Merge branch 'linus' into tracing/blktrace

Conflicts:
	block/blktrace.c

Semantic merge:
	kernel/trace/blktrace.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>

181 files changed, 1995 insertions, 817 deletions

diff --git a/CREDITS b/CREDITS
index 2b39168c06aa..5e0736722afd 100644
--- a/CREDITS
+++ b/CREDITS
@@ -2166,7 +2166,6 @@ D: Initial implementation of VC's, pty's and select()
 
 N: Pavel Machek
 E: pavel@ucw.cz
-E: pavel@suse.cz
 D: Softcursor for vga, hypertech cdrom support, vcsa bugfix, nbd
 D: sun4/330 port, capabilities for elf, speedup for rm on ext2, USB,
 D: work on suspend-to-ram/disk, killing duplicates from ioctl32
diff --git a/Documentation/ABI/testing/sysfs-firmware-memmap b/Documentation/ABI/testing/sysfs-firmware-memmap
index 0d99ee6ae02e..eca0d65087dc 100644
--- a/Documentation/ABI/testing/sysfs-firmware-memmap
+++ b/Documentation/ABI/testing/sysfs-firmware-memmap
@@ -1,6 +1,6 @@
 What:           /sys/firmware/memmap/
 Date:           June 2008
-Contact:        Bernhard Walle <bwalle@suse.de>
+Contact:        Bernhard Walle <bernhard.walle@gmx.de>
 Description:
                 On all platforms, the firmware provides a memory map which the
                 kernel reads. The resources from that memory map are registered
diff --git a/Documentation/PCI/PCIEBUS-HOWTO.txt b/Documentation/PCI/PCIEBUS-HOWTO.txt
index 9a07e38631b0..6bd5f372adec 100644
--- a/Documentation/PCI/PCIEBUS-HOWTO.txt
+++ b/Documentation/PCI/PCIEBUS-HOWTO.txt
@@ -93,7 +93,7 @@ the PCI Express Port Bus driver from loading a service driver.
 
 int pcie_port_service_register(struct pcie_port_service_driver *new)
 
-This API replaces the Linux Driver Model's pci_module_init API. A
+This API replaces the Linux Driver Model's pci_register_driver API. A
 service driver should always calls pcie_port_service_register at
 module init. Note that after service driver being loaded, calls
 such as pci_enable_device(dev) and pci_set_master(dev) are no longer
diff --git a/Documentation/cgroups/cgroups.txt b/Documentation/cgroups/cgroups.txt
index d9e5d6f41b92..93feb8444489 100644
--- a/Documentation/cgroups/cgroups.txt
+++ b/Documentation/cgroups/cgroups.txt
@@ -252,10 +252,8 @@ cgroup file system directories.
 When a task is moved from one cgroup to another, it gets a new
 css_set pointer - if there's an already existing css_set with the
 desired collection of cgroups then that group is reused, else a new
-css_set is allocated. Note that the current implementation uses a
-linear search to locate an appropriate existing css_set, so isn't
-very efficient. A future version will use a hash table for better
-performance.
+css_set is allocated. The appropriate existing css_set is located by
+looking into a hash table.
 
 To allow access from a cgroup to the css_sets (and hence tasks)
 that comprise it, a set of cg_cgroup_link objects form a lattice;
diff --git a/Documentation/hwmon/hpfall.c b/Documentation/hwmon/hpfall.c
new file mode 100644
index 000000000000..bbea1ccfd46a
--- /dev/null
+++ b/Documentation/hwmon/hpfall.c
@@ -0,0 +1,101 @@
+/* Disk protection for HP machines.
+ *
+ * Copyright 2008 Eric Piel
+ * Copyright 2009 Pavel Machek <pavel@suse.cz>
+ *
+ * GPLv2.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <string.h>
+#include <stdint.h>
+#include <errno.h>
+#include <signal.h>
+
+void write_int(char *path, int i)
+{
+        char buf[1024];
+        int fd = open(path, O_RDWR);
+        if (fd < 0) {
+                perror("open");
+                exit(1);
+        }
+        sprintf(buf, "%d", i);
+        if (write(fd, buf, strlen(buf)) != strlen(buf)) {
+                perror("write");
+                exit(1);
+        }
+        close(fd);
+}
+
+void set_led(int on)
+{
+        write_int("/sys/class/leds/hp::hddprotect/brightness", on);
+}
+
+void protect(int seconds)
+{
+        write_int("/sys/block/sda/device/unload_heads", seconds*1000);
+}
+
+int on_ac(void)
+{
+//      /sys/class/power_supply/AC0/online
+}
+
+int lid_open(void)
+{
+//      /proc/acpi/button/lid/LID/state
+}
+
+void ignore_me(void)
+{
+        protect(0);
+        set_led(0);
+
+}
+
+int main(int argc, char* argv[])
+{
+       int fd, ret;
+
+       fd = open("/dev/freefall", O_RDONLY);
+       if (fd < 0) {
+               perror("open");
+               return EXIT_FAILURE;
+       }
+
+        signal(SIGALRM, ignore_me);
+
+       for (;;) {
+               unsigned char count;
+
+               ret = read(fd, &count, sizeof(count));
+               alarm(0);
+               if ((ret == -1) && (errno == EINTR)) {
+                       /* Alarm expired, time to unpark the heads */
+                       continue;
+               }
+
+               if (ret != sizeof(count)) {
+                       perror("read");
+                       break;
+               }
+
+               protect(21);
+               set_led(1);
+               if (1 || on_ac() || lid_open()) {
+                       alarm(2);
+               } else {
+                       alarm(20);
+               }
+       }
+
+       close(fd);
+       return EXIT_SUCCESS;
+}
diff --git a/Documentation/hwmon/lis3lv02d b/Documentation/hwmon/lis3lv02d
index 0fcfc4a7ccdc..287f8c902656 100644
--- a/Documentation/hwmon/lis3lv02d
+++ b/Documentation/hwmon/lis3lv02d
@@ -33,6 +33,14 @@ rate - reports the sampling rate of the accelerometer device in HZ
 This driver also provides an absolute input class device, allowing
 the laptop to act as a pinball machine-esque joystick.
 
+Another feature of the driver is misc device called "freefall" that
+acts similar to /dev/rtc and reacts on free-fall interrupts received
+from the device. It supports blocking operations, poll/select and
+fasync operation modes. You must read 1 bytes from the device.  The
+result is number of free-fall interrupts since the last successful
+read (or 255 if number of interrupts would not fit).
+
+
 Axes orientation
 ----------------
 
diff --git a/MAINTAINERS b/MAINTAINERS
index b7e4afc4bc44..4c2e406fab61 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1905,10 +1905,10 @@ W:	http://gigaset307x.sourceforge.net/
 S:      Maintained
 
 HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
-P:      Robert Love
-M:      rlove@rlove.org
-M:      linux-kernel@vger.kernel.org
-W:      http://www.kernel.org/pub/linux/kernel/people/rml/hdaps/
+P:      Frank Seidel
+M:      frank@f-seidel.de
+L:      lm-sensors@lm-sensors.org
+W:      http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/
 S:      Maintained
 
 GSPCA FINEPIX SUBDRIVER
@@ -2001,7 +2001,7 @@ S:	Maintained
 
 HIBERNATION (aka Software Suspend, aka swsusp)
 P:      Pavel Machek
-M:      pavel@suse.cz
+M:      pavel@ucw.cz
 P:      Rafael J. Wysocki
 M:      rjw@sisk.pl
 L:      linux-pm@lists.linux-foundation.org
@@ -4178,7 +4178,7 @@ SUSPEND TO RAM
 P:      Len Brown
 M:      len.brown@intel.com
 P:      Pavel Machek
-M:      pavel@suse.cz
+M:      pavel@ucw.cz
 P:      Rafael J. Wysocki
 M:      rjw@sisk.pl
 L:      linux-pm@lists.linux-foundation.org
@@ -4930,11 +4930,11 @@ L:	zd1211-devs@lists.sourceforge.net (subscribers-only)
 S:      Maintained
 
 ZR36067 VIDEO FOR LINUX DRIVER
-P:      Ronald Bultje
-M:      rbultje@ronald.bitfreak.net
 L:      mjpeg-users@lists.sourceforge.net
+L:      linux-media@vger.kernel.org
 W:      http://mjpeg.sourceforge.net/driver-zoran/
-S:      Maintained
+T:      Mercurial http://linuxtv.org/hg/v4l-dvb
+S:      Odd Fixes
 
 ZS DECSTATION Z85C30 SERIAL DRIVER
 P:      Maciej W. Rozycki
diff --git a/Makefile b/Makefile
index 22d758495ad2..59cf6dacec07 100644
--- a/Makefile
+++ b/Makefile
@@ -389,6 +389,7 @@ PHONY += outputmakefile
 # output directory.
 outputmakefile:
 ifneq ($(KBUILD_SRC),)
+        $(Q)ln -fsn $(srctree) source
         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
             $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 endif
@@ -946,7 +947,6 @@ ifneq ($(KBUILD_SRC),)
             mkdir -p include2;                                          \
             ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm;     \
         fi
-        ln -fsn $(srctree) source
 endif
 
 # prepare2 creates a makefile if using a separate output directory
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index f238370c907d..8d0097f10208 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -93,8 +93,8 @@ common_shutdown_1(void *generic_ptr)
         if (cpuid != boot_cpuid) {
                 flags |= 0x00040000UL; /* "remain halted" */
                 *pflags = flags;
-                cpu_clear(cpuid, cpu_present_map);
-                cpu_clear(cpuid, cpu_possible_map);
+                set_cpu_present(cpuid, false);
+                set_cpu_possible(cpuid, false);
                 halt();
         }
 #endif
@@ -120,8 +120,8 @@ common_shutdown_1(void *generic_ptr)
 
 #ifdef CONFIG_SMP
         /* Wait for the secondaries to halt. */
-        cpu_clear(boot_cpuid, cpu_present_map);
-        cpu_clear(boot_cpuid, cpu_possible_map);
+        set_cpu_present(boot_cpuid, false);
+        set_cpu_possible(boot_cpuid, false);
         while (cpus_weight(cpu_present_map))
                 barrier();
 #endif
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 00f1dc3dfd5f..b1fe5674c3a1 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -120,12 +120,12 @@ void __cpuinit
 smp_callin(void)
 {
         int cpuid = hard_smp_processor_id();
-        cpumask_t mask = cpu_online_map;
 
-        if (cpu_test_and_set(cpuid, mask)) {
+        if (cpu_online(cpuid)) {
                 printk("??, cpu 0x%x already present??\n", cpuid);
                 BUG();
         }
+        set_cpu_online(cpuid, true);
 
         /* Turn on machine checks.  */
         wrmces(7);
@@ -436,8 +436,8 @@ setup_smp(void)
                                 ((char *)cpubase + i*hwrpb->processor_size);
                         if ((cpu->flags & 0x1cc) == 0x1cc) {
                                 smp_num_probed++;
-                                cpu_set(i, cpu_possible_map);
-                                cpu_set(i, cpu_present_map);
+                                set_cpu_possible(i, true);
+                                set_cpu_present(i, true);
                                 cpu->pal_revision = boot_cpu_palrev;
                         }
 
@@ -470,8 +470,8 @@ smp_prepare_cpus(unsigned int max_cpus)
 
         /* Nothing to do on a UP box, or when told not to.  */
         if (smp_num_probed == 1 || max_cpus == 0) {
-                cpu_possible_map = cpumask_of_cpu(boot_cpuid);
-                cpu_present_map = cpumask_of_cpu(boot_cpuid);
+                init_cpu_possible(cpumask_of(boot_cpuid));
+                init_cpu_present(cpumask_of(boot_cpuid));
                 printk(KERN_INFO "SMP mode deactivated.\n");
                 return;
         }
diff --git a/arch/ia64/include/asm/kvm.h b/arch/ia64/include/asm/kvm.h
index 68aa6da807c1..bfa86b6af7cd 100644
--- a/arch/ia64/include/asm/kvm.h
+++ b/arch/ia64/include/asm/kvm.h
@@ -25,6 +25,10 @@
 
 #include <linux/ioctl.h>
 
+/* Select x86 specific features in <linux/kvm.h> */
+#define __KVM_HAVE_IOAPIC
+#define __KVM_HAVE_DEVICE_ASSIGNMENT
+
 /* Architectural interrupt line count. */
 #define KVM_NR_INTERRUPTS 256
 
diff --git a/arch/ia64/include/asm/mmzone.h b/arch/ia64/include/asm/mmzone.h
index 34efe88eb849..f2ca32069b3f 100644
--- a/arch/ia64/include/asm/mmzone.h
+++ b/arch/ia64/include/asm/mmzone.h
@@ -31,10 +31,6 @@ static inline int pfn_to_nid(unsigned long pfn)
 #endif
 }
 
-#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
-extern int early_pfn_to_nid(unsigned long pfn);
-#endif
-
 #ifdef CONFIG_IA64_DIG /* DIG systems are small */
 # define MAX_PHYSNODE_ID        8
 # define NR_NODE_MEMBLKS        (MAX_NUMNODES * 8)
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 4e586f6110aa..28f982045f29 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1337,6 +1337,10 @@ static void kvm_release_vm_pages(struct kvm *kvm)
         }
 }
 
+void kvm_arch_sync_events(struct kvm *kvm)
+{
+}
+
 void kvm_arch_destroy_vm(struct kvm *kvm)
 {
         kvm_iommu_unmap_guest(kvm);
diff --git a/arch/ia64/kvm/process.c b/arch/ia64/kvm/process.c
index 552d07724207..230eae482f32 100644
--- a/arch/ia64/kvm/process.c
+++ b/arch/ia64/kvm/process.c
@@ -455,13 +455,18 @@ fpswa_ret_t vmm_fp_emulate(int fp_fault, void *bundle, unsigned long *ipsr,
         if (!vmm_fpswa_interface)
                 return (fpswa_ret_t) {-1, 0, 0, 0};
 
-        /*
-         * Just let fpswa driver to use hardware fp registers.
-         * No fp register is valid in memory.
-         */
         memset(&fp_state, 0, sizeof(fp_state_t));
 
         /*
+         * compute fp_state.  only FP registers f6 - f11 are used by the
+         * vmm, so set those bits in the mask and set the low volatile
+         * pointer to point to these registers.
+         */
+        fp_state.bitmask_low64 = 0xfc0;  /* bit6..bit11 */
+
+        fp_state.fp_state_low_volatile = (fp_state_low_volatile_t *) &regs->f6;
+
+   /*
          * unsigned long (*EFI_FPSWA) (
          *      unsigned long    trap_type,
          *      void             *Bundle,
@@ -545,10 +550,6 @@ void reflect_interruption(u64 ifa, u64 isr, u64 iim,
                 status = vmm_handle_fpu_swa(0, regs, isr);
                 if (!status)
                         return ;
-                else if (-EAGAIN == status) {
-                        vcpu_decrement_iip(vcpu);
-                        return ;
-                }
                 break;
         }
 
diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c
index b73bf1838e57..3efea7d0a351 100644
--- a/arch/ia64/mm/numa.c
+++ b/arch/ia64/mm/numa.c
@@ -58,7 +58,7 @@ paddr_to_nid(unsigned long paddr)
  * SPARSEMEM to allocate the SPARSEMEM sectionmap on the NUMA node where
  * the section resides.
  */
-int early_pfn_to_nid(unsigned long pfn)
+int __meminit __early_pfn_to_nid(unsigned long pfn)
 {
         int i, section = pfn >> PFN_SECTION_SHIFT, ssec, esec;
 
@@ -70,7 +70,7 @@ int early_pfn_to_nid(unsigned long pfn)
                         return node_memblk[i].nid;
         }
 
-        return 0;
+        return -1;
 }
 
 #ifdef CONFIG_MEMORY_HOTPLUG
diff --git a/arch/powerpc/include/asm/pgtable-4k.h b/arch/powerpc/include/asm/pgtable-4k.h
index 6b18ba9d2d85..1dbca4e7de67 100644
--- a/arch/powerpc/include/asm/pgtable-4k.h
+++ b/arch/powerpc/include/asm/pgtable-4k.h
@@ -60,7 +60,7 @@
 /* It should be preserving the high 48 bits and then specifically */
 /* preserving _PAGE_SECONDARY | _PAGE_GROUP_IX */
 #define _PAGE_CHG_MASK  (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | \
-                         _PAGE_HPTEFLAGS)
+                         _PAGE_HPTEFLAGS | _PAGE_SPECIAL)
 
 /* Bits to mask out from a PMD to get to the PTE page */
 #define PMD_MASKED_BITS         0
diff --git a/arch/powerpc/include/asm/pgtable-64k.h b/arch/powerpc/include/asm/pgtable-64k.h
index 07b0d8f09cb6..7389003349a6 100644
--- a/arch/powerpc/include/asm/pgtable-64k.h
+++ b/arch/powerpc/include/asm/pgtable-64k.h
@@ -114,7 +114,7 @@ static inline struct subpage_prot_table *pgd_subpage_prot(pgd_t *pgd)
  * pgprot changes
  */
 #define _PAGE_CHG_MASK  (PTE_RPN_MASK | _PAGE_HPTEFLAGS | _PAGE_DIRTY | \
-                         _PAGE_ACCESSED)
+                         _PAGE_ACCESSED | _PAGE_SPECIAL)
 
 /* Bits to mask out from a PMD to get to the PTE page */
 #define PMD_MASKED_BITS         0x1ff
diff --git a/arch/powerpc/include/asm/pgtable-ppc32.h b/arch/powerpc/include/asm/pgtable-ppc32.h
index f69a4d977729..820b5f0a35ce 100644
--- a/arch/powerpc/include/asm/pgtable-ppc32.h
+++ b/arch/powerpc/include/asm/pgtable-ppc32.h
@@ -429,7 +429,8 @@ extern int icache_44x_need_flush;
 #define PMD_PAGE_SIZE(pmd)      bad_call_to_PMD_PAGE_SIZE()
 #endif
 
-#define _PAGE_CHG_MASK  (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
+#define _PAGE_CHG_MASK  (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | \
+                         _PAGE_SPECIAL)
 
 
 #define PAGE_PROT_BITS  (_PAGE_GUARDED | _PAGE_COHERENT | _PAGE_NO_CACHE | \
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index 5af4e9b2dbe2..ada06924a423 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -646,11 +646,16 @@ static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
                        unsigned int areg, struct pt_regs *regs,
                        unsigned int flags, unsigned int length)
 {
-        char *ptr = (char *) &current->thread.TS_FPR(reg);
+        char *ptr;
         int ret = 0;
 
         flush_vsx_to_thread(current);
 
+        if (reg < 32)
+                ptr = (char *) &current->thread.TS_FPR(reg);
+        else
+                ptr = (char *) &current->thread.vr[reg - 32];
+
         if (flags & ST)
                 ret = __copy_to_user(addr, ptr, length);
         else {
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 2822c8ccfaaf..5f81256287f5 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -125,6 +125,10 @@ static void kvmppc_free_vcpus(struct kvm *kvm)
         }
 }
 
+void kvm_arch_sync_events(struct kvm *kvm)
+{
+}
+
 void kvm_arch_destroy_vm(struct kvm *kvm)
 {
         kvmppc_free_vcpus(kvm);
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 7393bd76d698..5ac08b8ab654 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -19,6 +19,7 @@
 #include <linux/notifier.h>
 #include <linux/lmb.h>
 #include <linux/of.h>
+#include <linux/pfn.h>
 #include <asm/sparsemem.h>
 #include <asm/prom.h>
 #include <asm/system.h>
@@ -882,7 +883,7 @@ static void mark_reserved_regions_for_nid(int nid)
                 unsigned long physbase = lmb.reserved.region[i].base;
                 unsigned long size = lmb.reserved.region[i].size;
                 unsigned long start_pfn = physbase >> PAGE_SHIFT;
-                unsigned long end_pfn = ((physbase + size) >> PAGE_SHIFT);
+                unsigned long end_pfn = PFN_UP(physbase + size);
                 struct node_active_region node_ar;
                 unsigned long node_end_pfn = node->node_start_pfn +
                                              node->node_spanned_pages;
@@ -908,7 +909,7 @@ static void mark_reserved_regions_for_nid(int nid)
                          */
                         if (end_pfn > node_ar.end_pfn)
                                 reserve_size = (node_ar.end_pfn << PAGE_SHIFT)
-                                        - (start_pfn << PAGE_SHIFT);
+                                        - physbase;
                         /*
                          * Only worry about *this* node, others may not
                          * yet have valid NODE_DATA().
diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
index 67de6bf3db3d..d281cc0bca71 100644
--- a/arch/powerpc/platforms/ps3/mm.c
+++ b/arch/powerpc/platforms/ps3/mm.c
@@ -328,7 +328,7 @@ static int __init ps3_mm_add_memory(void)
         return result;
 }
 
-core_initcall(ps3_mm_add_memory);
+device_initcall(ps3_mm_add_memory);
 
 /*============================================================================*/
 /* dma routines                                                               */
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index be8497186b96..0d33893e1e89 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -212,6 +212,10 @@ static void kvm_free_vcpus(struct kvm *kvm)
         }
 }
 
+void kvm_arch_sync_events(struct kvm *kvm)
+{
+}
+
 void kvm_arch_destroy_vm(struct kvm *kvm)
 {
         kvm_free_vcpus(kvm);
diff --git a/arch/x86/include/asm/kvm.h b/arch/x86/include/asm/kvm.h
index d2e3bf3608af..886c9402ec45 100644
--- a/arch/x86/include/asm/kvm.h
+++ b/arch/x86/include/asm/kvm.h
@@ -9,6 +9,13 @@
 #include <linux/types.h>
 #include <linux/ioctl.h>
 
+/* Select x86 specific features in <linux/kvm.h> */
+#define __KVM_HAVE_PIT
+#define __KVM_HAVE_IOAPIC
+#define __KVM_HAVE_DEVICE_ASSIGNMENT
+#define __KVM_HAVE_MSI
+#define __KVM_HAVE_USER_NMI
+
 /* Architectural interrupt line count. */
 #define KVM_NR_INTERRUPTS 256
 
diff --git a/arch/x86/include/asm/mmzone_32.h b/arch/x86/include/asm/mmzone_32.h
index 07f1af494ca5..105fb90a0635 100644
--- a/arch/x86/include/asm/mmzone_32.h
+++ b/arch/x86/include/asm/mmzone_32.h
@@ -32,8 +32,6 @@ static inline void get_memcfg_numa(void)
         get_memcfg_numa_flat();
 }
 
-extern int early_pfn_to_nid(unsigned long pfn);
-
 extern void resume_map_numa_kva(pgd_t *pgd);
 
 #else /* !CONFIG_NUMA */
diff --git a/arch/x86/include/asm/mmzone_64.h b/arch/x86/include/asm/mmzone_64.h
index a5b3817d4b9e..a29f48c2a322 100644
--- a/arch/x86/include/asm/mmzone_64.h
+++ b/arch/x86/include/asm/mmzone_64.h
@@ -40,8 +40,6 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
 #define node_end_pfn(nid)       (NODE_DATA(nid)->node_start_pfn +       \
                                  NODE_DATA(nid)->node_spanned_pages)
 
-extern int early_pfn_to_nid(unsigned long pfn);
-
 #ifdef CONFIG_NUMA_EMU
 #define FAKE_NODE_MIN_SIZE      (64 * 1024 * 1024)
 #define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL))
diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h
index e9873a2e8695..776579119a00 100644
--- a/arch/x86/include/asm/page.h
+++ b/arch/x86/include/asm/page.h
@@ -57,7 +57,6 @@ typedef struct { pgdval_t pgd; } pgd_t;
 typedef struct { pgprotval_t pgprot; } pgprot_t;
 
 extern int page_is_ram(unsigned long pagenr);
-extern int pagerange_is_ram(unsigned long start, unsigned long end);
 extern int devmem_is_allowed(unsigned long pagenr);
 extern void map_devmem(unsigned long pfn, unsigned long size,
                        pgprot_t vma_prot);
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index c09a14127584..e299287e8e33 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -1352,14 +1352,7 @@ static inline void arch_leave_lazy_cpu_mode(void)
         PVOP_VCALL0(pv_cpu_ops.lazy_mode.leave);
 }
 
-static inline void arch_flush_lazy_cpu_mode(void)
-{
-        if (unlikely(paravirt_get_lazy_mode() == PARAVIRT_LAZY_CPU)) {
-                arch_leave_lazy_cpu_mode();
-                arch_enter_lazy_cpu_mode();
-        }
-}
-
+void arch_flush_lazy_cpu_mode(void);
 
 #define  __HAVE_ARCH_ENTER_LAZY_MMU_MODE
 static inline void arch_enter_lazy_mmu_mode(void)
@@ -1372,13 +1365,7 @@ static inline void arch_leave_lazy_mmu_mode(void)
         PVOP_VCALL0(pv_mmu_ops.lazy_mode.leave);
 }
 
-static inline void arch_flush_lazy_mmu_mode(void)
-{
-        if (unlikely(paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU)) {
-                arch_leave_lazy_mmu_mode();
-                arch_enter_lazy_mmu_mode();
-        }
-}
+void arch_flush_lazy_mmu_mode(void);
 
 static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
                                 unsigned long phys, pgprot_t flags)
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index fb039cd345d8..6428aa17b40e 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -1157,8 +1157,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
         data->cpu = pol->cpu;
         data->currpstate = HW_PSTATE_INVALID;
 
-        rc = powernow_k8_cpu_init_acpi(data);
-        if (rc) {
+        if (powernow_k8_cpu_init_acpi(data)) {
                 /*
                  * Use the PSB BIOS structure. This is only availabe on
                  * an UP version, and is deprecated by AMD.
@@ -1176,17 +1175,20 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
                                "ACPI maintainers and complain to your BIOS "
                                "vendor.\n");
 #endif
-                        goto err_out;
+                        kfree(data);
+                        return -ENODEV;
                 }
                 if (pol->cpu != 0) {
                         printk(KERN_ERR FW_BUG PFX "No ACPI _PSS objects for "
                                "CPU other than CPU0. Complain to your BIOS "
                                "vendor.\n");
-                        goto err_out;
+                        kfree(data);
+                        return -ENODEV;
                 }
                 rc = find_psb_table(data);
                 if (rc) {
-                        goto err_out;
+                        kfree(data);
+                        return -ENODEV;
                 }
                 /* Take a crude guess here.
                  * That guess was in microseconds, so multiply with 1000 */
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 388254f69a2a..a00545fe5cdd 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -269,6 +269,8 @@ static void hpet_set_mode(enum clock_event_mode mode,
                 now = hpet_readl(HPET_COUNTER);
                 cmp = now + (unsigned long) delta;
                 cfg = hpet_readl(HPET_Tn_CFG(timer));
+                /* Make sure we use edge triggered interrupts */
+                cfg &= ~HPET_TN_LEVEL;
                 cfg |= HPET_TN_ENABLE | HPET_TN_PERIODIC |
                        HPET_TN_SETVAL | HPET_TN_32BIT;
                 hpet_writel(cfg, HPET_Tn_CFG(timer));
diff --git a/arch/x86/kernel/olpc.c b/arch/x86/kernel/olpc.c
index 7a13fac63a1f..4006c522adc7 100644
--- a/arch/x86/kernel/olpc.c
+++ b/arch/x86/kernel/olpc.c
@@ -203,7 +203,7 @@ static void __init platform_detect(void)
 static void __init platform_detect(void)
 {
         /* stopgap until OFW support is added to the kernel */
-        olpc_platform_info.boardrev = 0xc2;
+        olpc_platform_info.boardrev = olpc_board(0xc2);
 }
 #endif
 
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index e4c8fb608873..c6520a4e85d4 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -268,6 +268,32 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
         return __get_cpu_var(paravirt_lazy_mode);
 }
 
+void arch_flush_lazy_mmu_mode(void)
+{
+        preempt_disable();
+
+        if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU) {
+                WARN_ON(preempt_count() == 1);
+                arch_leave_lazy_mmu_mode();
+                arch_enter_lazy_mmu_mode();
+        }
+
+        preempt_enable();
+}
+
+void arch_flush_lazy_cpu_mode(void)
+{
+        preempt_disable();
+
+        if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_CPU) {
+                WARN_ON(preempt_count() == 1);
+                arch_leave_lazy_cpu_mode();
+                arch_enter_lazy_cpu_mode();
+        }
+
+        preempt_enable();
+}
+
 struct pv_info pv_info = {
         .name = "bare hardware",
         .paravirt_enabled = 0,
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 0a5df5f82fb9..5a4c23d89892 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -810,12 +810,16 @@ static void ptrace_bts_untrace(struct task_struct *child)
 
 static void ptrace_bts_detach(struct task_struct *child)
 {
-        if (unlikely(child->bts)) {
-                ds_release_bts(child->bts);
-                child->bts = NULL;
-
-                ptrace_bts_free_buffer(child);
-        }
+        /*
+         * Ptrace_detach() races with ptrace_untrace() in case
+         * the child dies and is reaped by another thread.
+         *
+         * We only do the memory accounting at this point and
+         * leave the buffer deallocation and the bts tracer
+         * release to ptrace_bts_untrace() which will be called
+         * later on with tasklist_lock held.
+         */
+        release_locked_buffer(child->bts_buffer, child->bts_size);
 }
 #else
 static inline void ptrace_bts_fork(struct task_struct *tsk) {}
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 7932338d7cb3..a9e7548e1790 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -99,6 +99,12 @@ static inline void preempt_conditional_sti(struct pt_regs *regs)
                 local_irq_enable();
 }
 
+static inline void conditional_cli(struct pt_regs *regs)
+{
+        if (regs->flags & X86_EFLAGS_IF)
+                local_irq_disable();
+}
+
 static inline void preempt_conditional_cli(struct pt_regs *regs)
 {
         if (regs->flags & X86_EFLAGS_IF)
@@ -626,8 +632,10 @@ clear_dr7:
 
 #ifdef CONFIG_X86_32
 debug_vm86:
+        /* reenable preemption: handle_vm86_trap() might sleep */
+        dec_preempt_count();
         handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code, 1);
-        preempt_conditional_cli(regs);
+        conditional_cli(regs);
         return;
 #endif
 
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index e665d1c623ca..72bd275a9b5c 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -207,7 +207,7 @@ static int __pit_timer_fn(struct kvm_kpit_state *ps)
         hrtimer_add_expires_ns(&pt->timer, pt->period);
         pt->scheduled = hrtimer_get_expires_ns(&pt->timer);
         if (pt->period)
-                ps->channels[0].count_load_time = hrtimer_get_expires(&pt->timer);
+                ps->channels[0].count_load_time = ktime_get();
 
         return (pt->period == 0 ? 0 : 1);
 }
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index c019b8edcdb7..cf17ed52f6fb 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c
@@ -87,13 +87,6 @@ void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu)
 }
 EXPORT_SYMBOL_GPL(kvm_inject_pending_timer_irqs);
 
-void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec)
-{
-        kvm_apic_timer_intr_post(vcpu, vec);
-        /* TODO: PIT, RTC etc. */
-}
-EXPORT_SYMBOL_GPL(kvm_timer_intr_post);
-
 void __kvm_migrate_timers(struct kvm_vcpu *vcpu)
 {
         __kvm_migrate_apic_timer(vcpu);
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index 2bf32a03ceec..82579ee538d0 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -89,7 +89,6 @@ static inline int irqchip_in_kernel(struct kvm *kvm)
 
 void kvm_pic_reset(struct kvm_kpic_state *s);
 
-void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
 void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
 void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
 void kvm_apic_nmi_wd_deliver(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index afac68c0815c..f0b67f2cdd69 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -35,6 +35,12 @@
 #include "kvm_cache_regs.h"
 #include "irq.h"
 
+#ifndef CONFIG_X86_64
+#define mod_64(x, y) ((x) - (y) * div64_u64(x, y))
+#else
+#define mod_64(x, y) ((x) % (y))
+#endif
+
 #define PRId64 "d"
 #define PRIx64 "llx"
 #define PRIu64 "u"
@@ -511,52 +517,22 @@ static void apic_send_ipi(struct kvm_lapic *apic)
 
 static u32 apic_get_tmcct(struct kvm_lapic *apic)
 {
-        u64 counter_passed;
-        ktime_t passed, now;
+        ktime_t remaining;
+        s64 ns;
         u32 tmcct;
 
         ASSERT(apic != NULL);
 
-        now = apic->timer.dev.base->get_time();
-        tmcct = apic_get_reg(apic, APIC_TMICT);
-
         /* if initial count is 0, current count should also be 0 */
-        if (tmcct == 0)
+        if (apic_get_reg(apic, APIC_TMICT) == 0)
                 return 0;
 
-        if (unlikely(ktime_to_ns(now) <=
-                ktime_to_ns(apic->timer.last_update))) {
-                /* Wrap around */
-                passed = ktime_add(( {
-                                    (ktime_t) {
-                                    .tv64 = KTIME_MAX -
-                                    (apic->timer.last_update).tv64}; }
-                                   ), now);
-                apic_debug("time elapsed\n");
-        } else
-                passed = ktime_sub(now, apic->timer.last_update);
-
-        counter_passed = div64_u64(ktime_to_ns(passed),
-                                   (APIC_BUS_CYCLE_NS * apic->timer.divide_count));
-
-        if (counter_passed > tmcct) {
-                if (unlikely(!apic_lvtt_period(apic))) {
-                        /* one-shot timers stick at 0 until reset */
-                        tmcct = 0;
-                } else {
-                        /*
-                         * periodic timers reset to APIC_TMICT when they
-                         * hit 0. The while loop simulates this happening N
-                         * times. (counter_passed %= tmcct) would also work,
-                         * but might be slower or not work on 32-bit??
-                         */
-                        while (counter_passed > tmcct)
-                                counter_passed -= tmcct;
-                        tmcct -= counter_passed;
-                }
-        } else {
-                tmcct -= counter_passed;
-        }
+        remaining = hrtimer_expires_remaining(&apic->timer.dev);
+        if (ktime_to_ns(remaining) < 0)
+                remaining = ktime_set(0, 0);
+
+        ns = mod_64(ktime_to_ns(remaining), apic->timer.period);
+        tmcct = div64_u64(ns, (APIC_BUS_CYCLE_NS * apic->timer.divide_count));
 
         return tmcct;
 }
@@ -653,8 +629,6 @@ static void start_apic_timer(struct kvm_lapic *apic)
 {
         ktime_t now = apic->timer.dev.base->get_time();
 
-        apic->timer.last_update = now;
-
         apic->timer.period = apic_get_reg(apic, APIC_TMICT) *
                     APIC_BUS_CYCLE_NS * apic->timer.divide_count;
         atomic_set(&apic->timer.pending, 0);
@@ -1110,16 +1084,6 @@ void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu)
         }
 }
 
-void kvm_apic_timer_intr_post(struct kvm_vcpu *vcpu, int vec)
-{
-        struct kvm_lapic *apic = vcpu->arch.apic;
-
-        if (apic && apic_lvt_vector(apic, APIC_LVTT) == vec)
-                apic->timer.last_update = ktime_add_ns(
-                                apic->timer.last_update,
-                                apic->timer.period);
-}
-
 int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu)
 {
         int vector = kvm_apic_has_interrupt(vcpu);
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 81858881287e..45ab6ee71209 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -12,7 +12,6 @@ struct kvm_lapic {
                 atomic_t pending;
                 s64 period;     /* unit: ns */
                 u32 divide_count;
-                ktime_t last_update;
                 struct hrtimer dev;
         } timer;
         struct kvm_vcpu *vcpu;
@@ -42,7 +41,6 @@ void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
 void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu);
 int kvm_lapic_enabled(struct kvm_vcpu *vcpu);
 int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
-void kvm_apic_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
 
 void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr);
 void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 83f11c7474a1..2d4477c71473 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1698,8 +1698,13 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
         if (largepage)
                 spte |= PT_PAGE_SIZE_MASK;
         if (mt_mask) {
-                mt_mask = get_memory_type(vcpu, gfn) <<
-                          kvm_x86_ops->get_mt_mask_shift();
+                if (!kvm_is_mmio_pfn(pfn)) {
+                        mt_mask = get_memory_type(vcpu, gfn) <<
+                                kvm_x86_ops->get_mt_mask_shift();
+                        mt_mask |= VMX_EPT_IGMT_BIT;
+                } else
+                        mt_mask = MTRR_TYPE_UNCACHABLE <<
+                                kvm_x86_ops->get_mt_mask_shift();
                 spte |= mt_mask;
         }
 
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 1452851ae258..a9e769e4e251 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1600,7 +1600,6 @@ static void svm_intr_assist(struct kvm_vcpu *vcpu)
         /* Okay, we can deliver the interrupt: grab it and update PIC state. */
         intr_vector = kvm_cpu_get_interrupt(vcpu);
         svm_inject_irq(svm, intr_vector);
-        kvm_timer_intr_post(vcpu, intr_vector);
 out:
         update_cr8_intercept(vcpu);
 }
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6259d7467648..7611af576829 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -903,6 +903,7 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
                 data = vmcs_readl(GUEST_SYSENTER_ESP);
                 break;
         default:
+                vmx_load_host_state(to_vmx(vcpu));
                 msr = find_msr_entry(to_vmx(vcpu), msr_index);
                 if (msr) {
                         data = msr->data;
@@ -3285,7 +3286,6 @@ static void vmx_intr_assist(struct kvm_vcpu *vcpu)
         }
         if (vcpu->arch.interrupt.pending) {
                 vmx_inject_irq(vcpu, vcpu->arch.interrupt.nr);
-                kvm_timer_intr_post(vcpu, vcpu->arch.interrupt.nr);
                 if (kvm_cpu_has_interrupt(vcpu))
                         enable_irq_window(vcpu);
         }
@@ -3687,8 +3687,7 @@ static int __init vmx_init(void)
         if (vm_need_ept()) {
                 bypass_guest_pf = 0;
                 kvm_mmu_set_base_ptes(VMX_EPT_READABLE_MASK |
-                        VMX_EPT_WRITABLE_MASK |
-                        VMX_EPT_IGMT_BIT);
+                        VMX_EPT_WRITABLE_MASK);
                 kvm_mmu_set_mask_ptes(0ull, 0ull, 0ull, 0ull,
                                 VMX_EPT_EXECUTABLE_MASK,
                                 VMX_EPT_DEFAULT_MT << VMX_EPT_MT_EPTE_SHIFT);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index cc17546a2406..758b7a155ae9 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -967,7 +967,6 @@ int kvm_dev_ioctl_check_extension(long ext)
         case KVM_CAP_MMU_SHADOW_CACHE_CONTROL:
         case KVM_CAP_SET_TSS_ADDR:
         case KVM_CAP_EXT_CPUID:
-        case KVM_CAP_CLOCKSOURCE:
         case KVM_CAP_PIT:
         case KVM_CAP_NOP_IO_DELAY:
         case KVM_CAP_MP_STATE:
@@ -992,6 +991,9 @@ int kvm_dev_ioctl_check_extension(long ext)
         case KVM_CAP_IOMMU:
                 r = iommu_found();
                 break;
+        case KVM_CAP_CLOCKSOURCE:
+                r = boot_cpu_has(X86_FEATURE_CONSTANT_TSC);
+                break;
         default:
                 r = 0;
                 break;
@@ -4127,9 +4129,13 @@ static void kvm_free_vcpus(struct kvm *kvm)
 
 }
 
-void kvm_arch_destroy_vm(struct kvm *kvm)
+void kvm_arch_sync_events(struct kvm *kvm)
 {
         kvm_free_all_assigned_devices(kvm);
+}
+
+void kvm_arch_destroy_vm(struct kvm *kvm)
+{
         kvm_iommu_unmap_guest(kvm);
         kvm_free_pit(kvm);
         kfree(kvm->arch.vpic);
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index af750ab973b6..f45d5e29a72e 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -134,25 +134,6 @@ int page_is_ram(unsigned long pagenr)
         return 0;
 }
 
-int pagerange_is_ram(unsigned long start, unsigned long end)
-{
-        int ram_page = 0, not_rampage = 0;
-        unsigned long page_nr;
-
-        for (page_nr = (start >> PAGE_SHIFT); page_nr < (end >> PAGE_SHIFT);
-             ++page_nr) {
-                if (page_is_ram(page_nr))
-                        ram_page = 1;
-                else
-                        not_rampage = 1;
-
-                if (ram_page == not_rampage)
-                        return -1;
-        }
-
-        return ram_page;
-}
-
 /*
  * Fix up the linear direct mapping of the kernel to avoid cache attribute
  * conflicts.
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 71a14f89f89e..f3516da035d1 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -145,7 +145,7 @@ int __init compute_hash_shift(struct bootnode *nodes, int numnodes,
         return shift;
 }
 
-int early_pfn_to_nid(unsigned long pfn)
+int __meminit  __early_pfn_to_nid(unsigned long pfn)
 {
         return phys_to_nid(pfn << PAGE_SHIFT);
 }
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 84ba74820ad6..8ca0d8566fc8 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -575,7 +575,6 @@ static int __change_page_attr(struct cpa_data *cpa, int primary)
                 address = cpa->vaddr[cpa->curpage];
         else
                 address = *cpa->vaddr;
-
 repeat:
         kpte = lookup_address(address, &level);
         if (!kpte)
@@ -812,6 +811,13 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages,
 
         vm_unmap_aliases();
 
+        /*
+         * If we're called with lazy mmu updates enabled, the
+         * in-memory pte state may be stale.  Flush pending updates to
+         * bring them up to date.
+         */
+        arch_flush_lazy_mmu_mode();
+
         cpa.vaddr = addr;
         cpa.numpages = numpages;
         cpa.mask_set = mask_set;
@@ -854,6 +860,13 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages,
         } else
                 cpa_flush_all(cache);
 
+        /*
+         * If we've been called with lazy mmu updates enabled, then
+         * make sure that everything gets flushed out before we
+         * return.
+         */
+        arch_flush_lazy_mmu_mode();
+
 out:
         return ret;
 }
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 7b61036427df..aebbf67a79d0 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -211,6 +211,33 @@ chk_conflict(struct memtype *new, struct memtype *entry, unsigned long *type)
 static struct memtype *cached_entry;
 static u64 cached_start;
 
+static int pat_pagerange_is_ram(unsigned long start, unsigned long end)
+{
+        int ram_page = 0, not_rampage = 0;
+        unsigned long page_nr;
+
+        for (page_nr = (start >> PAGE_SHIFT); page_nr < (end >> PAGE_SHIFT);
+             ++page_nr) {
+                /*
+                 * For legacy reasons, physical address range in the legacy ISA
+                 * region is tracked as non-RAM. This will allow users of
+                 * /dev/mem to map portions of legacy ISA region, even when
+                 * some of those portions are listed(or not even listed) with
+                 * different e820 types(RAM/reserved/..)
+                 */
+                if (page_nr >= (ISA_END_ADDRESS >> PAGE_SHIFT) &&
+                    page_is_ram(page_nr))
+                        ram_page = 1;
+                else
+                        not_rampage = 1;
+
+                if (ram_page == not_rampage)
+                        return -1;
+        }
+
+        return ram_page;
+}
+
 /*
  * For RAM pages, mark the pages as non WB memory type using
  * PageNonWB (PG_arch_1). We allow only one set_memory_uc() or
@@ -336,20 +363,12 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type,
         if (new_type)
                 *new_type = actual_type;
 
-        /*
-         * For legacy reasons, some parts of the physical address range in the
-         * legacy 1MB region is treated as non-RAM (even when listed as RAM in
-         * the e820 tables).  So we will track the memory attributes of this
-         * legacy 1MB region using the linear memtype_list always.
-         */
-        if (end >= ISA_END_ADDRESS) {
-                is_range_ram = pagerange_is_ram(start, end);
-                if (is_range_ram == 1)
-                        return reserve_ram_pages_type(start, end, req_type,
-                                                      new_type);
-                else if (is_range_ram < 0)
-                        return -EINVAL;
-        }
+        is_range_ram = pat_pagerange_is_ram(start, end);
+        if (is_range_ram == 1)
+                return reserve_ram_pages_type(start, end, req_type,
+                                              new_type);
+        else if (is_range_ram < 0)
+                return -EINVAL;
 
         new  = kmalloc(sizeof(struct memtype), GFP_KERNEL);
         if (!new)
@@ -446,19 +465,11 @@ int free_memtype(u64 start, u64 end)
         if (is_ISA_range(start, end - 1))
                 return 0;
 
-        /*
-         * For legacy reasons, some parts of the physical address range in the
-         * legacy 1MB region is treated as non-RAM (even when listed as RAM in
-         * the e820 tables).  So we will track the memory attributes of this
-         * legacy 1MB region using the linear memtype_list always.
-         */
-        if (end >= ISA_END_ADDRESS) {
-                is_range_ram = pagerange_is_ram(start, end);
-                if (is_range_ram == 1)
-                        return free_ram_pages_type(start, end);
-                else if (is_range_ram < 0)
-                        return -EINVAL;
-        }
+        is_range_ram = pat_pagerange_is_ram(start, end);
+        if (is_range_ram == 1)
+                return free_ram_pages_type(start, end);
+        else if (is_range_ram < 0)
+                return -EINVAL;
 
         spin_lock(&memtype_lock);
         list_for_each_entry(entry, &memtype_list, nd) {
@@ -626,17 +637,13 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
         unsigned long flags;
         unsigned long want_flags = (pgprot_val(*vma_prot) & _PAGE_CACHE_MASK);
 
-        is_ram = pagerange_is_ram(paddr, paddr + size);
+        is_ram = pat_pagerange_is_ram(paddr, paddr + size);
 
-        if (is_ram != 0) {
-                /*
-                 * For mapping RAM pages, drivers need to call
-                 * set_memory_[uc|wc|wb] directly, for reserve and free, before
-                 * setting up the PTE.
-                 */
-                WARN_ON_ONCE(1);
-                return 0;
-        }
+        /*
+         * reserve_pfn_range() doesn't support RAM pages.
+         */
+        if (is_ram != 0)
+                return -EINVAL;
 
         ret = reserve_memtype(paddr, paddr + size, want_flags, &flags);
         if (ret)
@@ -693,7 +700,7 @@ static void free_pfn_range(u64 paddr, unsigned long size)
 {
         int is_ram;
 
-        is_ram = pagerange_is_ram(paddr, paddr + size);
+        is_ram = pat_pagerange_is_ram(paddr, paddr + size);
         if (is_ram == 0)
                 free_memtype(paddr, paddr + size);
 }
diff --git a/block/blk-timeout.c b/block/blk-timeout.c
index a09535377a94..bbbdc4b8ccf2 100644
--- a/block/blk-timeout.c
+++ b/block/blk-timeout.c
@@ -209,12 +209,19 @@ void blk_abort_queue(struct request_queue *q)
 {
         unsigned long flags;
         struct request *rq, *tmp;
+        LIST_HEAD(list);
 
         spin_lock_irqsave(q->queue_lock, flags);
 
         elv_abort_queue(q);
 
-        list_for_each_entry_safe(rq, tmp, &q->timeout_list, timeout_list)
+        /*
+         * Splice entries to local list, to avoid deadlocking if entries
+         * get readded to the timeout list by error handling
+         */
+        list_splice_init(&q->timeout_list, &list);
+
+        list_for_each_entry_safe(rq, tmp, &list, timeout_list)
                 blk_abort_request(rq);
 
         spin_unlock_irqrestore(q->queue_lock, flags);
diff --git a/block/bsg.c b/block/bsg.c
index d414bb5607e8..0ce8806dd0c1 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -244,7 +244,8 @@ bsg_validate_sgv4_hdr(struct request_queue *q, struct sg_io_v4 *hdr, int *rw)
  * map sg_io_v4 to a request.
  */
 static struct request *
-bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm)
+bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm,
+            u8 *sense)
 {
         struct request_queue *q = bd->queue;
         struct request *rq, *next_rq = NULL;
@@ -306,6 +307,10 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm)
                 if (ret)
                         goto out;
         }
+
+        rq->sense = sense;
+        rq->sense_len = 0;
+
         return rq;
 out:
         if (rq->cmd != rq->__cmd)
@@ -348,9 +353,6 @@ static void bsg_rq_end_io(struct request *rq, int uptodate)
 static void bsg_add_command(struct bsg_device *bd, struct request_queue *q,
                             struct bsg_command *bc, struct request *rq)
 {
-        rq->sense = bc->sense;
-        rq->sense_len = 0;
-
         /*
          * add bc command to busy queue and submit rq for io
          */
@@ -419,7 +421,7 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr,
 {
         int ret = 0;
 
-        dprintk("rq %p bio %p %u\n", rq, bio, rq->errors);
+        dprintk("rq %p bio %p 0x%x\n", rq, bio, rq->errors);
         /*
          * fill in all the output members
          */
@@ -635,7 +637,7 @@ static int __bsg_write(struct bsg_device *bd, const char __user *buf,
                 /*
                  * get a request, fill in the blanks, and add to request queue
                  */
-                rq = bsg_map_hdr(bd, &bc->hdr, has_write_perm);
+                rq = bsg_map_hdr(bd, &bc->hdr, has_write_perm, bc->sense);
                 if (IS_ERR(rq)) {
                         ret = PTR_ERR(rq);
                         rq = NULL;
@@ -922,11 +924,12 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                 struct request *rq;
                 struct bio *bio, *bidi_bio = NULL;
                 struct sg_io_v4 hdr;
+                u8 sense[SCSI_SENSE_BUFFERSIZE];
 
                 if (copy_from_user(&hdr, uarg, sizeof(hdr)))
                         return -EFAULT;
 
-                rq = bsg_map_hdr(bd, &hdr, file->f_mode & FMODE_WRITE);
+                rq = bsg_map_hdr(bd, &hdr, file->f_mode & FMODE_WRITE, sense);
                 if (IS_ERR(rq))
                         return PTR_ERR(rq);
 
diff --git a/block/genhd.c b/block/genhd.c
index 397960cf26af..e1eadcc9546a 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1087,6 +1087,14 @@ dev_t blk_lookup_devt(const char *name, int partno)
                 if (strcmp(dev_name(dev), name))
                         continue;
 
+                if (partno < disk->minors) {
+                        /* We need to return the right devno, even
+                         * if the partition doesn't exist yet.
+                         */
+                        devt = MKDEV(MAJOR(dev->devt),
+                                     MINOR(dev->devt) + partno);
+                        break;
+                }
                 part = disk_get_part(disk, partno);
                 if (part) {
                         devt = part_devt(part);
diff --git a/crypto/lrw.c b/crypto/lrw.c
index 8ef664e3bcd9..358f80be2bf9 100644
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -45,7 +45,13 @@ struct priv {
 
 static inline void setbit128_bbe(void *b, int bit)
 {
-        __set_bit(bit ^ 0x78, b);
+        __set_bit(bit ^ (0x80 -
+#ifdef __BIG_ENDIAN
+                         BITS_PER_LONG
+#else
+                         BITS_PER_BYTE
+#endif
+                        ), b);
 }
 
 static int setkey(struct crypto_tfm *parent, const u8 *key,
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 0b299b0f8172..714cb046b594 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -773,18 +773,32 @@ unsigned int ata_sff_data_xfer32(struct ata_device *dev, unsigned char *buf,
         else
                 iowrite32_rep(data_addr, buf, words);
 
+        /* Transfer trailing bytes, if any */
         if (unlikely(slop)) {
-                __le32 pad;
+                unsigned char pad[4];
+
+                /* Point buf to the tail of buffer */
+                buf += buflen - slop;
+
+                /*
+                 * Use io*_rep() accessors here as well to avoid pointlessly
+                 * swapping bytes to and fro on the big endian machines...
+                 */
                 if (rw == READ) {
-                        pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr));
-                        memcpy(buf + buflen - slop, &pad, slop);
+                        if (slop < 3)
+                                ioread16_rep(data_addr, pad, 1);
+                        else
+                                ioread32_rep(data_addr, pad, 1);
+                        memcpy(buf, pad, slop);
                 } else {
-                        memcpy(&pad, buf + buflen - slop, slop);
-                        iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr);
+                        memcpy(pad, buf, slop);
+                        if (slop < 3)
+                                iowrite16_rep(data_addr, pad, 1);
+                        else
+                                iowrite32_rep(data_addr, pad, 1);
                 }
-                words++;
         }
-        return words << 2;
+        return (buflen + 1) & ~1;
 }
 EXPORT_SYMBOL_GPL(ata_sff_data_xfer32);
 
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 79a6c9a0b721..ba556d3e6963 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -110,7 +110,8 @@ static const struct via_isa_bridge {
         { "vt8237s",    PCI_DEVICE_ID_VIA_8237S,    0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
         { "vt8251",     PCI_DEVICE_ID_VIA_8251,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
         { "cx700",      PCI_DEVICE_ID_VIA_CX700,    0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_SATA_PATA },
-        { "vt6410",     PCI_DEVICE_ID_VIA_6410,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES},
+        { "vt6410",     PCI_DEVICE_ID_VIA_6410,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES },
+        { "vt6415",     PCI_DEVICE_ID_VIA_6415,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES },
         { "vt8237a",    PCI_DEVICE_ID_VIA_8237A,    0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
         { "vt8237",     PCI_DEVICE_ID_VIA_8237,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
         { "vt8235",     PCI_DEVICE_ID_VIA_8235,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
@@ -593,6 +594,7 @@ static int via_reinit_one(struct pci_dev *pdev)
 #endif
 
 static const struct pci_device_id via[] = {
+        { PCI_VDEVICE(VIA, 0x0415), },
         { PCI_VDEVICE(VIA, 0x0571), },
         { PCI_VDEVICE(VIA, 0x0581), },
         { PCI_VDEVICE(VIA, 0x1571), },
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 444af0415ca1..55a8eed3f3a3 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -421,19 +421,21 @@ static struct ata_port_operations nv_generic_ops = {
         .hardreset              = ATA_OP_NULL,
 };
 
-/* OSDL bz3352 reports that nf2/3 controllers can't determine device
- * signature reliably.  Also, the following thread reports detection
- * failure on cold boot with the standard debouncing timing.
+/* nf2 is ripe with hardreset related problems.
+ *
+ * kernel bz#3352 reports nf2/3 controllers can't determine device
+ * signature reliably.  The following thread reports detection failure
+ * on cold boot with the standard debouncing timing.
  *
  * http://thread.gmane.org/gmane.linux.ide/34098
  *
- * Debounce with hotplug timing and request follow-up SRST.
+ * And bz#12176 reports that hardreset simply doesn't work on nf2.
+ * Give up on it and just don't do hardreset.
  */
 static struct ata_port_operations nv_nf2_ops = {
-        .inherits               = &nv_common_ops,
+        .inherits               = &nv_generic_ops,
         .freeze                 = nv_nf2_freeze,
         .thaw                   = nv_nf2_thaw,
-        .hardreset              = nv_noclassify_hardreset,
 };
 
 /* For initial probing after boot and hot plugging, hardreset mostly
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index c237527b1aa5..5e41e6dd657b 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -18,6 +18,7 @@
 enum {
         AOECMD_ATA,
         AOECMD_CFG,
+        AOECMD_VEND_MIN = 0xf0,
 
         AOEFL_RSP = (1<<3),
         AOEFL_ERR = (1<<2),
diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c
index 30de5b1c647e..c6099ba9a4b8 100644
--- a/drivers/block/aoe/aoenet.c
+++ b/drivers/block/aoe/aoenet.c
@@ -142,6 +142,8 @@ aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt,
                 aoecmd_cfg_rsp(skb);
                 break;
         default:
+                if (h->cmd >= AOECMD_VEND_MIN)
+                        break;  /* don't complain about vendor commands */
                 printk(KERN_INFO "aoe: unknown cmd %d\n", h->cmd);
         }
 exit:
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 01e69383d9c0..d2cb67b61176 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3390,6 +3390,203 @@ static void free_hba(int i)
         kfree(p);
 }
 
+/* Send a message CDB to the firmware. */
+static __devinit int cciss_message(struct pci_dev *pdev, unsigned char opcode, unsigned char type)
+{
+        typedef struct {
+                CommandListHeader_struct CommandHeader;
+                RequestBlock_struct Request;
+                ErrDescriptor_struct ErrorDescriptor;
+        } Command;
+        static const size_t cmd_sz = sizeof(Command) + sizeof(ErrorInfo_struct);
+        Command *cmd;
+        dma_addr_t paddr64;
+        uint32_t paddr32, tag;
+        void __iomem *vaddr;
+        int i, err;
+
+        vaddr = ioremap_nocache(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
+        if (vaddr == NULL)
+                return -ENOMEM;
+
+        /* The Inbound Post Queue only accepts 32-bit physical addresses for the
+           CCISS commands, so they must be allocated from the lower 4GiB of
+           memory. */
+        err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+        if (err) {
+                iounmap(vaddr);
+                return -ENOMEM;
+        }
+
+        cmd = pci_alloc_consistent(pdev, cmd_sz, &paddr64);
+        if (cmd == NULL) {
+                iounmap(vaddr);
+                return -ENOMEM;
+        }
+
+        /* This must fit, because of the 32-bit consistent DMA mask.  Also,
+           although there's no guarantee, we assume that the address is at
+           least 4-byte aligned (most likely, it's page-aligned). */
+        paddr32 = paddr64;
+
+        cmd->CommandHeader.ReplyQueue = 0;
+        cmd->CommandHeader.SGList = 0;
+        cmd->CommandHeader.SGTotal = 0;
+        cmd->CommandHeader.Tag.lower = paddr32;
+        cmd->CommandHeader.Tag.upper = 0;
+        memset(&cmd->CommandHeader.LUN.LunAddrBytes, 0, 8);
+
+        cmd->Request.CDBLen = 16;
+        cmd->Request.Type.Type = TYPE_MSG;
+        cmd->Request.Type.Attribute = ATTR_HEADOFQUEUE;
+        cmd->Request.Type.Direction = XFER_NONE;
+        cmd->Request.Timeout = 0; /* Don't time out */
+        cmd->Request.CDB[0] = opcode;
+        cmd->Request.CDB[1] = type;
+        memset(&cmd->Request.CDB[2], 0, 14); /* the rest of the CDB is reserved */
+
+        cmd->ErrorDescriptor.Addr.lower = paddr32 + sizeof(Command);
+        cmd->ErrorDescriptor.Addr.upper = 0;
+        cmd->ErrorDescriptor.Len = sizeof(ErrorInfo_struct);
+
+        writel(paddr32, vaddr + SA5_REQUEST_PORT_OFFSET);
+
+        for (i = 0; i < 10; i++) {
+                tag = readl(vaddr + SA5_REPLY_PORT_OFFSET);
+                if ((tag & ~3) == paddr32)
+                        break;
+                schedule_timeout_uninterruptible(HZ);
+        }
+
+        iounmap(vaddr);
+
+        /* we leak the DMA buffer here ... no choice since the controller could
+           still complete the command. */
+        if (i == 10) {
+                printk(KERN_ERR "cciss: controller message %02x:%02x timed out\n",
+                        opcode, type);
+                return -ETIMEDOUT;
+        }
+
+        pci_free_consistent(pdev, cmd_sz, cmd, paddr64);
+
+        if (tag & 2) {
+                printk(KERN_ERR "cciss: controller message %02x:%02x failed\n",
+                        opcode, type);
+                return -EIO;
+        }
+
+        printk(KERN_INFO "cciss: controller message %02x:%02x succeeded\n",
+                opcode, type);
+        return 0;
+}
+
+#define cciss_soft_reset_controller(p) cciss_message(p, 1, 0)
+#define cciss_noop(p) cciss_message(p, 3, 0)
+
+static __devinit int cciss_reset_msi(struct pci_dev *pdev)
+{
+/* the #defines are stolen from drivers/pci/msi.h. */
+#define msi_control_reg(base)           (base + PCI_MSI_FLAGS)
+#define PCI_MSIX_FLAGS_ENABLE           (1 << 15)
+
+        int pos;
+        u16 control = 0;
+
+        pos = pci_find_capability(pdev, PCI_CAP_ID_MSI);
+        if (pos) {
+                pci_read_config_word(pdev, msi_control_reg(pos), &control);
+                if (control & PCI_MSI_FLAGS_ENABLE) {
+                        printk(KERN_INFO "cciss: resetting MSI\n");
+                        pci_write_config_word(pdev, msi_control_reg(pos), control & ~PCI_MSI_FLAGS_ENABLE);
+                }
+        }
+
+        pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
+        if (pos) {
+                pci_read_config_word(pdev, msi_control_reg(pos), &control);
+                if (control & PCI_MSIX_FLAGS_ENABLE) {
+                        printk(KERN_INFO "cciss: resetting MSI-X\n");
+                        pci_write_config_word(pdev, msi_control_reg(pos), control & ~PCI_MSIX_FLAGS_ENABLE);
+                }
+        }
+
+        return 0;
+}
+
+/* This does a hard reset of the controller using PCI power management
+ * states. */
+static __devinit int cciss_hard_reset_controller(struct pci_dev *pdev)
+{
+        u16 pmcsr, saved_config_space[32];
+        int i, pos;
+
+        printk(KERN_INFO "cciss: using PCI PM to reset controller\n");
+
+        /* This is very nearly the same thing as
+
+           pci_save_state(pci_dev);
+           pci_set_power_state(pci_dev, PCI_D3hot);
+           pci_set_power_state(pci_dev, PCI_D0);
+           pci_restore_state(pci_dev);
+
+           but we can't use these nice canned kernel routines on
+           kexec, because they also check the MSI/MSI-X state in PCI
+           configuration space and do the wrong thing when it is
+           set/cleared.  Also, the pci_save/restore_state functions
+           violate the ordering requirements for restoring the
+           configuration space from the CCISS document (see the
+           comment below).  So we roll our own .... */
+
+        for (i = 0; i < 32; i++)
+                pci_read_config_word(pdev, 2*i, &saved_config_space[i]);
+
+        pos = pci_find_capability(pdev, PCI_CAP_ID_PM);
+        if (pos == 0) {
+                printk(KERN_ERR "cciss_reset_controller: PCI PM not supported\n");
+                return -ENODEV;
+        }
+
+        /* Quoting from the Open CISS Specification: "The Power
+         * Management Control/Status Register (CSR) controls the power
+         * state of the device.  The normal operating state is D0,
+         * CSR=00h.  The software off state is D3, CSR=03h.  To reset
+         * the controller, place the interface device in D3 then to
+         * D0, this causes a secondary PCI reset which will reset the
+         * controller." */
+
+        /* enter the D3hot power management state */
+        pci_read_config_word(pdev, pos + PCI_PM_CTRL, &pmcsr);
+        pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
+        pmcsr |= PCI_D3hot;
+        pci_write_config_word(pdev, pos + PCI_PM_CTRL, pmcsr);
+
+        schedule_timeout_uninterruptible(HZ >> 1);
+
+        /* enter the D0 power management state */
+        pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
+        pmcsr |= PCI_D0;
+        pci_write_config_word(pdev, pos + PCI_PM_CTRL, pmcsr);
+
+        schedule_timeout_uninterruptible(HZ >> 1);
+
+        /* Restore the PCI configuration space.  The Open CISS
+         * Specification says, "Restore the PCI Configuration
+         * Registers, offsets 00h through 60h. It is important to
+         * restore the command register, 16-bits at offset 04h,
+         * last. Do not restore the configuration status register,
+         * 16-bits at offset 06h."  Note that the offset is 2*i. */
+        for (i = 0; i < 32; i++) {
+                if (i == 2 || i == 3)
+                        continue;
+                pci_write_config_word(pdev, 2*i, saved_config_space[i]);
+        }
+        wmb();
+        pci_write_config_word(pdev, 4, saved_config_space[2]);
+
+        return 0;
+}
+
 /*
  *  This is it.  Find all the controllers and register them.  I really hate
  *  stealing all these major device numbers.
@@ -3404,6 +3601,24 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
         int dac, return_code;
         InquiryData_struct *inq_buff = NULL;
 
+        if (reset_devices) {
+                /* Reset the controller with a PCI power-cycle */
+                if (cciss_hard_reset_controller(pdev) || cciss_reset_msi(pdev))
+                        return -ENODEV;
+
+                /* Some devices (notably the HP Smart Array 5i Controller)
+                   need a little pause here */
+                schedule_timeout_uninterruptible(30*HZ);
+
+                /* Now try to get the controller to respond to a no-op */
+                for (i=0; i<12; i++) {
+                        if (cciss_noop(pdev) == 0)
+                                break;
+                        else
+                                printk("cciss: no-op failed%s\n", (i < 11 ? "; re-trying" : ""));
+                }
+        }
+
         i = alloc_cciss_hba();
         if (i < 0)
                 return -1;
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index cf29cc4e6ab7..83d8ed39433d 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -558,6 +558,8 @@ static void process_fd_request(void);
 static void recalibrate_floppy(void);
 static void floppy_shutdown(unsigned long);
 
+static int floppy_request_regions(int);
+static void floppy_release_regions(int);
 static int floppy_grab_irq_and_dma(void);
 static void floppy_release_irq_and_dma(void);
 
@@ -4274,8 +4276,7 @@ static int __init floppy_init(void)
                 FDCS->rawcmd = 2;
                 if (user_reset_fdc(-1, FD_RESET_ALWAYS, 0)) {
                         /* free ioports reserved by floppy_grab_irq_and_dma() */
-                        release_region(FDCS->address + 2, 4);
-                        release_region(FDCS->address + 7, 1);
+                        floppy_release_regions(fdc);
                         FDCS->address = -1;
                         FDCS->version = FDC_NONE;
                         continue;
@@ -4284,8 +4285,7 @@ static int __init floppy_init(void)
                 FDCS->version = get_fdc_version();
                 if (FDCS->version == FDC_NONE) {
                         /* free ioports reserved by floppy_grab_irq_and_dma() */
-                        release_region(FDCS->address + 2, 4);
-                        release_region(FDCS->address + 7, 1);
+                        floppy_release_regions(fdc);
                         FDCS->address = -1;
                         continue;
                 }
@@ -4358,6 +4358,47 @@ out_put_disk:
 
 static DEFINE_SPINLOCK(floppy_usage_lock);
 
+static const struct io_region {
+        int offset;
+        int size;
+} io_regions[] = {
+        { 2, 1 },
+        /* address + 3 is sometimes reserved by pnp bios for motherboard */
+        { 4, 2 },
+        /* address + 6 is reserved, and may be taken by IDE.
+         * Unfortunately, Adaptec doesn't know this :-(, */
+        { 7, 1 },
+};
+
+static void floppy_release_allocated_regions(int fdc, const struct io_region *p)
+{
+        while (p != io_regions) {
+                p--;
+                release_region(FDCS->address + p->offset, p->size);
+        }
+}
+
+#define ARRAY_END(X) (&((X)[ARRAY_SIZE(X)]))
+
+static int floppy_request_regions(int fdc)
+{
+        const struct io_region *p;
+
+        for (p = io_regions; p < ARRAY_END(io_regions); p++) {
+                if (!request_region(FDCS->address + p->offset, p->size, "floppy")) {
+                        DPRINT("Floppy io-port 0x%04lx in use\n", FDCS->address + p->offset);
+                        floppy_release_allocated_regions(fdc, p);
+                        return -EBUSY;
+                }
+        }
+        return 0;
+}
+
+static void floppy_release_regions(int fdc)
+{
+        floppy_release_allocated_regions(fdc, ARRAY_END(io_regions));
+}
+
 static int floppy_grab_irq_and_dma(void)
 {
         unsigned long flags;
@@ -4399,18 +4440,8 @@ static int floppy_grab_irq_and_dma(void)
 
         for (fdc = 0; fdc < N_FDC; fdc++) {
                 if (FDCS->address != -1) {
-                        if (!request_region(FDCS->address + 2, 4, "floppy")) {
-                                DPRINT("Floppy io-port 0x%04lx in use\n",
-                                       FDCS->address + 2);
-                                goto cleanup1;
-                        }
-                        if (!request_region(FDCS->address + 7, 1, "floppy DIR")) {
-                                DPRINT("Floppy io-port 0x%04lx in use\n",
-                                       FDCS->address + 7);
-                                goto cleanup2;
-                        }
-                        /* address + 6 is reserved, and may be taken by IDE.
-                         * Unfortunately, Adaptec doesn't know this :-(, */
+                        if (floppy_request_regions(fdc))
+                                goto cleanup;
                 }
         }
         for (fdc = 0; fdc < N_FDC; fdc++) {
@@ -4432,15 +4463,11 @@ static int floppy_grab_irq_and_dma(void)
         fdc = 0;
         irqdma_allocated = 1;
         return 0;
-cleanup2:
-        release_region(FDCS->address + 2, 4);
-cleanup1:
+cleanup:
         fd_free_irq();
         fd_free_dma();
-        while (--fdc >= 0) {
-                release_region(FDCS->address + 2, 4);
-                release_region(FDCS->address + 7, 1);
-        }
+        while (--fdc >= 0)
+                floppy_release_regions(fdc);
         spin_lock_irqsave(&floppy_usage_lock, flags);
         usage_count--;
         spin_unlock_irqrestore(&floppy_usage_lock, flags);
@@ -4501,10 +4528,8 @@ static void floppy_release_irq_and_dma(void)
 #endif
         old_fdc = fdc;
         for (fdc = 0; fdc < N_FDC; fdc++)
-                if (FDCS->address != -1) {
-                        release_region(FDCS->address + 2, 4);
-                        release_region(FDCS->address + 7, 1);
-                }
+                if (FDCS->address != -1)
+                        floppy_release_regions(fdc);
         fdc = old_fdc;
 }
 
diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c
index 9dfa27163001..c397b3ddba9b 100644
--- a/drivers/block/paride/pg.c
+++ b/drivers/block/paride/pg.c
@@ -422,7 +422,7 @@ static void xs(char *buf, char *targ, int len)
 
         for (k = 0; k < len; k++) {
                 char c = *buf++;
-                if (c != ' ' || c != l)
+                if (c != ' ' && c != l)
                         l = *targ++ = c;
         }
         if (l == ' ')
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index a58993011edb..280a9d263eb3 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -518,6 +518,7 @@ struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask, dma_filter_fn fn, v
                                        dma_chan_name(chan), err);
                         else
                                 break;
+                        chan->private = NULL;
                         chan = NULL;
                 }
         }
@@ -536,6 +537,7 @@ void dma_release_channel(struct dma_chan *chan)
         WARN_ONCE(chan->client_count != 1,
                   "chan reference count %d != 1\n", chan->client_count);
         dma_chan_put(chan);
+        chan->private = NULL;
         mutex_unlock(&dma_list_mutex);
 }
 EXPORT_SYMBOL_GPL(dma_release_channel);
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 6b702cc46b3d..a97c07eef7ec 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -560,7 +560,7 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
                 unsigned long flags)
 {
         struct dw_dma_chan      *dwc = to_dw_dma_chan(chan);
-        struct dw_dma_slave     *dws = dwc->dws;
+        struct dw_dma_slave     *dws = chan->private;
         struct dw_desc          *prev;
         struct dw_desc          *first;
         u32                     ctllo;
@@ -790,7 +790,7 @@ static int dwc_alloc_chan_resources(struct dma_chan *chan)
         cfghi = DWC_CFGH_FIFO_MODE;
         cfglo = 0;
 
-        dws = dwc->dws;
+        dws = chan->private;
         if (dws) {
                 /*
                  * We need controller-specific data to set up slave
@@ -866,7 +866,6 @@ static void dwc_free_chan_resources(struct dma_chan *chan)
         spin_lock_bh(&dwc->lock);
         list_splice_init(&dwc->free_list, &list);
         dwc->descs_allocated = 0;
-        dwc->dws = NULL;
 
         /* Disable interrupts */
         channel_clear_bit(dw, MASK.XFER, dwc->mask);
diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h
index 00fdd187bb0c..b252b202c5cf 100644
--- a/drivers/dma/dw_dmac_regs.h
+++ b/drivers/dma/dw_dmac_regs.h
@@ -139,8 +139,6 @@ struct dw_dma_chan {
         struct list_head        queue;
         struct list_head        free_list;
 
-        struct dw_dma_slave     *dws;
-
         unsigned int            descs_allocated;
 };
 
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index 261b9aa3f248..05aa2d406ac6 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c
@@ -1,7 +1,7 @@
 /*
  * linux/drivers/firmware/memmap.c
  *  Copyright (C) 2008 SUSE LINUX Products GmbH
- *  by Bernhard Walle <bwalle@suse.de>
+ *  by Bernhard Walle <bernhard.walle@gmx.de>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License v2.0 as published by
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 4be3acbaaf9a..3a22eb9be378 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -80,18 +80,17 @@ config DRM_I915
           XFree86 4.4 and above. If unsure, build this and i830 as modules and
           the X server will load the correct one.
 
-endchoice
-
 config DRM_I915_KMS
         bool "Enable modesetting on intel by default"
         depends on DRM_I915
         help
-        Choose this option if you want kernel modesetting enabled by default,
-        and you have a new enough userspace to support this. Running old
-        userspaces with this enabled will cause pain.  Note that this causes
-        the driver to bind to PCI devices, which precludes loading things
-        like intelfb.
+          Choose this option if you want kernel modesetting enabled by default,
+          and you have a new enough userspace to support this. Running old
+          userspaces with this enabled will cause pain.  Note that this causes
+          the driver to bind to PCI devices, which precludes loading things
+          like intelfb.
 
+endchoice
 
 config DRM_MGA
         tristate "Matrox g200/g400"
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 6cad69ed21c5..1cc967448f4d 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1300,7 +1300,13 @@ static const struct hid_device_id hid_blacklist[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
         { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
 
         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 0x030c) },
         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
@@ -1605,6 +1611,7 @@ static const struct hid_device_id hid_ignore_list[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
         { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD) },
         { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD2) },
         { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD3) },
@@ -1612,10 +1619,6 @@ static const struct hid_device_id hid_ignore_list[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD5) },
         { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY1) },
         { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY2) },
-        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
-        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
-        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
-        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
@@ -1626,8 +1629,6 @@ static const struct hid_device_id hid_ignore_list[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
         { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
-        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
-        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
         { }
 };
 
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index e899f510ebeb..88511970508d 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -348,6 +348,9 @@
 #define USB_VENDOR_ID_PLAYDOTCOM        0x0b43
 #define USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII      0x0003
 
+#define USB_VENDOR_ID_POWERCOM          0x0d9f
+#define USB_DEVICE_ID_POWERCOM_UPS      0x0002
+
 #define USB_VENDOR_ID_SAITEK            0x06a3
 #define USB_DEVICE_ID_SAITEK_RUMBLEPAD  0xff17
 
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 732449628971..02b19db5442e 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -267,8 +267,10 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd,
                 default:
                         {
                                 struct hid_device *hid = dev->hid;
-                                if (_IOC_TYPE(cmd) != 'H' || _IOC_DIR(cmd) != _IOC_READ)
-                                        return -EINVAL;
+                                if (_IOC_TYPE(cmd) != 'H' || _IOC_DIR(cmd) != _IOC_READ) {
+                                        ret = -EINVAL;
+                                        break;
+                                }
 
                                 if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWNAME(0))) {
                                         int len;
@@ -277,8 +279,9 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd,
                                         len = strlen(hid->name) + 1;
                                         if (len > _IOC_SIZE(cmd))
                                                 len = _IOC_SIZE(cmd);
-                                        return copy_to_user(user_arg, hid->name, len) ?
+                                        ret = copy_to_user(user_arg, hid->name, len) ?
                                                 -EFAULT : len;
+                                        break;
                                 }
 
                                 if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWPHYS(0))) {
@@ -288,12 +291,13 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd,
                                         len = strlen(hid->phys) + 1;
                                         if (len > _IOC_SIZE(cmd))
                                                 len = _IOC_SIZE(cmd);
-                                        return copy_to_user(user_arg, hid->phys, len) ?
+                                        ret = copy_to_user(user_arg, hid->phys, len) ?
                                                 -EFAULT : len;
+                                        break;
                                 }
                 }
 
-                        ret = -ENOTTY;
+                ret = -ENOTTY;
         }
         unlock_kernel();
         return ret;
diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index 609cafff86bc..5f81ddf71508 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -1872,7 +1872,7 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address,
 
         devid = superio_inw(sioaddr, SIO_REG_MANID);
         if (devid != SIO_FINTEK_ID) {
-                printk(KERN_INFO DRVNAME ": Not a Fintek device\n");
+                pr_debug(DRVNAME ": Not a Fintek device\n");
                 goto exit;
         }
 
@@ -1932,7 +1932,7 @@ static int __init f71882fg_device_add(unsigned short address,
         res.name = f71882fg_pdev->name;
         err = acpi_check_resource_conflict(&res);
         if (err)
-                return err;
+                goto exit_device_put;
 
         err = platform_device_add_resources(f71882fg_pdev, &res, 1);
         if (err) {
diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c
index abf4dfc8ec22..29c83b5b9697 100644
--- a/drivers/hwmon/hp_accel.c
+++ b/drivers/hwmon/hp_accel.c
@@ -166,6 +166,18 @@ static struct axis_conversion lis3lv02d_axis_xy_swap_yz_inverted = {2, -1, -3};
         },                                              \
         .driver_data = &lis3lv02d_axis_##_axis          \
 }
+
+#define AXIS_DMI_MATCH2(_ident, _class1, _name1,        \
+                                _class2, _name2,        \
+                                _axis) {                \
+        .ident = _ident,                                \
+        .callback = lis3lv02d_dmi_matched,              \
+        .matches = {                                    \
+                DMI_MATCH(DMI_##_class1, _name1),       \
+                DMI_MATCH(DMI_##_class2, _name2),       \
+        },                                              \
+        .driver_data = &lis3lv02d_axis_##_axis          \
+}
 static struct dmi_system_id lis3lv02d_dmi_ids[] = {
         /* product names are truncated to match all kinds of a same model */
         AXIS_DMI_MATCH("NC64x0", "HP Compaq nc64", x_inverted),
@@ -179,6 +191,16 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = {
         AXIS_DMI_MATCH("NC673x", "HP Compaq 673", xy_rotated_left_usd),
         AXIS_DMI_MATCH("NC651xx", "HP Compaq 651", xy_rotated_right),
         AXIS_DMI_MATCH("NC671xx", "HP Compaq 671", xy_swap_yz_inverted),
+        /* Intel-based HP Pavilion dv5 */
+        AXIS_DMI_MATCH2("HPDV5_I",
+                        PRODUCT_NAME, "HP Pavilion dv5",
+                        BOARD_NAME, "3603",
+                        x_inverted),
+        /* AMD-based HP Pavilion dv5 */
+        AXIS_DMI_MATCH2("HPDV5_A",
+                        PRODUCT_NAME, "HP Pavilion dv5",
+                        BOARD_NAME, "3600",
+                        y_inverted),
         { NULL, }
 /* Laptop models without axis info (yet):
  * "NC6910" "HP Compaq 6910"
@@ -213,9 +235,49 @@ static struct delayed_led_classdev hpled_led = {
         .set_brightness = hpled_set,
 };
 
+static acpi_status
+lis3lv02d_get_resource(struct acpi_resource *resource, void *context)
+{
+        if (resource->type == ACPI_RESOURCE_TYPE_EXTENDED_IRQ) {
+                struct acpi_resource_extended_irq *irq;
+                u32 *device_irq = context;
+
+                irq = &resource->data.extended_irq;
+                *device_irq = irq->interrupts[0];
+        }
+
+        return AE_OK;
+}
+
+static void lis3lv02d_enum_resources(struct acpi_device *device)
+{
+        acpi_status status;
+
+        status = acpi_walk_resources(device->handle, METHOD_NAME__CRS,
+                                        lis3lv02d_get_resource, &adev.irq);
+        if (ACPI_FAILURE(status))
+                printk(KERN_DEBUG DRIVER_NAME ": Error getting resources\n");
+}
+
+static s16 lis3lv02d_read_16(acpi_handle handle, int reg)
+{
+        u8 lo, hi;
+
+        adev.read(handle, reg - 1, &lo);
+        adev.read(handle, reg, &hi);
+        /* In "12 bit right justified" mode, bit 6, bit 7, bit 8 = bit 5 */
+        return (s16)((hi << 8) | lo);
+}
+
+static s16 lis3lv02d_read_8(acpi_handle handle, int reg)
+{
+        s8 lo;
+        adev.read(handle, reg, &lo);
+        return lo;
+}
+
 static int lis3lv02d_add(struct acpi_device *device)
 {
-        u8 val;
         int ret;
 
         if (!device)
@@ -229,10 +291,22 @@ static int lis3lv02d_add(struct acpi_device *device)
         strcpy(acpi_device_class(device), ACPI_MDPS_CLASS);
         device->driver_data = &adev;
 
-        lis3lv02d_acpi_read(device->handle, WHO_AM_I, &val);
-        if ((val != LIS3LV02DL_ID) && (val != LIS302DL_ID)) {
+        lis3lv02d_acpi_read(device->handle, WHO_AM_I, &adev.whoami);
+        switch (adev.whoami) {
+        case LIS_DOUBLE_ID:
+                printk(KERN_INFO DRIVER_NAME ": 2-byte sensor found\n");
+                adev.read_data = lis3lv02d_read_16;
+                adev.mdps_max_val = 2048;
+                break;
+        case LIS_SINGLE_ID:
+                printk(KERN_INFO DRIVER_NAME ": 1-byte sensor found\n");
+                adev.read_data = lis3lv02d_read_8;
+                adev.mdps_max_val = 128;
+                break;
+        default:
                 printk(KERN_ERR DRIVER_NAME
-                                ": Accelerometer chip not LIS3LV02D{L,Q}\n");
+                        ": unknown sensor type 0x%X\n", adev.whoami);
+                return -EINVAL;
         }
 
         /* If possible use a "standard" axes order */
@@ -247,6 +321,9 @@ static int lis3lv02d_add(struct acpi_device *device)
         if (ret)
                 return ret;
 
+        /* obtain IRQ number of our device from ACPI */
+        lis3lv02d_enum_resources(adev.device);
+
         ret = lis3lv02d_init_device(&adev);
         if (ret) {
                 flush_work(&hpled_led.work);
diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c
index 219d2d0d5a62..8bb2158f0453 100644
--- a/drivers/hwmon/lis3lv02d.c
+++ b/drivers/hwmon/lis3lv02d.c
@@ -3,7 +3,7 @@
  *
  *  Copyright (C) 2007-2008 Yan Burman
  *  Copyright (C) 2008 Eric Piel
- *  Copyright (C) 2008 Pavel Machek
+ *  Copyright (C) 2008-2009 Pavel Machek
  *
  *  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
@@ -35,6 +35,7 @@
 #include <linux/poll.h>
 #include <linux/freezer.h>
 #include <linux/uaccess.h>
+#include <linux/miscdevice.h>
 #include <acpi/acpi_drivers.h>
 #include <asm/atomic.h>
 #include "lis3lv02d.h"
@@ -52,24 +53,14 @@
  * joystick.
  */
 
-/* Maximum value our axis may get for the input device (signed 12 bits) */
-#define MDPS_MAX_VAL 2048
+struct acpi_lis3lv02d adev = {
+        .misc_wait   = __WAIT_QUEUE_HEAD_INITIALIZER(adev.misc_wait),
+};
 
-struct acpi_lis3lv02d adev;
 EXPORT_SYMBOL_GPL(adev);
 
 static int lis3lv02d_add_fs(struct acpi_device *device);
 
-static s16 lis3lv02d_read_16(acpi_handle handle, int reg)
-{
-        u8 lo, hi;
-
-        adev.read(handle, reg, &lo);
-        adev.read(handle, reg + 1, &hi);
-        /* In "12 bit right justified" mode, bit 6, bit 7, bit 8 = bit 5 */
-        return (s16)((hi << 8) | lo);
-}
-
 /**
  * lis3lv02d_get_axis - For the given axis, give the value converted
  * @axis:      1,2,3 - can also be negative
@@ -98,9 +89,9 @@ static void lis3lv02d_get_xyz(acpi_handle handle, int *x, int *y, int *z)
 {
         int position[3];
 
-        position[0] = lis3lv02d_read_16(handle, OUTX_L);
-        position[1] = lis3lv02d_read_16(handle, OUTY_L);
-        position[2] = lis3lv02d_read_16(handle, OUTZ_L);
+        position[0] = adev.read_data(handle, OUTX);
+        position[1] = adev.read_data(handle, OUTY);
+        position[2] = adev.read_data(handle, OUTZ);
 
         *x = lis3lv02d_get_axis(adev.ac.x, position);
         *y = lis3lv02d_get_axis(adev.ac.y, position);
@@ -110,26 +101,13 @@ static void lis3lv02d_get_xyz(acpi_handle handle, int *x, int *y, int *z)
 void lis3lv02d_poweroff(acpi_handle handle)
 {
         adev.is_on = 0;
-        /* disable X,Y,Z axis and power down */
-        adev.write(handle, CTRL_REG1, 0x00);
 }
 EXPORT_SYMBOL_GPL(lis3lv02d_poweroff);
 
 void lis3lv02d_poweron(acpi_handle handle)
 {
-        u8 val;
-
         adev.is_on = 1;
         adev.init(handle);
-        adev.write(handle, FF_WU_CFG, 0);
-        /*
-         * BDU: LSB and MSB values are not updated until both have been read.
-         *      So the value read will always be correct.
-         * IEN: Interrupt for free-fall and DD, not for data-ready.
-         */
-        adev.read(handle, CTRL_REG2, &val);
-        val |= CTRL2_BDU | CTRL2_IEN;
-        adev.write(handle, CTRL_REG2, val);
 }
 EXPORT_SYMBOL_GPL(lis3lv02d_poweron);
 
@@ -162,6 +140,140 @@ static void lis3lv02d_decrease_use(struct acpi_lis3lv02d *dev)
         mutex_unlock(&dev->lock);
 }
 
+static irqreturn_t lis302dl_interrupt(int irq, void *dummy)
+{
+        /*
+         * Be careful: on some HP laptops the bios force DD when on battery and
+         * the lid is closed. This leads to interrupts as soon as a little move
+         * is done.
+         */
+        atomic_inc(&adev.count);
+
+        wake_up_interruptible(&adev.misc_wait);
+        kill_fasync(&adev.async_queue, SIGIO, POLL_IN);
+        return IRQ_HANDLED;
+}
+
+static int lis3lv02d_misc_open(struct inode *inode, struct file *file)
+{
+        int ret;
+
+        if (test_and_set_bit(0, &adev.misc_opened))
+                return -EBUSY; /* already open */
+
+        atomic_set(&adev.count, 0);
+
+        /*
+         * The sensor can generate interrupts for free-fall and direction
+         * detection (distinguishable with FF_WU_SRC and DD_SRC) but to keep
+         * the things simple and _fast_ we activate it only for free-fall, so
+         * no need to read register (very slow with ACPI). For the same reason,
+         * we forbid shared interrupts.
+         *
+         * IRQF_TRIGGER_RISING seems pointless on HP laptops because the
+         * io-apic is not configurable (and generates a warning) but I keep it
+         * in case of support for other hardware.
+         */
+        ret = request_irq(adev.irq, lis302dl_interrupt, IRQF_TRIGGER_RISING,
+                          DRIVER_NAME, &adev);
+
+        if (ret) {
+                clear_bit(0, &adev.misc_opened);
+                printk(KERN_ERR DRIVER_NAME ": IRQ%d allocation failed\n", adev.irq);
+                return -EBUSY;
+        }
+        lis3lv02d_increase_use(&adev);
+        printk("lis3: registered interrupt %d\n", adev.irq);
+        return 0;
+}
+
+static int lis3lv02d_misc_release(struct inode *inode, struct file *file)
+{
+        fasync_helper(-1, file, 0, &adev.async_queue);
+        lis3lv02d_decrease_use(&adev);
+        free_irq(adev.irq, &adev);
+        clear_bit(0, &adev.misc_opened); /* release the device */
+        return 0;
+}
+
+static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
+                                size_t count, loff_t *pos)
+{
+        DECLARE_WAITQUEUE(wait, current);
+        u32 data;
+        unsigned char byte_data;
+        ssize_t retval = 1;
+
+        if (count < 1)
+                return -EINVAL;
+
+        add_wait_queue(&adev.misc_wait, &wait);
+        while (true) {
+                set_current_state(TASK_INTERRUPTIBLE);
+                data = atomic_xchg(&adev.count, 0);
+                if (data)
+                        break;
+
+                if (file->f_flags & O_NONBLOCK) {
+                        retval = -EAGAIN;
+                        goto out;
+                }
+
+                if (signal_pending(current)) {
+                        retval = -ERESTARTSYS;
+                        goto out;
+                }
+
+                schedule();
+        }
+
+        if (data < 255)
+                byte_data = data;
+        else
+                byte_data = 255;
+
+        /* make sure we are not going into copy_to_user() with
+         * TASK_INTERRUPTIBLE state */
+        set_current_state(TASK_RUNNING);
+        if (copy_to_user(buf, &byte_data, sizeof(byte_data)))
+                retval = -EFAULT;
+
+out:
+        __set_current_state(TASK_RUNNING);
+        remove_wait_queue(&adev.misc_wait, &wait);
+
+        return retval;
+}
+
+static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait)
+{
+        poll_wait(file, &adev.misc_wait, wait);
+        if (atomic_read(&adev.count))
+                return POLLIN | POLLRDNORM;
+        return 0;
+}
+
+static int lis3lv02d_misc_fasync(int fd, struct file *file, int on)
+{
+        return fasync_helper(fd, file, on, &adev.async_queue);
+}
+
+static const struct file_operations lis3lv02d_misc_fops = {
+        .owner   = THIS_MODULE,
+        .llseek  = no_llseek,
+        .read    = lis3lv02d_misc_read,
+        .open    = lis3lv02d_misc_open,
+        .release = lis3lv02d_misc_release,
+        .poll    = lis3lv02d_misc_poll,
+        .fasync  = lis3lv02d_misc_fasync,
+};
+
+static struct miscdevice lis3lv02d_misc_device = {
+        .minor   = MISC_DYNAMIC_MINOR,
+        .name    = "freefall",
+        .fops    = &lis3lv02d_misc_fops,
+};
+
 /**
  * lis3lv02d_joystick_kthread - Kthread polling function
  * @data: unused - here to conform to threadfn prototype
@@ -203,7 +315,6 @@ static void lis3lv02d_joystick_close(struct input_dev *input)
         lis3lv02d_decrease_use(&adev);
 }
 
-
 static inline void lis3lv02d_calibrate_joystick(void)
 {
         lis3lv02d_get_xyz(adev.device->handle, &adev.xcalib, &adev.ycalib, &adev.zcalib);
@@ -231,9 +342,9 @@ int lis3lv02d_joystick_enable(void)
         adev.idev->close      = lis3lv02d_joystick_close;
 
         set_bit(EV_ABS, adev.idev->evbit);
-        input_set_abs_params(adev.idev, ABS_X, -MDPS_MAX_VAL, MDPS_MAX_VAL, 3, 3);
-        input_set_abs_params(adev.idev, ABS_Y, -MDPS_MAX_VAL, MDPS_MAX_VAL, 3, 3);
-        input_set_abs_params(adev.idev, ABS_Z, -MDPS_MAX_VAL, MDPS_MAX_VAL, 3, 3);
+        input_set_abs_params(adev.idev, ABS_X, -adev.mdps_max_val, adev.mdps_max_val, 3, 3);
+        input_set_abs_params(adev.idev, ABS_Y, -adev.mdps_max_val, adev.mdps_max_val, 3, 3);
+        input_set_abs_params(adev.idev, ABS_Z, -adev.mdps_max_val, adev.mdps_max_val, 3, 3);
 
         err = input_register_device(adev.idev);
         if (err) {
@@ -250,6 +361,7 @@ void lis3lv02d_joystick_disable(void)
         if (!adev.idev)
                 return;
 
+        misc_deregister(&lis3lv02d_misc_device);
         input_unregister_device(adev.idev);
         adev.idev = NULL;
 }
@@ -268,6 +380,19 @@ int lis3lv02d_init_device(struct acpi_lis3lv02d *dev)
         if (lis3lv02d_joystick_enable())
                 printk(KERN_ERR DRIVER_NAME ": joystick initialization failed\n");
 
+        printk("lis3_init_device: irq %d\n", dev->irq);
+
+        /* if we did not get an IRQ from ACPI - we have nothing more to do */
+        if (!dev->irq) {
+                printk(KERN_ERR DRIVER_NAME
+                        ": No IRQ in ACPI. Disabling /dev/freefall\n");
+                goto out;
+        }
+
+        printk("lis3: registering device\n");
+        if (misc_register(&lis3lv02d_misc_device))
+                printk(KERN_ERR DRIVER_NAME ": misc_register failed\n");
+out:
         lis3lv02d_decrease_use(dev);
         return 0;
 }
@@ -351,6 +476,6 @@ int lis3lv02d_remove_fs(void)
 EXPORT_SYMBOL_GPL(lis3lv02d_remove_fs);
 
 MODULE_DESCRIPTION("ST LIS3LV02Dx three-axis digital accelerometer driver");
-MODULE_AUTHOR("Yan Burman and Eric Piel");
+MODULE_AUTHOR("Yan Burman, Eric Piel, Pavel Machek");
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h
index 223f1c0763bb..75972bf372ff 100644
--- a/drivers/hwmon/lis3lv02d.h
+++ b/drivers/hwmon/lis3lv02d.h
@@ -22,12 +22,15 @@
 /*
  * The actual chip is STMicroelectronics LIS3LV02DL or LIS3LV02DQ that seems to
  * be connected via SPI. There exists also several similar chips (such as LIS302DL or
- * LIS3L02DQ) but not in the HP laptops and they have slightly different registers.
+ * LIS3L02DQ) and they have slightly different registers, but we can provide a
+ * common interface for all of them.
  * They can also be connected via I²C.
  */
 
-#define LIS3LV02DL_ID   0x3A /* Also the LIS3LV02DQ */
-#define LIS302DL_ID     0x3B /* Also the LIS202DL! */
+/* 2-byte registers */
+#define LIS_DOUBLE_ID   0x3A /* LIS3LV02D[LQ] */
+/* 1-byte registers */
+#define LIS_SINGLE_ID   0x3B /* LIS[32]02DL and others */
 
 enum lis3lv02d_reg {
         WHO_AM_I        = 0x0F,
@@ -44,10 +47,13 @@ enum lis3lv02d_reg {
         STATUS_REG      = 0x27,
         OUTX_L          = 0x28,
         OUTX_H          = 0x29,
+        OUTX            = 0x29,
         OUTY_L          = 0x2A,
         OUTY_H          = 0x2B,
+        OUTY            = 0x2B,
         OUTZ_L          = 0x2C,
         OUTZ_H          = 0x2D,
+        OUTZ            = 0x2D,
         FF_WU_CFG       = 0x30,
         FF_WU_SRC       = 0x31,
         FF_WU_ACK       = 0x32,
@@ -159,6 +165,10 @@ struct acpi_lis3lv02d {
         acpi_status (*write) (acpi_handle handle, int reg, u8 val);
         acpi_status (*read) (acpi_handle handle, int reg, u8 *ret);
 
+        u8                      whoami;    /* 3Ah: 2-byte registries, 3Bh: 1-byte registries */
+        s16 (*read_data) (acpi_handle handle, int reg);
+        int                     mdps_max_val;
+
         struct input_dev        *idev;     /* input device */
         struct task_struct      *kthread;  /* kthread for input */
         struct mutex            lock;
@@ -170,6 +180,11 @@ struct acpi_lis3lv02d {
         unsigned char           is_on;     /* whether the device is on or off */
         unsigned char           usage;     /* usage counter */
         struct axis_conversion  ac;        /* hw -> logical axis */
+
+        u32                     irq;       /* IRQ number */
+        struct fasync_struct    *async_queue; /* queue for the misc device */
+        wait_queue_head_t       misc_wait; /* Wait queue for the misc device */
+        unsigned long           misc_opened; /* bit0: whether the device is open */
 };
 
 int lis3lv02d_init_device(struct acpi_lis3lv02d *dev);
diff --git a/drivers/hwmon/vt1211.c b/drivers/hwmon/vt1211.c
index b0ce37852281..73f77a9b8b18 100644
--- a/drivers/hwmon/vt1211.c
+++ b/drivers/hwmon/vt1211.c
@@ -1262,7 +1262,7 @@ static int __init vt1211_device_add(unsigned short address)
         res.name = pdev->name;
         err = acpi_check_resource_conflict(&res);
         if (err)
-                goto EXIT;
+                goto EXIT_DEV_PUT;
 
         err = platform_device_add_resources(pdev, &res, 1);
         if (err) {
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index cb808d015361..feae743ba991 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -1548,7 +1548,7 @@ static int __init sensors_w83627ehf_init(void)
 
         err = acpi_check_resource_conflict(&res);
         if (err)
-                goto exit;
+                goto exit_device_put;
 
         err = platform_device_add_resources(pdev, &res, 1);
         if (err) {
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index a34338567a2a..f14813be4eff 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -328,7 +328,7 @@ static void dispatch_io(int rw, unsigned int num_regions,
         struct dpages old_pages = *dp;
 
         if (sync)
-                rw |= (1 << BIO_RW_SYNC);
+                rw |= (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG);
 
         /*
          * For multiple regions we need to be careful to rewind
diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c
index 3073618269ea..0a225da21272 100644
--- a/drivers/md/dm-kcopyd.c
+++ b/drivers/md/dm-kcopyd.c
@@ -344,7 +344,7 @@ static int run_io_job(struct kcopyd_job *job)
 {
         int r;
         struct dm_io_request io_req = {
-                .bi_rw = job->rw | (1 << BIO_RW_SYNC),
+                .bi_rw = job->rw | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG),
                 .mem.type = DM_IO_PAGE_LIST,
                 .mem.ptr.pl = job->pages,
                 .mem.offset = job->offset,
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 4495104f6c9f..03b4cd0a6344 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -474,7 +474,7 @@ void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev,
          * causes ENOTSUPP, we allocate a spare bio...
          */
         struct bio *bio = bio_alloc(GFP_NOIO, 1);
-        int rw = (1<<BIO_RW) | (1<<BIO_RW_SYNC);
+        int rw = (1<<BIO_RW) | (1<<BIO_RW_SYNCIO) | (1<<BIO_RW_UNPLUG);
 
         bio->bi_bdev = rdev->bdev;
         bio->bi_sector = sector;
@@ -531,7 +531,7 @@ int sync_page_io(struct block_device *bdev, sector_t sector, int size,
         struct completion event;
         int ret;
 
-        rw |= (1 << BIO_RW_SYNC);
+        rw |= (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG);
 
         bio->bi_bdev = bdev;
         bio->bi_sector = sector;
diff --git a/drivers/media/common/tuners/tuner-simple.c b/drivers/media/common/tuners/tuner-simple.c
index de7adaf5fa5b..78412c9c424a 100644
--- a/drivers/media/common/tuners/tuner-simple.c
+++ b/drivers/media/common/tuners/tuner-simple.c
@@ -318,7 +318,6 @@ static int simple_std_setup(struct dvb_frontend *fe,
                             u8 *config, u8 *cb)
 {
         struct tuner_simple_priv *priv = fe->tuner_priv;
-        u8 tuneraddr;
         int rc;
 
         /* tv norm specific stuff for multi-norm tuners */
@@ -387,6 +386,7 @@ static int simple_std_setup(struct dvb_frontend *fe,
 
         case TUNER_PHILIPS_TUV1236D:
         {
+                struct tuner_i2c_props i2c = priv->i2c_props;
                 /* 0x40 -> ATSC antenna input 1 */
                 /* 0x48 -> ATSC antenna input 2 */
                 /* 0x00 -> NTSC antenna input 1 */
@@ -398,17 +398,15 @@ static int simple_std_setup(struct dvb_frontend *fe,
                         buffer[1] = 0x04;
                 }
                 /* set to the correct mode (analog or digital) */
-                tuneraddr = priv->i2c_props.addr;
-                priv->i2c_props.addr = 0x0a;
-                rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[0], 2);
+                i2c.addr = 0x0a;
+                rc = tuner_i2c_xfer_send(&i2c, &buffer[0], 2);
                 if (2 != rc)
                         tuner_warn("i2c i/o error: rc == %d "
                                    "(should be 2)\n", rc);
-                rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[2], 2);
+                rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2);
                 if (2 != rc)
                         tuner_warn("i2c i/o error: rc == %d "
                                    "(should be 2)\n", rc);
-                priv->i2c_props.addr = tuneraddr;
                 break;
         }
         }
diff --git a/drivers/media/dvb/dvb-core/dmxdev.c b/drivers/media/dvb/dvb-core/dmxdev.c
index 0c733c66a441..069d847ba887 100644
--- a/drivers/media/dvb/dvb-core/dmxdev.c
+++ b/drivers/media/dvb/dvb-core/dmxdev.c
@@ -364,16 +364,15 @@ static int dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len,
                                        enum dmx_success success)
 {
         struct dmxdev_filter *dmxdevfilter = filter->priv;
-        unsigned long flags;
         int ret;
 
         if (dmxdevfilter->buffer.error) {
                 wake_up(&dmxdevfilter->buffer.queue);
                 return 0;
         }
-        spin_lock_irqsave(&dmxdevfilter->dev->lock, flags);
+        spin_lock(&dmxdevfilter->dev->lock);
         if (dmxdevfilter->state != DMXDEV_STATE_GO) {
-                spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags);
+                spin_unlock(&dmxdevfilter->dev->lock);
                 return 0;
         }
         del_timer(&dmxdevfilter->timer);
@@ -392,7 +391,7 @@ static int dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len,
         }
         if (dmxdevfilter->params.sec.flags & DMX_ONESHOT)
                 dmxdevfilter->state = DMXDEV_STATE_DONE;
-        spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags);
+        spin_unlock(&dmxdevfilter->dev->lock);
         wake_up(&dmxdevfilter->buffer.queue);
         return 0;
 }
@@ -404,12 +403,11 @@ static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len,
 {
         struct dmxdev_filter *dmxdevfilter = feed->priv;
         struct dvb_ringbuffer *buffer;
-        unsigned long flags;
         int ret;
 
-        spin_lock_irqsave(&dmxdevfilter->dev->lock, flags);
+        spin_lock(&dmxdevfilter->dev->lock);
         if (dmxdevfilter->params.pes.output == DMX_OUT_DECODER) {
-                spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags);
+                spin_unlock(&dmxdevfilter->dev->lock);
                 return 0;
         }
 
@@ -419,7 +417,7 @@ static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len,
         else
                 buffer = &dmxdevfilter->dev->dvr_buffer;
         if (buffer->error) {
-                spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags);
+                spin_unlock(&dmxdevfilter->dev->lock);
                 wake_up(&buffer->queue);
                 return 0;
         }
@@ -430,7 +428,7 @@ static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len,
                 dvb_ringbuffer_flush(buffer);
                 buffer->error = ret;
         }
-        spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags);
+        spin_unlock(&dmxdevfilter->dev->lock);
         wake_up(&buffer->queue);
         return 0;
 }
diff --git a/drivers/media/dvb/dvb-core/dvb_demux.c b/drivers/media/dvb/dvb-core/dvb_demux.c
index a2c1fd5d2f67..e2eca0b1fe7c 100644
--- a/drivers/media/dvb/dvb-core/dvb_demux.c
+++ b/drivers/media/dvb/dvb-core/dvb_demux.c
@@ -399,9 +399,7 @@ static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf)
 void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf,
                               size_t count)
 {
-        unsigned long flags;
-
-        spin_lock_irqsave(&demux->lock, flags);
+        spin_lock(&demux->lock);
 
         while (count--) {
                 if (buf[0] == 0x47)
@@ -409,17 +407,16 @@ void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf,
                 buf += 188;
         }
 
-        spin_unlock_irqrestore(&demux->lock, flags);
+        spin_unlock(&demux->lock);
 }
 
 EXPORT_SYMBOL(dvb_dmx_swfilter_packets);
 
 void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count)
 {
-        unsigned long flags;
         int p = 0, i, j;
 
-        spin_lock_irqsave(&demux->lock, flags);
+        spin_lock(&demux->lock);
 
         if (demux->tsbufp) {
                 i = demux->tsbufp;
@@ -452,18 +449,17 @@ void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count)
         }
 
 bailout:
-        spin_unlock_irqrestore(&demux->lock, flags);
+        spin_unlock(&demux->lock);
 }
 
 EXPORT_SYMBOL(dvb_dmx_swfilter);
 
 void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf, size_t count)
 {
-        unsigned long flags;
         int p = 0, i, j;
         u8 tmppack[188];
 
-        spin_lock_irqsave(&demux->lock, flags);
+        spin_lock(&demux->lock);
 
         if (demux->tsbufp) {
                 i = demux->tsbufp;
@@ -504,7 +500,7 @@ void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf, size_t count)
         }
 
 bailout:
-        spin_unlock_irqrestore(&demux->lock, flags);
+        spin_unlock(&demux->lock);
 }
 
 EXPORT_SYMBOL(dvb_dmx_swfilter_204);
diff --git a/drivers/media/radio/radio-si470x.c b/drivers/media/radio/radio-si470x.c
index 67cbce82cb91..4dfed6aa2dbc 100644
--- a/drivers/media/radio/radio-si470x.c
+++ b/drivers/media/radio/radio-si470x.c
@@ -98,11 +98,16 @@
  *              - blacklisted KWorld radio in hid-core.c and hid-ids.h
  * 2008-12-03   Mark Lord <mlord@pobox.com>
  *              - add support for DealExtreme USB Radio
+ * 2009-01-31   Bob Ross <pigiron@gmx.com>
+ *              - correction of stereo detection/setting
+ *              - correction of signal strength indicator scaling
+ * 2009-01-31   Rick Bronson <rick@efn.org>
+ *              Tobias Lorenz <tobias.lorenz@gmx.net>
+ *              - add LED status output
  *
  * ToDo:
  * - add firmware download/update support
  * - RDS support: interrupt mode, instead of polling
- * - add LED status output (check if that's not already done in firmware)
  */
 
 
@@ -882,6 +887,30 @@ static int si470x_rds_on(struct si470x_device *radio)
 
 
 /**************************************************************************
+ * General Driver Functions - LED_REPORT
+ **************************************************************************/
+
+/*
+ * si470x_set_led_state - sets the led state
+ */
+static int si470x_set_led_state(struct si470x_device *radio,
+                unsigned char led_state)
+{
+        unsigned char buf[LED_REPORT_SIZE];
+        int retval;
+
+        buf[0] = LED_REPORT;
+        buf[1] = LED_COMMAND;
+        buf[2] = led_state;
+
+        retval = si470x_set_report(radio, (void *) &buf, sizeof(buf));
+
+        return (retval < 0) ? -EINVAL : 0;
+}
+
+
+
+/**************************************************************************
  * RDS Driver Functions
  **************************************************************************/
 
@@ -1385,20 +1414,22 @@ static int si470x_vidioc_g_tuner(struct file *file, void *priv,
         };
 
         /* stereo indicator == stereo (instead of mono) */
-        if ((radio->registers[STATUSRSSI] & STATUSRSSI_ST) == 1)
-                tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
-        else
+        if ((radio->registers[STATUSRSSI] & STATUSRSSI_ST) == 0)
                 tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
+        else
+                tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
 
         /* mono/stereo selector */
-        if ((radio->registers[POWERCFG] & POWERCFG_MONO) == 1)
-                tuner->audmode = V4L2_TUNER_MODE_MONO;
-        else
+        if ((radio->registers[POWERCFG] & POWERCFG_MONO) == 0)
                 tuner->audmode = V4L2_TUNER_MODE_STEREO;
+        else
+                tuner->audmode = V4L2_TUNER_MODE_MONO;
 
         /* min is worst, max is best; signal:0..0xffff; rssi: 0..0xff */
-        tuner->signal = (radio->registers[STATUSRSSI] & STATUSRSSI_RSSI)
-                                * 0x0101;
+        /* measured in units of dbµV in 1 db increments (max at ~75 dbµV) */
+        tuner->signal = (radio->registers[STATUSRSSI] & STATUSRSSI_RSSI);
+        /* the ideal factor is 0xffff/75 = 873,8 */
+        tuner->signal = (tuner->signal * 873) + (8 * tuner->signal / 10);
 
         /* automatic frequency control: -1: freq to low, 1 freq to high */
         /* AFCRL does only indicate that freq. differs, not if too low/high */
@@ -1632,6 +1663,9 @@ static int si470x_usb_driver_probe(struct usb_interface *intf,
         /* set initial frequency */
         si470x_set_freq(radio, 87.5 * FREQ_MUL); /* available in all regions */
 
+        /* set led to connect state */
+        si470x_set_led_state(radio, BLINK_GREEN_LED);
+
         /* rds buffer allocation */
         radio->buf_size = rds_buf * 3;
         radio->buffer = kmalloc(radio->buf_size, GFP_KERNEL);
@@ -1715,6 +1749,9 @@ static void si470x_usb_driver_disconnect(struct usb_interface *intf)
         cancel_delayed_work_sync(&radio->work);
         usb_set_intfdata(intf, NULL);
         if (radio->users == 0) {
+                /* set led to disconnect state */
+                si470x_set_led_state(radio, BLINK_ORANGE_LED);
+
                 video_unregister_device(radio->videodev);
                 kfree(radio->buffer);
                 kfree(radio);
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 2ed24527ecd6..65e4901f4db7 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -422,6 +422,7 @@ static void destroy_urbs(struct gspca_dev *gspca_dev)
                 if (urb == NULL)
                         break;
 
+                BUG_ON(!gspca_dev->dev);
                 gspca_dev->urb[i] = NULL;
                 if (!gspca_dev->present)
                         usb_kill_urb(urb);
@@ -1950,8 +1951,12 @@ void gspca_disconnect(struct usb_interface *intf)
 {
         struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
 
+        mutex_lock(&gspca_dev->usb_lock);
         gspca_dev->present = 0;
+        mutex_unlock(&gspca_dev->usb_lock);
 
+        destroy_urbs(gspca_dev);
+        gspca_dev->dev = NULL;
         usb_set_intfdata(intf, NULL);
 
         /* release the device */
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c
index f6b3ef6e691b..c13bd2aa0bea 100644
--- a/drivers/media/video/ivtv/ivtv-ioctl.c
+++ b/drivers/media/video/ivtv/ivtv-ioctl.c
@@ -393,7 +393,7 @@ static int ivtv_g_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_fo
                 return 0;
         }
 
-        v4l2_subdev_call(itv->sd_video, video, s_fmt, fmt);
+        v4l2_subdev_call(itv->sd_video, video, g_fmt, fmt);
         vbifmt->service_set = ivtv_get_service_set(vbifmt);
         return 0;
 }
@@ -1748,6 +1748,18 @@ static long ivtv_default(struct file *file, void *fh, int cmd, void *arg)
                 break;
         }
 
+        case IVTV_IOC_DMA_FRAME:
+        case VIDEO_GET_PTS:
+        case VIDEO_GET_FRAME_COUNT:
+        case VIDEO_GET_EVENT:
+        case VIDEO_PLAY:
+        case VIDEO_STOP:
+        case VIDEO_FREEZE:
+        case VIDEO_CONTINUE:
+        case VIDEO_COMMAND:
+        case VIDEO_TRY_COMMAND:
+                return ivtv_decoder_ioctls(file, cmd, (void *)arg);
+
         default:
                 return -EINVAL;
         }
@@ -1790,18 +1802,6 @@ static long ivtv_serialized_ioctl(struct ivtv *itv, struct file *filp,
                 ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
                 return 0;
 
-        case IVTV_IOC_DMA_FRAME:
-        case VIDEO_GET_PTS:
-        case VIDEO_GET_FRAME_COUNT:
-        case VIDEO_GET_EVENT:
-        case VIDEO_PLAY:
-        case VIDEO_STOP:
-        case VIDEO_FREEZE:
-        case VIDEO_CONTINUE:
-        case VIDEO_COMMAND:
-        case VIDEO_TRY_COMMAND:
-                return ivtv_decoder_ioctls(filp, cmd, (void *)arg);
-
         default:
                 break;
         }
diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c
index 1a4d04664d6d..aa266e1f69b2 100644
--- a/drivers/mfd/htc-egpio.c
+++ b/drivers/mfd/htc-egpio.c
@@ -286,7 +286,7 @@ static int __init egpio_probe(struct platform_device *pdev)
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!res)
                 goto fail;
-        ei->base_addr = ioremap_nocache(res->start, res->end - res->start);
+        ei->base_addr = ioremap_nocache(res->start, resource_size(res));
         if (!ei->base_addr)
                 goto fail;
         pr_debug("EGPIO phys=%08x virt=%p\n", (u32)res->start, ei->base_addr);
@@ -307,7 +307,7 @@ static int __init egpio_probe(struct platform_device *pdev)
 
         ei->nchips = pdata->num_chips;
         ei->chip = kzalloc(sizeof(struct egpio_chip) * ei->nchips, GFP_KERNEL);
-        if (!ei) {
+        if (!ei->chip) {
                 ret = -ENOMEM;
                 goto fail;
         }
diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
index ea9488e7ad6d..2e36057659e1 100644
--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -678,6 +678,7 @@ static int __devexit pcf50633_remove(struct i2c_client *client)
 
 static struct i2c_device_id pcf50633_id_table[] = {
         {"pcf50633", 0x73},
+        {/* end of list */}
 };
 
 static struct i2c_driver pcf50633_driver = {
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 0e5761f12634..4c7b7962f6b8 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -1050,7 +1050,7 @@ static int __devinit sm501_gpio_register_chip(struct sm501_devdata *sm,
         return gpiochip_add(gchip);
 }
 
-static int sm501_register_gpio(struct sm501_devdata *sm)
+static int __devinit sm501_register_gpio(struct sm501_devdata *sm)
 {
         struct sm501_gpio *gpio = &sm->gpio;
         resource_size_t iobase = sm->io_res->start + SM501_GPIO;
@@ -1321,7 +1321,7 @@ static unsigned int sm501_mem_local[] = {
  * Common init code for an SM501
 */
 
-static int sm501_init_dev(struct sm501_devdata *sm)
+static int __devinit sm501_init_dev(struct sm501_devdata *sm)
 {
         struct sm501_initdata *idata;
         struct sm501_platdata *pdata;
@@ -1397,7 +1397,7 @@ static int sm501_init_dev(struct sm501_devdata *sm)
         return 0;
 }
 
-static int sm501_plat_probe(struct platform_device *dev)
+static int __devinit sm501_plat_probe(struct platform_device *dev)
 {
         struct sm501_devdata *sm;
         int ret;
@@ -1586,8 +1586,8 @@ static struct sm501_platdata sm501_pci_platdata = {
         .gpio_base      = -1,
 };
 
-static int sm501_pci_probe(struct pci_dev *dev,
-                           const struct pci_device_id *id)
+static int __devinit sm501_pci_probe(struct pci_dev *dev,
+                                     const struct pci_device_id *id)
 {
         struct sm501_devdata *sm;
         int err;
@@ -1693,7 +1693,7 @@ static void sm501_dev_remove(struct sm501_devdata *sm)
         sm501_gpio_remove(sm);
 }
 
-static void sm501_pci_remove(struct pci_dev *dev)
+static void __devexit sm501_pci_remove(struct pci_dev *dev)
 {
         struct sm501_devdata *sm = pci_get_drvdata(dev);
 
@@ -1727,16 +1727,16 @@ static struct pci_device_id sm501_pci_tbl[] = {
 
 MODULE_DEVICE_TABLE(pci, sm501_pci_tbl);
 
-static struct pci_driver sm501_pci_drv = {
+static struct pci_driver sm501_pci_driver = {
         .name           = "sm501",
         .id_table       = sm501_pci_tbl,
         .probe          = sm501_pci_probe,
-        .remove         = sm501_pci_remove,
+        .remove         = __devexit_p(sm501_pci_remove),
 };
 
 MODULE_ALIAS("platform:sm501");
 
-static struct platform_driver sm501_plat_drv = {
+static struct platform_driver sm501_plat_driver = {
         .driver         = {
                 .name   = "sm501",
                 .owner  = THIS_MODULE,
@@ -1749,14 +1749,14 @@ static struct platform_driver sm501_plat_drv = {
 
 static int __init sm501_base_init(void)
 {
-        platform_driver_register(&sm501_plat_drv);
-        return pci_register_driver(&sm501_pci_drv);
+        platform_driver_register(&sm501_plat_driver);
+        return pci_register_driver(&sm501_pci_driver);
 }
 
 static void __exit sm501_base_exit(void)
 {
-        platform_driver_unregister(&sm501_plat_drv);
-        pci_unregister_driver(&sm501_pci_drv);
+        platform_driver_unregister(&sm501_plat_driver);
+        pci_unregister_driver(&sm501_pci_driver);
 }
 
 module_init(sm501_base_init);
diff --git a/drivers/mfd/twl4030-core.c b/drivers/mfd/twl4030-core.c
index e7ab0035d305..68826f1e36bc 100644
--- a/drivers/mfd/twl4030-core.c
+++ b/drivers/mfd/twl4030-core.c
@@ -38,7 +38,7 @@
 #include <linux/i2c.h>
 #include <linux/i2c/twl4030.h>
 
-#ifdef CONFIG_ARM
+#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
 #include <mach/cpu.h>
 #endif
 
diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index f92595c8f165..84d5ea1ec171 100644
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -1111,7 +1111,7 @@ int wm8350_read_auxadc(struct wm8350 *wm8350, int channel, int scale, int vref)
         do {
                 schedule_timeout_interruptible(1);
                 reg = wm8350_reg_read(wm8350, WM8350_DIGITISER_CONTROL_1);
-        } while (tries-- && (reg & WM8350_AUXADC_POLL));
+        } while (--tries && (reg & WM8350_AUXADC_POLL));
 
         if (!tries)
                 dev_err(wm8350->dev, "adc chn %d read timeout\n", channel);
@@ -1297,14 +1297,29 @@ static void wm8350_client_dev_register(struct wm8350 *wm8350,
 int wm8350_device_init(struct wm8350 *wm8350, int irq,
                        struct wm8350_platform_data *pdata)
 {
-        int ret = -EINVAL;
+        int ret;
         u16 id1, id2, mask_rev;
         u16 cust_id, mode, chip_rev;
 
         /* get WM8350 revision and config mode */
-        wm8350->read_dev(wm8350, WM8350_RESET_ID, sizeof(id1), &id1);
-        wm8350->read_dev(wm8350, WM8350_ID, sizeof(id2), &id2);
-        wm8350->read_dev(wm8350, WM8350_REVISION, sizeof(mask_rev), &mask_rev);
+        ret = wm8350->read_dev(wm8350, WM8350_RESET_ID, sizeof(id1), &id1);
+        if (ret != 0) {
+                dev_err(wm8350->dev, "Failed to read ID: %d\n", ret);
+                goto err;
+        }
+
+        ret = wm8350->read_dev(wm8350, WM8350_ID, sizeof(id2), &id2);
+        if (ret != 0) {
+                dev_err(wm8350->dev, "Failed to read ID: %d\n", ret);
+                goto err;
+        }
+
+        ret = wm8350->read_dev(wm8350, WM8350_REVISION, sizeof(mask_rev),
+                               &mask_rev);
+        if (ret != 0) {
+                dev_err(wm8350->dev, "Failed to read revision: %d\n", ret);
+                goto err;
+        }
 
         id1 = be16_to_cpu(id1);
         id2 = be16_to_cpu(id2);
@@ -1404,14 +1419,12 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
                 return ret;
         }
 
-        if (pdata && pdata->init) {
-                ret = pdata->init(wm8350);
-                if (ret != 0) {
-                        dev_err(wm8350->dev, "Platform init() failed: %d\n",
-                                ret);
-                        goto err;
-                }
-        }
+        wm8350_reg_write(wm8350, WM8350_SYSTEM_INTERRUPTS_MASK, 0xFFFF);
+        wm8350_reg_write(wm8350, WM8350_INT_STATUS_1_MASK, 0xFFFF);
+        wm8350_reg_write(wm8350, WM8350_INT_STATUS_2_MASK, 0xFFFF);
+        wm8350_reg_write(wm8350, WM8350_UNDER_VOLTAGE_INT_STATUS_MASK, 0xFFFF);
+        wm8350_reg_write(wm8350, WM8350_GPIO_INT_STATUS_MASK, 0xFFFF);
+        wm8350_reg_write(wm8350, WM8350_COMPARATOR_INT_STATUS_MASK, 0xFFFF);
 
         mutex_init(&wm8350->auxadc_mutex);
         mutex_init(&wm8350->irq_mutex);
@@ -1430,6 +1443,15 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
         }
         wm8350->chip_irq = irq;
 
+        if (pdata && pdata->init) {
+                ret = pdata->init(wm8350);
+                if (ret != 0) {
+                        dev_err(wm8350->dev, "Platform init() failed: %d\n",
+                                ret);
+                        goto err;
+                }
+        }
+
         wm8350_reg_write(wm8350, WM8350_SYSTEM_INTERRUPTS_MASK, 0x0);
 
         wm8350_client_dev_register(wm8350, "wm8350-codec",
diff --git a/drivers/mfd/wm8350-regmap.c b/drivers/mfd/wm8350-regmap.c
index 68887b817d17..9a4cc954cb7c 100644
--- a/drivers/mfd/wm8350-regmap.c
+++ b/drivers/mfd/wm8350-regmap.c
@@ -3188,7 +3188,7 @@ const struct wm8350_reg_access wm8350_reg_io_map[] = {
         { 0x7CFF, 0x0C00, 0x7FFF }, /* R1   - ID */
         { 0x0000, 0x0000, 0x0000 }, /* R2 */
         { 0xBE3B, 0xBE3B, 0x8000 }, /* R3   - System Control 1 */
-        { 0xFCF7, 0xFCF7, 0xF800 }, /* R4   - System Control 2 */
+        { 0xFEF7, 0xFEF7, 0xF800 }, /* R4   - System Control 2 */
         { 0x80FF, 0x80FF, 0x8000 }, /* R5   - System Hibernate */
         { 0xFB0E, 0xFB0E, 0x0000 }, /* R6   - Interface Control */
         { 0x0000, 0x0000, 0x0000 }, /* R7 */
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 45b1f430685f..513eb09a638f 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -584,7 +584,7 @@ static int mmc_blk_probe(struct mmc_card *card)
         if (err)
                 goto out;
 
-        string_get_size(get_capacity(md->disk) << 9, STRING_UNITS_2,
+        string_get_size((u64)get_capacity(md->disk) << 9, STRING_UNITS_2,
                         cap_str, sizeof(cap_str));
         printk(KERN_INFO "%s: %s %s %s %s\n",
                 md->disk->disk_name, mmc_card_id(card), mmc_card_name(card),
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index b92b172074ee..b9f1e84897cc 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -494,7 +494,7 @@ static int mmc_test_basic_read(struct mmc_test_card *test)
 
         sg_init_one(&sg, test->buffer, 512);
 
-        ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1);
+        ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0);
         if (ret)
                 return ret;
 
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 76bfe16c09b1..2b1196e6142c 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -1548,9 +1548,10 @@ static bool filter(struct dma_chan *chan, void *slave)
 {
         struct dw_dma_slave *dws = slave;
 
-        if (dws->dma_dev == chan->device->dev)
+        if (dws->dma_dev == chan->device->dev) {
+                chan->private = dws;
                 return true;
-        else
+        } else
                 return false;
 }
 #endif
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index db37490f67ec..a631c81dce12 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -55,6 +55,7 @@
 #define VS30                    (1 << 25)
 #define SDVS18                  (0x5 << 9)
 #define SDVS30                  (0x6 << 9)
+#define SDVS33                  (0x7 << 9)
 #define SDVSCLR                 0xFFFFF1FF
 #define SDVSDET                 0x00000400
 #define AUTOIDLE                0x1
@@ -375,6 +376,32 @@ static void mmc_omap_report_irq(struct mmc_omap_host *host, u32 status)
 }
 #endif  /* CONFIG_MMC_DEBUG */
 
+/*
+ * MMC controller internal state machines reset
+ *
+ * Used to reset command or data internal state machines, using respectively
+ *  SRC or SRD bit of SYSCTL register
+ * Can be called from interrupt context
+ */
+static inline void mmc_omap_reset_controller_fsm(struct mmc_omap_host *host,
+                unsigned long bit)
+{
+        unsigned long i = 0;
+        unsigned long limit = (loops_per_jiffy *
+                                msecs_to_jiffies(MMC_TIMEOUT_MS));
+
+        OMAP_HSMMC_WRITE(host->base, SYSCTL,
+                         OMAP_HSMMC_READ(host->base, SYSCTL) | bit);
+
+        while ((OMAP_HSMMC_READ(host->base, SYSCTL) & bit) &&
+                (i++ < limit))
+                cpu_relax();
+
+        if (OMAP_HSMMC_READ(host->base, SYSCTL) & bit)
+                dev_err(mmc_dev(host->mmc),
+                        "Timeout waiting on controller reset in %s\n",
+                        __func__);
+}
 
 /*
  * MMC controller IRQ handler
@@ -403,21 +430,17 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
                         (status & CMD_CRC)) {
                         if (host->cmd) {
                                 if (status & CMD_TIMEOUT) {
-                                        OMAP_HSMMC_WRITE(host->base, SYSCTL,
-                                                OMAP_HSMMC_READ(host->base,
-                                                                SYSCTL) | SRC);
-                                        while (OMAP_HSMMC_READ(host->base,
-                                                        SYSCTL) & SRC)
-                                                ;
-
+                                        mmc_omap_reset_controller_fsm(host, SRC);
                                         host->cmd->error = -ETIMEDOUT;
                                 } else {
                                         host->cmd->error = -EILSEQ;
                                 }
                                 end_cmd = 1;
                         }
-                        if (host->data)
+                        if (host->data) {
                                 mmc_dma_cleanup(host);
+                                mmc_omap_reset_controller_fsm(host, SRD);
+                        }
                 }
                 if ((status & DATA_TIMEOUT) ||
                         (status & DATA_CRC)) {
@@ -426,12 +449,7 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
                                         mmc_dma_cleanup(host);
                                 else
                                         host->data->error = -EILSEQ;
-                                OMAP_HSMMC_WRITE(host->base, SYSCTL,
-                                        OMAP_HSMMC_READ(host->base,
-                                                        SYSCTL) | SRD);
-                                while (OMAP_HSMMC_READ(host->base,
-                                                SYSCTL) & SRD)
-                                        ;
+                                mmc_omap_reset_controller_fsm(host, SRD);
                                 end_trans = 1;
                         }
                 }
@@ -456,13 +474,20 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
 }
 
 /*
- * Switch MMC operating voltage
+ * Switch MMC interface voltage ... only relevant for MMC1.
+ *
+ * MMC2 and MMC3 use fixed 1.8V levels, and maybe a transceiver.
+ * The MMC2 transceiver controls are used instead of DAT4..DAT7.
+ * Some chips, like eMMC ones, use internal transceivers.
  */
 static int omap_mmc_switch_opcond(struct mmc_omap_host *host, int vdd)
 {
         u32 reg_val = 0;
         int ret;
 
+        if (host->id != OMAP_MMC1_DEVID)
+                return 0;
+
         /* Disable the clocks */
         clk_disable(host->fclk);
         clk_disable(host->iclk);
@@ -485,19 +510,26 @@ static int omap_mmc_switch_opcond(struct mmc_omap_host *host, int vdd)
         OMAP_HSMMC_WRITE(host->base, HCTL,
                 OMAP_HSMMC_READ(host->base, HCTL) & SDVSCLR);
         reg_val = OMAP_HSMMC_READ(host->base, HCTL);
+
         /*
          * If a MMC dual voltage card is detected, the set_ios fn calls
          * this fn with VDD bit set for 1.8V. Upon card removal from the
          * slot, omap_mmc_set_ios sets the VDD back to 3V on MMC_POWER_OFF.
          *
-         * Only MMC1 supports 3.0V.  MMC2 will not function if SDVS30 is
-         * set in HCTL.
+         * Cope with a bit of slop in the range ... per data sheets:
+         *  - "1.8V" for vdds_mmc1/vdds_mmc1a can be up to 2.45V max,
+         *    but recommended values are 1.71V to 1.89V
+         *  - "3.0V" for vdds_mmc1/vdds_mmc1a can be up to 3.5V max,
+         *    but recommended values are 2.7V to 3.3V
+         *
+         * Board setup code shouldn't permit anything very out-of-range.
+         * TWL4030-family VMMC1 and VSIM regulators are fine (avoiding the
+         * middle range) but VSIM can't power DAT4..DAT7 at more than 3V.
          */
-        if (host->id == OMAP_MMC1_DEVID && (((1 << vdd) == MMC_VDD_32_33) ||
-                                ((1 << vdd) == MMC_VDD_33_34)))
-                reg_val |= SDVS30;
-        if ((1 << vdd) == MMC_VDD_165_195)
+        if ((1 << vdd) <= MMC_VDD_23_24)
                 reg_val |= SDVS18;
+        else
+                reg_val |= SDVS30;
 
         OMAP_HSMMC_WRITE(host->base, HCTL, reg_val);
 
@@ -517,16 +549,15 @@ static void mmc_omap_detect(struct work_struct *work)
 {
         struct mmc_omap_host *host = container_of(work, struct mmc_omap_host,
                                                 mmc_carddetect_work);
+        struct omap_mmc_slot_data *slot = &mmc_slot(host);
+
+        host->carddetect = slot->card_detect(slot->card_detect_irq);
 
         sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
         if (host->carddetect) {
                 mmc_detect_change(host->mmc, (HZ * 200) / 1000);
         } else {
-                OMAP_HSMMC_WRITE(host->base, SYSCTL,
-                        OMAP_HSMMC_READ(host->base, SYSCTL) | SRD);
-                while (OMAP_HSMMC_READ(host->base, SYSCTL) & SRD)
-                        ;
-
+                mmc_omap_reset_controller_fsm(host, SRD);
                 mmc_detect_change(host->mmc, (HZ * 50) / 1000);
         }
 }
@@ -538,7 +569,6 @@ static irqreturn_t omap_mmc_cd_handler(int irq, void *dev_id)
 {
         struct mmc_omap_host *host = (struct mmc_omap_host *)dev_id;
 
-        host->carddetect = mmc_slot(host).card_detect(irq);
         schedule_work(&host->mmc_carddetect_work);
 
         return IRQ_HANDLED;
@@ -757,10 +787,14 @@ static void omap_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
         case MMC_POWER_OFF:
                 mmc_slot(host).set_power(host->dev, host->slot_id, 0, 0);
                 /*
-                 * Reset bus voltage to 3V if it got set to 1.8V earlier.
+                 * Reset interface voltage to 3V if it's 1.8V now;
+                 * only relevant on MMC-1, the others always use 1.8V.
+                 *
                  * REVISIT: If we are able to detect cards after unplugging
                  * a 1.8V card, this code should not be needed.
                  */
+                if (host->id != OMAP_MMC1_DEVID)
+                        break;
                 if (!(OMAP_HSMMC_READ(host->base, HCTL) & SDVSDET)) {
                         int vdd = fls(host->mmc->ocr_avail) - 1;
                         if (omap_mmc_switch_opcond(host, vdd) != 0)
@@ -784,7 +818,9 @@ static void omap_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
         }
 
         if (host->id == OMAP_MMC1_DEVID) {
-                /* Only MMC1 can operate at 3V/1.8V */
+                /* Only MMC1 can interface at 3V without some flavor
+                 * of external transceiver; but they all handle 1.8V.
+                 */
                 if ((OMAP_HSMMC_READ(host->base, HCTL) & SDVSDET) &&
                         (ios->vdd == DUAL_VOLT_OCR_BIT)) {
                                 /*
@@ -1137,7 +1173,9 @@ static int omap_mmc_suspend(struct platform_device *pdev, pm_message_t state)
                                                 " level suspend\n");
                         }
 
-                        if (!(OMAP_HSMMC_READ(host->base, HCTL) & SDVSDET)) {
+                        if (host->id == OMAP_MMC1_DEVID
+                                        && !(OMAP_HSMMC_READ(host->base, HCTL)
+                                                        & SDVSDET)) {
                                 OMAP_HSMMC_WRITE(host->base, HCTL,
                                         OMAP_HSMMC_READ(host->base, HCTL)
                                         & SDVSCLR);
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 35a98eec7414..f4a67c65d301 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -329,7 +329,7 @@ static void do_pio_write(struct s3cmci_host *host)
 
         to_ptr = host->base + host->sdidata;
 
-        while ((fifo = fifo_free(host))) {
+        while ((fifo = fifo_free(host)) > 3) {
                 if (!host->pio_bytes) {
                         res = get_data_buffer(host, &host->pio_bytes,
                                                         &host->pio_ptr);
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index f07255cb17ee..8cff5f5e7f86 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -144,8 +144,7 @@ static int jmicron_probe(struct sdhci_pci_chip *chip)
                           SDHCI_QUIRK_32BIT_DMA_SIZE |
                           SDHCI_QUIRK_32BIT_ADMA_SIZE |
                           SDHCI_QUIRK_RESET_AFTER_REQUEST |
-                          SDHCI_QUIRK_BROKEN_SMALL_PIO |
-                          SDHCI_QUIRK_FORCE_HIGHSPEED;
+                          SDHCI_QUIRK_BROKEN_SMALL_PIO;
         }
 
         /*
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 6b2d1f99af67..f52f3053ed92 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1636,8 +1636,7 @@ int sdhci_add_host(struct sdhci_host *host)
         mmc->f_max = host->max_clk;
         mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;
 
-        if ((caps & SDHCI_CAN_DO_HISPD) ||
-                (host->quirks & SDHCI_QUIRK_FORCE_HIGHSPEED))
+        if (caps & SDHCI_CAN_DO_HISPD)
                 mmc->caps |= MMC_CAP_SD_HIGHSPEED;
 
         mmc->ocr_avail = 0;
@@ -1723,7 +1722,9 @@ int sdhci_add_host(struct sdhci_host *host)
 #endif
 
 #ifdef SDHCI_USE_LEDS_CLASS
-        host->led.name = mmc_hostname(mmc);
+        snprintf(host->led_name, sizeof(host->led_name),
+                "%s::", mmc_hostname(mmc));
+        host->led.name = host->led_name;
         host->led.brightness = LED_OFF;
         host->led.default_trigger = mmc_hostname(mmc);
         host->led.brightness_set = sdhci_led_control;
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 3efba2363941..ebb83657e27a 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -208,8 +208,6 @@ struct sdhci_host {
 #define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL                  (1<<12)
 /* Controller has an issue with buffer bits for small transfers */
 #define SDHCI_QUIRK_BROKEN_SMALL_PIO                    (1<<13)
-/* Controller supports high speed but doesn't have the caps bit set */
-#define SDHCI_QUIRK_FORCE_HIGHSPEED                     (1<<14)
 
         int                     irq;            /* Device IRQ */
         void __iomem *          ioaddr;         /* Mapped address */
@@ -222,6 +220,7 @@ struct sdhci_host {
 
 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
         struct led_classdev     led;            /* LED control */
+        char   led_name[32];
 #endif
 
         spinlock_t              lock;           /* Mutex */
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index f4b7c79023ff..f3f686581a90 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -61,6 +61,8 @@
 /* global iommu list, set NULL for ignored DMAR units */
 static struct intel_iommu **g_iommus;
 
+static int rwbf_quirk;
+
 /*
  * 0: Present
  * 1-11: Reserved
@@ -785,7 +787,7 @@ static void iommu_flush_write_buffer(struct intel_iommu *iommu)
         u32 val;
         unsigned long flag;
 
-        if (!cap_rwbf(iommu->cap))
+        if (!rwbf_quirk && !cap_rwbf(iommu->cap))
                 return;
         val = iommu->gcmd | DMA_GCMD_WBF;
 
@@ -3137,3 +3139,15 @@ static struct iommu_ops intel_iommu_ops = {
         .unmap          = intel_iommu_unmap_range,
         .iova_to_phys   = intel_iommu_iova_to_phys,
 };
+
+static void __devinit quirk_iommu_rwbf(struct pci_dev *dev)
+{
+        /*
+         * Mobile 4 Series Chipset neglects to set RWBF capability,
+         * but needs it:
+         */
+        printk(KERN_INFO "DMAR: Forcing write-buffer flush capability\n");
+        rwbf_quirk = 1;
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2a40, quirk_iommu_rwbf);
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 44f15ff70c1d..baba2eb5367d 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -103,14 +103,12 @@ static void msix_set_enable(struct pci_dev *dev, int enable)
         }
 }
 
-/*
- * Essentially, this is ((1 << (1 << x)) - 1), but without the
- * undefinedness of a << 32.
- */
 static inline __attribute_const__ u32 msi_mask(unsigned x)
 {
-        static const u32 mask[] = { 1, 2, 4, 0xf, 0xff, 0xffff, 0xffffffff };
-        return mask[x];
+        /* Don't shift by >= width of type */
+        if (x >= 5)
+                return 0xffffffff;
+        return (1 << (1 << x)) - 1;
 }
 
 static void msix_flush_writes(struct irq_desc *desc)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e3efe6b19ee7..6d6120007af4 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1540,16 +1540,21 @@ void pci_release_region(struct pci_dev *pdev, int bar)
 }
 
 /**
- *      pci_request_region - Reserved PCI I/O and memory resource
+ *      __pci_request_region - Reserved PCI I/O and memory resource
  *      @pdev: PCI device whose resources are to be reserved
  *      @bar: BAR to be reserved
  *      @res_name: Name to be associated with resource.
+ *      @exclusive: whether the region access is exclusive or not
  *
  *      Mark the PCI region associated with PCI device @pdev BR @bar as
  *      being reserved by owner @res_name.  Do not access any
  *      address inside the PCI regions unless this call returns
  *      successfully.
  *
+ *      If @exclusive is set, then the region is marked so that userspace
+ *      is explicitly not allowed to map the resource via /dev/mem or
+ *      sysfs MMIO access.
+ *
  *      Returns 0 on success, or %EBUSY on error.  A warning
  *      message is also printed on failure.
  */
@@ -1588,12 +1593,12 @@ err_out:
 }
 
 /**
- *      pci_request_region - Reserved PCI I/O and memory resource
+ *      pci_request_region - Reserve PCI I/O and memory resource
  *      @pdev: PCI device whose resources are to be reserved
  *      @bar: BAR to be reserved
- *      @res_name: Name to be associated with resource.
+ *      @res_name: Name to be associated with resource
  *
- *      Mark the PCI region associated with PCI device @pdev BR @bar as
+ *      Mark the PCI region associated with PCI device @pdev BAR @bar as
  *      being reserved by owner @res_name.  Do not access any
  *      address inside the PCI regions unless this call returns
  *      successfully.
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 26ddf78ac300..07c0aa5275e6 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -16,21 +16,21 @@ extern int pci_mmap_fits(struct pci_dev *pdev, int resno,
 #endif
 
 /**
- * Firmware PM callbacks
+ * struct pci_platform_pm_ops - Firmware PM callbacks
  *
- * @is_manageable - returns 'true' if given device is power manageable by the
- *                  platform firmware
+ * @is_manageable: returns 'true' if given device is power manageable by the
+ *                 platform firmware
  *
- * @set_state - invokes the platform firmware to set the device's power state
+ * @set_state: invokes the platform firmware to set the device's power state
  *
- * @choose_state - returns PCI power state of given device preferred by the
- *                 platform; to be used during system-wide transitions from a
- *                 sleeping state to the working state and vice versa
+ * @choose_state: returns PCI power state of given device preferred by the
+ *                platform; to be used during system-wide transitions from a
+ *                sleeping state to the working state and vice versa
  *
- * @can_wakeup - returns 'true' if given device is capable of waking up the
- *               system from a sleeping state
+ * @can_wakeup: returns 'true' if given device is capable of waking up the
+ *              system from a sleeping state
  *
- * @sleep_wake - enables/disables the system wake up capability of given device
+ * @sleep_wake: enables/disables the system wake up capability of given device
  *
  * If given platform is generally capable of power managing PCI devices, all of
  * these callbacks are mandatory.
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c
index 29cbe47f219f..36864a935d68 100644
--- a/drivers/pci/rom.c
+++ b/drivers/pci/rom.c
@@ -55,6 +55,7 @@ void pci_disable_rom(struct pci_dev *pdev)
 
 /**
  * pci_get_rom_size - obtain the actual size of the ROM image
+ * @pdev: target PCI device
  * @rom: kernel virtual pointer to image of ROM
  * @size: size of PCI window
  *  return: size of actual ROM image
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 94363115a42a..b3866ad50227 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -62,6 +62,7 @@ config DELL_LAPTOP
         depends on EXPERIMENTAL
         depends on BACKLIGHT_CLASS_DEVICE
         depends on RFKILL
+        depends on POWER_SUPPLY
         default n
         ---help---
         This driver adds support for rfkill and backlight control to Dell
@@ -301,6 +302,7 @@ config INTEL_MENLOW
 config EEEPC_LAPTOP
         tristate "Eee PC Hotkey Driver (EXPERIMENTAL)"
         depends on ACPI
+        depends on INPUT
         depends on EXPERIMENTAL
         select BACKLIGHT_CLASS_DEVICE
         select HWMON
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 89362d733d62..8f58f7ff0dd7 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -877,6 +877,10 @@ static int atmel_startup(struct uart_port *port)
                 }
         }
 
+        /* Save current CSR for comparison in atmel_tasklet_func() */
+        atmel_port->irq_status_prev = UART_GET_CSR(port);
+        atmel_port->irq_status = atmel_port->irq_status_prev;
+
         /*
          * Finally, enable the serial port
          */
diff --git a/drivers/serial/jsm/jsm_driver.c b/drivers/serial/jsm/jsm_driver.c
index 92187e28608a..ac79cbe4c2cf 100644
--- a/drivers/serial/jsm/jsm_driver.c
+++ b/drivers/serial/jsm/jsm_driver.c
@@ -84,6 +84,8 @@ static int jsm_probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         brd->pci_dev = pdev;
         if (pdev->device == PCIE_DEVICE_ID_NEO_4_IBM)
                 brd->maxports = 4;
+        else if (pdev->device == PCI_DEVICE_ID_DIGI_NEO_8)
+                brd->maxports = 8;
         else
                 brd->maxports = 2;
 
@@ -212,6 +214,7 @@ static struct pci_device_id jsm_pci_tbl[] = {
         { PCI_DEVICE(PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_NEO_2RJ45), 0, 0, 2 },
         { PCI_DEVICE(PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_NEO_2RJ45PRI), 0, 0, 3 },
         { PCI_DEVICE(PCI_VENDOR_ID_DIGI, PCIE_DEVICE_ID_NEO_4_IBM), 0, 0, 4 },
+        { PCI_DEVICE(PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_NEO_8), 0, 0, 5 },
         { 0, }
 };
 MODULE_DEVICE_TABLE(pci, jsm_pci_tbl);
diff --git a/drivers/spi/spi_gpio.c b/drivers/spi/spi_gpio.c
index 49698cabc30d..f5ed9721aabb 100644
--- a/drivers/spi/spi_gpio.c
+++ b/drivers/spi/spi_gpio.c
@@ -114,7 +114,7 @@ static inline void setmosi(const struct spi_device *spi, int is_on)
 
 static inline int getmiso(const struct spi_device *spi)
 {
-        return gpio_get_value(SPI_MISO_GPIO);
+        return !!gpio_get_value(SPI_MISO_GPIO);
 }
 
 #undef pdata
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index c54fc40458b1..a4301dc02d27 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -298,19 +298,6 @@ int usb_hcd_pci_suspend(struct pci_dev *dev, pm_message_t message)
 EXPORT_SYMBOL_GPL(usb_hcd_pci_suspend);
 
 /**
- * usb_hcd_pci_resume_early - resume a PCI-based HCD before IRQs are enabled
- * @dev: USB Host Controller being resumed
- *
- * Store this function in the HCD's struct pci_driver as .resume_early.
- */
-int usb_hcd_pci_resume_early(struct pci_dev *dev)
-{
-        pci_restore_state(dev);
-        return 0;
-}
-EXPORT_SYMBOL_GPL(usb_hcd_pci_resume_early);
-
-/**
  * usb_hcd_pci_resume - power management resume of a PCI-based HCD
  * @dev: USB Host Controller being resumed
  *
@@ -333,6 +320,8 @@ int usb_hcd_pci_resume(struct pci_dev *dev)
         }
 #endif
 
+        pci_restore_state(dev);
+
         hcd = pci_get_drvdata(dev);
         if (hcd->state != HC_STATE_SUSPENDED) {
                 dev_dbg(hcd->self.controller,
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index 5b94a56bec23..f750eb1ab595 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -257,7 +257,6 @@ extern void usb_hcd_pci_remove(struct pci_dev *dev);
 
 #ifdef CONFIG_PM
 extern int usb_hcd_pci_suspend(struct pci_dev *dev, pm_message_t msg);
-extern int usb_hcd_pci_resume_early(struct pci_dev *dev);
 extern int usb_hcd_pci_resume(struct pci_dev *dev);
 #endif /* CONFIG_PM */
 
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index bb21fb0a4969..abb9a7706ec7 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -432,7 +432,6 @@ static struct pci_driver ehci_pci_driver = {
 
 #ifdef  CONFIG_PM
         .suspend =      usb_hcd_pci_suspend,
-        .resume_early = usb_hcd_pci_resume_early,
         .resume =       usb_hcd_pci_resume,
 #endif
         .shutdown =     usb_hcd_pci_shutdown,
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index 5d625c3fd423..f9961b4c0da3 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -487,7 +487,6 @@ static struct pci_driver ohci_pci_driver = {
 
 #ifdef  CONFIG_PM
         .suspend =      usb_hcd_pci_suspend,
-        .resume_early = usb_hcd_pci_resume_early,
         .resume =       usb_hcd_pci_resume,
 #endif
 
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 944f7e0ca4df..cf5e4cf7ea42 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -942,7 +942,6 @@ static struct pci_driver uhci_pci_driver = {
 
 #ifdef  CONFIG_PM
         .suspend =      usb_hcd_pci_suspend,
-        .resume_early = usb_hcd_pci_resume_early,
         .resume =       usb_hcd_pci_resume,
 #endif  /* PM */
 };
diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c
index 2291c5f5af51..958751ccea43 100644
--- a/drivers/usb/host/whci/asl.c
+++ b/drivers/usb/host/whci/asl.c
@@ -227,13 +227,13 @@ void scan_async_work(struct work_struct *work)
          * Now that the ASL is updated, complete the removal of any
          * removed qsets.
          */
-        spin_lock(&whc->lock);
+        spin_lock_irq(&whc->lock);
 
         list_for_each_entry_safe(qset, t, &whc->async_removed_list, list_node) {
                 qset_remove_complete(whc, qset);
         }
 
-        spin_unlock(&whc->lock);
+        spin_unlock_irq(&whc->lock);
 }
 
 /**
diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c
index 7dc85a0bee7c..df8b85f07092 100644
--- a/drivers/usb/host/whci/pzl.c
+++ b/drivers/usb/host/whci/pzl.c
@@ -255,13 +255,13 @@ void scan_periodic_work(struct work_struct *work)
          * Now that the PZL is updated, complete the removal of any
          * removed qsets.
          */
-        spin_lock(&whc->lock);
+        spin_lock_irq(&whc->lock);
 
         list_for_each_entry_safe(qset, t, &whc->periodic_removed_list, list_node) {
                 qset_remove_complete(whc, qset);
         }
 
-        spin_unlock(&whc->lock);
+        spin_unlock_irq(&whc->lock);
 }
 
 /**
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index bf0af660df8a..fb19803060cf 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1054,10 +1054,7 @@ config FB_RIVA_BACKLIGHT
 
 config FB_I810
         tristate "Intel 810/815 support (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && PCI && X86_32
-        select AGP
-        select AGP_INTEL
-        select FB
+        depends on EXPERIMENTAL && FB && PCI && X86_32 && AGP_INTEL
         select FB_MODE_HELPERS
         select FB_CFB_FILLRECT
         select FB_CFB_COPYAREA
@@ -1120,10 +1117,7 @@ config FB_CARILLO_RANCH
 
 config FB_INTEL
         tristate "Intel 830M/845G/852GM/855GM/865G/915G/945G/945GM/965G/965GM support (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && PCI && X86
-        select FB
-        select AGP
-        select AGP_INTEL
+        depends on EXPERIMENTAL && FB && PCI && X86 && AGP_INTEL
         select FB_MODE_HELPERS
         select FB_CFB_FILLRECT
         select FB_CFB_COPYAREA
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 09a3d5522b43..325c10ff6a2c 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -406,7 +406,7 @@ config ITCO_WDT
         ---help---
           Hardware driver for the intel TCO timer based watchdog devices.
           These drivers are included in the Intel 82801 I/O Controller
-          Hub family (from ICH0 up to ICH8) and in the Intel 6300ESB
+          Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
           controller hub.
 
           The TCO (Total Cost of Ownership) timer is a watchdog timer
diff --git a/drivers/watchdog/iTCO_vendor_support.c b/drivers/watchdog/iTCO_vendor_support.c
index 2474ebca88f6..d8264ad0be41 100644
--- a/drivers/watchdog/iTCO_vendor_support.c
+++ b/drivers/watchdog/iTCO_vendor_support.c
@@ -1,7 +1,7 @@
 /*
  *      intel TCO vendor specific watchdog driver support
  *
- *      (c) Copyright 2006-2008 Wim Van Sebroeck <wim@iguana.be>.
+ *      (c) Copyright 2006-2009 Wim Van Sebroeck <wim@iguana.be>.
  *
  *      This program is free software; you can redistribute it and/or
  *      modify it under the terms of the GNU General Public License
@@ -19,7 +19,7 @@
 
 /* Module and version information */
 #define DRV_NAME        "iTCO_vendor_support"
-#define DRV_VERSION     "1.02"
+#define DRV_VERSION     "1.03"
 #define PFX             DRV_NAME ": "
 
 /* Includes */
@@ -77,6 +77,26 @@ MODULE_PARM_DESC(vendorsupport, "iTCO vendor specific support mode, default=0 (n
  *          20.6 seconds.
  */
 
+static void supermicro_old_pre_start(unsigned long acpibase)
+{
+        unsigned long val32;
+
+        /* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI# */
+        val32 = inl(SMI_EN);
+        val32 &= 0xffffdfff;    /* Turn off SMI clearing watchdog */
+        outl(val32, SMI_EN);    /* Needed to activate watchdog */
+}
+
+static void supermicro_old_pre_stop(unsigned long acpibase)
+{
+        unsigned long val32;
+
+        /* Bit 13: TCO_EN -> 1 = Enables the TCO logic to generate SMI# */
+        val32 = inl(SMI_EN);
+        val32 |= 0x00002000;    /* Turn on SMI clearing watchdog */
+        outl(val32, SMI_EN);    /* Needed to deactivate watchdog */
+}
+
 static void supermicro_old_pre_keepalive(unsigned long acpibase)
 {
         /* Reload TCO Timer (done in iTCO_wdt_keepalive) + */
@@ -228,14 +248,18 @@ static void supermicro_new_pre_set_heartbeat(unsigned int heartbeat)
 void iTCO_vendor_pre_start(unsigned long acpibase,
                            unsigned int heartbeat)
 {
-        if (vendorsupport == SUPERMICRO_NEW_BOARD)
+        if (vendorsupport == SUPERMICRO_OLD_BOARD)
+                supermicro_old_pre_start(acpibase);
+        else if (vendorsupport == SUPERMICRO_NEW_BOARD)
                 supermicro_new_pre_start(heartbeat);
 }
 EXPORT_SYMBOL(iTCO_vendor_pre_start);
 
 void iTCO_vendor_pre_stop(unsigned long acpibase)
 {
-        if (vendorsupport == SUPERMICRO_NEW_BOARD)
+        if (vendorsupport == SUPERMICRO_OLD_BOARD)
+                supermicro_old_pre_stop(acpibase);
+        else if (vendorsupport == SUPERMICRO_NEW_BOARD)
                 supermicro_new_pre_stop();
 }
 EXPORT_SYMBOL(iTCO_vendor_pre_stop);
diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index 5b395a4ddfdf..352334947ea3 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -1,7 +1,7 @@
 /*
- *      intel TCO Watchdog Driver (Used in i82801 and i6300ESB chipsets)
+ *      intel TCO Watchdog Driver (Used in i82801 and i63xxESB chipsets)
  *
- *      (c) Copyright 2006-2008 Wim Van Sebroeck <wim@iguana.be>.
+ *      (c) Copyright 2006-2009 Wim Van Sebroeck <wim@iguana.be>.
  *
  *      This program is free software; you can redistribute it and/or
  *      modify it under the terms of the GNU General Public License
@@ -63,7 +63,7 @@
 
 /* Module and version information */
 #define DRV_NAME        "iTCO_wdt"
-#define DRV_VERSION     "1.04"
+#define DRV_VERSION     "1.05"
 #define PFX             DRV_NAME ": "
 
 /* Includes */
@@ -236,16 +236,16 @@ MODULE_DEVICE_TABLE(pci, iTCO_wdt_pci_tbl);
 
 /* Address definitions for the TCO */
 /* TCO base address */
-#define TCOBASE         iTCO_wdt_private.ACPIBASE + 0x60
+#define TCOBASE         iTCO_wdt_private.ACPIBASE + 0x60
 /* SMI Control and Enable Register */
-#define SMI_EN          iTCO_wdt_private.ACPIBASE + 0x30
+#define SMI_EN          iTCO_wdt_private.ACPIBASE + 0x30
 
 #define TCO_RLD         TCOBASE + 0x00  /* TCO Timer Reload and Curr. Value */
 #define TCOv1_TMR       TCOBASE + 0x01  /* TCOv1 Timer Initial Value    */
-#define TCO_DAT_IN      TCOBASE + 0x02  /* TCO Data In Register         */
-#define TCO_DAT_OUT     TCOBASE + 0x03  /* TCO Data Out Register        */
-#define TCO1_STS        TCOBASE + 0x04  /* TCO1 Status Register         */
-#define TCO2_STS        TCOBASE + 0x06  /* TCO2 Status Register         */
+#define TCO_DAT_IN      TCOBASE + 0x02  /* TCO Data In Register         */
+#define TCO_DAT_OUT     TCOBASE + 0x03  /* TCO Data Out Register        */
+#define TCO1_STS        TCOBASE + 0x04  /* TCO1 Status Register         */
+#define TCO2_STS        TCOBASE + 0x06  /* TCO2 Status Register         */
 #define TCO1_CNT        TCOBASE + 0x08  /* TCO1 Control Register        */
 #define TCO2_CNT        TCOBASE + 0x0a  /* TCO2 Control Register        */
 #define TCOv2_TMR       TCOBASE + 0x12  /* TCOv2 Timer Initial Value    */
@@ -338,7 +338,6 @@ static int iTCO_wdt_unset_NO_REBOOT_bit(void)
 static int iTCO_wdt_start(void)
 {
         unsigned int val;
-        unsigned long val32;
 
         spin_lock(&iTCO_wdt_private.io_lock);
 
@@ -351,11 +350,6 @@ static int iTCO_wdt_start(void)
                 return -EIO;
         }
 
-        /* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI# */
-        val32 = inl(SMI_EN);
-        val32 &= 0xffffdfff;    /* Turn off SMI clearing watchdog */
-        outl(val32, SMI_EN);
-
         /* Force the timer to its reload value by writing to the TCO_RLD
            register */
         if (iTCO_wdt_private.iTCO_version == 2)
@@ -378,7 +372,6 @@ static int iTCO_wdt_start(void)
 static int iTCO_wdt_stop(void)
 {
         unsigned int val;
-        unsigned long val32;
 
         spin_lock(&iTCO_wdt_private.io_lock);
 
@@ -390,11 +383,6 @@ static int iTCO_wdt_stop(void)
         outw(val, TCO1_CNT);
         val = inw(TCO1_CNT);
 
-        /* Bit 13: TCO_EN -> 1 = Enables the TCO logic to generate SMI# */
-        val32 = inl(SMI_EN);
-        val32 |= 0x00002000;
-        outl(val32, SMI_EN);
-
         /* Set the NO_REBOOT bit to prevent later reboots, just for sure */
         iTCO_wdt_set_NO_REBOOT_bit();
 
@@ -649,6 +637,7 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
         int ret;
         u32 base_address;
         unsigned long RCBA;
+        unsigned long val32;
 
         /*
          *      Find the ACPI/PM base I/O address which is the base
@@ -695,6 +684,10 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
                 ret = -EIO;
                 goto out;
         }
+        /* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI# */
+        val32 = inl(SMI_EN);
+        val32 &= 0xffffdfff;    /* Turn off SMI clearing watchdog */
+        outl(val32, SMI_EN);
 
         /* The TCO I/O registers reside in a 32-byte range pointed to
            by the TCOBASE value */
diff --git a/fs/bio.c b/fs/bio.c
index 062299acbccd..72ab251cdb9c 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -302,9 +302,10 @@ void bio_init(struct bio *bio)
 struct bio *bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set *bs)
 {
         struct bio *bio = NULL;
+        void *p;
 
         if (bs) {
-                void *p = mempool_alloc(bs->bio_pool, gfp_mask);
+                p = mempool_alloc(bs->bio_pool, gfp_mask);
 
                 if (p)
                         bio = p + bs->front_pad;
@@ -329,7 +330,7 @@ struct bio *bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set *bs)
                         }
                         if (unlikely(!bvl)) {
                                 if (bs)
-                                        mempool_free(bio, bs->bio_pool);
+                                        mempool_free(p, bs->bio_pool);
                                 else
                                         kfree(bio);
                                 bio = NULL;
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 35443cc4b9a9..42491d728e99 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -38,19 +38,12 @@ static int balance_node_right(struct btrfs_trans_handle *trans,
 static int del_ptr(struct btrfs_trans_handle *trans, struct btrfs_root *root,
                    struct btrfs_path *path, int level, int slot);
 
-inline void btrfs_init_path(struct btrfs_path *p)
-{
-        memset(p, 0, sizeof(*p));
-}
-
 struct btrfs_path *btrfs_alloc_path(void)
 {
         struct btrfs_path *path;
-        path = kmem_cache_alloc(btrfs_path_cachep, GFP_NOFS);
-        if (path) {
-                btrfs_init_path(path);
+        path = kmem_cache_zalloc(btrfs_path_cachep, GFP_NOFS);
+        if (path)
                 path->reada = 1;
-        }
         return path;
 }
 
@@ -69,14 +62,38 @@ noinline void btrfs_set_path_blocking(struct btrfs_path *p)
 
 /*
  * reset all the locked nodes in the patch to spinning locks.
+ *
+ * held is used to keep lockdep happy, when lockdep is enabled
+ * we set held to a blocking lock before we go around and
+ * retake all the spinlocks in the path.  You can safely use NULL
+ * for held
  */
-noinline void btrfs_clear_path_blocking(struct btrfs_path *p)
+noinline void btrfs_clear_path_blocking(struct btrfs_path *p,
+                                        struct extent_buffer *held)
 {
         int i;
-        for (i = 0; i < BTRFS_MAX_LEVEL; i++) {
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+        /* lockdep really cares that we take all of these spinlocks
+         * in the right order.  If any of the locks in the path are not
+         * currently blocking, it is going to complain.  So, make really
+         * really sure by forcing the path to blocking before we clear
+         * the path blocking.
+         */
+        if (held)
+                btrfs_set_lock_blocking(held);
+        btrfs_set_path_blocking(p);
+#endif
+
+        for (i = BTRFS_MAX_LEVEL - 1; i >= 0; i--) {
                 if (p->nodes[i] && p->locks[i])
                         btrfs_clear_lock_blocking(p->nodes[i]);
         }
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+        if (held)
+                btrfs_clear_lock_blocking(held);
+#endif
 }
 
 /* this also releases the path */
@@ -286,7 +303,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
                                                   trans->transid, level, &ins);
                 BUG_ON(ret);
                 cow = btrfs_init_new_buffer(trans, root, prealloc_dest,
-                                            buf->len);
+                                            buf->len, level);
         } else {
                 cow = btrfs_alloc_free_block(trans, root, buf->len,
                                              parent_start,
@@ -917,9 +934,9 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
 
                 /* promote the child to a root */
                 child = read_node_slot(root, mid, 0);
+                BUG_ON(!child);
                 btrfs_tree_lock(child);
                 btrfs_set_lock_blocking(child);
-                BUG_ON(!child);
                 ret = btrfs_cow_block(trans, root, child, mid, 0, &child, 0);
                 BUG_ON(ret);
 
@@ -1566,7 +1583,7 @@ cow_done:
                 if (!p->skip_locking)
                         p->locks[level] = 1;
 
-                btrfs_clear_path_blocking(p);
+                btrfs_clear_path_blocking(p, NULL);
 
                 /*
                  * we have a lock on b and as long as we aren't changing
@@ -1605,7 +1622,7 @@ cow_done:
 
                                 btrfs_set_path_blocking(p);
                                 sret = split_node(trans, root, p, level);
-                                btrfs_clear_path_blocking(p);
+                                btrfs_clear_path_blocking(p, NULL);
 
                                 BUG_ON(sret > 0);
                                 if (sret) {
@@ -1625,7 +1642,7 @@ cow_done:
 
                                 btrfs_set_path_blocking(p);
                                 sret = balance_level(trans, root, p, level);
-                                btrfs_clear_path_blocking(p);
+                                btrfs_clear_path_blocking(p, NULL);
 
                                 if (sret) {
                                         ret = sret;
@@ -1688,13 +1705,13 @@ cow_done:
                         if (!p->skip_locking) {
                                 int lret;
 
-                                btrfs_clear_path_blocking(p);
+                                btrfs_clear_path_blocking(p, NULL);
                                 lret = btrfs_try_spin_lock(b);
 
                                 if (!lret) {
                                         btrfs_set_path_blocking(p);
                                         btrfs_tree_lock(b);
-                                        btrfs_clear_path_blocking(p);
+                                        btrfs_clear_path_blocking(p, b);
                                 }
                         }
                 } else {
@@ -1706,7 +1723,7 @@ cow_done:
                                 btrfs_set_path_blocking(p);
                                 sret = split_leaf(trans, root, key,
                                                       p, ins_len, ret == 0);
-                                btrfs_clear_path_blocking(p);
+                                btrfs_clear_path_blocking(p, NULL);
 
                                 BUG_ON(sret > 0);
                                 if (sret) {
@@ -3926,7 +3943,6 @@ find_next_key:
                                 btrfs_release_path(root, path);
                                 goto again;
                         } else {
-                                btrfs_clear_path_blocking(path);
                                 goto out;
                         }
                 }
@@ -3946,7 +3962,7 @@ find_next_key:
                 path->locks[level - 1] = 1;
                 path->nodes[level - 1] = cur;
                 unlock_up(path, level, 1);
-                btrfs_clear_path_blocking(path);
+                btrfs_clear_path_blocking(path, NULL);
         }
 out:
         if (ret == 0)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 531db112c8bd..766b31ae3186 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -43,11 +43,7 @@ struct btrfs_ordered_sum;
 
 #define BTRFS_ACL_NOT_CACHED    ((void *)-1)
 
-#ifdef CONFIG_LOCKDEP
-# define BTRFS_MAX_LEVEL 7
-#else
-# define BTRFS_MAX_LEVEL 8
-#endif
+#define BTRFS_MAX_LEVEL 8
 
 /* holds pointers to all of the tree roots */
 #define BTRFS_ROOT_TREE_OBJECTID 1ULL
@@ -1715,7 +1711,8 @@ struct extent_buffer *btrfs_alloc_free_block(struct btrfs_trans_handle *trans,
                                              u64 empty_size);
 struct extent_buffer *btrfs_init_new_buffer(struct btrfs_trans_handle *trans,
                                             struct btrfs_root *root,
-                                            u64 bytenr, u32 blocksize);
+                                            u64 bytenr, u32 blocksize,
+                                            int level);
 int btrfs_alloc_extent(struct btrfs_trans_handle *trans,
                        struct btrfs_root *root,
                        u64 num_bytes, u64 parent, u64 min_bytes,
@@ -1834,9 +1831,7 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
 void btrfs_release_path(struct btrfs_root *root, struct btrfs_path *p);
 struct btrfs_path *btrfs_alloc_path(void);
 void btrfs_free_path(struct btrfs_path *p);
-void btrfs_init_path(struct btrfs_path *p);
 void btrfs_set_path_blocking(struct btrfs_path *p);
-void btrfs_clear_path_blocking(struct btrfs_path *p);
 void btrfs_unlock_up_safe(struct btrfs_path *p, int level);
 
 int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 5aebddd71193..adda739a0215 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -75,6 +75,40 @@ struct async_submit_bio {
         struct btrfs_work work;
 };
 
+/* These are used to set the lockdep class on the extent buffer locks.
+ * The class is set by the readpage_end_io_hook after the buffer has
+ * passed csum validation but before the pages are unlocked.
+ *
+ * The lockdep class is also set by btrfs_init_new_buffer on freshly
+ * allocated blocks.
+ *
+ * The class is based on the level in the tree block, which allows lockdep
+ * to know that lower nodes nest inside the locks of higher nodes.
+ *
+ * We also add a check to make sure the highest level of the tree is
+ * the same as our lockdep setup here.  If BTRFS_MAX_LEVEL changes, this
+ * code needs update as well.
+ */
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+# if BTRFS_MAX_LEVEL != 8
+#  error
+# endif
+static struct lock_class_key btrfs_eb_class[BTRFS_MAX_LEVEL + 1];
+static const char *btrfs_eb_name[BTRFS_MAX_LEVEL + 1] = {
+        /* leaf */
+        "btrfs-extent-00",
+        "btrfs-extent-01",
+        "btrfs-extent-02",
+        "btrfs-extent-03",
+        "btrfs-extent-04",
+        "btrfs-extent-05",
+        "btrfs-extent-06",
+        "btrfs-extent-07",
+        /* highest possible level */
+        "btrfs-extent-08",
+};
+#endif
+
 /*
  * extents on the btree inode are pretty simple, there's one extent
  * that covers the entire device
@@ -347,6 +381,15 @@ static int check_tree_block_fsid(struct btrfs_root *root,
         return ret;
 }
 
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+void btrfs_set_buffer_lockdep_class(struct extent_buffer *eb, int level)
+{
+        lockdep_set_class_and_name(&eb->lock,
+                           &btrfs_eb_class[level],
+                           btrfs_eb_name[level]);
+}
+#endif
+
 static int btree_readpage_end_io_hook(struct page *page, u64 start, u64 end,
                                struct extent_state *state)
 {
@@ -392,6 +435,8 @@ static int btree_readpage_end_io_hook(struct page *page, u64 start, u64 end,
         }
         found_level = btrfs_header_level(eb);
 
+        btrfs_set_buffer_lockdep_class(eb, found_level);
+
         ret = csum_tree_block(root, eb, 1);
         if (ret)
                 ret = -EIO;
@@ -1777,7 +1822,6 @@ struct btrfs_root *open_ctree(struct super_block *sb,
         ret = find_and_setup_root(tree_root, fs_info,
                                   BTRFS_DEV_TREE_OBJECTID, dev_root);
         dev_root->track_dirty = 1;
-
         if (ret)
                 goto fail_extent_root;
 
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 494a56eb2986..95029db227be 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -101,4 +101,14 @@ int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans,
 int btrfs_add_log_tree(struct btrfs_trans_handle *trans,
                        struct btrfs_root *root);
 int btree_lock_page_hook(struct page *page);
+
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+void btrfs_set_buffer_lockdep_class(struct extent_buffer *eb, int level);
+#else
+static inline void btrfs_set_buffer_lockdep_class(struct extent_buffer *eb,
+                                                 int level)
+{
+}
+#endif
 #endif
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 7527523c2d2d..0a5d796c9f7e 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1323,8 +1323,25 @@ int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
 int btrfs_extent_post_op(struct btrfs_trans_handle *trans,
                          struct btrfs_root *root)
 {
-        finish_current_insert(trans, root->fs_info->extent_root, 1);
-        del_pending_extents(trans, root->fs_info->extent_root, 1);
+        u64 start;
+        u64 end;
+        int ret;
+
+        while(1) {
+                finish_current_insert(trans, root->fs_info->extent_root, 1);
+                del_pending_extents(trans, root->fs_info->extent_root, 1);
+
+                /* is there more work to do? */
+                ret = find_first_extent_bit(&root->fs_info->pending_del,
+                                            0, &start, &end, EXTENT_WRITEBACK);
+                if (!ret)
+                        continue;
+                ret = find_first_extent_bit(&root->fs_info->extent_ins,
+                                            0, &start, &end, EXTENT_WRITEBACK);
+                if (!ret)
+                        continue;
+                break;
+        }
         return 0;
 }
 
@@ -2211,13 +2228,12 @@ static int finish_current_insert(struct btrfs_trans_handle *trans,
         u64 end;
         u64 priv;
         u64 search = 0;
-        u64 skipped = 0;
         struct btrfs_fs_info *info = extent_root->fs_info;
         struct btrfs_path *path;
         struct pending_extent_op *extent_op, *tmp;
         struct list_head insert_list, update_list;
         int ret;
-        int num_inserts = 0, max_inserts;
+        int num_inserts = 0, max_inserts, restart = 0;
 
         path = btrfs_alloc_path();
         INIT_LIST_HEAD(&insert_list);
@@ -2233,19 +2249,19 @@ again:
                 ret = find_first_extent_bit(&info->extent_ins, search, &start,
                                             &end, EXTENT_WRITEBACK);
                 if (ret) {
-                        if (skipped && all && !num_inserts &&
+                        if (restart && !num_inserts &&
                             list_empty(&update_list)) {
-                                skipped = 0;
+                                restart = 0;
                                 search = 0;
                                 continue;
                         }
-                        mutex_unlock(&info->extent_ins_mutex);
                         break;
                 }
 
                 ret = try_lock_extent(&info->extent_ins, start, end, GFP_NOFS);
                 if (!ret) {
-                        skipped = 1;
+                        if (all)
+                                restart = 1;
                         search = end + 1;
                         if (need_resched()) {
                                 mutex_unlock(&info->extent_ins_mutex);
@@ -2264,7 +2280,7 @@ again:
                         list_add_tail(&extent_op->list, &insert_list);
                         search = end + 1;
                         if (num_inserts == max_inserts) {
-                                mutex_unlock(&info->extent_ins_mutex);
+                                restart = 1;
                                 break;
                         }
                 } else if (extent_op->type == PENDING_BACKREF_UPDATE) {
@@ -2280,7 +2296,6 @@ again:
          * somebody marked this thing for deletion then just unlock it and be
          * done, the free_extents will handle it
          */
-        mutex_lock(&info->extent_ins_mutex);
         list_for_each_entry_safe(extent_op, tmp, &update_list, list) {
                 clear_extent_bits(&info->extent_ins, extent_op->bytenr,
                                   extent_op->bytenr + extent_op->num_bytes - 1,
@@ -2302,6 +2317,10 @@ again:
         if (!list_empty(&update_list)) {
                 ret = update_backrefs(trans, extent_root, path, &update_list);
                 BUG_ON(ret);
+
+                /* we may have COW'ed new blocks, so lets start over */
+                if (all)
+                        restart = 1;
         }
 
         /*
@@ -2309,9 +2328,9 @@ again:
          * need to make sure everything is cleaned then reset everything and
          * go back to the beginning
          */
-        if (!num_inserts && all && skipped) {
+        if (!num_inserts && restart) {
                 search = 0;
-                skipped = 0;
+                restart = 0;
                 INIT_LIST_HEAD(&update_list);
                 INIT_LIST_HEAD(&insert_list);
                 goto again;
@@ -2368,27 +2387,19 @@ again:
         BUG_ON(ret);
 
         /*
-         * if we broke out of the loop in order to insert stuff because we hit
-         * the maximum number of inserts at a time we can handle, then loop
-         * back and pick up where we left off
+         * if restart is set for whatever reason we need to go back and start
+         * searching through the pending list again.
+         *
+         * We just inserted some extents, which could have resulted in new
+         * blocks being allocated, which would result in new blocks needing
+         * updates, so if all is set we _must_ restart to get the updated
+         * blocks.
          */
-        if (num_inserts == max_inserts) {
-                INIT_LIST_HEAD(&insert_list);
-                INIT_LIST_HEAD(&update_list);
-                num_inserts = 0;
-                goto again;
-        }
-
-        /*
-         * again, if we need to make absolutely sure there are no more pending
-         * extent operations left and we know that we skipped some, go back to
-         * the beginning and do it all again
-         */
-        if (all && skipped) {
+        if (restart || all) {
                 INIT_LIST_HEAD(&insert_list);
                 INIT_LIST_HEAD(&update_list);
                 search = 0;
-                skipped = 0;
+                restart = 0;
                 num_inserts = 0;
                 goto again;
         }
@@ -2709,6 +2720,8 @@ again:
                 goto again;
         }
 
+        if (!err)
+                finish_current_insert(trans, extent_root, 0);
         return err;
 }
 
@@ -2859,7 +2872,8 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
 
         if (data & BTRFS_BLOCK_GROUP_METADATA) {
                 last_ptr = &root->fs_info->last_alloc;
-                empty_cluster = 64 * 1024;
+                if (!btrfs_test_opt(root, SSD))
+                        empty_cluster = 64 * 1024;
         }
 
         if ((data & BTRFS_BLOCK_GROUP_DATA) && btrfs_test_opt(root, SSD))
@@ -3402,7 +3416,8 @@ int btrfs_alloc_extent(struct btrfs_trans_handle *trans,
 
 struct extent_buffer *btrfs_init_new_buffer(struct btrfs_trans_handle *trans,
                                             struct btrfs_root *root,
-                                            u64 bytenr, u32 blocksize)
+                                            u64 bytenr, u32 blocksize,
+                                            int level)
 {
         struct extent_buffer *buf;
 
@@ -3410,6 +3425,7 @@ struct extent_buffer *btrfs_init_new_buffer(struct btrfs_trans_handle *trans,
         if (!buf)
                 return ERR_PTR(-ENOMEM);
         btrfs_set_header_generation(buf, trans->transid);
+        btrfs_set_buffer_lockdep_class(buf, level);
         btrfs_tree_lock(buf);
         clean_tree_block(trans, root, buf);
 
@@ -3453,7 +3469,8 @@ struct extent_buffer *btrfs_alloc_free_block(struct btrfs_trans_handle *trans,
                 return ERR_PTR(ret);
         }
 
-        buf = btrfs_init_new_buffer(trans, root, ins.objectid, blocksize);
+        buf = btrfs_init_new_buffer(trans, root, ins.objectid,
+                                    blocksize, level);
         return buf;
 }
 
@@ -5641,7 +5658,9 @@ static noinline int relocate_one_extent(struct btrfs_root *extent_root,
                         prev_block = block_start;
                 }
 
+                mutex_lock(&extent_root->fs_info->trans_mutex);
                 btrfs_record_root_in_trans(found_root);
+                mutex_unlock(&extent_root->fs_info->trans_mutex);
                 if (ref_path->owner_objectid >= BTRFS_FIRST_FREE_OBJECTID) {
                         /*
                          * try to update data extent references while
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 37d43b516b79..ebe6b29e6069 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -415,8 +415,6 @@ static int split_state(struct extent_io_tree *tree, struct extent_state *orig,
 
         node = tree_insert(&tree->state, prealloc->end, &prealloc->rb_node);
         if (node) {
-                struct extent_state *found;
-                found = rb_entry(node, struct extent_state, rb_node);
                 free_extent_state(prealloc);
                 return -EEXIST;
         }
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index 2aa79873eb46..cc7334d833c9 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -84,7 +84,6 @@ int btrfs_find_free_objectid(struct btrfs_trans_handle *trans,
         search_key.type = 0;
         search_key.offset = 0;
 
-        btrfs_init_path(path);
         start_found = 0;
         ret = btrfs_search_slot(trans, root, &search_key, path, 0, 0);
         if (ret < 0)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 8f0706210a47..3cee77ae03c8 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2531,8 +2531,6 @@ noinline int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
         key.offset = (u64)-1;
         key.type = (u8)-1;
 
-        btrfs_init_path(path);
-
 search_again:
         ret = btrfs_search_slot(trans, root, &key, path, -1, 1);
         if (ret < 0)
@@ -4263,7 +4261,7 @@ static int btrfs_releasepage(struct page *page, gfp_t gfp_flags)
 {
         if (PageWriteback(page) || PageDirty(page))
                 return 0;
-        return __btrfs_releasepage(page, gfp_flags);
+        return __btrfs_releasepage(page, gfp_flags & GFP_NOFS);
 }
 
 static void btrfs_invalidatepage(struct page *page, unsigned long offset)
diff --git a/fs/btrfs/locking.c b/fs/btrfs/locking.c
index 9ebe9385129b..85506c4a3af7 100644
--- a/fs/btrfs/locking.c
+++ b/fs/btrfs/locking.c
@@ -25,21 +25,10 @@
 #include "extent_io.h"
 #include "locking.h"
 
-/*
- * btrfs_header_level() isn't free, so don't call it when lockdep isn't
- * on
- */
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-static inline void spin_nested(struct extent_buffer *eb)
-{
-        spin_lock_nested(&eb->lock, BTRFS_MAX_LEVEL - btrfs_header_level(eb));
-}
-#else
 static inline void spin_nested(struct extent_buffer *eb)
 {
         spin_lock(&eb->lock);
 }
-#endif
 
 /*
  * Setting a lock to blocking will drop the spinlock and set the
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f3fd7e2cbc38..19a4daf03ccb 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -379,7 +379,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
         btrfs_start_delalloc_inodes(root);
         btrfs_wait_ordered_extents(root, 0);
 
-        btrfs_clean_old_snapshots(root);
         trans = btrfs_start_transaction(root, 1);
         ret = btrfs_commit_transaction(trans, root);
         sb->s_dirt = 0;
@@ -511,6 +510,10 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
         struct btrfs_root *root = btrfs_sb(sb);
         int ret;
 
+        ret = btrfs_parse_options(root, data);
+        if (ret)
+                return -EINVAL;
+
         if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
                 return 0;
 
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 919172de5c9a..4112d53d4f4d 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -688,7 +688,9 @@ static noinline int drop_dirty_roots(struct btrfs_root *tree_root,
                 num_bytes -= btrfs_root_used(&dirty->root->root_item);
                 bytes_used = btrfs_root_used(&root->root_item);
                 if (num_bytes) {
+                        mutex_lock(&root->fs_info->trans_mutex);
                         btrfs_record_root_in_trans(root);
+                        mutex_unlock(&root->fs_info->trans_mutex);
                         btrfs_set_root_used(&root->root_item,
                                             bytes_used - num_bytes);
                 }
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 20794290256b..9c462fbd60fa 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2832,7 +2832,9 @@ again:
                 BUG_ON(!wc.replay_dest);
 
                 wc.replay_dest->log_root = log;
+                mutex_lock(&fs_info->trans_mutex);
                 btrfs_record_root_in_trans(wc.replay_dest);
+                mutex_unlock(&fs_info->trans_mutex);
                 ret = walk_log_tree(trans, log, &wc);
                 BUG_ON(ret);
 
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index bcd14ebccae1..1316139bf9e8 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2894,10 +2894,6 @@ static int read_one_chunk(struct btrfs_root *root, struct btrfs_key *key,
                 free_extent_map(em);
         }
 
-        map = kzalloc(sizeof(*map), GFP_NOFS);
-        if (!map)
-                return -ENOMEM;
-
         em = alloc_extent_map(GFP_NOFS);
         if (!em)
                 return -ENOMEM;
@@ -3106,6 +3102,8 @@ int btrfs_read_sys_array(struct btrfs_root *root)
         if (!sb)
                 return -ENOMEM;
         btrfs_set_buffer_uptodate(sb);
+        btrfs_set_buffer_lockdep_class(sb, 0);
+
         write_extent_buffer(sb, super_copy, 0, BTRFS_SUPER_INFO_SIZE);
         array_size = btrfs_super_sys_array_size(super_copy);
 
diff --git a/fs/buffer.c b/fs/buffer.c
index 665d446b25bc..9f697419ed8e 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -777,6 +777,7 @@ static int __set_page_dirty(struct page *page,
                         __inc_zone_page_state(page, NR_FILE_DIRTY);
                         __inc_bdi_stat(mapping->backing_dev_info,
                                         BDI_RECLAIMABLE);
+                        task_dirty_inc(current);
                         task_io_account_write(PAGE_CACHE_SIZE);
                 }
                 radix_tree_tag_set(&mapping->page_tree,
@@ -3108,7 +3109,7 @@ int sync_dirty_buffer(struct buffer_head *bh)
         if (test_clear_buffer_dirty(bh)) {
                 get_bh(bh);
                 bh->b_end_io = end_buffer_write_sync;
-                ret = submit_bh(WRITE_SYNC, bh);
+                ret = submit_bh(WRITE, bh);
                 wait_on_buffer(bh);
                 if (buffer_eopnotsupp(bh)) {
                         clear_buffer_eopnotsupp(bh);
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 9c6d815dd191..39bd4d38e889 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1938,6 +1938,8 @@ ULONG_IOCTL(SET_BITMAP_FILE)
 /* Big K */
 COMPATIBLE_IOCTL(PIO_FONT)
 COMPATIBLE_IOCTL(GIO_FONT)
+COMPATIBLE_IOCTL(PIO_CMAP)
+COMPATIBLE_IOCTL(GIO_CMAP)
 ULONG_IOCTL(KDSIGACCEPT)
 COMPATIBLE_IOCTL(KDGETKEYCODE)
 COMPATIBLE_IOCTL(KDSETKEYCODE)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index aafc9eba1c25..b0c87dce66a3 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -868,7 +868,7 @@ static inline unsigned ext4_rec_len_from_disk(__le16 dlen)
 {
         unsigned len = le16_to_cpu(dlen);
 
-        if (len == EXT4_MAX_REC_LEN)
+        if (len == EXT4_MAX_REC_LEN || len == 0)
                 return 1 << 16;
         return len;
 }
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 03ba20be1329..cbd2ca99d113 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -47,8 +47,10 @@
 static inline int ext4_begin_ordered_truncate(struct inode *inode,
                                               loff_t new_size)
 {
-        return jbd2_journal_begin_ordered_truncate(&EXT4_I(inode)->jinode,
-                                                   new_size);
+        return jbd2_journal_begin_ordered_truncate(
+                                        EXT4_SB(inode->i_sb)->s_journal,
+                                        &EXT4_I(inode)->jinode,
+                                        new_size);
 }
 
 static void ext4_invalidatepage(struct page *page, unsigned long offset);
@@ -2437,6 +2439,7 @@ static int ext4_da_writepages(struct address_space *mapping,
         int no_nrwrite_index_update;
         int pages_written = 0;
         long pages_skipped;
+        int range_cyclic, cycled = 1, io_done = 0;
         int needed_blocks, ret = 0, nr_to_writebump = 0;
         struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb);
 
@@ -2488,9 +2491,15 @@ static int ext4_da_writepages(struct address_space *mapping,
         if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
                 range_whole = 1;
 
-        if (wbc->range_cyclic)
+        range_cyclic = wbc->range_cyclic;
+        if (wbc->range_cyclic) {
                 index = mapping->writeback_index;
-        else
+                if (index)
+                        cycled = 0;
+                wbc->range_start = index << PAGE_CACHE_SHIFT;
+                wbc->range_end  = LLONG_MAX;
+                wbc->range_cyclic = 0;
+        } else
                 index = wbc->range_start >> PAGE_CACHE_SHIFT;
 
         mpd.wbc = wbc;
@@ -2504,6 +2513,7 @@ static int ext4_da_writepages(struct address_space *mapping,
         wbc->no_nrwrite_index_update = 1;
         pages_skipped = wbc->pages_skipped;
 
+retry:
         while (!ret && wbc->nr_to_write > 0) {
 
                 /*
@@ -2546,6 +2556,7 @@ static int ext4_da_writepages(struct address_space *mapping,
                         pages_written += mpd.pages_written;
                         wbc->pages_skipped = pages_skipped;
                         ret = 0;
+                        io_done = 1;
                 } else if (wbc->nr_to_write)
                         /*
                          * There is no more writeout needed
@@ -2554,6 +2565,13 @@ static int ext4_da_writepages(struct address_space *mapping,
                          */
                         break;
         }
+        if (!io_done && !cycled) {
+                cycled = 1;
+                index = 0;
+                wbc->range_start = index << PAGE_CACHE_SHIFT;
+                wbc->range_end  = mapping->writeback_index - 1;
+                goto retry;
+        }
         if (pages_skipped != wbc->pages_skipped)
                 printk(KERN_EMERG "This should not happen leaving %s "
                                 "with nr_to_write = %ld ret = %d\n",
@@ -2561,6 +2579,7 @@ static int ext4_da_writepages(struct address_space *mapping,
 
         /* Update index */
         index += pages_written;
+        wbc->range_cyclic = range_cyclic;
         if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0))
                 /*
                  * set the writeback_index so that range_cyclic
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index deba54f6cbed..4415beeb0b62 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3693,6 +3693,8 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
         pa->pa_free = pa->pa_len;
         atomic_set(&pa->pa_count, 1);
         spin_lock_init(&pa->pa_lock);
+        INIT_LIST_HEAD(&pa->pa_inode_list);
+        INIT_LIST_HEAD(&pa->pa_group_list);
         pa->pa_deleted = 0;
         pa->pa_linear = 0;
 
@@ -3755,6 +3757,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
         atomic_set(&pa->pa_count, 1);
         spin_lock_init(&pa->pa_lock);
         INIT_LIST_HEAD(&pa->pa_inode_list);
+        INIT_LIST_HEAD(&pa->pa_group_list);
         pa->pa_deleted = 0;
         pa->pa_linear = 1;
 
@@ -4476,23 +4479,26 @@ static int ext4_mb_release_context(struct ext4_allocation_context *ac)
                         pa->pa_free -= ac->ac_b_ex.fe_len;
                         pa->pa_len -= ac->ac_b_ex.fe_len;
                         spin_unlock(&pa->pa_lock);
-                        /*
-                         * We want to add the pa to the right bucket.
-                         * Remove it from the list and while adding
-                         * make sure the list to which we are adding
-                         * doesn't grow big.
-                         */
-                        if (likely(pa->pa_free)) {
-                                spin_lock(pa->pa_obj_lock);
-                                list_del_rcu(&pa->pa_inode_list);
-                                spin_unlock(pa->pa_obj_lock);
-                                ext4_mb_add_n_trim(ac);
-                        }
                 }
-                ext4_mb_put_pa(ac, ac->ac_sb, pa);
         }
         if (ac->alloc_semp)
                 up_read(ac->alloc_semp);
+        if (pa) {
+                /*
+                 * We want to add the pa to the right bucket.
+                 * Remove it from the list and while adding
+                 * make sure the list to which we are adding
+                 * doesn't grow big.  We need to release
+                 * alloc_semp before calling ext4_mb_add_n_trim()
+                 */
+                if (pa->pa_linear && likely(pa->pa_free)) {
+                        spin_lock(pa->pa_obj_lock);
+                        list_del_rcu(&pa->pa_inode_list);
+                        spin_unlock(pa->pa_obj_lock);
+                        ext4_mb_add_n_trim(ac);
+                }
+                ext4_mb_put_pa(ac, ac->ac_sb, pa);
+        }
         if (ac->ac_bitmap_page)
                 page_cache_release(ac->ac_bitmap_page);
         if (ac->ac_buddy_page)
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 734abca25e35..fe64d9f79852 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -481,7 +481,7 @@ int ext4_ext_migrate(struct inode *inode)
                                         + 1);
         if (IS_ERR(handle)) {
                 retval = PTR_ERR(handle);
-                goto err_out;
+                return retval;
         }
         tmp_inode = ext4_new_inode(handle,
                                 inode->i_sb->s_root->d_inode,
@@ -489,8 +489,7 @@ int ext4_ext_migrate(struct inode *inode)
         if (IS_ERR(tmp_inode)) {
                 retval = -ENOMEM;
                 ext4_journal_stop(handle);
-                tmp_inode = NULL;
-                goto err_out;
+                return retval;
         }
         i_size_write(tmp_inode, i_size_read(inode));
         /*
@@ -618,8 +617,7 @@ err_out:
 
         ext4_journal_stop(handle);
 
-        if (tmp_inode)
-                iput(tmp_inode);
+        iput(tmp_inode);
 
         return retval;
 }
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e5f06a5f045e..a5732c58f676 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3046,14 +3046,17 @@ static void ext4_write_super(struct super_block *sb)
 static int ext4_sync_fs(struct super_block *sb, int wait)
 {
         int ret = 0;
+        tid_t target;
 
         trace_mark(ext4_sync_fs, "dev %s wait %d", sb->s_id, wait);
         sb->s_dirt = 0;
         if (EXT4_SB(sb)->s_journal) {
-                if (wait)
-                        ret = ext4_force_commit(sb);
-                else
-                        jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, NULL);
+                if (jbd2_journal_start_commit(EXT4_SB(sb)->s_journal,
+                                              &target)) {
+                        if (wait)
+                                jbd2_log_wait_commit(EXT4_SB(sb)->s_journal,
+                                                     target);
+                }
         } else {
                 ext4_commit_super(sb, EXT4_SB(sb)->s_es, wait);
         }
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index eb343008eded..58144102bf25 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -450,7 +450,7 @@ int __jbd2_log_space_left(journal_t *journal)
 }
 
 /*
- * Called under j_state_lock.  Returns true if a transaction was started.
+ * Called under j_state_lock.  Returns true if a transaction commit was started.
  */
 int __jbd2_log_start_commit(journal_t *journal, tid_t target)
 {
@@ -518,7 +518,8 @@ int jbd2_journal_force_commit_nested(journal_t *journal)
 
 /*
  * Start a commit of the current running transaction (if any).  Returns true
- * if a transaction was started, and fills its tid in at *ptid
+ * if a transaction is going to be committed (or is currently already
+ * committing), and fills its tid in at *ptid
  */
 int jbd2_journal_start_commit(journal_t *journal, tid_t *ptid)
 {
@@ -528,15 +529,19 @@ int jbd2_journal_start_commit(journal_t *journal, tid_t *ptid)
         if (journal->j_running_transaction) {
                 tid_t tid = journal->j_running_transaction->t_tid;
 
-                ret = __jbd2_log_start_commit(journal, tid);
-                if (ret && ptid)
+                __jbd2_log_start_commit(journal, tid);
+                /* There's a running transaction and we've just made sure
+                 * it's commit has been scheduled. */
+                if (ptid)
                         *ptid = tid;
-        } else if (journal->j_committing_transaction && ptid) {
+                ret = 1;
+        } else if (journal->j_committing_transaction) {
                 /*
                  * If ext3_write_super() recently started a commit, then we
                  * have to wait for completion of that transaction
                  */
-                *ptid = journal->j_committing_transaction->t_tid;
+                if (ptid)
+                        *ptid = journal->j_committing_transaction->t_tid;
                 ret = 1;
         }
         spin_unlock(&journal->j_state_lock);
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 46b4e347ed7d..28ce21d8598e 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -2129,26 +2129,46 @@ done:
 }
 
 /*
- * This function must be called when inode is journaled in ordered mode
- * before truncation happens. It starts writeout of truncated part in
- * case it is in the committing transaction so that we stand to ordered
- * mode consistency guarantees.
+ * File truncate and transaction commit interact with each other in a
+ * non-trivial way.  If a transaction writing data block A is
+ * committing, we cannot discard the data by truncate until we have
+ * written them.  Otherwise if we crashed after the transaction with
+ * write has committed but before the transaction with truncate has
+ * committed, we could see stale data in block A.  This function is a
+ * helper to solve this problem.  It starts writeout of the truncated
+ * part in case it is in the committing transaction.
+ *
+ * Filesystem code must call this function when inode is journaled in
+ * ordered mode before truncation happens and after the inode has been
+ * placed on orphan list with the new inode size. The second condition
+ * avoids the race that someone writes new data and we start
+ * committing the transaction after this function has been called but
+ * before a transaction for truncate is started (and furthermore it
+ * allows us to optimize the case where the addition to orphan list
+ * happens in the same transaction as write --- we don't have to write
+ * any data in such case).
  */
-int jbd2_journal_begin_ordered_truncate(struct jbd2_inode *inode,
+int jbd2_journal_begin_ordered_truncate(journal_t *journal,
+                                        struct jbd2_inode *jinode,
                                         loff_t new_size)
 {
-        journal_t *journal;
-        transaction_t *commit_trans;
+        transaction_t *inode_trans, *commit_trans;
         int ret = 0;
 
-        if (!inode->i_transaction && !inode->i_next_transaction)
+        /* This is a quick check to avoid locking if not necessary */
+        if (!jinode->i_transaction)
                 goto out;
-        journal = inode->i_transaction->t_journal;
+        /* Locks are here just to force reading of recent values, it is
+         * enough that the transaction was not committing before we started
+         * a transaction adding the inode to orphan list */
         spin_lock(&journal->j_state_lock);
         commit_trans = journal->j_committing_transaction;
         spin_unlock(&journal->j_state_lock);
-        if (inode->i_transaction == commit_trans) {
-                ret = filemap_fdatawrite_range(inode->i_vfs_inode->i_mapping,
+        spin_lock(&journal->j_list_lock);
+        inode_trans = jinode->i_transaction;
+        spin_unlock(&journal->j_list_lock);
+        if (inode_trans == commit_trans) {
+                ret = filemap_fdatawrite_range(jinode->i_vfs_inode->i_mapping,
                         new_size, LLONG_MAX);
                 if (ret)
                         jbd2_journal_abort(journal, ret);
diff --git a/fs/namespace.c b/fs/namespace.c
index 228d8c4bfd18..06f8e63f6cb1 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -614,9 +614,11 @@ static inline void __mntput(struct vfsmount *mnt)
          */
         for_each_possible_cpu(cpu) {
                 struct mnt_writer *cpu_writer = &per_cpu(mnt_writers, cpu);
-                if (cpu_writer->mnt != mnt)
-                        continue;
                 spin_lock(&cpu_writer->lock);
+                if (cpu_writer->mnt != mnt) {
+                        spin_unlock(&cpu_writer->lock);
+                        continue;
+                }
                 atomic_add(cpu_writer->count, &mnt->__mnt_writers);
                 cpu_writer->count = 0;
                 /*
diff --git a/fs/notify/inotify/inotify.c b/fs/notify/inotify/inotify.c
index dae3f28f30d4..331f2e88e284 100644
--- a/fs/notify/inotify/inotify.c
+++ b/fs/notify/inotify/inotify.c
@@ -156,7 +156,7 @@ static int inotify_handle_get_wd(struct inotify_handle *ih,
         int ret;
 
         do {
-                if (unlikely(!idr_pre_get(&ih->idr, GFP_KERNEL)))
+                if (unlikely(!idr_pre_get(&ih->idr, GFP_NOFS)))
                         return -ENOSPC;
                 ret = idr_get_new_above(&ih->idr, watch, ih->last_wd+1, &watch->wd);
         } while (ret == -EAGAIN);
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index 3c3532e1307c..172850a9a12a 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -513,8 +513,10 @@ static inline int ocfs2_jbd2_file_inode(handle_t *handle, struct inode *inode)
 static inline int ocfs2_begin_ordered_truncate(struct inode *inode,
                                                loff_t new_size)
 {
-        return jbd2_journal_begin_ordered_truncate(&OCFS2_I(inode)->ip_jinode,
-                                                   new_size);
+        return jbd2_journal_begin_ordered_truncate(
+                                OCFS2_SB(inode->i_sb)->journal->j_journal,
+                                &OCFS2_I(inode)->ip_jinode,
+                                new_size);
 }
 
 #endif /* OCFS2_JOURNAL_H */
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 5267098532bf..a1a4cfe19210 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -48,8 +48,16 @@ int seq_open(struct file *file, const struct seq_operations *op)
          */
         file->f_version = 0;
 
-        /* SEQ files support lseek, but not pread/pwrite */
-        file->f_mode &= ~(FMODE_PREAD | FMODE_PWRITE);
+        /*
+         * seq_files support lseek() and pread().  They do not implement
+         * write() at all, but we clear FMODE_PWRITE here for historical
+         * reasons.
+         *
+         * If a client of seq_files a) implements file.write() and b) wishes to
+         * support pwrite() then that client will need to implement its own
+         * file.open() which calls seq_open() and then sets FMODE_PWRITE.
+         */
+        file->f_mode &= ~FMODE_PWRITE;
         return 0;
 }
 EXPORT_SYMBOL(seq_open);
@@ -131,6 +139,22 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
         int err = 0;
 
         mutex_lock(&m->lock);
+
+        /* Don't assume *ppos is where we left it */
+        if (unlikely(*ppos != m->read_pos)) {
+                m->read_pos = *ppos;
+                while ((err = traverse(m, *ppos)) == -EAGAIN)
+                        ;
+                if (err) {
+                        /* With prejudice... */
+                        m->read_pos = 0;
+                        m->version = 0;
+                        m->index = 0;
+                        m->count = 0;
+                        goto Done;
+                }
+        }
+
         /*
          * seq_file->op->..m_start/m_stop/m_next may do special actions
          * or optimisations based on the file->f_version, so we want to
@@ -230,8 +254,10 @@ Fill:
 Done:
         if (!copied)
                 copied = err;
-        else
+        else {
                 *ppos += copied;
+                m->read_pos += copied;
+        }
         file->f_version = m->version;
         mutex_unlock(&m->lock);
         return copied;
@@ -266,16 +292,18 @@ loff_t seq_lseek(struct file *file, loff_t offset, int origin)
                         if (offset < 0)
                                 break;
                         retval = offset;
-                        if (offset != file->f_pos) {
+                        if (offset != m->read_pos) {
                                 while ((retval=traverse(m, offset)) == -EAGAIN)
                                         ;
                                 if (retval) {
                                         /* with extreme prejudice... */
                                         file->f_pos = 0;
+                                        m->read_pos = 0;
                                         m->version = 0;
                                         m->index = 0;
                                         m->count = 0;
                                 } else {
+                                        m->read_pos = offset;
                                         retval = file->f_pos = offset;
                                 }
                         }
diff --git a/fs/super.c b/fs/super.c
index 61dce001dd57..8349ed6b1412 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -82,7 +82,22 @@ static struct super_block *alloc_super(struct file_system_type *type)
                  * lock ordering than usbfs:
                  */
                 lockdep_set_class(&s->s_lock, &type->s_lock_key);
-                down_write(&s->s_umount);
+                /*
+                 * sget() can have s_umount recursion.
+                 *
+                 * When it cannot find a suitable sb, it allocates a new
+                 * one (this one), and tries again to find a suitable old
+                 * one.
+                 *
+                 * In case that succeeds, it will acquire the s_umount
+                 * lock of the old one. Since these are clearly distrinct
+                 * locks, and this object isn't exposed yet, there's no
+                 * risk of deadlocks.
+                 *
+                 * Annotate this by putting this lock in a different
+                 * subclass.
+                 */
+                down_write_nested(&s->s_umount, SINGLE_DEPTH_NESTING);
                 s->s_count = S_BIAS;
                 atomic_set(&s->s_active, 1);
                 mutex_init(&s->s_vfs_rename_mutex);
diff --git a/fs/timerfd.c b/fs/timerfd.c
index 6a123b8ff3f5..b042bd7034b1 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -186,10 +186,9 @@ SYSCALL_DEFINE2(timerfd_create, int, clockid, int, flags)
         BUILD_BUG_ON(TFD_CLOEXEC != O_CLOEXEC);
         BUILD_BUG_ON(TFD_NONBLOCK != O_NONBLOCK);
 
-        if (flags & ~(TFD_CLOEXEC | TFD_NONBLOCK))
-                return -EINVAL;
-        if (clockid != CLOCK_MONOTONIC &&
-            clockid != CLOCK_REALTIME)
+        if ((flags & ~TFD_CREATE_FLAGS) ||
+            (clockid != CLOCK_MONOTONIC &&
+             clockid != CLOCK_REALTIME))
                 return -EINVAL;
 
         ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
@@ -201,7 +200,7 @@ SYSCALL_DEFINE2(timerfd_create, int, clockid, int, flags)
         hrtimer_init(&ctx->tmr, clockid, HRTIMER_MODE_ABS);
 
         ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx,
-                               flags & (O_CLOEXEC | O_NONBLOCK));
+                               flags & TFD_SHARED_FCNTL_FLAGS);
         if (ufd < 0)
                 kfree(ctx);
 
@@ -219,7 +218,8 @@ SYSCALL_DEFINE4(timerfd_settime, int, ufd, int, flags,
         if (copy_from_user(&ktmr, utmr, sizeof(ktmr)))
                 return -EFAULT;
 
-        if (!timespec_valid(&ktmr.it_value) ||
+        if ((flags & ~TFD_SETTIME_FLAGS) ||
+            !timespec_valid(&ktmr.it_value) ||
             !timespec_valid(&ktmr.it_interval))
                 return -EINVAL;
 
diff --git a/include/asm-frv/pgtable.h b/include/asm-frv/pgtable.h
index 83c51aba534b..e16fdb1f4f4f 100644
--- a/include/asm-frv/pgtable.h
+++ b/include/asm-frv/pgtable.h
@@ -478,7 +478,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 #define __swp_type(x)                   (((x).val >> 2) & 0x1f)
 #define __swp_offset(x)                 ((x).val >> 8)
 #define __swp_entry(type, offset)       ((swp_entry_t) { ((type) << 2) | ((offset) << 8) })
-#define __pte_to_swp_entry(pte)         ((swp_entry_t) { (pte).pte })
+#define __pte_to_swp_entry(_pte)        ((swp_entry_t) { (_pte).pte })
 #define __swp_entry_to_pte(x)           ((pte_t) { (x).val })
 
 static inline int pte_file(pte_t pte)
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 2aa283ab062b..1b16108a5417 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -171,8 +171,6 @@ struct bio {
 #define BIO_RW_FAILFAST_TRANSPORT       8
 #define BIO_RW_FAILFAST_DRIVER          9
 
-#define BIO_RW_SYNC     (BIO_RW_SYNCIO | BIO_RW_UNPLUG)
-
 #define bio_rw_flagged(bio, flag)       ((bio)->bi_rw & (1 << (flag)))
 
 /*
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index ed12e8fd8cf7..d960889e92ef 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -15,6 +15,7 @@ enum blktrace_cat {
         BLK_TC_WRITE    = 1 << 1,       /* writes */
         BLK_TC_BARRIER  = 1 << 2,       /* barrier */
         BLK_TC_SYNC     = 1 << 3,       /* sync IO */
+        BLK_TC_SYNCIO   = BLK_TC_SYNC,
         BLK_TC_QUEUE    = 1 << 4,       /* queueing/merging */
         BLK_TC_REQUEUE  = 1 << 5,       /* requeueing */
         BLK_TC_ISSUE    = 1 << 6,       /* issue */
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 3e68469c1885..f0413845f20e 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -121,6 +121,7 @@ struct dma_chan_percpu {
  * @local: per-cpu pointer to a struct dma_chan_percpu
  * @client-count: how many clients are using this channel
  * @table_count: number of appearances in the mem-to-mem allocation table
+ * @private: private data for certain client-channel associations
  */
 struct dma_chan {
         struct dma_device *device;
@@ -134,6 +135,7 @@ struct dma_chan {
         struct dma_chan_percpu *local;
         int client_count;
         int table_count;
+        void *private;
 };
 
 /**
diff --git a/include/linux/firmware-map.h b/include/linux/firmware-map.h
index 6e199c8dfacc..cca686b39123 100644
--- a/include/linux/firmware-map.h
+++ b/include/linux/firmware-map.h
@@ -1,7 +1,7 @@
 /*
  * include/linux/firmware-map.h:
  *  Copyright (C) 2008 SUSE LINUX Products GmbH
- *  by Bernhard Walle <bwalle@suse.de>
+ *  by Bernhard Walle <bernhard.walle@gmx.de>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License v2.0 as published by
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6022f44043f2..92734c0012e6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -54,24 +54,30 @@ struct inodes_stat_t {
 #define MAY_ACCESS 16
 #define MAY_OPEN 32
 
+/*
+ * flags in file.f_mode.  Note that FMODE_READ and FMODE_WRITE must correspond
+ * to O_WRONLY and O_RDWR via the strange trick in __dentry_open()
+ */
+
 /* file is open for reading */
 #define FMODE_READ              ((__force fmode_t)1)
 /* file is open for writing */
 #define FMODE_WRITE             ((__force fmode_t)2)
 /* file is seekable */
 #define FMODE_LSEEK             ((__force fmode_t)4)
-/* file can be accessed using pread/pwrite */
+/* file can be accessed using pread */
 #define FMODE_PREAD             ((__force fmode_t)8)
-#define FMODE_PWRITE            FMODE_PREAD     /* These go hand in hand */
+/* file can be accessed using pwrite */
+#define FMODE_PWRITE            ((__force fmode_t)16)
 /* File is opened for execution with sys_execve / sys_uselib */
-#define FMODE_EXEC              ((__force fmode_t)16)
+#define FMODE_EXEC              ((__force fmode_t)32)
 /* File is opened with O_NDELAY (only set for block devices) */
-#define FMODE_NDELAY            ((__force fmode_t)32)
+#define FMODE_NDELAY            ((__force fmode_t)64)
 /* File is opened with O_EXCL (only set for block devices) */
-#define FMODE_EXCL              ((__force fmode_t)64)
+#define FMODE_EXCL              ((__force fmode_t)128)
 /* File is opened using open(.., 3, ..) and is writeable only for ioctls
    (specialy hack for floppy.c) */
-#define FMODE_WRITE_IOCTL       ((__force fmode_t)128)
+#define FMODE_WRITE_IOCTL       ((__force fmode_t)256)
 
 /*
  * Don't update ctime and mtime.
@@ -87,10 +93,10 @@ struct inodes_stat_t {
 #define WRITE 1
 #define READA 2         /* read-ahead  - don't block if no resources */
 #define SWRITE 3        /* for ll_rw_block() - wait for buffer lock */
-#define READ_SYNC       (READ | (1 << BIO_RW_SYNC))
+#define READ_SYNC       (READ | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG))
 #define READ_META       (READ | (1 << BIO_RW_META))
-#define WRITE_SYNC      (WRITE | (1 << BIO_RW_SYNC))
-#define SWRITE_SYNC     (SWRITE | (1 << BIO_RW_SYNC))
+#define WRITE_SYNC      (WRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG))
+#define SWRITE_SYNC     (SWRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG))
 #define WRITE_BARRIER   (WRITE | (1 << BIO_RW_BARRIER))
 #define DISCARD_NOBARRIER (1 << BIO_RW_DISCARD)
 #define DISCARD_BARRIER ((1 << BIO_RW_DISCARD) | (1 << BIO_RW_BARRIER))
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index b28b37eb11c6..4d248b3f1323 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1150,7 +1150,8 @@ extern int	   jbd2_journal_clear_err  (journal_t *);
 extern int         jbd2_journal_bmap(journal_t *, unsigned long, unsigned long long *);
 extern int         jbd2_journal_force_commit(journal_t *);
 extern int         jbd2_journal_file_inode(handle_t *handle, struct jbd2_inode *inode);
-extern int         jbd2_journal_begin_ordered_truncate(struct jbd2_inode *inode, loff_t new_size);
+extern int         jbd2_journal_begin_ordered_truncate(journal_t *journal,
+                                struct jbd2_inode *inode, loff_t new_size);
 extern void        jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode, struct inode *inode);
 extern void        jbd2_journal_release_jbd_inode(journal_t *journal, struct jbd2_inode *jinode);
 
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 5715f1907601..0424326f1679 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -58,10 +58,10 @@ struct kvm_irqchip {
         __u32 pad;
         union {
                 char dummy[512];  /* reserving space */
-#ifdef CONFIG_X86
+#ifdef __KVM_HAVE_PIT
                 struct kvm_pic_state pic;
 #endif
-#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+#ifdef __KVM_HAVE_IOAPIC
                 struct kvm_ioapic_state ioapic;
 #endif
         } chip;
@@ -384,16 +384,16 @@ struct kvm_trace_rec {
 #define KVM_CAP_MP_STATE 14
 #define KVM_CAP_COALESCED_MMIO 15
 #define KVM_CAP_SYNC_MMU 16  /* Changes to host mmap are reflected in guest */
-#if defined(CONFIG_X86)||defined(CONFIG_IA64)
+#ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
 #define KVM_CAP_DEVICE_ASSIGNMENT 17
 #endif
 #define KVM_CAP_IOMMU 18
-#if defined(CONFIG_X86)
+#ifdef __KVM_HAVE_MSI
 #define KVM_CAP_DEVICE_MSI 20
 #endif
 /* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
 #define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
-#if defined(CONFIG_X86)
+#ifdef __KVM_HAVE_USER_NMI
 #define KVM_CAP_USER_NMI 22
 #endif
 
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ec49d0be7f52..bf6f703642fc 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -285,6 +285,7 @@ void kvm_free_physmem(struct kvm *kvm);
 struct  kvm *kvm_arch_create_vm(void);
 void kvm_arch_destroy_vm(struct kvm *kvm);
 void kvm_free_all_assigned_devices(struct kvm *kvm);
+void kvm_arch_sync_events(struct kvm *kvm);
 
 int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
 int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 323561582c10..065cdf8c09fb 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1041,10 +1041,23 @@ extern void free_bootmem_with_active_regions(int nid,
 typedef int (*work_fn_t)(unsigned long, unsigned long, void *);
 extern void work_with_active_regions(int nid, work_fn_t work_fn, void *data);
 extern void sparse_memory_present_with_active_regions(int nid);
-#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
-extern int early_pfn_to_nid(unsigned long pfn);
-#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
 #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */
+
+#if !defined(CONFIG_ARCH_POPULATES_NODE_MAP) && \
+    !defined(CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID)
+static inline int __early_pfn_to_nid(unsigned long pfn)
+{
+        return 0;
+}
+#else
+/* please see mm/page_alloc.c */
+extern int __meminit early_pfn_to_nid(unsigned long pfn);
+#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
+/* there is a per-arch backend function. */
+extern int __meminit __early_pfn_to_nid(unsigned long pfn);
+#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
+#endif
+
 extern void set_dma_reserve(unsigned long new_dma_reserve);
 extern void memmap_init_zone(unsigned long, int, unsigned long,
                                 unsigned long, enum memmap_context);
@@ -1159,6 +1172,7 @@ extern int filemap_fault(struct vm_area_struct *, struct vm_fault *);
 
 /* mm/page-writeback.c */
 int write_one_page(struct page *page, int wait);
+void task_dirty_inc(struct task_struct *tsk);
 
 /* readahead.c */
 #define VM_MAX_READAHEAD        128     /* kbytes */
@@ -1304,5 +1318,6 @@ void vmemmap_populate_print_last(void);
 
 extern void *alloc_locked_buffer(size_t size);
 extern void free_locked_buffer(void *buffer, size_t size);
+extern void release_locked_buffer(void *buffer, size_t size);
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MM_H */
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 09c14e213b63..1aca6cebbb78 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -1071,7 +1071,7 @@ void sparse_init(void);
 #endif /* CONFIG_SPARSEMEM */
 
 #ifdef CONFIG_NODES_SPAN_OTHER_NODES
-#define early_pfn_in_nid(pfn, nid)      (early_pfn_to_nid(pfn) == (nid))
+bool early_pfn_in_nid(unsigned long pfn, int nid);
 #else
 #define early_pfn_in_nid(pfn, nid)      (1)
 #endif
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 52a9fe08451c..114b8192eab9 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1312,6 +1312,7 @@
 #define PCI_DEVICE_ID_VIA_VT3351        0x0351
 #define PCI_DEVICE_ID_VIA_VT3364        0x0364
 #define PCI_DEVICE_ID_VIA_8371_0        0x0391
+#define PCI_DEVICE_ID_VIA_6415          0x0415
 #define PCI_DEVICE_ID_VIA_8501_0        0x0501
 #define PCI_DEVICE_ID_VIA_82C561        0x0561
 #define PCI_DEVICE_ID_VIA_82C586_1      0x0571
@@ -1444,6 +1445,7 @@
 #define PCI_DEVICE_ID_DIGI_DF_M_E       0x0071
 #define PCI_DEVICE_ID_DIGI_DF_M_IOM2_A  0x0072
 #define PCI_DEVICE_ID_DIGI_DF_M_A       0x0073
+#define PCI_DEVICE_ID_DIGI_NEO_8        0x00B1
 #define PCI_DEVICE_ID_NEO_2DB9          0x00C8
 #define PCI_DEVICE_ID_NEO_2DB9PRI       0x00C9
 #define PCI_DEVICE_ID_NEO_2RJ45         0x00CA
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 40ea5058c2ec..f616f31576d7 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -19,6 +19,7 @@ struct seq_file {
         size_t from;
         size_t count;
         loff_t index;
+        loff_t read_pos;
         u64 version;
         struct mutex lock;
         const struct seq_operations *op;
diff --git a/include/linux/timerfd.h b/include/linux/timerfd.h
index 86cb0501d3e2..2d0792983f8c 100644
--- a/include/linux/timerfd.h
+++ b/include/linux/timerfd.h
@@ -11,13 +11,21 @@
 /* For O_CLOEXEC and O_NONBLOCK */
 #include <linux/fcntl.h>
 
-/* Flags for timerfd_settime.  */
+/*
+ * CAREFUL: Check include/asm-generic/fcntl.h when defining
+ * new flags, since they might collide with O_* ones. We want
+ * to re-use O_* flags that couldn't possibly have a meaning
+ * from eventfd, in order to leave a free define-space for
+ * shared O_* flags.
+ */
 #define TFD_TIMER_ABSTIME (1 << 0)
-
-/* Flags for timerfd_create.  */
 #define TFD_CLOEXEC O_CLOEXEC
 #define TFD_NONBLOCK O_NONBLOCK
 
+#define TFD_SHARED_FCNTL_FLAGS (TFD_CLOEXEC | TFD_NONBLOCK)
+/* Flags for timerfd_create.  */
+#define TFD_CREATE_FLAGS TFD_SHARED_FCNTL_FLAGS
+/* Flags for timerfd_settime.  */
+#define TFD_SETTIME_FLAGS TFD_TIMER_ABSTIME
 
 #endif /* _LINUX_TIMERFD_H */
-
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 506e7620a986..9c0890c7a06a 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -84,6 +84,10 @@ extern struct vm_struct *get_vm_area_caller(unsigned long size,
                                         unsigned long flags, void *caller);
 extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
                                         unsigned long start, unsigned long end);
+extern struct vm_struct *__get_vm_area_caller(unsigned long size,
+                                        unsigned long flags,
+                                        unsigned long start, unsigned long end,
+                                        void *caller);
 extern struct vm_struct *get_vm_area_node(unsigned long size,
                                           unsigned long flags, int node,
                                           gfp_t gfp_mask);
diff --git a/kernel/Makefile b/kernel/Makefile
index 170a9213c1b6..e4791b3ba55d 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_UID16) += uid16.o
 obj-$(CONFIG_MODULES) += module.o
 obj-$(CONFIG_KALLSYMS) += kallsyms.o
 obj-$(CONFIG_PM) += power/
+obj-$(CONFIG_FREEZER) += power/
 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
 obj-$(CONFIG_KEXEC) += kexec.o
 obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index e14db9c089b9..9edb5c4b79b4 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1122,8 +1122,8 @@ static void cgroup_kill_sb(struct super_block *sb) {
 
         mutex_unlock(&cgroup_mutex);
 
-        kfree(root);
         kill_litter_super(sb);
+        kfree(root);
 }
 
 static struct file_system_type cgroup_fs_type = {
diff --git a/kernel/futex.c b/kernel/futex.c
index f89d373a9c6d..438701adce23 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1165,6 +1165,7 @@ static int futex_wait(u32 __user *uaddr, int fshared,
                       u32 val, ktime_t *abs_time, u32 bitset, int clockrt)
 {
         struct task_struct *curr = current;
+        struct restart_block *restart;
         DECLARE_WAITQUEUE(wait, curr);
         struct futex_hash_bucket *hb;
         struct futex_q q;
@@ -1216,11 +1217,13 @@ retry:
 
                 if (!ret)
                         goto retry;
-                return ret;
+                goto out;
         }
         ret = -EWOULDBLOCK;
-        if (uval != val)
-                goto out_unlock_put_key;
+        if (unlikely(uval != val)) {
+                queue_unlock(&q, hb);
+                goto out_put_key;
+        }
 
         /* Only actually queue if *uaddr contained val.  */
         queue_me(&q, hb);
@@ -1284,38 +1287,38 @@ retry:
          */
 
         /* If we were woken (and unqueued), we succeeded, whatever. */
+        ret = 0;
         if (!unqueue_me(&q))
-                return 0;
+                goto out_put_key;
+        ret = -ETIMEDOUT;
         if (rem)
-                return -ETIMEDOUT;
+                goto out_put_key;
 
         /*
          * We expect signal_pending(current), but another thread may
          * have handled it for us already.
          */
+        ret = -ERESTARTSYS;
         if (!abs_time)
-                return -ERESTARTSYS;
-        else {
-                struct restart_block *restart;
-                restart = &current_thread_info()->restart_block;
-                restart->fn = futex_wait_restart;
-                restart->futex.uaddr = (u32 *)uaddr;
-                restart->futex.val = val;
-                restart->futex.time = abs_time->tv64;
-                restart->futex.bitset = bitset;
-                restart->futex.flags = 0;
-
-                if (fshared)
-                        restart->futex.flags |= FLAGS_SHARED;
-                if (clockrt)
-                        restart->futex.flags |= FLAGS_CLOCKRT;
-                return -ERESTART_RESTARTBLOCK;
-        }
+                goto out_put_key;
 
-out_unlock_put_key:
-        queue_unlock(&q, hb);
-        put_futex_key(fshared, &q.key);
+        restart = &current_thread_info()->restart_block;
+        restart->fn = futex_wait_restart;
+        restart->futex.uaddr = (u32 *)uaddr;
+        restart->futex.val = val;
+        restart->futex.time = abs_time->tv64;
+        restart->futex.bitset = bitset;
+        restart->futex.flags = 0;
+
+        if (fshared)
+                restart->futex.flags |= FLAGS_SHARED;
+        if (clockrt)
+                restart->futex.flags |= FLAGS_CLOCKRT;
 
+        ret = -ERESTART_RESTARTBLOCK;
+
+out_put_key:
+        put_futex_key(fshared, &q.key);
 out:
         return ret;
 }
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 2313a4cc14ea..e976e505648d 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -681,6 +681,33 @@ static void cpu_timer_fire(struct k_itimer *timer)
 }
 
 /*
+ * Sample a process (thread group) timer for the given group_leader task.
+ * Must be called with tasklist_lock held for reading.
+ */
+static int cpu_timer_sample_group(const clockid_t which_clock,
+                                  struct task_struct *p,
+                                  union cpu_time_count *cpu)
+{
+        struct task_cputime cputime;
+
+        thread_group_cputimer(p, &cputime);
+        switch (CPUCLOCK_WHICH(which_clock)) {
+        default:
+                return -EINVAL;
+        case CPUCLOCK_PROF:
+                cpu->cpu = cputime_add(cputime.utime, cputime.stime);
+                break;
+        case CPUCLOCK_VIRT:
+                cpu->cpu = cputime.utime;
+                break;
+        case CPUCLOCK_SCHED:
+                cpu->sched = cputime.sum_exec_runtime + task_delta_exec(p);
+                break;
+        }
+        return 0;
+}
+
+/*
  * Guts of sys_timer_settime for CPU timers.
  * This is called with the timer locked and interrupts disabled.
  * If we return TIMER_RETRY, it's necessary to release the timer's lock
@@ -741,7 +768,7 @@ int posix_cpu_timer_set(struct k_itimer *timer, int flags,
         if (CPUCLOCK_PERTHREAD(timer->it_clock)) {
                 cpu_clock_sample(timer->it_clock, p, &val);
         } else {
-                cpu_clock_sample_group(timer->it_clock, p, &val);
+                cpu_timer_sample_group(timer->it_clock, p, &val);
         }
 
         if (old) {
@@ -889,7 +916,7 @@ void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec *itp)
                         read_unlock(&tasklist_lock);
                         goto dead;
                 } else {
-                        cpu_clock_sample_group(timer->it_clock, p, &now);
+                        cpu_timer_sample_group(timer->it_clock, p, &now);
                         clear_dead = (unlikely(p->exit_state) &&
                                       thread_group_empty(p));
                 }
@@ -1244,7 +1271,7 @@ void posix_cpu_timer_schedule(struct k_itimer *timer)
                         clear_dead_task(timer, now);
                         goto out_unlock;
                 }
-                cpu_clock_sample_group(timer->it_clock, p, &now);
+                cpu_timer_sample_group(timer->it_clock, p, &now);
                 bump_cpu_timer(timer, now);
                 /* Leave the tasklist_lock locked for the call below.  */
         }
@@ -1409,33 +1436,6 @@ void run_posix_cpu_timers(struct task_struct *tsk)
 }
 
 /*
- * Sample a process (thread group) timer for the given group_leader task.
- * Must be called with tasklist_lock held for reading.
- */
-static int cpu_timer_sample_group(const clockid_t which_clock,
-                                  struct task_struct *p,
-                                  union cpu_time_count *cpu)
-{
-        struct task_cputime cputime;
-
-        thread_group_cputimer(p, &cputime);
-        switch (CPUCLOCK_WHICH(which_clock)) {
-        default:
-                return -EINVAL;
-        case CPUCLOCK_PROF:
-                cpu->cpu = cputime_add(cputime.utime, cputime.stime);
-                break;
-        case CPUCLOCK_VIRT:
-                cpu->cpu = cputime.utime;
-                break;
-        case CPUCLOCK_SCHED:
-                cpu->sched = cputime.sum_exec_runtime + task_delta_exec(p);
-                break;
-        }
-        return 0;
-}
-
-/*
  * Set one of the process-wide special case CPU timers.
  * The tsk->sighand->siglock must be held by the caller.
  * The *newval argument is relative and we update it to be absolute, *oldval
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index d7a10167a25b..720ea4f781bd 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -3,7 +3,7 @@ ifeq ($(CONFIG_PM_DEBUG),y)
 EXTRA_CFLAGS    +=      -DDEBUG
 endif
 
-obj-y                           := main.o
+obj-$(CONFIG_PM)                += main.o
 obj-$(CONFIG_PM_SLEEP)          += console.o
 obj-$(CONFIG_FREEZER)           += process.o
 obj-$(CONFIG_HIBERNATION)       += swsusp.o disk.o snapshot.o swap.o user.o
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 6da14358537c..505f319e489c 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -60,6 +60,7 @@ static struct block_device *resume_bdev;
 static int submit(int rw, pgoff_t page_off, struct page *page,
                         struct bio **bio_chain)
 {
+        const int bio_rw = rw | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG);
         struct bio *bio;
 
         bio = bio_alloc(__GFP_WAIT | __GFP_HIGH, 1);
@@ -80,7 +81,7 @@ static int submit(int rw, pgoff_t page_off, struct page *page,
         bio_get(bio);
 
         if (bio_chain == NULL) {
-                submit_bio(rw | (1 << BIO_RW_SYNC), bio);
+                submit_bio(bio_rw, bio);
                 wait_on_page_locked(page);
                 if (rw == READ)
                         bio_set_pages_dirty(bio);
@@ -90,7 +91,7 @@ static int submit(int rw, pgoff_t page_off, struct page *page,
                         get_page(page); /* These pages are freed later */
                 bio->bi_private = *bio_chain;
                 *bio_chain = bio;
-                submit_bio(rw | (1 << BIO_RW_SYNC), bio);
+                submit_bio(bio_rw, bio);
         }
         return 0;
 }
diff --git a/kernel/sched.c b/kernel/sched.c
index 5dc3b0a5d35a..2492b9b3fed4 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -6944,20 +6944,26 @@ static void free_rootdomain(struct root_domain *rd)
 
 static void rq_attach_root(struct rq *rq, struct root_domain *rd)
 {
+        struct root_domain *old_rd = NULL;
         unsigned long flags;
 
         spin_lock_irqsave(&rq->lock, flags);
 
         if (rq->rd) {
-                struct root_domain *old_rd = rq->rd;
+                old_rd = rq->rd;
 
                 if (cpumask_test_cpu(rq->cpu, old_rd->online))
                         set_rq_offline(rq);
 
                 cpumask_clear_cpu(rq->cpu, old_rd->span);
 
-                if (atomic_dec_and_test(&old_rd->refcount))
-                        free_rootdomain(old_rd);
+                /*
+                 * If we dont want to free the old_rt yet then
+                 * set old_rd to NULL to skip the freeing later
+                 * in this function:
+                 */
+                if (!atomic_dec_and_test(&old_rd->refcount))
+                        old_rd = NULL;
         }
 
         atomic_inc(&rd->refcount);
@@ -6968,6 +6974,9 @@ static void rq_attach_root(struct rq *rq, struct root_domain *rd)
                 set_rq_online(rq);
 
         spin_unlock_irqrestore(&rq->lock, flags);
+
+        if (old_rd)
+                free_rootdomain(old_rd);
 }
 
 static int __init_refok init_rootdomain(struct root_domain *rd, bool bootmem)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 3b91da064820..e82cb9e930cc 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -176,7 +176,7 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
 
         what |= ddir_act[rw & WRITE];
         what |= MASK_TC_BIT(rw, BARRIER);
-        what |= MASK_TC_BIT(rw, SYNC);
+        what |= MASK_TC_BIT(rw, SYNCIO);
         what |= MASK_TC_BIT(rw, AHEAD);
         what |= MASK_TC_BIT(rw, META);
         what |= MASK_TC_BIT(rw, DISCARD);
diff --git a/mm/mlock.c b/mm/mlock.c
index 037161d61b4e..cbe9e0581b75 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -660,7 +660,7 @@ void *alloc_locked_buffer(size_t size)
         return buffer;
 }
 
-void free_locked_buffer(void *buffer, size_t size)
+void release_locked_buffer(void *buffer, size_t size)
 {
         unsigned long pgsz = PAGE_ALIGN(size) >> PAGE_SHIFT;
 
@@ -670,6 +670,11 @@ void free_locked_buffer(void *buffer, size_t size)
         current->mm->locked_vm -= pgsz;
 
         up_write(&current->mm->mmap_sem);
+}
+
+void free_locked_buffer(void *buffer, size_t size)
+{
+        release_locked_buffer(buffer, size);
 
         kfree(buffer);
 }
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 3c84128596ba..74dc57c74349 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -240,7 +240,7 @@ void bdi_writeout_inc(struct backing_dev_info *bdi)
 }
 EXPORT_SYMBOL_GPL(bdi_writeout_inc);
 
-static inline void task_dirty_inc(struct task_struct *tsk)
+void task_dirty_inc(struct task_struct *tsk)
 {
         prop_inc_single(&vm_dirties, &tsk->dirties);
 }
@@ -1230,6 +1230,7 @@ int __set_page_dirty_nobuffers(struct page *page)
                                 __inc_zone_page_state(page, NR_FILE_DIRTY);
                                 __inc_bdi_stat(mapping->backing_dev_info,
                                                 BDI_RECLAIMABLE);
+                                task_dirty_inc(current);
                                 task_io_account_write(PAGE_CACHE_SIZE);
                         }
                         radix_tree_tag_set(&mapping->page_tree,
@@ -1262,7 +1263,7 @@ EXPORT_SYMBOL(redirty_page_for_writepage);
  * If the mapping doesn't provide a set_page_dirty a_op, then
  * just fall through and assume that it wants buffer_heads.
  */
-static int __set_page_dirty(struct page *page)
+int set_page_dirty(struct page *page)
 {
         struct address_space *mapping = page_mapping(page);
 
@@ -1280,14 +1281,6 @@ static int __set_page_dirty(struct page *page)
         }
         return 0;
 }
-
-int set_page_dirty(struct page *page)
-{
-        int ret = __set_page_dirty(page);
-        if (ret)
-                task_dirty_inc(current);
-        return ret;
-}
 EXPORT_SYMBOL(set_page_dirty);
 
 /*
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5675b3073854..5c44ed49ca93 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2989,7 +2989,7 @@ static int __meminit next_active_region_index_in_nid(int index, int nid)
  * was used and there are no special requirements, this is a convenient
  * alternative
  */
-int __meminit early_pfn_to_nid(unsigned long pfn)
+int __meminit __early_pfn_to_nid(unsigned long pfn)
 {
         int i;
 
@@ -3000,10 +3000,33 @@ int __meminit early_pfn_to_nid(unsigned long pfn)
                 if (start_pfn <= pfn && pfn < end_pfn)
                         return early_node_map[i].nid;
         }
+        /* This is a memory hole */
+        return -1;
+}
+#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
+
+int __meminit early_pfn_to_nid(unsigned long pfn)
+{
+        int nid;
 
+        nid = __early_pfn_to_nid(pfn);
+        if (nid >= 0)
+                return nid;
+        /* just returns 0 */
         return 0;
 }
-#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
+
+#ifdef CONFIG_NODES_SPAN_OTHER_NODES
+bool __meminit early_pfn_in_nid(unsigned long pfn, int node)
+{
+        int nid;
+
+        nid = __early_pfn_to_nid(pfn);
+        if (nid >= 0 && nid != node)
+                return false;
+        return true;
+}
+#endif
 
 /* Basic iterator support to walk early_node_map[] */
 #define for_each_active_range_index_in_nid(i, nid) \
diff --git a/mm/page_io.c b/mm/page_io.c
index dc6ce0afbded..3023c475e041 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -111,7 +111,7 @@ int swap_writepage(struct page *page, struct writeback_control *wbc)
                 goto out;
         }
         if (wbc->sync_mode == WB_SYNC_ALL)
-                rw |= (1 << BIO_RW_SYNC);
+                rw |= (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG);
         count_vm_event(PSWPOUT);
         set_page_writeback(page);
         unlock_page(page);
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 75f49d312e8c..4dd2636d0b92 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1106,6 +1106,14 @@ struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
 }
 EXPORT_SYMBOL_GPL(__get_vm_area);
 
+struct vm_struct *__get_vm_area_caller(unsigned long size, unsigned long flags,
+                                       unsigned long start, unsigned long end,
+                                       void *caller)
+{
+        return __get_vm_area_node(size, flags, start, end, -1, GFP_KERNEL,
+                                  caller);
+}
+
 /**
  *      get_vm_area  -  reserve a contiguous kernel virtual area
  *      @size:          size of the area
diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl
index b0246307aac4..12caa822a232 100644
--- a/scripts/bootgraph.pl
+++ b/scripts/bootgraph.pl
@@ -51,7 +51,7 @@ my %pidctr;
 
 while (<>) {
         my $line = $_;
-        if ($line =~ /([0-9\.]+)\] calling  ([a-zA-Z0-9\_]+)\+/) {
+        if ($line =~ /([0-9\.]+)\] calling  ([a-zA-Z0-9\_\.]+)\+/) {
                 my $func = $2;
                 if ($done == 0) {
                         $start{$func} = $1;
@@ -87,7 +87,7 @@ while (<>) {
                 $count = $count + 1;
         }
 
-        if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_]+)\+.*returned/) {
+        if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_\.]+)\+.*returned/) {
                 if ($done == 0) {
                         $end{$2} = $1;
                         $maxtime = $1;
diff --git a/scripts/markup_oops.pl b/scripts/markup_oops.pl
index d40449cafa84..528492bcba5b 100644
--- a/scripts/markup_oops.pl
+++ b/scripts/markup_oops.pl
@@ -1,4 +1,4 @@
-#!/usr/bin/perl -w
+#!/usr/bin/perl
 
 use File::Basename;
 
@@ -29,27 +29,151 @@ my $filename = $vmlinux_name;
 my $target = "0";
 my $function;
 my $module = "";
-my $func_offset;
+my $func_offset = 0;
 my $vmaoffset = 0;
 
+my %regs;
+
+
+sub parse_x86_regs
+{
+        my ($line) = @_;
+        if ($line =~ /EAX: ([0-9a-f]+) EBX: ([0-9a-f]+) ECX: ([0-9a-f]+) EDX: ([0-9a-f]+)/) {
+                $regs{"%eax"} = $1;
+                $regs{"%ebx"} = $2;
+                $regs{"%ecx"} = $3;
+                $regs{"%edx"} = $4;
+        }
+        if ($line =~ /ESI: ([0-9a-f]+) EDI: ([0-9a-f]+) EBP: ([0-9a-f]+) ESP: ([0-9a-f]+)/) {
+                $regs{"%esi"} = $1;
+                $regs{"%edi"} = $2;
+                $regs{"%esp"} = $4;
+        }
+        if ($line =~ /RAX: ([0-9a-f]+) RBX: ([0-9a-f]+) RCX: ([0-9a-f]+)/) {
+                $regs{"%eax"} = $1;
+                $regs{"%ebx"} = $2;
+                $regs{"%ecx"} = $3;
+        }
+        if ($line =~ /RDX: ([0-9a-f]+) RSI: ([0-9a-f]+) RDI: ([0-9a-f]+)/) {
+                $regs{"%edx"} = $1;
+                $regs{"%esi"} = $2;
+                $regs{"%edi"} = $3;
+        }
+        if ($line =~ /RBP: ([0-9a-f]+) R08: ([0-9a-f]+) R09: ([0-9a-f]+)/) {
+                $regs{"%r08"} = $2;
+                $regs{"%r09"} = $3;
+        }
+        if ($line =~ /R10: ([0-9a-f]+) R11: ([0-9a-f]+) R12: ([0-9a-f]+)/) {
+                $regs{"%r10"} = $1;
+                $regs{"%r11"} = $2;
+                $regs{"%r12"} = $3;
+        }
+        if ($line =~ /R13: ([0-9a-f]+) R14: ([0-9a-f]+) R15: ([0-9a-f]+)/) {
+                $regs{"%r13"} = $1;
+                $regs{"%r14"} = $2;
+                $regs{"%r15"} = $3;
+        }
+}
+
+sub reg_name
+{
+        my ($reg) = @_;
+        $reg =~ s/r(.)x/e\1x/;
+        $reg =~ s/r(.)i/e\1i/;
+        $reg =~ s/r(.)p/e\1p/;
+        return $reg;
+}
+
+sub process_x86_regs
+{
+        my ($line, $cntr) = @_;
+        my $str = "";
+        if (length($line) < 40) {
+                return ""; # not an asm istruction
+        }
+
+        # find the arguments to the instruction
+        if ($line =~ /([0-9a-zA-Z\,\%\(\)\-\+]+)$/) {
+                $lastword = $1;
+        } else {
+                return "";
+        }
+
+        # we need to find the registers that get clobbered,
+        # since their value is no longer relevant for previous
+        # instructions in the stream.
+
+        $clobber = $lastword;
+        # first, remove all memory operands, they're read only
+        $clobber =~ s/\([a-z0-9\%\,]+\)//g;
+        # then, remove everything before the comma, thats the read part
+        $clobber =~ s/.*\,//g;
+
+        # if this is the instruction that faulted, we haven't actually done
+        # the write yet... nothing is clobbered.
+        if ($cntr == 0) {
+                $clobber = "";
+        }
+
+        foreach $reg (keys(%regs)) {
+                my $clobberprime = reg_name($clobber);
+                my $lastwordprime = reg_name($lastword);
+                my $val = $regs{$reg};
+                if ($val =~ /^[0]+$/) {
+                        $val = "0";
+                } else {
+                        $val =~ s/^0*//;
+                }
+
+                # first check if we're clobbering this register; if we do
+                # we print it with a =>, and then delete its value
+                if ($clobber =~ /$reg/ || $clobberprime =~ /$reg/) {
+                        if (length($val) > 0) {
+                                $str = $str . " $reg => $val ";
+                        }
+                        $regs{$reg} = "";
+                        $val = "";
+                }
+                # now check if we're reading this register
+                if ($lastword =~ /$reg/ || $lastwordprime =~ /$reg/) {
+                        if (length($val) > 0) {
+                                $str = $str . " $reg = $val ";
+                        }
+                }
+        }
+        return $str;
+}
+
+# parse the oops
 while (<STDIN>) {
         my $line = $_;
         if ($line =~ /EIP: 0060:\[\<([a-z0-9]+)\>\]/) {
                 $target = $1;
         }
+        if ($line =~ /RIP: 0010:\[\<([a-z0-9]+)\>\]/) {
+                $target = $1;
+        }
         if ($line =~ /EIP is at ([a-zA-Z0-9\_]+)\+(0x[0-9a-f]+)\/0x[a-f0-9]/) {
                 $function = $1;
                 $func_offset = $2;
         }
+        if ($line =~ /RIP: 0010:\[\<[0-9a-f]+\>\]  \[\<[0-9a-f]+\>\] ([a-zA-Z0-9\_]+)\+(0x[0-9a-f]+)\/0x[a-f0-9]/) {
+                $function = $1;
+                $func_offset = $2;
+        }
 
         # check if it's a module
         if ($line =~ /EIP is at ([a-zA-Z0-9\_]+)\+(0x[0-9a-f]+)\/0x[a-f0-9]+\W\[([a-zA-Z0-9\_\-]+)\]/) {
                 $module = $3;
         }
+        if ($line =~ /RIP: 0010:\[\<[0-9a-f]+\>\]  \[\<[0-9a-f]+\>\] ([a-zA-Z0-9\_]+)\+(0x[0-9a-f]+)\/0x[a-f0-9]+\W\[([a-zA-Z0-9\_\-]+)\]/) {
+                $module = $3;
+        }
+        parse_x86_regs($line);
 }
 
 my $decodestart = hex($target) - hex($func_offset);
-my $decodestop = $decodestart + 8192;
+my $decodestop = hex($target) + 8192;
 if ($target eq "0") {
         print "No oops found!\n";
         print "Usage: \n";
@@ -84,6 +208,7 @@ my $counter = 0;
 my $state   = 0;
 my $center  = 0;
 my @lines;
+my @reglines;
 
 sub InRange {
         my ($address, $target) = @_;
@@ -188,16 +313,36 @@ while ($finish < $counter) {
 
 my $i;
 
-my $fulltext = "";
+
+# start annotating the registers in the asm.
+# this goes from the oopsing point back, so that the annotator
+# can track (opportunistically) which registers got written and
+# whos value no longer is relevant.
+
+$i = $center;
+while ($i >= $start) {
+        $reglines[$i] = process_x86_regs($lines[$i], $center - $i);
+        $i = $i - 1;
+}
+
 $i = $start;
 while ($i < $finish) {
+        my $line;
         if ($i == $center) {
-                $fulltext = $fulltext . "*$lines[$i]     <----- faulting instruction\n";
+                $line =  "*$lines[$i] ";
         } else {
-                $fulltext = $fulltext .  " $lines[$i]\n";
+                $line =  " $lines[$i] ";
+        }
+        print $line;
+        if (defined($reglines[$i]) && length($reglines[$i]) > 0) {
+                my $c = 60 - length($line);
+                while ($c > 0) { print " "; $c = $c - 1; };
+                print "| $reglines[$i]";
         }
+        if ($i == $center) {
+                print "<--- faulting instruction";
+        }
+        print "\n";
         $i = $i +1;
 }
 
-print $fulltext;
-
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 491b8b1b6abf..4eea60b1693e 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -210,6 +210,7 @@ static void do_usb_table(void *symval, unsigned long size,
 static int do_hid_entry(const char *filename,
                              struct hid_device_id *id, char *alias)
 {
+        id->bus = TO_NATIVE(id->bus);
         id->vendor = TO_NATIVE(id->vendor);
         id->product = TO_NATIVE(id->product);
 
diff --git a/scripts/package/mkspec b/scripts/package/mkspec
index 2500886fb90a..ee448cdc6a2b 100755
--- a/scripts/package/mkspec
+++ b/scripts/package/mkspec
@@ -86,6 +86,14 @@ echo "%endif"
 echo 'cp System.map $RPM_BUILD_ROOT'"/boot/System.map-$KERNELRELEASE"
 
 echo 'cp .config $RPM_BUILD_ROOT'"/boot/config-$KERNELRELEASE"
+
+echo "%ifnarch ppc64"
+echo 'cp vmlinux vmlinux.orig'
+echo 'bzip2 -9 vmlinux'
+echo 'mv vmlinux.bz2 $RPM_BUILD_ROOT'"/boot/vmlinux-$KERNELRELEASE.bz2"
+echo 'mv vmlinux.orig vmlinux'
+echo "%endif"
+
 echo ""
 echo "%clean"
 echo '#echo -rf $RPM_BUILD_ROOT'
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index f6946cf99ce1..f1c4b35bc324 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -58,14 +58,7 @@ fi
 # Check for svn and a svn repo.
 if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
         rev=`echo $rev | awk '{print $NF}'`
-        changes=`svn status 2>/dev/null | grep '^[AMD]' | wc -l`
-
-        # Are there uncommitted changes?
-        if [ $changes != 0 ]; then
-                printf -- '-svn%s%s' "$rev" -dirty
-        else
-                printf -- '-svn%s' "$rev"
-        fi
+        printf -- '-svn%s' "$rev"
 
         # All done with svn
         exit
diff --git a/scripts/tags.sh b/scripts/tags.sh
index fdbe78bb5e2b..5bd8b1003d44 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -76,7 +76,10 @@ all_sources()
 
 all_kconfigs()
 {
-        find_sources $ALLSOURCE_ARCHS 'Kconfig*'
+        for arch in $ALLSOURCE_ARCHS; do
+                find_sources $arch 'Kconfig*'
+        done
+        find_other_sources 'Kconfig*'
 }
 
 all_defconfigs()
@@ -99,7 +102,8 @@ exuberant()
         -I ____cacheline_internodealigned_in_smp                \
         -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL                      \
         --extra=+f --c-kinds=+px                                \
-        --regex-asm='/^ENTRY\(([^)]*)\).*/\1/'
+        --regex-asm='/^ENTRY\(([^)]*)\).*/\1/'                  \
+        --regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/'
 
         all_kconfigs | xargs $1 -a                              \
         --langdef=kconfig --language-force=kconfig              \
@@ -117,7 +121,9 @@ exuberant()
 
 emacs()
 {
-        all_sources | xargs $1 -a
+        all_sources | xargs $1 -a                               \
+        --regex='/^ENTRY(\([^)]*\)).*/\1/'                      \
+        --regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'
 
         all_kconfigs | xargs $1 -a                              \
         --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index e9693a29d00e..4c4037503600 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -73,14 +73,13 @@ static int kvm_iommu_map_memslots(struct kvm *kvm)
 {
         int i, r = 0;
 
-        down_read(&kvm->slots_lock);
         for (i = 0; i < kvm->nmemslots; i++) {
                 r = kvm_iommu_map_pages(kvm, kvm->memslots[i].base_gfn,
                                         kvm->memslots[i].npages);
                 if (r)
                         break;
         }
-        up_read(&kvm->slots_lock);
+
         return r;
 }
 
@@ -190,12 +189,11 @@ static void kvm_iommu_put_pages(struct kvm *kvm,
 static int kvm_iommu_unmap_memslots(struct kvm *kvm)
 {
         int i;
-        down_read(&kvm->slots_lock);
+
         for (i = 0; i < kvm->nmemslots; i++) {
                 kvm_iommu_put_pages(kvm, kvm->memslots[i].base_gfn,
                                     kvm->memslots[i].npages);
         }
-        up_read(&kvm->slots_lock);
 
         return 0;
 }
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 3a5a08298aab..29a667ce35b0 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -173,7 +173,6 @@ static void kvm_assigned_dev_interrupt_work_handler(struct work_struct *work)
                 assigned_dev->host_irq_disabled = false;
         }
         mutex_unlock(&assigned_dev->kvm->lock);
-        kvm_put_kvm(assigned_dev->kvm);
 }
 
 static irqreturn_t kvm_assigned_dev_intr(int irq, void *dev_id)
@@ -181,8 +180,6 @@ static irqreturn_t kvm_assigned_dev_intr(int irq, void *dev_id)
         struct kvm_assigned_dev_kernel *assigned_dev =
                 (struct kvm_assigned_dev_kernel *) dev_id;
 
-        kvm_get_kvm(assigned_dev->kvm);
-
         schedule_work(&assigned_dev->interrupt_work);
 
         disable_irq_nosync(irq);
@@ -213,6 +210,7 @@ static void kvm_assigned_dev_ack_irq(struct kvm_irq_ack_notifier *kian)
         }
 }
 
+/* The function implicit hold kvm->lock mutex due to cancel_work_sync() */
 static void kvm_free_assigned_irq(struct kvm *kvm,
                                   struct kvm_assigned_dev_kernel *assigned_dev)
 {
@@ -228,11 +226,24 @@ static void kvm_free_assigned_irq(struct kvm *kvm,
         if (!assigned_dev->irq_requested_type)
                 return;
 
-        if (cancel_work_sync(&assigned_dev->interrupt_work))
-                /* We had pending work. That means we will have to take
-                 * care of kvm_put_kvm.
-                 */
-                kvm_put_kvm(kvm);
+        /*
+         * In kvm_free_device_irq, cancel_work_sync return true if:
+         * 1. work is scheduled, and then cancelled.
+         * 2. work callback is executed.
+         *
+         * The first one ensured that the irq is disabled and no more events
+         * would happen. But for the second one, the irq may be enabled (e.g.
+         * for MSI). So we disable irq here to prevent further events.
+         *
+         * Notice this maybe result in nested disable if the interrupt type is
+         * INTx, but it's OK for we are going to free it.
+         *
+         * If this function is a part of VM destroy, please ensure that till
+         * now, the kvm state is still legal for probably we also have to wait
+         * interrupt_work done.
+         */
+        disable_irq_nosync(assigned_dev->host_irq);
+        cancel_work_sync(&assigned_dev->interrupt_work);
 
         free_irq(assigned_dev->host_irq, (void *)assigned_dev);
 
@@ -285,8 +296,8 @@ static int assigned_device_update_intx(struct kvm *kvm,
 
         if (irqchip_in_kernel(kvm)) {
                 if (!msi2intx &&
-                    adev->irq_requested_type & KVM_ASSIGNED_DEV_HOST_MSI) {
-                        free_irq(adev->host_irq, (void *)kvm);
+                    (adev->irq_requested_type & KVM_ASSIGNED_DEV_HOST_MSI)) {
+                        free_irq(adev->host_irq, (void *)adev);
                         pci_disable_msi(adev->dev);
                 }
 
@@ -455,6 +466,7 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm,
         struct kvm_assigned_dev_kernel *match;
         struct pci_dev *dev;
 
+        down_read(&kvm->slots_lock);
         mutex_lock(&kvm->lock);
 
         match = kvm_find_assigned_dev(&kvm->arch.assigned_dev_head,
@@ -516,6 +528,7 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm,
 
 out:
         mutex_unlock(&kvm->lock);
+        up_read(&kvm->slots_lock);
         return r;
 out_list_del:
         list_del(&match->list);
@@ -527,6 +540,7 @@ out_put:
 out_free:
         kfree(match);
         mutex_unlock(&kvm->lock);
+        up_read(&kvm->slots_lock);
         return r;
 }
 #endif
@@ -789,11 +803,19 @@ static int kvm_mmu_notifier_clear_flush_young(struct mmu_notifier *mn,
         return young;
 }
 
+static void kvm_mmu_notifier_release(struct mmu_notifier *mn,
+                                     struct mm_struct *mm)
+{
+        struct kvm *kvm = mmu_notifier_to_kvm(mn);
+        kvm_arch_flush_shadow(kvm);
+}
+
 static const struct mmu_notifier_ops kvm_mmu_notifier_ops = {
         .invalidate_page        = kvm_mmu_notifier_invalidate_page,
         .invalidate_range_start = kvm_mmu_notifier_invalidate_range_start,
         .invalidate_range_end   = kvm_mmu_notifier_invalidate_range_end,
         .clear_flush_young      = kvm_mmu_notifier_clear_flush_young,
+        .release                = kvm_mmu_notifier_release,
 };
 #endif /* CONFIG_MMU_NOTIFIER && KVM_ARCH_WANT_MMU_NOTIFIER */
 
@@ -883,6 +905,7 @@ static void kvm_destroy_vm(struct kvm *kvm)
 {
         struct mm_struct *mm = kvm->mm;
 
+        kvm_arch_sync_events(kvm);
         spin_lock(&kvm_lock);
         list_del(&kvm->vm_list);
         spin_unlock(&kvm_lock);