode_info_unix(struct inode **pinode,
                 /* this is ok to set on every inode revalidate */
                 atomic_set(&cifsInfo->inUse, 1);
 
-                inode->i_atime =
-                    cifs_NTtimeToUnix(le64_to_cpu(findData.LastAccessTime));
-                inode->i_mtime =
-                    cifs_NTtimeToUnix(le64_to_cpu
-                                (findData.LastModificationTime));
-                inode->i_ctime =
-                    cifs_NTtimeToUnix(le64_to_cpu(findData.LastStatusChange));
-                inode->i_mode = le64_to_cpu(findData.Permissions);
-                /* since we set the inode type below we need to mask off
-                   to avoid strange results if bits set above */
-                inode->i_mode &= ~S_IFMT;
-                if (type == UNIX_FILE) {
-                        inode->i_mode |= S_IFREG;
-                } else if (type == UNIX_SYMLINK) {
-                        inode->i_mode |= S_IFLNK;
-                } else if (type == UNIX_DIR) {
-                        inode->i_mode |= S_IFDIR;
-                } else if (type == UNIX_CHARDEV) {
-                        inode->i_mode |= S_IFCHR;
-                        inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor),
-                                le64_to_cpu(findData.DevMinor) & MINORMASK);
-                } else if (type == UNIX_BLOCKDEV) {
-                        inode->i_mode |= S_IFBLK;
-                        inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor),
-                                le64_to_cpu(findData.DevMinor) & MINORMASK);
-                } else if (type == UNIX_FIFO) {
-                        inode->i_mode |= S_IFIFO;
-                } else if (type == UNIX_SOCKET) {
-                        inode->i_mode |= S_IFSOCK;
-                } else {
-                        /* safest to call it a file if we do not know */
-                        inode->i_mode |= S_IFREG;
-                        cFYI(1, ("unknown type %d", type));
-                }
+                cifs_unix_info_to_inode(inode, &findData, 0);
 
-                if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID)
-                        inode->i_uid = cifs_sb->mnt_uid;
-                else
-                        inode->i_uid = le64_to_cpu(findData.Uid);
-
-                if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID)
-                        inode->i_gid = cifs_sb->mnt_gid;
-                else
-                        inode->i_gid = le64_to_cpu(findData.Gid);
-
-                inode->i_nlink = le64_to_cpu(findData.Nlinks);
-
-                spin_lock(&inode->i_lock);
-                if (is_size_safe_to_change(cifsInfo, end_of_file)) {
-                /* can not safely change the file size here if the
-                   client is writing to it due to potential races */
-                        i_size_write(inode, end_of_file);
-
-                /* blksize needs to be multiple of two. So safer to default to
-                blksize and blkbits set in superblock so 2**blkbits and blksize
-                will match rather than setting to:
-                (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/
-
-                /* This seems incredibly stupid but it turns out that i_blocks
-                   is not related to (i_size / i_blksize), instead 512 byte size
-                   is required for calculating num blocks */
-
-                /* 512 bytes (2**9) is the fake blocksize that must be used */
-                /* for this calculation */
-                        inode->i_blocks = (512 - 1 + num_of_bytes) >> 9;
-                }
-                spin_unlock(&inode->i_lock);
 
                 if (num_of_bytes < end_of_file)
                         cFYI(1, ("allocation size less than end of file"));
                 cFYI(1, ("Size %ld and blocks %llu",
                         (unsigned long) inode->i_size,
                         (unsigned long long)inode->i_blocks));
-                if (S_ISREG(inode->i_mode)) {
-                        cFYI(1, ("File inode"));
-                        inode->i_op = &cifs_file_inode_ops;
-                        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
-                                if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
-                                        inode->i_fop =
-                                                &cifs_file_direct_nobrl_ops;
-                                else
-                                        inode->i_fop = &cifs_file_direct_ops;
-                        } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
-                                inode->i_fop = &cifs_file_nobrl_ops;
-                        else /* not direct, send byte range locks */
-                                inode->i_fop = &cifs_file_ops;
-
-                        /* check if server can support readpages */
-                        if (pTcon->ses->server->maxBuf <
-                            PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)
-                                inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
-                        else
-                                inode->i_data.a_ops = &cifs_addr_ops;
-                } else if (S_ISDIR(inode->i_mode)) {
-                        cFYI(1, ("Directory inode"));
-                        inode->i_op = &cifs_dir_inode_ops;
-                        inode->i_fop = &cifs_dir_ops;
-                } else if (S_ISLNK(inode->i_mode)) {
-                        cFYI(1, ("Symbolic Link inode"));
-                        inode->i_op = &cifs_symlink_inode_ops;
-                /* tmp_inode->i_fop = */ /* do not need to set to anything */
-                } else {
-                        cFYI(1, ("Init special inode"));
-                        init_special_inode(inode, inode->i_mode,
-                                           inode->i_rdev);
-                }
+
+                cifs_set_ops(inode);
         }
         return rc;
 }
@@ -490,9 +517,9 @@ int cifs_get_inode_info(struct inode **pinode,
                         if (decode_sfu_inode(inode,
                                          le64_to_cpu(pfindData->EndOfFile),
                                          search_path,
-                                         cifs_sb, xid)) {
+                                         cifs_sb, xid))
                                 cFYI(1, ("Unrecognized sfu inode type"));
-                        }
+
                         cFYI(1, ("sfu mode 0%o", inode->i_mode));
                 } else {
                         inode->i_mode |= S_IFREG;
@@ -546,36 +573,7 @@ int cifs_get_inode_info(struct inode **pinode,
                         atomic_set(&cifsInfo->inUse, 1);
                 }
 
-                if (S_ISREG(inode->i_mode)) {
-                        cFYI(1, ("File inode"));
-                        inode->i_op = &cifs_file_inode_ops;
-                        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
-                                if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
-                                        inode->i_fop =
-                                                &cifs_file_direct_nobrl_ops;
-                                else
-                                        inode->i_fop = &cifs_file_direct_ops;
-                        } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
-                                inode->i_fop = &cifs_file_nobrl_ops;
-                        else /* not direct, send byte range locks */
-                                inode->i_fop = &cifs_file_ops;
-
-                        if (pTcon->ses->server->maxBuf <
-                             PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)
-                                inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
-                        else
-                                inode->i_data.a_ops = &cifs_addr_ops;
-                } else if (S_ISDIR(inode->i_mode)) {
-                        cFYI(1, ("Directory inode"));
-                        inode->i_op = &cifs_dir_inode_ops;
-                        inode->i_fop = &cifs_dir_ops;
-                } else if (S_ISLNK(inode->i_mode)) {
-                        cFYI(1, ("Symbolic Link inode"));
-                        inode->i_op = &cifs_symlink_inode_ops;
-                } else {
-                        init_special_inode(inode, inode->i_mode,
-                                           inode->i_rdev);
-                }
+                cifs_set_ops(inode);
         }
         kfree(buf);
         return rc;
@@ -792,17 +790,12 @@ psx_del_no_retry:
 }
 
 static void posix_fill_in_inode(struct inode *tmp_inode,
-        FILE_UNIX_BASIC_INFO *pData, int *pobject_type, int isNewInode)
+        FILE_UNIX_BASIC_INFO *pData, int isNewInode)
 {
+        struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode);
         loff_t local_size;
         struct timespec local_mtime;
 
-        struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode);
-        struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb);
-
-        __u32 type = le32_to_cpu(pData->Type);
-        __u64 num_of_bytes = le64_to_cpu(pData->NumOfBytes);
-        __u64 end_of_file = le64_to_cpu(pData->EndOfFile);
         cifsInfo->time = jiffies;
         atomic_inc(&cifsInfo->inUse);
 
@@ -810,115 +803,27 @@ static void posix_fill_in_inode(struct inode *tmp_inode,
         local_mtime = tmp_inode->i_mtime;
         local_size  = tmp_inode->i_size;
 
-        tmp_inode->i_atime =
-            cifs_NTtimeToUnix(le64_to_cpu(pData->LastAccessTime));
-        tmp_inode->i_mtime =
-            cifs_NTtimeToUnix(le64_to_cpu(pData->LastModificationTime));
-        tmp_inode->i_ctime =
-            cifs_NTtimeToUnix(le64_to_cpu(pData->LastStatusChange));
-
-        tmp_inode->i_mode = le64_to_cpu(pData->Permissions);
-        /* since we set the inode type below we need to mask off type
-           to avoid strange results if bits above were corrupt */
-        tmp_inode->i_mode &= ~S_IFMT;
-        if (type == UNIX_FILE) {
-                *pobject_type = DT_REG;
-                tmp_inode->i_mode |= S_IFREG;
-        } else if (type == UNIX_SYMLINK) {
-                *pobject_type = DT_LNK;
-                tmp_inode->i_mode |= S_IFLNK;
-        } else if (type == UNIX_DIR) {
-                *pobject_type = DT_DIR;
-                tmp_inode->i_mode |= S_IFDIR;
-        } else if (type == UNIX_CHARDEV) {
-                *pobject_type = DT_CHR;
-                tmp_inode->i_mode |= S_IFCHR;
-                tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor),
-                                le64_to_cpu(pData->DevMinor) & MINORMASK);
-        } else if (type == UNIX_BLOCKDEV) {
-                *pobject_type = DT_BLK;
-                tmp_inode->i_mode |= S_IFBLK;
-                tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor),
-                                le64_to_cpu(pData->DevMinor) & MINORMASK);
-        } else if (type == UNIX_FIFO) {
-                *pobject_type = DT_FIFO;
-                tmp_inode->i_mode |= S_IFIFO;
-        } else if (type == UNIX_SOCKET) {
-                *pobject_type = DT_SOCK;
-                tmp_inode->i_mode |= S_IFSOCK;
-        } else {
-                /* safest to just call it a file */
-                *pobject_type = DT_REG;
-                tmp_inode->i_mode |= S_IFREG;
-                cFYI(1, ("unknown inode type %d", type));
-        }
-
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("object type: %d", type));
-#endif
-        tmp_inode->i_uid = le64_to_cpu(pData->Uid);
-        tmp_inode->i_gid = le64_to_cpu(pData->Gid);
-        tmp_inode->i_nlink = le64_to_cpu(pData->Nlinks);
-
-        spin_lock(&tmp_inode->i_lock);
-        if (is_size_safe_to_change(cifsInfo, end_of_file)) {
-                /* can not safely change the file size here if the
-                client is writing to it due to potential races */
-                i_size_write(tmp_inode, end_of_file);
+        cifs_unix_info_to_inode(tmp_inode, pData, 1);
+        cifs_set_ops(tmp_inode);
 
-        /* 512 bytes (2**9) is the fake blocksize that must be used */
-        /* for this calculation, not the real blocksize */
-                tmp_inode->i_blocks = (512 - 1 + num_of_bytes) >> 9;
-        }
-        spin_unlock(&tmp_inode->i_lock);
-
-        if (S_ISREG(tmp_inode->i_mode)) {
-                cFYI(1, ("File inode"));
-                tmp_inode->i_op = &cifs_file_inode_ops;
-
-                if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
-                        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
-                                tmp_inode->i_fop = &cifs_file_direct_nobrl_ops;
-                        else
-                                tmp_inode->i_fop = &cifs_file_direct_ops;
+        if (!S_ISREG(tmp_inode->i_mode))
+                return;
 
-                } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
-                        tmp_inode->i_fop = &cifs_file_nobrl_ops;
-                else
-                        tmp_inode->i_fop = &cifs_file_ops;
-
-                if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) &&
-                   (cifs_sb->tcon->ses->server->maxBuf <
-                        PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE))
-                        tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
-                else
-                        tmp_inode->i_data.a_ops = &cifs_addr_ops;
-
-                if (isNewInode)
-                        return; /* No sense invalidating pages for new inode
-                                   since we we have not started caching
-                                   readahead file data yet */
+        /*
+         * No sense invalidating pages for new inode
+         * since we we have not started caching
+         * readahead file data yet.
+         */
+        if (isNewInode)
+                return;
 
-                if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
-                        (local_size == tmp_inode->i_size)) {
-                        cFYI(1, ("inode exists but unchanged"));
-                } else {
-                        /* file may have changed on server */
-                        cFYI(1, ("invalidate inode, readdir detected change"));
-                        invalidate_remote_inode(tmp_inode);
-                }
-        } else if (S_ISDIR(tmp_inode->i_mode)) {
-                cFYI(1, ("Directory inode"));
-                tmp_inode->i_op = &cifs_dir_inode_ops;
-                tmp_inode->i_fop = &cifs_dir_ops;
-        } else if (S_ISLNK(tmp_inode->i_mode)) {
-                cFYI(1, ("Symbolic Link inode"));
-                tmp_inode->i_op = &cifs_symlink_inode_ops;
-/* tmp_inode->i_fop = *//* do not need to set to anything */
+        if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
+                (local_size == tmp_inode->i_size)) {
+                cFYI(1, ("inode exists but unchanged"));
         } else {
-                cFYI(1, ("Special inode"));
-                init_special_inode(tmp_inode, tmp_inode->i_mode,
-                                   tmp_inode->i_rdev);
+                /* file may have changed on server */
+                cFYI(1, ("invalidate inode, readdir detected change"));
+                invalidate_remote_inode(tmp_inode);
         }
 }
 
@@ -968,7 +873,6 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
                         cFYI(1, ("posix mkdir returned 0x%x", rc));
                         d_drop(direntry);
                 } else {
-                        int obj_type;
                         if (pInfo->Type == cpu_to_le32(-1)) {
                                 /* no return info, go query for it */
                                 kfree(pInfo);
@@ -1004,7 +908,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
                         /* we already checked in POSIXCreate whether
                            frame was long enough */
                         posix_fill_in_inode(direntry->d_inode,
-                                        pInfo, &obj_type, 1 /* NewInode */);
+                                        pInfo, 1 /* NewInode */);
 #ifdef CONFIG_CIFS_DEBUG2
                         cFYI(1, ("instantiated dentry %p %s to inode %p",
                                 direntry, direntry->d_name.name, newinode));
@@ -1214,9 +1118,8 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry,
                 } /* if we can not get memory just leave rc as EEXIST */
         }
 
-        if (rc) {
+        if (rc)
                 cFYI(1, ("rename rc %d", rc));
-        }
 
         if ((rc == -EIO) || (rc == -EEXIST)) {
                 int oplock = FALSE;
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index d24fe6880a04..5c792df13d62 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -30,7 +30,7 @@
 
 #define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2)
 
-int cifs_ioctl (struct inode *inode, struct file *filep,
+int cifs_ioctl(struct inode *inode, struct file *filep,
                 unsigned int command, unsigned long arg)
 {
         int rc = -ENOTTY; /* strange error - but the precedent */
diff --git a/fs/cifs/md4.c b/fs/cifs/md4.c
index a2415c1a14db..a725c2609d67 100644
--- a/fs/cifs/md4.c
+++ b/fs/cifs/md4.c
@@ -56,7 +56,7 @@ lshift(__u32 x, int s)
 
 /* this applies md4 to 64 byte chunks */
 static void
-mdfour64(__u32 * M, __u32 * A, __u32 *B, __u32 * C, __u32 *D)
+mdfour64(__u32 *M, __u32 *A, __u32 *B, __u32 *C, __u32 *D)
 {
         int j;
         __u32 AA, BB, CC, DD;
@@ -137,7 +137,7 @@ mdfour64(__u32 * M, __u32 * A, __u32 *B, __u32 * C, __u32 *D)
 }
 
 static void
-copy64(__u32 * M, unsigned char *in)
+copy64(__u32 *M, unsigned char *in)
 {
         int i;
 
diff --git a/fs/cifs/md5.c b/fs/cifs/md5.c
index f13f96d42fcf..462bbfefd4b6 100644
--- a/fs/cifs/md5.c
+++ b/fs/cifs/md5.c
@@ -161,7 +161,7 @@ MD5Final(unsigned char digest[16], struct MD5Context *ctx)
 
 /* This is the central step in the MD5 algorithm. */
 #define MD5STEP(f, w, x, y, z, data, s) \
-        ( w += f(x, y, z) + data,  w = w<<s | w>>(32-s),  w += x )
+        (w += f(x, y, z) + data,  w = w<<s | w>>(32-s),  w += x)
 
 /*
  * The core of the MD5 algorithm, this alters an existing MD5 hash to
@@ -302,9 +302,8 @@ hmac_md5_init_limK_to_64(const unsigned char *key, int key_len,
         int i;
 
         /* if key is longer than 64 bytes truncate it */
-        if (key_len > 64) {
+        if (key_len > 64)
                 key_len = 64;
-        }
 
         /* start out by storing key in pads */
         memset(ctx->k_ipad, 0, sizeof(ctx->k_ipad));
@@ -359,9 +358,9 @@ hmac_md5(unsigned char key[16], unsigned char *data, int data_len,
 {
         struct HMACMD5Context ctx;
         hmac_md5_init_limK_to_64(key, 16, &ctx);
-        if (data_len != 0) {
+        if (data_len != 0)
                 hmac_md5_update(data, data_len, &ctx);
-        }
+
         hmac_md5_final(digest, &ctx);
 }
 #endif
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 15546c2354c5..2a42d9fedbb2 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -1,7 +1,7 @@
 /*
  *   fs/cifs/misc.c
  *
- *   Copyright (C) International Business Machines  Corp., 2002,2007
+ *   Copyright (C) International Business Machines  Corp., 2002,2008
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   This library is free software; you can redistribute it and/or modify
@@ -320,9 +320,9 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ ,
                 if (treeCon->ses) {
                         if (treeCon->ses->capabilities & CAP_UNICODE)
                                 buffer->Flags2 |= SMBFLG2_UNICODE;
-                        if (treeCon->ses->capabilities & CAP_STATUS32) {
+                        if (treeCon->ses->capabilities & CAP_STATUS32)
                                 buffer->Flags2 |= SMBFLG2_ERR_STATUS;
-                        }
+
                         /* Uid is not converted */
                         buffer->Uid = treeCon->ses->Suid;
                         buffer->Mid = GetNextMid(treeCon->ses->server);
@@ -610,7 +610,8 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length)
 
         buffer = (unsigned char *) smb_buf;
         for (i = 0, j = 0; i < smb_buf_length; i++, j++) {
-                if (i % 8 == 0) {       /* have reached the beginning of line */
+                if (i % 8 == 0) {
+                        /* have reached the beginning of line */
                         printk(KERN_DEBUG "| ");
                         j = 0;
                 }
@@ -621,7 +622,8 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length)
                 else
                         debug_line[1 + (2 * j)] = '_';
 
-                if (i % 8 == 7) { /* reached end of line, time to print ascii */
+                if (i % 8 == 7) {
+                        /* reached end of line, time to print ascii */
                         debug_line[16] = 0;
                         printk(" | %s\n", debug_line);
                 }
@@ -631,7 +633,7 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length)
                 debug_line[2 * j] = ' ';
                 debug_line[1 + (2 * j)] = ' ';
         }
-        printk( " | %s\n", debug_line);
+        printk(" | %s\n", debug_line);
         return;
 }
 
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index 646e1f06941b..3b5a5ce882b6 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -1,7 +1,7 @@
 /*
  *   fs/cifs/netmisc.c
  *
- *   Copyright (c) International Business Machines  Corp., 2002
+ *   Copyright (c) International Business Machines  Corp., 2002,2008
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   Error mapping routines from Samba libsmb/errormap.c
@@ -150,9 +150,7 @@ static int canonicalize_unc(char *cp)
                 if (cp[i] == '\\')
                         break;
                 if (cp[i] == '/') {
-#ifdef CONFIG_CIFS_DEBUG2
-                        cFYI(1, ("change slash to backslash in malformed UNC"));
-#endif
+                        cFYI(DBG2, ("change slash to \\ in malformed UNC"));
                         cp[i] = '\\';
                         return 1;
                 }
@@ -178,9 +176,7 @@ cifs_inet_pton(int address_family, char *cp, void *dst)
         } else if (address_family == AF_INET6) {
                 ret = in6_pton(cp, -1 /* len */, dst , '\\', NULL);
         }
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("address conversion returned %d for %s", ret, cp));
-#endif
+        cFYI(DBG2, ("address conversion returned %d for %s", ret, cp));
         if (ret > 0)
                 ret = 1;
         return ret;
@@ -253,7 +249,8 @@ static const struct {
         ERRDOS, 87, NT_STATUS_INVALID_PARAMETER_MIX}, {
         ERRHRD, ERRgeneral, NT_STATUS_INVALID_QUOTA_LOWER}, {
         ERRHRD, ERRgeneral, NT_STATUS_DISK_CORRUPT_ERROR}, {
-        ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_INVALID}, {   /* mapping changed since shell does lookup on * and expects file not found */
+         /* mapping changed since shell does lookup on * expects FileNotFound */
+        ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_INVALID}, {
         ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_NOT_FOUND}, {
         ERRDOS, ERRalreadyexists, NT_STATUS_OBJECT_NAME_COLLISION}, {
         ERRHRD, ERRgeneral, NT_STATUS_HANDLE_NOT_WAITABLE}, {
@@ -820,7 +817,8 @@ map_smb_to_linux_error(struct smb_hdr *smb, int logErr)
         /* old style errors */
 
         /* DOS class smb error codes - map DOS */
-        if (smberrclass == ERRDOS) {  /* 1 byte field no need to byte reverse */
+        if (smberrclass == ERRDOS) {
+                /* 1 byte field no need to byte reverse */
                 for (i = 0;
                      i <
                      sizeof(mapping_table_ERRDOS) /
@@ -834,7 +832,8 @@ map_smb_to_linux_error(struct smb_hdr *smb, int logErr)
                         }
                         /* else try next error mapping one to see if match */
                 }
-        } else if (smberrclass == ERRSRV) {   /* server class of error codes */
+        } else if (smberrclass == ERRSRV) {
+                /* server class of error codes */
                 for (i = 0;
                      i <
                      sizeof(mapping_table_ERRSRV) /
@@ -922,8 +921,8 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time)
 {
         struct timespec ts;
         int sec, min, days, month, year;
-        SMB_TIME * st = (SMB_TIME *)&time;
-        SMB_DATE * sd = (SMB_DATE *)&date;
+        SMB_TIME *st = (SMB_TIME *)&time;
+        SMB_DATE *sd = (SMB_DATE *)&date;
 
         cFYI(1, ("date %d time %d", date, time));
 
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 0f22def4bdff..32b445edc882 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -3,7 +3,7 @@
  *
  *   Directory search handling
  *
- *   Copyright (C) International Business Machines  Corp., 2004, 2007
+ *   Copyright (C) International Business Machines  Corp., 2004, 2008
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   This library is free software; you can redistribute it and/or modify
@@ -42,17 +42,18 @@ static void dump_cifs_file_struct(struct file *file, char *label)
                         cFYI(1, ("empty cifs private file data"));
                         return;
                 }
-                if (cf->invalidHandle) {
+                if (cf->invalidHandle)
                         cFYI(1, ("invalid handle"));
-                }
-                if (cf->srch_inf.endOfSearch) {
+                if (cf->srch_inf.endOfSearch)
                         cFYI(1, ("end of search"));
-                }
-                if (cf->srch_inf.emptyDir) {
+                if (cf->srch_inf.emptyDir)
                         cFYI(1, ("empty dir"));
-                }
         }
 }
+#else
+static inline void dump_cifs_file_struct(struct file *file, char *label)
+{
+}
 #endif /* DEBUG2 */
 
 /* Returns one if new inode created (which therefore needs to be hashed) */
@@ -150,7 +151,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
                       cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime));
         } else { /* legacy, OS2 and DOS style */
 /*              struct timespec ts;*/
-                FIND_FILE_STANDARD_INFO * pfindData =
+                FIND_FILE_STANDARD_INFO *pfindData =
                         (FIND_FILE_STANDARD_INFO *)buf;
 
                 tmp_inode->i_mtime = cnvrtDosUnixTm(
@@ -198,9 +199,8 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
         if (attr & ATTR_DIRECTORY) {
                 *pobject_type = DT_DIR;
                 /* override default perms since we do not lock dirs */
-                if (atomic_read(&cifsInfo->inUse) == 0) {
+                if (atomic_read(&cifsInfo->inUse) == 0)
                         tmp_inode->i_mode = cifs_sb->mnt_dir_mode;
-                }
                 tmp_inode->i_mode |= S_IFDIR;
         } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
                    (attr & ATTR_SYSTEM)) {
@@ -231,9 +231,8 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
         } /* could add code here - to validate if device or weird share type? */
 
         /* can not fill in nlink here as in qpathinfo version and Unx search */
-        if (atomic_read(&cifsInfo->inUse) == 0) {
+        if (atomic_read(&cifsInfo->inUse) == 0)
                 atomic_set(&cifsInfo->inUse, 1);
-        }
 
         spin_lock(&tmp_inode->i_lock);
         if (is_size_safe_to_change(cifsInfo, end_of_file)) {
@@ -461,9 +460,8 @@ static int initiate_cifs_search(const int xid, struct file *file)
 
         full_path = build_path_from_dentry(file->f_path.dentry);
 
-        if (full_path == NULL) {
+        if (full_path == NULL)
                 return -ENOMEM;
-        }
 
         cFYI(1, ("Full path: %s start at: %lld", full_path, file->f_pos));
 
@@ -471,9 +469,9 @@ ffirst_retry:
         /* test for Unix extensions */
         /* but now check for them on the share/mount not on the SMB session */
 /*      if (pTcon->ses->capabilities & CAP_UNIX) { */
-        if (pTcon->unix_ext) {
+        if (pTcon->unix_ext)
                 cifsFile->srch_inf.info_level = SMB_FIND_FILE_UNIX;
-        } else if ((pTcon->ses->capabilities &
+        else if ((pTcon->ses->capabilities &
                         (CAP_NT_SMBS | CAP_NT_FIND)) == 0) {
                 cifsFile->srch_inf.info_level = SMB_FIND_FILE_INFO_STANDARD;
         } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
@@ -514,10 +512,10 @@ static int cifs_unicode_bytelen(char *str)
 static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level)
 {
         char *new_entry;
-        FILE_DIRECTORY_INFO * pDirInfo = (FILE_DIRECTORY_INFO *)old_entry;
+        FILE_DIRECTORY_INFO *pDirInfo = (FILE_DIRECTORY_INFO *)old_entry;
 
         if (level == SMB_FIND_FILE_INFO_STANDARD) {
-                FIND_FILE_STANDARD_INFO * pfData;
+                FIND_FILE_STANDARD_INFO *pfData;
                 pfData = (FIND_FILE_STANDARD_INFO *)pDirInfo;
 
                 new_entry = old_entry + sizeof(FIND_FILE_STANDARD_INFO) +
@@ -553,7 +551,7 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile)
         int len = 0;
 
         if (cfile->srch_inf.info_level == SMB_FIND_FILE_UNIX) {
-                FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry;
+                FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry;
                 filename = &pFindData->FileName[0];
                 if (cfile->srch_inf.unicode) {
                         len = cifs_unicode_bytelen(filename);
@@ -562,30 +560,30 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile)
                         len = strnlen(filename, 5);
                 }
         } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_DIRECTORY_INFO) {
-                FILE_DIRECTORY_INFO * pFindData =
+                FILE_DIRECTORY_INFO *pFindData =
                         (FILE_DIRECTORY_INFO *)current_entry;
                 filename = &pFindData->FileName[0];
                 len = le32_to_cpu(pFindData->FileNameLength);
         } else if (cfile->srch_inf.info_level ==
                         SMB_FIND_FILE_FULL_DIRECTORY_INFO) {
-                FILE_FULL_DIRECTORY_INFO * pFindData =
+                FILE_FULL_DIRECTORY_INFO *pFindData =
                         (FILE_FULL_DIRECTORY_INFO *)current_entry;
                 filename = &pFindData->FileName[0];
                 len = le32_to_cpu(pFindData->FileNameLength);
         } else if (cfile->srch_inf.info_level ==
                         SMB_FIND_FILE_ID_FULL_DIR_INFO) {
-                SEARCH_ID_FULL_DIR_INFO * pFindData =
+                SEARCH_ID_FULL_DIR_INFO *pFindData =
                         (SEARCH_ID_FULL_DIR_INFO *)current_entry;
                 filename = &pFindData->FileName[0];
                 len = le32_to_cpu(pFindData->FileNameLength);
         } else if (cfile->srch_inf.info_level ==
                         SMB_FIND_FILE_BOTH_DIRECTORY_INFO) {
-                FILE_BOTH_DIRECTORY_INFO * pFindData =
+                FILE_BOTH_DIRECTORY_INFO *pFindData =
                         (FILE_BOTH_DIRECTORY_INFO *)current_entry;
                 filename = &pFindData->FileName[0];
                 len = le32_to_cpu(pFindData->FileNameLength);
         } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) {
-                FIND_FILE_STANDARD_INFO * pFindData =
+                FIND_FILE_STANDARD_INFO *pFindData =
                         (FIND_FILE_STANDARD_INFO *)current_entry;
                 filename = &pFindData->FileName[0];
                 len = pFindData->FileNameLength;
@@ -666,9 +664,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
         . and .. for the root of a drive and for those we need
         to start two entries earlier */
 
-#ifdef CONFIG_CIFS_DEBUG2
         dump_cifs_file_struct(file, "In fce ");
-#endif
         if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) &&
              is_dir_changed(file)) ||
            (index_to_find < first_entry_in_buffer)) {
@@ -718,7 +714,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
                 pos_in_buf = index_to_find - first_entry_in_buffer;
                 cFYI(1, ("found entry - pos_in_buf %d", pos_in_buf));
 
-                for (i=0; (i < (pos_in_buf)) && (current_entry != NULL); i++) {
+                for (i = 0; (i < (pos_in_buf)) && (current_entry != NULL); i++) {
                         /* go entry by entry figuring out which is first */
                         current_entry = nxt_dir_entry(current_entry, end_of_smb,
                                                 cifsFile->srch_inf.info_level);
@@ -793,7 +789,7 @@ static int cifs_get_name_from_search_buf(struct qstr *pqst,
                 filename = &pFindData->FileName[0];
                 len = le32_to_cpu(pFindData->FileNameLength);
         } else if (level == SMB_FIND_FILE_INFO_STANDARD) {
-                FIND_FILE_STANDARD_INFO * pFindData =
+                FIND_FILE_STANDARD_INFO *pFindData =
                         (FIND_FILE_STANDARD_INFO *)current_entry;
                 filename = &pFindData->FileName[0];
                 /* one byte length, no name conversion */
@@ -928,7 +924,7 @@ static int cifs_save_resume_key(const char *current_entry,
         level = cifsFile->srch_inf.info_level;
 
         if (level == SMB_FIND_FILE_UNIX) {
-                FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry;
+                FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry;
 
                 filename = &pFindData->FileName[0];
                 if (cifsFile->srch_inf.unicode) {
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index d2153abcba6d..ed150efbe27c 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -417,10 +417,6 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
 
                 calc_lanman_hash(ses, lnm_session_key);
                 ses->flags |= CIFS_SES_LANMAN;
-/* #ifdef CONFIG_CIFS_DEBUG2
-                cifs_dump_mem("cryptkey: ",ses->server->cryptKey,
-                        CIFS_SESS_KEY_SIZE);
-#endif */
                 memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_SESS_KEY_SIZE);
                 bcc_ptr += CIFS_SESS_KEY_SIZE;
 
diff --git a/fs/cifs/smbdes.c b/fs/cifs/smbdes.c
index cfa6d21fb4e8..04943c976f98 100644
--- a/fs/cifs/smbdes.c
+++ b/fs/cifs/smbdes.c
@@ -114,42 +114,42 @@ static uchar sbox[8][4][16] = {
         {{14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7},
          {0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8},
          {4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0},
-         {15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13}},
+         {15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13} },
 
         {{15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10},
          {3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5},
          {0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15},
-         {13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9}},
+         {13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9} },
 
         {{10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8},
          {13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1},
          {13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7},
-         {1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12}},
+         {1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12} },
 
         {{7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15},
          {13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9},
          {10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4},
-         {3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14}},
+         {3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14} },
 
         {{2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9},
          {14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6},
          {4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14},
-         {11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3}},
+         {11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3} },
 
         {{12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11},
          {10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8},
          {9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6},
-         {4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13}},
+         {4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13} },
 
         {{4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1},
          {13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6},
          {1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2},
-         {6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12}},
+         {6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12} },
 
         {{13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7},
          {1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2},
          {7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8},
-         {2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11}}
+         {2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11} }
 };
 
 static void
@@ -313,9 +313,8 @@ str_to_key(unsigned char *str, unsigned char *key)
         key[5] = ((str[4] & 0x1F) << 2) | (str[5] >> 6);
         key[6] = ((str[5] & 0x3F) << 1) | (str[6] >> 7);
         key[7] = str[6] & 0x7F;
-        for (i = 0; i < 8; i++) {
+        for (i = 0; i < 8; i++)
                 key[i] = (key[i] << 1);
-        }
 }
 
 static void
@@ -344,9 +343,8 @@ smbhash(unsigned char *out, unsigned char *in, unsigned char *key, int forw)
 
         dohash(outb, inb, keyb, forw);
 
-        for (i = 0; i < 8; i++) {
+        for (i = 0; i < 8; i++)
                 out[i] = 0;
-        }
 
         for (i = 0; i < 64; i++) {
                 if (outb[i])
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 50b623ad9320..3612d6c0a0bb 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -1,7 +1,7 @@
 /*
  *   fs/cifs/transport.c
  *
- *   Copyright (C) International Business Machines  Corp., 2002,2007
+ *   Copyright (C) International Business Machines  Corp., 2002,2008
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *   Jeremy Allison (jra@samba.org) 2006.
  *
@@ -358,9 +358,9 @@ static int allocate_mid(struct cifsSesInfo *ses, struct smb_hdr *in_buf,
         } else if (ses->status != CifsGood) {
                 /* check if SMB session is bad because we are setting it up */
                 if ((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) &&
-                        (in_buf->Command != SMB_COM_NEGOTIATE)) {
+                        (in_buf->Command != SMB_COM_NEGOTIATE))
                         return -EAGAIN;
-                } /* else ok - we are setting up session */
+                /* else ok - we are setting up session */
         }
         *ppmidQ = AllocMidQEntry(in_buf, ses);
         if (*ppmidQ == NULL)
@@ -437,9 +437,8 @@ SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
         iov[0].iov_len = in_buf->smb_buf_length + 4;
         flags |= CIFS_NO_RESP;
         rc = SendReceive2(xid, ses, iov, 1, &resp_buf_type, flags);
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("SendRcvNoR flags %d rc %d", flags, rc));
-#endif
+        cFYI(DBG2, ("SendRcvNoRsp flags %d rc %d", flags, rc));
+
         return rc;
 }
 
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index 54e8ef96cb79..8cd6a445b017 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -139,9 +139,9 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name,
         } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) == 0) {
                 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
                         goto set_ea_exit;
-                if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) {
+                if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0)
                         cFYI(1, ("attempt to set cifs inode metadata"));
-                }
+
                 ea_name += 5; /* skip past user. prefix */
                 rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value,
                         (__u16)value_size, cifs_sb->local_nls,
@@ -262,7 +262,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
                                 cifs_sb->mnt_cifs_flags &
                                         CIFS_MOUNT_MAP_SPECIAL_CHR);
 #ifdef CONFIG_CIFS_EXPERIMENTAL
-                else if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
+                else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
                         __u16 fid;
                         int oplock = FALSE;
                         struct cifs_ntsd *pacl = NULL;
@@ -303,11 +303,10 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
         } else if (strncmp(ea_name,
                   CIFS_XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) == 0) {
                 cFYI(1, ("Security xattr namespace not supported yet"));
-        } else {
+        } else
                 cFYI(1,
                     ("illegal xattr request %s (only user namespace supported)",
                         ea_name));
-        }
 
         /* We could add an additional check for streams ie
             if proc/fs/cifs/streamstoxattr is set then
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index d26e2826ba5b..e9602d85c11d 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -29,10 +29,6 @@
 
 #define DEBUGFS_MAGIC   0x64626720
 
-/* declared over in file.c */
-extern struct file_operations debugfs_file_operations;
-extern struct inode_operations debugfs_link_operations;
-
 static struct vfsmount *debugfs_mount;
 static int debugfs_mount_count;
 
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index dc74b186145d..6df1debdccce 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -263,52 +263,102 @@ out:
         return 0;
 }
 
-/* This function must zero any hole we create */
+/**
+ * ecryptfs_prepare_write
+ * @file: The eCryptfs file
+ * @page: The eCryptfs page
+ * @from: The start byte from which we will write
+ * @to: The end byte to which we will write
+ *
+ * This function must zero any hole we create
+ *
+ * Returns zero on success; non-zero otherwise
+ */
 static int ecryptfs_prepare_write(struct file *file, struct page *page,
                                   unsigned from, unsigned to)
 {
-        int rc = 0;
         loff_t prev_page_end_size;
+        int rc = 0;
 
         if (!PageUptodate(page)) {
-                rc = ecryptfs_read_lower_page_segment(page, page->index, 0,
-                                                      PAGE_CACHE_SIZE,
-                                                      page->mapping->host);
-                if (rc) {
-                        printk(KERN_ERR "%s: Error attemping to read lower "
-                               "page segment; rc = [%d]\n", __FUNCTION__, rc);
-                        ClearPageUptodate(page);
-                        goto out;
-                } else
+                struct ecryptfs_crypt_stat *crypt_stat =
+                        &ecryptfs_inode_to_private(
+                                file->f_path.dentry->d_inode)->crypt_stat;
+
+                if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)
+                    || (crypt_stat->flags & ECRYPTFS_NEW_FILE)) {
+                        rc = ecryptfs_read_lower_page_segment(
+                                page, page->index, 0, PAGE_CACHE_SIZE,
+                                page->mapping->host);
+                        if (rc) {
+                                printk(KERN_ERR "%s: Error attemping to read "
+                                       "lower page segment; rc = [%d]\n",
+                                       __FUNCTION__, rc);
+                                ClearPageUptodate(page);
+                                goto out;
+                        } else
+                                SetPageUptodate(page);
+                } else if (crypt_stat->flags & ECRYPTFS_VIEW_AS_ENCRYPTED) {
+                        if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR) {
+                                rc = ecryptfs_copy_up_encrypted_with_header(
+                                        page, crypt_stat);
+                                if (rc) {
+                                        printk(KERN_ERR "%s: Error attempting "
+                                               "to copy the encrypted content "
+                                               "from the lower file whilst "
+                                               "inserting the metadata from "
+                                               "the xattr into the header; rc "
+                                               "= [%d]\n", __FUNCTION__, rc);
+                                        ClearPageUptodate(page);
+                                        goto out;
+                                }
+                                SetPageUptodate(page);
+                        } else {
+                                rc = ecryptfs_read_lower_page_segment(
+                                        page, page->index, 0, PAGE_CACHE_SIZE,
+                                        page->mapping->host);
+                                if (rc) {
+                                        printk(KERN_ERR "%s: Error reading "
+                                               "page; rc = [%d]\n",
+                                               __FUNCTION__, rc);
+                                        ClearPageUptodate(page);
+                                        goto out;
+                                }
+                                SetPageUptodate(page);
+                        }
+                } else {
+                        rc = ecryptfs_decrypt_page(page);
+                        if (rc) {
+                                printk(KERN_ERR "%s: Error decrypting page "
+                                       "at index [%ld]; rc = [%d]\n",
+                                       __FUNCTION__, page->index, rc);
+                                ClearPageUptodate(page);
+                                goto out;
+                        }
                         SetPageUptodate(page);
+                }
         }
-
         prev_page_end_size = ((loff_t)page->index << PAGE_CACHE_SHIFT);
-
-        /*
-         * If creating a page or more of holes, zero them out via truncate.
-         * Note, this will increase i_size.
-         */
+        /* If creating a page or more of holes, zero them out via truncate.
+         * Note, this will increase i_size. */
         if (page->index != 0) {
                 if (prev_page_end_size > i_size_read(page->mapping->host)) {
                         rc = ecryptfs_truncate(file->f_path.dentry,
                                                prev_page_end_size);
                         if (rc) {
-                                printk(KERN_ERR "Error on attempt to "
+                                printk(KERN_ERR "%s: Error on attempt to "
                                        "truncate to (higher) offset [%lld];"
-                                       " rc = [%d]\n", prev_page_end_size, rc);
+                                       " rc = [%d]\n", __FUNCTION__,
+                                       prev_page_end_size, rc);
                                 goto out;
                         }
                 }
         }
-        /*
-         * Writing to a new page, and creating a small hole from start of page?
-         * Zero it out.
-         */
-        if ((i_size_read(page->mapping->host) == prev_page_end_size) &&
-            (from != 0)) {
+        /* Writing to a new page, and creating a small hole from start
+         * of page?  Zero it out. */
+        if ((i_size_read(page->mapping->host) == prev_page_end_size)
+            && (from != 0))
                 zero_user(page, 0, PAGE_CACHE_SIZE);
-        }
 out:
         return rc;
 }
diff --git a/fs/exec.c b/fs/exec.c
index a44b142fb460..54a0a557b678 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -173,8 +173,15 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
                 return NULL;
 
         if (write) {
-                struct rlimit *rlim = current->signal->rlim;
                 unsigned long size = bprm->vma->vm_end - bprm->vma->vm_start;
+                struct rlimit *rlim;
+
+                /*
+                 * We've historically supported up to 32 pages (ARG_MAX)
+                 * of argument strings even with small stacks
+                 */
+                if (size <= ARG_MAX)
+                        return page;
 
                 /*
                  * Limit to 1/4-th the stack size for the argv+env strings.
@@ -183,6 +190,7 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
                  *  - the program will have a reasonable amount of stack left
                  *    to work from.
                  */
+                rlim = current->signal->rlim;
                 if (size > rlim[RLIMIT_STACK].rlim_cur / 4) {
                         put_page(page);
                         return NULL;
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 18769cc32377..ad5360664082 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -806,8 +806,8 @@ static match_table_t tokens = {
         {Opt_quota, "quota"},
         {Opt_usrquota, "usrquota"},
         {Opt_barrier, "barrier=%u"},
-        {Opt_err, NULL},
         {Opt_resize, "resize"},
+        {Opt_err, NULL},
 };
 
 static ext3_fsblk_t get_sb_block(void **data)
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 33888bb58144..2c23bade9aa6 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -46,7 +46,7 @@ const struct file_operations ext4_dir_operations = {
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = ext4_compat_ioctl,
 #endif
-        .fsync          = ext4_sync_file,       /* BKL held */
+        .fsync          = ext4_sync_file,
         .release        = ext4_release_dir,
 };
 
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index bc7081f1fbe8..9ae6e67090cd 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -148,6 +148,7 @@ static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode,
 {
         struct ext4_inode_info *ei = EXT4_I(inode);
         ext4_fsblk_t bg_start;
+        ext4_fsblk_t last_block;
         ext4_grpblk_t colour;
         int depth;
 
@@ -169,8 +170,13 @@ static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode,
         /* OK. use inode's group */
         bg_start = (ei->i_block_group * EXT4_BLOCKS_PER_GROUP(inode->i_sb)) +
                 le32_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_first_data_block);
-        colour = (current->pid % 16) *
+        last_block = ext4_blocks_count(EXT4_SB(inode->i_sb)->s_es) - 1;
+
+        if (bg_start + EXT4_BLOCKS_PER_GROUP(inode->i_sb) <= last_block)
+                colour = (current->pid % 16) *
                         (EXT4_BLOCKS_PER_GROUP(inode->i_sb) / 16);
+        else
+                colour = (current->pid % 16) * ((last_block - bg_start) / 16);
         return bg_start + colour + block;
 }
 
@@ -349,7 +355,7 @@ static void ext4_ext_show_leaf(struct inode *inode, struct ext4_ext_path *path)
 #define ext4_ext_show_leaf(inode,path)
 #endif
 
-static void ext4_ext_drop_refs(struct ext4_ext_path *path)
+void ext4_ext_drop_refs(struct ext4_ext_path *path)
 {
         int depth = path->p_depth;
         int i;
@@ -2168,6 +2174,10 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
         newblock = iblock - ee_block + ext_pblock(ex);
         ex2 = ex;
 
+        err = ext4_ext_get_access(handle, inode, path + depth);
+        if (err)
+                goto out;
+
         /* ex1: ee_block to iblock - 1 : uninitialized */
         if (iblock > ee_block) {
                 ex1 = ex;
@@ -2200,16 +2210,20 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
                 newdepth = ext_depth(inode);
                 if (newdepth != depth) {
                         depth = newdepth;
-                        path = ext4_ext_find_extent(inode, iblock, NULL);
+                        ext4_ext_drop_refs(path);
+                        path = ext4_ext_find_extent(inode, iblock, path);
                         if (IS_ERR(path)) {
                                 err = PTR_ERR(path);
-                                path = NULL;
                                 goto out;
                         }
                         eh = path[depth].p_hdr;
                         ex = path[depth].p_ext;
                         if (ex2 != &newex)
                                 ex2 = ex;
+
+                        err = ext4_ext_get_access(handle, inode, path + depth);
+                        if (err)
+                                goto out;
                 }
                 allocated = max_blocks;
         }
@@ -2230,9 +2244,6 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
         ex2->ee_len = cpu_to_le16(allocated);
         if (ex2 != ex)
                 goto insert;
-        err = ext4_ext_get_access(handle, inode, path + depth);
-        if (err)
-                goto out;
         /*
          * New (initialized) extent starts from the first block
          * in the current extent. i.e., ex2 == ex
@@ -2276,9 +2287,22 @@ out:
 }
 
 /*
+ * Block allocation/map/preallocation routine for extents based files
+ *
+ *
  * Need to be called with
  * down_read(&EXT4_I(inode)->i_data_sem) if not allocating file system block
  * (ie, create is zero). Otherwise down_write(&EXT4_I(inode)->i_data_sem)
+ *
+ * return > 0, number of of blocks already mapped/allocated
+ *          if create == 0 and these are pre-allocated blocks
+ *              buffer head is unmapped
+ *          otherwise blocks are mapped
+ *
+ * return = 0, if plain look up failed (blocks have not been allocated)
+ *          buffer head is unmapped
+ *
+ * return < 0, error case.
  */
 int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
                         ext4_lblk_t iblock,
@@ -2623,7 +2647,7 @@ long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len)
          * modify 1 super block, 1 block bitmap and 1 group descriptor.
          */
         credits = EXT4_DATA_TRANS_BLOCKS(inode->i_sb) + 3;
-        down_write((&EXT4_I(inode)->i_data_sem));
+        mutex_lock(&inode->i_mutex);
 retry:
         while (ret >= 0 && ret < max_blocks) {
                 block = block + ret;
@@ -2634,16 +2658,17 @@ retry:
                         break;
                 }
 
-                ret = ext4_ext_get_blocks(handle, inode, block,
+                ret = ext4_get_blocks_wrap(handle, inode, block,
                                           max_blocks, &map_bh,
                                           EXT4_CREATE_UNINITIALIZED_EXT, 0);
-                WARN_ON(ret <= 0);
                 if (ret <= 0) {
-                        ext4_error(inode->i_sb, "ext4_fallocate",
-                                    "ext4_ext_get_blocks returned error: "
-                                    "inode#%lu, block=%u, max_blocks=%lu",
+#ifdef EXT4FS_DEBUG
+                        WARN_ON(ret <= 0);
+                        printk(KERN_ERR "%s: ext4_ext_get_blocks "
+                                    "returned error inode#%lu, block=%u, "
+                                    "max_blocks=%lu", __func__,
                                     inode->i_ino, block, max_blocks);
-                        ret = -EIO;
+#endif
                         ext4_mark_inode_dirty(handle, inode);
                         ret2 = ext4_journal_stop(handle);
                         break;
@@ -2680,7 +2705,6 @@ retry:
         if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
                 goto retry;
 
-        up_write((&EXT4_I(inode)->i_data_sem));
         /*
          * Time to update the file size.
          * Update only when preallocation was requested beyond the file size.
@@ -2692,21 +2716,18 @@ retry:
                          * if no error, we assume preallocation succeeded
                          * completely
                          */
-                        mutex_lock(&inode->i_mutex);
                         i_size_write(inode, offset + len);
                         EXT4_I(inode)->i_disksize = i_size_read(inode);
-                        mutex_unlock(&inode->i_mutex);
                 } else if (ret < 0 && nblocks) {
                         /* Handle partial allocation scenario */
                         loff_t newsize;
 
-                        mutex_lock(&inode->i_mutex);
                         newsize  = (nblocks << blkbits) + i_size_read(inode);
                         i_size_write(inode, EXT4_BLOCK_ALIGN(newsize, blkbits));
                         EXT4_I(inode)->i_disksize = i_size_read(inode);
-                        mutex_unlock(&inode->i_mutex);
                 }
         }
 
+        mutex_unlock(&inode->i_mutex);
         return ret > 0 ? ret2 : ret;
 }
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index da18a74b966a..8036b9b5376b 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -702,7 +702,12 @@ got:
         ei->i_dir_start_lookup = 0;
         ei->i_disksize = 0;
 
-        ei->i_flags = EXT4_I(dir)->i_flags & ~EXT4_INDEX_FL;
+        /*
+         * Don't inherit extent flag from directory. We set extent flag on
+         * newly created directory and file only if -o extent mount option is
+         * specified
+         */
+        ei->i_flags = EXT4_I(dir)->i_flags & ~(EXT4_INDEX_FL|EXT4_EXTENTS_FL);
         if (S_ISLNK(mode))
                 ei->i_flags &= ~(EXT4_IMMUTABLE_FL|EXT4_APPEND_FL);
         /* dirsync only applies to directories */
@@ -745,12 +750,15 @@ got:
                 goto fail_free_drop;
         }
         if (test_opt(sb, EXTENTS)) {
-                EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL;
-                ext4_ext_tree_init(handle, inode);
-                err = ext4_update_incompat_feature(handle, sb,
-                                                EXT4_FEATURE_INCOMPAT_EXTENTS);
-                if (err)
-                        goto fail;
+                /* set extent flag only for directory and file */
+                if (S_ISDIR(mode) || S_ISREG(mode)) {
+                        EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL;
+                        ext4_ext_tree_init(handle, inode);
+                        err = ext4_update_incompat_feature(handle, sb,
+                                        EXT4_FEATURE_INCOMPAT_EXTENTS);
+                        if (err)
+                                goto fail;
+                }
         }
 
         ext4_debug("allocating inode %lu\n", inode->i_ino);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 7dd9b50d5ebc..945cbf6cb1fc 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -403,6 +403,7 @@ static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind)
         __le32 *start = ind->bh ? (__le32*) ind->bh->b_data : ei->i_data;
         __le32 *p;
         ext4_fsblk_t bg_start;
+        ext4_fsblk_t last_block;
         ext4_grpblk_t colour;
 
         /* Try to find previous block */
@@ -420,8 +421,13 @@ static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind)
          * into the same cylinder group then.
          */
         bg_start = ext4_group_first_block_no(inode->i_sb, ei->i_block_group);
-        colour = (current->pid % 16) *
+        last_block = ext4_blocks_count(EXT4_SB(inode->i_sb)->s_es) - 1;
+
+        if (bg_start + EXT4_BLOCKS_PER_GROUP(inode->i_sb) <= last_block)
+                colour = (current->pid % 16) *
                         (EXT4_BLOCKS_PER_GROUP(inode->i_sb) / 16);
+        else
+                colour = (current->pid % 16) * ((last_block - bg_start) / 16);
         return bg_start + colour;
 }
 
@@ -768,7 +774,6 @@ err_out:
  *
  * `handle' can be NULL if create == 0.
  *
- * The BKL may not be held on entry here.  Be sure to take it early.
  * return > 0, # of blocks mapped or allocated.
  * return = 0, if plain lookup failed.
  * return < 0, error case.
@@ -903,11 +908,38 @@ out:
  */
 #define DIO_CREDITS 25
 
+
+/*
+ *
+ *
+ * ext4_ext4 get_block() wrapper function
+ * It will do a look up first, and returns if the blocks already mapped.
+ * Otherwise it takes the write lock of the i_data_sem and allocate blocks
+ * and store the allocated blocks in the result buffer head and mark it
+ * mapped.
+ *
+ * If file type is extents based, it will call ext4_ext_get_blocks(),
+ * Otherwise, call with ext4_get_blocks_handle() to handle indirect mapping
+ * based files
+ *
+ * On success, it returns the number of blocks being mapped or allocate.
+ * if create==0 and the blocks are pre-allocated and uninitialized block,
+ * the result buffer head is unmapped. If the create ==1, it will make sure
+ * the buffer head is mapped.
+ *
+ * It returns 0 if plain look up failed (blocks have not been allocated), in
+ * that casem, buffer head is unmapped
+ *
+ * It returns the error in case of allocation failure.
+ */
 int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
                         unsigned long max_blocks, struct buffer_head *bh,
                         int create, int extend_disksize)
 {
         int retval;
+
+        clear_buffer_mapped(bh);
+
         /*
          * Try to see if we can get  the block without requesting
          * for new file system block.
@@ -921,12 +953,26 @@ int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
                                 inode, block, max_blocks, bh, 0, 0);
         }
         up_read((&EXT4_I(inode)->i_data_sem));
-        if (!create || (retval > 0))
+
+        /* If it is only a block(s) look up */
+        if (!create)
+                return retval;
+
+        /*
+         * Returns if the blocks have already allocated
+         *
+         * Note that if blocks have been preallocated
+         * ext4_ext_get_block() returns th create = 0
+         * with buffer head unmapped.
+         */
+        if (retval > 0 && buffer_mapped(bh))
                 return retval;
 
         /*
-         * We need to allocate new blocks which will result
-         * in i_data update
+         * New blocks allocate and/or writing to uninitialized extent
+         * will possibly result in updating i_data, so we take
+         * the write lock of i_data_sem, and call get_blocks()
+         * with create == 1 flag.
          */
         down_write((&EXT4_I(inode)->i_data_sem));
         /*
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index dd0fcfcb35ce..ef97f19c2f9d 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -627,21 +627,19 @@ static ext4_fsblk_t ext4_grp_offs_to_block(struct super_block *sb,
         return block;
 }
 
+static inline void *mb_correct_addr_and_bit(int *bit, void *addr)
+{
 #if BITS_PER_LONG == 64
-#define mb_correct_addr_and_bit(bit, addr)              \
-{                                                       \
-        bit += ((unsigned long) addr & 7UL) << 3;       \
-        addr = (void *) ((unsigned long) addr & ~7UL);  \
-}
+        *bit += ((unsigned long) addr & 7UL) << 3;
+        addr = (void *) ((unsigned long) addr & ~7UL);
 #elif BITS_PER_LONG == 32
-#define mb_correct_addr_and_bit(bit, addr)              \
-{                                                       \
-        bit += ((unsigned long) addr & 3UL) << 3;       \
-        addr = (void *) ((unsigned long) addr & ~3UL);  \
-}
+        *bit += ((unsigned long) addr & 3UL) << 3;
+        addr = (void *) ((unsigned long) addr & ~3UL);
 #else
 #error "how many bits you are?!"
 #endif
+        return addr;
+}
 
 static inline int mb_test_bit(int bit, void *addr)
 {
@@ -649,34 +647,54 @@ static inline int mb_test_bit(int bit, void *addr)
          * ext4_test_bit on architecture like powerpc
          * needs unsigned long aligned address
          */
-        mb_correct_addr_and_bit(bit, addr);
+        addr = mb_correct_addr_and_bit(&bit, addr);
         return ext4_test_bit(bit, addr);
 }
 
 static inline void mb_set_bit(int bit, void *addr)
 {
-        mb_correct_addr_and_bit(bit, addr);
+        addr = mb_correct_addr_and_bit(&bit, addr);
         ext4_set_bit(bit, addr);
 }
 
 static inline void mb_set_bit_atomic(spinlock_t *lock, int bit, void *addr)
 {
-        mb_correct_addr_and_bit(bit, addr);
+        addr = mb_correct_addr_and_bit(&bit, addr);
         ext4_set_bit_atomic(lock, bit, addr);
 }
 
 static inline void mb_clear_bit(int bit, void *addr)
 {
-        mb_correct_addr_and_bit(bit, addr);
+        addr = mb_correct_addr_and_bit(&bit, addr);
         ext4_clear_bit(bit, addr);
 }
 
 static inline void mb_clear_bit_atomic(spinlock_t *lock, int bit, void *addr)
 {
-        mb_correct_addr_and_bit(bit, addr);
+        addr = mb_correct_addr_and_bit(&bit, addr);
         ext4_clear_bit_atomic(lock, bit, addr);
 }
 
+static inline int mb_find_next_zero_bit(void *addr, int max, int start)
+{
+        int fix = 0;
+        addr = mb_correct_addr_and_bit(&fix, addr);
+        max += fix;
+        start += fix;
+
+        return ext4_find_next_zero_bit(addr, max, start) - fix;
+}
+
+static inline int mb_find_next_bit(void *addr, int max, int start)
+{
+        int fix = 0;
+        addr = mb_correct_addr_and_bit(&fix, addr);
+        max += fix;
+        start += fix;
+
+        return ext4_find_next_bit(addr, max, start) - fix;
+}
+
 static void *mb_find_buddy(struct ext4_buddy *e4b, int order, int *max)
 {
         char *bb;
@@ -906,7 +924,7 @@ static void ext4_mb_mark_free_simple(struct super_block *sb,
         unsigned short chunk;
         unsigned short border;
 
-        BUG_ON(len >= EXT4_BLOCKS_PER_GROUP(sb));
+        BUG_ON(len > EXT4_BLOCKS_PER_GROUP(sb));
 
         border = 2 << sb->s_blocksize_bits;
 
@@ -946,12 +964,12 @@ static void ext4_mb_generate_buddy(struct super_block *sb,
 
         /* initialize buddy from bitmap which is aggregation
          * of on-disk bitmap and preallocations */
-        i = ext4_find_next_zero_bit(bitmap, max, 0);
+        i = mb_find_next_zero_bit(bitmap, max, 0);
         grp->bb_first_free = i;
         while (i < max) {
                 fragments++;
                 first = i;
-                i = ext4_find_next_bit(bitmap, max, i);
+                i = mb_find_next_bit(bitmap, max, i);
                 len = i - first;
                 free += len;
                 if (len > 1)
@@ -959,7 +977,7 @@ static void ext4_mb_generate_buddy(struct super_block *sb,
                 else
                         grp->bb_counters[0]++;
                 if (i < max)
-                        i = ext4_find_next_zero_bit(bitmap, max, i);
+                        i = mb_find_next_zero_bit(bitmap, max, i);
         }
         grp->bb_fragments = fragments;
 
@@ -967,6 +985,10 @@ static void ext4_mb_generate_buddy(struct super_block *sb,
                 ext4_error(sb, __FUNCTION__,
                         "EXT4-fs: group %lu: %u blocks in bitmap, %u in gd\n",
                         group, free, grp->bb_free);
+                /*
+                 * If we intent to continue, we consider group descritor
+                 * corrupt and update bb_free using bitmap value
+                 */
                 grp->bb_free = free;
         }
 
@@ -1778,7 +1800,7 @@ static void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac,
                 buddy = mb_find_buddy(e4b, i, &max);
                 BUG_ON(buddy == NULL);
 
-                k = ext4_find_next_zero_bit(buddy, max, 0);
+                k = mb_find_next_zero_bit(buddy, max, 0);
                 BUG_ON(k >= max);
 
                 ac->ac_found++;
@@ -1818,11 +1840,11 @@ static void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac,
         i = e4b->bd_info->bb_first_free;
 
         while (free && ac->ac_status == AC_STATUS_CONTINUE) {
-                i = ext4_find_next_zero_bit(bitmap,
+                i = mb_find_next_zero_bit(bitmap,
                                                 EXT4_BLOCKS_PER_GROUP(sb), i);
                 if (i >= EXT4_BLOCKS_PER_GROUP(sb)) {
                         /*
-                         * IF we corrupt the bitmap  we won't find any
+                         * IF we have corrupt bitmap, we won't find any
                          * free blocks even though group info says we
                          * we have free blocks
                          */
@@ -1838,6 +1860,12 @@ static void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac,
                         ext4_error(sb, __FUNCTION__, "%d free blocks as per "
                                         "group info. But got %d blocks\n",
                                         free, ex.fe_len);
+                        /*
+                         * The number of free blocks differs. This mostly
+                         * indicate that the bitmap is corrupt. So exit
+                         * without claiming the space.
+                         */
+                        break;
                 }
 
                 ext4_mb_measure_extent(ac, &ex, e4b);
@@ -3740,10 +3768,10 @@ static int ext4_mb_release_inode_pa(struct ext4_buddy *e4b,
         }
 
         while (bit < end) {
-                bit = ext4_find_next_zero_bit(bitmap_bh->b_data, end, bit);
+                bit = mb_find_next_zero_bit(bitmap_bh->b_data, end, bit);
                 if (bit >= end)
                         break;
-                next = ext4_find_next_bit(bitmap_bh->b_data, end, bit);
+                next = mb_find_next_bit(bitmap_bh->b_data, end, bit);
                 if (next > end)
                         next = end;
                 start = group * EXT4_BLOCKS_PER_GROUP(sb) + bit +
@@ -3771,6 +3799,10 @@ static int ext4_mb_release_inode_pa(struct ext4_buddy *e4b,
                         (unsigned long) pa->pa_len);
                 ext4_error(sb, __FUNCTION__, "free %u, pa_free %u\n",
                                                 free, pa->pa_free);
+                /*
+                 * pa is already deleted so we use the value obtained
+                 * from the bitmap and continue.
+                 */
         }
         atomic_add(free, &sbi->s_mb_discarded);
         if (ac)
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 8c6c685b9d22..5c1e27de7755 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -43,6 +43,7 @@ static int finish_range(handle_t *handle, struct inode *inode,
 
         if (IS_ERR(path)) {
                 retval = PTR_ERR(path);
+                path = NULL;
                 goto err_out;
         }
 
@@ -74,6 +75,10 @@ static int finish_range(handle_t *handle, struct inode *inode,
         }
         retval = ext4_ext_insert_extent(handle, inode, path, &newext);
 err_out:
+        if (path) {
+                ext4_ext_drop_refs(path);
+                kfree(path);
+        }
         lb->first_pblock = 0;
         return retval;
 }
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index a9347fb43bcc..28aa2ed4297e 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1804,12 +1804,8 @@ retry:
         inode->i_fop = &ext4_dir_operations;
         inode->i_size = EXT4_I(inode)->i_disksize = inode->i_sb->s_blocksize;
         dir_block = ext4_bread (handle, inode, 0, 1, &err);
-        if (!dir_block) {
-                ext4_dec_count(handle, inode); /* is this nlink == 0? */
-                ext4_mark_inode_dirty(handle, inode);
-                iput (inode);
-                goto out_stop;
-        }
+        if (!dir_block)
+                goto out_clear_inode;
         BUFFER_TRACE(dir_block, "get_write_access");
         ext4_journal_get_write_access(handle, dir_block);
         de = (struct ext4_dir_entry_2 *) dir_block->b_data;
@@ -1832,7 +1828,8 @@ retry:
         ext4_mark_inode_dirty(handle, inode);
         err = ext4_add_entry (handle, dentry, inode);
         if (err) {
-                inode->i_nlink = 0;
+out_clear_inode:
+                clear_nlink(inode);
                 ext4_mark_inode_dirty(handle, inode);
                 iput (inode);
                 goto out_stop;
@@ -2164,7 +2161,7 @@ static int ext4_unlink(struct inode * dir, struct dentry *dentry)
         dir->i_ctime = dir->i_mtime = ext4_current_time(dir);
         ext4_update_dx_flag(dir);
         ext4_mark_inode_dirty(handle, dir);
-        ext4_dec_count(handle, inode);
+        drop_nlink(inode);
         if (!inode->i_nlink)
                 ext4_orphan_add(handle, inode);
         inode->i_ctime = ext4_current_time(inode);
@@ -2214,7 +2211,7 @@ retry:
                 err = __page_symlink(inode, symname, l,
                                 mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS);
                 if (err) {
-                        ext4_dec_count(handle, inode);
+                        clear_nlink(inode);
                         ext4_mark_inode_dirty(handle, inode);
                         iput (inode);
                         goto out_stop;
@@ -2223,7 +2220,6 @@ retry:
                 inode->i_op = &ext4_fast_symlink_inode_operations;
                 memcpy((char*)&EXT4_I(inode)->i_data,symname,l);
                 inode->i_size = l-1;
-                EXT4_I(inode)->i_flags &= ~EXT4_EXTENTS_FL;
         }
         EXT4_I(inode)->i_disksize = inode->i_size;
         err = ext4_add_nondir(handle, dentry, inode);
@@ -2407,7 +2403,7 @@ static int ext4_rename (struct inode * old_dir, struct dentry *old_dentry,
                 ext4_dec_count(handle, old_dir);
                 if (new_inode) {
                         /* checked empty_dir above, can't have another parent,
-                         * ext3_dec_count() won't work for many-linked dirs */
+                         * ext4_dec_count() won't work for many-linked dirs */
                         new_inode->i_nlink = 0;
                 } else {
                         ext4_inc_count(handle, new_dir);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 9477a2bd6ff2..e29efa0f9d62 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1037,6 +1037,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
                 ext4_warning(sb, __FUNCTION__,
                              "multiple resizers run on filesystem!");
                 unlock_super(sb);
+                ext4_journal_stop(handle);
                 err = -EBUSY;
                 goto exit_put;
         }
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 038ed7436199..c6cbb6cd59b2 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -369,7 +369,7 @@ out:
 
 
 /**
- * int journal_restart() - restart a handle .
+ * int journal_restart() - restart a handle.
  * @handle:  handle to restart
  * @nblocks: nr credits requested
  *
@@ -844,8 +844,7 @@ out:
 }
 
 /**
- * int journal_get_undo_access() -  Notify intent to modify metadata with
- *     non-rewindable consequences
+ * int journal_get_undo_access() - Notify intent to modify metadata with non-rewindable consequences
  * @handle: transaction
  * @bh: buffer to undo
  * @credits: store the number of taken credits here (if not NULL)
@@ -921,12 +920,14 @@ out:
 }
 
 /**
- * int journal_dirty_data() -  mark a buffer as containing dirty data which
- *                             needs to be flushed before we can commit the
- *                             current transaction.
+ * int journal_dirty_data() - mark a buffer as containing dirty data to be flushed
  * @handle: transaction
  * @bh: bufferhead to mark
  *
+ * Description:
+ * Mark a buffer as containing dirty data which needs to be flushed before
+ * we can commit the current transaction.
+ *
  * The buffer is placed on the transaction's data list and is marked as
  * belonging to the transaction.
  *
@@ -1098,11 +1099,11 @@ no_journal:
 }
 
 /**
- * int journal_dirty_metadata() -  mark a buffer as containing dirty metadata
+ * int journal_dirty_metadata() - mark a buffer as containing dirty metadata
  * @handle: transaction to add buffer to.
  * @bh: buffer to mark
  *
- * mark dirty metadata which needs to be journaled as part of the current
+ * Mark dirty metadata which needs to be journaled as part of the current
  * transaction.
  *
  * The buffer is placed on the transaction's metadata list and is marked
diff --git a/fs/mpage.c b/fs/mpage.c
index 5df564366f36..235e4d3873a8 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -325,16 +325,12 @@ confused:
 }
 
 /**
- * mpage_readpages - populate an address space with some pages, and
- *                       start reads against them.
- *
+ * mpage_readpages - populate an address space with some pages & start reads against them
  * @mapping: the address_space
  * @pages: The address of a list_head which contains the target pages.  These
  *   pages have their ->index populated and are otherwise uninitialised.
- *
  *   The page at @pages->prev has the lowest file offset, and reads should be
  *   issued in @pages->prev to @pages->next order.
- *
  * @nr_pages: The number of pages at *@pages
  * @get_block: The filesystem's block mapper function.
  *
@@ -360,6 +356,7 @@ confused:
  * So an mpage read of the first 16 blocks of an ext2 file will cause I/O to be
  * submitted in the following order:
  *      12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16
+ *
  * because the indirect block has to be read to get the mappings of blocks
  * 13,14,15,16.  Obviously, this impacts performance.
  *
@@ -656,9 +653,7 @@ out:
 }
 
 /**
- * mpage_writepages - walk the list of dirty pages of the given
- * address space and writepage() all of them.
- * 
+ * mpage_writepages - walk the list of dirty pages of the given address space & writepage() all of them
  * @mapping: address space structure to write
  * @wbc: subtract the number of written pages from *@wbc->nr_to_write
  * @get_block: the filesystem's block mapper function.
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 82243127eebf..90383ed61005 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -257,7 +257,7 @@ static int ocfs2_readpage_inline(struct inode *inode, struct page *page)
         struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
         BUG_ON(!PageLocked(page));
-        BUG_ON(!OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL);
+        BUG_ON(!(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL));
 
         ret = ocfs2_read_block(osb, OCFS2_I(inode)->ip_blkno, &di_bh,
                                OCFS2_BH_CACHED, inode);
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index e280833ceb9a..8a1875848080 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -390,9 +390,8 @@ static int __ocfs2_delete_entry(handle_t *handle, struct inode *dir,
                                 goto bail;
                         }
                         if (pde)
-                                pde->rec_len =
-                                        cpu_to_le16(le16_to_cpu(pde->rec_len) +
-                                                    le16_to_cpu(de->rec_len));
+                                le16_add_cpu(&pde->rec_len,
+                                                le16_to_cpu(de->rec_len));
                         else
                                 de->inode = 0;
                         dir->i_version++;
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index a54d33d95ada..c92d1b19fc0b 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -1695,9 +1695,9 @@ send_response:
  * can periodically run all locks owned by this node
  * and re-assert across the cluster...
  */
-int dlm_do_assert_master(struct dlm_ctxt *dlm,
-                         struct dlm_lock_resource *res,
-                         void *nodemap, u32 flags)
+static int dlm_do_assert_master(struct dlm_ctxt *dlm,
+                                struct dlm_lock_resource *res,
+                                void *nodemap, u32 flags)
 {
         struct dlm_assert_master assert;
         int to, tmpret;
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 351130c9b734..f7794306b2bd 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -3042,7 +3042,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres,
         inode = ocfs2_lock_res_inode(lockres);
         mapping = inode->i_mapping;
 
-        if (S_ISREG(inode->i_mode))
+        if (!S_ISREG(inode->i_mode))
                 goto out;
 
         /*
@@ -3219,8 +3219,8 @@ static int ocfs2_dentry_convert_worker(struct ocfs2_lock_res *lockres,
         return UNBLOCK_CONTINUE_POST;
 }
 
-void ocfs2_process_blocked_lock(struct ocfs2_super *osb,
-                                struct ocfs2_lock_res *lockres)
+static void ocfs2_process_blocked_lock(struct ocfs2_super *osb,
+                                       struct ocfs2_lock_res *lockres)
 {
         int status;
         struct ocfs2_unblock_ctl ctl = {0, 0,};
@@ -3356,7 +3356,7 @@ static int ocfs2_downconvert_thread_should_wake(struct ocfs2_super *osb)
         return should_wake;
 }
 
-int ocfs2_downconvert_thread(void *arg)
+static int ocfs2_downconvert_thread(void *arg)
 {
         int status = 0;
         struct ocfs2_super *osb = arg;
diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h
index 1d5b0699d0a9..e3cf902404b4 100644
--- a/fs/ocfs2/dlmglue.h
+++ b/fs/ocfs2/dlmglue.h
@@ -109,8 +109,6 @@ void ocfs2_simple_drop_lockres(struct ocfs2_super *osb,
                                struct ocfs2_lock_res *lockres);
 
 /* for the downconvert thread */
-void ocfs2_process_blocked_lock(struct ocfs2_super *osb,
-                                struct ocfs2_lock_res *lockres);
 void ocfs2_wake_downconvert_thread(struct ocfs2_super *osb);
 
 struct ocfs2_dlm_debug *ocfs2_new_dlm_debug(void);
diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c
index c0efd9489fe8..0758daf64da0 100644
--- a/fs/ocfs2/heartbeat.c
+++ b/fs/ocfs2/heartbeat.c
@@ -49,10 +49,15 @@ static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map *map,
 static inline void __ocfs2_node_map_clear_bit(struct ocfs2_node_map *map,
                                               int bit);
 static inline int __ocfs2_node_map_is_empty(struct ocfs2_node_map *map);
-static void __ocfs2_node_map_dup(struct ocfs2_node_map *target,
-                                 struct ocfs2_node_map *from);
-static void __ocfs2_node_map_set(struct ocfs2_node_map *target,
-                                 struct ocfs2_node_map *from);
+
+/* special case -1 for now
+ * TODO: should *really* make sure the calling func never passes -1!!  */
+static void ocfs2_node_map_init(struct ocfs2_node_map *map)
+{
+        map->num_nodes = OCFS2_NODE_MAP_MAX_NODES;
+        memset(map->map, 0, BITS_TO_LONGS(OCFS2_NODE_MAP_MAX_NODES) *
+               sizeof(unsigned long));
+}
 
 void ocfs2_init_node_maps(struct ocfs2_super *osb)
 {
@@ -136,15 +141,6 @@ void ocfs2_stop_heartbeat(struct ocfs2_super *osb)
                 mlog_errno(ret);
 }
 
-/* special case -1 for now
- * TODO: should *really* make sure the calling func never passes -1!!  */
-void ocfs2_node_map_init(struct ocfs2_node_map *map)
-{
-        map->num_nodes = OCFS2_NODE_MAP_MAX_NODES;
-        memset(map->map, 0, BITS_TO_LONGS(OCFS2_NODE_MAP_MAX_NODES) *
-               sizeof(unsigned long));
-}
-
 static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map *map,
                                             int bit)
 {
@@ -216,6 +212,8 @@ int ocfs2_node_map_is_empty(struct ocfs2_super *osb,
         return ret;
 }
 
+#if 0
+
 static void __ocfs2_node_map_dup(struct ocfs2_node_map *target,
                                  struct ocfs2_node_map *from)
 {
@@ -254,6 +252,8 @@ static void __ocfs2_node_map_set(struct ocfs2_node_map *target,
                 target->map[i] = from->map[i];
 }
 
+#endif  /*  0  */
+
 /* Returns whether the recovery bit was actually set - it may not be
  * if a node is still marked as needing recovery */
 int ocfs2_recovery_map_set(struct ocfs2_super *osb,
diff --git a/fs/ocfs2/heartbeat.h b/fs/ocfs2/heartbeat.h
index 56859211888a..eac63aed7611 100644
--- a/fs/ocfs2/heartbeat.h
+++ b/fs/ocfs2/heartbeat.h
@@ -33,7 +33,6 @@ void ocfs2_stop_heartbeat(struct ocfs2_super *osb);
 
 /* node map functions - used to keep track of mounted and in-recovery
  * nodes. */
-void ocfs2_node_map_init(struct ocfs2_node_map *map);
 int ocfs2_node_map_is_empty(struct ocfs2_super *osb,
                             struct ocfs2_node_map *map);
 void ocfs2_node_map_set_bit(struct ocfs2_super *osb,
@@ -57,9 +56,5 @@ int ocfs2_recovery_map_set(struct ocfs2_super *osb,
                            int num);
 void ocfs2_recovery_map_clear(struct ocfs2_super *osb,
                               int num);
-/* returns 1 if bit is the only bit set in target, 0 otherwise */
-int ocfs2_node_map_is_only(struct ocfs2_super *osb,
-                           struct ocfs2_node_map *target,
-                           int bit);
 
 #endif /* OCFS2_HEARTBEAT_H */
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index add1ffdc5c6c..ab83fd562429 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -120,9 +120,6 @@ int ocfs2_load_local_alloc(struct ocfs2_super *osb)
 
         mlog_entry_void();
 
-        if (ocfs2_mount_local(osb))
-                goto bail;
-
         if (osb->local_alloc_size == 0)
                 goto bail;
 
@@ -588,8 +585,7 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
         while(bits_wanted--)
                 ocfs2_set_bit(start++, bitmap);
 
-        alloc->id1.bitmap1.i_used = cpu_to_le32(*num_bits +
-                                le32_to_cpu(alloc->id1.bitmap1.i_used));
+        le32_add_cpu(&alloc->id1.bitmap1.i_used, *num_bits);
 
         status = ocfs2_journal_dirty(handle, osb->local_alloc_bh);
         if (status < 0) {
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 96ee899d6502..91a1bd67ac1d 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -314,9 +314,12 @@ static int proc_pid_schedstat(struct task_struct *task, char *buffer)
 static int lstats_show_proc(struct seq_file *m, void *v)
 {
         int i;
-        struct task_struct *task = m->private;
-        seq_puts(m, "Latency Top version : v0.1\n");
+        struct inode *inode = m->private;
+        struct task_struct *task = get_proc_task(inode);
 
+        if (!task)
+                return -ESRCH;
+        seq_puts(m, "Latency Top version : v0.1\n");
         for (i = 0; i < 32; i++) {
                 if (task->latency_record[i].backtrace[0]) {
                         int q;
@@ -341,32 +344,24 @@ static int lstats_show_proc(struct seq_file *m, void *v)
                 }
 
         }
+        put_task_struct(task);
         return 0;
 }
 
 static int lstats_open(struct inode *inode, struct file *file)
 {
-        int ret;
-        struct seq_file *m;
-        struct task_struct *task = get_proc_task(inode);
-
-        ret = single_open(file, lstats_show_proc, NULL);
-        if (!ret) {
-                m = file->private_data;
-                m->private = task;
-        }
-        return ret;
+        return single_open(file, lstats_show_proc, inode);
 }
 
 static ssize_t lstats_write(struct file *file, const char __user *buf,
                             size_t count, loff_t *offs)
 {
-        struct seq_file *m;
-        struct task_struct *task;
+        struct task_struct *task = get_proc_task(file->f_dentry->d_inode);
 
-        m = file->private_data;
-        task = m->private;
+        if (!task)
+                return -ESRCH;
         clear_all_latency_tracing(task);
+        put_task_struct(task);
 
         return count;
 }
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 468805d40e2b..2d563979cb02 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -32,6 +32,7 @@
 #include <linux/interrupt.h>
 #include <linux/swap.h>
 #include <linux/slab.h>
+#include <linux/genhd.h>
 #include <linux/smp.h>
 #include <linux/signal.h>
 #include <linux/module.h>
@@ -377,7 +378,6 @@ static int stram_read_proc(char *page, char **start, off_t off,
 #endif
 
 #ifdef CONFIG_BLOCK
-extern const struct seq_operations partitions_op;
 static int partitions_open(struct inode *inode, struct file *file)
 {
         return seq_open(file, &partitions_op);
@@ -389,7 +389,6 @@ static const struct file_operations proc_partitions_operations = {
         .release        = seq_release,
 };
 
-extern const struct seq_operations diskstats_op;
 static int diskstats_open(struct inode *inode, struct file *file)
 {
         return seq_open(file, &diskstats_op);
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 6841452e0dea..393cc22c1717 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -2031,7 +2031,7 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
                 return -EXDEV;
         }
         /* We must not pack tails for quota files on reiserfs for quota IO to work */
-        if (!REISERFS_I(nd.path.dentry->d_inode)->i_flags & i_nopack_mask) {
+        if (!(REISERFS_I(nd.path.dentry->d_inode)->i_flags & i_nopack_mask)) {
                 reiserfs_warning(sb,
                                  "reiserfs: Quota file must have tail packing disabled.");
                 path_put(&nd.path);
diff --git a/fs/splice.c b/fs/splice.c
index 9b559ee711a8..0670c915cd35 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1669,6 +1669,13 @@ static int link_pipe(struct pipe_inode_info *ipipe,
                 i++;
         } while (len);
 
+        /*
+         * return EAGAIN if we have the potential of some data in the
+         * future, otherwise just return 0
+         */
+        if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK))
+                ret = -EAGAIN;
+
         inode_double_unlock(ipipe->inode, opipe->inode);
 
         /*
@@ -1709,11 +1716,8 @@ static long do_tee(struct file *in, struct file *out, size_t len,
                 ret = link_ipipe_prep(ipipe, flags);
                 if (!ret) {
                         ret = link_opipe_prep(opipe, flags);
-                        if (!ret) {
+                        if (!ret)
                                 ret = link_pipe(ipipe, opipe, len, flags);
-                                if (!ret && (flags & SPLICE_F_NONBLOCK))
-                                        ret = -EAGAIN;
-                        }
                 }
         }
 
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 21dfc9da235e..8831d9518790 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -171,7 +171,7 @@ xfs_parseargs(
         char                    *this_char, *value, *eov;
         int                     dsunit, dswidth, vol_dsunit, vol_dswidth;
         int                     iosize;
-        int                     ikeep = 0;
+        int                     dmapi_implies_ikeep = 1;
 
         args->flags |= XFSMNT_BARRIER;
         args->flags2 |= XFSMNT2_COMPAT_IOSIZE;
@@ -302,10 +302,10 @@ xfs_parseargs(
                 } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) {
                         args->flags &= ~XFSMNT_BARRIER;
                 } else if (!strcmp(this_char, MNTOPT_IKEEP)) {
-                        ikeep = 1;
-                        args->flags &= ~XFSMNT_IDELETE;
+                        args->flags |= XFSMNT_IKEEP;
                 } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) {
-                        args->flags |= XFSMNT_IDELETE;
+                        dmapi_implies_ikeep = 0;
+                        args->flags &= ~XFSMNT_IKEEP;
                 } else if (!strcmp(this_char, MNTOPT_LARGEIO)) {
                         args->flags2 &= ~XFSMNT2_COMPAT_IOSIZE;
                 } else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) {
@@ -410,8 +410,8 @@ xfs_parseargs(
          * Note that if "ikeep" or "noikeep" mount options are
          * supplied, then they are honored.
          */
-        if (!(args->flags & XFSMNT_DMAPI) && !ikeep)
-                args->flags |= XFSMNT_IDELETE;
+        if ((args->flags & XFSMNT_DMAPI) && dmapi_implies_ikeep)
+                args->flags |= XFSMNT_IKEEP;
 
         if ((args->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
                 if (dsunit) {
@@ -446,6 +446,7 @@ xfs_showargs(
 {
         static struct proc_xfs_info xfs_info_set[] = {
                 /* the few simple ones we can get from the mount struct */
+                { XFS_MOUNT_IKEEP,              "," MNTOPT_IKEEP },
                 { XFS_MOUNT_WSYNC,              "," MNTOPT_WSYNC },
                 { XFS_MOUNT_INO64,              "," MNTOPT_INO64 },
                 { XFS_MOUNT_NOALIGN,            "," MNTOPT_NOALIGN },
@@ -461,7 +462,6 @@ xfs_showargs(
         };
         static struct proc_xfs_info xfs_info_unset[] = {
                 /* the few simple ones we can get from the mount struct */
-                { XFS_MOUNT_IDELETE,            "," MNTOPT_IKEEP },
                 { XFS_MOUNT_COMPAT_IOSIZE,      "," MNTOPT_LARGEIO },
                 { XFS_MOUNT_BARRIER,            "," MNTOPT_NOBARRIER },
                 { XFS_MOUNT_SMALL_INUMS,        "," MNTOPT_64BITINODE },
diff --git a/fs/xfs/xfs_bit.c b/fs/xfs/xfs_bit.c
index 48228848f5ae..fab0b6d5a41b 100644
--- a/fs/xfs/xfs_bit.c
+++ b/fs/xfs/xfs_bit.c
@@ -25,6 +25,109 @@
  * XFS bit manipulation routines, used in non-realtime code.
  */
 
+#ifndef HAVE_ARCH_HIGHBIT
+/*
+ * Index of high bit number in byte, -1 for none set, 0..7 otherwise.
+ */
+static const char xfs_highbit[256] = {
+       -1, 0, 1, 1, 2, 2, 2, 2,                 /* 00 .. 07 */
+        3, 3, 3, 3, 3, 3, 3, 3,                 /* 08 .. 0f */
+        4, 4, 4, 4, 4, 4, 4, 4,                 /* 10 .. 17 */
+        4, 4, 4, 4, 4, 4, 4, 4,                 /* 18 .. 1f */
+        5, 5, 5, 5, 5, 5, 5, 5,                 /* 20 .. 27 */
+        5, 5, 5, 5, 5, 5, 5, 5,                 /* 28 .. 2f */
+        5, 5, 5, 5, 5, 5, 5, 5,                 /* 30 .. 37 */
+        5, 5, 5, 5, 5, 5, 5, 5,                 /* 38 .. 3f */
+        6, 6, 6, 6, 6, 6, 6, 6,                 /* 40 .. 47 */
+        6, 6, 6, 6, 6, 6, 6, 6,                 /* 48 .. 4f */
+        6, 6, 6, 6, 6, 6, 6, 6,                 /* 50 .. 57 */
+        6, 6, 6, 6, 6, 6, 6, 6,                 /* 58 .. 5f */
+        6, 6, 6, 6, 6, 6, 6, 6,                 /* 60 .. 67 */
+        6, 6, 6, 6, 6, 6, 6, 6,                 /* 68 .. 6f */
+        6, 6, 6, 6, 6, 6, 6, 6,                 /* 70 .. 77 */
+        6, 6, 6, 6, 6, 6, 6, 6,                 /* 78 .. 7f */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* 80 .. 87 */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* 88 .. 8f */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* 90 .. 97 */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* 98 .. 9f */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* a0 .. a7 */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* a8 .. af */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* b0 .. b7 */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* b8 .. bf */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* c0 .. c7 */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* c8 .. cf */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* d0 .. d7 */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* d8 .. df */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* e0 .. e7 */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* e8 .. ef */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* f0 .. f7 */
+        7, 7, 7, 7, 7, 7, 7, 7,                 /* f8 .. ff */
+};
+#endif
+
+/*
+ * xfs_highbit32: get high bit set out of 32-bit argument, -1 if none set.
+ */
+inline int
+xfs_highbit32(
+        __uint32_t      v)
+{
+#ifdef HAVE_ARCH_HIGHBIT
+        return highbit32(v);
+#else
+        int             i;
+
+        if (v & 0xffff0000)
+                if (v & 0xff000000)
+                        i = 24;
+                else
+                        i = 16;
+        else if (v & 0x0000ffff)
+                if (v & 0x0000ff00)
+                        i = 8;
+                else
+                        i = 0;
+        else
+                return -1;
+        return i + xfs_highbit[(v >> i) & 0xff];
+#endif
+}
+
+/*
+ * xfs_lowbit64: get low bit set out of 64-bit argument, -1 if none set.
+ */
+int
+xfs_lowbit64(
+        __uint64_t      v)
+{
+        __uint32_t      w = (__uint32_t)v;
+        int             n = 0;
+
+        if (w) {        /* lower bits */
+                n = ffs(w);
+        } else {        /* upper bits */
+                w = (__uint32_t)(v >> 32);
+                if (w && (n = ffs(w)))
+                        n += 32;
+        }
+        return n - 1;
+}
+
+/*
+ * xfs_highbit64: get high bit set out of 64-bit argument, -1 if none set.
+ */
+int
+xfs_highbit64(
+        __uint64_t      v)
+{
+        __uint32_t      h = (__uint32_t)(v >> 32);
+
+        if (h)
+                return xfs_highbit32(h) + 32;
+        return xfs_highbit32((__uint32_t)v);
+}
+
+
 /*
  * Return whether bitmap is empty.
  * Size is number of words in the bitmap, which is padded to word boundary
diff --git a/fs/xfs/xfs_bit.h b/fs/xfs/xfs_bit.h
index 325a007dec91..082641a9782c 100644
--- a/fs/xfs/xfs_bit.h
+++ b/fs/xfs/xfs_bit.h
@@ -47,30 +47,13 @@ static inline __uint64_t xfs_mask64lo(int n)
 }
 
 /* Get high bit set out of 32-bit argument, -1 if none set */
-static inline int xfs_highbit32(__uint32_t v)
-{
-        return fls(v) - 1;
-}
-
-/* Get high bit set out of 64-bit argument, -1 if none set */
-static inline int xfs_highbit64(__uint64_t v)
-{
-        return fls64(v) - 1;
-}
-
-/* Get low bit set out of 32-bit argument, -1 if none set */
-static inline int xfs_lowbit32(__uint32_t v)
-{
-        __uint32_t t = v;
-        return (t) ? find_first_bit((unsigned long *)&t, 32) : -1;
-}
+extern int xfs_highbit32(__uint32_t v);
 
 /* Get low bit set out of 64-bit argument, -1 if none set */
-static inline int xfs_lowbit64(__uint64_t v)
-{
-        __uint64_t t = v;
-        return (t) ? find_first_bit((unsigned long *)&t, 64) : -1;
-}
+extern int xfs_lowbit64(__uint64_t v);
+
+/* Get high bit set out of 64-bit argument, -1 if none set */
+extern int xfs_highbit64(__uint64_t);
 
 /* Return whether bitmap is empty (1 == empty) */
 extern int xfs_bitmap_empty(uint *map, uint size);
diff --git a/fs/xfs/xfs_clnt.h b/fs/xfs/xfs_clnt.h
index d16c1b971074..d5d1e60ee224 100644
--- a/fs/xfs/xfs_clnt.h
+++ b/fs/xfs/xfs_clnt.h
@@ -86,7 +86,7 @@ struct xfs_mount_args {
 #define XFSMNT_NOUUID           0x01000000      /* Ignore fs uuid */
 #define XFSMNT_DMAPI            0x02000000      /* enable dmapi/xdsm */
 #define XFSMNT_BARRIER          0x04000000      /* use write barriers */
-#define XFSMNT_IDELETE          0x08000000      /* inode cluster delete */
+#define XFSMNT_IKEEP            0x08000000      /* inode cluster delete */
 #define XFSMNT_SWALLOC          0x10000000      /* turn on stripe width
                                                  * allocation */
 #define XFSMNT_DIRSYNC          0x40000000      /* sync creat,link,unlink,rename
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index c5836b951d0c..db9d5fa600af 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -1053,7 +1053,7 @@ xfs_difree(
         /*
          * When an inode cluster is free, it becomes eligible for removal
          */
-        if ((mp->m_flags & XFS_MOUNT_IDELETE) &&
+        if (!(mp->m_flags & XFS_MOUNT_IKEEP) &&
             (rec.ir_freecount == XFS_IALLOC_INODES(mp))) {
 
                 *delete = 1;
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index f7c620ec6e69..1d8a4728d847 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -366,7 +366,7 @@ typedef struct xfs_mount {
 #define XFS_MOUNT_SMALL_INUMS   (1ULL << 15)    /* users wants 32bit inodes */
 #define XFS_MOUNT_NOUUID        (1ULL << 16)    /* ignore uuid during mount */
 #define XFS_MOUNT_BARRIER       (1ULL << 17)
-#define XFS_MOUNT_IDELETE       (1ULL << 18)    /* delete empty inode clusters*/
+#define XFS_MOUNT_IKEEP         (1ULL << 18)    /* keep empty inode clusters*/
 #define XFS_MOUNT_SWALLOC       (1ULL << 19)    /* turn on stripe width
                                                  * allocation */
 #define XFS_MOUNT_RDONLY        (1ULL << 20)    /* read-only fs */
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index ca83ddf72af4..47082c01872d 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -73,6 +73,18 @@ STATIC int xfs_rtmodify_summary(xfs_mount_t *, xfs_trans_t *, int,
  */
 
 /*
+ * xfs_lowbit32: get low bit set out of 32-bit argument, -1 if none set.
+ */
+STATIC int
+xfs_lowbit32(
+        __uint32_t      v)
+{
+        if (v)
+                return ffs(v) - 1;
+        return -1;
+}
+
+/*
  * Allocate space to the bitmap or summary file, and zero it, for growfs.
  */
 STATIC int                              /* error */
@@ -432,7 +444,6 @@ xfs_rtallocate_extent_near(
         }
         bbno = XFS_BITTOBLOCK(mp, bno);
         i = 0;
-        ASSERT(minlen != 0);
         log2len = xfs_highbit32(minlen);
         /*
          * Loop over all bitmap blocks (bbno + i is current block).
@@ -601,8 +612,6 @@ xfs_rtallocate_extent_size(
         xfs_suminfo_t   sum;            /* summary information for extents */
 
         ASSERT(minlen % prod == 0 && maxlen % prod == 0);
-        ASSERT(maxlen != 0);
-
         /*
          * Loop over all the levels starting with maxlen.
          * At each level, look at all the bitmap blocks, to see if there
@@ -660,9 +669,6 @@ xfs_rtallocate_extent_size(
                 *rtblock = NULLRTBLOCK;
                 return 0;
         }
-        ASSERT(minlen != 0);
-        ASSERT(maxlen != 0);
-
         /*
          * Loop over sizes, from maxlen down to minlen.
          * This time, when we do the allocations, allow smaller ones
@@ -1948,7 +1954,6 @@ xfs_growfs_rt(
                                   nsbp->sb_blocksize * nsbp->sb_rextsize);
                 nsbp->sb_rextents = nsbp->sb_rblocks;
                 do_div(nsbp->sb_rextents, nsbp->sb_rextsize);
-                ASSERT(nsbp->sb_rextents != 0);
                 nsbp->sb_rextslog = xfs_highbit32(nsbp->sb_rextents);
                 nrsumlevels = nmp->m_rsumlevels = nsbp->sb_rextslog + 1;
                 nrsumsize =
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index 413587f02155..7321304a69cc 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -281,8 +281,8 @@ xfs_start_flags(
                 mp->m_readio_log = mp->m_writeio_log = ap->iosizelog;
         }
 
-        if (ap->flags & XFSMNT_IDELETE)
-                mp->m_flags |= XFS_MOUNT_IDELETE;
+        if (ap->flags & XFSMNT_IKEEP)
+                mp->m_flags |= XFS_MOUNT_IKEEP;
         if (ap->flags & XFSMNT_DIRSYNC)
                 mp->m_flags |= XFS_MOUNT_DIRSYNC;
         if (ap->flags & XFSMNT_ATTR2)
diff --git a/include/asm-arm/arch-pxa/entry-macro.S b/include/asm-arm/arch-pxa/entry-macro.S
index b7e730851461..c145bb01bc8f 100644
--- a/include/asm-arm/arch-pxa/entry-macro.S
+++ b/include/asm-arm/arch-pxa/entry-macro.S
@@ -35,7 +35,7 @@
 1004:
                 mrc     p6, 0, \irqstat, c6, c0, 0      @ ICIP2
                 mrc     p6, 0, \irqnr, c7, c0, 0        @ ICMR2
-                ands    \irqstat, \irqstat, \irqnr
+                ands    \irqnr, \irqstat, \irqnr
                 beq     1003f
                 rsb     \irqstat, \irqnr, #0
                 and     \irqstat, \irqstat, \irqnr
diff --git a/include/asm-arm/arch-pxa/pxa-regs.h b/include/asm-arm/arch-pxa/pxa-regs.h
index ac175b4d10cb..2357a73340d4 100644
--- a/include/asm-arm/arch-pxa/pxa-regs.h
+++ b/include/asm-arm/arch-pxa/pxa-regs.h
@@ -520,6 +520,9 @@
 #define MCCR_FSRIE      (1 << 1)        /* FIFO Service Request Interrupt Enable */
 
 #define GCR             __REG(0x4050000C)  /* Global Control Register */
+#ifdef CONFIG_PXA3xx
+#define GCR_CLKBPB      (1 << 31)       /* Internal clock enable */
+#endif
 #define GCR_nDMAEN      (1 << 24)       /* non DMA Enable */
 #define GCR_CDONE_IE    (1 << 19)       /* Command Done Interrupt Enable */
 #define GCR_SDONE_IE    (1 << 18)       /* Status Done Interrupt Enable */
diff --git a/include/asm-arm/kexec.h b/include/asm-arm/kexec.h
index 1ee17b6951d0..47fe34d692da 100644
--- a/include/asm-arm/kexec.h
+++ b/include/asm-arm/kexec.h
@@ -8,7 +8,7 @@
 /* Maximum address we can reach in physical address mode */
 #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
 /* Maximum address we can use for the control code buffer */
-#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
+#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
 
 #define KEXEC_CONTROL_CODE_SIZE 4096
 
diff --git a/include/asm-arm/kprobes.h b/include/asm-arm/kprobes.h
index 4e7bd32288ae..c042194d3ab5 100644
--- a/include/asm-arm/kprobes.h
+++ b/include/asm-arm/kprobes.h
@@ -20,7 +20,6 @@
 #include <linux/ptrace.h>
 #include <linux/percpu.h>
 
-#define ARCH_SUPPORTS_KRETPROBES
 #define __ARCH_WANT_KPROBES_INSN_SLOT
 #define MAX_INSN_SIZE                   2
 #define MAX_STACK_SIZE                  64      /* 32 would probably be OK */
diff --git a/include/asm-arm/unaligned.h b/include/asm-arm/unaligned.h
index 8431f6eed5c6..5db03cf3b905 100644
--- a/include/asm-arm/unaligned.h
+++ b/include/asm-arm/unaligned.h
@@ -40,16 +40,16 @@ extern int __bug_unaligned_x(const void *ptr);
  */
 
 #define __get_unaligned_2_le(__p)                                       \
-        (__p[0] | __p[1] << 8)
+        (unsigned int)(__p[0] | __p[1] << 8)
 
 #define __get_unaligned_2_be(__p)                                       \
-        (__p[0] << 8 | __p[1])
+        (unsigned int)(__p[0] << 8 | __p[1])
 
 #define __get_unaligned_4_le(__p)                                       \
-        (__p[0] | __p[1] << 8 | __p[2] << 16 | __p[3] << 24)
+        (unsigned int)(__p[0] | __p[1] << 8 | __p[2] << 16 | __p[3] << 24)
 
 #define __get_unaligned_4_be(__p)                                       \
-        (__p[0] << 24 | __p[1] << 16 | __p[2] << 8 | __p[3])
+        (unsigned int)(__p[0] << 24 | __p[1] << 16 | __p[2] << 8 | __p[3])
 
 #define __get_unaligned_8_le(__p)                                       \
         ((unsigned long long)__get_unaligned_4_le((__p+4)) << 32 |      \
diff --git a/include/asm-avr32/pgtable.h b/include/asm-avr32/pgtable.h
index 018f6e2a0242..3ae7b548fce7 100644
--- a/include/asm-avr32/pgtable.h
+++ b/include/asm-avr32/pgtable.h
@@ -157,6 +157,7 @@ extern struct page *empty_zero_page;
 #define _PAGE_S(x)      _PAGE_NORMAL(x)
 
 #define PAGE_COPY       _PAGE_P(PAGE_WRITE | PAGE_READ)
+#define PAGE_SHARED     _PAGE_S(PAGE_WRITE | PAGE_READ)
 
 #ifndef __ASSEMBLY__
 /*
diff --git a/include/asm-blackfin/gptimers.h b/include/asm-blackfin/gptimers.h
index 8265ea473d5b..4f318f1fd2d9 100644
--- a/include/asm-blackfin/gptimers.h
+++ b/include/asm-blackfin/gptimers.h
@@ -1,12 +1,11 @@
 /*
- * include/asm/bf5xx_timers.h
- *
- * This file contains the major Data structures and constants
- * used for General Purpose Timer Implementation in BF5xx
+ * gptimers.h - Blackfin General Purpose Timer structs/defines/prototypes
  *
+ * Copyright (c) 2005-2008 Analog Devices Inc.
  * Copyright (C) 2005 John DeHority
  * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
  *
+ * Licensed under the GPL-2.
  */
 
 #ifndef _BLACKFIN_TIMERS_H_
diff --git a/include/asm-blackfin/irq.h b/include/asm-blackfin/irq.h
index 65480dab244e..86b67834354d 100644
--- a/include/asm-blackfin/irq.h
+++ b/include/asm-blackfin/irq.h
@@ -67,4 +67,6 @@ static __inline__ int irq_canonicalize(int irq)
 #define NO_IRQ ((unsigned int)(-1))
 #endif
 
+#define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1))
+
 #endif                          /* _BFIN_IRQ_H_ */
diff --git a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
index 15dbc21eed8b..c0694ecd2ecd 100644
--- a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
@@ -23,7 +23,6 @@
 #define UART_GET_DLH(uart)      bfin_read16(((uart)->port.membase + OFFSET_DLH))
 #define UART_GET_IIR(uart)      bfin_read16(((uart)->port.membase + OFFSET_IIR))
 #define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
-#define UART_GET_LSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LSR))
 #define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
 
 #define UART_PUT_CHAR(uart, v)   bfin_write16(((uart)->port.membase + OFFSET_THR), v)
@@ -58,6 +57,7 @@
 struct bfin_serial_port {
         struct uart_port port;
         unsigned int old_status;
+        unsigned int lsr;
 #ifdef CONFIG_SERIAL_BFIN_DMA
         int tx_done;
         int tx_count;
@@ -67,15 +67,31 @@ struct bfin_serial_port {
         unsigned int tx_dma_channel;
         unsigned int rx_dma_channel;
         struct work_struct tx_dma_workqueue;
-#else
-        struct work_struct cts_workqueue;
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
+        struct work_struct cts_workqueue;
         int cts_pin;
         int rts_pin;
 #endif
 };
 
+/* The hardware clears the LSR bits upon read, so we need to cache
+ * some of the more fun bits in software so they don't get lost
+ * when checking the LSR in other code paths (TX).
+ */
+static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart)
+{
+        unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR);
+        uart->lsr |= (lsr & (BI|FE|PE|OE));
+        return lsr | uart->lsr;
+}
+
+static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
+{
+        uart->lsr = 0;
+        bfin_write16(uart->port.membase + OFFSET_LSR, -1);
+}
+
 struct bfin_serial_port bfin_serial_ports[NR_PORTS];
 struct bfin_serial_res {
         unsigned long uart_base_addr;
diff --git a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
index 7871d4313f49..b6f513bee56e 100644
--- a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
@@ -23,7 +23,6 @@
 #define UART_GET_DLH(uart)      bfin_read16(((uart)->port.membase + OFFSET_DLH))
 #define UART_GET_IIR(uart)      bfin_read16(((uart)->port.membase + OFFSET_IIR))
 #define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
-#define UART_GET_LSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LSR))
 #define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
 
 #define UART_PUT_CHAR(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_THR),v)
@@ -46,6 +45,7 @@
 struct bfin_serial_port {
         struct uart_port        port;
         unsigned int            old_status;
+        unsigned int lsr;
 #ifdef CONFIG_SERIAL_BFIN_DMA
         int                     tx_done;
         int                     tx_count;
@@ -56,14 +56,34 @@ struct bfin_serial_port {
         unsigned int            rx_dma_channel;
         struct work_struct      tx_dma_workqueue;
 #else
-        struct work_struct      cts_workqueue;
+# if ANOMALY_05000230
+        unsigned int anomaly_threshold;
+# endif
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
+        struct work_struct      cts_workqueue;
         int                     cts_pin;
         int                     rts_pin;
 #endif
 };
 
+/* The hardware clears the LSR bits upon read, so we need to cache
+ * some of the more fun bits in software so they don't get lost
+ * when checking the LSR in other code paths (TX).
+ */
+static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart)
+{
+        unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR);
+        uart->lsr |= (lsr & (BI|FE|PE|OE));
+        return lsr | uart->lsr;
+}
+
+static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
+{
+        uart->lsr = 0;
+        bfin_write16(uart->port.membase + OFFSET_LSR, -1);
+}
+
 struct bfin_serial_port bfin_serial_ports[NR_PORTS];
 struct bfin_serial_res {
         unsigned long   uart_base_addr;
diff --git a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
index 86e45c379838..8fc672d31057 100644
--- a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
@@ -23,7 +23,6 @@
 #define UART_GET_DLH(uart)      bfin_read16(((uart)->port.membase + OFFSET_DLH))
 #define UART_GET_IIR(uart)      bfin_read16(((uart)->port.membase + OFFSET_IIR))
 #define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
-#define UART_GET_LSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LSR))
 #define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
 
 #define UART_PUT_CHAR(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_THR),v)
@@ -58,6 +57,7 @@
 struct bfin_serial_port {
         struct uart_port        port;
         unsigned int            old_status;
+        unsigned int lsr;
 #ifdef CONFIG_SERIAL_BFIN_DMA
         int                     tx_done;
         int                     tx_count;
@@ -67,15 +67,31 @@ struct bfin_serial_port {
         unsigned int            tx_dma_channel;
         unsigned int            rx_dma_channel;
         struct work_struct      tx_dma_workqueue;
-#else
-        struct work_struct      cts_workqueue;
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
+        struct work_struct      cts_workqueue;
         int             cts_pin;
         int             rts_pin;
 #endif
 };
 
+/* The hardware clears the LSR bits upon read, so we need to cache
+ * some of the more fun bits in software so they don't get lost
+ * when checking the LSR in other code paths (TX).
+ */
+static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart)
+{
+        unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR);
+        uart->lsr |= (lsr & (BI|FE|PE|OE));
+        return lsr | uart->lsr;
+}
+
+static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
+{
+        uart->lsr = 0;
+        bfin_write16(uart->port.membase + OFFSET_LSR, -1);
+}
+
 struct bfin_serial_port bfin_serial_ports[NR_PORTS];
 struct bfin_serial_res {
         unsigned long   uart_base_addr;
diff --git a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
index 3770aa38ee9f..7e6339f62a50 100644
--- a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
@@ -24,6 +24,8 @@
 #define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
 #define UART_GET_LSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LSR))
 #define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
+#define UART_GET_MSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_MSR))
+#define UART_GET_MCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_MCR))
 
 #define UART_PUT_CHAR(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_THR),v)
 #define UART_PUT_DLL(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_DLL),v)
@@ -32,7 +34,9 @@
 #define UART_PUT_DLH(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_DLH),v)
 #define UART_PUT_LSR(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_LSR),v)
 #define UART_PUT_LCR(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_LCR),v)
+#define UART_CLEAR_LSR(uart)    bfin_write16(((uart)->port.membase + OFFSET_LSR), -1)
 #define UART_PUT_GCTL(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_GCTL),v)
+#define UART_PUT_MCR(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_MCR),v)
 
 #if defined(CONFIG_BFIN_UART0_CTSRTS) || defined(CONFIG_BFIN_UART1_CTSRTS)
 # define CONFIG_SERIAL_BFIN_CTSRTS
@@ -68,10 +72,9 @@ struct bfin_serial_port {
         unsigned int            tx_dma_channel;
         unsigned int            rx_dma_channel;
         struct work_struct      tx_dma_workqueue;
-#else
-        struct work_struct      cts_workqueue;
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
+        struct work_struct      cts_workqueue;
         int             cts_pin;
         int             rts_pin;
 #endif
diff --git a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
index 7871d4313f49..b6f513bee56e 100644
--- a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
@@ -23,7 +23,6 @@
 #define UART_GET_DLH(uart)      bfin_read16(((uart)->port.membase + OFFSET_DLH))
 #define UART_GET_IIR(uart)      bfin_read16(((uart)->port.membase + OFFSET_IIR))
 #define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
-#define UART_GET_LSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LSR))
 #define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
 
 #define UART_PUT_CHAR(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_THR),v)
@@ -46,6 +45,7 @@
 struct bfin_serial_port {
         struct uart_port        port;
         unsigned int            old_status;
+        unsigned int lsr;
 #ifdef CONFIG_SERIAL_BFIN_DMA
         int                     tx_done;
         int                     tx_count;
@@ -56,14 +56,34 @@ struct bfin_serial_port {
         unsigned int            rx_dma_channel;
         struct work_struct      tx_dma_workqueue;
 #else
-        struct work_struct      cts_workqueue;
+# if ANOMALY_05000230
+        unsigned int anomaly_threshold;
+# endif
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
+        struct work_struct      cts_workqueue;
         int                     cts_pin;
         int                     rts_pin;
 #endif
 };
 
+/* The hardware clears the LSR bits upon read, so we need to cache
+ * some of the more fun bits in software so they don't get lost
+ * when checking the LSR in other code paths (TX).
+ */
+static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart)
+{
+        unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR);
+        uart->lsr |= (lsr & (BI|FE|PE|OE));
+        return lsr | uart->lsr;
+}
+
+static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
+{
+        uart->lsr = 0;
+        bfin_write16(uart->port.membase + OFFSET_LSR, -1);
+}
+
 struct bfin_serial_port bfin_serial_ports[NR_PORTS];
 struct bfin_serial_res {
         unsigned long   uart_base_addr;
diff --git a/include/asm-blackfin/mach-bf561/blackfin.h b/include/asm-blackfin/mach-bf561/blackfin.h
index 362617f93845..3a16df2c86d8 100644
--- a/include/asm-blackfin/mach-bf561/blackfin.h
+++ b/include/asm-blackfin/mach-bf561/blackfin.h
@@ -49,7 +49,8 @@
 #define bfin_read_FIO_INEN() bfin_read_FIO0_INEN()
 #define bfin_write_FIO_INEN(val) bfin_write_FIO0_INEN(val)
 
-
+#define SIC_IWR0 SICA_IWR0
+#define SIC_IWR1 SICA_IWR1
 #define SIC_IAR0 SICA_IAR0
 #define bfin_write_SIC_IMASK0 bfin_write_SICA_IMASK0
 #define bfin_write_SIC_IMASK1 bfin_write_SICA_IMASK1
diff --git a/include/asm-blackfin/mach-bf561/cdefBF561.h b/include/asm-blackfin/mach-bf561/cdefBF561.h
index d667816486c0..1bc8d2f89ccc 100644
--- a/include/asm-blackfin/mach-bf561/cdefBF561.h
+++ b/include/asm-blackfin/mach-bf561/cdefBF561.h
@@ -559,6 +559,7 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val)
 #define bfin_write_PPI0_CONTROL(val)         bfin_write16(PPI0_CONTROL,val)
 #define bfin_read_PPI0_STATUS()              bfin_read16(PPI0_STATUS)
 #define bfin_write_PPI0_STATUS(val)          bfin_write16(PPI0_STATUS,val)
+#define bfin_clear_PPI0_STATUS()             bfin_read_PPI0_STATUS()
 #define bfin_read_PPI0_COUNT()               bfin_read16(PPI0_COUNT)
 #define bfin_write_PPI0_COUNT(val)           bfin_write16(PPI0_COUNT,val)
 #define bfin_read_PPI0_DELAY()               bfin_read16(PPI0_DELAY)
@@ -570,6 +571,7 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val)
 #define bfin_write_PPI1_CONTROL(val)         bfin_write16(PPI1_CONTROL,val)
 #define bfin_read_PPI1_STATUS()              bfin_read16(PPI1_STATUS)
 #define bfin_write_PPI1_STATUS(val)          bfin_write16(PPI1_STATUS,val)
+#define bfin_clear_PPI1_STATUS()             bfin_read_PPI1_STATUS()
 #define bfin_read_PPI1_COUNT()               bfin_read16(PPI1_COUNT)
 #define bfin_write_PPI1_COUNT(val)           bfin_write16(PPI1_COUNT,val)
 #define bfin_read_PPI1_DELAY()               bfin_read16(PPI1_DELAY)
diff --git a/include/asm-cris/uaccess.h b/include/asm-cris/uaccess.h
index 69d48a2dc8e1..ea11eaf0e922 100644
--- a/include/asm-cris/uaccess.h
+++ b/include/asm-cris/uaccess.h
@@ -1,43 +1,6 @@
 /* 
  * Authors:    Bjorn Wesen (bjornw@axis.com)
  *             Hans-Peter Nilsson (hp@axis.com)
- *
- * $Log: uaccess.h,v $
- * Revision 1.8  2001/10/29 13:01:48  bjornw
- * Removed unused variable tmp2 in strnlen_user
- *
- * Revision 1.7  2001/10/02 12:44:52  hp
- * Add support for 64-bit put_user/get_user
- *
- * Revision 1.6  2001/10/01 14:51:17  bjornw
- * Added register prefixes and removed underscores
- *
- * Revision 1.5  2000/10/25 03:33:21  hp
- * - Provide implementation for everything else but get_user and put_user;
- *   copying inline to/from user for constant length 0..16, 20, 24, and
- *   clearing for 0..4, 8, 12, 16, 20, 24, strncpy_from_user and strnlen_user
- *   always inline.
- * - Constraints for destination addr in get_user cannot be memory, only reg.
- * - Correct labels for PC at expected fault points.
- * - Nits with assembly code.
- * - Don't use statement expressions without value; use "do {} while (0)".
- * - Return correct values from __generic_... functions.
- *
- * Revision 1.4  2000/09/12 16:28:25  bjornw
- * * Removed comments from the get/put user asm code
- * * Constrains for destination addr in put_user cannot be memory, only reg
- *
- * Revision 1.3  2000/09/12 14:30:20  bjornw
- * MAX_ADDR_USER does not exist anymore
- *
- * Revision 1.2  2000/07/13 15:52:48  bjornw
- * New user-access functions
- *
- * Revision 1.1.1.1  2000/07/10 16:32:31  bjornw
- * CRIS architecture, working draft
- *
- *
- *
  */
 
 /* Asm:s have been tweaked (within the domain of correctness) to give
@@ -209,9 +172,9 @@ extern long __get_user_bad(void);
 /* More complex functions.  Most are inline, but some call functions that
    live in lib/usercopy.c  */
 
-extern unsigned long __copy_user(void *to, const void *from, unsigned long n);
-extern unsigned long __copy_user_zeroing(void *to, const void *from, unsigned long n);
-extern unsigned long __do_clear_user(void *to, unsigned long n);
+extern unsigned long __copy_user(void __user *to, const void *from, unsigned long n);
+extern unsigned long __copy_user_zeroing(void *to, const void __user *from, unsigned long n);
+extern unsigned long __do_clear_user(void __user *to, unsigned long n);
 
 static inline unsigned long
 __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
@@ -253,7 +216,7 @@ strncpy_from_user(char *dst, const char __user *src, long count)
 }
 
 
-/* Note that if these expand awfully if made into switch constructs, so
+/* Note that these expand awfully if made into switch constructs, so
    don't do that.  */
 
 static inline unsigned long
@@ -407,19 +370,21 @@ __constant_clear_user(void __user *to, unsigned long n)
  */
 
 static inline unsigned long
-__generic_copy_from_user_nocheck(void *to, const void *from, unsigned long n)
+__generic_copy_from_user_nocheck(void *to, const void __user *from,
+                                 unsigned long n)
 {
         return __copy_user_zeroing(to,from,n);
 }
 
 static inline unsigned long
-__generic_copy_to_user_nocheck(void *to, const void *from, unsigned long n)
+__generic_copy_to_user_nocheck(void __user *to, const void *from,
+                               unsigned long n)
 {
         return __copy_user(to,from,n);
 }
 
 static inline unsigned long
-__generic_clear_user_nocheck(void *to, unsigned long n)
+__generic_clear_user_nocheck(void __user *to, unsigned long n)
 {
         return __do_clear_user(to,n);
 }
diff --git a/include/asm-cris/unistd.h b/include/asm-cris/unistd.h
index 007cb16a6b5b..76398ef87e9b 100644
--- a/include/asm-cris/unistd.h
+++ b/include/asm-cris/unistd.h
@@ -329,12 +329,12 @@
 #define __NR_timerfd_create     322
 #define __NR_eventfd            323
 #define __NR_fallocate          324
-#define __NR_timerfd_settime    315
-#define __NR_timerfd_gettime    316
+#define __NR_timerfd_settime    325
+#define __NR_timerfd_gettime    326
 
 #ifdef __KERNEL__
 
-#define NR_syscalls 325
+#define NR_syscalls 327
 
 #include <asm/arch/unistd.h>
 
diff --git a/include/asm-ia64/Kbuild b/include/asm-ia64/Kbuild
index 4a1e48b9f403..eb24a3f47caa 100644
--- a/include/asm-ia64/Kbuild
+++ b/include/asm-ia64/Kbuild
@@ -3,7 +3,6 @@ include include/asm-generic/Kbuild.asm
 header-y += break.h
 header-y += fpu.h
 header-y += fpswa.h
-header-y += gcc_intrin.h
 header-y += ia64regs.h
 header-y += intel_intrin.h
 header-y += intrinsics.h
@@ -12,5 +11,6 @@ header-y += ptrace_offsets.h
 header-y += rse.h
 header-y += ucontext.h
 
+unifdef-y += gcc_intrin.h
 unifdef-y += perfmon.h
 unifdef-y += ustack.h
diff --git a/include/asm-ia64/hw_irq.h b/include/asm-ia64/hw_irq.h
index 7e6e3779670a..76366dc9c1a0 100644
--- a/include/asm-ia64/hw_irq.h
+++ b/include/asm-ia64/hw_irq.h
@@ -93,6 +93,9 @@ extern __u8 isa_irq_to_vector_map[16];
 struct irq_cfg {
         ia64_vector vector;
         cpumask_t domain;
+        cpumask_t old_domain;
+        unsigned move_cleanup_count;
+        u8 move_in_progress : 1;
 };
 extern spinlock_t vector_lock;
 extern struct irq_cfg irq_cfg[NR_IRQS];
@@ -106,12 +109,19 @@ extern int assign_irq_vector (int irq);	/* allocate a free vector */
 extern void free_irq_vector (int vector);
 extern int reserve_irq_vector (int vector);
 extern void __setup_vector_irq(int cpu);
-extern int reassign_irq_vector(int irq, int cpu);
 extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect);
 extern void register_percpu_irq (ia64_vector vec, struct irqaction *action);
 extern int check_irq_used (int irq);
 extern void destroy_and_reserve_irq (unsigned int irq);
 
+#if defined(CONFIG_SMP) && (defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG))
+extern int irq_prepare_move(int irq, int cpu);
+extern void irq_complete_move(unsigned int irq);
+#else
+static inline int irq_prepare_move(int irq, int cpu) { return 0; }
+static inline void irq_complete_move(unsigned int irq) {}
+#endif
+
 static inline void ia64_resend_irq(unsigned int vector)
 {
         platform_send_ipi(smp_processor_id(), vector, IA64_IPI_DM_INT, 0);
diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h
index a93ce9ef07ff..8233b3a964c6 100644
--- a/include/asm-ia64/kprobes.h
+++ b/include/asm-ia64/kprobes.h
@@ -82,7 +82,6 @@ struct kprobe_ctlblk {
         struct prev_kprobe prev_kprobe[ARCH_PREV_KPROBE_SZ];
 };
 
-#define ARCH_SUPPORTS_KRETPROBES
 #define kretprobe_blacklist_size 0
 
 #define SLOT0_OPCODE_SHIFT      (37)
@@ -122,10 +121,6 @@ extern int kprobes_fault_handler(struct pt_regs *regs, int trapnr);
 extern int kprobe_exceptions_notify(struct notifier_block *self,
                                     unsigned long val, void *data);
 
-/* ia64 does not need this */
-static inline void jprobe_return(void)
-{
-}
 extern void invalidate_stacked_regs(void);
 extern void flush_register_stack(void);
 extern void arch_remove_kprobe(struct kprobe *p);
diff --git a/include/asm-ia64/sal.h b/include/asm-ia64/sal.h
index 2251118894ae..f4904db3b057 100644
--- a/include/asm-ia64/sal.h
+++ b/include/asm-ia64/sal.h
@@ -807,6 +807,10 @@ static inline s64
 ia64_sal_physical_id_info(u16 *splid)
 {
         struct ia64_sal_retval isrv;
+
+        if (sal_revision < SAL_VERSION_CODE(3,2))
+                return -1;
+
         SAL_CALL(isrv, SAL_PHYSICAL_ID_INFO, 0, 0, 0, 0, 0, 0, 0);
         if (splid)
                 *splid = isrv.v0;
diff --git a/include/asm-m68k/unistd.h b/include/asm-m68k/unistd.h
index 87f77b119317..e72ba563f102 100644
--- a/include/asm-m68k/unistd.h
+++ b/include/asm-m68k/unistd.h
@@ -320,13 +320,15 @@
 #define __NR_epoll_pwait        315
 #define __NR_utimensat          316
 #define __NR_signalfd           317
-#define __NR_timerfd            318
+#define __NR_timerfd_create     318
 #define __NR_eventfd            319
 #define __NR_fallocate          320
+#define __NR_timerfd_settime    321
+#define __NR_timerfd_gettime    322
 
 #ifdef __KERNEL__
 
-#define NR_syscalls             321
+#define NR_syscalls             323
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
diff --git a/include/asm-m68knommu/machdep.h b/include/asm-m68knommu/machdep.h
index 1cf26d240d83..de9f47a51cc2 100644
--- a/include/asm-m68knommu/machdep.h
+++ b/include/asm-m68knommu/machdep.h
@@ -21,4 +21,6 @@ extern void (*mach_power_off)( void );
 
 extern void config_BSP(char *command, int len);
 
+extern void do_IRQ(int irq, struct pt_regs *fp);
+
 #endif /* _M68KNOMMU_MACHDEP_H */
diff --git a/include/asm-m68knommu/unistd.h b/include/asm-m68knommu/unistd.h
index 27c2f9bb4dbd..4ba98b9c5d79 100644
--- a/include/asm-m68knommu/unistd.h
+++ b/include/asm-m68knommu/unistd.h
@@ -321,13 +321,15 @@
 #define __NR_epoll_pwait        315
 #define __NR_utimensat          316
 #define __NR_signalfd           317
-#define __NR_timerfd            318
+#define __NR_timerfd_create     318
 #define __NR_eventfd            319
 #define __NR_fallocate          320
+#define __NR_timerfd_settime    321
+#define __NR_timerfd_gettime    322
 
 #ifdef __KERNEL__
 
-#define NR_syscalls             321
+#define NR_syscalls             323
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h
index afabad230dbb..d0e7701fa1f6 100644
--- a/include/asm-powerpc/kprobes.h
+++ b/include/asm-powerpc/kprobes.h
@@ -80,7 +80,6 @@ typedef unsigned int kprobe_opcode_t;
 #define is_trap(instr)  (IS_TW(instr) || IS_TWI(instr))
 #endif
 
-#define ARCH_SUPPORTS_KRETPROBES
 #define flush_insn_slot(p)      do { } while (0)
 #define kretprobe_blacklist_size 0
 
diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h
index 0d6238987df8..edc0cfd7f6e2 100644
--- a/include/asm-powerpc/reg.h
+++ b/include/asm-powerpc/reg.h
@@ -153,6 +153,9 @@
 #define   CTRL_RUNLATCH 0x1
 #define SPRN_DABR       0x3F5   /* Data Address Breakpoint Register */
 #define   DABR_TRANSLATION      (1UL << 2)
+#define SPRN_DABRX      0x3F7   /* Data Address Breakpoint Register Extension */
+#define   DABRX_USER    (1UL << 0)
+#define   DABRX_KERNEL  (1UL << 1)
 #define SPRN_DAR        0x013   /* Data Address Register */
 #define SPRN_DSISR      0x012   /* Data Storage Interrupt Status Register */
 #define   DSISR_NOHPTE          0x40000000      /* no translation found */
diff --git a/include/asm-s390/kprobes.h b/include/asm-s390/kprobes.h
index 948db3d0d05c..330f68caffe4 100644
--- a/include/asm-s390/kprobes.h
+++ b/include/asm-s390/kprobes.h
@@ -46,7 +46,6 @@ typedef u16 kprobe_opcode_t;
         ? (MAX_STACK_SIZE) \
         : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR)))
 
-#define ARCH_SUPPORTS_KRETPROBES
 #define kretprobe_blacklist_size 0
 
 #define KPROBE_SWAP_INST        0x10
diff --git a/include/asm-sh/cpu-sh3/cache.h b/include/asm-sh/cpu-sh3/cache.h
index 56bd838b7db4..bee2d81c56bf 100644
--- a/include/asm-sh/cpu-sh3/cache.h
+++ b/include/asm-sh/cpu-sh3/cache.h
@@ -35,7 +35,7 @@
     defined(CONFIG_CPU_SUBTYPE_SH7710) || \
     defined(CONFIG_CPU_SUBTYPE_SH7720) || \
     defined(CONFIG_CPU_SUBTYPE_SH7721)
-#define CCR3    0xa40000b4
+#define CCR3_REG        0xa40000b4
 #define CCR_CACHE_16KB  0x00010000
 #define CCR_CACHE_32KB  0x00020000
 #endif
diff --git a/include/asm-sh/entry-macros.S b/include/asm-sh/entry-macros.S
index 500030eae7aa..2dab0b8d9454 100644
--- a/include/asm-sh/entry-macros.S
+++ b/include/asm-sh/entry-macros.S
@@ -12,7 +12,7 @@
         not     r11, r11
         stc     sr, r10
         and     r11, r10
-#ifdef CONFIG_HAS_SR_RB
+#ifdef CONFIG_CPU_HAS_SR_RB
         stc     k_g_imask, r11
         or      r11, r10
 #endif
@@ -20,7 +20,7 @@
         .endm
 
         .macro  get_current_thread_info, ti, tmp
-#ifdef CONFIG_HAS_SR_RB
+#ifdef CONFIG_CPU_HAS_SR_RB
         stc     r7_bank, \ti
 #else
         mov     #((THREAD_SIZE - 1) >> 10) ^ 0xff, \tmp
diff --git a/include/asm-sparc/system.h b/include/asm-sparc/system.h
index 45e47c159a6e..4e08210cd4c2 100644
--- a/include/asm-sparc/system.h
+++ b/include/asm-sparc/system.h
@@ -44,6 +44,8 @@ extern enum sparc_cpu sparc_cpu_model;
 
 #define SUN4M_NCPUS            4              /* Architectural limit of sun4m. */
 
+extern char reboot_command[];
+
 extern struct thread_info *current_set[NR_CPUS];
 
 extern unsigned long empty_bad_page;
diff --git a/include/asm-sparc64/kprobes.h b/include/asm-sparc64/kprobes.h
index 7237dd87663e..5879d71afdaa 100644
--- a/include/asm-sparc64/kprobes.h
+++ b/include/asm-sparc64/kprobes.h
@@ -14,8 +14,6 @@ typedef u32 kprobe_opcode_t;
 
 #define arch_remove_kprobe(p)   do {} while (0)
 
-#define ARCH_SUPPORTS_KRETPROBES
-
 #define flush_insn_slot(p)              \
 do {    flushi(&(p)->ainsn.insn[0]);    \
         flushi(&(p)->ainsn.insn[1]);    \
diff --git a/include/asm-sparc64/system.h b/include/asm-sparc64/system.h
index ed91a5d8d4f0..53eae091a171 100644
--- a/include/asm-sparc64/system.h
+++ b/include/asm-sparc64/system.h
@@ -30,6 +30,8 @@ enum sparc_cpu {
 #define ARCH_SUN4C_SUN4 0
 #define ARCH_SUN4 0
 
+extern char reboot_command[];
+
 /* These are here in an effort to more fully work around Spitfire Errata
  * #51.  Essentially, if a memory barrier occurs soon after a mispredicted
  * branch, the chip can stop executing instructions until a trap occurs.
diff --git a/include/asm-x86/futex.h b/include/asm-x86/futex.h
index cd9f894dd2d7..c9952ea9f698 100644
--- a/include/asm-x86/futex.h
+++ b/include/asm-x86/futex.h
@@ -102,6 +102,13 @@ futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
 static inline int
 futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 {
+
+#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_BSWAP)
+        /* Real i386 machines have no cmpxchg instruction */
+        if (boot_cpu_data.x86 == 3)
+                return -ENOSYS;
+#endif
+
         if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
                 return -EFAULT;
 
diff --git a/include/asm-x86/kprobes.h b/include/asm-x86/kprobes.h
index 143476a3cb52..61ad7b5d142e 100644
--- a/include/asm-x86/kprobes.h
+++ b/include/asm-x86/kprobes.h
@@ -42,7 +42,6 @@ typedef u8 kprobe_opcode_t;
         : (((unsigned long)current_thread_info()) + THREAD_SIZE \
            - (unsigned long)(ADDR)))
 
-#define ARCH_SUPPORTS_KRETPROBES
 #define flush_insn_slot(p)      do { } while (0)
 
 extern const int kretprobe_blacklist_size;
diff --git a/include/asm-x86/lguest.h b/include/asm-x86/lguest.h
index 4d9367b72976..9b17571e9bc3 100644
--- a/include/asm-x86/lguest.h
+++ b/include/asm-x86/lguest.h
@@ -23,6 +23,17 @@
 /* Found in switcher.S */
 extern unsigned long default_idt_entries[];
 
+/* Declarations for definitions in lguest_guest.S */
+extern char lguest_noirq_start[], lguest_noirq_end[];
+extern const char lgstart_cli[], lgend_cli[];
+extern const char lgstart_sti[], lgend_sti[];
+extern const char lgstart_popf[], lgend_popf[];
+extern const char lgstart_pushf[], lgend_pushf[];
+extern const char lgstart_iret[], lgend_iret[];
+
+extern void lguest_iret(void);
+extern void lguest_init(void);
+
 struct lguest_regs
 {
         /* Manually saved part. */
diff --git a/include/asm-x86/nops.h b/include/asm-x86/nops.h
index fec025c7f58c..e3b2bce0aff8 100644
--- a/include/asm-x86/nops.h
+++ b/include/asm-x86/nops.h
@@ -3,17 +3,29 @@
 
 /* Define nops for use with alternative() */
 
-/* generic versions from gas */
-#define GENERIC_NOP1    ".byte 0x90\n"
-#define GENERIC_NOP2            ".byte 0x89,0xf6\n"
-#define GENERIC_NOP3        ".byte 0x8d,0x76,0x00\n"
-#define GENERIC_NOP4        ".byte 0x8d,0x74,0x26,0x00\n"
-#define GENERIC_NOP5        GENERIC_NOP1 GENERIC_NOP4
-#define GENERIC_NOP6    ".byte 0x8d,0xb6,0x00,0x00,0x00,0x00\n"
-#define GENERIC_NOP7    ".byte 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00\n"
-#define GENERIC_NOP8    GENERIC_NOP1 GENERIC_NOP7
+/* generic versions from gas
+   1: nop
+   2: movl %esi,%esi
+   3: leal 0x00(%esi),%esi
+   4: leal 0x00(,%esi,1),%esi
+   6: leal 0x00000000(%esi),%esi
+   7: leal 0x00000000(,%esi,1),%esi
+*/
+#define GENERIC_NOP1 ".byte 0x90\n"
+#define GENERIC_NOP2 ".byte 0x89,0xf6\n"
+#define GENERIC_NOP3 ".byte 0x8d,0x76,0x00\n"
+#define GENERIC_NOP4 ".byte 0x8d,0x74,0x26,0x00\n"
+#define GENERIC_NOP5 GENERIC_NOP1 GENERIC_NOP4
+#define GENERIC_NOP6 ".byte 0x8d,0xb6,0x00,0x00,0x00,0x00\n"
+#define GENERIC_NOP7 ".byte 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00\n"
+#define GENERIC_NOP8 GENERIC_NOP1 GENERIC_NOP7
 
-/* Opteron 64bit nops */
+/* Opteron 64bit nops
+   1: nop
+   2: osp nop
+   3: osp osp nop
+   4: osp osp osp nop
+*/
 #define K8_NOP1 GENERIC_NOP1
 #define K8_NOP2 ".byte 0x66,0x90\n"
 #define K8_NOP3 ".byte 0x66,0x66,0x90\n"
@@ -23,19 +35,35 @@
 #define K8_NOP7 K8_NOP4 K8_NOP3
 #define K8_NOP8 K8_NOP4 K8_NOP4
 
-/* K7 nops */
-/* uses eax dependencies (arbitary choice) */
-#define K7_NOP1  GENERIC_NOP1
+/* K7 nops
+   uses eax dependencies (arbitary choice)
+   1: nop
+   2: movl %eax,%eax
+   3: leal (,%eax,1),%eax
+   4: leal 0x00(,%eax,1),%eax
+   6: leal 0x00000000(%eax),%eax
+   7: leal 0x00000000(,%eax,1),%eax
+*/
+#define K7_NOP1 GENERIC_NOP1
 #define K7_NOP2 ".byte 0x8b,0xc0\n"
 #define K7_NOP3 ".byte 0x8d,0x04,0x20\n"
 #define K7_NOP4 ".byte 0x8d,0x44,0x20,0x00\n"
 #define K7_NOP5 K7_NOP4 ASM_NOP1
 #define K7_NOP6 ".byte 0x8d,0x80,0,0,0,0\n"
-#define K7_NOP7        ".byte 0x8D,0x04,0x05,0,0,0,0\n"
-#define K7_NOP8        K7_NOP7 ASM_NOP1
+#define K7_NOP7 ".byte 0x8D,0x04,0x05,0,0,0,0\n"
+#define K7_NOP8 K7_NOP7 ASM_NOP1
 
-/* P6 nops */
-/* uses eax dependencies (Intel-recommended choice) */
+/* P6 nops
+   uses eax dependencies (Intel-recommended choice)
+   1: nop
+   2: osp nop
+   3: nopl (%eax)
+   4: nopl 0x00(%eax)
+   5: nopl 0x00(%eax,%eax,1)
+   6: osp nopl 0x00(%eax,%eax,1)
+   7: nopl 0x00000000(%eax)
+   8: nopl 0x00000000(%eax,%eax,1)
+*/
 #define P6_NOP1 GENERIC_NOP1
 #define P6_NOP2 ".byte 0x66,0x90\n"
 #define P6_NOP3 ".byte 0x0f,0x1f,0x00\n"
@@ -63,9 +91,7 @@
 #define ASM_NOP6 K7_NOP6
 #define ASM_NOP7 K7_NOP7
 #define ASM_NOP8 K7_NOP8
-#elif defined(CONFIG_M686) || defined(CONFIG_MPENTIUMII) || \
-      defined(CONFIG_MPENTIUMIII) || defined(CONFIG_MPENTIUMM) || \
-      defined(CONFIG_MCORE2) || defined(CONFIG_PENTIUM4)
+#elif defined(CONFIG_X86_P6_NOP)
 #define ASM_NOP1 P6_NOP1
 #define ASM_NOP2 P6_NOP2
 #define ASM_NOP3 P6_NOP3
diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
index f7393bc516ef..143546073b95 100644
--- a/include/asm-x86/page_64.h
+++ b/include/asm-x86/page_64.h
@@ -47,8 +47,12 @@
 #define __PHYSICAL_MASK_SHIFT   46
 #define __VIRTUAL_MASK_SHIFT    48
 
-#define KERNEL_TEXT_SIZE  (40*1024*1024)
-#define KERNEL_TEXT_START _AC(0xffffffff80000000, UL)
+/*
+ * Kernel image size is limited to 128 MB (see level2_kernel_pgt in
+ * arch/x86/kernel/head_64.S), and it is mapped here:
+ */
+#define KERNEL_IMAGE_SIZE       (128*1024*1024)
+#define KERNEL_IMAGE_START      _AC(0xffffffff80000000, UL)
 
 #ifndef __ASSEMBLY__
 void clear_page(void *page);
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h
index 81a8ee4c55fc..f224eb3c3157 100644
--- a/include/asm-x86/ptrace-abi.h
+++ b/include/asm-x86/ptrace-abi.h
@@ -89,13 +89,13 @@
 */
 struct ptrace_bts_config {
         /* requested or actual size of BTS buffer in bytes */
-        u32 size;
+        __u32 size;
         /* bitmask of below flags */
-        u32 flags;
+        __u32 flags;
         /* buffer overflow signal */
-        u32 signal;
+        __u32 signal;
         /* actual size of bts_struct in bytes */
-        u32 bts_size;
+        __u32 bts_size;
 };
 #endif
 
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index aada32fffec2..994df3780007 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -61,6 +61,7 @@ header-y += efs_fs_sb.h
 header-y += elf-fdpic.h
 header-y += elf-em.h
 header-y += fadvise.h
+header-y += falloc.h
 header-y += fd.h
 header-y += fdreg.h
 header-y += fib_rules.h
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 6fe67d1939c2..6f79d40dd3c0 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -216,8 +216,8 @@ struct request {
         unsigned int cmd_len;
         unsigned char cmd[BLK_MAX_CDB];
 
-        unsigned int raw_data_len;
         unsigned int data_len;
+        unsigned int extra_len; /* length of alignment and padding */
         unsigned int sense_len;
         void *data;
         void *sense;
@@ -362,6 +362,7 @@ struct request_queue
         unsigned long           seg_boundary_mask;
         void                    *dma_drain_buffer;
         unsigned int            dma_drain_size;
+        unsigned int            dma_pad_mask;
         unsigned int            dma_alignment;
 
         struct blk_queue_tag    *queue_tags;
@@ -701,6 +702,7 @@ extern void blk_queue_max_hw_segments(struct request_queue *, unsigned short);
 extern void blk_queue_max_segment_size(struct request_queue *, unsigned int);
 extern void blk_queue_hardsect_size(struct request_queue *, unsigned short);
 extern void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b);
+extern void blk_queue_dma_pad(struct request_queue *, unsigned int);
 extern int blk_queue_dma_drain(struct request_queue *q,
                                dma_drain_needed_fn *dma_drain_needed,
                                void *buf, unsigned int size);
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index ac6aad98b607..1ddebfc52565 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -37,7 +37,7 @@ SUBSYS(cpuacct)
 
 /* */
 
-#ifdef CONFIG_CGROUP_MEM_CONT
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
 SUBSYS(mem_cgroup)
 #endif
 
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index d0e17e1657dc..dcae0c8d97e6 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -138,6 +138,12 @@ extern void __chk_io_ptr(const volatile void __iomem *);
 #define noinline
 #endif
 
+/*
+ * Rather then using noinline to prevent stack consumption, use
+ * noinline_for_stack instead.  For documentaiton reasons.
+ */
+#define noinline_for_stack noinline
+
 #ifndef __always_inline
 #define __always_inline inline
 #endif
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index f592d6de3b97..7266124361b4 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -27,6 +27,11 @@ struct debugfs_blob_wrapper {
 };
 
 #if defined(CONFIG_DEBUG_FS)
+
+/* declared over in file.c */
+extern const struct file_operations debugfs_file_operations;
+extern const struct inode_operations debugfs_link_operations;
+
 struct dentry *debugfs_create_file(const char *name, mode_t mode,
                                    struct dentry *parent, void *data,
                                    const struct file_operations *fops);
diff --git a/include/linux/delay.h b/include/linux/delay.h
index 17ddb55430ae..54552d21296e 100644
--- a/include/linux/delay.h
+++ b/include/linux/delay.h
@@ -7,6 +7,8 @@
  * Delay routines, using a pre-computed "loops_per_jiffy" value.
  */
 
+#include <linux/kernel.h>
+
 extern unsigned long loops_per_jiffy;
 
 #include <asm/delay.h>
@@ -32,7 +34,11 @@ extern unsigned long loops_per_jiffy;
 #endif
 
 #ifndef ndelay
-#define ndelay(x)       udelay(((x)+999)/1000)
+static inline void ndelay(unsigned long x)
+{
+        udelay(DIV_ROUND_UP(x, 1000));
+}
+#define ndelay(x) ndelay(x)
 #endif
 
 void calibrate_delay(void);
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index acbb364674ff..261e43a4c873 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -366,7 +366,7 @@ __dma_has_cap(enum dma_transaction_type tx_type, dma_cap_mask_t *srcp)
  */
 static inline void dma_async_issue_pending(struct dma_chan *chan)
 {
-        return chan->device->device_issue_pending(chan);
+        chan->device->device_issue_pending(chan);
 }
 
 #define dma_async_memcpy_issue_pending(chan) dma_async_issue_pending(chan)
diff --git a/include/linux/elfcore-compat.h b/include/linux/elfcore-compat.h
index 532d13adabc4..0a90e1c3a422 100644
--- a/include/linux/elfcore-compat.h
+++ b/include/linux/elfcore-compat.h
@@ -45,8 +45,8 @@ struct compat_elf_prpsinfo
         char                            pr_zomb;
         char                            pr_nice;
         compat_ulong_t                  pr_flag;
-        compat_uid_t                    pr_uid;
-        compat_gid_t                    pr_gid;
+        __compat_uid_t                  pr_uid;
+        __compat_gid_t                  pr_gid;
         compat_pid_t                    pr_pid, pr_ppid, pr_pgrp, pr_sid;
         char                            pr_fname[16];
         char                            pr_psargs[ELF_PRARGSZ];
diff --git a/include/linux/ext4_fs_extents.h b/include/linux/ext4_fs_extents.h
index 697da4bce6c5..1285c583b2d8 100644
--- a/include/linux/ext4_fs_extents.h
+++ b/include/linux/ext4_fs_extents.h
@@ -227,5 +227,6 @@ extern int ext4_ext_search_left(struct inode *, struct ext4_ext_path *,
                                                 ext4_lblk_t *, ext4_fsblk_t *);
 extern int ext4_ext_search_right(struct inode *, struct ext4_ext_path *,
                                                 ext4_lblk_t *, ext4_fsblk_t *);
+extern void ext4_ext_drop_refs(struct ext4_ext_path *);
 #endif /* _LINUX_EXT4_EXTENTS */
 
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 09a3b18918c7..32c2ac49a070 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -18,11 +18,13 @@
 #define dev_to_disk(device) container_of(device, struct gendisk, dev)
 #define dev_to_part(device) container_of(device, struct hd_struct, dev)
 
-extern struct device_type disk_type;
 extern struct device_type part_type;
 extern struct kobject *block_depr;
 extern struct class block_class;
 
+extern const struct seq_operations partitions_op;
+extern const struct seq_operations diskstats_op;
+
 enum {
 /* These three have identical behaviour; use the second one if DOS FDISK gets
    confused about extended/logical partitions starting past cylinder 1023. */
@@ -556,7 +558,6 @@ extern struct gendisk *alloc_disk_node(int minors, int node_id);
 extern struct gendisk *alloc_disk(int minors);
 extern struct kobject *get_disk(struct gendisk *disk);
 extern void put_disk(struct gendisk *disk);
-extern void genhd_media_change_notify(struct gendisk *disk);
 extern void blk_register_region(dev_t devt, unsigned long range,
                         struct module *module,
                         struct kobject *(*probe)(dev_t, int *, void *),
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
new file mode 100644
index 000000000000..4987a84078ef
--- /dev/null
+++ b/include/linux/gpio.h
@@ -0,0 +1,95 @@
+#ifndef __LINUX_GPIO_H
+#define __LINUX_GPIO_H
+
+/* see Documentation/gpio.txt */
+
+#ifdef CONFIG_GENERIC_GPIO
+#include <asm/gpio.h>
+
+#else
+
+/*
+ * Some platforms don't support the GPIO programming interface.
+ *
+ * In case some driver uses it anyway (it should normally have
+ * depended on GENERIC_GPIO), these routines help the compiler
+ * optimize out much GPIO-related code ... or trigger a runtime
+ * warning when something is wrongly called.
+ */
+
+static inline int gpio_is_valid(int number)
+{
+        return 0;
+}
+
+static inline int gpio_request(unsigned gpio, const char *label)
+{
+        return -ENOSYS;
+}
+
+static inline void gpio_free(unsigned gpio)
+{
+        /* GPIO can never have been requested */
+        WARN_ON(1);
+}
+
+static inline int gpio_direction_input(unsigned gpio)
+{
+        return -ENOSYS;
+}
+
+static inline int gpio_direction_output(unsigned gpio, int value)
+{
+        return -ENOSYS;
+}
+
+static inline int gpio_get_value(unsigned gpio)
+{
+        /* GPIO can never have been requested or set as {in,out}put */
+        WARN_ON(1);
+        return 0;
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+        /* GPIO can never have been requested or set as output */
+        WARN_ON(1);
+}
+
+static inline int gpio_cansleep(unsigned gpio)
+{
+        /* GPIO can never have been requested or set as {in,out}put */
+        WARN_ON(1);
+        return 0;
+}
+
+static inline int gpio_get_value_cansleep(unsigned gpio)
+{
+        /* GPIO can never have been requested or set as {in,out}put */
+        WARN_ON(1);
+        return 0;
+}
+
+static inline void gpio_set_value_cansleep(unsigned gpio, int value)
+{
+        /* GPIO can never have been requested or set as output */
+        WARN_ON(1);
+}
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+        /* GPIO can never have been requested or set as input */
+        WARN_ON(1);
+        return -EINVAL;
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+        /* irq can never have been returned from gpio_to_irq() */
+        WARN_ON(1);
+        return -EINVAL;
+}
+
+#endif
+
+#endif /* __LINUX_GPIO_H */
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index 2961ec788046..49829988bfa0 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -109,6 +109,14 @@ static inline void account_system_vtime(struct task_struct *tsk)
 }
 #endif
 
+#if defined(CONFIG_PREEMPT_RCU) && defined(CONFIG_NO_HZ)
+extern void rcu_irq_enter(void);
+extern void rcu_irq_exit(void);
+#else
+# define rcu_irq_enter() do { } while (0)
+# define rcu_irq_exit() do { } while (0)
+#endif /* CONFIG_PREEMPT_RCU */
+
 /*
  * It is safe to do non-atomic ops on ->hardirq_context,
  * because NMI handlers may not preempt and the ops are
@@ -117,6 +125,7 @@ static inline void account_system_vtime(struct task_struct *tsk)
  */
 #define __irq_enter()                                   \
         do {                                            \
+                rcu_irq_enter();                        \
                 account_system_vtime(current);          \
                 add_preempt_count(HARDIRQ_OFFSET);      \
                 trace_hardirq_enter();                  \
@@ -135,6 +144,7 @@ extern void irq_enter(void);
                 trace_hardirq_exit();                   \
                 account_system_vtime(current);          \
                 sub_preempt_count(HARDIRQ_OFFSET);      \
+                rcu_irq_exit();                         \
         } while (0)
 
 /*
diff --git a/include/linux/iommu-helper.h b/include/linux/iommu-helper.h
index 4dd4c04ff2f4..c975caf75385 100644
--- a/include/linux/iommu-helper.h
+++ b/include/linux/iommu-helper.h
@@ -1,3 +1,6 @@
+extern int iommu_is_span_boundary(unsigned int index, unsigned int nr,
+                                  unsigned long shift,
+                                  unsigned long boundary_size);
 extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
                                       unsigned long start, unsigned int nr,
                                       unsigned long shift,
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 4a6ce82ba039..0f28486f6360 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -125,11 +125,11 @@ struct jprobe {
 DECLARE_PER_CPU(struct kprobe *, current_kprobe);
 DECLARE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 
-#ifdef ARCH_SUPPORTS_KRETPROBES
+#ifdef CONFIG_KRETPROBES
 extern void arch_prepare_kretprobe(struct kretprobe_instance *ri,
                                    struct pt_regs *regs);
 extern int arch_trampoline_kprobe(struct kprobe *p);
-#else /* ARCH_SUPPORTS_KRETPROBES */
+#else /* CONFIG_KRETPROBES */
 static inline void arch_prepare_kretprobe(struct kretprobe *rp,
                                         struct pt_regs *regs)
 {
@@ -138,7 +138,7 @@ static inline int arch_trampoline_kprobe(struct kprobe *p)
 {
         return 0;
 }
-#endif /* ARCH_SUPPORTS_KRETPROBES */
+#endif /* CONFIG_KRETPROBES */
 /*
  * Function-return probe -
  * Note:
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 4de4fd2d8607..c1ec04fd000d 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -221,6 +221,7 @@ struct kvm_vapic_addr {
  * Get size for mmap(vcpu_fd)
  */
 #define KVM_GET_VCPU_MMAP_SIZE    _IO(KVMIO,   0x04) /* in bytes */
+#define KVM_GET_SUPPORTED_CPUID   _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
 
 /*
  * Extension capability list.
@@ -230,8 +231,8 @@ struct kvm_vapic_addr {
 #define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
 #define KVM_CAP_USER_MEMORY 3
 #define KVM_CAP_SET_TSS_ADDR 4
-#define KVM_CAP_EXT_CPUID 5
 #define KVM_CAP_VAPIC 6
+#define KVM_CAP_EXT_CPUID 7
 
 /*
  * ioctls for VM fds
@@ -249,7 +250,6 @@ struct kvm_vapic_addr {
 #define KVM_CREATE_VCPU           _IO(KVMIO,  0x41)
 #define KVM_GET_DIRTY_LOG         _IOW(KVMIO, 0x42, struct kvm_dirty_log)
 #define KVM_SET_MEMORY_ALIAS      _IOW(KVMIO, 0x43, struct kvm_memory_alias)
-#define KVM_GET_SUPPORTED_CPUID   _IOWR(KVMIO, 0x48, struct kvm_cpuid2)
 /* Device model IOC */
 #define KVM_CREATE_IRQCHIP        _IO(KVMIO,  0x60)
 #define KVM_IRQ_LINE              _IOW(KVMIO, 0x61, struct kvm_irq_level)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ea4764b0a2f4..928b0d59e9ba 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -107,6 +107,7 @@ struct kvm_memory_slot {
 struct kvm {
         struct mutex lock; /* protects the vcpus array and APIC accesses */
         spinlock_t mmu_lock;
+        struct rw_semaphore slots_lock;
         struct mm_struct *mm; /* userspace tied to this vm */
         int nmemslots;
         struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
diff --git a/include/linux/maple.h b/include/linux/maple.h
index 3f01e2bae1a1..d31e36ebb436 100644
--- a/include/linux/maple.h
+++ b/include/linux/maple.h
@@ -64,7 +64,6 @@ struct maple_driver {
         int (*connect) (struct maple_device * dev);
         void (*disconnect) (struct maple_device * dev);
         struct device_driver drv;
-        int registered;
 };
 
 void maple_getcond_callback(struct maple_device *dev,
diff --git a/include/linux/marker.h b/include/linux/marker.h
index 5df879dc3776..430f6adf9762 100644
--- a/include/linux/marker.h
+++ b/include/linux/marker.h
@@ -104,10 +104,16 @@ static inline void marker_update_probe_range(struct marker *begin,
 #define MARK_NOARGS " "
 
 /* To be used for string format validity checking with gcc */
-static inline void __printf(1, 2) __mark_check_format(const char *fmt, ...)
+static inline void __printf(1, 2) ___mark_check_format(const char *fmt, ...)
 {
 }
 
+#define __mark_check_format(format, args...)                            \
+        do {                                                            \
+                if (0)                                                  \
+                        ___mark_check_format(format, ## args);          \
+        } while (0)
+
 extern marker_probe_func __mark_empty_function;
 
 extern void marker_probe_cb(const struct marker *mdata,
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 04075628cb9a..8b1c4295848b 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -25,18 +25,20 @@ struct page_cgroup;
 struct page;
 struct mm_struct;
 
-#ifdef CONFIG_CGROUP_MEM_CONT
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
 
 extern void mm_init_cgroup(struct mm_struct *mm, struct task_struct *p);
 extern void mm_free_cgroup(struct mm_struct *mm);
-extern void page_assign_page_cgroup(struct page *page,
-                                        struct page_cgroup *pc);
+
+#define page_reset_bad_cgroup(page)     ((page)->page_cgroup = 0)
+
 extern struct page_cgroup *page_get_page_cgroup(struct page *page);
 extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
                                 gfp_t gfp_mask);
-extern void mem_cgroup_uncharge(struct page_cgroup *pc);
+extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm,
+                                        gfp_t gfp_mask);
 extern void mem_cgroup_uncharge_page(struct page *page);
-extern void mem_cgroup_move_lists(struct page_cgroup *pc, bool active);
+extern void mem_cgroup_move_lists(struct page *page, bool active);
 extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
                                         struct list_head *dst,
                                         unsigned long *scanned, int order,
@@ -44,11 +46,9 @@ extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
                                         struct mem_cgroup *mem_cont,
                                         int active);
 extern void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask);
-extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm,
-                                        gfp_t gfp_mask);
 int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem);
 
-#define vm_match_cgroup(mm, cgroup)     \
+#define mm_match_cgroup(mm, cgroup)     \
         ((cgroup) == rcu_dereference((mm)->mem_cgroup))
 
 extern int mem_cgroup_prepare_migration(struct page *page);
@@ -72,7 +72,7 @@ extern long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
 extern long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
                                 struct zone *zone, int priority);
 
-#else /* CONFIG_CGROUP_MEM_CONT */
+#else /* CONFIG_CGROUP_MEM_RES_CTLR */
 static inline void mm_init_cgroup(struct mm_struct *mm,
                                         struct task_struct *p)
 {
@@ -82,8 +82,7 @@ static inline void mm_free_cgroup(struct mm_struct *mm)
 {
 }
 
-static inline void page_assign_page_cgroup(struct page *page,
-                                                struct page_cgroup *pc)
+static inline void page_reset_bad_cgroup(struct page *page)
 {
 }
 
@@ -92,33 +91,27 @@ static inline struct page_cgroup *page_get_page_cgroup(struct page *page)
         return NULL;
 }
 
-static inline int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
-                                        gfp_t gfp_mask)
+static inline int mem_cgroup_charge(struct page *page,
+                                        struct mm_struct *mm, gfp_t gfp_mask)
 {
         return 0;
 }
 
-static inline void mem_cgroup_uncharge(struct page_cgroup *pc)
+static inline int mem_cgroup_cache_charge(struct page *page,
+                                        struct mm_struct *mm, gfp_t gfp_mask)
 {
+        return 0;
 }
 
 static inline void mem_cgroup_uncharge_page(struct page *page)
 {
 }
 
-static inline void mem_cgroup_move_lists(struct page_cgroup *pc,
-                                                bool active)
-{
-}
-
-static inline int mem_cgroup_cache_charge(struct page *page,
-                                                struct mm_struct *mm,
-                                                gfp_t gfp_mask)
+static inline void mem_cgroup_move_lists(struct page *page, bool active)
 {
-        return 0;
 }
 
-static inline int vm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *mem)
+static inline int mm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *mem)
 {
         return 1;
 }
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index bfee0bd1d435..af190ceab971 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -64,10 +64,7 @@ struct page {
 #if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS
             spinlock_t ptl;
 #endif
-            struct {
-                   struct kmem_cache *slab;     /* SLUB: Pointer to slab */
-                   void *end;                   /* SLUB: end marker */
-            };
+            struct kmem_cache *slab;    /* SLUB: Pointer to slab */
             struct page *first_page;    /* Compound tail pages */
         };
         union {
@@ -91,7 +88,7 @@ struct page {
         void *virtual;                  /* Kernel virtual address (NULL if
                                            not kmapped, ie. highmem) */
 #endif /* WANT_PAGE_VIRTUAL */
-#ifdef CONFIG_CGROUP_MEM_CONT
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
         unsigned long page_cgroup;
 #endif
 };
@@ -225,7 +222,7 @@ struct mm_struct {
         /* aio bits */
         rwlock_t                ioctx_list_lock;
         struct kioctx           *ioctx_list;
-#ifdef CONFIG_CGROUP_MEM_CONT
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
         struct mem_cgroup *mem_cgroup;
 #endif
 };
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 87195b62de52..f3165e7ac431 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -389,6 +389,16 @@ struct pci_driver {
 #define to_pci_driver(drv) container_of(drv, struct pci_driver, driver)
 
 /**
+ * DECLARE_PCI_DEVICE_TABLE - macro used to describe a pci device table
+ * @_table: device table name
+ *
+ * This macro is used to create a struct pci_device_id array (a device table)
+ * in a generic manner.
+ */
+#define DECLARE_PCI_DEVICE_TABLE(_table) \
+        const struct pci_device_id _table[] __devinitconst
+
+/**
  * PCI_DEVICE - macro used to describe a specific pci device
  * @vend: the 16 bit PCI Vendor ID
  * @dev: the 16 bit PCI Device ID
diff --git a/include/linux/raid/bitmap.h b/include/linux/raid/bitmap.h
index e51b531cd0b2..47fbcba11850 100644
--- a/include/linux/raid/bitmap.h
+++ b/include/linux/raid/bitmap.h
@@ -235,6 +235,8 @@ struct bitmap {
 
         unsigned long flags;
 
+        int allclean;
+
         unsigned long max_write_behind; /* write-behind mode */
         atomic_t behind_writes;
 
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index 85a068bab625..7bb6d1abf71e 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -83,6 +83,7 @@ struct mdk_rdev_s
 #define BarriersNotsupp 5               /* BIO_RW_BARRIER is not supported */
 #define AllReserved     6               /* If whole device is reserved for
                                          * one array */
+#define AutoDetected    7               /* added by auto-detect */
 
         int desc_nr;                    /* descriptor index in the superblock */
         int raid_disk;                  /* role of device in array */
diff --git a/include/linux/rcuclassic.h b/include/linux/rcuclassic.h
index 4d6624260b4c..b3dccd68629e 100644
--- a/include/linux/rcuclassic.h
+++ b/include/linux/rcuclassic.h
@@ -160,5 +160,8 @@ extern void rcu_restart_cpu(int cpu);
 extern long rcu_batches_completed(void);
 extern long rcu_batches_completed_bh(void);
 
+#define rcu_enter_nohz()        do { } while (0)
+#define rcu_exit_nohz()         do { } while (0)
+
 #endif /* __KERNEL__ */
 #endif /* __LINUX_RCUCLASSIC_H */
diff --git a/include/linux/rcupreempt.h b/include/linux/rcupreempt.h
index 60c2a033b19e..01152ed532c8 100644
--- a/include/linux/rcupreempt.h
+++ b/include/linux/rcupreempt.h
@@ -82,5 +82,27 @@ extern struct rcupreempt_trace *rcupreempt_trace_cpu(int cpu);
 
 struct softirq_action;
 
+#ifdef CONFIG_NO_HZ
+DECLARE_PER_CPU(long, dynticks_progress_counter);
+
+static inline void rcu_enter_nohz(void)
+{
+        __get_cpu_var(dynticks_progress_counter)++;
+        WARN_ON(__get_cpu_var(dynticks_progress_counter) & 0x1);
+        mb();
+}
+
+static inline void rcu_exit_nohz(void)
+{
+        mb();
+        __get_cpu_var(dynticks_progress_counter)++;
+        WARN_ON(!(__get_cpu_var(dynticks_progress_counter) & 0x1));
+}
+
+#else /* CONFIG_NO_HZ */
+#define rcu_enter_nohz()        do { } while (0)
+#define rcu_exit_nohz()         do { } while (0)
+#endif /* CONFIG_NO_HZ */
+
 #endif /* __KERNEL__ */
 #endif /* __LINUX_RCUPREEMPT_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e217d188a102..9ae4030067a9 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -242,6 +242,7 @@ struct task_struct;
 
 extern void sched_init(void);
 extern void sched_init_smp(void);
+extern asmlinkage void schedule_tail(struct task_struct *prev);
 extern void init_idle(struct task_struct *idle, int cpu);
 extern void init_idle_bootup_task(struct task_struct *idle);
 
@@ -1189,7 +1190,7 @@ struct task_struct {
         int softirq_context;
 #endif
 #ifdef CONFIG_LOCKDEP
-# define MAX_LOCK_DEPTH 30UL
+# define MAX_LOCK_DEPTH 48UL
         u64 curr_chain_key;
         int lockdep_depth;
         struct held_lock held_locks[MAX_LOCK_DEPTH];
@@ -1541,10 +1542,6 @@ extern unsigned int sysctl_sched_child_runs_first;
 extern unsigned int sysctl_sched_features;
 extern unsigned int sysctl_sched_migration_cost;
 extern unsigned int sysctl_sched_nr_migrate;
-#if defined(CONFIG_FAIR_GROUP_SCHED) && defined(CONFIG_SMP)
-extern unsigned int sysctl_sched_min_bal_int_shares;
-extern unsigned int sysctl_sched_max_bal_int_shares;
-#endif
 
 int sched_nr_latency_handler(struct ctl_table *table, int write,
                 struct file *file, void __user *buffer, size_t *length,
diff --git a/include/asm-sh/sci.h b/include/linux/serial_sci.h
index 52e73660c129..893cc53486bc 100644
--- a/include/asm-sh/sci.h
+++ b/include/linux/serial_sci.h
@@ -1,12 +1,10 @@
-#ifndef __ASM_SH_SCI_H
-#define __ASM_SH_SCI_H
+#ifndef __LINUX_SERIAL_SCI_H
+#define __LINUX_SERIAL_SCI_H
 
 #include <linux/serial_core.h>
 
 /*
- * Generic header for SuperH SCI(F)
- *
- * Do not place SH-specific parts in here, sh64 and h8300 depend on this too.
+ * Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts)
  */
 
 /* Offsets into the sci_port->irqs array */
@@ -31,4 +29,4 @@ struct plat_sci_port {
 
 int early_sci_setup(struct uart_port *port);
 
-#endif /* __ASM_SH_SCI_H */
+#endif /* __LINUX_SERIAL_SCI_H */
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 57deecc79d52..b00c1c73eb0a 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -61,7 +61,7 @@ struct kmem_cache {
         int size;               /* The size of an object including meta data */
         int objsize;            /* The size of an object without meta data */
         int offset;             /* Free pointer offset. */
-        int order;
+        int order;              /* Current preferred allocation order */
 
         /*
          * Avoid an extra cache line for UP, SMP and for the node local to
@@ -138,11 +138,11 @@ static __always_inline int kmalloc_index(size_t size)
         if (size <=        512) return 9;
         if (size <=       1024) return 10;
         if (size <=   2 * 1024) return 11;
+        if (size <=   4 * 1024) return 12;
 /*
  * The following is only needed to support architectures with a larger page
  * size than 4k.
  */
-        if (size <=   4 * 1024) return 12;
         if (size <=   8 * 1024) return 13;
         if (size <=  16 * 1024) return 14;
         if (size <=  32 * 1024) return 15;
diff --git a/include/linux/sm501-regs.h b/include/linux/sm501-regs.h
index 64236b73c724..d53642d2d899 100644
--- a/include/linux/sm501-regs.h
+++ b/include/linux/sm501-regs.h
@@ -129,11 +129,14 @@
 
 #define SM501_DEVICEID_SM501            (0x05010000)
 #define SM501_DEVICEID_IDMASK           (0xffff0000)
+#define SM501_DEVICEID_REVMASK          (0x000000ff)
 
 #define SM501_PLLCLOCK_COUNT            (0x000064)
 #define SM501_MISC_TIMING               (0x000068)
 #define SM501_CURRENT_SDRAM_CLOCK       (0x00006C)
 
+#define SM501_PROGRAMMABLE_PLL_CONTROL  (0x000074)
+
 /* GPIO base */
 #define SM501_GPIO                      (0x010000)
 #define SM501_GPIO_DATA_LOW             (0x00)
diff --git a/include/linux/sm501.h b/include/linux/sm501.h
index 932a9efee8a5..bca134544700 100644
--- a/include/linux/sm501.h
+++ b/include/linux/sm501.h
@@ -24,7 +24,8 @@ extern int sm501_unit_power(struct device *dev,
 extern unsigned long sm501_set_clock(struct device *dev,
                                      int clksrc, unsigned long freq);
 
-extern unsigned long sm501_find_clock(int clksrc, unsigned long req_freq);
+extern unsigned long sm501_find_clock(struct device *dev,
+                                      int clksrc, unsigned long req_freq);
 
 /* sm501_misc_control
  *
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 2372e2e6b527..583e0481dfa0 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -94,10 +94,9 @@ enum usb_interface_condition {
  * @altsetting: array of interface structures, one for each alternate
  *      setting that may be selected.  Each one includes a set of
  *      endpoint configurations.  They will be in no particular order.
- * @num_altsetting: number of altsettings defined.
  * @cur_altsetting: the current altsetting.
+ * @num_altsetting: number of altsettings defined.
  * @intf_assoc: interface association descriptor
- * @driver: the USB driver that is bound to this interface.
  * @minor: the minor number assigned to this interface, if this
  *      interface is bound to a driver that uses the USB major number.
  *      If this interface does not use the USB major, this field should
@@ -781,8 +780,7 @@ static inline int usb_endpoint_is_isoc_out(
         .idVendor = (vend), \
         .idProduct = (prod)
 /**
- * USB_DEVICE_VER - macro used to describe a specific usb device with a
- *              version range
+ * USB_DEVICE_VER - describe a specific usb device with a version range
  * @vend: the 16 bit USB Vendor ID
  * @prod: the 16 bit USB Product ID
  * @lo: the bcdDevice_lo value
@@ -799,8 +797,7 @@ static inline int usb_endpoint_is_isoc_out(
         .bcdDevice_hi = (hi)
 
 /**
- * USB_DEVICE_INTERFACE_PROTOCOL - macro used to describe a usb
- *              device with a specific interface protocol
+ * USB_DEVICE_INTERFACE_PROTOCOL - describe a usb device with a specific interface protocol
  * @vend: the 16 bit USB Vendor ID
  * @prod: the 16 bit USB Product ID
  * @pr: bInterfaceProtocol value
@@ -846,8 +843,7 @@ static inline int usb_endpoint_is_isoc_out(
         .bInterfaceProtocol = (pr)
 
 /**
- * USB_DEVICE_AND_INTERFACE_INFO - macro used to describe a specific usb device
- *              with a class of usb interfaces
+ * USB_DEVICE_AND_INTERFACE_INFO - describe a specific usb device with a class of usb interfaces
  * @vend: the 16 bit USB Vendor ID
  * @prod: the 16 bit USB Product ID
  * @cl: bInterfaceClass value
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 75370ec0923e..9f1b4b46151e 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -246,8 +246,7 @@ static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
 static inline void __dec_zone_page_state(struct page *page,
                         enum zone_stat_item item)
 {
-        atomic_long_dec(&page_zone(page)->vm_stat[item]);
-        atomic_long_dec(&vm_stat[item]);
+        __dec_zone_state(page_zone(page), item);
 }
 
 /*
diff --git a/init/Kconfig b/init/Kconfig
index f698a5af5007..074ac97f55e3 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -366,10 +366,29 @@ config RESOURCE_COUNTERS
           infrastructure that works with cgroups
         depends on CGROUPS
 
+config CGROUP_MEM_RES_CTLR
+        bool "Memory Resource Controller for Control Groups"
+        depends on CGROUPS && RESOURCE_COUNTERS
+        help
+          Provides a memory resource controller that manages both page cache and
+          RSS memory.
+
+          Note that setting this option increases fixed memory overhead
+          associated with each page of memory in the system by 4/8 bytes
+          and also increases cache misses because struct page on many 64bit
+          systems will not fit into a single cache line anymore.
+
+          Only enable when you're ok with these trade offs and really
+          sure you need the memory resource controller.
+
 config SYSFS_DEPRECATED
+        bool
+
+config SYSFS_DEPRECATED_V2
         bool "Create deprecated sysfs files"
         depends on SYSFS
         default y
+        select SYSFS_DEPRECATED
         help
           This option creates deprecated symlinks such as the
           "device"-link, the <subsystem>:<name>-link, and the
@@ -382,25 +401,11 @@ config SYSFS_DEPRECATED
 
           If enabled, this option will also move any device structures
           that belong to a class, back into the /sys/class hierarchy, in
-          order to support older versions of udev.
-
-          If you are using a distro that was released in 2006 or later,
-          it should be safe to say N here.
-
-config CGROUP_MEM_CONT
-        bool "Memory controller for cgroups"
-        depends on CGROUPS && RESOURCE_COUNTERS
-        help
-          Provides a memory controller that manages both page cache and
-          RSS memory.
+          order to support older versions of udev and some userspace
+          programs.
 
-          Note that setting this option increases fixed memory overhead
-          associated with each page of memory in the system by 4/8 bytes
-          and also increases cache misses because struct page on many 64bit
-          systems will not fit into a single cache line anymore.
-
-          Only enable when you're ok with these trade offs and really
-          sure you need the memory controller.
+          If you are using a distro with the most recent userspace
+          packages, it should be safe to say N here.
 
 config PROC_PID_CPUSET
         bool "Include legacy /proc/<pid>/cpuset file"
diff --git a/init/main.c b/init/main.c
index 8b1982082ad8..fbb0167c6b8a 100644
--- a/init/main.c
+++ b/init/main.c
@@ -254,7 +254,7 @@ early_param("quiet", quiet_kernel);
 static int __init loglevel(char *str)
 {
         get_option(&str, &console_loglevel);
-        return 1;
+        return 0;
 }
 
 early_param("loglevel", loglevel);
diff --git a/kernel/audit.c b/kernel/audit.c
index 2eeea9a14240..10c4930c2bbf 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -170,7 +170,9 @@ void audit_panic(const char *message)
                         printk(KERN_ERR "audit: %s\n", message);
                 break;
         case AUDIT_FAIL_PANIC:
-                panic("audit: %s\n", message);
+                /* test audit_pid since printk is always losey, why bother? */
+                if (audit_pid)
+                        panic("audit: %s\n", message);
                 break;
         }
 }
@@ -352,6 +354,7 @@ static int kauditd_thread(void *dummy)
                                 if (err < 0) {
                                         BUG_ON(err != -ECONNREFUSED); /* Shoudn't happen */
                                         printk(KERN_ERR "audit: *NO* daemon at audit_pid=%d\n", audit_pid);
+                                        audit_log_lost("auditd dissapeared\n");
                                         audit_pid = 0;
                                 }
                         } else {
@@ -1350,17 +1353,19 @@ void audit_log_end(struct audit_buffer *ab)
         if (!audit_rate_check()) {
                 audit_log_lost("rate limit exceeded");
         } else {
+                struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
                 if (audit_pid) {
-                        struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
                         nlh->nlmsg_len = ab->skb->len - NLMSG_SPACE(0);
                         skb_queue_tail(&audit_skb_queue, ab->skb);
                         ab->skb = NULL;
                         wake_up_interruptible(&kauditd_wait);
-                } else if (printk_ratelimit()) {
-                        struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
-                        printk(KERN_NOTICE "type=%d %s\n", nlh->nlmsg_type, ab->skb->data + NLMSG_SPACE(0));
-                } else {
-                        audit_log_lost("printk limit exceeded\n");
+                } else if (nlh->nlmsg_type != AUDIT_EOE) {
+                        if (printk_ratelimit()) {
+                                printk(KERN_NOTICE "type=%d %s\n",
+                                        nlh->nlmsg_type,
+                                        ab->skb->data + NLMSG_SPACE(0));
+                        } else
+                                audit_log_lost("printk limit exceeded\n");
                 }
         }
         audit_buffer_free(ab);
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 2087d6de67ea..782262e4107d 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1070,7 +1070,7 @@ static int audit_log_single_execve_arg(struct audit_context *context,
                  * so we can be sure nothing was lost.
                  */
                 if ((i == 0) && (too_long))
-                        audit_log_format(*ab, "a%d_len=%ld ", arg_num,
+                        audit_log_format(*ab, "a%d_len=%zu ", arg_num,
                                          has_cntl ? 2*len : len);
 
                 /*
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index d8abe996e009..e9c2fb01e89b 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2232,7 +2232,6 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry,
 
         mutex_lock(&cgroup_mutex);
 
-        cgrp->flags = 0;
         INIT_LIST_HEAD(&cgrp->sibling);
         INIT_LIST_HEAD(&cgrp->children);
         INIT_LIST_HEAD(&cgrp->css_sets);
@@ -2242,6 +2241,9 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry,
         cgrp->root = parent->root;
         cgrp->top_cgroup = parent->top_cgroup;
 
+        if (notify_on_release(parent))
+                set_bit(CGRP_NOTIFY_ON_RELEASE, &cgrp->flags);
+
         for_each_subsys(root, ss) {
                 struct cgroup_subsys_state *css = ss->create(ss, cgrp);
                 if (IS_ERR(css)) {
diff --git a/kernel/exit.c b/kernel/exit.c
index 506a957b665a..cd20bf07e9e3 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -214,20 +214,19 @@ struct pid *session_of_pgrp(struct pid *pgrp)
 static int will_become_orphaned_pgrp(struct pid *pgrp, struct task_struct *ignored_task)
 {
         struct task_struct *p;
-        int ret = 1;
 
         do_each_pid_task(pgrp, PIDTYPE_PGID, p) {
-                if (p == ignored_task
-                                || p->exit_state
-                                || is_global_init(p->real_parent))
+                if ((p == ignored_task) ||
+                    (p->exit_state && thread_group_empty(p)) ||
+                    is_global_init(p->real_parent))
                         continue;
+
                 if (task_pgrp(p->real_parent) != pgrp &&
-                    task_session(p->real_parent) == task_session(p)) {
-                        ret = 0;
-                        break;
-                }
+                    task_session(p->real_parent) == task_session(p))
+                        return 0;
         } while_each_pid_task(pgrp, PIDTYPE_PGID, p);
-        return ret;     /* (sighing) "Often!" */
+
+        return 1;
 }
 
 int is_current_pgrp_orphaned(void)
@@ -255,6 +254,37 @@ static int has_stopped_jobs(struct pid *pgrp)
         return retval;
 }
 
+/*
+ * Check to see if any process groups have become orphaned as
+ * a result of our exiting, and if they have any stopped jobs,
+ * send them a SIGHUP and then a SIGCONT. (POSIX 3.2.2.2)
+ */
+static void
+kill_orphaned_pgrp(struct task_struct *tsk, struct task_struct *parent)
+{
+        struct pid *pgrp = task_pgrp(tsk);
+        struct task_struct *ignored_task = tsk;
+
+        if (!parent)
+                 /* exit: our father is in a different pgrp than
+                  * we are and we were the only connection outside.
+                  */
+                parent = tsk->real_parent;
+        else
+                /* reparent: our child is in a different pgrp than
+                 * we are, and it was the only connection outside.
+                 */
+                ignored_task = NULL;
+
+        if (task_pgrp(parent) != pgrp &&
+            task_session(parent) == task_session(tsk) &&
+            will_become_orphaned_pgrp(pgrp, ignored_task) &&
+            has_stopped_jobs(pgrp)) {
+                __kill_pgrp_info(SIGHUP, SEND_SIG_PRIV, pgrp);
+                __kill_pgrp_info(SIGCONT, SEND_SIG_PRIV, pgrp);
+        }
+}
+
 /**
  * reparent_to_kthreadd - Reparent the calling kernel thread to kthreadd
  *
@@ -635,22 +665,7 @@ reparent_thread(struct task_struct *p, struct task_struct *father, int traced)
             p->exit_signal != -1 && thread_group_empty(p))
                 do_notify_parent(p, p->exit_signal);
 
-        /*
-         * process group orphan check
-         * Case ii: Our child is in a different pgrp
-         * than we are, and it was the only connection
-         * outside, so the child pgrp is now orphaned.
-         */
-        if ((task_pgrp(p) != task_pgrp(father)) &&
-            (task_session(p) == task_session(father))) {
-                struct pid *pgrp = task_pgrp(p);
-
-                if (will_become_orphaned_pgrp(pgrp, NULL) &&
-                    has_stopped_jobs(pgrp)) {
-                        __kill_pgrp_info(SIGHUP, SEND_SIG_PRIV, pgrp);
-                        __kill_pgrp_info(SIGCONT, SEND_SIG_PRIV, pgrp);
-                }
-        }
+        kill_orphaned_pgrp(p, father);
 }
 
 /*
@@ -735,11 +750,9 @@ static void forget_original_parent(struct task_struct *father)
  * Send signals to all our closest relatives so that they know
  * to properly mourn us..
  */
-static void exit_notify(struct task_struct *tsk)
+static void exit_notify(struct task_struct *tsk, int group_dead)
 {
         int state;
-        struct task_struct *t;
-        struct pid *pgrp;
 
         /*
          * This does two things:
@@ -753,25 +766,8 @@ static void exit_notify(struct task_struct *tsk)
         exit_task_namespaces(tsk);
 
         write_lock_irq(&tasklist_lock);
-        /*
-         * Check to see if any process groups have become orphaned
-         * as a result of our exiting, and if they have any stopped
-         * jobs, send them a SIGHUP and then a SIGCONT.  (POSIX 3.2.2.2)
-         *
-         * Case i: Our father is in a different pgrp than we are
-         * and we were the only connection outside, so our pgrp
-         * is about to become orphaned.
-         */
-        t = tsk->real_parent;
-
-        pgrp = task_pgrp(tsk);
-        if ((task_pgrp(t) != pgrp) &&
-            (task_session(t) == task_session(tsk)) &&
-            will_become_orphaned_pgrp(pgrp, tsk) &&
-            has_stopped_jobs(pgrp)) {
-                __kill_pgrp_info(SIGHUP, SEND_SIG_PRIV, pgrp);
-                __kill_pgrp_info(SIGCONT, SEND_SIG_PRIV, pgrp);
-        }
+        if (group_dead)
+                kill_orphaned_pgrp(tsk->group_leader, NULL);
 
         /* Let father know we died
          *
@@ -788,8 +784,8 @@ static void exit_notify(struct task_struct *tsk)
          * the same after a fork.
          */
         if (tsk->exit_signal != SIGCHLD && tsk->exit_signal != -1 &&
-            ( tsk->parent_exec_id != t->self_exec_id  ||
-              tsk->self_exec_id != tsk->parent_exec_id)
+            (tsk->parent_exec_id != tsk->real_parent->self_exec_id ||
+             tsk->self_exec_id != tsk->parent_exec_id)
             && !capable(CAP_KILL))
                 tsk->exit_signal = SIGCHLD;
 
@@ -986,7 +982,7 @@ NORET_TYPE void do_exit(long code)
                 module_put(tsk->binfmt->module);
 
         proc_exit_connector(tsk);
-        exit_notify(tsk);
+        exit_notify(tsk, group_dead);
 #ifdef CONFIG_NUMA
         mpol_free(tsk->mempolicy);
         tsk->mempolicy = NULL;
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 7a86e6432338..fcfb580c3afc 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -498,27 +498,36 @@ static int __kprobes in_kprobes_functions(unsigned long addr)
         return 0;
 }
 
+/*
+ * If we have a symbol_name argument, look it up and add the offset field
+ * to it. This way, we can specify a relative address to a symbol.
+ */
+static kprobe_opcode_t __kprobes *kprobe_addr(struct kprobe *p)
+{
+        kprobe_opcode_t *addr = p->addr;
+        if (p->symbol_name) {
+                if (addr)
+                        return NULL;
+                kprobe_lookup_name(p->symbol_name, addr);
+        }
+
+        if (!addr)
+                return NULL;
+        return (kprobe_opcode_t *)(((char *)addr) + p->offset);
+}
+
 static int __kprobes __register_kprobe(struct kprobe *p,
         unsigned long called_from)
 {
         int ret = 0;
         struct kprobe *old_p;
         struct module *probed_mod;
+        kprobe_opcode_t *addr;
 
-        /*
-         * If we have a symbol_name argument look it up,
-         * and add it to the address.  That way the addr
-         * field can either be global or relative to a symbol.
-         */
-        if (p->symbol_name) {
-                if (p->addr)
-                        return -EINVAL;
-                kprobe_lookup_name(p->symbol_name, p->addr);
-        }
-
-        if (!p->addr)
+        addr = kprobe_addr(p);
+        if (!addr)
                 return -EINVAL;
-        p->addr = (kprobe_opcode_t *)(((char *)p->addr)+ p->offset);
+        p->addr = addr;
 
         if (!kernel_text_address((unsigned long) p->addr) ||
             in_kprobes_functions((unsigned long) p->addr))
@@ -678,8 +687,7 @@ void __kprobes unregister_jprobe(struct jprobe *jp)
         unregister_kprobe(&jp->kp);
 }
 
-#ifdef ARCH_SUPPORTS_KRETPROBES
-
+#ifdef CONFIG_KRETPROBES
 /*
  * This kprobe pre_handler is registered with every kretprobe. When probe
  * hits it will set up the return probe.
@@ -722,12 +730,12 @@ int __kprobes register_kretprobe(struct kretprobe *rp)
         int ret = 0;
         struct kretprobe_instance *inst;
         int i;
-        void *addr = rp->kp.addr;
+        void *addr;
 
         if (kretprobe_blacklist_size) {
-                if (addr == NULL)
-                        kprobe_lookup_name(rp->kp.symbol_name, addr);
-                addr += rp->kp.offset;
+                addr = kprobe_addr(&rp->kp);
+                if (!addr)
+                        return -EINVAL;
 
                 for (i = 0; kretprobe_blacklist[i].name != NULL; i++) {
                         if (kretprobe_blacklist[i].addr == addr)
@@ -769,8 +777,7 @@ int __kprobes register_kretprobe(struct kretprobe *rp)
         return ret;
 }
 
-#else /* ARCH_SUPPORTS_KRETPROBES */
-
+#else /* CONFIG_KRETPROBES */
 int __kprobes register_kretprobe(struct kretprobe *rp)
 {
         return -ENOSYS;
@@ -781,8 +788,7 @@ static int __kprobes pre_handler_kretprobe(struct kprobe *p,
 {
         return 0;
 }
-
-#endif /* ARCH_SUPPORTS_KRETPROBES */
+#endif /* CONFIG_KRETPROBES */
 
 void __kprobes unregister_kretprobe(struct kretprobe *rp)
 {
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 3574379f4d62..81a4e4a3f087 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -779,6 +779,10 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
          * parallel walking of the hash-list safe:
          */
         list_add_tail_rcu(&class->hash_entry, hash_head);
+        /*
+         * Add it to the global list of classes:
+         */
+        list_add_tail_rcu(&class->lock_entry, &all_lock_classes);
 
         if (verbose(class)) {
                 graph_unlock();
@@ -2282,10 +2286,6 @@ static int mark_lock(struct task_struct *curr, struct held_lock *this,
                         return 0;
                 break;
         case LOCK_USED:
-                /*
-                 * Add it to the global list of classes:
-                 */
-                list_add_tail_rcu(&this->class->lock_entry, &all_lock_classes);
                 debug_atomic_dec(&nr_unused_locks);
                 break;
         default:
diff --git a/kernel/marker.c b/kernel/marker.c
index 50effc01d9a2..48a4ea5afffd 100644
--- a/kernel/marker.c
+++ b/kernel/marker.c
@@ -698,14 +698,12 @@ int marker_probe_unregister(const char *name,
 {
         struct marker_entry *entry;
         struct marker_probe_closure *old;
-        int ret = 0;
+        int ret = -ENOENT;
 
         mutex_lock(&markers_mutex);
         entry = get_marker(name);
-        if (!entry) {
-                ret = -ENOENT;
+        if (!entry)
                 goto end;
-        }
         if (entry->rcu_pending)
                 rcu_barrier();
         old = marker_entry_remove_probe(entry, probe, probe_private);
@@ -713,12 +711,15 @@ int marker_probe_unregister(const char *name,
         marker_update_probes();         /* may update entry */
         mutex_lock(&markers_mutex);
         entry = get_marker(name);
+        if (!entry)
+                goto end;
         entry->oldptr = old;
         entry->rcu_pending = 1;
         /* write rcu_pending before calling the RCU callback */
         smp_wmb();
         call_rcu(&entry->rcu, free_old_closure);
         remove_marker(name);    /* Ignore busy error message */
+        ret = 0;
 end:
         mutex_unlock(&markers_mutex);
         return ret;
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 7c2118f9597f..f1d0b345c9ba 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -75,22 +75,15 @@ void refrigerator(void)
         __set_current_state(save);
 }
 
-static void fake_signal_wake_up(struct task_struct *p, int resume)
+static void fake_signal_wake_up(struct task_struct *p)
 {
         unsigned long flags;
 
         spin_lock_irqsave(&p->sighand->siglock, flags);
-        signal_wake_up(p, resume);
+        signal_wake_up(p, 0);
         spin_unlock_irqrestore(&p->sighand->siglock, flags);
 }
 
-static void send_fake_signal(struct task_struct *p)
-{
-        if (task_is_stopped(p))
-                force_sig_specific(SIGSTOP, p);
-        fake_signal_wake_up(p, task_is_stopped(p));
-}
-
 static int has_mm(struct task_struct *p)
 {
         return (p->mm && !(p->flags & PF_BORROWED_MM));
@@ -121,7 +114,7 @@ static int freeze_task(struct task_struct *p, int with_mm_only)
         if (freezing(p)) {
                 if (has_mm(p)) {
                         if (!signal_pending(p))
-                                fake_signal_wake_up(p, 0);
+                                fake_signal_wake_up(p);
                 } else {
                         if (with_mm_only)
                                 ret = 0;
@@ -135,7 +128,7 @@ static int freeze_task(struct task_struct *p, int with_mm_only)
                 } else {
                         if (has_mm(p)) {
                                 set_freeze_flag(p);
-                                send_fake_signal(p);
+                                fake_signal_wake_up(p);
                         } else {
                                 if (with_mm_only) {
                                         ret = 0;
@@ -182,15 +175,17 @@ static int try_to_freeze_tasks(int freeze_user_space)
                         if (frozen(p) || !freezeable(p))
                                 continue;
 
-                        if (task_is_traced(p) && frozen(p->parent)) {
-                                cancel_freezing(p);
-                                continue;
-                        }
-
                         if (!freeze_task(p, freeze_user_space))
                                 continue;
 
-                        if (!freezer_should_skip(p))
+                        /*
+                         * Now that we've done set_freeze_flag, don't
+                         * perturb a task in TASK_STOPPED or TASK_TRACED.
+                         * It is "frozen enough".  If the task does wake
+                         * up, it will immediately call try_to_freeze.
+                         */
+                        if (!task_is_stopped_or_traced(p) &&
+                            !freezer_should_skip(p))
                                 todo++;
                 } while_each_thread(g, p);
                 read_unlock(&tasklist_lock);
diff --git a/kernel/printk.c b/kernel/printk.c
index bee36100f110..9adc2a473e6e 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -666,7 +666,7 @@ asmlinkage int vprintk(const char *fmt, va_list args)
         }
         /* Emit the output into the temporary buffer */
         printed_len += vscnprintf(printk_buf + printed_len,
-                                  sizeof(printk_buf), fmt, args);
+                                  sizeof(printk_buf) - printed_len, fmt, args);
 
         /*
          * Copy the output into log_buf.  If the caller didn't provide
diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c
index 987cfb7ade89..e9517014b57c 100644
--- a/kernel/rcupreempt.c
+++ b/kernel/rcupreempt.c
@@ -23,6 +23,10 @@
  *              to Suparna Bhattacharya for pushing me completely away
  *              from atomic instructions on the read side.
  *
+ *  - Added handling of Dynamic Ticks
+ *      Copyright 2007 - Paul E. Mckenney <paulmck@us.ibm.com>
+ *                     - Steven Rostedt <srostedt@redhat.com>
+ *
  * Papers:  http://www.rdrop.com/users/paulmck/RCU
  *
  * Design Document: http://lwn.net/Articles/253651/
@@ -409,6 +413,212 @@ static void __rcu_advance_callbacks(struct rcu_data *rdp)
         }
 }
 
+#ifdef CONFIG_NO_HZ
+
+DEFINE_PER_CPU(long, dynticks_progress_counter) = 1;
+static DEFINE_PER_CPU(long, rcu_dyntick_snapshot);
+static DEFINE_PER_CPU(int, rcu_update_flag);
+
+/**
+ * rcu_irq_enter - Called from Hard irq handlers and NMI/SMI.
+ *
+ * If the CPU was idle with dynamic ticks active, this updates the
+ * dynticks_progress_counter to let the RCU handling know that the
+ * CPU is active.
+ */
+void rcu_irq_enter(void)
+{
+        int cpu = smp_processor_id();
+
+        if (per_cpu(rcu_update_flag, cpu))
+                per_cpu(rcu_update_flag, cpu)++;
+
+        /*
+         * Only update if we are coming from a stopped ticks mode
+         * (dynticks_progress_counter is even).
+         */
+        if (!in_interrupt() &&
+            (per_cpu(dynticks_progress_counter, cpu) & 0x1) == 0) {
+                /*
+                 * The following might seem like we could have a race
+                 * with NMI/SMIs. But this really isn't a problem.
+                 * Here we do a read/modify/write, and the race happens
+                 * when an NMI/SMI comes in after the read and before
+                 * the write. But NMI/SMIs will increment this counter
+                 * twice before returning, so the zero bit will not
+                 * be corrupted by the NMI/SMI which is the most important
+                 * part.
+                 *
+                 * The only thing is that we would bring back the counter
+                 * to a postion that it was in during the NMI/SMI.
+                 * But the zero bit would be set, so the rest of the
+                 * counter would again be ignored.
+                 *
+                 * On return from the IRQ, the counter may have the zero
+                 * bit be 0 and the counter the same as the return from
+                 * the NMI/SMI. If the state machine was so unlucky to
+                 * see that, it still doesn't matter, since all
+                 * RCU read-side critical sections on this CPU would
+                 * have already completed.
+                 */
+                per_cpu(dynticks_progress_counter, cpu)++;
+                /*
+                 * The following memory barrier ensures that any
+                 * rcu_read_lock() primitives in the irq handler
+                 * are seen by other CPUs to follow the above
+                 * increment to dynticks_progress_counter. This is
+                 * required in order for other CPUs to correctly
+                 * determine when it is safe to advance the RCU
+                 * grace-period state machine.
+                 */
+                smp_mb(); /* see above block comment. */
+                /*
+                 * Since we can't determine the dynamic tick mode from
+                 * the dynticks_progress_counter after this routine,
+                 * we use a second flag to acknowledge that we came
+                 * from an idle state with ticks stopped.
+                 */
+                per_cpu(rcu_update_flag, cpu)++;
+                /*
+                 * If we take an NMI/SMI now, they will also increment
+                 * the rcu_update_flag, and will not update the
+                 * dynticks_progress_counter on exit. That is for
+                 * this IRQ to do.
+                 */
+        }
+}
+
+/**
+ * rcu_irq_exit - Called from exiting Hard irq context.
+ *
+ * If the CPU was idle with dynamic ticks active, update the
+ * dynticks_progress_counter to put let the RCU handling be
+ * aware that the CPU is going back to idle with no ticks.
+ */
+void rcu_irq_exit(void)
+{
+        int cpu = smp_processor_id();
+
+        /*
+         * rcu_update_flag is set if we interrupted the CPU
+         * when it was idle with ticks stopped.
+         * Once this occurs, we keep track of interrupt nesting
+         * because a NMI/SMI could also come in, and we still
+         * only want the IRQ that started the increment of the
+         * dynticks_progress_counter to be the one that modifies
+         * it on exit.
+         */
+        if (per_cpu(rcu_update_flag, cpu)) {
+                if (--per_cpu(rcu_update_flag, cpu))
+                        return;
+
+                /* This must match the interrupt nesting */
+                WARN_ON(in_interrupt());
+
+                /*
+                 * If an NMI/SMI happens now we are still
+                 * protected by the dynticks_progress_counter being odd.
+                 */
+
+                /*
+                 * The following memory barrier ensures that any
+                 * rcu_read_unlock() primitives in the irq handler
+                 * are seen by other CPUs to preceed the following
+                 * increment to dynticks_progress_counter. This
+                 * is required in order for other CPUs to determine
+                 * when it is safe to advance the RCU grace-period
+                 * state machine.
+                 */
+                smp_mb(); /* see above block comment. */
+                per_cpu(dynticks_progress_counter, cpu)++;
+                WARN_ON(per_cpu(dynticks_progress_counter, cpu) & 0x1);
+        }
+}
+
+static void dyntick_save_progress_counter(int cpu)
+{
+        per_cpu(rcu_dyntick_snapshot, cpu) =
+                per_cpu(dynticks_progress_counter, cpu);
+}
+
+static inline int
+rcu_try_flip_waitack_needed(int cpu)
+{
+        long curr;
+        long snap;
+
+        curr = per_cpu(dynticks_progress_counter, cpu);
+        snap = per_cpu(rcu_dyntick_snapshot, cpu);
+        smp_mb(); /* force ordering with cpu entering/leaving dynticks. */
+
+        /*
+         * If the CPU remained in dynticks mode for the entire time
+         * and didn't take any interrupts, NMIs, SMIs, or whatever,
+         * then it cannot be in the middle of an rcu_read_lock(), so
+         * the next rcu_read_lock() it executes must use the new value
+         * of the counter.  So we can safely pretend that this CPU
+         * already acknowledged the counter.
+         */
+
+        if ((curr == snap) && ((curr & 0x1) == 0))
+                return 0;
+
+        /*
+         * If the CPU passed through or entered a dynticks idle phase with
+         * no active irq handlers, then, as above, we can safely pretend
+         * that this CPU already acknowledged the counter.
+         */
+
+        if ((curr - snap) > 2 || (snap & 0x1) == 0)
+                return 0;
+
+        /* We need this CPU to explicitly acknowledge the counter flip. */
+
+        return 1;
+}
+
+static inline int
+rcu_try_flip_waitmb_needed(int cpu)
+{
+        long curr;
+        long snap;
+
+        curr = per_cpu(dynticks_progress_counter, cpu);
+        snap = per_cpu(rcu_dyntick_snapshot, cpu);
+        smp_mb(); /* force ordering with cpu entering/leaving dynticks. */
+
+        /*
+         * If the CPU remained in dynticks mode for the entire time
+         * and didn't take any interrupts, NMIs, SMIs, or whatever,
+         * then it cannot have executed an RCU read-side critical section
+         * during that time, so there is no need for it to execute a
+         * memory barrier.
+         */
+
+        if ((curr == snap) && ((curr & 0x1) == 0))
+                return 0;
+
+        /*
+         * If the CPU either entered or exited an outermost interrupt,
+         * SMI, NMI, or whatever handler, then we know that it executed
+         * a memory barrier when doing so.  So we don't need another one.
+         */
+        if (curr != snap)
+                return 0;
+
+        /* We need the CPU to execute a memory barrier. */
+
+        return 1;
+}
+
+#else /* !CONFIG_NO_HZ */
+
+# define dyntick_save_progress_counter(cpu)     do { } while (0)
+# define rcu_try_flip_waitack_needed(cpu)       (1)
+# define rcu_try_flip_waitmb_needed(cpu)        (1)
+
+#endif /* CONFIG_NO_HZ */
+
 /*
  * Get here when RCU is idle.  Decide whether we need to
  * move out of idle state, and return non-zero if so.
@@ -447,8 +657,10 @@ rcu_try_flip_idle(void)
 
         /* Now ask each CPU for acknowledgement of the flip. */
 
-        for_each_cpu_mask(cpu, rcu_cpu_online_map)
+        for_each_cpu_mask(cpu, rcu_cpu_online_map) {
                 per_cpu(rcu_flip_flag, cpu) = rcu_flipped;
+                dyntick_save_progress_counter(cpu);
+        }
 
         return 1;
 }
@@ -464,7 +676,8 @@ rcu_try_flip_waitack(void)
 
         RCU_TRACE_ME(rcupreempt_trace_try_flip_a1);
         for_each_cpu_mask(cpu, rcu_cpu_online_map)
-                if (per_cpu(rcu_flip_flag, cpu) != rcu_flip_seen) {
+                if (rcu_try_flip_waitack_needed(cpu) &&
+                    per_cpu(rcu_flip_flag, cpu) != rcu_flip_seen) {
                         RCU_TRACE_ME(rcupreempt_trace_try_flip_ae1);
                         return 0;
                 }
@@ -509,8 +722,10 @@ rcu_try_flip_waitzero(void)
         smp_mb();  /*  ^^^^^^^^^^^^ */
 
         /* Call for a memory barrier from each CPU. */
-        for_each_cpu_mask(cpu, rcu_cpu_online_map)
+        for_each_cpu_mask(cpu, rcu_cpu_online_map) {
                 per_cpu(rcu_mb_flag, cpu) = rcu_mb_needed;
+                dyntick_save_progress_counter(cpu);
+        }
 
         RCU_TRACE_ME(rcupreempt_trace_try_flip_z2);
         return 1;
@@ -528,7 +743,8 @@ rcu_try_flip_waitmb(void)
 
         RCU_TRACE_ME(rcupreempt_trace_try_flip_m1);
         for_each_cpu_mask(cpu, rcu_cpu_online_map)
-                if (per_cpu(rcu_mb_flag, cpu) != rcu_mb_done) {
+                if (rcu_try_flip_waitmb_needed(cpu) &&
+                    per_cpu(rcu_mb_flag, cpu) != rcu_mb_done) {
                         RCU_TRACE_ME(rcupreempt_trace_try_flip_me1);
                         return 0;
                 }
@@ -702,8 +918,9 @@ void rcu_offline_cpu(int cpu)
          * fix.
          */
 
+        local_irq_save(flags);
         rdp = RCU_DATA_ME();
-        spin_lock_irqsave(&rdp->lock, flags);
+        spin_lock(&rdp->lock);
         *rdp->nexttail = list;
         if (list)
                 rdp->nexttail = tail;
@@ -735,9 +952,11 @@ static void rcu_process_callbacks(struct softirq_action *unused)
 {
         unsigned long flags;
         struct rcu_head *next, *list;
-        struct rcu_data *rdp = RCU_DATA_ME();
+        struct rcu_data *rdp;
 
-        spin_lock_irqsave(&rdp->lock, flags);
+        local_irq_save(flags);
+        rdp = RCU_DATA_ME();
+        spin_lock(&rdp->lock);
         list = rdp->donelist;
         if (list == NULL) {
                 spin_unlock_irqrestore(&rdp->lock, flags);
diff --git a/kernel/res_counter.c b/kernel/res_counter.c
index 16cbec2d5d60..efbfc0fc232f 100644
--- a/kernel/res_counter.c
+++ b/kernel/res_counter.c
@@ -113,6 +113,7 @@ ssize_t res_counter_write(struct res_counter *counter, int member,
 
         ret = -EINVAL;
 
+        strstrip(buf);
         if (write_strategy) {
                 if (write_strategy(buf, &tmp)) {
                         goto out_free;
diff --git a/kernel/sched.c b/kernel/sched.c
index b387a8de26a5..dcd553cc4ee8 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -174,41 +174,6 @@ struct task_group {
         struct sched_entity **se;
         /* runqueue "owned" by this group on each cpu */
         struct cfs_rq **cfs_rq;
-
-        /*
-         * shares assigned to a task group governs how much of cpu bandwidth
-         * is allocated to the group. The more shares a group has, the more is
-         * the cpu bandwidth allocated to it.
-         *
-         * For ex, lets say that there are three task groups, A, B and C which
-         * have been assigned shares 1000, 2000 and 3000 respectively. Then,
-         * cpu bandwidth allocated by the scheduler to task groups A, B and C
-         * should be:
-         *
-         *      Bw(A) = 1000/(1000+2000+3000) * 100 = 16.66%
-         *      Bw(B) = 2000/(1000+2000+3000) * 100 = 33.33%
-         *      Bw(C) = 3000/(1000+2000+3000) * 100 = 50%
-         *
-         * The weight assigned to a task group's schedulable entities on every
-         * cpu (task_group.se[a_cpu]->load.weight) is derived from the task
-         * group's shares. For ex: lets say that task group A has been
-         * assigned shares of 1000 and there are two CPUs in a system. Then,
-         *
-         *  tg_A->se[0]->load.weight = tg_A->se[1]->load.weight = 1000;
-         *
-         * Note: It's not necessary that each of a task's group schedulable
-         *       entity have the same weight on all CPUs. If the group
-         *       has 2 of its tasks on CPU0 and 1 task on CPU1, then a
-         *       better distribution of weight could be:
-         *
-         *      tg_A->se[0]->load.weight = 2/3 * 2000 = 1333
-         *      tg_A->se[1]->load.weight = 1/2 * 2000 =  667
-         *
-         * rebalance_shares() is responsible for distributing the shares of a
-         * task groups like this among the group's schedulable entities across
-         * cpus.
-         *
-         */
         unsigned long shares;
 #endif
 
@@ -250,22 +215,12 @@ static DEFINE_SPINLOCK(task_group_lock);
 static DEFINE_MUTEX(doms_cur_mutex);
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
-#ifdef CONFIG_SMP
-/* kernel thread that runs rebalance_shares() periodically */
-static struct task_struct *lb_monitor_task;
-static int load_balance_monitor(void *unused);
-#endif
-
-static void set_se_shares(struct sched_entity *se, unsigned long shares);
-
 #ifdef CONFIG_USER_SCHED
 # define INIT_TASK_GROUP_LOAD   (2*NICE_0_LOAD)
 #else
 # define INIT_TASK_GROUP_LOAD   NICE_0_LOAD
 #endif
 
-#define MIN_GROUP_SHARES        2
-
 static int init_task_group_load = INIT_TASK_GROUP_LOAD;
 #endif
 
@@ -668,6 +623,8 @@ const_debug unsigned int sysctl_sched_nr_migrate = 32;
  */
 unsigned int sysctl_sched_rt_period = 1000000;
 
+static __read_mostly int scheduler_running;
+
 /*
  * part of the period that we allow rt tasks to run in us.
  * default: 0.95s
@@ -689,14 +646,16 @@ unsigned long long cpu_clock(int cpu)
         unsigned long flags;
         struct rq *rq;
 
-        local_irq_save(flags);
-        rq = cpu_rq(cpu);
         /*
          * Only call sched_clock() if the scheduler has already been
          * initialized (some code might call cpu_clock() very early):
          */
-        if (rq->idle)
-                update_rq_clock(rq);
+        if (unlikely(!scheduler_running))
+                return 0;
+
+        local_irq_save(flags);
+        rq = cpu_rq(cpu);
+        update_rq_clock(rq);
         now = rq->clock;
         local_irq_restore(flags);
 
@@ -1241,16 +1200,6 @@ static void cpuacct_charge(struct task_struct *tsk, u64 cputime);
 static inline void cpuacct_charge(struct task_struct *tsk, u64 cputime) {}
 #endif
 
-static inline void inc_cpu_load(struct rq *rq, unsigned long load)
-{
-        update_load_add(&rq->load, load);
-}
-
-static inline void dec_cpu_load(struct rq *rq, unsigned long load)
-{
-        update_load_sub(&rq->load, load);
-}
-
 #ifdef CONFIG_SMP
 static unsigned long source_load(int cpu, int type);
 static unsigned long target_load(int cpu, int type);
@@ -1268,14 +1217,26 @@ static int task_hot(struct task_struct *p, u64 now, struct sched_domain *sd);
 
 #define sched_class_highest (&rt_sched_class)
 
-static void inc_nr_running(struct rq *rq)
+static inline void inc_load(struct rq *rq, const struct task_struct *p)
+{
+        update_load_add(&rq->load, p->se.load.weight);
+}
+
+static inline void dec_load(struct rq *rq, const struct task_struct *p)
+{
+        update_load_sub(&rq->load, p->se.load.weight);
+}
+
+static void inc_nr_running(struct task_struct *p, struct rq *rq)
 {
         rq->nr_running++;
+        inc_load(rq, p);
 }
 
-static void dec_nr_running(struct rq *rq)
+static void dec_nr_running(struct task_struct *p, struct rq *rq)
 {
         rq->nr_running--;
+        dec_load(rq, p);
 }
 
 static void set_load_weight(struct task_struct *p)
@@ -1367,7 +1328,7 @@ static void activate_task(struct rq *rq, struct task_struct *p, int wakeup)
                 rq->nr_uninterruptible--;
 
         enqueue_task(rq, p, wakeup);
-        inc_nr_running(rq);
+        inc_nr_running(p, rq);
 }
 
 /*
@@ -1379,7 +1340,7 @@ static void deactivate_task(struct rq *rq, struct task_struct *p, int sleep)
                 rq->nr_uninterruptible++;
 
         dequeue_task(rq, p, sleep);
-        dec_nr_running(rq);
+        dec_nr_running(p, rq);
 }
 
 /**
@@ -2019,7 +1980,7 @@ void wake_up_new_task(struct task_struct *p, unsigned long clone_flags)
                  * management (if any):
                  */
                 p->sched_class->task_new(rq, p);
-                inc_nr_running(rq);
+                inc_nr_running(p, rq);
         }
         check_preempt_curr(rq, p);
 #ifdef CONFIG_SMP
@@ -3885,7 +3846,7 @@ pick_next_task(struct rq *rq, struct task_struct *prev)
 asmlinkage void __sched schedule(void)
 {
         struct task_struct *prev, *next;
-        long *switch_count;
+        unsigned long *switch_count;
         struct rq *rq;
         int cpu;
 
@@ -4358,8 +4319,10 @@ void set_user_nice(struct task_struct *p, long nice)
                 goto out_unlock;
         }
         on_rq = p->se.on_rq;
-        if (on_rq)
+        if (on_rq) {
                 dequeue_task(rq, p, 0);
+                dec_load(rq, p);
+        }
 
         p->static_prio = NICE_TO_PRIO(nice);
         set_load_weight(p);
@@ -4369,6 +4332,7 @@ void set_user_nice(struct task_struct *p, long nice)
 
         if (on_rq) {
                 enqueue_task(rq, p, 0);
+                inc_load(rq, p);
                 /*
                  * If the task increased its priority or is running and
                  * lowered its priority, then reschedule its CPU:
@@ -7083,21 +7047,6 @@ void __init sched_init_smp(void)
         if (set_cpus_allowed(current, non_isolated_cpus) < 0)
                 BUG();
         sched_init_granularity();
-
-#ifdef CONFIG_FAIR_GROUP_SCHED
-        if (nr_cpu_ids == 1)
-                return;
-
-        lb_monitor_task = kthread_create(load_balance_monitor, NULL,
-                                         "group_balance");
-        if (!IS_ERR(lb_monitor_task)) {
-                lb_monitor_task->flags |= PF_NOFREEZE;
-                wake_up_process(lb_monitor_task);
-        } else {
-                printk(KERN_ERR "Could not create load balance monitor thread"
-                        "(error = %ld) \n", PTR_ERR(lb_monitor_task));
-        }
-#endif
 }
 #else
 void __init sched_init_smp(void)
@@ -7284,6 +7233,8 @@ void __init sched_init(void)
          * During early bootup we pretend to be a normal task:
          */
         current->sched_class = &fair_sched_class;
+
+        scheduler_running = 1;
 }
 
 #ifdef CONFIG_DEBUG_SPINLOCK_SLEEP
@@ -7418,157 +7369,6 @@ void set_curr_task(int cpu, struct task_struct *p)
 
 #ifdef CONFIG_GROUP_SCHED
 
-#if defined CONFIG_FAIR_GROUP_SCHED && defined CONFIG_SMP
-/*
- * distribute shares of all task groups among their schedulable entities,
- * to reflect load distribution across cpus.
- */
-static int rebalance_shares(struct sched_domain *sd, int this_cpu)
-{
-        struct cfs_rq *cfs_rq;
-        struct rq *rq = cpu_rq(this_cpu);
-        cpumask_t sdspan = sd->span;
-        int balanced = 1;
-
-        /* Walk thr' all the task groups that we have */
-        for_each_leaf_cfs_rq(rq, cfs_rq) {
-                int i;
-                unsigned long total_load = 0, total_shares;
-                struct task_group *tg = cfs_rq->tg;
-
-                /* Gather total task load of this group across cpus */
-                for_each_cpu_mask(i, sdspan)
-                        total_load += tg->cfs_rq[i]->load.weight;
-
-                /* Nothing to do if this group has no load */
-                if (!total_load)
-                        continue;
-
-                /*
-                 * tg->shares represents the number of cpu shares the task group
-                 * is eligible to hold on a single cpu. On N cpus, it is
-                 * eligible to hold (N * tg->shares) number of cpu shares.
-                 */
-                total_shares = tg->shares * cpus_weight(sdspan);
-
-                /*
-                 * redistribute total_shares across cpus as per the task load
-                 * distribution.
-                 */
-                for_each_cpu_mask(i, sdspan) {
-                        unsigned long local_load, local_shares;
-
-                        local_load = tg->cfs_rq[i]->load.weight;
-                        local_shares = (local_load * total_shares) / total_load;
-                        if (!local_shares)
-                                local_shares = MIN_GROUP_SHARES;
-                        if (local_shares == tg->se[i]->load.weight)
-                                continue;
-
-                        spin_lock_irq(&cpu_rq(i)->lock);
-                        set_se_shares(tg->se[i], local_shares);
-                        spin_unlock_irq(&cpu_rq(i)->lock);
-                        balanced = 0;
-                }
-        }
-
-        return balanced;
-}
-
-/*
- * How frequently should we rebalance_shares() across cpus?
- *
- * The more frequently we rebalance shares, the more accurate is the fairness
- * of cpu bandwidth distribution between task groups. However higher frequency
- * also implies increased scheduling overhead.
- *
- * sysctl_sched_min_bal_int_shares represents the minimum interval between
- * consecutive calls to rebalance_shares() in the same sched domain.
- *
- * sysctl_sched_max_bal_int_shares represents the maximum interval between
- * consecutive calls to rebalance_shares() in the same sched domain.
- *
- * These settings allows for the appropriate trade-off between accuracy of
- * fairness and the associated overhead.
- *
- */
-
-/* default: 8ms, units: milliseconds */
-const_debug unsigned int sysctl_sched_min_bal_int_shares = 8;
-
-/* default: 128ms, units: milliseconds */
-const_debug unsigned int sysctl_sched_max_bal_int_shares = 128;
-
-/* kernel thread that runs rebalance_shares() periodically */
-static int load_balance_monitor(void *unused)
-{
-        unsigned int timeout = sysctl_sched_min_bal_int_shares;
-        struct sched_param schedparm;
-        int ret;
-
-        /*
-         * We don't want this thread's execution to be limited by the shares
-         * assigned to default group (init_task_group). Hence make it run
-         * as a SCHED_RR RT task at the lowest priority.
-         */
-        schedparm.sched_priority = 1;
-        ret = sched_setscheduler(current, SCHED_RR, &schedparm);
-        if (ret)
-                printk(KERN_ERR "Couldn't set SCHED_RR policy for load balance"
-                                " monitor thread (error = %d) \n", ret);
-
-        while (!kthread_should_stop()) {
-                int i, cpu, balanced = 1;
-
-                /* Prevent cpus going down or coming up */
-                get_online_cpus();
-                /* lockout changes to doms_cur[] array */
-                lock_doms_cur();
-                /*
-                 * Enter a rcu read-side critical section to safely walk rq->sd
-                 * chain on various cpus and to walk task group list
-                 * (rq->leaf_cfs_rq_list) in rebalance_shares().
-                 */
-                rcu_read_lock();
-
-                for (i = 0; i < ndoms_cur; i++) {
-                        cpumask_t cpumap = doms_cur[i];
-                        struct sched_domain *sd = NULL, *sd_prev = NULL;
-
-                        cpu = first_cpu(cpumap);
-
-                        /* Find the highest domain at which to balance shares */
-                        for_each_domain(cpu, sd) {
-                                if (!(sd->flags & SD_LOAD_BALANCE))
-                                        continue;
-                                sd_prev = sd;
-                        }
-
-                        sd = sd_prev;
-                        /* sd == NULL? No load balance reqd in this domain */
-                        if (!sd)
-                                continue;
-
-                        balanced &= rebalance_shares(sd, cpu);
-                }
-
-                rcu_read_unlock();
-
-                unlock_doms_cur();
-                put_online_cpus();
-
-                if (!balanced)
-                        timeout = sysctl_sched_min_bal_int_shares;
-                else if (timeout < sysctl_sched_max_bal_int_shares)
-                        timeout *= 2;
-
-                msleep_interruptible(timeout);
-        }
-
-        return 0;
-}
-#endif  /* CONFIG_SMP */
-
 #ifdef CONFIG_FAIR_GROUP_SCHED
 static void free_fair_sched_group(struct task_group *tg)
 {
@@ -7835,29 +7635,25 @@ void sched_move_task(struct task_struct *tsk)
 }
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
-/* rq->lock to be locked by caller */
 static void set_se_shares(struct sched_entity *se, unsigned long shares)
 {
         struct cfs_rq *cfs_rq = se->cfs_rq;
         struct rq *rq = cfs_rq->rq;
         int on_rq;
 
-        if (!shares)
-                shares = MIN_GROUP_SHARES;
+        spin_lock_irq(&rq->lock);
 
         on_rq = se->on_rq;
-        if (on_rq) {
+        if (on_rq)
                 dequeue_entity(cfs_rq, se, 0);
-                dec_cpu_load(rq, se->load.weight);
-        }
 
         se->load.weight = shares;
         se->load.inv_weight = div64_64((1ULL<<32), shares);
 
-        if (on_rq) {
+        if (on_rq)
                 enqueue_entity(cfs_rq, se, 0);
-                inc_cpu_load(rq, se->load.weight);
-        }
+
+        spin_unlock_irq(&rq->lock);
 }
 
 static DEFINE_MUTEX(shares_mutex);
@@ -7867,18 +7663,18 @@ int sched_group_set_shares(struct task_group *tg, unsigned long shares)
         int i;
         unsigned long flags;
 
+        /*
+         * A weight of 0 or 1 can cause arithmetics problems.
+         * (The default weight is 1024 - so there's no practical
+         *  limitation from this.)
+         */
+        if (shares < 2)
+                shares = 2;
+
         mutex_lock(&shares_mutex);
         if (tg->shares == shares)
                 goto done;
 
-        if (shares < MIN_GROUP_SHARES)
-                shares = MIN_GROUP_SHARES;
-
-        /*
-         * Prevent any load balance activity (rebalance_shares,
-         * load_balance_fair) from referring to this group first,
-         * by taking it off the rq->leaf_cfs_rq_list on each cpu.
-         */
         spin_lock_irqsave(&task_group_lock, flags);
         for_each_possible_cpu(i)
                 unregister_fair_sched_group(tg, i);
@@ -7892,11 +7688,8 @@ int sched_group_set_shares(struct task_group *tg, unsigned long shares)
          * w/o tripping rebalance_share or load_balance_fair.
          */
         tg->shares = shares;
-        for_each_possible_cpu(i) {
-                spin_lock_irq(&cpu_rq(i)->lock);
+        for_each_possible_cpu(i)
                 set_se_shares(tg->se[i], shares);
-                spin_unlock_irq(&cpu_rq(i)->lock);
-        }
 
         /*
          * Enable load balance activity on this group, by inserting it back on
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 6c091d6e159d..3df4d46994ca 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -202,17 +202,12 @@ static struct sched_entity *__pick_next_entity(struct cfs_rq *cfs_rq)
 
 static inline struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq)
 {
-        struct rb_node **link = &cfs_rq->tasks_timeline.rb_node;
-        struct sched_entity *se = NULL;
-        struct rb_node *parent;
+        struct rb_node *last = rb_last(&cfs_rq->tasks_timeline);
 
-        while (*link) {
-                parent = *link;
-                se = rb_entry(parent, struct sched_entity, run_node);
-                link = &parent->rb_right;
-        }
+        if (!last)
+                return NULL;
 
-        return se;
+        return rb_entry(last, struct sched_entity, run_node);
 }
 
 /**************************************************************
@@ -732,8 +727,6 @@ static inline struct sched_entity *parent_entity(struct sched_entity *se)
         return se->parent;
 }
 
-#define GROUP_IMBALANCE_PCT     20
-
 #else   /* CONFIG_FAIR_GROUP_SCHED */
 
 #define for_each_sched_entity(se) \
@@ -824,26 +817,15 @@ hrtick_start_fair(struct rq *rq, struct task_struct *p)
 static void enqueue_task_fair(struct rq *rq, struct task_struct *p, int wakeup)
 {
         struct cfs_rq *cfs_rq;
-        struct sched_entity *se = &p->se,
-                            *topse = NULL;      /* Highest schedulable entity */
-        int incload = 1;
+        struct sched_entity *se = &p->se;
 
         for_each_sched_entity(se) {
-                topse = se;
-                if (se->on_rq) {
-                        incload = 0;
+                if (se->on_rq)
                         break;
-                }
                 cfs_rq = cfs_rq_of(se);
                 enqueue_entity(cfs_rq, se, wakeup);
                 wakeup = 1;
         }
-        /* Increment cpu load if we just enqueued the first task of a group on
-         * 'rq->cpu'. 'topse' represents the group to which task 'p' belongs
-         * at the highest grouping level.
-         */
-        if (incload)
-                inc_cpu_load(rq, topse->load.weight);
 
         hrtick_start_fair(rq, rq->curr);
 }
@@ -856,28 +838,16 @@ static void enqueue_task_fair(struct rq *rq, struct task_struct *p, int wakeup)
 static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int sleep)
 {
         struct cfs_rq *cfs_rq;
-        struct sched_entity *se = &p->se,
-                            *topse = NULL;      /* Highest schedulable entity */
-        int decload = 1;
+        struct sched_entity *se = &p->se;
 
         for_each_sched_entity(se) {
-                topse = se;
                 cfs_rq = cfs_rq_of(se);
                 dequeue_entity(cfs_rq, se, sleep);
                 /* Don't dequeue parent if it has other entities besides us */
-                if (cfs_rq->load.weight) {
-                        if (parent_entity(se))
-                                decload = 0;
+                if (cfs_rq->load.weight)
                         break;
-                }
                 sleep = 1;
         }
-        /* Decrement cpu load if we just dequeued the last task of a group on
-         * 'rq->cpu'. 'topse' represents the group to which task 'p' belongs
-         * at the highest grouping level.
-         */
-        if (decload)
-                dec_cpu_load(rq, topse->load.weight);
 
         hrtick_start_fair(rq, rq->curr);
 }
@@ -1191,6 +1161,25 @@ static struct task_struct *load_balance_next_fair(void *arg)
         return __load_balance_iterator(cfs_rq, cfs_rq->rb_load_balance_curr);
 }
 
+#ifdef CONFIG_FAIR_GROUP_SCHED
+static int cfs_rq_best_prio(struct cfs_rq *cfs_rq)
+{
+        struct sched_entity *curr;
+        struct task_struct *p;
+
+        if (!cfs_rq->nr_running || !first_fair(cfs_rq))
+                return MAX_PRIO;
+
+        curr = cfs_rq->curr;
+        if (!curr)
+                curr = __pick_next_entity(cfs_rq);
+
+        p = task_of(curr);
+
+        return p->prio;
+}
+#endif
+
 static unsigned long
 load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest,
                   unsigned long max_load_move,
@@ -1200,45 +1189,28 @@ load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest,
         struct cfs_rq *busy_cfs_rq;
         long rem_load_move = max_load_move;
         struct rq_iterator cfs_rq_iterator;
-        unsigned long load_moved;
 
         cfs_rq_iterator.start = load_balance_start_fair;
         cfs_rq_iterator.next = load_balance_next_fair;
 
         for_each_leaf_cfs_rq(busiest, busy_cfs_rq) {
 #ifdef CONFIG_FAIR_GROUP_SCHED
-                struct cfs_rq *this_cfs_rq = busy_cfs_rq->tg->cfs_rq[this_cpu];
-                unsigned long maxload, task_load, group_weight;
-                unsigned long thisload, per_task_load;
-                struct sched_entity *se = busy_cfs_rq->tg->se[busiest->cpu];
-
-                task_load = busy_cfs_rq->load.weight;
-                group_weight = se->load.weight;
+                struct cfs_rq *this_cfs_rq;
+                long imbalance;
+                unsigned long maxload;
 
-                /*
-                 * 'group_weight' is contributed by tasks of total weight
-                 * 'task_load'. To move 'rem_load_move' worth of weight only,
-                 * we need to move a maximum task load of:
-                 *
-                 *      maxload = (remload / group_weight) * task_load;
-                 */
-                maxload = (rem_load_move * task_load) / group_weight;
+                this_cfs_rq = cpu_cfs_rq(busy_cfs_rq, this_cpu);
 
-                if (!maxload || !task_load)
+                imbalance = busy_cfs_rq->load.weight - this_cfs_rq->load.weight;
+                /* Don't pull if this_cfs_rq has more load than busy_cfs_rq */
+                if (imbalance <= 0)
                         continue;
 
-                per_task_load = task_load / busy_cfs_rq->nr_running;
-                /*
-                 * balance_tasks will try to forcibly move atleast one task if
-                 * possible (because of SCHED_LOAD_SCALE_FUZZ). Avoid that if
-                 * maxload is less than GROUP_IMBALANCE_FUZZ% the per_task_load.
-                 */
-                 if (100 * maxload < GROUP_IMBALANCE_PCT * per_task_load)
-                        continue;
+                /* Don't pull more than imbalance/2 */
+                imbalance /= 2;
+                maxload = min(rem_load_move, imbalance);
 
-                /* Disable priority-based load balance */
-                *this_best_prio = 0;
-                thisload = this_cfs_rq->load.weight;
+                *this_best_prio = cfs_rq_best_prio(this_cfs_rq);
 #else
 # define maxload rem_load_move
 #endif
@@ -1247,33 +1219,11 @@ load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest,
                  * load_balance_[start|next]_fair iterators
                  */
                 cfs_rq_iterator.arg = busy_cfs_rq;
-                load_moved = balance_tasks(this_rq, this_cpu, busiest,
+                rem_load_move -= balance_tasks(this_rq, this_cpu, busiest,
                                                maxload, sd, idle, all_pinned,
                                                this_best_prio,
                                                &cfs_rq_iterator);
 
-#ifdef CONFIG_FAIR_GROUP_SCHED
-                /*
-                 * load_moved holds the task load that was moved. The
-                 * effective (group) weight moved would be:
-                 *      load_moved_eff = load_moved/task_load * group_weight;
-                 */
-                load_moved = (group_weight * load_moved) / task_load;
-
-                /* Adjust shares on both cpus to reflect load_moved */
-                group_weight -= load_moved;
-                set_se_shares(se, group_weight);
-
-                se = busy_cfs_rq->tg->se[this_cpu];
-                if (!thisload)
-                        group_weight = load_moved;
-                else
-                        group_weight = se->load.weight + load_moved;
-                set_se_shares(se, group_weight);
-#endif
-
-                rem_load_move -= load_moved;
-
                 if (rem_load_move <= 0)
                         break;
         }
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index f54792b175b2..76e828517541 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -393,8 +393,6 @@ static void enqueue_task_rt(struct rq *rq, struct task_struct *p, int wakeup)
          */
         for_each_sched_rt_entity(rt_se)
                 enqueue_rt_entity(rt_se);
-
-        inc_cpu_load(rq, p->se.load.weight);
 }
 
 static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep)
@@ -414,8 +412,6 @@ static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep)
                 if (rt_rq && rt_rq->rt_nr_running)
                         enqueue_rt_entity(rt_se);
         }
-
-        dec_cpu_load(rq, p->se.load.weight);
 }
 
 /*
diff --git a/kernel/signal.c b/kernel/signal.c
index 84917fe507f7..6af1210092c3 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1623,7 +1623,6 @@ static void ptrace_stop(int exit_code, int clear_code, siginfo_t *info)
         /* Let the debugger run.  */
         __set_current_state(TASK_TRACED);
         spin_unlock_irq(&current->sighand->siglock);
-        try_to_freeze();
         read_lock(&tasklist_lock);
         if (!unlikely(killed) && may_ptrace_stop()) {
                 do_notify_parent_cldstop(current, CLD_TRAPPED);
@@ -1641,6 +1640,13 @@ static void ptrace_stop(int exit_code, int clear_code, siginfo_t *info)
         }
 
         /*
+         * While in TASK_TRACED, we were considered "frozen enough".
+         * Now that we woke up, it's crucial if we're supposed to be
+         * frozen that we freeze now before running anything substantial.
+         */
+        try_to_freeze();
+
+        /*
          * We are back.  Now reacquire the siglock before touching
          * last_siginfo, so that we are sure to have synchronized with
          * any signal-sending on another CPU that wants to examine it.
@@ -1757,9 +1763,15 @@ int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka,
         sigset_t *mask = &current->blocked;
         int signr = 0;
 
+relock:
+        /*
+         * We'll jump back here after any time we were stopped in TASK_STOPPED.
+         * While in TASK_STOPPED, we were considered "frozen enough".
+         * Now that we woke up, it's crucial if we're supposed to be
+         * frozen that we freeze now before running anything substantial.
+         */
         try_to_freeze();
 
-relock:
         spin_lock_irq(&current->sighand->siglock);
         for (;;) {
                 struct k_sigaction *ka;
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 5b3aea5f471e..31e9f2a47928 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -313,6 +313,7 @@ void irq_exit(void)
         /* Make sure that timer wheel updates are propagated */
         if (!in_interrupt() && idle_cpu(smp_processor_id()) && !need_resched())
                 tick_nohz_stop_sched_tick();
+        rcu_irq_exit();
 #endif
         preempt_enable_no_resched();
 }
diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index 7c2da88db4ed..01b6522fd92b 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -216,26 +216,27 @@ static int watchdog(void *__bind_cpu)
         /* initialize timestamp */
         touch_softlockup_watchdog();
 
+        set_current_state(TASK_INTERRUPTIBLE);
         /*
          * Run briefly once per second to reset the softlockup timestamp.
          * If this gets delayed for more than 60 seconds then the
          * debug-printout triggers in softlockup_tick().
          */
         while (!kthread_should_stop()) {
-                set_current_state(TASK_INTERRUPTIBLE);
                 touch_softlockup_watchdog();
                 schedule();
 
                 if (kthread_should_stop())
                         break;
 
-                if (this_cpu != check_cpu)
-                        continue;
-
-                if (sysctl_hung_task_timeout_secs)
-                        check_hung_uninterruptible_tasks(this_cpu);
+                if (this_cpu == check_cpu) {
+                        if (sysctl_hung_task_timeout_secs)
+                                check_hung_uninterruptible_tasks(this_cpu);
+                }
 
+                set_current_state(TASK_INTERRUPTIBLE);
         }
+        __set_current_state(TASK_RUNNING);
 
         return 0;
 }
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 8b7e95411795..b2a2d6889bab 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -311,24 +311,6 @@ static struct ctl_table kern_table[] = {
                 .mode           = 0644,
                 .proc_handler   = &proc_dointvec,
         },
-#if defined(CONFIG_FAIR_GROUP_SCHED) && defined(CONFIG_SMP)
-        {
-                .ctl_name       = CTL_UNNUMBERED,
-                .procname       = "sched_min_bal_int_shares",
-                .data           = &sysctl_sched_min_bal_int_shares,
-                .maxlen         = sizeof(unsigned int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
-        },
-        {
-                .ctl_name       = CTL_UNNUMBERED,
-                .procname       = "sched_max_bal_int_shares",
-                .data           = &sysctl_sched_max_bal_int_shares,
-                .maxlen         = sizeof(unsigned int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
-        },
-#endif
 #endif
         {
                 .ctl_name       = CTL_UNNUMBERED,
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index fa9bb73dbdb4..2968298f8f36 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -282,6 +282,7 @@ void tick_nohz_stop_sched_tick(void)
                         ts->idle_tick = ts->sched_timer.expires;
                         ts->tick_stopped = 1;
                         ts->idle_jiffies = last_jiffies;
+                        rcu_enter_nohz();
                 }
 
                 /*
@@ -375,6 +376,8 @@ void tick_nohz_restart_sched_tick(void)
                 return;
         }
 
+        rcu_exit_nohz();
+
         /* Update jiffies first */
         select_nohz_load_balancer(0);
         now = ktime_get();
diff --git a/lib/iommu-helper.c b/lib/iommu-helper.c
index 495575a59ca6..a3b8d4c3f77a 100644
--- a/lib/iommu-helper.c
+++ b/lib/iommu-helper.c
@@ -40,10 +40,12 @@ static inline void set_bit_area(unsigned long *map, unsigned long i,
         }
 }
 
-static inline int is_span_boundary(unsigned int index, unsigned int nr,
-                                   unsigned long shift,
-                                   unsigned long boundary_size)
+int iommu_is_span_boundary(unsigned int index, unsigned int nr,
+                           unsigned long shift,
+                           unsigned long boundary_size)
 {
+        BUG_ON(!is_power_of_2(boundary_size));
+
         shift = (shift + index) & (boundary_size - 1);
         return shift + nr > boundary_size;
 }
@@ -57,7 +59,7 @@ unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
 again:
         index = find_next_zero_area(map, size, start, nr, align_mask);
         if (index != -1) {
-                if (is_span_boundary(index, nr, shift, boundary_size)) {
+                if (iommu_is_span_boundary(index, nr, shift, boundary_size)) {
                         /* we could do more effectively */
                         start = index + 1;
                         goto again;
diff --git a/lib/kobject.c b/lib/kobject.c
index d784daeb8571..0d03252f87a8 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -153,6 +153,10 @@ static void kobject_init_internal(struct kobject *kobj)
                 return;
         kref_init(&kobj->kref);
         INIT_LIST_HEAD(&kobj->entry);
+        kobj->state_in_sysfs = 0;
+        kobj->state_add_uevent_sent = 0;
+        kobj->state_remove_uevent_sent = 0;
+        kobj->state_initialized = 1;
 }
 
 
@@ -289,13 +293,8 @@ void kobject_init(struct kobject *kobj, struct kobj_type *ktype)
                 dump_stack();
         }
 
-        kref_init(&kobj->kref);
-        INIT_LIST_HEAD(&kobj->entry);
+        kobject_init_internal(kobj);
         kobj->ktype = ktype;
-        kobj->state_in_sysfs = 0;
-        kobj->state_add_uevent_sent = 0;
-        kobj->state_remove_uevent_sent = 0;
-        kobj->state_initialized = 1;
         return;
 
 error:
diff --git a/mm/Makefile b/mm/Makefile
index 9f117bab5322..a5b0dd93427a 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -32,5 +32,5 @@ obj-$(CONFIG_FS_XIP) += filemap_xip.o
 obj-$(CONFIG_MIGRATION) += migrate.o
 obj-$(CONFIG_SMP) += allocpercpu.o
 obj-$(CONFIG_QUICKLIST) += quicklist.o
-obj-$(CONFIG_CGROUP_MEM_CONT) += memcontrol.o
+obj-$(CONFIG_CGROUP_MEM_RES_CTLR) += memcontrol.o
 
diff --git a/mm/allocpercpu.c b/mm/allocpercpu.c
index 7e58322b7134..b0012e27fea8 100644
--- a/mm/allocpercpu.c
+++ b/mm/allocpercpu.c
@@ -6,6 +6,10 @@
 #include <linux/mm.h>
 #include <linux/module.h>
 
+#ifndef cache_line_size
+#define cache_line_size()       L1_CACHE_BYTES
+#endif
+
 /**
  * percpu_depopulate - depopulate per-cpu data for given cpu
  * @__pdata: per-cpu data to depopulate
@@ -52,6 +56,11 @@ void *percpu_populate(void *__pdata, size_t size, gfp_t gfp, int cpu)
         struct percpu_data *pdata = __percpu_disguise(__pdata);
         int node = cpu_to_node(cpu);
 
+        /*
+         * We should make sure each CPU gets private memory.
+         */
+        size = roundup(size, cache_line_size());
+
         BUG_ON(pdata->ptrs[cpu]);
         if (node_online(node))
                 pdata->ptrs[cpu] = kmalloc_node(size, gfp|__GFP_ZERO, node);
@@ -98,7 +107,11 @@ EXPORT_SYMBOL_GPL(__percpu_populate_mask);
  */
 void *__percpu_alloc_mask(size_t size, gfp_t gfp, cpumask_t *mask)
 {
-        void *pdata = kzalloc(nr_cpu_ids * sizeof(void *), gfp);
+        /*
+         * We allocate whole cache lines to avoid false sharing
+         */
+        size_t sz = roundup(nr_cpu_ids * sizeof(void *), cache_line_size());
+        void *pdata = kzalloc(sz, gfp);
         void *__pdata = __percpu_disguise(pdata);
 
         if (unlikely(!pdata))
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 89e6286a7f57..dcacc811e70e 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -71,7 +71,25 @@ static void enqueue_huge_page(struct page *page)
         free_huge_pages_node[nid]++;
 }
 
-static struct page *dequeue_huge_page(struct vm_area_struct *vma,
+static struct page *dequeue_huge_page(void)
+{
+        int nid;
+        struct page *page = NULL;
+
+        for (nid = 0; nid < MAX_NUMNODES; ++nid) {
+                if (!list_empty(&hugepage_freelists[nid])) {
+                        page = list_entry(hugepage_freelists[nid].next,
+                                          struct page, lru);
+                        list_del(&page->lru);
+                        free_huge_pages--;
+                        free_huge_pages_node[nid]--;
+                        break;
+                }
+        }
+        return page;
+}
+
+static struct page *dequeue_huge_page_vma(struct vm_area_struct *vma,
                                 unsigned long address)
 {
         int nid;
@@ -296,8 +314,10 @@ static int gather_surplus_pages(int delta)
         int needed, allocated;
 
         needed = (resv_huge_pages + delta) - free_huge_pages;
-        if (needed <= 0)
+        if (needed <= 0) {
+                resv_huge_pages += delta;
                 return 0;
+        }
 
         allocated = 0;
         INIT_LIST_HEAD(&surplus_list);
@@ -335,9 +355,12 @@ retry:
          * The surplus_list now contains _at_least_ the number of extra pages
          * needed to accomodate the reservation.  Add the appropriate number
          * of pages to the hugetlb pool and free the extras back to the buddy
-         * allocator.
+         * allocator.  Commit the entire reservation here to prevent another
+         * process from stealing the pages as they are added to the pool but
+         * before they are reserved.
          */
         needed += allocated;
+        resv_huge_pages += delta;
         ret = 0;
 free:
         list_for_each_entry_safe(page, tmp, &surplus_list, lru) {
@@ -371,6 +394,9 @@ static void return_unused_surplus_pages(unsigned long unused_resv_pages)
         struct page *page;
         unsigned long nr_pages;
 
+        /* Uncommit the reservation */
+        resv_huge_pages -= unused_resv_pages;
+
         nr_pages = min(unused_resv_pages, surplus_huge_pages);
 
         while (nr_pages) {
@@ -402,7 +428,7 @@ static struct page *alloc_huge_page_shared(struct vm_area_struct *vma,
         struct page *page;
 
         spin_lock(&hugetlb_lock);
-        page = dequeue_huge_page(vma, addr);
+        page = dequeue_huge_page_vma(vma, addr);
         spin_unlock(&hugetlb_lock);
         return page ? page : ERR_PTR(-VM_FAULT_OOM);
 }
@@ -417,7 +443,7 @@ static struct page *alloc_huge_page_private(struct vm_area_struct *vma,
 
         spin_lock(&hugetlb_lock);
         if (free_huge_pages > resv_huge_pages)
-                page = dequeue_huge_page(vma, addr);
+                page = dequeue_huge_page_vma(vma, addr);
         spin_unlock(&hugetlb_lock);
         if (!page) {
                 page = alloc_buddy_huge_page(vma, addr);
@@ -570,7 +596,7 @@ static unsigned long set_max_huge_pages(unsigned long count)
         min_count = max(count, min_count);
         try_to_free_low(min_count);
         while (min_count < persistent_huge_pages) {
-                struct page *page = dequeue_huge_page(NULL, 0);
+                struct page *page = dequeue_huge_page();
                 if (!page)
                         break;
                 update_and_free_page(page);
@@ -1205,12 +1231,13 @@ static int hugetlb_acct_memory(long delta)
                 if (gather_surplus_pages(delta) < 0)
                         goto out;
 
-                if (delta > cpuset_mems_nr(free_huge_pages_node))
+                if (delta > cpuset_mems_nr(free_huge_pages_node)) {
+                        return_unused_surplus_pages(delta);
                         goto out;
+                }
         }
 
         ret = 0;
-        resv_huge_pages += delta;
         if (delta < 0)
                 return_unused_surplus_pages((unsigned long) -delta);
 
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 631002d085d1..8b9f6cae938e 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -137,14 +137,21 @@ struct mem_cgroup {
          */
         struct mem_cgroup_stat stat;
 };
+static struct mem_cgroup init_mem_cgroup;
 
 /*
  * We use the lower bit of the page->page_cgroup pointer as a bit spin
- * lock. We need to ensure that page->page_cgroup is atleast two
- * byte aligned (based on comments from Nick Piggin)
+ * lock.  We need to ensure that page->page_cgroup is at least two
+ * byte aligned (based on comments from Nick Piggin).  But since
+ * bit_spin_lock doesn't actually set that lock bit in a non-debug
+ * uniprocessor kernel, we should avoid setting it here too.
  */
 #define PAGE_CGROUP_LOCK_BIT    0x0
-#define PAGE_CGROUP_LOCK                (1 << PAGE_CGROUP_LOCK_BIT)
+#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
+#define PAGE_CGROUP_LOCK        (1 << PAGE_CGROUP_LOCK_BIT)
+#else
+#define PAGE_CGROUP_LOCK        0x0
+#endif
 
 /*
  * A page_cgroup page is associated with every page descriptor. The
@@ -154,37 +161,27 @@ struct page_cgroup {
         struct list_head lru;           /* per cgroup LRU list */
         struct page *page;
         struct mem_cgroup *mem_cgroup;
-        atomic_t ref_cnt;               /* Helpful when pages move b/w  */
-                                        /* mapped and cached states     */
-        int      flags;
+        int ref_cnt;                    /* cached, mapped, migrating */
+        int flags;
 };
 #define PAGE_CGROUP_FLAG_CACHE  (0x1)   /* charged as cache */
 #define PAGE_CGROUP_FLAG_ACTIVE (0x2)   /* page is active in this cgroup */
 
-static inline int page_cgroup_nid(struct page_cgroup *pc)
+static int page_cgroup_nid(struct page_cgroup *pc)
 {
         return page_to_nid(pc->page);
 }
 
-static inline enum zone_type page_cgroup_zid(struct page_cgroup *pc)
+static enum zone_type page_cgroup_zid(struct page_cgroup *pc)
 {
         return page_zonenum(pc->page);
 }
 
-enum {
-        MEM_CGROUP_TYPE_UNSPEC = 0,
-        MEM_CGROUP_TYPE_MAPPED,
-        MEM_CGROUP_TYPE_CACHED,
-        MEM_CGROUP_TYPE_ALL,
-        MEM_CGROUP_TYPE_MAX,
-};
-
 enum charge_type {
         MEM_CGROUP_CHARGE_TYPE_CACHE = 0,
         MEM_CGROUP_CHARGE_TYPE_MAPPED,
 };
 
-
 /*
  * Always modified under lru lock. Then, not necessary to preempt_disable()
  */
@@ -193,23 +190,21 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *mem, int flags,
 {
         int val = (charge)? 1 : -1;
         struct mem_cgroup_stat *stat = &mem->stat;
-        VM_BUG_ON(!irqs_disabled());
 
+        VM_BUG_ON(!irqs_disabled());
         if (flags & PAGE_CGROUP_FLAG_CACHE)
-                __mem_cgroup_stat_add_safe(stat,
-                                        MEM_CGROUP_STAT_CACHE, val);
+                __mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_CACHE, val);
         else
                 __mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_RSS, val);
 }
 
-static inline struct mem_cgroup_per_zone *
+static struct mem_cgroup_per_zone *
 mem_cgroup_zoneinfo(struct mem_cgroup *mem, int nid, int zid)
 {
-        BUG_ON(!mem->info.nodeinfo[nid]);
         return &mem->info.nodeinfo[nid]->zoneinfo[zid];
 }
 
-static inline struct mem_cgroup_per_zone *
+static struct mem_cgroup_per_zone *
 page_cgroup_zoneinfo(struct page_cgroup *pc)
 {
         struct mem_cgroup *mem = pc->mem_cgroup;
@@ -234,18 +229,14 @@ static unsigned long mem_cgroup_get_all_zonestat(struct mem_cgroup *mem,
         return total;
 }
 
-static struct mem_cgroup init_mem_cgroup;
-
-static inline
-struct mem_cgroup *mem_cgroup_from_cont(struct cgroup *cont)
+static struct mem_cgroup *mem_cgroup_from_cont(struct cgroup *cont)
 {
         return container_of(cgroup_subsys_state(cont,
                                 mem_cgroup_subsys_id), struct mem_cgroup,
                                 css);
 }
 
-static inline
-struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p)
+static struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p)
 {
         return container_of(task_subsys_state(p, mem_cgroup_subsys_id),
                                 struct mem_cgroup, css);
@@ -267,81 +258,33 @@ void mm_free_cgroup(struct mm_struct *mm)
 
 static inline int page_cgroup_locked(struct page *page)
 {
-        return bit_spin_is_locked(PAGE_CGROUP_LOCK_BIT,
-                                        &page->page_cgroup);
+        return bit_spin_is_locked(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup);
 }
 
-void page_assign_page_cgroup(struct page *page, struct page_cgroup *pc)
+static void page_assign_page_cgroup(struct page *page, struct page_cgroup *pc)
 {
-        int locked;
-
-        /*
-         * While resetting the page_cgroup we might not hold the
-         * page_cgroup lock. free_hot_cold_page() is an example
-         * of such a scenario
-         */
-        if (pc)
-                VM_BUG_ON(!page_cgroup_locked(page));
-        locked = (page->page_cgroup & PAGE_CGROUP_LOCK);
-        page->page_cgroup = ((unsigned long)pc | locked);
+        VM_BUG_ON(!page_cgroup_locked(page));
+        page->page_cgroup = ((unsigned long)pc | PAGE_CGROUP_LOCK);
 }
 
 struct page_cgroup *page_get_page_cgroup(struct page *page)
 {
-        return (struct page_cgroup *)
-                (page->page_cgroup & ~PAGE_CGROUP_LOCK);
+        return (struct page_cgroup *) (page->page_cgroup & ~PAGE_CGROUP_LOCK);
 }
 
-static void __always_inline lock_page_cgroup(struct page *page)
+static void lock_page_cgroup(struct page *page)
 {
         bit_spin_lock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup);
-        VM_BUG_ON(!page_cgroup_locked(page));
-}
-
-static void __always_inline unlock_page_cgroup(struct page *page)
-{
-        bit_spin_unlock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup);
 }
 
-/*
- * Tie new page_cgroup to struct page under lock_page_cgroup()
- * This can fail if the page has been tied to a page_cgroup.
- * If success, returns 0.
- */
-static int page_cgroup_assign_new_page_cgroup(struct page *page,
-                                                struct page_cgroup *pc)
+static int try_lock_page_cgroup(struct page *page)
 {
-        int ret = 0;
-
-        lock_page_cgroup(page);
-        if (!page_get_page_cgroup(page))
-                page_assign_page_cgroup(page, pc);
-        else /* A page is tied to other pc. */
-                ret = 1;
-        unlock_page_cgroup(page);
-        return ret;
+        return bit_spin_trylock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup);
 }
 
-/*
- * Clear page->page_cgroup member under lock_page_cgroup().
- * If given "pc" value is different from one page->page_cgroup,
- * page->cgroup is not cleared.
- * Returns a value of page->page_cgroup at lock taken.
- * A can can detect failure of clearing by following
- *  clear_page_cgroup(page, pc) == pc
- */
-
-static struct page_cgroup *clear_page_cgroup(struct page *page,
-                                                struct page_cgroup *pc)
+static void unlock_page_cgroup(struct page *page)
 {
-        struct page_cgroup *ret;
-        /* lock and clear */
-        lock_page_cgroup(page);
-        ret = page_get_page_cgroup(page);
-        if (likely(ret == pc))
-                page_assign_page_cgroup(page, NULL);
-        unlock_page_cgroup(page);
-        return ret;
+        bit_spin_unlock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup);
 }
 
 static void __mem_cgroup_remove_list(struct page_cgroup *pc)
@@ -399,7 +342,7 @@ int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem)
         int ret;
 
         task_lock(task);
-        ret = task->mm && vm_match_cgroup(task->mm, mem);
+        ret = task->mm && mm_match_cgroup(task->mm, mem);
         task_unlock(task);
         return ret;
 }
@@ -407,18 +350,30 @@ int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem)
 /*
  * This routine assumes that the appropriate zone's lru lock is already held
  */
-void mem_cgroup_move_lists(struct page_cgroup *pc, bool active)
+void mem_cgroup_move_lists(struct page *page, bool active)
 {
+        struct page_cgroup *pc;
         struct mem_cgroup_per_zone *mz;
         unsigned long flags;
 
-        if (!pc)
+        /*
+         * We cannot lock_page_cgroup while holding zone's lru_lock,
+         * because other holders of lock_page_cgroup can be interrupted
+         * with an attempt to rotate_reclaimable_page.  But we cannot
+         * safely get to page_cgroup without it, so just try_lock it:
+         * mem_cgroup_isolate_pages allows for page left on wrong list.
+         */
+        if (!try_lock_page_cgroup(page))
                 return;
 
-        mz = page_cgroup_zoneinfo(pc);
-        spin_lock_irqsave(&mz->lru_lock, flags);
-        __mem_cgroup_move_lists(pc, active);
-        spin_unlock_irqrestore(&mz->lru_lock, flags);
+        pc = page_get_page_cgroup(page);
+        if (pc) {
+                mz = page_cgroup_zoneinfo(pc);
+                spin_lock_irqsave(&mz->lru_lock, flags);
+                __mem_cgroup_move_lists(pc, active);
+                spin_unlock_irqrestore(&mz->lru_lock, flags);
+        }
+        unlock_page_cgroup(page);
 }
 
 /*
@@ -437,6 +392,7 @@ int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem)
         rss = (long)mem_cgroup_read_stat(&mem->stat, MEM_CGROUP_STAT_RSS);
         return (int)((rss * 100L) / total);
 }
+
 /*
  * This function is called from vmscan.c. In page reclaiming loop. balance
  * between active and inactive list is calculated. For memory controller
@@ -500,7 +456,6 @@ long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
         struct mem_cgroup_per_zone *mz = mem_cgroup_zoneinfo(mem, nid, zid);
 
         nr_inactive = MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_INACTIVE);
-
         return (nr_inactive >> priority);
 }
 
@@ -586,26 +541,21 @@ static int mem_cgroup_charge_common(struct page *page, struct mm_struct *mm,
          * with it
          */
 retry:
-        if (page) {
-                lock_page_cgroup(page);
-                pc = page_get_page_cgroup(page);
-                /*
-                 * The page_cgroup exists and
-                 * the page has already been accounted.
-                 */
-                if (pc) {
-                        if (unlikely(!atomic_inc_not_zero(&pc->ref_cnt))) {
-                                /* this page is under being uncharged ? */
-                                unlock_page_cgroup(page);
-                                cpu_relax();
-                                goto retry;
-                        } else {
-                                unlock_page_cgroup(page);
-                                goto done;
-                        }
-                }
+        lock_page_cgroup(page);
+        pc = page_get_page_cgroup(page);
+        /*
+         * The page_cgroup exists and
+         * the page has already been accounted.
+         */
+        if (pc) {
+                VM_BUG_ON(pc->page != page);
+                VM_BUG_ON(pc->ref_cnt <= 0);
+
+                pc->ref_cnt++;
                 unlock_page_cgroup(page);
+                goto done;
         }
+        unlock_page_cgroup(page);
 
         pc = kzalloc(sizeof(struct page_cgroup), gfp_mask);
         if (pc == NULL)
@@ -623,16 +573,11 @@ retry:
         rcu_read_lock();
         mem = rcu_dereference(mm->mem_cgroup);
         /*
-         * For every charge from the cgroup, increment reference
-         * count
+         * For every charge from the cgroup, increment reference count
          */
         css_get(&mem->css);
         rcu_read_unlock();
 
-        /*
-         * If we created the page_cgroup, we should free it on exceeding
-         * the cgroup limit.
-         */
         while (res_counter_charge(&mem->res, PAGE_SIZE)) {
                 if (!(gfp_mask & __GFP_WAIT))
                         goto out;
@@ -641,12 +586,12 @@ retry:
                         continue;
 
                 /*
-                 * try_to_free_mem_cgroup_pages() might not give us a full
-                 * picture of reclaim. Some pages are reclaimed and might be
-                 * moved to swap cache or just unmapped from the cgroup.
-                 * Check the limit again to see if the reclaim reduced the
-                 * current usage of the cgroup before giving up
-                 */
+                 * try_to_free_mem_cgroup_pages() might not give us a full
+                 * picture of reclaim. Some pages are reclaimed and might be
+                 * moved to swap cache or just unmapped from the cgroup.
+                 * Check the limit again to see if the reclaim reduced the
+                 * current usage of the cgroup before giving up
+                 */
                 if (res_counter_check_under_limit(&mem->res))
                         continue;
 
@@ -657,14 +602,16 @@ retry:
                 congestion_wait(WRITE, HZ/10);
         }
 
-        atomic_set(&pc->ref_cnt, 1);
+        pc->ref_cnt = 1;
         pc->mem_cgroup = mem;
         pc->page = page;
         pc->flags = PAGE_CGROUP_FLAG_ACTIVE;
         if (ctype == MEM_CGROUP_CHARGE_TYPE_CACHE)
                 pc->flags |= PAGE_CGROUP_FLAG_CACHE;
 
-        if (!page || page_cgroup_assign_new_page_cgroup(page, pc)) {
+        lock_page_cgroup(page);
+        if (page_get_page_cgroup(page)) {
+                unlock_page_cgroup(page);
                 /*
                  * Another charge has been added to this page already.
                  * We take lock_page_cgroup(page) again and read
@@ -673,17 +620,16 @@ retry:
                 res_counter_uncharge(&mem->res, PAGE_SIZE);
                 css_put(&mem->css);
                 kfree(pc);
-                if (!page)
-                        goto done;
                 goto retry;
         }
+        page_assign_page_cgroup(page, pc);
 
         mz = page_cgroup_zoneinfo(pc);
         spin_lock_irqsave(&mz->lru_lock, flags);
-        /* Update statistics vector */
         __mem_cgroup_add_list(pc);
         spin_unlock_irqrestore(&mz->lru_lock, flags);
 
+        unlock_page_cgroup(page);
 done:
         return 0;
 out:
@@ -693,70 +639,61 @@ err:
         return -ENOMEM;
 }
 
-int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
-                        gfp_t gfp_mask)
+int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask)
 {
         return mem_cgroup_charge_common(page, mm, gfp_mask,
-                        MEM_CGROUP_CHARGE_TYPE_MAPPED);
+                                MEM_CGROUP_CHARGE_TYPE_MAPPED);
 }
 
-/*
- * See if the cached pages should be charged at all?
- */
 int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm,
                                 gfp_t gfp_mask)
 {
-        int ret = 0;
         if (!mm)
                 mm = &init_mm;
-
-        ret = mem_cgroup_charge_common(page, mm, gfp_mask,
+        return mem_cgroup_charge_common(page, mm, gfp_mask,
                                 MEM_CGROUP_CHARGE_TYPE_CACHE);
-        return ret;
 }
 
 /*
  * Uncharging is always a welcome operation, we never complain, simply
- * uncharge. This routine should be called with lock_page_cgroup held
+ * uncharge.
  */
-void mem_cgroup_uncharge(struct page_cgroup *pc)
+void mem_cgroup_uncharge_page(struct page *page)
 {
+        struct page_cgroup *pc;
         struct mem_cgroup *mem;
         struct mem_cgroup_per_zone *mz;
-        struct page *page;
         unsigned long flags;
 
         /*
          * Check if our page_cgroup is valid
          */
+        lock_page_cgroup(page);
+        pc = page_get_page_cgroup(page);
         if (!pc)
-                return;
+                goto unlock;
 
-        if (atomic_dec_and_test(&pc->ref_cnt)) {
-                page = pc->page;
+        VM_BUG_ON(pc->page != page);
+        VM_BUG_ON(pc->ref_cnt <= 0);
+
+        if (--(pc->ref_cnt) == 0) {
                 mz = page_cgroup_zoneinfo(pc);
-                /*
-                 * get page->cgroup and clear it under lock.
-                 * force_empty can drop page->cgroup without checking refcnt.
-                 */
+                spin_lock_irqsave(&mz->lru_lock, flags);
+                __mem_cgroup_remove_list(pc);
+                spin_unlock_irqrestore(&mz->lru_lock, flags);
+
+                page_assign_page_cgroup(page, NULL);
                 unlock_page_cgroup(page);
-                if (clear_page_cgroup(page, pc) == pc) {
-                        mem = pc->mem_cgroup;
-                        css_put(&mem->css);
-                        res_counter_uncharge(&mem->res, PAGE_SIZE);
-                        spin_lock_irqsave(&mz->lru_lock, flags);
-                        __mem_cgroup_remove_list(pc);
-                        spin_unlock_irqrestore(&mz->lru_lock, flags);
-                        kfree(pc);
-                }
-                lock_page_cgroup(page);
+
+                mem = pc->mem_cgroup;
+                res_counter_uncharge(&mem->res, PAGE_SIZE);
+                css_put(&mem->css);
+
+                kfree(pc);
+                return;
         }
-}
 
-void mem_cgroup_uncharge_page(struct page *page)
-{
-        lock_page_cgroup(page);
-        mem_cgroup_uncharge(page_get_page_cgroup(page));
+unlock:
         unlock_page_cgroup(page);
 }
 
@@ -764,63 +701,59 @@ void mem_cgroup_uncharge_page(struct page *page)
  * Returns non-zero if a page (under migration) has valid page_cgroup member.
  * Refcnt of page_cgroup is incremented.
  */
-
 int mem_cgroup_prepare_migration(struct page *page)
 {
         struct page_cgroup *pc;
-        int ret = 0;
+
         lock_page_cgroup(page);
         pc = page_get_page_cgroup(page);
-        if (pc && atomic_inc_not_zero(&pc->ref_cnt))
-                ret = 1;
+        if (pc)
+                pc->ref_cnt++;
         unlock_page_cgroup(page);
-        return ret;
+        return pc != NULL;
 }
 
 void mem_cgroup_end_migration(struct page *page)
 {
-        struct page_cgroup *pc;
-
-        lock_page_cgroup(page);
-        pc = page_get_page_cgroup(page);
-        mem_cgroup_uncharge(pc);
-        unlock_page_cgroup(page);
+        mem_cgroup_uncharge_page(page);
 }
+
 /*
- * We know both *page* and *newpage* are now not-on-LRU and Pg_locked.
+ * We know both *page* and *newpage* are now not-on-LRU and PG_locked.
  * And no race with uncharge() routines because page_cgroup for *page*
  * has extra one reference by mem_cgroup_prepare_migration.
  */
-
 void mem_cgroup_page_migration(struct page *page, struct page *newpage)
 {
         struct page_cgroup *pc;
-        struct mem_cgroup *mem;
-        unsigned long flags;
         struct mem_cgroup_per_zone *mz;
-retry:
+        unsigned long flags;
+
+        lock_page_cgroup(page);
         pc = page_get_page_cgroup(page);
-        if (!pc)
+        if (!pc) {
+                unlock_page_cgroup(page);
                 return;
-        mem = pc->mem_cgroup;
+        }
+
         mz = page_cgroup_zoneinfo(pc);
-        if (clear_page_cgroup(page, pc) != pc)
-                goto retry;
         spin_lock_irqsave(&mz->lru_lock, flags);
-
         __mem_cgroup_remove_list(pc);
         spin_unlock_irqrestore(&mz->lru_lock, flags);
 
+        page_assign_page_cgroup(page, NULL);
+        unlock_page_cgroup(page);
+
         pc->page = newpage;
         lock_page_cgroup(newpage);
         page_assign_page_cgroup(newpage, pc);
-        unlock_page_cgroup(newpage);
 
         mz = page_cgroup_zoneinfo(pc);
         spin_lock_irqsave(&mz->lru_lock, flags);
         __mem_cgroup_add_list(pc);
         spin_unlock_irqrestore(&mz->lru_lock, flags);
-        return;
+
+        unlock_page_cgroup(newpage);
 }
 
 /*
@@ -829,14 +762,13 @@ retry:
  * *And* this routine doesn't reclaim page itself, just removes page_cgroup.
  */
 #define FORCE_UNCHARGE_BATCH    (128)
-static void
-mem_cgroup_force_empty_list(struct mem_cgroup *mem,
+static void mem_cgroup_force_empty_list(struct mem_cgroup *mem,
                             struct mem_cgroup_per_zone *mz,
                             int active)
 {
         struct page_cgroup *pc;
         struct page *page;
-        int count;
+        int count = FORCE_UNCHARGE_BATCH;
         unsigned long flags;
         struct list_head *list;
 
@@ -845,46 +777,36 @@ mem_cgroup_force_empty_list(struct mem_cgroup *mem,
         else
                 list = &mz->inactive_list;
 
-        if (list_empty(list))
-                return;
-retry:
-        count = FORCE_UNCHARGE_BATCH;
         spin_lock_irqsave(&mz->lru_lock, flags);
-
-        while (--count && !list_empty(list)) {
+        while (!list_empty(list)) {
                 pc = list_entry(list->prev, struct page_cgroup, lru);
                 page = pc->page;
-                /* Avoid race with charge */
-                atomic_set(&pc->ref_cnt, 0);
-                if (clear_page_cgroup(page, pc) == pc) {
-                        css_put(&mem->css);
-                        res_counter_uncharge(&mem->res, PAGE_SIZE);
-                        __mem_cgroup_remove_list(pc);
-                        kfree(pc);
-                } else  /* being uncharged ? ...do relax */
-                        break;
+                get_page(page);
+                spin_unlock_irqrestore(&mz->lru_lock, flags);
+                mem_cgroup_uncharge_page(page);
+                put_page(page);
+                if (--count <= 0) {
+                        count = FORCE_UNCHARGE_BATCH;
+                        cond_resched();
+                }
+                spin_lock_irqsave(&mz->lru_lock, flags);
         }
         spin_unlock_irqrestore(&mz->lru_lock, flags);
-        if (!list_empty(list)) {
-                cond_resched();
-                goto retry;
-        }
-        return;
 }
 
 /*
  * make mem_cgroup's charge to be 0 if there is no task.
  * This enables deleting this mem_cgroup.
  */
-
-int mem_cgroup_force_empty(struct mem_cgroup *mem)
+static int mem_cgroup_force_empty(struct mem_cgroup *mem)
 {
         int ret = -EBUSY;
         int node, zid;
+
         css_get(&mem->css);
         /*
          * page reclaim code (kswapd etc..) will move pages between
-`        * active_list <-> inactive_list while we don't take a lock.
+         * active_list <-> inactive_list while we don't take a lock.
          * So, we have to do loop here until all lists are empty.
          */
         while (mem->res.usage > 0) {
@@ -906,9 +828,7 @@ out:
         return ret;
 }
 
-
-
-int mem_cgroup_write_strategy(char *buf, unsigned long long *tmp)
+static int mem_cgroup_write_strategy(char *buf, unsigned long long *tmp)
 {
         *tmp = memparse(buf, &buf);
         if (*buf != '\0')
@@ -945,8 +865,7 @@ static ssize_t mem_force_empty_write(struct cgroup *cont,
                                 size_t nbytes, loff_t *ppos)
 {
         struct mem_cgroup *mem = mem_cgroup_from_cont(cont);
-        int ret;
-        ret = mem_cgroup_force_empty(mem);
+        int ret = mem_cgroup_force_empty(mem);
         if (!ret)
                 ret = nbytes;
         return ret;
@@ -955,7 +874,6 @@ static ssize_t mem_force_empty_write(struct cgroup *cont,
 /*
  * Note: This should be removed if cgroup supports write-only file.
  */
-
 static ssize_t mem_force_empty_read(struct cgroup *cont,
                                 struct cftype *cft,
                                 struct file *file, char __user *userbuf,
@@ -964,7 +882,6 @@ static ssize_t mem_force_empty_read(struct cgroup *cont,
         return -EINVAL;
 }
 
-
 static const struct mem_cgroup_stat_desc {
         const char *msg;
         u64 unit;
@@ -1017,8 +934,6 @@ static int mem_control_stat_open(struct inode *unused, struct file *file)
         return single_open(file, mem_control_stat_show, cont);
 }
 
-
-
 static struct cftype mem_cgroup_files[] = {
         {
                 .name = "usage_in_bytes",
@@ -1084,9 +999,6 @@ static void free_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node)
         kfree(mem->info.nodeinfo[node]);
 }
 
-
-static struct mem_cgroup init_mem_cgroup;
-
 static struct cgroup_subsys_state *
 mem_cgroup_create(struct cgroup_subsys *ss, struct cgroup *cont)
 {
@@ -1176,7 +1088,6 @@ static void mem_cgroup_move_task(struct cgroup_subsys *ss,
 
 out:
         mmput(mm);
-        return;
 }
 
 struct cgroup_subsys mem_cgroup_subsys = {
diff --git a/mm/memory.c b/mm/memory.c
index ce3c9e4492d8..0d14d1e58a5f 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1711,7 +1711,7 @@ unlock:
         }
         return ret;
 oom_free_new:
-        __free_page(new_page);
+        page_cache_release(new_page);
 oom:
         if (old_page)
                 page_cache_release(old_page);
@@ -2093,12 +2093,9 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
         unlock_page(page);
 
         if (write_access) {
-                /* XXX: We could OR the do_wp_page code with this one? */
-                if (do_wp_page(mm, vma, address,
-                                page_table, pmd, ptl, pte) & VM_FAULT_OOM) {
-                        mem_cgroup_uncharge_page(page);
-                        ret = VM_FAULT_OOM;
-                }
+                ret |= do_wp_page(mm, vma, address, page_table, pmd, ptl, pte);
+                if (ret & VM_FAULT_ERROR)
+                        ret &= VM_FAULT_ERROR;
                 goto out;
         }
 
@@ -2163,7 +2160,7 @@ release:
         page_cache_release(page);
         goto unlock;
 oom_free_page:
-        __free_page(page);
+        page_cache_release(page);
 oom:
         return VM_FAULT_OOM;
 }
diff --git a/mm/migrate.c b/mm/migrate.c
index a73504ff5ab9..4e0eccca5e26 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -153,11 +153,6 @@ static void remove_migration_pte(struct vm_area_struct *vma,
                 return;
         }
 
-        if (mem_cgroup_charge(new, mm, GFP_KERNEL)) {
-                pte_unmap(ptep);
-                return;
-        }
-
         ptl = pte_lockptr(mm, pmd);
         spin_lock(ptl);
         pte = *ptep;
@@ -169,6 +164,20 @@ static void remove_migration_pte(struct vm_area_struct *vma,
         if (!is_migration_entry(entry) || migration_entry_to_page(entry) != old)
                 goto out;
 
+        /*
+         * Yes, ignore the return value from a GFP_ATOMIC mem_cgroup_charge.
+         * Failure is not an option here: we're now expected to remove every
+         * migration pte, and will cause crashes otherwise.  Normally this
+         * is not an issue: mem_cgroup_prepare_migration bumped up the old
+         * page_cgroup count for safety, that's now attached to the new page,
+         * so this charge should just be another incrementation of the count,
+         * to keep in balance with rmap.c's mem_cgroup_uncharging.  But if
+         * there's been a force_empty, those reference counts may no longer
+         * be reliable, and this charge can actually fail: oh well, we don't
+         * make the situation any worse by proceeding as if it had succeeded.
+         */
+        mem_cgroup_charge(new, mm, GFP_ATOMIC);
+
         get_page(new);
         pte = pte_mkold(mk_pte(new, vma->vm_page_prot));
         if (is_write_migration_entry(entry))
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 4194b9db0104..44b2da11bf43 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -412,7 +412,7 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
         return oom_kill_task(p);
 }
 
-#ifdef CONFIG_CGROUP_MEM_CONT
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
 void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask)
 {
         unsigned long points = 0;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8896e874a67d..402a504f1228 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -19,6 +19,7 @@
 #include <linux/swap.h>
 #include <linux/interrupt.h>
 #include <linux/pagemap.h>
+#include <linux/jiffies.h>
 #include <linux/bootmem.h>
 #include <linux/compiler.h>
 #include <linux/kernel.h>
@@ -221,13 +222,19 @@ static inline int bad_range(struct zone *zone, struct page *page)
 
 static void bad_page(struct page *page)
 {
-        printk(KERN_EMERG "Bad page state in process '%s'\n"
-                KERN_EMERG "page:%p flags:0x%0*lx mapping:%p mapcount:%d count:%d\n"
-                KERN_EMERG "Trying to fix it up, but a reboot is needed\n"
-                KERN_EMERG "Backtrace:\n",
+        void *pc = page_get_page_cgroup(page);
+
+        printk(KERN_EMERG "Bad page state in process '%s'\n" KERN_EMERG
+                "page:%p flags:0x%0*lx mapping:%p mapcount:%d count:%d\n",
                 current->comm, page, (int)(2*sizeof(unsigned long)),
                 (unsigned long)page->flags, page->mapping,
                 page_mapcount(page), page_count(page));
+        if (pc) {
+                printk(KERN_EMERG "cgroup:%p\n", pc);
+                page_reset_bad_cgroup(page);
+        }
+        printk(KERN_EMERG "Trying to fix it up, but a reboot is needed\n"
+                KERN_EMERG "Backtrace:\n");
         dump_stack();
         page->flags &= ~(1 << PG_lru    |
                         1 << PG_private |
@@ -453,6 +460,7 @@ static inline int free_pages_check(struct page *page)
 {
         if (unlikely(page_mapcount(page) |
                 (page->mapping != NULL)  |
+                (page_get_page_cgroup(page) != NULL) |
                 (page_count(page) != 0)  |
                 (page->flags & (
                         1 << PG_lru     |
@@ -602,6 +610,7 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags)
 {
         if (unlikely(page_mapcount(page) |
                 (page->mapping != NULL)  |
+                (page_get_page_cgroup(page) != NULL) |
                 (page_count(page) != 0)  |
                 (page->flags & (
                         1 << PG_lru     |
@@ -988,7 +997,6 @@ static void free_hot_cold_page(struct page *page, int cold)
 
         if (!PageHighMem(page))
                 debug_check_no_locks_freed(page_address(page), PAGE_SIZE);
-        VM_BUG_ON(page_get_page_cgroup(page));
         arch_free_page(page, 0);
         kernel_map_pages(page, 1, 0);
 
@@ -1276,7 +1284,7 @@ static nodemask_t *zlc_setup(struct zonelist *zonelist, int alloc_flags)
         if (!zlc)
                 return NULL;
 
-        if (jiffies - zlc->last_full_zap > 1 * HZ) {
+       if (time_after(jiffies, zlc->last_full_zap + HZ)) {
                 bitmap_zero(zlc->fullzones, MAX_ZONES_PER_ZONELIST);
                 zlc->last_full_zap = jiffies;
         }
@@ -2527,7 +2535,6 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
                 set_page_links(page, zone, nid, pfn);
                 init_page_count(page);
                 reset_page_mapcount(page);
-                page_assign_page_cgroup(page, NULL);
                 SetPageReserved(page);
 
                 /*
diff --git a/mm/rmap.c b/mm/rmap.c
index 8fd527c4e2bf..0c9a2df06c39 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -321,7 +321,7 @@ static int page_referenced_anon(struct page *page,
                  * counting on behalf of references from different
                  * cgroups
                  */
-                if (mem_cont && !vm_match_cgroup(vma->vm_mm, mem_cont))
+                if (mem_cont && !mm_match_cgroup(vma->vm_mm, mem_cont))
                         continue;
                 referenced += page_referenced_one(page, vma, &mapcount);
                 if (!mapcount)
@@ -382,7 +382,7 @@ static int page_referenced_file(struct page *page,
                  * counting on behalf of references from different
                  * cgroups
                  */
-                if (mem_cont && !vm_match_cgroup(vma->vm_mm, mem_cont))
+                if (mem_cont && !mm_match_cgroup(vma->vm_mm, mem_cont))
                         continue;
                 if ((vma->vm_flags & (VM_LOCKED|VM_MAYSHARE))
                                   == (VM_LOCKED|VM_MAYSHARE)) {
diff --git a/mm/shmem.c b/mm/shmem.c
index 90b576cbc06e..3372bc579e89 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1370,14 +1370,17 @@ repeat:
                         shmem_swp_unmap(entry);
                         spin_unlock(&info->lock);
                         unlock_page(swappage);
-                        page_cache_release(swappage);
                         if (error == -ENOMEM) {
                                 /* allow reclaim from this memory cgroup */
-                                error = mem_cgroup_cache_charge(NULL,
+                                error = mem_cgroup_cache_charge(swappage,
                                         current->mm, gfp & ~__GFP_HIGHMEM);
-                                if (error)
+                                if (error) {
+                                        page_cache_release(swappage);
                                         goto failed;
+                                }
+                                mem_cgroup_uncharge_page(swappage);
                         }
+                        page_cache_release(swappage);
                         goto repeat;
                 }
         } else if (sgp == SGP_READ && !filepage) {
diff --git a/mm/slub.c b/mm/slub.c
index 74c65af0a54f..0863fd38a5ce 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -291,32 +291,16 @@ static inline struct kmem_cache_cpu *get_cpu_slab(struct kmem_cache *s, int cpu)
 #endif
 }
 
-/*
- * The end pointer in a slab is special. It points to the first object in the
- * slab but has bit 0 set to mark it.
- *
- * Note that SLUB relies on page_mapping returning NULL for pages with bit 0
- * in the mapping set.
- */
-static inline int is_end(void *addr)
-{
-        return (unsigned long)addr & PAGE_MAPPING_ANON;
-}
-
-static void *slab_address(struct page *page)
-{
-        return page->end - PAGE_MAPPING_ANON;
-}
-
+/* Verify that a pointer has an address that is valid within a slab page */
 static inline int check_valid_pointer(struct kmem_cache *s,
                                 struct page *page, const void *object)
 {
         void *base;
 
-        if (object == page->end)
+        if (!object)
                 return 1;
 
-        base = slab_address(page);
+        base = page_address(page);
         if (object < base || object >= base + s->objects * s->size ||
                 (object - base) % s->size) {
                 return 0;
@@ -349,8 +333,7 @@ static inline void set_freepointer(struct kmem_cache *s, void *object, void *fp)
 
 /* Scan freelist */
 #define for_each_free_object(__p, __s, __free) \
-        for (__p = (__free); (__p) != page->end; __p = get_freepointer((__s),\
-                __p))
+        for (__p = (__free); __p; __p = get_freepointer((__s), __p))
 
 /* Determine object index from a given position */
 static inline int slab_index(void *p, struct kmem_cache *s, void *addr)
@@ -502,7 +485,7 @@ static void slab_fix(struct kmem_cache *s, char *fmt, ...)
 static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)
 {
         unsigned int off;       /* Offset of last byte */
-        u8 *addr = slab_address(page);
+        u8 *addr = page_address(page);
 
         print_tracking(s, p);
 
@@ -637,7 +620,7 @@ static int check_bytes_and_report(struct kmem_cache *s, struct page *page,
  *      A. Free pointer (if we cannot overwrite object on free)
  *      B. Tracking data for SLAB_STORE_USER
  *      C. Padding to reach required alignment boundary or at mininum
- *              one word if debuggin is on to be able to detect writes
+ *              one word if debugging is on to be able to detect writes
  *              before the word boundary.
  *
  *      Padding is done using 0x5a (POISON_INUSE)
@@ -680,7 +663,7 @@ static int slab_pad_check(struct kmem_cache *s, struct page *page)
         if (!(s->flags & SLAB_POISON))
                 return 1;
 
-        start = slab_address(page);
+        start = page_address(page);
         end = start + (PAGE_SIZE << s->order);
         length = s->objects * s->size;
         remainder = end - (start + length);
@@ -748,7 +731,7 @@ static int check_object(struct kmem_cache *s, struct page *page,
                  * of the free objects in this slab. May cause
                  * another error because the object count is now wrong.
                  */
-                set_freepointer(s, p, page->end);
+                set_freepointer(s, p, NULL);
                 return 0;
         }
         return 1;
@@ -782,18 +765,18 @@ static int on_freelist(struct kmem_cache *s, struct page *page, void *search)
         void *fp = page->freelist;
         void *object = NULL;
 
-        while (fp != page->end && nr <= s->objects) {
+        while (fp && nr <= s->objects) {
                 if (fp == search)
                         return 1;
                 if (!check_valid_pointer(s, page, fp)) {
                         if (object) {
                                 object_err(s, page, object,
                                         "Freechain corrupt");
-                                set_freepointer(s, object, page->end);
+                                set_freepointer(s, object, NULL);
                                 break;
                         } else {
                                 slab_err(s, page, "Freepointer corrupt");
-                                page->freelist = page->end;
+                                page->freelist = NULL;
                                 page->inuse = s->objects;
                                 slab_fix(s, "Freelist cleared");
                                 return 0;
@@ -870,7 +853,7 @@ static int alloc_debug_processing(struct kmem_cache *s, struct page *page,
         if (!check_slab(s, page))
                 goto bad;
 
-        if (object && !on_freelist(s, page, object)) {
+        if (!on_freelist(s, page, object)) {
                 object_err(s, page, object, "Object already allocated");
                 goto bad;
         }
@@ -880,7 +863,7 @@ static int alloc_debug_processing(struct kmem_cache *s, struct page *page,
                 goto bad;
         }
 
-        if (object && !check_object(s, page, object, 0))
+        if (!check_object(s, page, object, 0))
                 goto bad;
 
         /* Success perform special debug activities for allocs */
@@ -899,7 +882,7 @@ bad:
                  */
                 slab_fix(s, "Marking all objects used");
                 page->inuse = s->objects;
-                page->freelist = page->end;
+                page->freelist = NULL;
         }
         return 0;
 }
@@ -939,7 +922,7 @@ static int free_debug_processing(struct kmem_cache *s, struct page *page,
         }
 
         /* Special debug activities for freeing objects */
-        if (!SlabFrozen(page) && page->freelist == page->end)
+        if (!SlabFrozen(page) && !page->freelist)
                 remove_full(s, page);
         if (s->flags & SLAB_STORE_USER)
                 set_track(s, object, TRACK_FREE, addr);
@@ -1015,30 +998,11 @@ static unsigned long kmem_cache_flags(unsigned long objsize,
         void (*ctor)(struct kmem_cache *, void *))
 {
         /*
-         * The page->offset field is only 16 bit wide. This is an offset
-         * in units of words from the beginning of an object. If the slab
-         * size is bigger then we cannot move the free pointer behind the
-         * object anymore.
-         *
-         * On 32 bit platforms the limit is 256k. On 64bit platforms
-         * the limit is 512k.
-         *
-         * Debugging or ctor may create a need to move the free
-         * pointer. Fail if this happens.
+         * Enable debugging if selected on the kernel commandline.
          */
-        if (objsize >= 65535 * sizeof(void *)) {
-                BUG_ON(flags & (SLAB_RED_ZONE | SLAB_POISON |
-                                SLAB_STORE_USER | SLAB_DESTROY_BY_RCU));
-                BUG_ON(ctor);
-        } else {
-                /*
-                 * Enable debugging if selected on the kernel commandline.
-                 */
-                if (slub_debug && (!slub_debug_slabs ||
-                    strncmp(slub_debug_slabs, name,
-                        strlen(slub_debug_slabs)) == 0))
-                                flags |= slub_debug;
-        }
+        if (slub_debug && (!slub_debug_slabs ||
+            strncmp(slub_debug_slabs, name, strlen(slub_debug_slabs)) == 0))
+                        flags |= slub_debug;
 
         return flags;
 }
@@ -1124,7 +1088,6 @@ static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node)
                 SetSlabDebug(page);
 
         start = page_address(page);
-        page->end = start + 1;
 
         if (unlikely(s->flags & SLAB_POISON))
                 memset(start, POISON_INUSE, PAGE_SIZE << s->order);
@@ -1136,7 +1099,7 @@ static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node)
                 last = p;
         }
         setup_object(s, page, last);
-        set_freepointer(s, last, page->end);
+        set_freepointer(s, last, NULL);
 
         page->freelist = start;
         page->inuse = 0;
@@ -1152,7 +1115,7 @@ static void __free_slab(struct kmem_cache *s, struct page *page)
                 void *p;
 
                 slab_pad_check(s, page);
-                for_each_object(p, s, slab_address(page))
+                for_each_object(p, s, page_address(page))
                         check_object(s, page, p, 0);
                 ClearSlabDebug(page);
         }
@@ -1162,7 +1125,6 @@ static void __free_slab(struct kmem_cache *s, struct page *page)
                 NR_SLAB_RECLAIMABLE : NR_SLAB_UNRECLAIMABLE,
                 -pages);
 
-        page->mapping = NULL;
         __free_pages(page, s->order);
 }
 
@@ -1307,7 +1269,7 @@ static struct page *get_any_partial(struct kmem_cache *s, gfp_t flags)
          * may return off node objects because partial slabs are obtained
          * from other nodes and filled up.
          *
-         * If /sys/slab/xx/defrag_ratio is set to 100 (which makes
+         * If /sys/kernel/slab/xx/defrag_ratio is set to 100 (which makes
          * defrag_ratio = 1000) then every (well almost) allocation will
          * first attempt to defrag slab caches on other nodes. This means
          * scanning over all nodes to look for partial slabs which may be
@@ -1366,7 +1328,7 @@ static void unfreeze_slab(struct kmem_cache *s, struct page *page, int tail)
         ClearSlabFrozen(page);
         if (page->inuse) {
 
-                if (page->freelist != page->end) {
+                if (page->freelist) {
                         add_partial(n, page, tail);
                         stat(c, tail ? DEACTIVATE_TO_TAIL : DEACTIVATE_TO_HEAD);
                 } else {
@@ -1382,9 +1344,11 @@ static void unfreeze_slab(struct kmem_cache *s, struct page *page, int tail)
                          * Adding an empty slab to the partial slabs in order
                          * to avoid page allocator overhead. This slab needs
                          * to come after the other slabs with objects in
-                         * order to fill them up. That way the size of the
-                         * partial list stays small. kmem_cache_shrink can
-                         * reclaim empty slabs from the partial list.
+                         * so that the others get filled first. That way the
+                         * size of the partial list stays small.
+                         *
+                         * kmem_cache_shrink can reclaim any empty slabs from the
+                         * partial list.
                          */
                         add_partial(n, page, 1);
                         slab_unlock(page);
@@ -1407,15 +1371,11 @@ static void deactivate_slab(struct kmem_cache *s, struct kmem_cache_cpu *c)
         if (c->freelist)
                 stat(c, DEACTIVATE_REMOTE_FREES);
         /*
-         * Merge cpu freelist into freelist. Typically we get here
+         * Merge cpu freelist into slab freelist. Typically we get here
          * because both freelists are empty. So this is unlikely
          * to occur.
-         *
-         * We need to use _is_end here because deactivate slab may
-         * be called for a debug slab. Then c->freelist may contain
-         * a dummy pointer.
          */
-        while (unlikely(!is_end(c->freelist))) {
+        while (unlikely(c->freelist)) {
                 void **object;
 
                 tail = 0;       /* Hot objects. Put the slab first */
@@ -1442,6 +1402,7 @@ static inline void flush_slab(struct kmem_cache *s, struct kmem_cache_cpu *c)
 
 /*
  * Flush cpu slab.
+ *
  * Called from IPI handler with interrupts disabled.
  */
 static inline void __flush_cpu_slab(struct kmem_cache *s, int cpu)
@@ -1500,7 +1461,8 @@ static inline int node_match(struct kmem_cache_cpu *c, int node)
  * rest of the freelist to the lockless freelist.
  *
  * And if we were unable to get a new slab from the partial slab lists then
- * we need to allocate a new slab. This is slowest path since we may sleep.
+ * we need to allocate a new slab. This is the slowest path since it involves
+ * a call to the page allocator and the setup of a new slab.
  */
 static void *__slab_alloc(struct kmem_cache *s,
                 gfp_t gfpflags, int node, void *addr, struct kmem_cache_cpu *c)
@@ -1514,18 +1476,19 @@ static void *__slab_alloc(struct kmem_cache *s,
         slab_lock(c->page);
         if (unlikely(!node_match(c, node)))
                 goto another_slab;
+
         stat(c, ALLOC_REFILL);
+
 load_freelist:
         object = c->page->freelist;
-        if (unlikely(object == c->page->end))
+        if (unlikely(!object))
                 goto another_slab;
         if (unlikely(SlabDebug(c->page)))
                 goto debug;
 
-        object = c->page->freelist;
         c->freelist = object[c->offset];
         c->page->inuse = s->objects;
-        c->page->freelist = c->page->end;
+        c->page->freelist = NULL;
         c->node = page_to_nid(c->page);
 unlock_out:
         slab_unlock(c->page);
@@ -1578,7 +1541,6 @@ new_slab:
 
         return NULL;
 debug:
-        object = c->page->freelist;
         if (!alloc_debug_processing(s, c->page, object, addr))
                 goto another_slab;
 
@@ -1607,7 +1569,7 @@ static __always_inline void *slab_alloc(struct kmem_cache *s,
 
         local_irq_save(flags);
         c = get_cpu_slab(s, smp_processor_id());
-        if (unlikely(is_end(c->freelist) || !node_match(c, node)))
+        if (unlikely(!c->freelist || !node_match(c, node)))
 
                 object = __slab_alloc(s, gfpflags, node, addr, c);
 
@@ -1659,6 +1621,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page,
 
         if (unlikely(SlabDebug(page)))
                 goto debug;
+
 checks_ok:
         prior = object[offset] = page->freelist;
         page->freelist = object;
@@ -1673,11 +1636,10 @@ checks_ok:
                 goto slab_empty;
 
         /*
-         * Objects left in the slab. If it
-         * was not on the partial list before
+         * Objects left in the slab. If it was not on the partial list before
          * then add it.
          */
-        if (unlikely(prior == page->end)) {
+        if (unlikely(!prior)) {
                 add_partial(get_node(s, page_to_nid(page)), page, 1);
                 stat(c, FREE_ADD_PARTIAL);
         }
@@ -1687,7 +1649,7 @@ out_unlock:
         return;
 
 slab_empty:
-        if (prior != page->end) {
+        if (prior) {
                 /*
                  * Slab still on the partial list.
                  */
@@ -1724,8 +1686,8 @@ static __always_inline void slab_free(struct kmem_cache *s,
         unsigned long flags;
 
         local_irq_save(flags);
-        debug_check_no_locks_freed(object, s->objsize);
         c = get_cpu_slab(s, smp_processor_id());
+        debug_check_no_locks_freed(object, c->objsize);
         if (likely(page == c->page && c->node >= 0)) {
                 object[c->offset] = c->freelist;
                 c->freelist = object;
@@ -1888,13 +1850,11 @@ static unsigned long calculate_alignment(unsigned long flags,
                 unsigned long align, unsigned long size)
 {
         /*
-         * If the user wants hardware cache aligned objects then
-         * follow that suggestion if the object is sufficiently
-         * large.
+         * If the user wants hardware cache aligned objects then follow that
+         * suggestion if the object is sufficiently large.
          *
-         * The hardware cache alignment cannot override the
-         * specified alignment though. If that is greater
-         * then use it.
+         * The hardware cache alignment cannot override the specified
+         * alignment though. If that is greater then use it.
          */
         if ((flags & SLAB_HWCACHE_ALIGN) &&
                         size > cache_line_size() / 2)
@@ -1910,7 +1870,7 @@ static void init_kmem_cache_cpu(struct kmem_cache *s,
                         struct kmem_cache_cpu *c)
 {
         c->page = NULL;
-        c->freelist = (void *)PAGE_MAPPING_ANON;
+        c->freelist = NULL;
         c->node = 0;
         c->offset = s->offset / sizeof(void *);
         c->objsize = s->objsize;
@@ -2092,6 +2052,7 @@ static struct kmem_cache_node *early_kmem_cache_node_alloc(gfp_t gfpflags,
 #endif
         init_kmem_cache_node(n);
         atomic_long_inc(&n->nr_slabs);
+
         /*
          * lockdep requires consistent irq usage for each lock
          * so even though there cannot be a race this early in
@@ -2173,6 +2134,14 @@ static int calculate_sizes(struct kmem_cache *s)
         unsigned long align = s->align;
 
         /*
+         * Round up object size to the next word boundary. We can only
+         * place the free pointer at word boundaries and this determines
+         * the possible location of the free pointer.
+         */
+        size = ALIGN(size, sizeof(void *));
+
+#ifdef CONFIG_SLUB_DEBUG
+        /*
          * Determine if we can poison the object itself. If the user of
          * the slab may touch the object after free or before allocation
          * then we should never poison the object itself.
@@ -2183,14 +2152,7 @@ static int calculate_sizes(struct kmem_cache *s)
         else
                 s->flags &= ~__OBJECT_POISON;
 
-        /*
-         * Round up object size to the next word boundary. We can only
-         * place the free pointer at word boundaries and this determines
-         * the possible location of the free pointer.
-         */
-        size = ALIGN(size, sizeof(void *));
 
-#ifdef CONFIG_SLUB_DEBUG
         /*
          * If we are Redzoning then check if there is some space between the
          * end of the object and the free pointer. If not then add an
@@ -2343,7 +2305,7 @@ int kmem_ptr_validate(struct kmem_cache *s, const void *object)
         /*
          * We could also check if the object is on the slabs freelist.
          * But this would be too expensive and it seems that the main
-         * purpose of kmem_ptr_valid is to check if the object belongs
+         * purpose of kmem_ptr_valid() is to check if the object belongs
          * to a certain slab.
          */
         return 1;
@@ -2630,13 +2592,24 @@ void *__kmalloc(size_t size, gfp_t flags)
 }
 EXPORT_SYMBOL(__kmalloc);
 
+static void *kmalloc_large_node(size_t size, gfp_t flags, int node)
+{
+        struct page *page = alloc_pages_node(node, flags | __GFP_COMP,
+                                                get_order(size));
+
+        if (page)
+                return page_address(page);
+        else
+                return NULL;
+}
+
 #ifdef CONFIG_NUMA
 void *__kmalloc_node(size_t size, gfp_t flags, int node)
 {
         struct kmem_cache *s;
 
         if (unlikely(size > PAGE_SIZE))
-                return kmalloc_large(size, flags);
+                return kmalloc_large_node(size, flags, node);
 
         s = get_slab(size, flags);
 
@@ -2653,19 +2626,17 @@ size_t ksize(const void *object)
         struct page *page;
         struct kmem_cache *s;
 
-        BUG_ON(!object);
         if (unlikely(object == ZERO_SIZE_PTR))
                 return 0;
 
         page = virt_to_head_page(object);
-        BUG_ON(!page);
 
         if (unlikely(!PageSlab(page)))
                 return PAGE_SIZE << compound_order(page);
 
         s = page->slab;
-        BUG_ON(!s);
 
+#ifdef CONFIG_SLUB_DEBUG
         /*
          * Debugging requires use of the padding between object
          * and whatever may come after it.
@@ -2673,6 +2644,7 @@ size_t ksize(const void *object)
         if (s->flags & (SLAB_RED_ZONE | SLAB_POISON))
                 return s->objsize;
 
+#endif
         /*
          * If we have the need to store the freelist pointer
          * back there or track user information then we can
@@ -2680,7 +2652,6 @@ size_t ksize(const void *object)
          */
         if (s->flags & (SLAB_DESTROY_BY_RCU | SLAB_STORE_USER))
                 return s->inuse;
-
         /*
          * Else we can use all the padding etc for the allocation
          */
@@ -2957,7 +2928,7 @@ void __init kmem_cache_init(void)
         /*
          * Patch up the size_index table if we have strange large alignment
          * requirements for the kmalloc array. This is only the case for
-         * mips it seems. The standard arches will not generate any code here.
+         * MIPS it seems. The standard arches will not generate any code here.
          *
          * Largest permitted alignment is 256 bytes due to the way we
          * handle the index determination for the smaller caches.
@@ -2986,7 +2957,6 @@ void __init kmem_cache_init(void)
         kmem_size = sizeof(struct kmem_cache);
 #endif
 
-
         printk(KERN_INFO
                 "SLUB: Genslabs=%d, HWalign=%d, Order=%d-%d, MinObjects=%d,"
                 " CPUs=%d, Nodes=%d\n",
@@ -3083,12 +3053,15 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size,
                  */
                 for_each_online_cpu(cpu)
                         get_cpu_slab(s, cpu)->objsize = s->objsize;
+
                 s->inuse = max_t(int, s->inuse, ALIGN(size, sizeof(void *)));
                 up_write(&slub_lock);
+
                 if (sysfs_slab_alias(s, name))
                         goto err;
                 return s;
         }
+
         s = kmalloc(kmem_size, GFP_KERNEL);
         if (s) {
                 if (kmem_cache_open(s, GFP_KERNEL, name,
@@ -3184,7 +3157,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
         struct kmem_cache *s;
 
         if (unlikely(size > PAGE_SIZE))
-                return kmalloc_large(size, gfpflags);
+                return kmalloc_large_node(size, gfpflags, node);
 
         s = get_slab(size, gfpflags);
 
@@ -3199,7 +3172,7 @@ static int validate_slab(struct kmem_cache *s, struct page *page,
                                                 unsigned long *map)
 {
         void *p;
-        void *addr = slab_address(page);
+        void *addr = page_address(page);
 
         if (!check_slab(s, page) ||
                         !on_freelist(s, page, NULL))
@@ -3482,7 +3455,7 @@ static int add_location(struct loc_track *t, struct kmem_cache *s,
 static void process_slab(struct loc_track *t, struct kmem_cache *s,
                 struct page *page, enum track_item alloc)
 {
-        void *addr = slab_address(page);
+        void *addr = page_address(page);
         DECLARE_BITMAP(map, s->objects);
         void *p;
 
@@ -3591,8 +3564,8 @@ enum slab_stat_type {
 #define SO_CPU          (1 << SL_CPU)
 #define SO_OBJECTS      (1 << SL_OBJECTS)
 
-static unsigned long slab_objects(struct kmem_cache *s,
-                        char *buf, unsigned long flags)
+static ssize_t show_slab_objects(struct kmem_cache *s,
+                            char *buf, unsigned long flags)
 {
         unsigned long total = 0;
         int cpu;
@@ -3602,6 +3575,8 @@ static unsigned long slab_objects(struct kmem_cache *s,
         unsigned long *per_cpu;
 
         nodes = kzalloc(2 * sizeof(unsigned long) * nr_node_ids, GFP_KERNEL);
+        if (!nodes)
+                return -ENOMEM;
         per_cpu = nodes + nr_node_ids;
 
         for_each_possible_cpu(cpu) {
@@ -3754,25 +3729,25 @@ SLAB_ATTR_RO(aliases);
 
 static ssize_t slabs_show(struct kmem_cache *s, char *buf)
 {
-        return slab_objects(s, buf, SO_FULL|SO_PARTIAL|SO_CPU);
+        return show_slab_objects(s, buf, SO_FULL|SO_PARTIAL|SO_CPU);
 }
 SLAB_ATTR_RO(slabs);
 
 static ssize_t partial_show(struct kmem_cache *s, char *buf)
 {
-        return slab_objects(s, buf, SO_PARTIAL);
+        return show_slab_objects(s, buf, SO_PARTIAL);
 }
 SLAB_ATTR_RO(partial);
 
 static ssize_t cpu_slabs_show(struct kmem_cache *s, char *buf)
 {
-        return slab_objects(s, buf, SO_CPU);
+        return show_slab_objects(s, buf, SO_CPU);
 }
 SLAB_ATTR_RO(cpu_slabs);
 
 static ssize_t objects_show(struct kmem_cache *s, char *buf)
 {
-        return slab_objects(s, buf, SO_FULL|SO_PARTIAL|SO_CPU|SO_OBJECTS);
+        return show_slab_objects(s, buf, SO_FULL|SO_PARTIAL|SO_CPU|SO_OBJECTS);
 }
 SLAB_ATTR_RO(objects);
 
@@ -3971,7 +3946,6 @@ SLAB_ATTR(remote_node_defrag_ratio);
 #endif
 
 #ifdef CONFIG_SLUB_STATS
-
 static int show_stat(struct kmem_cache *s, char *buf, enum stat_item si)
 {
         unsigned long sum  = 0;
@@ -4155,8 +4129,8 @@ static struct kset *slab_kset;
 #define ID_STR_LENGTH 64
 
 /* Create a unique string id for a slab cache:
- * format
- * :[flags-]size:[memory address of kmemcache]
+ *
+ * Format       :[flags-]size
  */
 static char *create_unique_id(struct kmem_cache *s)
 {
diff --git a/mm/swap.c b/mm/swap.c
index 710a20bb9749..d4ec59aa5c46 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -176,7 +176,7 @@ void activate_page(struct page *page)
                 SetPageActive(page);
                 add_page_to_active_list(zone, page);
                 __count_vm_event(PGACTIVATE);
-                mem_cgroup_move_lists(page_get_page_cgroup(page), true);
+                mem_cgroup_move_lists(page, true);
         }
         spin_unlock_irq(&zone->lru_lock);
 }
diff --git a/mm/truncate.c b/mm/truncate.c
index c35c49e54fb6..7d20ce41ecf5 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -134,8 +134,7 @@ invalidate_complete_page(struct address_space *mapping, struct page *page)
 }
 
 /**
- * truncate_inode_pages - truncate range of pages specified by start and
- * end byte offsets
+ * truncate_inode_pages - truncate range of pages specified by start & end byte offsets
  * @mapping: mapping to truncate
  * @lstart: offset from which to truncate
  * @lend: offset to which to truncate
diff --git a/mm/vmscan.c b/mm/vmscan.c
index a26dabd62fed..45711585684e 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -126,7 +126,7 @@ long vm_total_pages;	/* The total number of pages which the VM controls */
 static LIST_HEAD(shrinker_list);
 static DECLARE_RWSEM(shrinker_rwsem);
 
-#ifdef CONFIG_CGROUP_MEM_CONT
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
 #define scan_global_lru(sc)     (!(sc)->mem_cgroup)
 #else
 #define scan_global_lru(sc)     (1)
@@ -1128,7 +1128,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
                 ClearPageActive(page);
 
                 list_move(&page->lru, &zone->inactive_list);
-                mem_cgroup_move_lists(page_get_page_cgroup(page), false);
+                mem_cgroup_move_lists(page, false);
                 pgmoved++;
                 if (!pagevec_add(&pvec, page)) {
                         __mod_zone_page_state(zone, NR_INACTIVE, pgmoved);
@@ -1156,8 +1156,9 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
                 VM_BUG_ON(PageLRU(page));
                 SetPageLRU(page);
                 VM_BUG_ON(!PageActive(page));
+
                 list_move(&page->lru, &zone->active_list);
-                mem_cgroup_move_lists(page_get_page_cgroup(page), true);
+                mem_cgroup_move_lists(page, true);
                 pgmoved++;
                 if (!pagevec_add(&pvec, page)) {
                         __mod_zone_page_state(zone, NR_ACTIVE, pgmoved);
@@ -1427,7 +1428,7 @@ unsigned long try_to_free_pages(struct zone **zones, int order, gfp_t gfp_mask)
         return do_try_to_free_pages(zones, gfp_mask, &sc);
 }
 
-#ifdef CONFIG_CGROUP_MEM_CONT
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
 
 unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont,
                                                 gfp_t gfp_mask)
diff --git a/samples/Kconfig b/samples/Kconfig
index 74d97cc24787..e1fb471cc501 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -22,5 +22,16 @@ config SAMPLE_KOBJECT
 
           If in doubt, say "N" here.
 
+config SAMPLE_KPROBES
+        tristate "Build kprobes examples -- loadable modules only"
+        depends on KPROBES && m
+        help
+          This build several kprobes example modules.
+
+config SAMPLE_KRETPROBES
+        tristate "Build kretprobes example -- loadable modules only"
+        default m
+        depends on SAMPLE_KPROBES && KRETPROBES
+
 endif # SAMPLES
 
diff --git a/samples/Makefile b/samples/Makefile
index 8652d0f268ad..2e02575f7794 100644
--- a/samples/Makefile
+++ b/samples/Makefile
@@ -1,3 +1,3 @@
 # Makefile for Linux samples code
 
-obj-$(CONFIG_SAMPLES)   += markers/ kobject/
+obj-$(CONFIG_SAMPLES)   += markers/ kobject/ kprobes/
diff --git a/samples/kprobes/Makefile b/samples/kprobes/Makefile
new file mode 100644
index 000000000000..68739bc4fc6a
--- /dev/null
+++ b/samples/kprobes/Makefile
@@ -0,0 +1,5 @@
+# builds the kprobes example kernel modules;
+# then to use one (as root):  insmod <module_name.ko>
+
+obj-$(CONFIG_SAMPLE_KPROBES) += kprobe_example.o jprobe_example.o
+obj-$(CONFIG_SAMPLE_KRETPROBES) += kretprobe_example.o
diff --git a/samples/kprobes/jprobe_example.c b/samples/kprobes/jprobe_example.c
new file mode 100644
index 000000000000..b7541355b92b
--- /dev/null
+++ b/samples/kprobes/jprobe_example.c
@@ -0,0 +1,68 @@
+/*
+ * Here's a sample kernel module showing the use of jprobes to dump
+ * the arguments of do_fork().
+ *
+ * For more information on theory of operation of jprobes, see
+ * Documentation/kprobes.txt
+ *
+ * Build and insert the kernel module as done in the kprobe example.
+ * You will see the trace data in /var/log/messages and on the
+ * console whenever do_fork() is invoked to create a new process.
+ * (Some messages may be suppressed if syslogd is configured to
+ * eliminate duplicate messages.)
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/kprobes.h>
+
+/*
+ * Jumper probe for do_fork.
+ * Mirror principle enables access to arguments of the probed routine
+ * from the probe handler.
+ */
+
+/* Proxy routine having the same arguments as actual do_fork() routine */
+static long jdo_fork(unsigned long clone_flags, unsigned long stack_start,
+              struct pt_regs *regs, unsigned long stack_size,
+              int __user *parent_tidptr, int __user *child_tidptr)
+{
+        printk(KERN_INFO "jprobe: clone_flags = 0x%lx, stack_size = 0x%lx,"
+                        " regs = 0x%p\n",
+               clone_flags, stack_size, regs);
+
+        /* Always end with a call to jprobe_return(). */
+        jprobe_return();
+        return 0;
+}
+
+static struct jprobe my_jprobe = {
+        .entry                  = jdo_fork,
+        .kp = {
+                .symbol_name    = "do_fork",
+        },
+};
+
+static int __init jprobe_init(void)
+{
+        int ret;
+
+        ret = register_jprobe(&my_jprobe);
+        if (ret < 0) {
+                printk(KERN_INFO "register_jprobe failed, returned %d\n", ret);
+                return -1;
+        }
+        printk(KERN_INFO "Planted jprobe at %p, handler addr %p\n",
+               my_jprobe.kp.addr, my_jprobe.entry);
+        return 0;
+}
+
+static void __exit jprobe_exit(void)
+{
+        unregister_jprobe(&my_jprobe);
+        printk(KERN_INFO "jprobe at %p unregistered\n", my_jprobe.kp.addr);
+}
+
+module_init(jprobe_init)
+module_exit(jprobe_exit)
+MODULE_LICENSE("GPL");
diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c
new file mode 100644
index 000000000000..a681998a871c
--- /dev/null
+++ b/samples/kprobes/kprobe_example.c
@@ -0,0 +1,91 @@
+/*
+ * NOTE: This example is works on x86 and powerpc.
+ * Here's a sample kernel module showing the use of kprobes to dump a
+ * stack trace and selected registers when do_fork() is called.
+ *
+ * For more information on theory of operation of kprobes, see
+ * Documentation/kprobes.txt
+ *
+ * You will see the trace data in /var/log/messages and on the console
+ * whenever do_fork() is invoked to create a new process.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/kprobes.h>
+
+/* For each probe you need to allocate a kprobe structure */
+static struct kprobe kp = {
+        .symbol_name    = "do_fork",
+};
+
+/* kprobe pre_handler: called just before the probed instruction is executed */
+static int handler_pre(struct kprobe *p, struct pt_regs *regs)
+{
+#ifdef CONFIG_X86
+        printk(KERN_INFO "pre_handler: p->addr = 0x%p, ip = %lx,"
+                        " flags = 0x%lx\n",
+                p->addr, regs->ip, regs->flags);
+#endif
+#ifdef CONFIG_PPC
+        printk(KERN_INFO "pre_handler: p->addr = 0x%p, nip = 0x%lx,"
+                        " msr = 0x%lx\n",
+                p->addr, regs->nip, regs->msr);
+#endif
+
+        /* A dump_stack() here will give a stack backtrace */
+        return 0;
+}
+
+/* kprobe post_handler: called after the probed instruction is executed */
+static void handler_post(struct kprobe *p, struct pt_regs *regs,
+                                unsigned long flags)
+{
+#ifdef CONFIG_X86
+        printk(KERN_INFO "post_handler: p->addr = 0x%p, flags = 0x%lx\n",
+                p->addr, regs->flags);
+#endif
+#ifdef CONFIG_PPC
+        printk(KERN_INFO "post_handler: p->addr = 0x%p, msr = 0x%lx\n",
+                p->addr, regs->msr);
+#endif
+}
+
+/*
+ * fault_handler: this is called if an exception is generated for any
+ * instruction within the pre- or post-handler, or when Kprobes
+ * single-steps the probed instruction.
+ */
+static int handler_fault(struct kprobe *p, struct pt_regs *regs, int trapnr)
+{
+        printk(KERN_INFO "fault_handler: p->addr = 0x%p, trap #%dn",
+                p->addr, trapnr);
+        /* Return 0 because we don't handle the fault. */
+        return 0;
+}
+
+static int __init kprobe_init(void)
+{
+        int ret;
+        kp.pre_handler = handler_pre;
+        kp.post_handler = handler_post;
+        kp.fault_handler = handler_fault;
+
+        ret = register_kprobe(&kp);
+        if (ret < 0) {
+                printk(KERN_INFO "register_kprobe failed, returned %d\n", ret);
+                return ret;
+        }
+        printk(KERN_INFO "Planted kprobe at %p\n", kp.addr);
+        return 0;
+}
+
+static void __exit kprobe_exit(void)
+{
+        unregister_kprobe(&kp);
+        printk(KERN_INFO "kprobe at %p unregistered\n", kp.addr);
+}
+
+module_init(kprobe_init)
+module_exit(kprobe_exit)
+MODULE_LICENSE("GPL");
diff --git a/samples/kprobes/kretprobe_example.c b/samples/kprobes/kretprobe_example.c
new file mode 100644
index 000000000000..4e764b317d61
--- /dev/null
+++ b/samples/kprobes/kretprobe_example.c
@@ -0,0 +1,106 @@
+/*
+ * kretprobe_example.c
+ *
+ * Here's a sample kernel module showing the use of return probes to
+ * report the return value and total time taken for probed function
+ * to run.
+ *
+ * usage: insmod kretprobe_example.ko func=<func_name>
+ *
+ * If no func_name is specified, do_fork is instrumented
+ *
+ * For more information on theory of operation of kretprobes, see
+ * Documentation/kprobes.txt
+ *
+ * Build and insert the kernel module as done in the kprobe example.
+ * You will see the trace data in /var/log/messages and on the console
+ * whenever the probed function returns. (Some messages may be suppressed
+ * if syslogd is configured to eliminate duplicate messages.)
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/kprobes.h>
+#include <linux/ktime.h>
+#include <linux/limits.h>
+
+static char func_name[NAME_MAX] = "do_fork";
+module_param_string(func, func_name, NAME_MAX, S_IRUGO);
+MODULE_PARM_DESC(func, "Function to kretprobe; this module will report the"
+                        " function's execution time");
+
+/* per-instance private data */
+struct my_data {
+        ktime_t entry_stamp;
+};
+
+/* Here we use the entry_hanlder to timestamp function entry */
+static int entry_handler(struct kretprobe_instance *ri, struct pt_regs *regs)
+{
+        struct my_data *data;
+
+        if (!current->mm)
+                return 1;       /* Skip kernel threads */
+
+        data = (struct my_data *)ri->data;
+        data->entry_stamp = ktime_get();
+        return 0;
+}
+
+/*
+ * Return-probe handler: Log the return value and duration. Duration may turn
+ * out to be zero consistently, depending upon the granularity of time
+ * accounting on the platform.
+ */
+static int ret_handler(struct kretprobe_instance *ri, struct pt_regs *regs)
+{
+        int retval = regs_return_value(regs);
+        struct my_data *data = (struct my_data *)ri->data;
+        s64 delta;
+        ktime_t now;
+
+        now = ktime_get();
+        delta = ktime_to_ns(ktime_sub(now, data->entry_stamp));
+        printk(KERN_INFO "%s returned %d and took %lld ns to execute\n",
+                        func_name, retval, (long long)delta);
+        return 0;
+}
+
+static struct kretprobe my_kretprobe = {
+        .handler                = ret_handler,
+        .entry_handler          = entry_handler,
+        .data_size              = sizeof(struct my_data),
+        /* Probe up to 20 instances concurrently. */
+        .maxactive              = 20,
+};
+
+static int __init kretprobe_init(void)
+{
+        int ret;
+
+        my_kretprobe.kp.symbol_name = func_name;
+        ret = register_kretprobe(&my_kretprobe);
+        if (ret < 0) {
+                printk(KERN_INFO "register_kretprobe failed, returned %d\n",
+                                ret);
+                return -1;
+        }
+        printk(KERN_INFO "Planted return probe at %s: %p\n",
+                        my_kretprobe.kp.symbol_name, my_kretprobe.kp.addr);
+        return 0;
+}
+
+static void __exit kretprobe_exit(void)
+{
+        unregister_kretprobe(&my_kretprobe);
+        printk(KERN_INFO "kretprobe at %p unregistered\n",
+                        my_kretprobe.kp.addr);
+
+        /* nmissed > 0 suggests that maxactive was set too low. */
+        printk(KERN_INFO "Missed probing %d instances of %s\n",
+                my_kretprobe.nmissed, my_kretprobe.kp.symbol_name);
+}
+
+module_init(kretprobe_init)
+module_exit(kretprobe_exit)
+MODULE_LICENSE("GPL");
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 2086a856400a..2a7cef9726e4 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -9,7 +9,7 @@ use strict;
 my $P = $0;
 $P =~ s@.*/@@g;
 
-my $V = '0.14';
+my $V = '0.15';
 
 use Getopt::Long qw(:config no_auto_abbrev);
 
@@ -105,8 +105,7 @@ our $Sparse	= qr{
                         __iomem|
                         __must_check|
                         __init_refok|
-                        __kprobes|
-                        fastcall
+                        __kprobes
                 }x;
 our $Attribute  = qr{
                         const|
@@ -158,7 +157,10 @@ sub build_types {
                         \b
                         (?:const\s+)?
                         (?:unsigned\s+)?
-                        $all
+                        (?:
+                                $all|
+                                (?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)
+                        )
                         (?:\s+$Sparse|\s+const)*
                         \b
                   }x;
@@ -362,6 +364,7 @@ sub ctx_statement_block {
 
         my $type = '';
         my $level = 0;
+        my $p;
         my $c;
         my $len = 0;
 
@@ -386,6 +389,7 @@ sub ctx_statement_block {
                                 last;
                         }
                 }
+                $p = $c;
                 $c = substr($blk, $off, 1);
                 $remainder = substr($blk, $off);
 
@@ -397,8 +401,9 @@ sub ctx_statement_block {
                 }
 
                 # An else is really a conditional as long as its not else if
-                if ($level == 0 && $remainder =~ /(\s+else)(?:\s|{)/ &&
-                                        $remainder !~ /\s+else\s+if\b/) {
+                if ($level == 0 && (!defined($p) || $p =~ /(?:\s|\})/) &&
+                                $remainder =~ /(else)(?:\s|{)/ &&
+                                $remainder !~ /else\s+if\b/) {
                         $coff = $off + length($1);
                 }
 
@@ -445,21 +450,73 @@ sub ctx_statement_block {
                         $line, $remain + 1, $off - $loff + 1, $level);
 }
 
+sub statement_lines {
+        my ($stmt) = @_;
+
+        # Strip the diff line prefixes and rip blank lines at start and end.
+        $stmt =~ s/(^|\n)./$1/g;
+        $stmt =~ s/^\s*//;
+        $stmt =~ s/\s*$//;
+
+        my @stmt_lines = ($stmt =~ /\n/g);
+
+        return $#stmt_lines + 2;
+}
+
+sub statement_rawlines {
+        my ($stmt) = @_;
+
+        my @stmt_lines = ($stmt =~ /\n/g);
+
+        return $#stmt_lines + 2;
+}
+
+sub statement_block_size {
+        my ($stmt) = @_;
+
+        $stmt =~ s/(^|\n)./$1/g;
+        $stmt =~ s/^\s*{//;
+        $stmt =~ s/}\s*$//;
+        $stmt =~ s/^\s*//;
+        $stmt =~ s/\s*$//;
+
+        my @stmt_lines = ($stmt =~ /\n/g);
+        my @stmt_statements = ($stmt =~ /;/g);
+
+        my $stmt_lines = $#stmt_lines + 2;
+        my $stmt_statements = $#stmt_statements + 1;
+
+        if ($stmt_lines > $stmt_statements) {
+                return $stmt_lines;
+        } else {
+                return $stmt_statements;
+        }
+}
+
 sub ctx_statement_full {
         my ($linenr, $remain, $off) = @_;
         my ($statement, $condition, $level);
 
         my (@chunks);
 
+        # Grab the first conditional/block pair.
         ($statement, $condition, $linenr, $remain, $off, $level) =
                                 ctx_statement_block($linenr, $remain, $off);
         #print "F: c<$condition> s<$statement>\n";
+        push(@chunks, [ $condition, $statement ]);
+        if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:if|else|do)\b/s)) {
+                return ($level, $linenr, @chunks);
+        }
+
+        # Pull in the following conditional/block pairs and see if they
+        # could continue the statement.
         for (;;) {
-                push(@chunks, [ $condition, $statement ]);
-                last if (!($remain > 0 && $condition =~ /^.\s*(?:if|else|do)/));
                 ($statement, $condition, $linenr, $remain, $off, $level) =
                                 ctx_statement_block($linenr, $remain, $off);
-                #print "C: c<$condition> s<$statement>\n";
+                #print "C: c<$condition> s<$statement> remain<$remain>\n";
+                last if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:else|do)\b/s));
+                #print "C: push\n";
+                push(@chunks, [ $condition, $statement ]);
         }
 
         return ($level, $linenr, @chunks);
@@ -593,13 +650,13 @@ sub cat_vet {
 }
 
 my $av_preprocessor = 0;
-my $av_paren = 0;
+my $av_pending;
 my @av_paren_type;
 
 sub annotate_reset {
         $av_preprocessor = 0;
-        $av_paren = 0;
-        @av_paren_type = ();
+        $av_pending = '_';
+        @av_paren_type = ('E');
 }
 
 sub annotate_values {
@@ -611,12 +668,13 @@ sub annotate_values {
         print "$stream\n" if ($dbg_values > 1);
 
         while (length($cur)) {
-                print " <$type> " if ($dbg_values > 1);
+                print " <" . join('', @av_paren_type) .
+                                        "> <$type> " if ($dbg_values > 1);
                 if ($cur =~ /^(\s+)/o) {
                         print "WS($1)\n" if ($dbg_values > 1);
                         if ($1 =~ /\n/ && $av_preprocessor) {
+                                $type = pop(@av_paren_type);
                                 $av_preprocessor = 0;
-                                $type = 'N';
                         }
 
                 } elsif ($cur =~ /^($Type)/) {
@@ -626,11 +684,33 @@ sub annotate_values {
                 } elsif ($cur =~ /^(#\s*define\s*$Ident)(\(?)/o) {
                         print "DEFINE($1)\n" if ($dbg_values > 1);
                         $av_preprocessor = 1;
-                        $av_paren_type[$av_paren] = 'N';
+                        $av_pending = 'N';
 
-                } elsif ($cur =~ /^(#\s*(?:ifdef|ifndef|if|else|elif|endif))/o) {
-                        print "PRE($1)\n" if ($dbg_values > 1);
+                } elsif ($cur =~ /^(#\s*(?:ifdef|ifndef|if))/o) {
+                        print "PRE_START($1)\n" if ($dbg_values > 1);
                         $av_preprocessor = 1;
+
+                        push(@av_paren_type, $type);
+                        push(@av_paren_type, $type);
+                        $type = 'N';
+
+                } elsif ($cur =~ /^(#\s*(?:else|elif))/o) {
+                        print "PRE_RESTART($1)\n" if ($dbg_values > 1);
+                        $av_preprocessor = 1;
+
+                        push(@av_paren_type, $av_paren_type[$#av_paren_type]);
+
+                        $type = 'N';
+
+                } elsif ($cur =~ /^(#\s*(?:endif))/o) {
+                        print "PRE_END($1)\n" if ($dbg_values > 1);
+
+                        $av_preprocessor = 1;
+
+                        # Assume all arms of the conditional end as this
+                        # one does, and continue as if the #endif was not here.
+                        pop(@av_paren_type);
+                        push(@av_paren_type, $type);
                         $type = 'N';
 
                 } elsif ($cur =~ /^(\\\n)/o) {
@@ -639,13 +719,13 @@ sub annotate_values {
                 } elsif ($cur =~ /^(sizeof)\s*(\()?/o) {
                         print "SIZEOF($1)\n" if ($dbg_values > 1);
                         if (defined $2) {
-                                $av_paren_type[$av_paren] = 'V';
+                                $av_pending = 'V';
                         }
                         $type = 'N';
 
                 } elsif ($cur =~ /^(if|while|typeof|__typeof__|for)\b/o) {
                         print "COND($1)\n" if ($dbg_values > 1);
-                        $av_paren_type[$av_paren] = 'N';
+                        $av_pending = 'N';
                         $type = 'N';
 
                 } elsif ($cur =~/^(return|case|else)/o) {
@@ -654,14 +734,14 @@ sub annotate_values {
 
                 } elsif ($cur =~ /^(\()/o) {
                         print "PAREN('$1')\n" if ($dbg_values > 1);
-                        $av_paren++;
+                        push(@av_paren_type, $av_pending);
+                        $av_pending = '_';
                         $type = 'N';
 
                 } elsif ($cur =~ /^(\))/o) {
-                        $av_paren-- if ($av_paren > 0);
-                        if (defined $av_paren_type[$av_paren]) {
-                                $type = $av_paren_type[$av_paren];
-                                undef $av_paren_type[$av_paren];
+                        my $new_type = pop(@av_paren_type);
+                        if ($new_type ne '_') {
+                                $type = $new_type;
                                 print "PAREN('$1') -> $type\n"
                                                         if ($dbg_values > 1);
                         } else {
@@ -670,7 +750,7 @@ sub annotate_values {
 
                 } elsif ($cur =~ /^($Ident)\(/o) {
                         print "FUNC($1)\n" if ($dbg_values > 1);
-                        $av_paren_type[$av_paren] = 'V';
+                        $av_pending = 'V';
 
                 } elsif ($cur =~ /^($Ident|$Constant)/o) {
                         print "IDENT($1)\n" if ($dbg_values > 1);
@@ -680,11 +760,11 @@ sub annotate_values {
                         print "ASSIGN($1)\n" if ($dbg_values > 1);
                         $type = 'N';
 
-                } elsif ($cur =~/^(;)/) {
+                } elsif ($cur =~/^(;|{|})/) {
                         print "END($1)\n" if ($dbg_values > 1);
                         $type = 'E';
 
-                } elsif ($cur =~ /^(;|{|}|\?|:|\[)/o) {
+                } elsif ($cur =~ /^(;|\?|:|\[)/o) {
                         print "CLOSE($1)\n" if ($dbg_values > 1);
                         $type = 'N';
 
@@ -988,7 +1068,7 @@ sub process {
                 }
 
 # check for RCS/CVS revision markers
-                if ($rawline =~ /\$(Revision|Log|Id)(?:\$|)/) {
+                if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) {
                         WARN("CVS style keyword markers, these will _not_ be updated\n". $herecurr);
                 }
 
@@ -999,41 +1079,44 @@ sub process {
 
 # Check for potential 'bare' types
                 if ($realcnt) {
+                        my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
+                        $s =~ s/\n./ /g;
+                        $s =~ s/{.*$//;
+
                         # Ignore goto labels.
-                        if ($line =~ /$Ident:\*$/) {
+                        if ($s =~ /$Ident:\*$/) {
 
                         # Ignore functions being called
-                        } elsif ($line =~ /^.\s*$Ident\s*\(/) {
+                        } elsif ($s =~ /^.\s*$Ident\s*\(/) {
 
                         # definitions in global scope can only start with types
-                        } elsif ($line =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b/) {
-                                possible($1, $line);
+                        } elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b/) {
+                                possible($1, $s);
 
                         # declarations always start with types
-                        } elsif ($prev_values eq 'E' && $line =~ /^.\s*(?:$Storage\s+)?(?:const\s+)?($Ident)\b(:?\s+$Sparse)?\s*\**\s*$Ident\s*(?:;|=|,)/) {
-                                possible($1);
+                        } elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:const\s+)?($Ident)\b(:?\s+$Sparse)?\s*\**\s*$Ident\s*(?:;|=|,)/) {
+                                possible($1, $s);
                         }
 
                         # any (foo ... *) is a pointer cast, and foo is a type
-                        while ($line =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/g) {
-                                possible($1, $line);
+                        while ($s =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/g) {
+                                possible($1, $s);
                         }
 
                         # Check for any sort of function declaration.
                         # int foo(something bar, other baz);
                         # void (*store_gdt)(x86_descr_ptr *);
-                        if ($prev_values eq 'E' && $line =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/) {
+                        if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/) {
                                 my ($name_len) = length($1);
-                                my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, $name_len);
-                                my $ctx = join("\n", @ctx);
 
-                                $ctx =~ s/\n.//;
+                                my $ctx = $s;
                                 substr($ctx, 0, $name_len + 1) = '';
                                 $ctx =~ s/\)[^\)]*$//;
+
                                 for my $arg (split(/\s*,\s*/, $ctx)) {
                                         if ($arg =~ /^(?:const\s+)?($Ident)(?:\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/ || $arg =~ /^($Ident)$/) {
 
-                                                possible($1, $line);
+                                                possible($1, $s);
                                         }
                                 }
                         }
@@ -1100,8 +1183,8 @@ sub process {
                 $curr_values = $prev_values . $curr_values;
                 if ($dbg_values) {
                         my $outline = $opline; $outline =~ s/\t/ /g;
-                        warn "--> .$outline\n";
-                        warn "--> $curr_values\n";
+                        print "$linenr > .$outline\n";
+                        print "$linenr > $curr_values\n";
                 }
                 $prev_values = substr($curr_values, -1);
 
@@ -1148,7 +1231,9 @@ sub process {
                         if (($prevline !~ /^}/) &&
                            ($prevline !~ /^\+}/) &&
                            ($prevline !~ /^ }/) &&
-                           ($prevline !~ /\b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=)/)) {
+                           ($prevline !~ /^.DECLARE_$Ident\(\Q$name\E\)/) &&
+                           ($prevline !~ /^.LIST_HEAD\(\Q$name\E\)/) &&
+                           ($prevline !~ /\b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=|\[)/)) {
                                 WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr);
                         }
                 }
@@ -1266,7 +1351,7 @@ sub process {
                                 =>|->|<<|>>|<|>|=|!|~|
                                 &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
                         }x;
-                        my @elements = split(/($;+|$ops|;)/, $opline);
+                        my @elements = split(/($ops|;)/, $opline);
                         my $off = 0;
 
                         my $blank = copy_spacing($opline);
@@ -1277,6 +1362,7 @@ sub process {
                                 my $a = '';
                                 $a = 'V' if ($elements[$n] ne '');
                                 $a = 'W' if ($elements[$n] =~ /\s$/);
+                                $a = 'C' if ($elements[$n] =~ /$;$/);
                                 $a = 'B' if ($elements[$n] =~ /(\[|\()$/);
                                 $a = 'O' if ($elements[$n] eq '');
                                 $a = 'E' if ($elements[$n] eq '' && $n == 0);
@@ -1287,6 +1373,7 @@ sub process {
                                 if (defined $elements[$n + 2]) {
                                         $c = 'V' if ($elements[$n + 2] ne '');
                                         $c = 'W' if ($elements[$n + 2] =~ /^\s/);
+                                        $c = 'C' if ($elements[$n + 2] =~ /^$;/);
                                         $c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
                                         $c = 'O' if ($elements[$n + 2] eq '');
                                         $c = 'E' if ($elements[$n + 2] =~ /\s*\\$/);
@@ -1330,13 +1417,13 @@ sub process {
                                 if ($op_type ne 'V' &&
                                     $ca =~ /\s$/ && $cc =~ /^\s*,/) {
 
-                                # Ignore comments
-                                } elsif ($op =~ /^$;+$/) {
+#                               # Ignore comments
+#                               } elsif ($op =~ /^$;+$/) {
 
                                 # ; should have either the end of line or a space or \ after it
                                 } elsif ($op eq ';') {
-                                        if ($ctx !~ /.x[WEB]/ && $cc !~ /^\\/ &&
-                                            $cc !~ /^;/) {
+                                        if ($ctx !~ /.x[WEBC]/ &&
+                                            $cc !~ /^\\/ && $cc !~ /^;/) {
                                                 ERROR("need space after that '$op' $at\n" . $hereptr);
                                         }
 
@@ -1351,7 +1438,7 @@ sub process {
 
                                 # , must have a space on the right.
                                 } elsif ($op eq ',') {
-                                        if ($ctx !~ /.xW|.xE/ && $cc !~ /^}/) {
+                                        if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) {
                                                 ERROR("need space after that '$op' $at\n" . $hereptr);
                                         }
 
@@ -1364,7 +1451,7 @@ sub process {
                                 # unary operator, or a cast
                                 } elsif ($op eq '!' || $op eq '~' ||
                                          ($is_unary && ($op eq '*' || $op eq '-' || $op eq '&'))) {
-                                        if ($ctx !~ /[WEB]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
+                                        if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
                                                 ERROR("need space before that '$op' $at\n" . $hereptr);
                                         }
                                         if ($ctx =~ /.xW/) {
@@ -1373,7 +1460,7 @@ sub process {
 
                                 # unary ++ and unary -- are allowed no space on one side.
                                 } elsif ($op eq '++' or $op eq '--') {
-                                        if ($ctx !~ /[WOB]x[^W]/ && $ctx !~ /[^W]x[WOBE]/) {
+                                        if ($ctx !~ /[WOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) {
                                                 ERROR("need space one side of that '$op' $at\n" . $hereptr);
                                         }
                                         if ($ctx =~ /WxB/ || ($ctx =~ /Wx./ && $cc =~ /^;/)) {
@@ -1387,13 +1474,13 @@ sub process {
                                          $op eq '*' or $op eq '/' or
                                          $op eq '%')
                                 {
-                                        if ($ctx !~ /VxV|WxW|VxE|WxE|VxO/) {
+                                        if ($ctx !~ /VxV|WxW|VxE|WxE|VxO|Cx.|.xC/) {
                                                 ERROR("need consistent spacing around '$op' $at\n" .
                                                         $hereptr);
                                         }
 
                                 # All the others need spaces both sides.
-                                } elsif ($ctx !~ /[EW]x[WE]/) {
+                                } elsif ($ctx !~ /[EWC]x[CWE]/) {
                                         # Ignore email addresses <foo@bar>
                                         if (!($op eq '<' && $cb =~ /$;\S+\@\S+>/) &&
                                             !($op eq '>' && $cb =~ /<\S+\@\S+$;/)) {
@@ -1551,7 +1638,7 @@ sub process {
 
 # multi-statement macros should be enclosed in a do while loop, grab the
 # first statement and ensure its the whole macro if its not enclosed
-# in a known goot container
+# in a known good container
                 if ($prevline =~ /\#define.*\\/ &&
                    $prevline !~/(?:do\s+{|\(\{|\{)/ &&
                    $line !~ /(?:do\s+{|\(\{|\{)/ &&
@@ -1599,84 +1686,95 @@ sub process {
 # check for redundant bracing round if etc
                 if ($line =~ /(^.*)\bif\b/ && $1 !~ /else\s*$/) {
                         my ($level, $endln, @chunks) =
-                                ctx_statement_full($linenr, $realcnt, 0);
+                                ctx_statement_full($linenr, $realcnt, 1);
                         #print "chunks<$#chunks> linenr<$linenr> endln<$endln> level<$level>\n";
-                        if ($#chunks > 1 && $level == 0) {
+                        #print "APW: <<$chunks[1][0]>><<$chunks[1][1]>>\n";
+                        if ($#chunks > 0 && $level == 0) {
                                 my $allowed = 0;
                                 my $seen = 0;
+                                my $herectx = $here . "\n";;
+                                my $ln = $linenr - 1;
                                 for my $chunk (@chunks) {
                                         my ($cond, $block) = @{$chunk};
 
+                                        $herectx .= "$rawlines[$ln]\n[...]\n";
+                                        $ln += statement_rawlines($block) - 1;
+
                                         substr($block, 0, length($cond)) = '';
 
                                         $seen++ if ($block =~ /^\s*{/);
 
-                                        $block =~ s/(^|\n)./$1/g;
-                                        $block =~ s/^\s*{//;
-                                        $block =~ s/}\s*$//;
-                                        $block =~ s/^\s*//;
-                                        $block =~ s/\s*$//;
-
-                                        my @lines = ($block =~ /\n/g);
-                                        my @statements = ($block =~ /;/g);
-
-                                        #print "cond<$cond> block<$block> lines<" . scalar(@lines) . "> statements<" . scalar(@statements) . "> seen<$seen> allowed<$allowed>\n";
-                                        if (scalar(@lines) != 0) {
+                                        #print "cond<$cond> block<$block> allowed<$allowed>\n";
+                                        if (statement_lines($cond) > 1) {
+                                                #print "APW: ALLOWED: cond<$cond>\n";
                                                 $allowed = 1;
                                         }
                                         if ($block =~/\b(?:if|for|while)\b/) {
+                                                #print "APW: ALLOWED: block<$block>\n";
                                                 $allowed = 1;
                                         }
-                                        if (scalar(@statements) > 1) {
+                                        if (statement_block_size($block) > 1) {
+                                                #print "APW: ALLOWED: lines block<$block>\n";
                                                 $allowed = 1;
                                         }
                                 }
                                 if ($seen && !$allowed) {
-                                        WARN("braces {} are not necessary for any arm of this statement\n" . $herecurr);
-                                        $suppress_ifbraces = $endln;
+                                        WARN("braces {} are not necessary for any arm of this statement\n" . $herectx);
                                 }
+                                # Either way we have looked over this whole
+                                # statement and said what needs to be said.
+                                $suppress_ifbraces = $endln;
                         }
                 }
                 if ($linenr > $suppress_ifbraces &&
                                         $line =~ /\b(if|while|for|else)\b/) {
-                        # Locate the end of the opening statement.
-                        my @control = ctx_statement($linenr, $realcnt, 0);
-                        my $nr = $linenr + (scalar(@control) - 1);
-                        my $cnt = $realcnt - (scalar(@control) - 1);
-
-                        my $off = $realcnt - $cnt;
-                        #print "$off: line<$line>end<" . $lines[$nr - 1] . ">\n";
-
-                        # If this is is a braced statement group check it
-                        if ($lines[$nr - 1] =~ /{\s*$/) {
-                                my ($lvl, @block) = ctx_block_level($nr, $cnt);
-
-                                my $stmt = join("\n", @block);
-                                # Drop the diff line leader.
-                                $stmt =~ s/\n./\n/g;
-                                # Drop the code outside the block.
-                                $stmt =~ s/(^[^{]*){\s*//;
-                                my $before = $1;
-                                $stmt =~ s/\s*}([^}]*$)//;
-                                my $after = $1;
-
-                                #print "block<" . join(' ', @block) . "><" . scalar(@block) . ">\n";
-                                #print "before<$before> stmt<$stmt> after<$after>\n\n";
-
-                                # Count the newlines, if there is only one
-                                # then the block should not have {}'s.
-                                my @lines = ($stmt =~ /\n/g);
-                                my @statements = ($stmt =~ /;/g);
-                                #print "lines<" . scalar(@lines) . ">\n";
-                                #print "statements<" . scalar(@statements) . ">\n";
-                                if ($lvl == 0 && scalar(@lines) == 0 &&
-                                    scalar(@statements) < 2 &&
-                                    $stmt !~ /{/ && $stmt !~ /\bif\b/ &&
-                                    $before !~ /}/ && $after !~ /{/) {
-                                        my $herectx = "$here\n" . join("\n", @control, @block[1 .. $#block]) . "\n";
-                                        shift(@block);
-                                        WARN("braces {} are not necessary for single statement blocks\n" . $herectx);
+                        my ($level, $endln, @chunks) =
+                                ctx_statement_full($linenr, $realcnt, $-[0]);
+
+                        my $allowed = 0;
+
+                        # Check the pre-context.
+                        if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) {
+                                #print "APW: ALLOWED: pre<$1>\n";
+                                $allowed = 1;
+                        }
+                        # Check the condition.
+                        my ($cond, $block) = @{$chunks[0]};
+                        if (defined $cond) {
+                                substr($block, 0, length($cond)) = '';
+                        }
+                        if (statement_lines($cond) > 1) {
+                                #print "APW: ALLOWED: cond<$cond>\n";
+                                $allowed = 1;
+                        }
+                        if ($block =~/\b(?:if|for|while)\b/) {
+                                #print "APW: ALLOWED: block<$block>\n";
+                                $allowed = 1;
+                        }
+                        if (statement_block_size($block) > 1) {
+                                #print "APW: ALLOWED: lines block<$block>\n";
+                                $allowed = 1;
+                        }
+                        # Check the post-context.
+                        if (defined $chunks[1]) {
+                                my ($cond, $block) = @{$chunks[1]};
+                                if (defined $cond) {
+                                        substr($block, 0, length($cond)) = '';
+                                }
+                                if ($block =~ /^\s*\{/) {
+                                        #print "APW: ALLOWED: chunk-1 block<$block>\n";
+                                        $allowed = 1;
+                                }
+                        }
+                        if ($level == 0 && $block =~ /^\s*\{/ && !$allowed) {
+                                my $herectx = $here . "\n";;
+                                my $end = $linenr + statement_rawlines($block) - 1;
+
+                                for (my $ln = $linenr - 1; $ln < $end; $ln++) {
+                                        $herectx .= $rawlines[$ln] . "\n";;
                                 }
+
+                                WARN("braces {} are not necessary for single statement blocks\n" . $herectx);
                         }
                 }
 
@@ -1828,15 +1926,6 @@ sub process {
                 print "are false positives report them to the maintainer, see\n";
                 print "CHECKPATCH in MAINTAINERS.\n";
         }
-        print <<EOL if ($file == 1 && $quiet == 0);
-
-WARNING: Using --file mode. Please do not send patches to linux-kernel
-that change whole existing files if you did not significantly change most
-of the the file for other reasons anyways or just wrote the file newly
-from scratch. Pure code style patches have a significant cost in a
-quickly changing code base like Linux because they cause rejects
-with other changes.
-EOL
 
         return $clean;
 }
diff --git a/sound/isa/sb/sb8_main.c b/sound/isa/sb/sb8_main.c
index 6304c3a89ba0..fe03bb820532 100644
--- a/sound/isa/sb/sb8_main.c
+++ b/sound/isa/sb/sb8_main.c
@@ -277,7 +277,7 @@ static int snd_sb8_capture_prepare(struct snd_pcm_substream *substream)
         } else {
                 snd_sbdsp_command(chip, 256 - runtime->rate_den);
         }
-        if (chip->capture_format != SB_DSP_OUTPUT) {
+        if (chip->capture_format != SB_DSP_INPUT) {
                 count--;
                 snd_sbdsp_command(chip, SB_DSP_BLOCK_SIZE);
                 snd_sbdsp_command(chip, count & 0xff);
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 19f08846d6fc..c8649282c2cf 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -1778,9 +1778,9 @@ static hda_nid_t ad1988_capsrc_nids[3] = {
 static struct hda_input_mux ad1988_6stack_capture_source = {
         .num_items = 5,
         .items = {
-                { "Front Mic", 0x0 },
-                { "Line", 0x1 },
-                { "Mic", 0x4 },
+                { "Front Mic", 0x1 },   /* port-B */
+                { "Line", 0x2 },        /* port-C */
+                { "Mic", 0x4 },         /* port-E */
                 { "CD", 0x5 },
                 { "Mix", 0x9 },
         },
@@ -1789,7 +1789,7 @@ static struct hda_input_mux ad1988_6stack_capture_source = {
 static struct hda_input_mux ad1988_laptop_capture_source = {
         .num_items = 3,
         .items = {
-                { "Mic/Line", 0x0 },
+                { "Mic/Line", 0x1 },    /* port-B */
                 { "CD", 0x5 },
                 { "Mix", 0x9 },
         },
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index f7cd3a804b11..7206b30cbf94 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -1230,6 +1230,11 @@ static struct hda_verb cxt5047_toshiba_init_verbs[] = {
 static struct hda_verb cxt5047_hp_init_verbs[] = {
         /* pin sensing on HP jack */
         {0x13, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | CONEXANT_HP_EVENT},
+        /* 0x13 is actually shared by both HP and speaker;
+         * setting the connection to 0 (=0x19) makes the master volume control
+         * working mysteriouslly...
+         */
+        {0x13, AC_VERB_SET_CONNECT_SEL, 0x0},
         /* Record selector: Ext Mic */
         {0x12, AC_VERB_SET_CONNECT_SEL,0x03},
         {0x19, AC_VERB_SET_AMP_GAIN_MUTE,
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 777f8c01ca7a..33282f9c01c7 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3973,8 +3973,8 @@ static struct snd_kcontrol_new alc260_fujitsu_mixer[] = {
         ALC_PIN_MODE("Mic/Line Jack Mode", 0x12, ALC_PIN_DIR_IN),
         HDA_CODEC_VOLUME("Beep Playback Volume", 0x07, 0x05, HDA_INPUT),
         HDA_CODEC_MUTE("Beep Playback Switch", 0x07, 0x05, HDA_INPUT),
-        HDA_CODEC_VOLUME("Internal Speaker Playback Volume", 0x09, 0x0, HDA_OUTPUT),
-        HDA_BIND_MUTE("Internal Speaker Playback Switch", 0x09, 2, HDA_INPUT),
+        HDA_CODEC_VOLUME("Speaker Playback Volume", 0x09, 0x0, HDA_OUTPUT),
+        HDA_BIND_MUTE("Speaker Playback Switch", 0x09, 2, HDA_INPUT),
         { } /* end */
 };
 
@@ -4005,9 +4005,9 @@ static struct snd_kcontrol_new alc260_acer_mixer[] = {
         HDA_CODEC_VOLUME("Master Playback Volume", 0x08, 0x0, HDA_OUTPUT),
         HDA_BIND_MUTE("Master Playback Switch", 0x08, 2, HDA_INPUT),
         ALC_PIN_MODE("Headphone Jack Mode", 0x0f, ALC_PIN_DIR_INOUT),
-        HDA_CODEC_VOLUME_MONO("Mono Speaker Playback Volume", 0x0a, 1, 0x0,
+        HDA_CODEC_VOLUME_MONO("Speaker Playback Volume", 0x0a, 1, 0x0,
                               HDA_OUTPUT),
-        HDA_BIND_MUTE_MONO("Mono Speaker Playback Switch", 0x0a, 1, 2,
+        HDA_BIND_MUTE_MONO("Speaker Playback Switch", 0x0a, 1, 2,
                            HDA_INPUT),
         HDA_CODEC_VOLUME("CD Playback Volume", 0x07, 0x04, HDA_INPUT),
         HDA_CODEC_MUTE("CD Playback Switch", 0x07, 0x04, HDA_INPUT),
@@ -7639,6 +7639,7 @@ static struct snd_pci_quirk alc883_cfg_tbl[] = {
         SND_PCI_QUIRK(0x17aa, 0x3bfc, "Lenovo NB0763", ALC883_LENOVO_NB0763),
         SND_PCI_QUIRK(0x17aa, 0x3bfd, "Lenovo NB0763", ALC883_LENOVO_NB0763),
         SND_PCI_QUIRK(0x17c0, 0x4071, "MEDION MD2", ALC883_MEDION_MD2),
+        SND_PCI_QUIRK(0x17f2, 0x5000, "Albatron KI690-AM2", ALC883_6ST_DIG),
         SND_PCI_QUIRK(0x1991, 0x5625, "Haier W66", ALC883_HAIER_W66),
         SND_PCI_QUIRK(0x8086, 0xd601, "D102GGC", ALC883_3ST_6ch),
         {}
@@ -8102,7 +8103,7 @@ static struct snd_kcontrol_new alc262_base_mixer[] = {
         HDA_CODEC_MUTE("Front Mic Playback Switch", 0x0b, 0x01, HDA_INPUT),
         HDA_CODEC_VOLUME("Front Mic Boost", 0x19, 0, HDA_INPUT),
         /* HDA_CODEC_VOLUME("PC Beep Playback Volume", 0x0b, 0x05, HDA_INPUT),
-           HDA_CODEC_MUTE("PC Beelp Playback Switch", 0x0b, 0x05, HDA_INPUT), */
+           HDA_CODEC_MUTE("PC Beep Playback Switch", 0x0b, 0x05, HDA_INPUT), */
         HDA_CODEC_VOLUME("Headphone Playback Volume", 0x0D, 0x0, HDA_OUTPUT),
         HDA_CODEC_MUTE("Headphone Playback Switch", 0x15, 0x0, HDA_OUTPUT),
         HDA_CODEC_VOLUME_MONO("Mono Playback Volume", 0x0e, 2, 0x0, HDA_OUTPUT),
@@ -8124,7 +8125,7 @@ static struct snd_kcontrol_new alc262_hippo1_mixer[] = {
         HDA_CODEC_MUTE("Front Mic Playback Switch", 0x0b, 0x01, HDA_INPUT),
         HDA_CODEC_VOLUME("Front Mic Boost", 0x19, 0, HDA_INPUT),
         /* HDA_CODEC_VOLUME("PC Beep Playback Volume", 0x0b, 0x05, HDA_INPUT),
-           HDA_CODEC_MUTE("PC Beelp Playback Switch", 0x0b, 0x05, HDA_INPUT), */
+           HDA_CODEC_MUTE("PC Beep Playback Switch", 0x0b, 0x05, HDA_INPUT), */
         /*HDA_CODEC_VOLUME("Headphone Playback Volume", 0x0D, 0x0, HDA_OUTPUT),*/
         HDA_CODEC_MUTE("Headphone Playback Switch", 0x1b, 0x0, HDA_OUTPUT),
         { } /* end */
@@ -9238,6 +9239,7 @@ static struct snd_pci_quirk alc262_cfg_tbl[] = {
         SND_PCI_QUIRK(0x104d, 0x900e, "Sony ASSAMD", ALC262_SONY_ASSAMD),
         SND_PCI_QUIRK(0x104d, 0x9015, "Sony 0x9015", ALC262_SONY_ASSAMD),
         SND_PCI_QUIRK(0x10cf, 0x1397, "Fujitsu", ALC262_FUJITSU),
+        SND_PCI_QUIRK(0x10cf, 0x142d, "Fujitsu Lifebook E8410", ALC262_FUJITSU),
         SND_PCI_QUIRK(0x144d, 0xc032, "Samsung Q1 Ultra", ALC262_ULTRA),
         SND_PCI_QUIRK(0x17ff, 0x0560, "Benq ED8", ALC262_BENQ_ED8),
         SND_PCI_QUIRK(0x17ff, 0x058d, "Benq T31-16", ALC262_BENQ_T31),
@@ -12993,8 +12995,8 @@ static struct snd_kcontrol_new alc662_lenovo_101e_mixer[] = {
 static struct snd_kcontrol_new alc662_eeepc_p701_mixer[] = {
         HDA_CODEC_MUTE("Speaker Playback Switch", 0x14, 0x0, HDA_OUTPUT),
 
-        HDA_CODEC_VOLUME("LineOut Playback Volume", 0x02, 0x0, HDA_OUTPUT),
-        HDA_CODEC_MUTE("LineOut Playback Switch", 0x1b, 0x0, HDA_OUTPUT),
+        HDA_CODEC_VOLUME("Line-Out Playback Volume", 0x02, 0x0, HDA_OUTPUT),
+        HDA_CODEC_MUTE("Line-Out Playback Switch", 0x1b, 0x0, HDA_OUTPUT),
 
         HDA_CODEC_VOLUME("e-Mic Boost", 0x18, 0, HDA_INPUT),
         HDA_CODEC_VOLUME("e-Mic Playback Volume", 0x0b, 0x0, HDA_INPUT),
@@ -13007,8 +13009,8 @@ static struct snd_kcontrol_new alc662_eeepc_p701_mixer[] = {
 };
 
 static struct snd_kcontrol_new alc662_eeepc_ep20_mixer[] = {
-        HDA_CODEC_VOLUME("LineOut Playback Volume", 0x02, 0x0, HDA_OUTPUT),
-        HDA_CODEC_MUTE("LineOut Playback Switch", 0x14, 0x0, HDA_OUTPUT),
+        HDA_CODEC_VOLUME("Line-Out Playback Volume", 0x02, 0x0, HDA_OUTPUT),
+        HDA_CODEC_MUTE("Line-Out Playback Switch", 0x14, 0x0, HDA_OUTPUT),
         HDA_CODEC_VOLUME("Surround Playback Volume", 0x03, 0x0, HDA_OUTPUT),
         HDA_BIND_MUTE("Surround Playback Switch", 0x03, 2, HDA_INPUT),
         HDA_CODEC_VOLUME_MONO("Center Playback Volume", 0x04, 1, 0x0, HDA_OUTPUT),
diff --git a/sound/pci/ice1712/phase.c b/sound/pci/ice1712/phase.c
index 9ab4a9f383cb..5a158b73dcaa 100644
--- a/sound/pci/ice1712/phase.c
+++ b/sound/pci/ice1712/phase.c
@@ -51,7 +51,7 @@
 struct phase28_spec {
         unsigned short master[2];
         unsigned short vol[8];
-} phase28;
+};
 
 /* WM8770 registers */
 #define WM_DAC_ATTEN            0x00    /* DAC1-8 analog attenuation */
diff --git a/sound/pci/ice1712/revo.c b/sound/pci/ice1712/revo.c
index ddd5fc8d4fe1..301bf929acd9 100644
--- a/sound/pci/ice1712/revo.c
+++ b/sound/pci/ice1712/revo.c
@@ -36,7 +36,7 @@
 struct revo51_spec {
         struct snd_i2c_device *dev;
         struct snd_pt2258 *pt2258;
-} revo51;
+};
 
 static void revo_i2s_mclk_changed(struct snd_ice1712 *ice)
 {
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 061072c7db03..c52abd0bf22e 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -1708,6 +1708,12 @@ static struct ac97_pcm ac97_pcm_defs[] __devinitdata = {
 };
 
 static struct ac97_quirk ac97_quirks[] __devinitdata = {
+        {
+                .subvendor = 0x0e11,
+                .subdevice = 0x000e,
+                .name = "Compaq Deskpro EN",    /* AD1885 */
+                .type = AC97_TUNE_HP_ONLY
+        },
         {
                 .subvendor = 0x0e11,
                 .subdevice = 0x008a,
@@ -1740,6 +1746,12 @@ static struct ac97_quirk ac97_quirks[] __devinitdata = {
         },
         {
                 .subvendor = 0x1025,
+                .subdevice = 0x0082,
+                .name = "Acer Travelmate 2310",
+                .type = AC97_TUNE_HP_ONLY
+        },
+        {
+                .subvendor = 0x1025,
                 .subdevice = 0x0083,
                 .name = "Acer Aspire 3003LCi",
                 .type = AC97_TUNE_HP_ONLY
diff --git a/sound/pci/oxygen/hifier.c b/sound/pci/oxygen/hifier.c
index 3ea1f05228a1..666f69a3312e 100644
--- a/sound/pci/oxygen/hifier.c
+++ b/sound/pci/oxygen/hifier.c
@@ -150,6 +150,7 @@ static const struct oxygen_model model_hifier = {
         .shortname = "C-Media CMI8787",
         .longname = "C-Media Oxygen HD Audio",
         .chip = "CMI8788",
+        .owner = THIS_MODULE,
         .init = hifier_init,
         .control_filter = hifier_control_filter,
         .mixer_init = hifier_mixer_init,
diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c
index 40e92f5cd69c..d163397b85cc 100644
--- a/sound/pci/oxygen/virtuoso.c
+++ b/sound/pci/oxygen/virtuoso.c
@@ -389,6 +389,7 @@ static const struct oxygen_model model_xonar = {
         .shortname = "Asus AV200",
         .longname = "Asus Virtuoso 200",
         .chip = "AV200",
+        .owner = THIS_MODULE,
         .init = xonar_init,
         .control_filter = xonar_control_filter,
         .mixer_init = xonar_mixer_init,
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 710e0287ef8c..569ecaca0e8b 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -681,8 +681,8 @@ static const struct aic3x_rate_divs aic3x_divs[] = {
         {22579200, 48000, 48000, 0x0, 8, 7075},
         {33868800, 48000, 48000, 0x0, 5, 8049},
         /* 64k */
-        {22579200, 96000, 96000, 0x1, 8, 7075},
-        {33868800, 96000, 96000, 0x1, 5, 8049},
+        {22579200, 64000, 96000, 0x1, 8, 7075},
+        {33868800, 64000, 96000, 0x1, 5, 8049},
         /* 88.2k */
         {22579200, 88200, 88200, 0x0, 8, 0},
         {33868800, 88200, 88200, 0x0, 5, 3333},
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 590baea3c4c3..524f7450804f 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -176,7 +176,8 @@ static int wm9712_add_controls(struct snd_soc_codec *codec)
  * the codec only has a single control that is shared by both channels.
  * This makes it impossible to determine the audio path.
  */
-static int mixer_event (struct snd_soc_dapm_widget *w, int event)
+static int mixer_event(struct snd_soc_dapm_widget *w,
+        struct snd_kcontrol *k, int event)
 {
         u16 l, r, beep, line, phone, mic, pcm, aux;
 
diff --git a/sound/soc/pxa/corgi.c b/sound/soc/pxa/corgi.c
index 3f34e531bebf..1a70a6ac98ce 100644
--- a/sound/soc/pxa/corgi.c
+++ b/sound/soc/pxa/corgi.c
@@ -215,7 +215,8 @@ static int corgi_set_spk(struct snd_kcontrol *kcontrol,
         return 1;
 }
 
-static int corgi_amp_event(struct snd_soc_dapm_widget *w, int event)
+static int corgi_amp_event(struct snd_soc_dapm_widget *w,
+        struct snd_kcontrol *k, int event)
 {
         if (SND_SOC_DAPM_EVENT_ON(event))
                 set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON);
@@ -225,7 +226,8 @@ static int corgi_amp_event(struct snd_soc_dapm_widget *w, int event)
         return 0;
 }
 
-static int corgi_mic_event(struct snd_soc_dapm_widget *w, int event)
+static int corgi_mic_event(struct snd_soc_dapm_widget *w,
+        struct snd_kcontrol *k, int event)
 {
         if (SND_SOC_DAPM_EVENT_ON(event))
                 set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS);
diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c
index 5ae59bd309a3..4fbf8bba9627 100644
--- a/sound/soc/pxa/poodle.c
+++ b/sound/soc/pxa/poodle.c
@@ -196,7 +196,8 @@ static int poodle_set_spk(struct snd_kcontrol *kcontrol,
         return 1;
 }
 
-static int poodle_amp_event(struct snd_soc_dapm_widget *w, int event)
+static int poodle_amp_event(struct snd_soc_dapm_widget *w,
+        struct snd_kcontrol *k, int event)
 {
         if (SND_SOC_DAPM_EVENT_ON(event))
                 locomo_gpio_write(&poodle_locomo_device.dev,
diff --git a/sound/soc/pxa/spitz.c b/sound/soc/pxa/spitz.c
index d56709e15435..ecca39033fcc 100644
--- a/sound/soc/pxa/spitz.c
+++ b/sound/soc/pxa/spitz.c
@@ -215,7 +215,8 @@ static int spitz_set_spk(struct snd_kcontrol *kcontrol,
         return 1;
 }
 
-static int spitz_mic_bias(struct snd_soc_dapm_widget *w, int event)
+static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
+        struct snd_kcontrol *k, int event)
 {
         if (machine_is_borzoi() || machine_is_spitz()) {
                 if (SND_SOC_DAPM_EVENT_ON(event))
diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
index e4d40b528ca4..7346d7e5d066 100644
--- a/sound/soc/pxa/tosa.c
+++ b/sound/soc/pxa/tosa.c
@@ -135,7 +135,8 @@ static int tosa_set_spk(struct snd_kcontrol *kcontrol,
 }
 
 /* tosa dapm event handlers */
-static int tosa_hp_event(struct snd_soc_dapm_widget *w, int event)
+static int tosa_hp_event(struct snd_soc_dapm_widget *w,
+        struct snd_kcontrol *k, int event)
 {
         if (SND_SOC_DAPM_EVENT_ON(event))
                 set_tc6393_gpio(&tc6393_device.dev,TOSA_TC6393_L_MUTE);
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 8fa935665702..675672f313be 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -479,6 +479,33 @@ static int retire_playback_sync_urb_hs(struct snd_usb_substream *subs,
         return 0;
 }
 
+/*
+ * process after E-Mu 0202/0404 high speed playback sync complete
+ *
+ * These devices return the number of samples per packet instead of the number
+ * of samples per microframe.
+ */
+static int retire_playback_sync_urb_hs_emu(struct snd_usb_substream *subs,
+                                           struct snd_pcm_runtime *runtime,
+                                           struct urb *urb)
+{
+        unsigned int f;
+        unsigned long flags;
+
+        if (urb->iso_frame_desc[0].status == 0 &&
+            urb->iso_frame_desc[0].actual_length == 4) {
+                f = combine_quad((u8*)urb->transfer_buffer) & 0x0fffffff;
+                f >>= subs->datainterval;
+                if (f >= subs->freqn - subs->freqn / 8 && f <= subs->freqmax) {
+                        spin_lock_irqsave(&subs->lock, flags);
+                        subs->freqm = f;
+                        spin_unlock_irqrestore(&subs->lock, flags);
+                }
+        }
+
+        return 0;
+}
+
 /* determine the number of frames in the next packet */
 static int snd_usb_audio_next_packet_size(struct snd_usb_substream *subs)
 {
@@ -2219,10 +2246,17 @@ static void init_substream(struct snd_usb_stream *as, int stream, struct audiofo
         subs->stream = as;
         subs->direction = stream;
         subs->dev = as->chip->dev;
-        if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL)
+        if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) {
                 subs->ops = audio_urb_ops[stream];
-        else
+        } else {
                 subs->ops = audio_urb_ops_high_speed[stream];
+                switch (as->chip->usb_id) {
+                case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
+                case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
+                        subs->ops.retire_sync = retire_playback_sync_urb_hs_emu;
+                        break;
+                }
+        }
         snd_pcm_set_ops(as->pcm, stream,
                         stream == SNDRV_PCM_STREAM_PLAYBACK ?
                         &snd_usb_playback_ops : &snd_usb_capture_ops);
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 317f8e211cd2..4232fd75dd20 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -211,6 +211,10 @@ static void ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
         case IOAPIC_LOWEST_PRIORITY:
                 vcpu = kvm_get_lowest_prio_vcpu(ioapic->kvm, vector,
                                 deliver_bitmask);
+#ifdef CONFIG_X86
+                if (irq == 0)
+                        vcpu = ioapic->kvm->vcpus[0];
+#endif
                 if (vcpu != NULL)
                         ioapic_inj_irq(ioapic, vcpu, vector,
                                        trig_mode, delivery_mode);
@@ -220,6 +224,10 @@ static void ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
                                      deliver_bitmask, vector, IOAPIC_LOWEST_PRIORITY);
                 break;
         case IOAPIC_FIXED:
+#ifdef CONFIG_X86
+                if (irq == 0)
+                        deliver_bitmask = 1;
+#endif
                 for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) {
                         if (!(deliver_bitmask & (1 << vcpu_id)))
                                 continue;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 32fbf8006969..b2e12893e3f4 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -169,6 +169,7 @@ static struct kvm *kvm_create_vm(void)
         kvm_io_bus_init(&kvm->pio_bus);
         mutex_init(&kvm->lock);
         kvm_io_bus_init(&kvm->mmio_bus);
+        init_rwsem(&kvm->slots_lock);
         spin_lock(&kvm_lock);
         list_add(&kvm->vm_list, &vm_list);
         spin_unlock(&kvm_lock);
@@ -339,9 +340,9 @@ int kvm_set_memory_region(struct kvm *kvm,
 {
         int r;
 
-        down_write(&current->mm->mmap_sem);
+        down_write(&kvm->slots_lock);
         r = __kvm_set_memory_region(kvm, mem, user_alloc);
-        up_write(&current->mm->mmap_sem);
+        up_write(&kvm->slots_lock);
         return r;
 }
 EXPORT_SYMBOL_GPL(kvm_set_memory_region);