161 files changed, 2482 insertions, 1239 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
index ceddcff4082a..e638e15a8895 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci
+++ b/Documentation/ABI/testing/sysfs-bus-pci
@@ -1,3 +1,46 @@
+What:           /sys/bus/pci/drivers/.../bind
+Date:           December 2003
+Contact:        linux-pci@vger.kernel.org
+Description:
+                Writing a device location to this file will cause
+                the driver to attempt to bind to the device found at
+                this location.  This is useful for overriding default
+                bindings.  The format for the location is: DDDD:BB:DD.F.
+                That is Domain:Bus:Device.Function and is the same as
+                found in /sys/bus/pci/devices/.  For example:
+                # echo 0000:00:19.0 > /sys/bus/pci/drivers/foo/bind
+                (Note: kernels before 2.6.28 may require echo -n).
+What:           /sys/bus/pci/drivers/.../unbind
+Date:           December 2003
+Contact:        linux-pci@vger.kernel.org
+Description:
+                Writing a device location to this file will cause the
+                driver to attempt to unbind from the device found at
+                this location.  This may be useful when overriding default
+                bindings.  The format for the location is: DDDD:BB:DD.F.
+                That is Domain:Bus:Device.Function and is the same as
+                found in /sys/bus/pci/devices/. For example:
+                # echo 0000:00:19.0 > /sys/bus/pci/drivers/foo/unbind
+                (Note: kernels before 2.6.28 may require echo -n).
+What:           /sys/bus/pci/drivers/.../new_id
+Date:           December 2003
+Contact:        linux-pci@vger.kernel.org
+Description:
+                Writing a device ID to this file will attempt to
+                dynamically add a new device ID to a PCI device driver.
+                This may allow the driver to support more hardware than
+                was included in the driver's static device ID support
+                table at compile time.  The format for the device ID is:
+                VVVV DDDD SVVV SDDD CCCC MMMM PPPP.  That is Vendor ID,
+                Device ID, Subsystem Vendor ID, Subsystem Device ID,
+                Class, Class Mask, and Private Driver Data.  The Vendor ID
+                and Device ID fields are required, the rest are optional.
+                Upon successfully adding an ID, the driver will probe
+                for the device and attempt to bind to it.  For example:
+                # echo "8086 10f5" > /sys/bus/pci/drivers/foo/new_id
 What:           /sys/bus/pci/devices/.../vpd
 Date:           February 2008
 Contact:        Ben Hutchings <bhutchings@solarflare.com>
diff --git a/Documentation/dvb/README.flexcop b/Documentation/dvb/README.flexcop
deleted file mode 100644
index 5515469de7cf..000000000000
--- a/Documentation/dvb/README.flexcop
+++ /dev/null
@@ -1,205 +0,0 @@
-This README escorted the skystar2-driver rewriting procedure. It describes the
-state of the new flexcop-driver set and some internals are written down here
-too.
-This document hopefully describes things about the flexcop and its
-device-offsprings. Goal was to write an easy-to-write and easy-to-read set of
-drivers based on the skystar2.c and other information.
-Remark: flexcop-pci.c was a copy of skystar2.c, but every line has been
-touched and rewritten.
-History & News
-==============
-  2005-04-01 - correct USB ISOC transfers (thanks to Vadim Catana)
-General coding processing
-=========================
-We should proceed as follows (as long as no one complains):
-0) Think before start writing code!
-1) rewriting the skystar2.c with the help of the flexcop register descriptions
-and splitting up the files to a pci-bus-part and a flexcop-part.
-The new driver will be called b2c2-flexcop-pci.ko/b2c2-flexcop-usb.ko for the
-device-specific part and b2c2-flexcop.ko for the common flexcop-functions.
-2) Search for errors in the leftover of flexcop-pci.c (compare with pluto2.c
-and other pci drivers)
-3) make some beautification (see 'Improvements when rewriting (refactoring) is
-done')
-4) Testing the new driver and maybe substitute the skystar2.c with it, to reach
-a wider tester audience.
-5) creating an usb-bus-part using the already written flexcop code for the pci
-card.
-Idea: create a kernel-object for the flexcop and export all important
-functions. This option saves kernel-memory, but maybe a lot of functions have
-to be exported to kernel namespace.
-Current situation
-=================
-0) Done :)
-1) Done (some minor issues left)
-2) Done
-3) Not ready yet, more information is necessary
-4) next to be done (see the table below)
-5) USB driver is working (yes, there are some minor issues)
-What seems to be ready?
-----------------------
-1) Rewriting
-1a) i2c is cut off from the flexcop-pci.c and seems to work
-1b) moved tuner and demod stuff from flexcop-pci.c to flexcop-tuner-fe.c
-1c) moved lnb and diseqc stuff from flexcop-pci.c to flexcop-tuner-fe.c
-1e) eeprom (reading MAC address)
-1d) sram (no dynamic sll size detection (commented out) (using default as JJ told me))
-1f) misc. register accesses for reading parameters (e.g. resetting, revision)
-1g) pid/mac filter (flexcop-hw-filter.c)
-1i) dvb-stuff initialization in flexcop.c (done)
-1h) dma stuff (now just using the size-irq, instead of all-together, to be done)
-1j) remove flexcop initialization from flexcop-pci.c completely (done)
-1l) use a well working dma IRQ method (done, see 'Known bugs and problems and TODO')
-1k) cleanup flexcop-files (remove unused EXPORT_SYMBOLs, make static from
-non-static where possible, moved code to proper places)
-2) Search for errors in the leftover of flexcop-pci.c (partially done)
-5a) add MAC address reading
-5c) feeding of ISOC data to the software demux (format of the isochronous data
-and speed optimization, no real error) (thanks to Vadim Catana)
-What to do in the near future?
--------------------------------------
-(no special order here)
-5) USB driver
-5b) optimize isoc-transfer (submitting/killing isoc URBs when transfer is starting)
-Testing changes
---------------
-O             = item is working
-P             = item is partially working
-X             = item is not working
-N             = item does not apply here
-<empty field> = item need to be examined
-       | PCI                               | USB
-item   | mt352 | nxt2002 | stv0299 | mt312 | mt352 | nxt2002 | stv0299 | mt312
-------+-------+---------+---------+-------+-------+---------+---------+-------
-1a)    | O     |         |         |       | N     | N       | N       | N
-1b)    | O     |         |         |       |       |         | O       |
-1c)    | N     | N       |         |       | N     | N       | O       |
-1d)    |                 O                 |                 O
-1e)    |                 O                 |                 O
-1f)    |                                   P
-1g)    |                                   O
-1h)    |                 P                 |
-1i)    |                 O                 |                 N
-1j)    |                 O                 |                 N
-1l)    |                 O                 |                 N
-2)     |                 O                 |                 N
-5a)    |                 N                 |                 O
-5b)*   |                 N                 |
-5c)    |                 N                 |                 O
-* - not done yet
-Known bugs and problems and TODO
--------------------------------
-1g/h/l) when pid filtering is enabled on the pci card
-DMA usage currently:
-  The DMA is splitted in 2 equal-sized subbuffers. The Flexcop writes to first
-  address and triggers an IRQ when it's full and starts writing to the second
-  address. When the second address is full, the IRQ is triggered again, and
-  the flexcop writes to first address again, and so on.
-  The buffersize of each address is currently 640*188 bytes.
-  Problem is, when using hw-pid-filtering and doing some low-bandwidth
-  operation (like scanning) the buffers won't be filled enough to trigger
-  the IRQ. That's why:
-  When PID filtering is activated, the timer IRQ is used. Every 1.97 ms the IRQ
-  is triggered.  Is the current write address of DMA1 different to the one
-  during the last IRQ, then the data is passed to the demuxer.
-  There is an additional DMA-IRQ-method: packet count IRQ. This isn't
-  implemented correctly yet.
-  The solution is to disable HW PID filtering, but I don't know how the DVB
-  API software demux behaves on slow systems with 45MBit/s TS.
-Solved bugs :)
--------------
-1g) pid-filtering (somehow pid index 4 and 5 (EMM_PID and ECM_PID) aren't
-working)
-SOLUTION: also index 0 was affected, because net_translation is done for
-these indexes by default
-5b) isochronous transfer does only work in the first attempt (for the Sky2PC
-USB, Air2PC is working) SOLUTION: the flexcop was going asleep and never really
-woke up again (don't know if this need fixes, see
-flexcop-fe-tuner.c:flexcop_sleep)
-NEWS: when the driver is loaded and unloaded and loaded again (w/o doing
-anything in the while the driver is loaded the first time), no transfers take
-place anymore.
-Improvements when rewriting (refactoring) is done
-=================================================
- split sleeping of the flexcop (misc_204.ACPI3_sig = 1;) from lnb_control
-  (enable sleeping for other demods than dvb-s)
- add support for CableStar (stv0297 Microtune 203x/ALPS) (almost done, incompatibilities with the Nexus-CA)
-Debugging
---------
- add verbose debugging to skystar2.c (dump the reg_dw_data) and compare it
-  with this flexcop, this is important, because i2c is now using the
-  flexcop_ibi_value union from flexcop-reg.h (do you have a better idea for
-  that, please tell us so).
-Everything which is identical in the following table, can be put into a common
-flexcop-module.
-                  PCI                  USB
-------------------------------------------------------------------------------
-Different:
-Register access:  accessing IO memory  USB control message
-I2C bus:          I2C bus of the FC    USB control message
-Data transfer:    DMA                  isochronous transfer
-EEPROM transfer:  through i2c bus      not clear yet
-Identical:
-Streaming:                 accessing registers
-PID Filtering:             accessing registers
-Sram destinations:         accessing registers
-Tuner/Demod:                     I2C bus
-DVB-stuff:            can be written for common use
-Acknowledgements (just for the rewriting part)
-================
-Bjarne Steinsbo thought a lot in the first place of the pci part for this code
-sharing idea.
-Andreas Oberritter for providing a recent PCI initialization template
-(pluto2.c).
-Boleslaw Ciesielski for pointing out a problem with firmware loader.
-Vadim Catana for correcting the USB transfer.
-comments, critics and ideas to linux-dvb@linuxtv.org.
diff --git a/Documentation/dvb/technisat.txt b/Documentation/dvb/technisat.txt
index cdf6ee4b2da1..3f435ffb289c 100644
--- a/Documentation/dvb/technisat.txt
+++ b/Documentation/dvb/technisat.txt
@@ -1,5 +1,5 @@
-How to set up the Technisat devices
+How to set up the Technisat/B2C2 Flexcop devices
-===================================
+================================================
 1) Find out what device you have
 ================================
@@ -16,54 +16,60 @@ DVB: registering frontend 0 (Conexant CX24123/CX24109)...
 If the Technisat is the only TV device in your box get rid of unnecessary modules and check this one:
 "Multimedia devices" => "Customise analog and hybrid tuner modules to build"
-In this directory uncheck every driver which is activated there.
+In this directory uncheck every driver which is activated there (except "Simple tuner support" for case 9 only).
 Then please activate:
 2a) Main module part:
 a.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters"
-b.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC PCI" in case of a PCI card OR
+b.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC PCI" in case of a PCI card
+OR
 c.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC USB" in case of an USB 1.1 adapter
 d.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Enable debug for the B2C2 FlexCop drivers"
 Notice: d.) is helpful for troubleshooting
 2b) Frontend module part:
-1.) Revision 2.3:
+1.) SkyStar DVB-S Revision 2.3:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "Zarlink VP310/MT312/ZL10313 based"
-2.) Revision 2.6:
+2.) SkyStar DVB-S Revision 2.6:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "ST STV0299 based"
-3.) Revision 2.7:
+3.) SkyStar DVB-S Revision 2.7:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "Samsung S5H1420 based"
 c.)"Multimedia devices" => "Customise DVB frontends" => "Integrant ITD1000 Zero IF tuner for DVB-S/DSS"
 d.)"Multimedia devices" => "Customise DVB frontends" => "ISL6421 SEC controller"
-4.) Revision 2.8:
+4.) SkyStar DVB-S Revision 2.8:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "Conexant CX24113/CX24128 tuner for DVB-S/DSS"
 c.)"Multimedia devices" => "Customise DVB frontends" => "Conexant CX24123 based"
 d.)"Multimedia devices" => "Customise DVB frontends" => "ISL6421 SEC controller"
-5.) DVB-T card:
+5.) AirStar DVB-T card:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "Zarlink MT352 based"
-6.) DVB-C card:
+6.) CableStar DVB-C card:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "ST STV0297 based"
-7.) ATSC card 1st generation:
+7.) AirStar ATSC card 1st generation:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "Broadcom BCM3510"
-8.) ATSC card 2nd generation:
+8.) AirStar ATSC card 2nd generation:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "NxtWave Communications NXT2002/NXT2004 based"
-c.)"Multimedia devices" => "Customise DVB frontends" => "LG Electronics LGDT3302/LGDT3303 based"
+c.)"Multimedia devices" => "Customise DVB frontends" => "Generic I2C PLL based tuners"
-Author: Uwe Bugla <uwe.bugla@gmx.de> December 2008
+9.) AirStar ATSC card 3rd generation:
+a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
+b.)"Multimedia devices" => "Customise DVB frontends" => "LG Electronics LGDT3302/LGDT3303 based"
+c.)"Multimedia devices" => "Customise analog and hybrid tuner modules to build" => "Simple tuner support"
+Author: Uwe Bugla <uwe.bugla@gmx.de> February 2009
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 319785b6dcb1..54f21a5c262b 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -114,7 +114,7 @@ In addition, the following text indicates that the option:
 Parameters denoted with BOOT are actually interpreted by the boot
 loader, and have no meaning to the kernel directly.
 Do not modify the syntax of boot loader parameters without extreme
-need or coordination with <Documentation/x86/i386/boot.txt>.
+need or coordination with <Documentation/x86/boot.txt>.
 There are also arch-specific kernel-parameters not documented here.
 See for example <Documentation/x86/x86_64/boot-options.txt>.
@@ -868,8 +868,10 @@ and is between 256 and 4096 characters. It is defined in the file
        icn=            [HW,ISDN]
                        Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
-        ide=            [HW] (E)IDE subsystem
+        ide-core.nodma= [HW] (E)IDE subsystem
-                        Format: ide=nodma or ide=doubler
+                        Format: =0.0 to prevent dma on hda, =0.1 hdb =1.0 hdc
+                        .vlb_clock .pci_clock .noflush .noprobe .nowerr .cdrom
+                        .chs .ignore_cable are additional options
                        See Documentation/ide/ide.txt.
        idebus=         [HW] (E)IDE subsystem - VLB/PCI bus speed
@@ -2449,7 +2451,7 @@ and is between 256 and 4096 characters. It is defined in the file
                        See Documentation/fb/modedb.txt.
        vga=            [BOOT,X86-32] Select a particular video mode
-                        See Documentation/x86/i386/boot.txt and
+                        See Documentation/x86/boot.txt and
                        Documentation/svga.txt.
                        Use vga=ask for menu.
                        This is actually a boot loader parameter; the value is
diff --git a/arch/arm/mach-davinci/board-evm.c b/arch/arm/mach-davinci/board-evm.c
index a957d239a683..38b6a9ce2a93 100644
--- a/arch/arm/mach-davinci/board-evm.c
+++ b/arch/arm/mach-davinci/board-evm.c
@@ -311,6 +311,9 @@ evm_u35_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
        gpio_request(gpio + 7, "nCF_SEL");
        gpio_direction_output(gpio + 7, 1);
+        /* irlml6401 sustains over 3A, switches 5V in under 8 msec */
+        setup_usb(500, 8);
        return 0;
 }
@@ -417,9 +420,6 @@ static __init void davinci_evm_init(void)
        platform_add_devices(davinci_evm_devices,
                             ARRAY_SIZE(davinci_evm_devices));
        evm_init_i2c();
-        /* irlml6401 sustains over 3A, switches 5V in under 8 msec */
-        setup_usb(500, 8);
 }
 static __init void davinci_evm_irq_init(void)
diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index 28f6dbc95bd7..abb92b7eca0c 100644
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -231,6 +231,11 @@ static struct clk davinci_clks[] = {
                .lpsc = DAVINCI_LPSC_GPIO,
        },
        {
+                .name = "usb",
+                .rate = &commonrate,
+                .lpsc = DAVINCI_LPSC_USB,
+        },
+        {
                .name = "AEMIFCLK",
                .rate = &commonrate,
                .lpsc = DAVINCI_LPSC_AEMIF,
diff --git a/arch/arm/mach-davinci/usb.c b/arch/arm/mach-davinci/usb.c
index 867ead2559ad..69680784448a 100644
--- a/arch/arm/mach-davinci/usb.c
+++ b/arch/arm/mach-davinci/usb.c
@@ -47,6 +47,7 @@ static struct musb_hdrc_platform_data usb_data = {
 #elif defined(CONFIG_USB_MUSB_HOST)
        .mode           = MUSB_HOST,
 #endif
+        .clock          = "usb",
        .config         = &musb_config,
 };
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 4eb45c012498..153e727a6e8e 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -638,6 +638,17 @@ config DMAR
          and include PCI device scope covered by these DMA
          remapping devices.
+config DMAR_DEFAULT_ON
+        def_bool y
+        prompt "Enable DMA Remapping Devices by default"
+        depends on DMAR
+        help
+          Selecting this option will enable a DMAR device at boot time if
+          one is found. If this option is not selected, DMAR support can
+          be enabled by passing intel_iommu=on to the kernel. It is
+          recommended you say N here while the DMAR code remains
+          experimental.
 endmenu
 endif
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 5cfd3d91001a..e13125058bed 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -507,7 +507,7 @@ static int iosapic_find_sharable_irq(unsigned long trigger, unsigned long pol)
        if (trigger == IOSAPIC_EDGE)
                return -EINVAL;
-        for (i = 0; i <= NR_IRQS; i++) {
+        for (i = 0; i < NR_IRQS; i++) {
                info = &iosapic_intr_info[i];
                if (info->trigger == trigger && info->polarity == pol &&
                    (info->dmode == IOSAPIC_FIXED ||
diff --git a/arch/ia64/kernel/unwind.c b/arch/ia64/kernel/unwind.c
index 67810b77d998..b6c0e63a0bf6 100644
--- a/arch/ia64/kernel/unwind.c
+++ b/arch/ia64/kernel/unwind.c
@@ -2149,7 +2149,7 @@ unw_remove_unwind_table (void *handle)
        /* next, remove hash table entries for this table */
-        for (index = 0; index <= UNW_HASH_SIZE; ++index) {
+        for (index = 0; index < UNW_HASH_SIZE; ++index) {
                tmp = unw.cache + unw.hash[index];
                if (unw.hash[index] >= UNW_CACHE_SIZE
                    || tmp->ip < table->start || tmp->ip >= table->end)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 600eef3f3ac7..e61465a18c7e 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -603,7 +603,7 @@ config CAVIUM_OCTEON_SIMULATOR
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_HIGHMEM
-        select CPU_CAVIUM_OCTEON
+        select SYS_HAS_CPU_CAVIUM_OCTEON
        help
          The Octeon simulator is software performance model of the Cavium
          Octeon Processor. It supports simulating Octeon processors on x86
@@ -618,7 +618,7 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_HIGHMEM
        select SYS_HAS_EARLY_PRINTK
-        select CPU_CAVIUM_OCTEON
+        select SYS_HAS_CPU_CAVIUM_OCTEON
        select SWAP_IO_SPACE
        help
          This option supports all of the Octeon reference boards from Cavium
@@ -1234,6 +1234,7 @@ config CPU_SB1
 config CPU_CAVIUM_OCTEON
        bool "Cavium Octeon processor"
+        depends on SYS_HAS_CPU_CAVIUM_OCTEON
        select IRQ_CPU
        select IRQ_CPU_OCTEON
        select CPU_HAS_PREFETCH
@@ -1314,6 +1315,9 @@ config SYS_HAS_CPU_RM9000
 config SYS_HAS_CPU_SB1
        bool
+config SYS_HAS_CPU_CAVIUM_OCTEON
+        bool
 #
 # CPU may reorder R->R, R->W, W->R, W->W
 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
@@ -1387,6 +1391,7 @@ config 32BIT
 config 64BIT
        bool "64-bit kernel"
        depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
+        select HAVE_SYSCALL_WRAPPERS
        help
          Select this option if you want to build a 64-bit kernel.
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 6fd441d16af5..f58d4ffb8945 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -118,7 +118,7 @@ void __init plat_time_init(void)
         * setup counter 1 (RTC) to tick at full speed
         */
        t = 0xffffff;
-        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T1S) && t--)
+        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T1S) && --t)
                asm volatile ("nop");
        if (!t)
                goto cntr_err;
@@ -127,7 +127,7 @@ void __init plat_time_init(void)
        au_sync();
        t = 0xffffff;
-        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && t--)
+        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && --t)
                asm volatile ("nop");
        if (!t)
                goto cntr_err;
@@ -135,7 +135,7 @@ void __init plat_time_init(void)
        au_sync();
        t = 0xffffff;
-        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && t--)
+        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && --t)
                asm volatile ("nop");
        if (!t)
                goto cntr_err;
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index a0ff2b66e22b..4b4007b3083a 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -111,7 +111,6 @@ int show_interrupts(struct seq_file *p, void *v)
                        seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
 #endif
                seq_printf(p, " %14s", irq_desc[i].chip->name);
-                seq_printf(p, "-%-8s", irq_desc[i].name);
                seq_printf(p, "  %s", action->name);
                for (action=action->next; action; action = action->next)
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index aa2c55e3b55f..2f8452b404c7 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -32,6 +32,7 @@
 #include <linux/module.h>
 #include <linux/binfmts.h>
 #include <linux/security.h>
+#include <linux/syscalls.h>
 #include <linux/compat.h>
 #include <linux/vfs.h>
 #include <linux/ipc.h>
@@ -63,9 +64,9 @@
 #define merge_64(r1, r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL))
 #endif
-asmlinkage unsigned long
+SYSCALL_DEFINE6(32_mmap2, unsigned long, addr, unsigned long, len,
-sys32_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
+        unsigned long, prot, unsigned long, flags, unsigned long, fd,
-         unsigned long flags, unsigned long fd, unsigned long pgoff)
+        unsigned long, pgoff)
 {
        struct file * file = NULL;
        unsigned long error;
@@ -121,21 +122,21 @@ struct rlimit32 {
        int     rlim_max;
 };
-asmlinkage long sys32_truncate64(const char __user * path,
+SYSCALL_DEFINE4(32_truncate64, const char __user *, path,
-        unsigned long __dummy, int a2, int a3)
+        unsigned long, __dummy, unsigned long, a2, unsigned long, a3)
 {
        return sys_truncate(path, merge_64(a2, a3));
 }
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
+SYSCALL_DEFINE4(32_ftruncate64, unsigned long, fd, unsigned long, __dummy,
-        int a2, int a3)
+        unsigned long, a2, unsigned long, a3)
 {
        return sys_ftruncate(fd, merge_64(a2, a3));
 }
-asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
+SYSCALL_DEFINE5(32_llseek, unsigned long, fd, unsigned long, offset_high,
-                            unsigned int offset_low, loff_t __user * result,
+        unsigned long, offset_low, loff_t __user *, result,
-                            unsigned int origin)
+        unsigned long, origin)
 {
        return sys_llseek(fd, offset_high, offset_low, result, origin);
 }
@@ -144,20 +145,20 @@ asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
   lseek back to original location.  They fail just like lseek does on
   non-seekable files.  */
-asmlinkage ssize_t sys32_pread(unsigned int fd, char __user * buf,
+SYSCALL_DEFINE6(32_pread, unsigned long, fd, char __user *, buf, size_t, count,
-                               size_t count, u32 unused, u64 a4, u64 a5)
+        unsigned long, unused, unsigned long, a4, unsigned long, a5)
 {
        return sys_pread64(fd, buf, count, merge_64(a4, a5));
 }
-asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char __user * buf,
+SYSCALL_DEFINE6(32_pwrite, unsigned int, fd, const char __user *, buf,
-                                size_t count, u32 unused, u64 a4, u64 a5)
+        size_t, count, u32, unused, u64, a4, u64, a5)
 {
        return sys_pwrite64(fd, buf, count, merge_64(a4, a5));
 }
-asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
+SYSCALL_DEFINE2(32_sched_rr_get_interval, compat_pid_t, pid,
-        struct compat_timespec __user *interval)
+        struct compat_timespec __user *, interval)
 {
        struct timespec t;
        int ret;
@@ -174,8 +175,8 @@ asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
 #ifdef CONFIG_SYSVIPC
-asmlinkage long
+SYSCALL_DEFINE6(32_ipc, u32, call, long, first, long, second, long, third,
-sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
+        unsigned long, ptr, unsigned long, fifth)
 {
        int version, err;
@@ -233,8 +234,8 @@ sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
 #else
-asmlinkage long
+SYSCALL_DEFINE6(32_ipc, u32, call, int, first, int, second, int, third,
-sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
+        u32, ptr, u32 fifth)
 {
        return -ENOSYS;
 }
@@ -242,7 +243,7 @@ sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
 #endif /* CONFIG_SYSVIPC */
 #ifdef CONFIG_MIPS32_N32
-asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, u32 arg)
+SYSCALL_DEFINE4(n32_semctl, int, semid, int, semnum, int, cmd, u32, arg)
 {
        /* compat_sys_semctl expects a pointer to union semun */
        u32 __user *uptr = compat_alloc_user_space(sizeof(u32));
@@ -251,13 +252,14 @@ asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, u32 arg)
        return compat_sys_semctl(semid, semnum, cmd, uptr);
 }
-asmlinkage long sysn32_msgsnd(int msqid, u32 msgp, unsigned msgsz, int msgflg)
+SYSCALL_DEFINE4(n32_msgsnd, int, msqid, u32, msgp, unsigned int, msgsz,
+        int, msgflg)
 {
        return compat_sys_msgsnd(msqid, msgsz, msgflg, compat_ptr(msgp));
 }
-asmlinkage long sysn32_msgrcv(int msqid, u32 msgp, size_t msgsz, int msgtyp,
+SYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz,
-                              int msgflg)
+        int, msgtyp, int, msgflg)
 {
        return compat_sys_msgrcv(msqid, msgsz, msgtyp, msgflg, IPC_64,
                                 compat_ptr(msgp));
@@ -277,7 +279,7 @@ struct sysctl_args32
 #ifdef CONFIG_SYSCTL_SYSCALL
-asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args)
+SYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args)
 {
        struct sysctl_args32 tmp;
        int error;
@@ -316,9 +318,16 @@ asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args)
        return error;
 }
+#else
+SYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args)
+{
+        return -ENOSYS;
+}
 #endif /* CONFIG_SYSCTL_SYSCALL */
-asmlinkage long sys32_newuname(struct new_utsname __user * name)
+SYSCALL_DEFINE1(32_newuname, struct new_utsname __user *, name)
 {
        int ret = 0;
@@ -334,7 +343,7 @@ asmlinkage long sys32_newuname(struct new_utsname __user * name)
        return ret;
 }
-asmlinkage int sys32_personality(unsigned long personality)
+SYSCALL_DEFINE1(32_personality, unsigned long, personality)
 {
        int ret;
        personality &= 0xffffffff;
@@ -357,7 +366,7 @@ struct ustat32 {
 extern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf);
-asmlinkage int sys32_ustat(dev_t dev, struct ustat32 __user * ubuf32)
+SYSCALL_DEFINE2(32_ustat, dev_t, dev, struct ustat32 __user *, ubuf32)
 {
        int err;
        struct ustat tmp;
@@ -381,8 +390,8 @@ out:
        return err;
 }
-asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
+SYSCALL_DEFINE4(32_sendfile, long, out_fd, long, in_fd,
-        s32 count)
+        compat_off_t __user *, offset, s32, count)
 {
        mm_segment_t old_fs = get_fs();
        int ret;
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 51d1ba415b90..9ab70c3b5be6 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -399,7 +399,7 @@ einval:	li	v0, -ENOSYS
        sys     sys_swapon              2
        sys     sys_reboot              3
        sys     sys_old_readdir         3
-        sys     old_mmap                6       /* 4090 */
+        sys     sys_mips_mmap           6       /* 4090 */
        sys     sys_munmap              2
        sys     sys_truncate            2
        sys     sys_ftruncate           2
@@ -519,7 +519,7 @@ einval:	li	v0, -ENOSYS
        sys     sys_sendfile            4
        sys     sys_ni_syscall          0
        sys     sys_ni_syscall          0
-        sys     sys_mmap2               6       /* 4210 */
+        sys     sys_mips_mmap2          6       /* 4210 */
        sys     sys_truncate64          4
        sys     sys_ftruncate64         4
        sys     sys_stat64              2
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index a9e171618994..9b4698667154 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -207,7 +207,7 @@ sys_call_table:
        PTR     sys_newlstat
        PTR     sys_poll
        PTR     sys_lseek
-        PTR     old_mmap
+        PTR     sys_mips_mmap
        PTR     sys_mprotect                    /* 5010 */
        PTR     sys_munmap
        PTR     sys_brk
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 30f3b6317a83..7438e92f8a01 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -129,12 +129,12 @@ EXPORT(sysn32_call_table)
        PTR     sys_newlstat
        PTR     sys_poll
        PTR     sys_lseek
-        PTR     old_mmap
+        PTR     sys_mips_mmap
        PTR     sys_mprotect                    /* 6010 */
        PTR     sys_munmap
        PTR     sys_brk
-        PTR     sys32_rt_sigaction
+        PTR     sys_32_rt_sigaction
-        PTR     sys32_rt_sigprocmask
+        PTR     sys_32_rt_sigprocmask
        PTR     compat_sys_ioctl                /* 6015 */
        PTR     sys_pread64
        PTR     sys_pwrite64
@@ -159,7 +159,7 @@ EXPORT(sysn32_call_table)
        PTR     compat_sys_setitimer
        PTR     sys_alarm
        PTR     sys_getpid
-        PTR     sys32_sendfile
+        PTR     sys_32_sendfile
        PTR     sys_socket                      /* 6040 */
        PTR     sys_connect
        PTR     sys_accept
@@ -181,14 +181,14 @@ EXPORT(sysn32_call_table)
        PTR     sys_exit
        PTR     compat_sys_wait4
        PTR     sys_kill                        /* 6060 */
-        PTR     sys32_newuname
+        PTR     sys_32_newuname
        PTR     sys_semget
        PTR     sys_semop
-        PTR     sysn32_semctl
+        PTR     sys_n32_semctl
        PTR     sys_shmdt                       /* 6065 */
        PTR     sys_msgget
-        PTR     sysn32_msgsnd
+        PTR     sys_n32_msgsnd
-        PTR     sysn32_msgrcv
+        PTR     sys_n32_msgrcv
        PTR     compat_sys_msgctl
        PTR     compat_sys_fcntl                /* 6070 */
        PTR     sys_flock
@@ -245,15 +245,15 @@ EXPORT(sysn32_call_table)
        PTR     sys_getsid
        PTR     sys_capget
        PTR     sys_capset
-        PTR     sys32_rt_sigpending             /* 6125 */
+        PTR     sys_32_rt_sigpending            /* 6125 */
        PTR     compat_sys_rt_sigtimedwait
-        PTR     sys32_rt_sigqueueinfo
+        PTR     sys_32_rt_sigqueueinfo
        PTR     sysn32_rt_sigsuspend
        PTR     sys32_sigaltstack
        PTR     compat_sys_utime                /* 6130 */
        PTR     sys_mknod
-        PTR     sys32_personality
+        PTR     sys_32_personality
-        PTR     sys32_ustat
+        PTR     sys_32_ustat
        PTR     compat_sys_statfs
        PTR     compat_sys_fstatfs              /* 6135 */
        PTR     sys_sysfs
@@ -265,14 +265,14 @@ EXPORT(sysn32_call_table)
        PTR     sys_sched_getscheduler
        PTR     sys_sched_get_priority_max
        PTR     sys_sched_get_priority_min
-        PTR     sys32_sched_rr_get_interval     /* 6145 */
+        PTR     sys_32_sched_rr_get_interval    /* 6145 */
        PTR     sys_mlock
        PTR     sys_munlock
        PTR     sys_mlockall
        PTR     sys_munlockall
        PTR     sys_vhangup                     /* 6150 */
        PTR     sys_pivot_root
-        PTR     sys32_sysctl
+        PTR     sys_32_sysctl
        PTR     sys_prctl
        PTR     compat_sys_adjtimex
        PTR     compat_sys_setrlimit            /* 6155 */
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index fefef4af8595..b0fef4ff9827 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -265,12 +265,12 @@ sys_call_table:
        PTR     sys_olduname
        PTR     sys_umask                       /* 4060 */
        PTR     sys_chroot
-        PTR     sys32_ustat
+        PTR     sys_32_ustat
        PTR     sys_dup2
        PTR     sys_getppid
        PTR     sys_getpgrp                     /* 4065 */
        PTR     sys_setsid
-        PTR     sys32_sigaction
+        PTR     sys_32_sigaction
        PTR     sys_sgetmask
        PTR     sys_ssetmask
        PTR     sys_setreuid                    /* 4070 */
@@ -293,7 +293,7 @@ sys_call_table:
        PTR     sys_swapon
        PTR     sys_reboot
        PTR     compat_sys_old_readdir
-        PTR     old_mmap                        /* 4090 */
+        PTR     sys_mips_mmap                   /* 4090 */
        PTR     sys_munmap
        PTR     sys_truncate
        PTR     sys_ftruncate
@@ -320,12 +320,12 @@ sys_call_table:
        PTR     compat_sys_wait4
        PTR     sys_swapoff                     /* 4115 */
        PTR     compat_sys_sysinfo
-        PTR     sys32_ipc
+        PTR     sys_32_ipc
        PTR     sys_fsync
        PTR     sys32_sigreturn
        PTR     sys32_clone                     /* 4120 */
        PTR     sys_setdomainname
-        PTR     sys32_newuname
+        PTR     sys_32_newuname
        PTR     sys_ni_syscall                  /* sys_modify_ldt */
        PTR     compat_sys_adjtimex
        PTR     sys_mprotect                    /* 4125 */
@@ -339,11 +339,11 @@ sys_call_table:
        PTR     sys_fchdir
        PTR     sys_bdflush
        PTR     sys_sysfs                       /* 4135 */
-        PTR     sys32_personality
+        PTR     sys_32_personality
        PTR     sys_ni_syscall                  /* for afs_syscall */
        PTR     sys_setfsuid
        PTR     sys_setfsgid
-        PTR     sys32_llseek                    /* 4140 */
+        PTR     sys_32_llseek                   /* 4140 */
        PTR     compat_sys_getdents
        PTR     compat_sys_select
        PTR     sys_flock
@@ -356,7 +356,7 @@ sys_call_table:
        PTR     sys_ni_syscall                  /* 4150 */
        PTR     sys_getsid
        PTR     sys_fdatasync
-        PTR     sys32_sysctl
+        PTR     sys_32_sysctl
        PTR     sys_mlock
        PTR     sys_munlock                     /* 4155 */
        PTR     sys_mlockall
@@ -368,7 +368,7 @@ sys_call_table:
        PTR     sys_sched_yield
        PTR     sys_sched_get_priority_max
        PTR     sys_sched_get_priority_min
-        PTR     sys32_sched_rr_get_interval     /* 4165 */
+        PTR     sys_32_sched_rr_get_interval    /* 4165 */
        PTR     compat_sys_nanosleep
        PTR     sys_mremap
        PTR     sys_accept
@@ -397,25 +397,25 @@ sys_call_table:
        PTR     sys_getresgid
        PTR     sys_prctl
        PTR     sys32_rt_sigreturn
-        PTR     sys32_rt_sigaction
+        PTR     sys_32_rt_sigaction
-        PTR     sys32_rt_sigprocmask            /* 4195 */
+        PTR     sys_32_rt_sigprocmask           /* 4195 */
-        PTR     sys32_rt_sigpending
+        PTR     sys_32_rt_sigpending
        PTR     compat_sys_rt_sigtimedwait
-        PTR     sys32_rt_sigqueueinfo
+        PTR     sys_32_rt_sigqueueinfo
        PTR     sys32_rt_sigsuspend
-        PTR     sys32_pread                     /* 4200 */
+        PTR     sys_32_pread                    /* 4200 */
-        PTR     sys32_pwrite
+        PTR     sys_32_pwrite
        PTR     sys_chown
        PTR     sys_getcwd
        PTR     sys_capget
        PTR     sys_capset                      /* 4205 */
        PTR     sys32_sigaltstack
-        PTR     sys32_sendfile
+        PTR     sys_32_sendfile
        PTR     sys_ni_syscall
        PTR     sys_ni_syscall
-        PTR     sys32_mmap2                     /* 4210 */
+        PTR     sys_mips_mmap2                  /* 4210 */
-        PTR     sys32_truncate64
+        PTR     sys_32_truncate64
-        PTR     sys32_ftruncate64
+        PTR     sys_32_ftruncate64
        PTR     sys_newstat
        PTR     sys_newlstat
        PTR     sys_newfstat                    /* 4215 */
@@ -481,7 +481,7 @@ sys_call_table:
        PTR     compat_sys_mq_notify            /* 4275 */
        PTR     compat_sys_mq_getsetattr
        PTR     sys_ni_syscall                  /* sys_vserver */
-        PTR     sys32_waitid
+        PTR     sys_32_waitid
        PTR     sys_ni_syscall                  /* available, was setaltroot */
        PTR     sys_add_key                     /* 4280 */
        PTR     sys_request_key
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index a4e106c56ab5..830c5ef9932b 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -19,6 +19,7 @@
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
 #include <linux/compiler.h>
+#include <linux/syscalls.h>
 #include <linux/uaccess.h>
 #include <asm/abi.h>
@@ -338,8 +339,8 @@ asmlinkage int sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
 }
 #ifdef CONFIG_TRAD_SIGNALS
-asmlinkage int sys_sigaction(int sig, const struct sigaction __user *act,
+SYSCALL_DEFINE3(sigaction, int, sig, const struct sigaction __user *, act,
-        struct sigaction __user *oact)
+        struct sigaction __user *, oact)
 {
        struct k_sigaction new_ka, old_ka;
        int ret;
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 652709b353ad..2e74075ac0ca 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -349,8 +349,8 @@ asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
        return -ERESTARTNOHAND;
 }
-asmlinkage int sys32_sigaction(int sig, const struct sigaction32 __user *act,
+SYSCALL_DEFINE3(32_sigaction, long, sig, const struct sigaction32 __user *, act,
-                               struct sigaction32 __user *oact)
+        struct sigaction32 __user *, oact)
 {
        struct k_sigaction new_ka, old_ka;
        int ret;
@@ -704,9 +704,9 @@ struct mips_abi mips_abi_32 = {
        .restart        = __NR_O32_restart_syscall
 };
-asmlinkage int sys32_rt_sigaction(int sig, const struct sigaction32 __user *act,
+SYSCALL_DEFINE4(32_rt_sigaction, int, sig,
-                                  struct sigaction32 __user *oact,
+        const struct sigaction32 __user *, act,
-                                  unsigned int sigsetsize)
+        struct sigaction32 __user *, oact, unsigned int, sigsetsize)
 {
        struct k_sigaction new_sa, old_sa;
        int ret = -EINVAL;
@@ -748,8 +748,8 @@ out:
        return ret;
 }
-asmlinkage int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
+SYSCALL_DEFINE4(32_rt_sigprocmask, int, how, compat_sigset_t __user *, set,
-        compat_sigset_t __user *oset, unsigned int sigsetsize)
+        compat_sigset_t __user *, oset, unsigned int, sigsetsize)
 {
        sigset_t old_set, new_set;
        int ret;
@@ -770,8 +770,8 @@ asmlinkage int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
        return ret;
 }
-asmlinkage int sys32_rt_sigpending(compat_sigset_t __user *uset,
+SYSCALL_DEFINE2(32_rt_sigpending, compat_sigset_t __user *, uset,
-        unsigned int sigsetsize)
+        unsigned int, sigsetsize)
 {
        int ret;
        sigset_t set;
@@ -787,7 +787,8 @@ asmlinkage int sys32_rt_sigpending(compat_sigset_t __user *uset,
        return ret;
 }
-asmlinkage int sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
+SYSCALL_DEFINE3(32_rt_sigqueueinfo, int, pid, int, sig,
+        compat_siginfo_t __user *, uinfo)
 {
        siginfo_t info;
        int ret;
@@ -802,10 +803,9 @@ asmlinkage int sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *
        return ret;
 }
-asmlinkage long
+SYSCALL_DEFINE5(32_waitid, int, which, compat_pid_t, pid,
-sys32_waitid(int which, compat_pid_t pid,
+             compat_siginfo_t __user *, uinfo, int, options,
-             compat_siginfo_t __user *uinfo, int options,
+             struct compat_rusage __user *, uru)
-             struct compat_rusage __user *uru)
 {
        siginfo_t info;
        struct rusage ru;
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 37970d9b2186..8cf384644040 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -152,9 +152,9 @@ out:
        return error;
 }
-asmlinkage unsigned long
+SYSCALL_DEFINE6(mips_mmap, unsigned long, addr, unsigned long, len,
-old_mmap(unsigned long addr, unsigned long len, int prot,
+        unsigned long, prot, unsigned long, flags, unsigned long,
-        int flags, int fd, off_t offset)
+        fd, off_t, offset)
 {
        unsigned long result;
@@ -168,9 +168,9 @@ out:
        return result;
 }
-asmlinkage unsigned long
+SYSCALL_DEFINE6(mips_mmap2, unsigned long, addr, unsigned long, len,
-sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
+        unsigned long, prot, unsigned long, flags, unsigned long, fd,
-          unsigned long flags, unsigned long fd, unsigned long pgoff)
+        unsigned long, pgoff)
 {
        if (pgoff & (~PAGE_MASK >> 12))
                return -EINVAL;
@@ -240,7 +240,7 @@ out:
 /*
 * Compacrapability ...
 */
-asmlinkage int sys_uname(struct old_utsname __user * name)
+SYSCALL_DEFINE1(uname, struct old_utsname __user *, name)
 {
        if (name && !copy_to_user(name, utsname(), sizeof (*name)))
                return 0;
@@ -250,7 +250,7 @@ asmlinkage int sys_uname(struct old_utsname __user * name)
 /*
 * Compacrapability ...
 */
-asmlinkage int sys_olduname(struct oldold_utsname __user * name)
+SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
 {
        int error;
@@ -279,7 +279,7 @@ asmlinkage int sys_olduname(struct oldold_utsname __user * name)
        return error;
 }
-asmlinkage int sys_set_thread_area(unsigned long addr)
+SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
 {
        struct thread_info *ti = task_thread_info(current);
@@ -290,7 +290,7 @@ asmlinkage int sys_set_thread_area(unsigned long addr)
        return 0;
 }
-asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
+asmlinkage int _sys_sysmips(long cmd, long arg1, long arg2, long arg3)
 {
        switch (cmd) {
        case MIPS_ATOMIC_SET:
@@ -325,8 +325,8 @@ asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
 *
 * This is really horribly ugly.
 */
-asmlinkage int sys_ipc(unsigned int call, int first, int second,
+SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, int, second,
-                       unsigned long third, void __user *ptr, long fifth)
+        unsigned long, third, void __user *, ptr, long, fifth)
 {
        int version, ret;
@@ -411,7 +411,7 @@ asmlinkage int sys_ipc(unsigned int call, int first, int second,
 /*
 * No implemented yet ...
 */
-asmlinkage int sys_cachectl(char *addr, int nbytes, int op)
+SYSCALL_DEFINE3(cachectl, char *, addr, int, nbytes, int, op)
 {
        return -ENOSYS;
 }
diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index 98ad0a82c29e..694d51f523d1 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -13,6 +13,7 @@
 #include <linux/linkage.h>
 #include <linux/module.h>
 #include <linux/sched.h>
+#include <linux/syscalls.h>
 #include <linux/mm.h>
 #include <asm/cacheflush.h>
@@ -58,8 +59,8 @@ EXPORT_SYMBOL(_dma_cache_wback_inv);
 * We could optimize the case where the cache argument is not BCACHE but
 * that seems very atypical use ...
 */
-asmlinkage int sys_cacheflush(unsigned long addr,
+SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, bytes,
-        unsigned long bytes, unsigned int cache)
+        unsigned int, cache)
 {
        if (bytes == 0)
                return 0;
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index ada06924a423..73cb6a3229ae 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -367,27 +367,24 @@ static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
 static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
                           unsigned int flags)
 {
-        char *ptr = (char *) &current->thread.TS_FPR(reg);
+        char *ptr0 = (char *) &current->thread.TS_FPR(reg);
-        int i, ret;
+        char *ptr1 = (char *) &current->thread.TS_FPR(reg+1);
+        int i, ret, sw = 0;
        if (!(flags & F))
                return 0;
        if (reg & 1)
                return 0;       /* invalid form: FRS/FRT must be even */
-        if (!(flags & SW)) {
+        if (flags & SW)
-                /* not byte-swapped - easy */
+                sw = 7;
-                if (!(flags & ST))
+        ret = 0;
-                        ret = __copy_from_user(ptr, addr, 16);
+        for (i = 0; i < 8; ++i) {
-                else
+                if (!(flags & ST)) {
-                        ret = __copy_to_user(addr, ptr, 16);
+                        ret |= __get_user(ptr0[i^sw], addr + i);
-        } else {
+                        ret |= __get_user(ptr1[i^sw], addr + i + 8);
-                /* each FPR value is byte-swapped separately */
+                } else {
-                ret = 0;
+                        ret |= __put_user(ptr0[i^sw], addr + i);
-                for (i = 0; i < 16; ++i) {
+                        ret |= __put_user(ptr1[i^sw], addr + i + 8);
-                        if (!(flags & ST))
-                                ret |= __get_user(ptr[i^7], addr + i);
-                        else
-                                ret |= __put_user(ptr[i^7], addr + i);
                }
        }
        if (ret)
diff --git a/arch/powerpc/lib/copyuser_64.S b/arch/powerpc/lib/copyuser_64.S
index 70693a5c12a1..693b14a778fa 100644
--- a/arch/powerpc/lib/copyuser_64.S
+++ b/arch/powerpc/lib/copyuser_64.S
@@ -62,18 +62,19 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 72:     std     r8,8(r3)
        beq+    3f
        addi    r3,r3,16
-23:     ld      r9,8(r4)
 .Ldo_tail:
        bf      cr7*4+1,1f
-        rotldi  r9,r9,32
+23:     lwz     r9,8(r4)
+        addi    r4,r4,4
 73:     stw     r9,0(r3)
        addi    r3,r3,4
 1:      bf      cr7*4+2,2f
-        rotldi  r9,r9,16
+44:     lhz     r9,8(r4)
+        addi    r4,r4,2
 74:     sth     r9,0(r3)
        addi    r3,r3,2
 2:      bf      cr7*4+3,3f
-        rotldi  r9,r9,8
+45:     lbz     r9,8(r4)
 75:     stb     r9,0(r3)
 3:      li      r3,0
        blr
@@ -141,11 +142,24 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 6:      cmpwi   cr1,r5,8
        addi    r3,r3,32
        sld     r9,r9,r10
-        ble     cr1,.Ldo_tail
+        ble     cr1,7f
 34:     ld      r0,8(r4)
        srd     r7,r0,r11
        or      r9,r7,r9
-        b       .Ldo_tail
+7:
+        bf      cr7*4+1,1f
+        rotldi  r9,r9,32
+94:     stw     r9,0(r3)
+        addi    r3,r3,4
+1:      bf      cr7*4+2,2f
+        rotldi  r9,r9,16
+95:     sth     r9,0(r3)
+        addi    r3,r3,2
+2:      bf      cr7*4+3,3f
+        rotldi  r9,r9,8
+96:     stb     r9,0(r3)
+3:      li      r3,0
+        blr
 .Ldst_unaligned:
        PPC_MTOCRF      0x01,r6         /* put #bytes to 8B bdry into cr7 */
@@ -218,7 +232,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 121:
 132:
        addi    r3,r3,8
-123:
 134:
 135:
 138:
@@ -226,6 +239,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 140:
 141:
 142:
+123:
+144:
+145:
 /*
 * here we have had a fault on a load and r3 points to the first
@@ -309,6 +325,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 187:
 188:
 189:    
+194:
+195:
+196:
 1:
        ld      r6,-24(r1)
        ld      r5,-8(r1)
@@ -329,7 +348,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
        .llong  72b,172b
        .llong  23b,123b
        .llong  73b,173b
+        .llong  44b,144b
        .llong  74b,174b
+        .llong  45b,145b
        .llong  75b,175b
        .llong  24b,124b
        .llong  25b,125b
@@ -347,6 +368,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
        .llong  79b,179b
        .llong  80b,180b
        .llong  34b,134b
+        .llong  94b,194b
+        .llong  95b,195b
+        .llong  96b,196b
        .llong  35b,135b
        .llong  81b,181b
        .llong  36b,136b
diff --git a/arch/powerpc/lib/memcpy_64.S b/arch/powerpc/lib/memcpy_64.S
index fe2d34e5332d..e178922b2c21 100644
--- a/arch/powerpc/lib/memcpy_64.S
+++ b/arch/powerpc/lib/memcpy_64.S
@@ -53,18 +53,19 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 3:      std     r8,8(r3)
        beq     3f
        addi    r3,r3,16
-        ld      r9,8(r4)
 .Ldo_tail:
        bf      cr7*4+1,1f
-        rotldi  r9,r9,32
+        lwz     r9,8(r4)
+        addi    r4,r4,4
        stw     r9,0(r3)
        addi    r3,r3,4
 1:      bf      cr7*4+2,2f
-        rotldi  r9,r9,16
+        lhz     r9,8(r4)
+        addi    r4,r4,2
        sth     r9,0(r3)
        addi    r3,r3,2
 2:      bf      cr7*4+3,3f
-        rotldi  r9,r9,8
+        lbz     r9,8(r4)
        stb     r9,0(r3)
 3:      ld      r3,48(r1)       /* return dest pointer */
        blr
@@ -133,11 +134,24 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
        cmpwi   cr1,r5,8
        addi    r3,r3,32
        sld     r9,r9,r10
-        ble     cr1,.Ldo_tail
+        ble     cr1,6f
        ld      r0,8(r4)
        srd     r7,r0,r11
        or      r9,r7,r9
-        b       .Ldo_tail
+6:
+        bf      cr7*4+1,1f
+        rotldi  r9,r9,32
+        stw     r9,0(r3)
+        addi    r3,r3,4
+1:      bf      cr7*4+2,2f
+        rotldi  r9,r9,16
+        sth     r9,0(r3)
+        addi    r3,r3,2
+2:      bf      cr7*4+3,3f
+        rotldi  r9,r9,8
+        stb     r9,0(r3)
+3:      ld      r3,48(r1)       /* return dest pointer */
+        blr
 .Ldst_unaligned:
        PPC_MTOCRF      0x01,r6         # put #bytes to 8B bdry into cr7
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c
index 77fae5f64f2e..5558d932b4d5 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -204,6 +204,23 @@ static int __init ppc4xx_setup_one_pci_PMM(struct pci_controller	*hose,
 {
        u32 ma, pcila, pciha;
+        /* Hack warning ! The "old" PCI 2.x cell only let us configure the low
+         * 32-bit of incoming PLB addresses. The top 4 bits of the 36-bit
+         * address are actually hard wired to a value that appears to depend
+         * on the specific SoC. For example, it's 0 on 440EP and 1 on 440EPx.
+         *
+         * The trick here is we just crop those top bits and ignore them when
+         * programming the chip. That means the device-tree has to be right
+         * for the specific part used (we don't print a warning if it's wrong
+         * but on the other hand, you'll crash quickly enough), but at least
+         * this code should work whatever the hard coded value is
+         */
+        plb_addr &= 0xffffffffull;
+        /* Note: Due to the above hack, the test below doesn't actually test
+         * if you address is above 4G, but it tests that address and
+         * (address + size) are both contained in the same 4G
+         */
        if ((plb_addr + size) > 0xffffffffull || !is_power_of_2(size) ||
            size < 0x1000 || (plb_addr & (size - 1)) != 0) {
                printk(KERN_WARNING "%s: Resource out of range\n",
diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c
index 7c35787d29b4..72da416f6162 100644
--- a/arch/sh/boards/board-ap325rxa.c
+++ b/arch/sh/boards/board-ap325rxa.c
@@ -22,7 +22,6 @@
 #include <linux/gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_gpio.h>
-#include <media/ov772x.h>
 #include <media/soc_camera_platform.h>
 #include <media/sh_mobile_ceu.h>
 #include <video/sh_mobile_lcdc.h>
@@ -224,7 +223,6 @@ static void camera_power(int val)
 }
 #ifdef CONFIG_I2C
-/* support for the old ncm03j camera */
 static unsigned char camera_ncm03j_magic[] =
 {
        0x87, 0x00, 0x88, 0x08, 0x89, 0x01, 0x8A, 0xE8,
@@ -245,23 +243,6 @@ static unsigned char camera_ncm03j_magic[] =
        0x63, 0xD4, 0x64, 0xEA, 0xD6, 0x0F,
 };
-static int camera_probe(void)
-{
-        struct i2c_adapter *a = i2c_get_adapter(0);
-        struct i2c_msg msg;
-        int ret;
-        camera_power(1);
-        msg.addr = 0x6e;
-        msg.buf = camera_ncm03j_magic;
-        msg.len = 2;
-        msg.flags = 0;
-        ret = i2c_transfer(a, &msg, 1);
-        camera_power(0);
-        return ret;
-}
 static int camera_set_capture(struct soc_camera_platform_info *info,
                              int enable)
 {
@@ -313,35 +294,8 @@ static struct platform_device camera_device = {
                .platform_data  = &camera_info,
        },
 };
-static int __init camera_setup(void)
-{
-        if (camera_probe() > 0)
-                platform_device_register(&camera_device);
-        return 0;
-}
-late_initcall(camera_setup);
 #endif /* CONFIG_I2C */
-static int ov7725_power(struct device *dev, int mode)
-{
-        camera_power(0);
-        if (mode)
-                camera_power(1);
-        return 0;
-}
-static struct ov772x_camera_info ov7725_info = {
-        .buswidth  = SOCAM_DATAWIDTH_8,
-        .flags = OV772X_FLAG_VFLIP | OV772X_FLAG_HFLIP,
-        .link = {
-                .power  = ov7725_power,
-        },
-};
 static struct sh_mobile_ceu_info sh_mobile_ceu_info = {
        .flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_HSYNC_ACTIVE_HIGH |
        SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_MASTER | SOCAM_DATAWIDTH_8,
@@ -392,6 +346,9 @@ static struct platform_device *ap325rxa_devices[] __initdata = {
        &ap325rxa_nor_flash_device,
        &lcdc_device,
        &ceu_device,
+#ifdef CONFIG_I2C
+        &camera_device,
+#endif
        &nand_flash_device,
        &sdcard_cn3_device,
 };
@@ -400,10 +357,6 @@ static struct i2c_board_info __initdata ap325rxa_i2c_devices[] = {
        {
                I2C_BOARD_INFO("pcf8563", 0x51),
        },
-        {
-                I2C_BOARD_INFO("ov772x", 0x21),
-                .platform_data = &ov7725_info,
-        },
 };
 static struct spi_board_info ap325rxa_spi_devices[] = {
diff --git a/arch/sh/kernel/cpu/sh2a/clock-sh7201.c b/arch/sh/kernel/cpu/sh2a/clock-sh7201.c
index 020a96fe961a..4a5e59732334 100644
--- a/arch/sh/kernel/cpu/sh2a/clock-sh7201.c
+++ b/arch/sh/kernel/cpu/sh2a/clock-sh7201.c
@@ -18,8 +18,8 @@
 #include <asm/freq.h>
 #include <asm/io.h>
-const static int pll1rate[]={1,2,3,4,6,8};
+static const int pll1rate[]={1,2,3,4,6,8};
-const static int pfc_divisors[]={1,2,3,4,6,8,12};
+static const int pfc_divisors[]={1,2,3,4,6,8,12};
 #define ifc_divisors pfc_divisors
 #if (CONFIG_SH_CLK_MD == 0)
diff --git a/arch/sparc/kernel/chmc.c b/arch/sparc/kernel/chmc.c
index 3b9f4d6e14a9..e1a9598e2a4d 100644
--- a/arch/sparc/kernel/chmc.c
+++ b/arch/sparc/kernel/chmc.c
@@ -306,6 +306,7 @@ static int jbusmc_print_dimm(int syndrome_code,
                buf[1] = '?';
                buf[2] = '?';
                buf[3] = '\0';
+                return 0;
        }
        p = dp->controller;
        prop = &p->layout;
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9c39095b33fc..bc2fbadff9f9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1803,7 +1803,7 @@ config DMAR
          remapping devices.
 config DMAR_DEFAULT_ON
-        def_bool n
+        def_bool y
        prompt "Enable DMA Remapping Devices by default"
        depends on DMAR
        help
diff --git a/arch/x86/include/asm/iomap.h b/arch/x86/include/asm/iomap.h
index c1f06289b14b..86af26091d6c 100644
--- a/arch/x86/include/asm/iomap.h
+++ b/arch/x86/include/asm/iomap.h
@@ -23,6 +23,9 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
+int
+is_io_mapping_possible(resource_size_t base, unsigned long size);
 void *
 iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 24ff26a38ade..5fff00c70de0 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -4,6 +4,7 @@
 #include <linux/string.h>
 #include <linux/bitops.h>
 #include <linux/smp.h>
+#include <linux/sched.h>
 #include <linux/thread_info.h>
 #include <linux/module.h>
@@ -56,11 +57,16 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
        /*
         * c->x86_power is 8000_0007 edx. Bit 8 is TSC runs at constant rate
-         * with P/T states and does not stop in deep C-states
+         * with P/T states and does not stop in deep C-states.
+         *
+         * It is also reliable across cores and sockets. (but not across
+         * cabinets - we turn it off in that case explicitly.)
         */
        if (c->x86_power & (1 << 8)) {
                set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
                set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC);
+                set_cpu_cap(c, X86_FEATURE_TSC_RELIABLE);
+                sched_clock_stable = 1;
        }
 }
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index 7ffcdeec4631..b9cc84a2a4fc 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -65,7 +65,7 @@ static volatile unsigned long smp_invalidate_needed;
 /* Bitmask of CPUs present in the system - exported by i386_syms.c, used
 * by scheduler but indexed physically */
-cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
+static cpumask_t voyager_phys_cpu_present_map = CPU_MASK_NONE;
 /* The internal functions */
 static void send_CPI(__u32 cpuset, __u8 cpi);
@@ -366,19 +366,19 @@ void __init find_smp_config(void)
        /* set up everything for just this CPU, we can alter
         * this as we start the other CPUs later */
        /* now get the CPU disposition from the extended CMOS */
-        cpus_addr(phys_cpu_present_map)[0] =
+        cpus_addr(voyager_phys_cpu_present_map)[0] =
            voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK);
-        cpus_addr(phys_cpu_present_map)[0] |=
+        cpus_addr(voyager_phys_cpu_present_map)[0] |=
            voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 1) << 8;
-        cpus_addr(phys_cpu_present_map)[0] |=
+        cpus_addr(voyager_phys_cpu_present_map)[0] |=
            voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK +
                                       2) << 16;
-        cpus_addr(phys_cpu_present_map)[0] |=
+        cpus_addr(voyager_phys_cpu_present_map)[0] |=
            voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK +
                                       3) << 24;
-        init_cpu_possible(&phys_cpu_present_map);
+        init_cpu_possible(&voyager_phys_cpu_present_map);
-        printk("VOYAGER SMP: phys_cpu_present_map = 0x%lx\n",
+        printk("VOYAGER SMP: voyager_phys_cpu_present_map = 0x%lx\n",
-               cpus_addr(phys_cpu_present_map)[0]);
+               cpus_addr(voyager_phys_cpu_present_map)[0]);
        /* Here we set up the VIC to enable SMP */
        /* enable the CPIs by writing the base vector to their register */
        outb(VIC_DEFAULT_CPI_BASE, VIC_CPI_BASE_REGISTER);
@@ -628,15 +628,15 @@ void __init smp_boot_cpus(void)
                /* now that the cat has probed the Voyager System Bus, sanity
                 * check the cpu map */
                if (((voyager_quad_processors | voyager_extended_vic_processors)
-                     & cpus_addr(phys_cpu_present_map)[0]) !=
+                     & cpus_addr(voyager_phys_cpu_present_map)[0]) !=
-                    cpus_addr(phys_cpu_present_map)[0]) {
+                    cpus_addr(voyager_phys_cpu_present_map)[0]) {
                        /* should panic */
                        printk("\n\n***WARNING*** "
                               "Sanity check of CPU present map FAILED\n");
                }
        } else if (voyager_level == 4)
                voyager_extended_vic_processors =
-                    cpus_addr(phys_cpu_present_map)[0];
+                    cpus_addr(voyager_phys_cpu_present_map)[0];
        /* this sets up the idle task to run on the current cpu */
        voyager_extended_cpus = 1;
@@ -670,7 +670,7 @@ void __init smp_boot_cpus(void)
        /* loop over all the extended VIC CPUs and boot them.  The
         * Quad CPUs must be bootstrapped by their extended VIC cpu */
        for (i = 0; i < nr_cpu_ids; i++) {
-                if (i == boot_cpu_id || !cpu_isset(i, phys_cpu_present_map))
+                if (i == boot_cpu_id || !cpu_isset(i, voyager_phys_cpu_present_map))
                        continue;
                do_boot_cpu(i);
                /* This udelay seems to be needed for the Quad boots
diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
index ca53224fc56c..6c2b1af16926 100644
--- a/arch/x86/mm/iomap_32.c
+++ b/arch/x86/mm/iomap_32.c
@@ -20,6 +20,24 @@
 #include <asm/pat.h>
 #include <linux/module.h>
+#ifdef CONFIG_X86_PAE
+int
+is_io_mapping_possible(resource_size_t base, unsigned long size)
+{
+        return 1;
+}
+#else
+int
+is_io_mapping_possible(resource_size_t base, unsigned long size)
+{
+        /* There is no way to map greater than 1 << 32 address without PAE */
+        if (base + size > 0x100000000ULL)
+                return 0;
+        return 1;
+}
+#endif
 /* Map 'pfn' using fixed map 'type' and protections 'prot'
 */
 void *
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index bea215230b20..b58e96338149 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1672,6 +1672,9 @@ asmlinkage void __init xen_start_kernel(void)
           possible map and a non-dummy shared_info. */
        per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
+        local_irq_disable();
+        early_boot_irqs_off();
        xen_raw_console_write("mapping kernel into physical memory\n");
        pgd = xen_setup_kernel_pagetable(pgd, xen_start_info->nr_pages);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index b92f5b0866b0..a104593e70c3 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -38,72 +38,84 @@ void blk_recalc_rq_sectors(struct request *rq, int nsect)
        }
 }
-void blk_recalc_rq_segments(struct request *rq)
+static unsigned int __blk_recalc_rq_segments(struct request_queue *q,
+                                             struct bio *bio,
+                                             unsigned int *seg_size_ptr)
 {
-        int nr_phys_segs;
        unsigned int phys_size;
        struct bio_vec *bv, *bvprv = NULL;
-        int seg_size;
+        int cluster, i, high, highprv = 1;
-        int cluster;
+        unsigned int seg_size, nr_phys_segs;
-        struct req_iterator iter;
+        struct bio *fbio;
-        int high, highprv = 1;
-        struct request_queue *q = rq->q;
-        if (!rq->bio)
+        if (!bio)
-                return;
+                return 0;
+        fbio = bio;
        cluster = test_bit(QUEUE_FLAG_CLUSTER, &q->queue_flags);
        seg_size = 0;
        phys_size = nr_phys_segs = 0;
-        rq_for_each_segment(bv, rq, iter) {
+        for_each_bio(bio) {
-                /*
+                bio_for_each_segment(bv, bio, i) {
-                 * the trick here is making sure that a high page is never
+                        /*
-                 * considered part of another segment, since that might
+                         * the trick here is making sure that a high page is
-                 * change with the bounce page.
+                         * never considered part of another segment, since that
-                 */
+                         * might change with the bounce page.
-                high = page_to_pfn(bv->bv_page) > q->bounce_pfn;
+                         */
-                if (high || highprv)
+                        high = page_to_pfn(bv->bv_page) > q->bounce_pfn;
-                        goto new_segment;
+                        if (high || highprv)
-                if (cluster) {
-                        if (seg_size + bv->bv_len > q->max_segment_size)
-                                goto new_segment;
-                        if (!BIOVEC_PHYS_MERGEABLE(bvprv, bv))
-                                goto new_segment;
-                        if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bv))
                                goto new_segment;
+                        if (cluster) {
+                                if (seg_size + bv->bv_len > q->max_segment_size)
+                                        goto new_segment;
+                                if (!BIOVEC_PHYS_MERGEABLE(bvprv, bv))
+                                        goto new_segment;
+                                if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bv))
+                                        goto new_segment;
+                                seg_size += bv->bv_len;
+                                bvprv = bv;
+                                continue;
+                        }
+new_segment:
+                        if (nr_phys_segs == 1 && seg_size >
+                            fbio->bi_seg_front_size)
+                                fbio->bi_seg_front_size = seg_size;
-                        seg_size += bv->bv_len;
+                        nr_phys_segs++;
                        bvprv = bv;
-                        continue;
+                        seg_size = bv->bv_len;
+                        highprv = high;
                }
-new_segment:
-                if (nr_phys_segs == 1 && seg_size > rq->bio->bi_seg_front_size)
-                        rq->bio->bi_seg_front_size = seg_size;
-                nr_phys_segs++;
-                bvprv = bv;
-                seg_size = bv->bv_len;
-                highprv = high;
        }
-        if (nr_phys_segs == 1 && seg_size > rq->bio->bi_seg_front_size)
+        if (seg_size_ptr)
+                *seg_size_ptr = seg_size;
+        return nr_phys_segs;
+}
+void blk_recalc_rq_segments(struct request *rq)
+{
+        unsigned int seg_size = 0, phys_segs;
+        phys_segs = __blk_recalc_rq_segments(rq->q, rq->bio, &seg_size);
+        if (phys_segs == 1 && seg_size > rq->bio->bi_seg_front_size)
                rq->bio->bi_seg_front_size = seg_size;
        if (seg_size > rq->biotail->bi_seg_back_size)
                rq->biotail->bi_seg_back_size = seg_size;
-        rq->nr_phys_segments = nr_phys_segs;
+        rq->nr_phys_segments = phys_segs;
 }
 void blk_recount_segments(struct request_queue *q, struct bio *bio)
 {
-        struct request rq;
        struct bio *nxt = bio->bi_next;
-        rq.q = q;
-        rq.bio = rq.biotail = bio;
        bio->bi_next = NULL;
-        blk_recalc_rq_segments(&rq);
+        bio->bi_phys_segments = __blk_recalc_rq_segments(q, bio, NULL);
        bio->bi_next = nxt;
-        bio->bi_phys_segments = rq.nr_phys_segments;
        bio->bi_flags |= (1 << BIO_SEG_VALID);
 }
 EXPORT_SYMBOL(blk_recount_segments);
diff --git a/block/genhd.c b/block/genhd.c
index e1eadcc9546a..a9ec910974c1 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -256,6 +256,22 @@ void blkdev_show(struct seq_file *seqf, off_t offset)
 }
 #endif /* CONFIG_PROC_FS */
+/**
+ * register_blkdev - register a new block device
+ *
+ * @major: the requested major device number [1..255]. If @major=0, try to
+ *         allocate any unused major number.
+ * @name: the name of the new block device as a zero terminated string
+ *
+ * The @name must be unique within the system.
+ *
+ * The return value depends on the @major input parameter.
+ *  - if a major device number was requested in range [1..255] then the
+ *    function returns zero on success, or a negative error code
+ *  - if any unused major number was requested with @major=0 parameter
+ *    then the return value is the allocated major number in range
+ *    [1..255] or a negative error code otherwise
+ */
 int register_blkdev(unsigned int major, const char *name)
 {
        struct blk_major_name **n, *p;
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index 63719ab9ea44..115b1cd6dcf5 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -24,7 +24,7 @@
 #include <linux/libata.h>
 #define DRV_NAME "pata_amd"
-#define DRV_VERSION "0.3.11"
+#define DRV_VERSION "0.4.1"
 /**
 *      timing_setup            -       shared timing computation and load
@@ -145,6 +145,13 @@ static int amd_pre_reset(struct ata_link *link, unsigned long deadline)
        return ata_sff_prereset(link, deadline);
 }
+/**
+ *      amd_cable_detect        -       report cable type
+ *      @ap: port
+ *
+ *      AMD controller/BIOS setups record the cable type in word 0x42
+ */
 static int amd_cable_detect(struct ata_port *ap)
 {
        static const u32 bitmask[2] = {0x03, 0x0C};
@@ -158,6 +165,40 @@ static int amd_cable_detect(struct ata_port *ap)
 }
 /**
+ *      amd_fifo_setup          -       set the PIO FIFO for ATA/ATAPI
+ *      @ap: ATA interface
+ *      @adev: ATA device
+ *
+ *      Set the PCI fifo for this device according to the devices present
+ *      on the bus at this point in time. We need to turn the post write buffer
+ *      off for ATAPI devices as we may need to issue a word sized write to the
+ *      device as the final I/O
+ */
+static void amd_fifo_setup(struct ata_port *ap)
+{
+        struct ata_device *adev;
+        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+        static const u8 fifobit[2] = { 0xC0, 0x30};
+        u8 fifo = fifobit[ap->port_no];
+        u8 r;
+        ata_for_each_dev(adev, &ap->link, ENABLED) {
+                if (adev->class == ATA_DEV_ATAPI)
+                        fifo = 0;
+        }
+        if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7411) /* FIFO is broken */
+                fifo = 0;
+        /* On the later chips the read prefetch bits become no-op bits */
+        pci_read_config_byte(pdev, 0x41, &r);
+        r &= ~fifobit[ap->port_no];
+        r |= fifo;
+        pci_write_config_byte(pdev, 0x41, r);
+}
+/**
 *      amd33_set_piomode       -       set initial PIO mode data
 *      @ap: ATA interface
 *      @adev: ATA device
@@ -167,21 +208,25 @@ static int amd_cable_detect(struct ata_port *ap)
 static void amd33_set_piomode(struct ata_port *ap, struct ata_device *adev)
 {
+        amd_fifo_setup(ap);
        timing_setup(ap, adev, 0x40, adev->pio_mode, 1);
 }
 static void amd66_set_piomode(struct ata_port *ap, struct ata_device *adev)
 {
+        amd_fifo_setup(ap);
        timing_setup(ap, adev, 0x40, adev->pio_mode, 2);
 }
 static void amd100_set_piomode(struct ata_port *ap, struct ata_device *adev)
 {
+        amd_fifo_setup(ap);
        timing_setup(ap, adev, 0x40, adev->pio_mode, 3);
 }
 static void amd133_set_piomode(struct ata_port *ap, struct ata_device *adev)
 {
+        amd_fifo_setup(ap);
        timing_setup(ap, adev, 0x40, adev->pio_mode, 4);
 }
@@ -397,6 +442,16 @@ static struct ata_port_operations nv133_port_ops = {
        .set_dmamode    = nv133_set_dmamode,
 };
+static void amd_clear_fifo(struct pci_dev *pdev)
+{
+        u8 fifo;
+        /* Disable the FIFO, the FIFO logic will re-enable it as
+           appropriate */
+        pci_read_config_byte(pdev, 0x41, &fifo);
+        fifo &= 0x0F;
+        pci_write_config_byte(pdev, 0x41, fifo);
+}
 static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 {
        static const struct ata_port_info info[10] = {
@@ -503,14 +558,8 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
        if (type < 3)
                ata_pci_bmdma_clear_simplex(pdev);
+        if (pdev->vendor == PCI_VENDOR_ID_AMD)
-        /* Check for AMD7411 */
+                amd_clear_fifo(pdev);
-        if (type == 3)
-                /* FIFO is broken */
-                pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
-        else
-                pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
        /* Cable detection on Nvidia chips doesn't work too well,
         * cache BIOS programmed UDMA mode.
         */
@@ -536,18 +585,11 @@ static int amd_reinit_one(struct pci_dev *pdev)
                return rc;
        if (pdev->vendor == PCI_VENDOR_ID_AMD) {
-                u8 fifo;
+                amd_clear_fifo(pdev);
-                pci_read_config_byte(pdev, 0x41, &fifo);
-                if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7411)
-                        /* FIFO is broken */
-                        pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
-                else
-                        pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
                if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7409 ||
                    pdev->device == PCI_DEVICE_ID_AMD_COBRA_7401)
                        ata_pci_bmdma_clear_simplex(pdev);
        }
        ata_host_resume(host);
        return 0;
 }
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index f1bb2f9fecbf..b05b86a912c5 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -557,6 +557,9 @@ static unsigned int it821x_read_id(struct ata_device *adev,
                id[83] |= 0x4400;       /* Word 83 is valid and LBA48 */
                id[86] |= 0x0400;       /* LBA48 on */
                id[ATA_ID_MAJOR_VER] |= 0x1F;
+                /* Clear the serial number because it's different each boot
+                   which breaks validation on resume */
+                memset(&id[ATA_ID_SERNO], 0x20, ATA_ID_SERNO_LEN);
        }
        return err_mask;
 }
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index 6c1d778b63a9..e3bc1b436284 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -283,9 +283,10 @@ static void pdc20230_set_piomode(struct ata_port *ap, struct ata_device *adev)
 static unsigned int pdc_data_xfer_vlb(struct ata_device *dev,
                        unsigned char *buf, unsigned int buflen, int rw)
 {
-        if (ata_id_has_dword_io(dev->id)) {
+        int slop = buflen & 3;
+        /* 32bit I/O capable *and* we need to write a whole number of dwords */
+        if (ata_id_has_dword_io(dev->id) && (slop == 0 || slop == 3)) {
                struct ata_port *ap = dev->link->ap;
-                int slop = buflen & 3;
                unsigned long flags;
                local_irq_save(flags);
@@ -735,7 +736,7 @@ static unsigned int vlb32_data_xfer(struct ata_device *adev, unsigned char *buf,
        struct ata_port *ap = adev->link->ap;
        int slop = buflen & 3;
-        if (ata_id_has_dword_io(adev->id)) {
+        if (ata_id_has_dword_io(adev->id) && (slop == 0 || slop == 3)) {
                if (rw == WRITE)
                        iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
                else
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 4ae1a4138b47..7007edd2d451 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -3114,19 +3114,17 @@ static int mv_init_host(struct ata_host *host, unsigned int board_idx)
                writelfl(0, hc_mmio + HC_IRQ_CAUSE_OFS);
        }
-        if (!IS_SOC(hpriv)) {
+        /* Clear any currently outstanding host interrupt conditions */
-                /* Clear any currently outstanding host interrupt conditions */
+        writelfl(0, mmio + hpriv->irq_cause_ofs);
-                writelfl(0, mmio + hpriv->irq_cause_ofs);
-                /* and unmask interrupt generation for host regs */
+        /* and unmask interrupt generation for host regs */
-                writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_ofs);
+        writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_ofs);
-                /*
+        /*
-                 * enable only global host interrupts for now.
+         * enable only global host interrupts for now.
-                 * The per-port interrupts get done later as ports are set up.
+         * The per-port interrupts get done later as ports are set up.
-                 */
+         */
-                mv_set_main_irq_mask(host, 0, PCI_ERR);
+        mv_set_main_irq_mask(host, 0, PCI_ERR);
-        }
 done:
        return rc;
 }
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index d2cb67b61176..b5a061114630 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3611,11 +3611,15 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
                schedule_timeout_uninterruptible(30*HZ);
                /* Now try to get the controller to respond to a no-op */
-                for (i=0; i<12; i++) {
+                for (i=0; i<30; i++) {
                        if (cciss_noop(pdev) == 0)
                                break;
-                        else
-                                printk("cciss: no-op failed%s\n", (i < 11 ? "; re-trying" : ""));
+                        schedule_timeout_uninterruptible(HZ);
+                }
+                if (i == 30) {
+                        printk(KERN_ERR "cciss: controller seems dead\n");
+                        return -EBUSY;
                }
        }
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 918ef725de41..b6c8ce254359 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -40,6 +40,7 @@
 #include <linux/hdreg.h>
 #include <linux/cdrom.h>
 #include <linux/module.h>
+#include <linux/scatterlist.h>
 #include <xen/xenbus.h>
 #include <xen/grant_table.h>
@@ -82,6 +83,7 @@ struct blkfront_info
        enum blkif_state connected;
        int ring_ref;
        struct blkif_front_ring ring;
+        struct scatterlist sg[BLKIF_MAX_SEGMENTS_PER_REQUEST];
        unsigned int evtchn, irq;
        struct request_queue *rq;
        struct work_struct work;
@@ -204,12 +206,11 @@ static int blkif_queue_request(struct request *req)
        struct blkfront_info *info = req->rq_disk->private_data;
        unsigned long buffer_mfn;
        struct blkif_request *ring_req;
-        struct req_iterator iter;
-        struct bio_vec *bvec;
        unsigned long id;
        unsigned int fsect, lsect;
-        int ref;
+        int i, ref;
        grant_ref_t gref_head;
+        struct scatterlist *sg;
        if (unlikely(info->connected != BLKIF_STATE_CONNECTED))
                return 1;
@@ -238,12 +239,13 @@ static int blkif_queue_request(struct request *req)
        if (blk_barrier_rq(req))
                ring_req->operation = BLKIF_OP_WRITE_BARRIER;
-        ring_req->nr_segments = 0;
+        ring_req->nr_segments = blk_rq_map_sg(req->q, req, info->sg);
-        rq_for_each_segment(bvec, req, iter) {
+        BUG_ON(ring_req->nr_segments > BLKIF_MAX_SEGMENTS_PER_REQUEST);
-                BUG_ON(ring_req->nr_segments == BLKIF_MAX_SEGMENTS_PER_REQUEST);
-                buffer_mfn = pfn_to_mfn(page_to_pfn(bvec->bv_page));
+        for_each_sg(info->sg, sg, ring_req->nr_segments, i) {
-                fsect = bvec->bv_offset >> 9;
+                buffer_mfn = pfn_to_mfn(page_to_pfn(sg_page(sg)));
-                lsect = fsect + (bvec->bv_len >> 9) - 1;
+                fsect = sg->offset >> 9;
+                lsect = fsect + (sg->length >> 9) - 1;
                /* install a grant reference. */
                ref = gnttab_claim_grant_reference(&gref_head);
                BUG_ON(ref == -ENOSPC);
@@ -254,16 +256,12 @@ static int blkif_queue_request(struct request *req)
                                buffer_mfn,
                                rq_data_dir(req) );
-                info->shadow[id].frame[ring_req->nr_segments] =
+                info->shadow[id].frame[i] = mfn_to_pfn(buffer_mfn);
-                                mfn_to_pfn(buffer_mfn);
+                ring_req->seg[i] =
-                ring_req->seg[ring_req->nr_segments] =
                                (struct blkif_request_segment) {
                                        .gref       = ref,
                                        .first_sect = fsect,
                                        .last_sect  = lsect };
-                ring_req->nr_segments++;
        }
        info->ring.req_prod_pvt++;
@@ -622,6 +620,8 @@ static int setup_blkring(struct xenbus_device *dev,
        SHARED_RING_INIT(sring);
        FRONT_RING_INIT(&info->ring, sring, PAGE_SIZE);
+        sg_init_table(info->sg, BLKIF_MAX_SEGMENTS_PER_REQUEST);
        err = xenbus_grant_ring(dev, virt_to_mfn(info->ring.sring));
        if (err < 0) {
                free_page((unsigned long)sring);
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 733028b4d45e..1c3a8c557140 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -452,6 +452,59 @@ static void drm_setup_crtcs(struct drm_device *dev)
        kfree(modes);
        kfree(enabled);
 }
+/**
+ * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
+ * @encoder: encoder to test
+ * @crtc: crtc to test
+ *
+ * Return false if @encoder can't be driven by @crtc, true otherwise.
+ */
+static bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
+                                struct drm_crtc *crtc)
+{
+        struct drm_device *dev;
+        struct drm_crtc *tmp;
+        int crtc_mask = 1;
+        WARN(!crtc, "checking null crtc?");
+        dev = crtc->dev;
+        list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
+                if (tmp == crtc)
+                        break;
+                crtc_mask <<= 1;
+        }
+        if (encoder->possible_crtcs & crtc_mask)
+                return true;
+        return false;
+}
+/*
+ * Check the CRTC we're going to map each output to vs. its current
+ * CRTC.  If they don't match, we have to disable the output and the CRTC
+ * since the driver will have to re-route things.
+ */
+static void
+drm_crtc_prepare_encoders(struct drm_device *dev)
+{
+        struct drm_encoder_helper_funcs *encoder_funcs;
+        struct drm_encoder *encoder;
+        list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+                encoder_funcs = encoder->helper_private;
+                /* Disable unused encoders */
+                if (encoder->crtc == NULL)
+                        (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);
+                /* Disable encoders whose CRTC is about to change */
+                if (encoder_funcs->get_crtc &&
+                    encoder->crtc != (*encoder_funcs->get_crtc)(encoder))
+                        (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);
+        }
+}
 /**
 * drm_crtc_set_mode - set a mode
 * @crtc: CRTC to program
@@ -547,6 +600,8 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
                encoder_funcs->prepare(encoder);
        }
+        drm_crtc_prepare_encoders(dev);
        crtc_funcs->prepare(crtc);
        /* Set up the DPLL and any encoders state that needs to adjust or depend
@@ -617,7 +672,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
        struct drm_device *dev;
        struct drm_crtc **save_crtcs, *new_crtc;
        struct drm_encoder **save_encoders, *new_encoder;
-        struct drm_framebuffer *old_fb;
+        struct drm_framebuffer *old_fb = NULL;
        bool save_enabled;
        bool mode_changed = false;
        bool fb_changed = false;
@@ -668,9 +723,10 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
         * and then just flip_or_move it */
        if (set->crtc->fb != set->fb) {
                /* If we have no fb then treat it as a full mode set */
-                if (set->crtc->fb == NULL)
+                if (set->crtc->fb == NULL) {
+                        DRM_DEBUG("crtc has no fb, full mode set\n");
                        mode_changed = true;
-                else if ((set->fb->bits_per_pixel !=
+                } else if ((set->fb->bits_per_pixel !=
                         set->crtc->fb->bits_per_pixel) ||
                         set->fb->depth != set->crtc->fb->depth)
                        fb_changed = true;
@@ -682,7 +738,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                fb_changed = true;
        if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
-                DRM_DEBUG("modes are different\n");
+                DRM_DEBUG("modes are different, full mode set\n");
                drm_mode_debug_printmodeline(&set->crtc->mode);
                drm_mode_debug_printmodeline(set->mode);
                mode_changed = true;
@@ -708,6 +764,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                }
                if (new_encoder != connector->encoder) {
+                        DRM_DEBUG("encoder changed, full mode switch\n");
                        mode_changed = true;
                        connector->encoder = new_encoder;
                }
@@ -734,10 +791,20 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                        if (set->connectors[ro] == connector)
                                new_crtc = set->crtc;
                }
+                /* Make sure the new CRTC will work with the encoder */
+                if (new_crtc &&
+                    !drm_encoder_crtc_ok(connector->encoder, new_crtc)) {
+                        ret = -EINVAL;
+                        goto fail_set_mode;
+                }
                if (new_crtc != connector->encoder->crtc) {
+                        DRM_DEBUG("crtc changed, full mode switch\n");
                        mode_changed = true;
                        connector->encoder->crtc = new_crtc;
                }
+                DRM_DEBUG("setting connector %d crtc to %p\n",
+                          connector->base.id, new_crtc);
        }
        /* mode_set_base is not a required function */
@@ -781,6 +848,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
 fail_set_mode:
        set->crtc->enabled = save_enabled;
+        set->crtc->fb = old_fb;
        count = 0;
        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
                if (!connector->encoder)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 5a4d3244758a..a839a28d8ee6 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -125,7 +125,7 @@ static bool edid_is_valid(struct edid *edid)
                DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);
                goto bad;
        }
-        if (edid->revision <= 0 || edid->revision > 3) {
+        if (edid->revision > 3) {
                DRM_ERROR("EDID has minor version %d, which is not between 0-3\n", edid->revision);
                goto bad;
        }
@@ -320,10 +320,10 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
        mode->htotal = mode->hdisplay + ((pt->hblank_hi << 8) | pt->hblank_lo);
        mode->vdisplay = (pt->vactive_hi << 8) | pt->vactive_lo;
-        mode->vsync_start = mode->vdisplay + ((pt->vsync_offset_hi << 8) |
+        mode->vsync_start = mode->vdisplay + ((pt->vsync_offset_hi << 4) |
                                              pt->vsync_offset_lo);
        mode->vsync_end = mode->vsync_start +
-                ((pt->vsync_pulse_width_hi << 8) |
+                ((pt->vsync_pulse_width_hi << 4) |
                 pt->vsync_pulse_width_lo);
        mode->vtotal = mode->vdisplay + ((pt->vblank_hi << 8) | pt->vblank_lo);
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 3795dbc0f50c..93e677a481f5 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -435,6 +435,8 @@ EXPORT_SYMBOL(drm_vblank_get);
 */
 void drm_vblank_put(struct drm_device *dev, int crtc)
 {
+        BUG_ON (atomic_read (&dev->vblank_refcount[crtc]) == 0);
        /* Last user schedules interrupt disable */
        if (atomic_dec_and_test(&dev->vblank_refcount[crtc]))
                mod_timer(&dev->vblank_disable_timer, jiffies + 5*DRM_HZ);
@@ -460,8 +462,9 @@ void drm_vblank_pre_modeset(struct drm_device *dev, int crtc)
         * so that interrupts remain enabled in the interim.
         */
        if (!dev->vblank_inmodeset[crtc]) {
-                dev->vblank_inmodeset[crtc] = 1;
+                dev->vblank_inmodeset[crtc] = 0x1;
-                drm_vblank_get(dev, crtc);
+                if (drm_vblank_get(dev, crtc) == 0)
+                        dev->vblank_inmodeset[crtc] |= 0x2;
        }
 }
 EXPORT_SYMBOL(drm_vblank_pre_modeset);
@@ -473,9 +476,12 @@ void drm_vblank_post_modeset(struct drm_device *dev, int crtc)
        if (dev->vblank_inmodeset[crtc]) {
                spin_lock_irqsave(&dev->vbl_lock, irqflags);
                dev->vblank_disable_allowed = 1;
-                dev->vblank_inmodeset[crtc] = 0;
                spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
-                drm_vblank_put(dev, crtc);
+                if (dev->vblank_inmodeset[crtc] & 0x2)
+                        drm_vblank_put(dev, crtc);
+                dev->vblank_inmodeset[crtc] = 0;
        }
 }
 EXPORT_SYMBOL(drm_vblank_post_modeset);
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 2d797ffe8137..6dab63bdc4c1 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -811,7 +811,7 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
        dev_priv->hws_map.flags = 0;
        dev_priv->hws_map.mtrr = 0;
-        drm_core_ioremap(&dev_priv->hws_map, dev);
+        drm_core_ioremap_wc(&dev_priv->hws_map, dev);
        if (dev_priv->hws_map.handle == NULL) {
                i915_dma_cleanup(dev);
                dev_priv->status_gfx_addr = 0;
@@ -1090,6 +1090,11 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
        dev_priv->mm.gtt_mapping =
                io_mapping_create_wc(dev->agp->base,
                                     dev->agp->agp_info.aper_size * 1024*1024);
+        if (dev_priv->mm.gtt_mapping == NULL) {
+                ret = -EIO;
+                goto out_rmmap;
+        }
        /* Set up a WC MTRR for non-PAT systems.  This is more common than
         * one would think, because the kernel disables PAT on first
         * generation Core chips because WC PAT gets overridden by a UC
@@ -1122,7 +1127,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
        if (!I915_NEED_GFX_HWS(dev)) {
                ret = i915_init_phys_hws(dev);
                if (ret != 0)
-                        goto out_rmmap;
+                        goto out_iomapfree;
        }
        /* On the 945G/GM, the chipset reports the MSI capability on the
@@ -1161,6 +1166,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
        return 0;
+out_iomapfree:
+        io_mapping_free(dev_priv->mm.gtt_mapping);
 out_rmmap:
        iounmap(dev_priv->regs);
 free_priv:
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 28b726d07a0c..85685bfd12da 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3548,7 +3548,7 @@ i915_gem_phys_pwrite(struct drm_device *dev, struct drm_gem_object *obj,
        user_data = (char __user *) (uintptr_t) args->data_ptr;
        obj_addr = obj_priv->phys_obj->handle->vaddr + args->offset;
-        DRM_ERROR("obj_addr %p, %lld\n", obj_addr, args->size);
+        DRM_DEBUG("obj_addr %p, %lld\n", obj_addr, args->size);
        ret = copy_from_user(obj_addr, user_data, args->size);
        if (ret)
                return -EFAULT;
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 65be30dccc77..fc28e2bbd542 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -111,6 +111,12 @@ parse_panel_data(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
        panel_fixed_mode->clock = dvo_timing->clock * 10;
        panel_fixed_mode->type = DRM_MODE_TYPE_PREFERRED;
+        /* Some VBTs have bogus h/vtotal values */
+        if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal)
+                panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1;
+        if (panel_fixed_mode->vsync_end > panel_fixed_mode->vtotal)
+                panel_fixed_mode->vtotal = panel_fixed_mode->vsync_end + 1;
        drm_mode_set_name(panel_fixed_mode);
        dev_priv->vbt_mode = panel_fixed_mode;
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 65b635ce28c8..a2834276cb38 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -217,7 +217,7 @@ bool intel_pipe_has_type (struct drm_crtc *crtc, int type)
    return false;
 }
-#define INTELPllInvalid(s)   do { DRM_DEBUG(s); return false; } while (0)
+#define INTELPllInvalid(s)   do { /* DRM_DEBUG(s); */ return false; } while (0)
 /**
 * Returns whether the given set of divisors are valid for a given refclk with
 * the given connectors.
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 3dad2299d9c5..e072903b12f0 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -46,7 +46,7 @@ menuconfig IDE
          SMART parameters from disk drives.
          To compile this driver as a module, choose M here: the
-          module will be called ide.
+          module will be called ide-core.ko.
          For further information, please read <file:Documentation/ide/ide.txt>.
diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c
index 69660a431cd9..77267c859965 100644
--- a/drivers/ide/amd74xx.c
+++ b/drivers/ide/amd74xx.c
@@ -166,7 +166,7 @@ static unsigned int init_chipset_amd74xx(struct pci_dev *dev)
         * Check for broken FIFO support.
         */
        if (dev->vendor == PCI_VENDOR_ID_AMD &&
-            dev->vendor == PCI_DEVICE_ID_AMD_VIPER_7411)
+            dev->device == PCI_DEVICE_ID_AMD_VIPER_7411)
                t &= 0x0f;
        else
                t |= 0xf0;
diff --git a/drivers/ide/atiixp.c b/drivers/ide/atiixp.c
index b2735d28f5cc..ecd1e62ca91a 100644
--- a/drivers/ide/atiixp.c
+++ b/drivers/ide/atiixp.c
@@ -52,7 +52,7 @@ static void atiixp_set_pio_mode(ide_drive_t *drive, const u8 pio)
 {
        struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
        unsigned long flags;
-        int timing_shift = (drive->dn & 2) ? 16 : 0 + (drive->dn & 1) ? 0 : 8;
+        int timing_shift = (drive->dn ^ 1) * 8;
        u32 pio_timing_data;
        u16 pio_mode_data;
@@ -85,7 +85,7 @@ static void atiixp_set_dma_mode(ide_drive_t *drive, const u8 speed)
 {
        struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
        unsigned long flags;
-        int timing_shift = (drive->dn & 2) ? 16 : 0 + (drive->dn & 1) ? 0 : 8;
+        int timing_shift = (drive->dn ^ 1) * 8;
        u32 tmp32;
        u16 tmp16;
        u16 udma_ctl = 0;
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 0bfeb0c79d6e..ddfbea41d296 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -55,7 +55,7 @@
 static DEFINE_MUTEX(idecd_ref_mutex);
-static void ide_cd_release(struct kref *);
+static void ide_cd_release(struct device *);
 static struct cdrom_info *ide_cd_get(struct gendisk *disk)
 {
@@ -67,7 +67,7 @@ static struct cdrom_info *ide_cd_get(struct gendisk *disk)
                if (ide_device_get(cd->drive))
                        cd = NULL;
                else
-                        kref_get(&cd->kref);
+                        get_device(&cd->dev);
        }
        mutex_unlock(&idecd_ref_mutex);
@@ -79,7 +79,7 @@ static void ide_cd_put(struct cdrom_info *cd)
        ide_drive_t *drive = cd->drive;
        mutex_lock(&idecd_ref_mutex);
-        kref_put(&cd->kref, ide_cd_release);
+        put_device(&cd->dev);
        ide_device_put(drive);
        mutex_unlock(&idecd_ref_mutex);
 }
@@ -194,6 +194,14 @@ static void cdrom_analyze_sense_data(ide_drive_t *drive,
                        bio_sectors = max(bio_sectors(failed_command->bio), 4U);
                        sector &= ~(bio_sectors - 1);
+                        /*
+                         * The SCSI specification allows for the value
+                         * returned by READ CAPACITY to be up to 75 2K
+                         * sectors past the last readable block.
+                         * Therefore, if we hit a medium error within the
+                         * last 75 2K sectors, we decrease the saved size
+                         * value.
+                         */
                        if (sector < get_capacity(info->disk) &&
                            drive->probed_capacity - sector < 4 * 75)
                                set_capacity(info->disk, sector);
@@ -1790,15 +1798,17 @@ static void ide_cd_remove(ide_drive_t *drive)
        ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
        ide_proc_unregister_driver(drive, info->driver);
+        device_del(&info->dev);
        del_gendisk(info->disk);
-        ide_cd_put(info);
+        mutex_lock(&idecd_ref_mutex);
+        put_device(&info->dev);
+        mutex_unlock(&idecd_ref_mutex);
 }
-static void ide_cd_release(struct kref *kref)
+static void ide_cd_release(struct device *dev)
 {
-        struct cdrom_info *info = to_ide_drv(kref, cdrom_info);
+        struct cdrom_info *info = to_ide_drv(dev, cdrom_info);
        struct cdrom_device_info *devinfo = &info->devinfo;
        ide_drive_t *drive = info->drive;
        struct gendisk *g = info->disk;
@@ -1997,7 +2007,12 @@ static int ide_cd_probe(ide_drive_t *drive)
        ide_init_disk(g, drive);
-        kref_init(&info->kref);
+        info->dev.parent = &drive->gendev;
+        info->dev.release = ide_cd_release;
+        dev_set_name(&info->dev, dev_name(&drive->gendev));
+        if (device_register(&info->dev))
+                goto out_free_disk;
        info->drive = drive;
        info->driver = &ide_cdrom_driver;
@@ -2011,7 +2026,7 @@ static int ide_cd_probe(ide_drive_t *drive)
        g->driverfs_dev = &drive->gendev;
        g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
        if (ide_cdrom_setup(drive)) {
-                ide_cd_release(&info->kref);
+                put_device(&info->dev);
                goto failed;
        }
@@ -2021,6 +2036,8 @@ static int ide_cd_probe(ide_drive_t *drive)
        add_disk(g);
        return 0;
+out_free_disk:
+        put_disk(g);
 out_free_cd:
        kfree(info);
 failed:
diff --git a/drivers/ide/ide-cd.h b/drivers/ide/ide-cd.h
index ac40d6cb90a2..c878bfcf1116 100644
--- a/drivers/ide/ide-cd.h
+++ b/drivers/ide/ide-cd.h
@@ -80,7 +80,7 @@ struct cdrom_info {
        ide_drive_t             *drive;
        struct ide_driver       *driver;
        struct gendisk          *disk;
-        struct kref             kref;
+        struct device           dev;
        /* Buffer for table of contents.  NULL if we haven't allocated
           a TOC buffer for this device yet. */
diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c
index 7857b209c6df..047109419902 100644
--- a/drivers/ide/ide-gd.c
+++ b/drivers/ide/ide-gd.c
@@ -25,7 +25,7 @@ module_param(debug_mask, ulong, 0644);
 static DEFINE_MUTEX(ide_disk_ref_mutex);
-static void ide_disk_release(struct kref *);
+static void ide_disk_release(struct device *);
 static struct ide_disk_obj *ide_disk_get(struct gendisk *disk)
 {
@@ -37,7 +37,7 @@ static struct ide_disk_obj *ide_disk_get(struct gendisk *disk)
                if (ide_device_get(idkp->drive))
                        idkp = NULL;
                else
-                        kref_get(&idkp->kref);
+                        get_device(&idkp->dev);
        }
        mutex_unlock(&ide_disk_ref_mutex);
        return idkp;
@@ -48,7 +48,7 @@ static void ide_disk_put(struct ide_disk_obj *idkp)
        ide_drive_t *drive = idkp->drive;
        mutex_lock(&ide_disk_ref_mutex);
-        kref_put(&idkp->kref, ide_disk_release);
+        put_device(&idkp->dev);
        ide_device_put(drive);
        mutex_unlock(&ide_disk_ref_mutex);
 }
@@ -66,17 +66,18 @@ static void ide_gd_remove(ide_drive_t *drive)
        struct gendisk *g = idkp->disk;
        ide_proc_unregister_driver(drive, idkp->driver);
+        device_del(&idkp->dev);
        del_gendisk(g);
        drive->disk_ops->flush(drive);
-        ide_disk_put(idkp);
+        mutex_lock(&ide_disk_ref_mutex);
+        put_device(&idkp->dev);
+        mutex_unlock(&ide_disk_ref_mutex);
 }
-static void ide_disk_release(struct kref *kref)
+static void ide_disk_release(struct device *dev)
 {
-        struct ide_disk_obj *idkp = to_ide_drv(kref, ide_disk_obj);
+        struct ide_disk_obj *idkp = to_ide_drv(dev, ide_disk_obj);
        ide_drive_t *drive = idkp->drive;
        struct gendisk *g = idkp->disk;
@@ -348,7 +349,12 @@ static int ide_gd_probe(ide_drive_t *drive)
        ide_init_disk(g, drive);
-        kref_init(&idkp->kref);
+        idkp->dev.parent = &drive->gendev;
+        idkp->dev.release = ide_disk_release;
+        dev_set_name(&idkp->dev, dev_name(&drive->gendev));
+        if (device_register(&idkp->dev))
+                goto out_free_disk;
        idkp->drive = drive;
        idkp->driver = &ide_gd_driver;
@@ -373,6 +379,8 @@ static int ide_gd_probe(ide_drive_t *drive)
        add_disk(g);
        return 0;
+out_free_disk:
+        put_disk(g);
 out_free_idkp:
        kfree(idkp);
 failed:
diff --git a/drivers/ide/ide-gd.h b/drivers/ide/ide-gd.h
index a86779f0756b..b604bdd318a1 100644
--- a/drivers/ide/ide-gd.h
+++ b/drivers/ide/ide-gd.h
@@ -17,7 +17,7 @@ struct ide_disk_obj {
        ide_drive_t             *drive;
        struct ide_driver       *driver;
        struct gendisk          *disk;
-        struct kref             kref;
+        struct device           dev;
        unsigned int            openers;        /* protected by BKL for now */
        /* Last failed packet command */
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index d7ecd3c79757..bb450a7608c2 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -169,7 +169,7 @@ typedef struct ide_tape_obj {
        ide_drive_t             *drive;
        struct ide_driver       *driver;
        struct gendisk          *disk;
-        struct kref             kref;
+        struct device           dev;
        /*
         *      failed_pc points to the last failed packet command, or contains
@@ -267,7 +267,7 @@ static DEFINE_MUTEX(idetape_ref_mutex);
 static struct class *idetape_sysfs_class;
-static void ide_tape_release(struct kref *);
+static void ide_tape_release(struct device *);
 static struct ide_tape_obj *ide_tape_get(struct gendisk *disk)
 {
@@ -279,7 +279,7 @@ static struct ide_tape_obj *ide_tape_get(struct gendisk *disk)
                if (ide_device_get(tape->drive))
                        tape = NULL;
                else
-                        kref_get(&tape->kref);
+                        get_device(&tape->dev);
        }
        mutex_unlock(&idetape_ref_mutex);
        return tape;
@@ -290,7 +290,7 @@ static void ide_tape_put(struct ide_tape_obj *tape)
        ide_drive_t *drive = tape->drive;
        mutex_lock(&idetape_ref_mutex);
-        kref_put(&tape->kref, ide_tape_release);
+        put_device(&tape->dev);
        ide_device_put(drive);
        mutex_unlock(&idetape_ref_mutex);
 }
@@ -308,7 +308,7 @@ static struct ide_tape_obj *ide_tape_chrdev_get(unsigned int i)
        mutex_lock(&idetape_ref_mutex);
        tape = idetape_devs[i];
        if (tape)
-                kref_get(&tape->kref);
+                get_device(&tape->dev);
        mutex_unlock(&idetape_ref_mutex);
        return tape;
 }
@@ -2256,15 +2256,17 @@ static void ide_tape_remove(ide_drive_t *drive)
        idetape_tape_t *tape = drive->driver_data;
        ide_proc_unregister_driver(drive, tape->driver);
+        device_del(&tape->dev);
        ide_unregister_region(tape->disk);
-        ide_tape_put(tape);
+        mutex_lock(&idetape_ref_mutex);
+        put_device(&tape->dev);
+        mutex_unlock(&idetape_ref_mutex);
 }
-static void ide_tape_release(struct kref *kref)
+static void ide_tape_release(struct device *dev)
 {
-        struct ide_tape_obj *tape = to_ide_drv(kref, ide_tape_obj);
+        struct ide_tape_obj *tape = to_ide_drv(dev, ide_tape_obj);
        ide_drive_t *drive = tape->drive;
        struct gendisk *g = tape->disk;
@@ -2407,7 +2409,12 @@ static int ide_tape_probe(ide_drive_t *drive)
        ide_init_disk(g, drive);
-        kref_init(&tape->kref);
+        tape->dev.parent = &drive->gendev;
+        tape->dev.release = ide_tape_release;
+        dev_set_name(&tape->dev, dev_name(&drive->gendev));
+        if (device_register(&tape->dev))
+                goto out_free_disk;
        tape->drive = drive;
        tape->driver = &idetape_driver;
@@ -2436,6 +2443,8 @@ static int ide_tape_probe(ide_drive_t *drive)
        return 0;
+out_free_disk:
+        put_disk(g);
 out_free_tape:
        kfree(tape);
 failed:
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 258805da15c3..0920e3b0c962 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -337,6 +337,7 @@ static int ide_set_dev_param_mask(const char *s, struct kernel_param *kp)
        int a, b, i, j = 1;
        unsigned int *dev_param_mask = (unsigned int *)kp->arg;
+        /* controller . device (0 or 1) [ : 1 (set) | 0 (clear) ] */
        if (sscanf(s, "%d.%d:%d", &a, &b, &j) != 3 &&
            sscanf(s, "%d.%d", &a, &b) != 2)
                return -EINVAL;
@@ -349,7 +350,7 @@ static int ide_set_dev_param_mask(const char *s, struct kernel_param *kp)
        if (j)
                *dev_param_mask |= (1 << i);
        else
-                *dev_param_mask &= (1 << i);
+                *dev_param_mask &= ~(1 << i);
        return 0;
 }
@@ -392,6 +393,8 @@ static int ide_set_disk_chs(const char *str, struct kernel_param *kp)
 {
        int a, b, c = 0, h = 0, s = 0, i, j = 1;
+        /* controller . device (0 or 1) : Cylinders , Heads , Sectors */
+        /* controller . device (0 or 1) : 1 (use CHS) | 0 (ignore CHS) */
        if (sscanf(str, "%d.%d:%d,%d,%d", &a, &b, &c, &h, &s) != 5 &&
            sscanf(str, "%d.%d:%d", &a, &b, &j) != 3)
                return -EINVAL;
@@ -407,7 +410,7 @@ static int ide_set_disk_chs(const char *str, struct kernel_param *kp)
        if (j)
                ide_disks |= (1 << i);
        else
-                ide_disks &= (1 << i);
+                ide_disks &= ~(1 << i);
        ide_disks_chs[i].cyl  = c;
        ide_disks_chs[i].head = h;
@@ -469,6 +472,8 @@ static int ide_set_ignore_cable(const char *s, struct kernel_param *kp)
 {
        int i, j = 1;
+        /* controller (ignore) */
+        /* controller : 1 (ignore) | 0 (use) */
        if (sscanf(s, "%d:%d", &i, &j) != 2 && sscanf(s, "%d", &i) != 1)
                return -EINVAL;
@@ -478,7 +483,7 @@ static int ide_set_ignore_cable(const char *s, struct kernel_param *kp)
        if (j)
                ide_ignore_cable |= (1 << i);
        else
-                ide_ignore_cable &= (1 << i);
+                ide_ignore_cable &= ~(1 << i);
        return 0;
 }
diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c
index e1c4f5437396..13b8153112ed 100644
--- a/drivers/ide/it821x.c
+++ b/drivers/ide/it821x.c
@@ -5,9 +5,8 @@
 *  May be copied or modified under the terms of the GNU General Public License
 *  Based in part on the ITE vendor provided SCSI driver.
 *
- *  Documentation available from
+ *  Documentation:
- *      http://www.ite.com.tw/pc/IT8212F_V04.pdf
+ *      Datasheet is freely available, some other documents under NDA.
- *  Some other documents are NDA.
 *
 *  The ITE8212 isn't exactly a standard IDE controller. It has two
 *  modes. In pass through mode then it is an IDE controller. In its smart
diff --git a/drivers/ieee1394/ieee1394_core.c b/drivers/ieee1394/ieee1394_core.c
index 1028e725a27e..872338003721 100644
--- a/drivers/ieee1394/ieee1394_core.c
+++ b/drivers/ieee1394/ieee1394_core.c
@@ -1275,7 +1275,7 @@ static void __exit ieee1394_cleanup(void)
        unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
 }
-module_init(ieee1394_init);
+fs_initcall(ieee1394_init);
 module_exit(ieee1394_cleanup);
 /* Exported symbols */
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 01e3cffd03b8..e2466425d9ca 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1237,8 +1237,9 @@ static void end_sync_write(struct bio *bio, int error)
        update_head_pos(mirror, r1_bio);
        if (atomic_dec_and_test(&r1_bio->remaining)) {
-                md_done_sync(mddev, r1_bio->sectors, uptodate);
+                sector_t s = r1_bio->sectors;
                put_buf(r1_bio);
+                md_done_sync(mddev, s, uptodate);
        }
 }
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 6736d6dff981..7301631abe04 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1236,6 +1236,7 @@ static void end_sync_read(struct bio *bio, int error)
        /* for reconstruct, we always reschedule after a read.
         * for resync, only after all reads
         */
+        rdev_dec_pending(conf->mirrors[d].rdev, conf->mddev);
        if (test_bit(R10BIO_IsRecover, &r10_bio->state) ||
            atomic_dec_and_test(&r10_bio->remaining)) {
                /* we have read all the blocks,
@@ -1243,7 +1244,6 @@ static void end_sync_read(struct bio *bio, int error)
                 */
                reschedule_retry(r10_bio);
        }
-        rdev_dec_pending(conf->mirrors[d].rdev, conf->mddev);
 }
 static void end_sync_write(struct bio *bio, int error)
@@ -1264,11 +1264,13 @@ static void end_sync_write(struct bio *bio, int error)
        update_head_pos(i, r10_bio);
+        rdev_dec_pending(conf->mirrors[d].rdev, mddev);
        while (atomic_dec_and_test(&r10_bio->remaining)) {
                if (r10_bio->master_bio == NULL) {
                        /* the primary of several recovery bios */
-                        md_done_sync(mddev, r10_bio->sectors, 1);
+                        sector_t s = r10_bio->sectors;
                        put_buf(r10_bio);
+                        md_done_sync(mddev, s, 1);
                        break;
                } else {
                        r10bio_t *r10_bio2 = (r10bio_t *)r10_bio->master_bio;
@@ -1276,7 +1278,6 @@ static void end_sync_write(struct bio *bio, int error)
                        r10_bio = r10_bio2;
                }
        }
-        rdev_dec_pending(conf->mirrors[d].rdev, mddev);
 }
 /*
@@ -1749,8 +1750,6 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
        if (!go_faster && conf->nr_waiting)
                msleep_interruptible(1000);
-        bitmap_cond_end_sync(mddev->bitmap, sector_nr);
        /* Again, very different code for resync and recovery.
         * Both must result in an r10bio with a list of bios that
         * have bi_end_io, bi_sector, bi_bdev set,
@@ -1886,6 +1885,8 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
                /* resync. Schedule a read for every block at this virt offset */
                int count = 0;
+                bitmap_cond_end_sync(mddev->bitmap, sector_nr);
                if (!bitmap_start_sync(mddev->bitmap, sector_nr,
                                       &sync_blocks, mddev->degraded) &&
                    !conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
@@ -2010,13 +2011,13 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
        /* There is nowhere to write, so all non-sync
         * drives must be failed, so try the next chunk...
         */
-        {
+        if (sector_nr + max_sync < max_sector)
-        sector_t sec = max_sector - sector_nr;
+                max_sector = sector_nr + max_sync;
-        sectors_skipped += sec;
+        sectors_skipped += (max_sector - sector_nr);
        chunks_skipped ++;
        sector_nr = max_sector;
        goto skipped;
-        }
 }
 static int run(mddev_t *mddev)
diff --git a/drivers/media/dvb/b2c2/flexcop-hw-filter.c b/drivers/media/dvb/b2c2/flexcop-hw-filter.c
index b386cc66c6b3..451974ba32f3 100644
--- a/drivers/media/dvb/b2c2/flexcop-hw-filter.c
+++ b/drivers/media/dvb/b2c2/flexcop-hw-filter.c
@@ -192,6 +192,7 @@ int flexcop_pid_feed_control(struct flexcop_device *fc, struct dvb_demux_feed *d
        return 0;
 }
+EXPORT_SYMBOL(flexcop_pid_feed_control);
 void flexcop_hw_filter_init(struct flexcop_device *fc)
 {
diff --git a/drivers/media/dvb/b2c2/flexcop-pci.c b/drivers/media/dvb/b2c2/flexcop-pci.c
index 5b30dfc7846b..76e37fd96bb6 100644
--- a/drivers/media/dvb/b2c2/flexcop-pci.c
+++ b/drivers/media/dvb/b2c2/flexcop-pci.c
@@ -13,9 +13,9 @@ static int enable_pid_filtering = 1;
 module_param(enable_pid_filtering, int, 0444);
 MODULE_PARM_DESC(enable_pid_filtering, "enable hardware pid filtering: supported values: 0 (fullts), 1");
-static int irq_chk_intv;
+static int irq_chk_intv = 100;
 module_param(irq_chk_intv, int, 0644);
-MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ watchdog (currently just debugging).");
+MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ streaming watchdog.");
 #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
 #define dprintk(level,args...) \
@@ -34,7 +34,9 @@ MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ watchdog (currently jus
 static int debug;
 module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "set debug level (1=info,2=regs,4=TS,8=irqdma (|-able))." DEBSTATUS);
+MODULE_PARM_DESC(debug,
+        "set debug level (1=info,2=regs,4=TS,8=irqdma,16=check (|-able))."
+         DEBSTATUS);
 #define DRIVER_VERSION "0.1"
 #define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV PCI Driver"
@@ -58,6 +60,8 @@ struct flexcop_pci {
        int active_dma1_addr; /* 0 = addr0 of dma1; 1 = addr1 of dma1 */
        u32 last_dma1_cur_pos; /* position of the pointer last time the timer/packet irq occured */
        int count;
+        int count_prev;
+        int stream_problem;
        spinlock_t irq_lock;
@@ -103,18 +107,32 @@ static void flexcop_pci_irq_check_work(struct work_struct *work)
                container_of(work, struct flexcop_pci, irq_check_work.work);
        struct flexcop_device *fc = fc_pci->fc_dev;
-        flexcop_ibi_value v = fc->read_ibi_reg(fc,sram_dest_reg_714);
+        if (fc->feedcount) {
-        flexcop_dump_reg(fc_pci->fc_dev,dma1_000,4);
+                if (fc_pci->count == fc_pci->count_prev) {
+                        deb_chk("no IRQ since the last check\n");
-        if (v.sram_dest_reg_714.net_ovflow_error)
+                        if (fc_pci->stream_problem++ == 3) {
-                deb_chk("sram net_ovflow_error\n");
+                                struct dvb_demux_feed *feed;
-        if (v.sram_dest_reg_714.media_ovflow_error)
-                deb_chk("sram media_ovflow_error\n");
+                                spin_lock_irq(&fc->demux.lock);
-        if (v.sram_dest_reg_714.cai_ovflow_error)
+                                list_for_each_entry(feed, &fc->demux.feed_list,
-                deb_chk("sram cai_ovflow_error\n");
+                                        list_head) {
-        if (v.sram_dest_reg_714.cai_ovflow_error)
+                                        flexcop_pid_feed_control(fc, feed, 0);
-                deb_chk("sram cai_ovflow_error\n");
+                                }
+                                list_for_each_entry(feed, &fc->demux.feed_list,
+                                        list_head) {
+                                        flexcop_pid_feed_control(fc, feed, 1);
+                                }
+                                spin_unlock_irq(&fc->demux.lock);
+                                fc_pci->stream_problem = 0;
+                        }
+                } else {
+                        fc_pci->stream_problem = 0;
+                        fc_pci->count_prev = fc_pci->count;
+                }
+        }
        schedule_delayed_work(&fc_pci->irq_check_work,
                        msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
@@ -216,16 +234,12 @@ static int flexcop_pci_stream_control(struct flexcop_device *fc, int onoff)
                flexcop_dma_control_timer_irq(fc,FC_DMA_1,1);
                deb_irq("IRQ enabled\n");
+                fc_pci->count_prev = fc_pci->count;
 //              fc_pci->active_dma1_addr = 0;
 //              flexcop_dma_control_size_irq(fc,FC_DMA_1,1);
-                if (irq_chk_intv > 0)
-                        schedule_delayed_work(&fc_pci->irq_check_work,
-                                        msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
        } else {
-                if (irq_chk_intv > 0)
-                        cancel_delayed_work(&fc_pci->irq_check_work);
                flexcop_dma_control_timer_irq(fc,FC_DMA_1,0);
                deb_irq("IRQ disabled\n");
@@ -299,8 +313,6 @@ static int flexcop_pci_init(struct flexcop_pci *fc_pci)
                                        IRQF_SHARED, DRIVER_NAME, fc_pci)) != 0)
                goto err_pci_iounmap;
        fc_pci->init_state |= FC_PCI_INIT;
        return ret;
@@ -375,6 +387,10 @@ static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
        INIT_DELAYED_WORK(&fc_pci->irq_check_work, flexcop_pci_irq_check_work);
+                if (irq_chk_intv > 0)
+                        schedule_delayed_work(&fc_pci->irq_check_work,
+                msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
        return ret;
 err_fc_exit:
@@ -393,6 +409,9 @@ static void flexcop_pci_remove(struct pci_dev *pdev)
 {
        struct flexcop_pci *fc_pci = pci_get_drvdata(pdev);
+        if (irq_chk_intv > 0)
+                cancel_delayed_work(&fc_pci->irq_check_work);
        flexcop_pci_dma_exit(fc_pci);
        flexcop_device_exit(fc_pci->fc_dev);
        flexcop_pci_exit(fc_pci);
diff --git a/drivers/media/dvb/b2c2/flexcop.c b/drivers/media/dvb/b2c2/flexcop.c
index 676413a915b4..91068952b502 100644
--- a/drivers/media/dvb/b2c2/flexcop.c
+++ b/drivers/media/dvb/b2c2/flexcop.c
@@ -212,8 +212,7 @@ void flexcop_reset_block_300(struct flexcop_device *fc)
        v210.sw_reset_210.Block_reset_enable = 0xb2;
        fc->write_ibi_reg(fc,sw_reset_210,v210);
-        msleep(1);
+        udelay(1000);
        fc->write_ibi_reg(fc,ctrl_208,v208_save);
 }
diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c
index 5d882a44e3ee..2ac738fa6a07 100644
--- a/drivers/media/video/em28xx/em28xx-audio.c
+++ b/drivers/media/video/em28xx/em28xx-audio.c
@@ -463,6 +463,8 @@ static int em28xx_audio_init(struct em28xx *dev)
        pcm->info_flags = 0;
        pcm->private_data = dev;
        strcpy(pcm->name, "Empia 28xx Capture");
+        snd_card_set_dev(card, &dev->udev->dev);
        strcpy(card->driver, "Empia Em28xx Audio");
        strcpy(card->shortname, "Em28xx Audio");
        strcpy(card->longname, "Empia Em28xx Audio");
diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c
index a1d6008efcbb..07c334f25aae 100644
--- a/drivers/media/video/pxa_camera.c
+++ b/drivers/media/video/pxa_camera.c
@@ -1155,23 +1155,23 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd,
 {
        struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
        struct pxa_camera_dev *pcdev = ici->priv;
-        const struct soc_camera_data_format *host_fmt, *cam_fmt = NULL;
+        const struct soc_camera_data_format *cam_fmt = NULL;
-        const struct soc_camera_format_xlate *xlate;
+        const struct soc_camera_format_xlate *xlate = NULL;
        struct soc_camera_sense sense = {
                .master_clock = pcdev->mclk,
                .pixel_clock_max = pcdev->ciclk / 4,
        };
-        int ret, buswidth;
+        int ret;
-        xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
+        if (pixfmt) {
-        if (!xlate) {
+                xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
-                dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
+                if (!xlate) {
-                return -EINVAL;
+                        dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
-        }
+                        return -EINVAL;
+                }
-        buswidth = xlate->buswidth;
+                cam_fmt = xlate->cam_fmt;
-        host_fmt = xlate->host_fmt;
+        }
-        cam_fmt = xlate->cam_fmt;
        /* If PCLK is used to latch data from the sensor, check sense */
        if (pcdev->platform_flags & PXA_CAMERA_PCLK_EN)
@@ -1201,8 +1201,8 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd,
        }
        if (pixfmt && !ret) {
-                icd->buswidth = buswidth;
+                icd->buswidth = xlate->buswidth;
-                icd->current_fmt = host_fmt;
+                icd->current_fmt = xlate->host_fmt;
        }
        return ret;
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index 9a2586b07a05..ddcb81d0b81a 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -603,21 +603,18 @@ static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd,
        const struct soc_camera_format_xlate *xlate;
        int ret;
+        if (!pixfmt)
+                return icd->ops->set_fmt(icd, pixfmt, rect);
        xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
        if (!xlate) {
                dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
                return -EINVAL;
        }
-        switch (pixfmt) {
+        ret = icd->ops->set_fmt(icd, xlate->cam_fmt->fourcc, rect);
-        case 0:                         /* Only geometry change */
-                ret = icd->ops->set_fmt(icd, pixfmt, rect);
-                break;
-        default:
-                ret = icd->ops->set_fmt(icd, xlate->cam_fmt->fourcc, rect);
-        }
-        if (pixfmt && !ret) {
+        if (!ret) {
                icd->buswidth = xlate->buswidth;
                icd->current_fmt = xlate->host_fmt;
                pcdev->camera_fmt = xlate->cam_fmt;
diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c
index f26667a7abf7..cf991850f01b 100644
--- a/drivers/misc/hpilo.c
+++ b/drivers/misc/hpilo.c
@@ -710,6 +710,7 @@ out:
 static struct pci_device_id ilo_devices[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_COMPAQ, 0xB204) },
+        { PCI_DEVICE(PCI_VENDOR_ID_HP, 0x3307) },
        { }
 };
 MODULE_DEVICE_TABLE(pci, ilo_devices);
@@ -758,7 +759,7 @@ static void __exit ilo_exit(void)
        class_destroy(ilo_class);
 }
-MODULE_VERSION("0.06");
+MODULE_VERSION("1.0");
 MODULE_ALIAS(ILO_NAME);
 MODULE_DESCRIPTION(ILO_NAME);
 MODULE_AUTHOR("David Altobelli <david.altobelli@hp.com>");
diff --git a/drivers/mtd/chips/map_rom.c b/drivers/mtd/chips/map_rom.c
index 821d0ed6bae3..c76d6e5f47ee 100644
--- a/drivers/mtd/chips/map_rom.c
+++ b/drivers/mtd/chips/map_rom.c
@@ -19,6 +19,7 @@ static int maprom_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
 static int maprom_write (struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
 static void maprom_nop (struct mtd_info *);
 static struct mtd_info *map_rom_probe(struct map_info *map);
+static int maprom_erase (struct mtd_info *mtd, struct erase_info *info);
 static struct mtd_chip_driver maprom_chipdrv = {
        .probe  = map_rom_probe,
@@ -42,6 +43,7 @@ static struct mtd_info *map_rom_probe(struct map_info *map)
        mtd->read = maprom_read;
        mtd->write = maprom_write;
        mtd->sync = maprom_nop;
+        mtd->erase = maprom_erase;
        mtd->flags = MTD_CAP_ROM;
        mtd->erasesize = map->size;
        mtd->writesize = 1;
@@ -71,6 +73,12 @@ static int maprom_write (struct mtd_info *mtd, loff_t to, size_t len, size_t *re
        return -EIO;
 }
+static int maprom_erase (struct mtd_info *mtd, struct erase_info *info)
+{
+        /* We do our best 8) */
+        return -EROFS;
+}
 static int __init map_rom_init(void)
 {
        register_mtd_chip_driver(&maprom_chipdrv);
diff --git a/drivers/mtd/devices/slram.c b/drivers/mtd/devices/slram.c
index a425d09f35a0..00248e81ecd5 100644
--- a/drivers/mtd/devices/slram.c
+++ b/drivers/mtd/devices/slram.c
@@ -267,22 +267,28 @@ static int parse_cmdline(char *devname, char *szstart, char *szlength)
        if (*(szlength) != '+') {
                devlength = simple_strtoul(szlength, &buffer, 0);
                devlength = handle_unit(devlength, buffer) - devstart;
+                if (devlength < devstart)
+                        goto err_out;
+                devlength -= devstart;
        } else {
                devlength = simple_strtoul(szlength + 1, &buffer, 0);
                devlength = handle_unit(devlength, buffer);
        }
        T("slram: devname=%s, devstart=0x%lx, devlength=0x%lx\n",
                        devname, devstart, devlength);
-        if ((devstart < 0) || (devlength < 0) || (devlength % SLRAM_BLK_SZ != 0)) {
+        if (devlength % SLRAM_BLK_SZ != 0)
-                E("slram: Illegal start / length parameter.\n");
+                goto err_out;
-                return(-EINVAL);
-        }
        if ((devstart = register_device(devname, devstart, devlength))){
                unregister_devices();
                return((int)devstart);
        }
        return(0);
+err_out:
+        E("slram: Illegal length parameter.\n");
+        return(-EINVAL);
 }
 #ifndef MODULE
diff --git a/drivers/mtd/lpddr/Kconfig b/drivers/mtd/lpddr/Kconfig
index acd4ea9b2278..5a401d8047ab 100644
--- a/drivers/mtd/lpddr/Kconfig
+++ b/drivers/mtd/lpddr/Kconfig
@@ -12,6 +12,7 @@ config MTD_LPDDR
          DDR memories, intended for battery-operated systems.
 config MTD_QINFO_PROBE
+        depends on MTD_LPDDR
        tristate "Detect flash chips by QINFO probe"
        help
            Device Information for LPDDR chips is offered through the Overlay
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 0225cbbf22de..043d50fb6ef6 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -491,7 +491,7 @@ config MTD_PCMCIA_ANONYMOUS
 config MTD_BFIN_ASYNC
        tristate "Blackfin BF533-STAMP Flash Chip Support"
-        depends on BFIN533_STAMP && MTD_CFI
+        depends on BFIN533_STAMP && MTD_CFI && MTD_COMPLEX_MAPPINGS
        select MTD_PARTITIONS
        default y
        help
diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c
index 6fec86aaed7e..576611f605db 100644
--- a/drivers/mtd/maps/bfin-async-flash.c
+++ b/drivers/mtd/maps/bfin-async-flash.c
@@ -152,14 +152,18 @@ static int __devinit bfin_flash_probe(struct platform_device *pdev)
        if (gpio_request(state->enet_flash_pin, DRIVER_NAME)) {
                pr_devinit(KERN_ERR DRIVER_NAME ": Failed to request gpio %d\n", state->enet_flash_pin);
+                kfree(state);
                return -EBUSY;
        }
        gpio_direction_output(state->enet_flash_pin, 1);
        pr_devinit(KERN_NOTICE DRIVER_NAME ": probing %d-bit flash bus\n", state->map.bankwidth * 8);
        state->mtd = do_map_probe(memory->name, &state->map);
-        if (!state->mtd)
+        if (!state->mtd) {
+                gpio_free(state->enet_flash_pin);
+                kfree(state);
                return -ENXIO;
+        }
 #ifdef CONFIG_MTD_PARTITIONS
        ret = parse_mtd_partitions(state->mtd, part_probe_types, &pdata->parts, 0);
diff --git a/drivers/mtd/maps/ck804xrom.c b/drivers/mtd/maps/ck804xrom.c
index 5f7a245ed132..424f17d6ffd1 100644
--- a/drivers/mtd/maps/ck804xrom.c
+++ b/drivers/mtd/maps/ck804xrom.c
@@ -342,9 +342,9 @@ static struct pci_device_id ck804xrom_pci_tbl[] = {
        { 0, }
 };
+#if 0
 MODULE_DEVICE_TABLE(pci, ck804xrom_pci_tbl);
-#if 0
 static struct pci_driver ck804xrom_driver = {
        .name =         MOD_NAME,
        .id_table =     ck804xrom_pci_tbl,
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index 87743661d48e..4b122e7ab4b3 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -29,6 +29,7 @@ struct physmap_flash_info {
        struct map_info         map[MAX_RESOURCES];
 #ifdef CONFIG_MTD_PARTITIONS
        int                     nr_parts;
+        struct mtd_partition    *parts;
 #endif
 };
@@ -45,25 +46,26 @@ static int physmap_flash_remove(struct platform_device *dev)
        physmap_data = dev->dev.platform_data;
-#ifdef CONFIG_MTD_CONCAT
+#ifdef CONFIG_MTD_PARTITIONS
-        if (info->cmtd != info->mtd[0]) {
+        if (info->nr_parts) {
+                del_mtd_partitions(info->cmtd);
+                kfree(info->parts);
+        } else if (physmap_data->nr_parts)
+                del_mtd_partitions(info->cmtd);
+        else
                del_mtd_device(info->cmtd);
+#else
+        del_mtd_device(info->cmtd);
+#endif
+#ifdef CONFIG_MTD_CONCAT
+        if (info->cmtd != info->mtd[0])
                mtd_concat_destroy(info->cmtd);
-        }
 #endif
        for (i = 0; i < MAX_RESOURCES; i++) {
-                if (info->mtd[i] != NULL) {
+                if (info->mtd[i] != NULL)
-#ifdef CONFIG_MTD_PARTITIONS
-                        if (info->nr_parts || physmap_data->nr_parts)
-                                del_mtd_partitions(info->mtd[i]);
-                        else
-                                del_mtd_device(info->mtd[i]);
-#else
-                        del_mtd_device(info->mtd[i]);
-#endif
                        map_destroy(info->mtd[i]);
-                }
        }
        return 0;
 }
@@ -86,9 +88,6 @@ static int physmap_flash_probe(struct platform_device *dev)
        int err = 0;
        int i;
        int devices_found = 0;
-#ifdef CONFIG_MTD_PARTITIONS
-        struct mtd_partition *parts;
-#endif
        physmap_data = dev->dev.platform_data;
        if (physmap_data == NULL)
@@ -167,10 +166,11 @@ static int physmap_flash_probe(struct platform_device *dev)
                goto err_out;
 #ifdef CONFIG_MTD_PARTITIONS
-        err = parse_mtd_partitions(info->cmtd, part_probe_types, &parts, 0);
+        err = parse_mtd_partitions(info->cmtd, part_probe_types,
+                                &info->parts, 0);
        if (err > 0) {
-                add_mtd_partitions(info->cmtd, parts, err);
+                add_mtd_partitions(info->cmtd, info->parts, err);
-                kfree(parts);
+                info->nr_parts = err;
                return 0;
        }
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index b0ee86c62685..ab13ff22a8c0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -148,7 +148,7 @@ static void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
                pci_unmap_single(dev,
                                pci_unmap_addr(&txq->cmd[index]->meta, mapping),
                                pci_unmap_len(&txq->cmd[index]->meta, len),
-                                PCI_DMA_TODEVICE);
+                                PCI_DMA_BIDIRECTIONAL);
        /* Unmap chunks, if any. */
        for (i = 1; i < num_tbs; i++) {
@@ -964,7 +964,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
         * within command buffer array. */
        txcmd_phys = pci_map_single(priv->pci_dev,
                                    out_cmd, sizeof(struct iwl_cmd),
-                                    PCI_DMA_TODEVICE);
+                                    PCI_DMA_BIDIRECTIONAL);
        pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys);
        pci_unmap_len_set(&out_cmd->meta, len, sizeof(struct iwl_cmd));
        /* Add buffer containing Tx command and MAC(!) header to TFD's
@@ -1115,7 +1115,7 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
                        IWL_MAX_SCAN_SIZE : sizeof(struct iwl_cmd);
        phys_addr = pci_map_single(priv->pci_dev, out_cmd,
-                                   len, PCI_DMA_TODEVICE);
+                                   len, PCI_DMA_BIDIRECTIONAL);
        pci_unmap_addr_set(&out_cmd->meta, mapping, phys_addr);
        pci_unmap_len_set(&out_cmd->meta, len, len);
        phys_addr += offsetof(struct iwl_cmd, hdr);
@@ -1212,7 +1212,7 @@ static void iwl_hcmd_queue_reclaim(struct iwl_priv *priv, int txq_id,
        pci_unmap_single(priv->pci_dev,
                pci_unmap_addr(&txq->cmd[cmd_idx]->meta, mapping),
                pci_unmap_len(&txq->cmd[cmd_idx]->meta, len),
-                PCI_DMA_TODEVICE);
+                PCI_DMA_BIDIRECTIONAL);
        for (idx = iwl_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx;
             q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index f5a662a50acb..26c536b51c5a 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -330,6 +330,14 @@ parse_dmar_table(void)
        entry_header = (struct acpi_dmar_header *)(dmar + 1);
        while (((unsigned long)entry_header) <
                        (((unsigned long)dmar) + dmar_tbl->length)) {
+                /* Avoid looping forever on bad ACPI tables */
+                if (entry_header->length == 0) {
+                        printk(KERN_WARNING PREFIX
+                                "Invalid 0-length structure\n");
+                        ret = -EINVAL;
+                        break;
+                }
                dmar_table_print_dmar_entry(entry_header);
                switch (entry_header->type) {
@@ -491,7 +499,7 @@ int alloc_iommu(struct dmar_drhd_unit *drhd)
        int map_size;
        u32 ver;
        static int iommu_allocated = 0;
-        int agaw;
+        int agaw = 0;
        iommu = kzalloc(sizeof(*iommu), GFP_KERNEL);
        if (!iommu)
@@ -507,6 +515,7 @@ int alloc_iommu(struct dmar_drhd_unit *drhd)
        iommu->cap = dmar_readq(iommu->reg + DMAR_CAP_REG);
        iommu->ecap = dmar_readq(iommu->reg + DMAR_ECAP_REG);
+#ifdef CONFIG_DMAR
        agaw = iommu_calculate_agaw(iommu);
        if (agaw < 0) {
                printk(KERN_ERR
@@ -514,6 +523,7 @@ int alloc_iommu(struct dmar_drhd_unit *drhd)
                        iommu->seq_id);
                goto error;
        }
+#endif
        iommu->agaw = agaw;
        /* the registers might be more than one page */
@@ -571,19 +581,49 @@ static inline void reclaim_free_desc(struct q_inval *qi)
        }
 }
+static int qi_check_fault(struct intel_iommu *iommu, int index)
+{
+        u32 fault;
+        int head;
+        struct q_inval *qi = iommu->qi;
+        int wait_index = (index + 1) % QI_LENGTH;
+        fault = readl(iommu->reg + DMAR_FSTS_REG);
+        /*
+         * If IQE happens, the head points to the descriptor associated
+         * with the error. No new descriptors are fetched until the IQE
+         * is cleared.
+         */
+        if (fault & DMA_FSTS_IQE) {
+                head = readl(iommu->reg + DMAR_IQH_REG);
+                if ((head >> 4) == index) {
+                        memcpy(&qi->desc[index], &qi->desc[wait_index],
+                                        sizeof(struct qi_desc));
+                        __iommu_flush_cache(iommu, &qi->desc[index],
+                                        sizeof(struct qi_desc));
+                        writel(DMA_FSTS_IQE, iommu->reg + DMAR_FSTS_REG);
+                        return -EINVAL;
+                }
+        }
+        return 0;
+}
 /*
 * Submit the queued invalidation descriptor to the remapping
 * hardware unit and wait for its completion.
 */
-void qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu)
+int qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu)
 {
+        int rc = 0;
        struct q_inval *qi = iommu->qi;
        struct qi_desc *hw, wait_desc;
        int wait_index, index;
        unsigned long flags;
        if (!qi)
-                return;
+                return 0;
        hw = qi->desc;
@@ -601,7 +641,8 @@ void qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu)
        hw[index] = *desc;
-        wait_desc.low = QI_IWD_STATUS_DATA(2) | QI_IWD_STATUS_WRITE | QI_IWD_TYPE;
+        wait_desc.low = QI_IWD_STATUS_DATA(QI_DONE) |
+                        QI_IWD_STATUS_WRITE | QI_IWD_TYPE;
        wait_desc.high = virt_to_phys(&qi->desc_status[wait_index]);
        hw[wait_index] = wait_desc;
@@ -612,13 +653,11 @@ void qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu)
        qi->free_head = (qi->free_head + 2) % QI_LENGTH;
        qi->free_cnt -= 2;
-        spin_lock(&iommu->register_lock);
        /*
         * update the HW tail register indicating the presence of
         * new descriptors.
         */
        writel(qi->free_head << 4, iommu->reg + DMAR_IQT_REG);
-        spin_unlock(&iommu->register_lock);
        while (qi->desc_status[wait_index] != QI_DONE) {
                /*
@@ -628,15 +667,21 @@ void qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu)
                 * a deadlock where the interrupt context can wait indefinitely
                 * for free slots in the queue.
                 */
+                rc = qi_check_fault(iommu, index);
+                if (rc)
+                        goto out;
                spin_unlock(&qi->q_lock);
                cpu_relax();
                spin_lock(&qi->q_lock);
        }
+out:
-        qi->desc_status[index] = QI_DONE;
+        qi->desc_status[index] = qi->desc_status[wait_index] = QI_DONE;
        reclaim_free_desc(qi);
        spin_unlock_irqrestore(&qi->q_lock, flags);
+        return rc;
 }
 /*
@@ -649,13 +694,13 @@ void qi_global_iec(struct intel_iommu *iommu)
        desc.low = QI_IEC_TYPE;
        desc.high = 0;
+        /* should never fail */
        qi_submit_sync(&desc, iommu);
 }
 int qi_flush_context(struct intel_iommu *iommu, u16 did, u16 sid, u8 fm,
                     u64 type, int non_present_entry_flush)
 {
        struct qi_desc desc;
        if (non_present_entry_flush) {
@@ -669,10 +714,7 @@ int qi_flush_context(struct intel_iommu *iommu, u16 did, u16 sid, u8 fm,
                        | QI_CC_GRAN(type) | QI_CC_TYPE;
        desc.high = 0;
-        qi_submit_sync(&desc, iommu);
+        return qi_submit_sync(&desc, iommu);
-        return 0;
 }
 int qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr,
@@ -702,10 +744,7 @@ int qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr,
        desc.high = QI_IOTLB_ADDR(addr) | QI_IOTLB_IH(ih)
                | QI_IOTLB_AM(size_order);
-        qi_submit_sync(&desc, iommu);
+        return qi_submit_sync(&desc, iommu);
-        return 0;
 }
 /*
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index db85284ffb62..39ae37589fda 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -111,6 +111,7 @@ struct controller {
        int cmd_busy;
        unsigned int no_cmd_complete:1;
        unsigned int link_active_reporting:1;
+        unsigned int notification_enabled:1;
 };
 #define INT_BUTTON_IGNORE               0
@@ -170,6 +171,7 @@ extern int pciehp_configure_device(struct slot *p_slot);
 extern int pciehp_unconfigure_device(struct slot *p_slot);
 extern void pciehp_queue_pushbutton_work(struct work_struct *work);
 struct controller *pcie_init(struct pcie_device *dev);
+int pcie_init_notification(struct controller *ctrl);
 int pciehp_enable_slot(struct slot *p_slot);
 int pciehp_disable_slot(struct slot *p_slot);
 int pcie_enable_notification(struct controller *ctrl);
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index c2485542f543..681e3912b821 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -434,6 +434,13 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
                goto err_out_release_ctlr;
        }
+        /* Enable events after we have setup the data structures */
+        rc = pcie_init_notification(ctrl);
+        if (rc) {
+                ctrl_err(ctrl, "Notification initialization failed\n");
+                goto err_out_release_ctlr;
+        }
        /* Check if slot is occupied */
        t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset);
        t_slot->hpc_ops->get_adapter_status(t_slot, &value);
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 71a8012886b0..7a16c6897bb9 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -934,7 +934,7 @@ static void pcie_disable_notification(struct controller *ctrl)
                ctrl_warn(ctrl, "Cannot disable software notification\n");
 }
-static int pcie_init_notification(struct controller *ctrl)
+int pcie_init_notification(struct controller *ctrl)
 {
        if (pciehp_request_irq(ctrl))
                return -1;
@@ -942,13 +942,17 @@ static int pcie_init_notification(struct controller *ctrl)
                pciehp_free_irq(ctrl);
                return -1;
        }
+        ctrl->notification_enabled = 1;
        return 0;
 }
 static void pcie_shutdown_notification(struct controller *ctrl)
 {
-        pcie_disable_notification(ctrl);
+        if (ctrl->notification_enabled) {
-        pciehp_free_irq(ctrl);
+                pcie_disable_notification(ctrl);
+                pciehp_free_irq(ctrl);
+                ctrl->notification_enabled = 0;
+        }
 }
 static int pcie_init_slot(struct controller *ctrl)
@@ -1110,13 +1114,8 @@ struct controller *pcie_init(struct pcie_device *dev)
        if (pcie_init_slot(ctrl))
                goto abort_ctrl;
-        if (pcie_init_notification(ctrl))
-                goto abort_slot;
        return ctrl;
-abort_slot:
-        pcie_cleanup_slot(ctrl);
 abort_ctrl:
        kfree(ctrl);
 abort:
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index f78371b22529..45effc5726c0 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -207,7 +207,7 @@ int alloc_irte(struct intel_iommu *iommu, int irq, u16 count)
        return index;
 }
-static void qi_flush_iec(struct intel_iommu *iommu, int index, int mask)
+static int qi_flush_iec(struct intel_iommu *iommu, int index, int mask)
 {
        struct qi_desc desc;
@@ -215,7 +215,7 @@ static void qi_flush_iec(struct intel_iommu *iommu, int index, int mask)
                   | QI_IEC_SELECTIVE;
        desc.high = 0;
-        qi_submit_sync(&desc, iommu);
+        return qi_submit_sync(&desc, iommu);
 }
 int map_irq_to_irte_handle(int irq, u16 *sub_handle)
@@ -283,6 +283,7 @@ int clear_irte_irq(int irq, struct intel_iommu *iommu, u16 index)
 int modify_irte(int irq, struct irte *irte_modified)
 {
+        int rc;
        int index;
        struct irte *irte;
        struct intel_iommu *iommu;
@@ -303,14 +304,15 @@ int modify_irte(int irq, struct irte *irte_modified)
        set_64bit((unsigned long *)irte, irte_modified->low | (1 << 1));
        __iommu_flush_cache(iommu, irte, sizeof(*irte));
-        qi_flush_iec(iommu, index, 0);
+        rc = qi_flush_iec(iommu, index, 0);
        spin_unlock(&irq_2_ir_lock);
-        return 0;
+        return rc;
 }
 int flush_irte(int irq)
 {
+        int rc;
        int index;
        struct intel_iommu *iommu;
        struct irq_2_iommu *irq_iommu;
@@ -326,10 +328,10 @@ int flush_irte(int irq)
        index = irq_iommu->irte_index + irq_iommu->sub_handle;
-        qi_flush_iec(iommu, index, irq_iommu->irte_mask);
+        rc = qi_flush_iec(iommu, index, irq_iommu->irte_mask);
        spin_unlock(&irq_2_ir_lock);
-        return 0;
+        return rc;
 }
 struct intel_iommu *map_ioapic_to_ir(int apic)
@@ -355,6 +357,7 @@ struct intel_iommu *map_dev_to_ir(struct pci_dev *dev)
 int free_irte(int irq)
 {
+        int rc = 0;
        int index, i;
        struct irte *irte;
        struct intel_iommu *iommu;
@@ -375,7 +378,7 @@ int free_irte(int irq)
        if (!irq_iommu->sub_handle) {
                for (i = 0; i < (1 << irq_iommu->irte_mask); i++)
                        set_64bit((unsigned long *)irte, 0);
-                qi_flush_iec(iommu, index, irq_iommu->irte_mask);
+                rc = qi_flush_iec(iommu, index, irq_iommu->irte_mask);
        }
        irq_iommu->iommu = NULL;
@@ -385,7 +388,7 @@ int free_irte(int irq)
        spin_unlock(&irq_2_ir_lock);
-        return 0;
+        return rc;
 }
 static void iommu_set_intr_remapping(struct intel_iommu *iommu, int mode)
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index aac7006949f1..d0c973685868 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -108,6 +108,34 @@ int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
 }
 #endif  /*  0  */
+static void set_device_error_reporting(struct pci_dev *dev, void *data)
+{
+        bool enable = *((bool *)data);
+        if (dev->pcie_type != PCIE_RC_PORT &&
+            dev->pcie_type != PCIE_SW_UPSTREAM_PORT &&
+            dev->pcie_type != PCIE_SW_DOWNSTREAM_PORT)
+                return;
+        if (enable)
+                pci_enable_pcie_error_reporting(dev);
+        else
+                pci_disable_pcie_error_reporting(dev);
+}
+/**
+ * set_downstream_devices_error_reporting - enable/disable the error reporting  bits on the root port and its downstream ports.
+ * @dev: pointer to root port's pci_dev data structure
+ * @enable: true = enable error reporting, false = disable error reporting.
+ */
+static void set_downstream_devices_error_reporting(struct pci_dev *dev,
+                                                   bool enable)
+{
+        set_device_error_reporting(dev, &enable);
+        pci_walk_bus(dev->subordinate, set_device_error_reporting, &enable);
+}
 static int find_device_iter(struct device *device, void *data)
 {
        struct pci_dev *dev;
@@ -525,15 +553,11 @@ void aer_enable_rootport(struct aer_rpc *rpc)
        pci_read_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, &reg32);
        pci_write_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, reg32);
-        /* Enable Root Port device reporting error itself */
+        /*
-        pci_read_config_word(pdev, pos+PCI_EXP_DEVCTL, &reg16);
+         * Enable error reporting for the root port device and downstream port
-        reg16 = reg16 |
+         * devices.
-                PCI_EXP_DEVCTL_CERE |
+         */
-                PCI_EXP_DEVCTL_NFERE |
+        set_downstream_devices_error_reporting(pdev, true);
-                PCI_EXP_DEVCTL_FERE |
-                PCI_EXP_DEVCTL_URRE;
-        pci_write_config_word(pdev, pos+PCI_EXP_DEVCTL,
-                reg16);
        /* Enable Root Port's interrupt in response to error messages */
        pci_write_config_dword(pdev,
@@ -553,6 +577,12 @@ static void disable_root_aer(struct aer_rpc *rpc)
        u32 reg32;
        int pos;
+        /*
+         * Disable error reporting for the root port device and downstream port
+         * devices.
+         */
+        set_downstream_devices_error_reporting(pdev, false);
        pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
        /* Disable Root's interrupt in response to error messages */
        pci_write_config_dword(pdev, pos + PCI_ERR_ROOT_COMMAND, 0);
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index f9b874eaeb9f..248b4db91552 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -97,8 +97,6 @@ static int __devinit pcie_portdrv_probe (struct pci_dev *dev,
        pcie_portdrv_save_config(dev);
-        pci_enable_pcie_error_reporting(dev);
        return 0;
 }
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index baad093aafe3..f20d55368edb 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1584,6 +1584,7 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS,   PCI_DEVICE_ID_SERVERWORKS_
 */
 #define AMD_813X_MISC                   0x40
 #define AMD_813X_NOIOAMODE              (1<<0)
+#define AMD_813X_REV_B2                 0x13
 static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
 {
@@ -1591,6 +1592,8 @@ static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
        if (noioapicquirk)
                return;
+        if (dev->revision == AMD_813X_REV_B2)
+                return;
        pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
        pci_config_dword &= ~AMD_813X_NOIOAMODE;
@@ -1981,7 +1984,6 @@ static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
                        quirk_msi_ht_cap);
 /* The nVidia CK804 chipset may have 2 HT MSI mappings.
 * MSI are supported if the MSI capability set in any of these mappings.
 */
@@ -2032,6 +2034,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
                         PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
                         ht_enable_msi_mapping);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
+                         ht_enable_msi_mapping);
 /* The P5N32-SLI Premium motherboard from Asus has a problem with msi
 * for the MCP55 NIC. It is not yet determined whether the msi problem
 * also affects other devices. As for now, turn off msi for this device.
@@ -2048,10 +2053,100 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
                        PCI_DEVICE_ID_NVIDIA_NVENET_15,
                        nvenet_msi_disable);
-static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
+static void __devinit nv_ht_enable_msi_mapping(struct pci_dev *dev)
 {
        struct pci_dev *host_bridge;
+        int pos;
+        int i, dev_no;
+        int found = 0;
+        dev_no = dev->devfn >> 3;
+        for (i = dev_no; i >= 0; i--) {
+                host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
+                if (!host_bridge)
+                        continue;
+                pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
+                if (pos != 0) {
+                        found = 1;
+                        break;
+                }
+                pci_dev_put(host_bridge);
+        }
+        if (!found)
+                return;
+        /* root did that ! */
+        if (msi_ht_cap_enabled(host_bridge))
+                goto out;
+        ht_enable_msi_mapping(dev);
+out:
+        pci_dev_put(host_bridge);
+}
+static void __devinit ht_disable_msi_mapping(struct pci_dev *dev)
+{
+        int pos, ttl = 48;
+        pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
+        while (pos && ttl--) {
+                u8 flags;
+                if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
+                                         &flags) == 0) {
+                        dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
+                        pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
+                                              flags & ~HT_MSI_FLAGS_ENABLE);
+                }
+                pos = pci_find_next_ht_capability(dev, pos,
+                                                  HT_CAPTYPE_MSI_MAPPING);
+        }
+}
+static int __devinit ht_check_msi_mapping(struct pci_dev *dev)
+{
        int pos, ttl = 48;
+        int found = 0;
+        /* check if there is HT MSI cap or enabled on this device */
+        pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
+        while (pos && ttl--) {
+                u8 flags;
+                if (found < 1)
+                        found = 1;
+                if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
+                                         &flags) == 0) {
+                        if (flags & HT_MSI_FLAGS_ENABLE) {
+                                if (found < 2) {
+                                        found = 2;
+                                        break;
+                                }
+                        }
+                }
+                pos = pci_find_next_ht_capability(dev, pos,
+                                                  HT_CAPTYPE_MSI_MAPPING);
+        }
+        return found;
+}
+static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
+{
+        struct pci_dev *host_bridge;
+        int pos;
+        int found;
+        /* check if there is HT MSI cap or enabled on this device */
+        found = ht_check_msi_mapping(dev);
+        /* no HT MSI CAP */
+        if (found == 0)
+                return;
        /*
         * HT MSI mapping should be disabled on devices that are below
@@ -2067,24 +2162,19 @@ static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
        pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
        if (pos != 0) {
                /* Host bridge is to HT */
-                ht_enable_msi_mapping(dev);
+                if (found == 1) {
+                        /* it is not enabled, try to enable it */
+                        nv_ht_enable_msi_mapping(dev);
+                }
                return;
        }
-        /* Host bridge is not to HT, disable HT MSI mapping on this device */
+        /* HT MSI is not enabled */
-        pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
+        if (found == 1)
-        while (pos && ttl--) {
+                return;
-                u8 flags;
-                if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
+        /* Host bridge is not to HT, disable HT MSI mapping on this device */
-                                         &flags) == 0) {
+        ht_disable_msi_mapping(dev);
-                        dev_info(&dev->dev, "Disabling HT MSI mapping");
-                        pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
-                                              flags & ~HT_MSI_FLAGS_ENABLE);
-                }
-                pos = pci_find_next_ht_capability(dev, pos,
-                                                  HT_CAPTYPE_MSI_MAPPING);
-        }
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk);
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 3599828b9766..022e89ffec1d 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -133,7 +133,7 @@
 # define SCSPTR3        0xffed0024      /* 16 bit SCIF */
 # define SCSPTR4        0xffee0024      /* 16 bit SCIF */
 # define SCSPTR5        0xffef0024      /* 16 bit SCIF */
-# define SCIF_OPER      0x0001          /* Overrun error bit */
+# define SCIF_ORER      0x0001          /* Overrun error bit */
 # define SCSCR_INIT(port)       0x3a    /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 #elif defined(CONFIG_CPU_SUBTYPE_SH7201) || \
      defined(CONFIG_CPU_SUBTYPE_SH7203) || \
diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
index ab69c1bf36a8..c2747bc88c6f 100644
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -2164,19 +2164,20 @@ static void __exit panel_cleanup_module(void)
        if (scan_timer.function != NULL)
                del_timer(&scan_timer);
-        if (keypad_enabled)
+        if (pprt != NULL) {
-                misc_deregister(&keypad_dev);
+                if (keypad_enabled)
+                        misc_deregister(&keypad_dev);
+                if (lcd_enabled) {
+                        panel_lcd_print("\x0cLCD driver " PANEL_VERSION
+                                        "\nunloaded.\x1b[Lc\x1b[Lb\x1b[L-");
+                        misc_deregister(&lcd_dev);
+                }
-        if (lcd_enabled) {
+                /* TODO: free all input signals */
-                panel_lcd_print("\x0cLCD driver " PANEL_VERSION
+                parport_release(pprt);
-                                "\nunloaded.\x1b[Lc\x1b[Lb\x1b[L-");
+                parport_unregister_device(pprt);
-                misc_deregister(&lcd_dev);
        }
-        /* TODO: free all input signals */
-        parport_release(pprt);
-        parport_unregister_device(pprt);
        parport_unregister_driver(&panel_driver);
 }
diff --git a/drivers/staging/rtl8187se/Kconfig b/drivers/staging/rtl8187se/Kconfig
index 79c225acd1ad..f636296b54bc 100644
--- a/drivers/staging/rtl8187se/Kconfig
+++ b/drivers/staging/rtl8187se/Kconfig
@@ -1,5 +1,6 @@
 config RTL8187SE
        tristate "RealTek RTL8187SE Wireless LAN NIC driver"
        depends on PCI
+        depends on WIRELESS_EXT && COMPAT_NET_DEV_OPS
        default N
        ---help---
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c
index af64cfbe16db..7370296225e1 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c
@@ -234,20 +234,21 @@ out:
 void ieee80211_crypto_deinit(void)
 {
        struct list_head *ptr, *n;
+        struct ieee80211_crypto_alg *alg = NULL;
        if (hcrypt == NULL)
                return;
-        for (ptr = hcrypt->algs.next, n = ptr->next; ptr != &hcrypt->algs;
+        list_for_each_safe(ptr, n, &hcrypt->algs) {
-             ptr = n, n = ptr->next) {
+                alg = list_entry(ptr, struct ieee80211_crypto_alg, list);
-                struct ieee80211_crypto_alg *alg =
+                if (alg) {
-                        (struct ieee80211_crypto_alg *) ptr;
+                        list_del(ptr);
-                list_del(ptr);
+                        printk(KERN_DEBUG
-                printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm "
+                               "ieee80211_crypt: unregistered algorithm '%s' (deinit)\n",
-                       "'%s' (deinit)\n", alg->ops->name);
+                               alg->ops->name);
-                kfree(alg);
+                        kfree(alg);
+                }
        }
        kfree(hcrypt);
 }
diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index 94534955e38b..66de5cc8ddf1 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -6161,10 +6161,10 @@ static void __exit rtl8180_pci_module_exit(void)
 {
        pci_unregister_driver (&rtl8180_pci_driver);
        rtl8180_proc_module_remove();
-        ieee80211_crypto_deinit();
        ieee80211_crypto_tkip_exit();
        ieee80211_crypto_ccmp_exit();
        ieee80211_crypto_wep_exit();
+        ieee80211_crypto_deinit();
        DMESG("Exiting");
 }
diff --git a/drivers/staging/winbond/wbusb.c b/drivers/staging/winbond/wbusb.c
index b003f9a7e151..f716b2e92b65 100644
--- a/drivers/staging/winbond/wbusb.c
+++ b/drivers/staging/winbond/wbusb.c
@@ -319,16 +319,18 @@ static int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id
        struct usb_device *udev = interface_to_usbdev(intf);
        struct wbsoft_priv *priv;
        struct ieee80211_hw *dev;
-        int err;
+        int nr, err;
        usb_get_dev(udev);
        // 20060630.2 Check the device if it already be opened
-        err = usb_control_msg(udev, usb_rcvctrlpipe( udev, 0 ),
+        nr = usb_control_msg(udev, usb_rcvctrlpipe( udev, 0 ),
-                              0x01, USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN,
+                             0x01, USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN,
-                              0x0, 0x400, &ltmp, 4, HZ*100 );
+                             0x0, 0x400, &ltmp, 4, HZ*100 );
-        if (err)
+        if (nr < 0) {
+                err = nr;
                goto error;
+        }
        ltmp = cpu_to_le32(ltmp);
        if (ltmp) {  // Is already initialized?
@@ -337,8 +339,10 @@ static int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id
        }
        dev = ieee80211_alloc_hw(sizeof(*priv), &wbsoft_ops);
-        if (!dev)
+        if (!dev) {
+                err = -ENOMEM;
                goto error;
+        }
        priv = dev->priv;
@@ -369,9 +373,11 @@ static int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id
        }
        dev->extra_tx_headroom = 12;    /* FIXME */
-        dev->flags = 0;
+        dev->flags = IEEE80211_HW_SIGNAL_UNSPEC;
+        dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
        dev->channel_change_time = 1000;
+        dev->max_signal = 100;
        dev->queues = 1;
        dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &wbsoft_band_2GHz;
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 326dd7f65ee9..b3d5a23ab56f 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1376,6 +1376,15 @@ static struct usb_device_id acm_ids[] = {
        { USB_DEVICE(0x0572, 0x1324), /* Conexant USB MODEM RD02-D400 */
        .driver_info = NO_UNION_NORMAL, /* has no union descriptor */
        },
+        { USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */
+        },
+        { USB_DEVICE(0x0572, 0x1329), /* Hummingbird huc56s (Conexant) */
+        .driver_info = NO_UNION_NORMAL, /* union descriptor misplaced on
+                                           data interface instead of
+                                           communications interface.
+                                           Maybe we should define a new
+                                           quirk for this. */
+        },
        /* control interfaces with various AT-command sets */
        { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 31fb204f44c6..49e7f56e0d7f 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -653,7 +653,7 @@ int usb_get_descriptor(struct usb_device *dev, unsigned char type,
                if (result <= 0 && result != -ETIMEDOUT)
                        continue;
                if (result > 1 && ((u8 *)buf)[1] != type) {
-                        result = -EPROTO;
+                        result = -ENODATA;
                        continue;
                }
                break;
@@ -696,8 +696,13 @@ static int usb_get_string(struct usb_device *dev, unsigned short langid,
                        USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
                        (USB_DT_STRING << 8) + index, langid, buf, size,
                        USB_CTRL_GET_TIMEOUT);
-                if (!(result == 0 || result == -EPIPE))
+                if (result == 0 || result == -EPIPE)
-                        break;
+                        continue;
+                if (result > 1 && ((u8 *) buf)[1] != USB_DT_STRING) {
+                        result = -ENODATA;
+                        continue;
+                }
+                break;
        }
        return result;
 }
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 3219d137340a..e55fef52a5dc 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -191,6 +191,7 @@ config USB_GADGET_OMAP
        boolean "OMAP USB Device Controller"
        depends on ARCH_OMAP
        select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG
+        select USB_OTG_UTILS if ARCH_OMAP
        help
           Many Texas Instruments OMAP processors have flexible full
           speed USB device controllers, with support for up to 30
diff --git a/drivers/usb/gadget/f_obex.c b/drivers/usb/gadget/f_obex.c
index 80c2e7e9622f..38aa896cc5db 100644
--- a/drivers/usb/gadget/f_obex.c
+++ b/drivers/usb/gadget/f_obex.c
@@ -366,9 +366,9 @@ obex_bind(struct usb_configuration *c, struct usb_function *f)
                f->hs_descriptors = usb_copy_descriptors(hs_function);
                obex->hs.obex_in = usb_find_endpoint(hs_function,
-                                f->descriptors, &obex_hs_ep_in_desc);
+                                f->hs_descriptors, &obex_hs_ep_in_desc);
                obex->hs.obex_out = usb_find_endpoint(hs_function,
-                                f->descriptors, &obex_hs_ep_out_desc);
+                                f->hs_descriptors, &obex_hs_ep_out_desc);
        }
        /* Avoid letting this gadget enumerate until the userspace
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index b10fa31cc915..1ab9dac7e12d 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -3879,7 +3879,11 @@ static int __init check_parameters(struct fsg_dev *fsg)
        mod_data.protocol_type = USB_SC_SCSI;
        mod_data.protocol_name = "Transparent SCSI";
-        if (gadget_is_sh(fsg->gadget))
+        /* Some peripheral controllers are known not to be able to
+         * halt bulk endpoints correctly.  If one of them is present,
+         * disable stalls.
+         */
+        if (gadget_is_sh(fsg->gadget) || gadget_is_at91(fsg->gadget))
                mod_data.can_stall = 0;
        if (mod_data.release == 0xffff) {       // Parameter wasn't set
diff --git a/drivers/usb/gadget/fsl_usb2_udc.c b/drivers/usb/gadget/fsl_usb2_udc.c
index f3c6703cffda..d8d9a52a44b3 100644
--- a/drivers/usb/gadget/fsl_usb2_udc.c
+++ b/drivers/usb/gadget/fsl_usb2_udc.c
@@ -404,7 +404,10 @@ static void struct_ep_qh_setup(struct fsl_udc *udc, unsigned char ep_num,
        }
        if (zlt)
                tmp |= EP_QUEUE_HEAD_ZLT_SEL;
        p_QH->max_pkt_length = cpu_to_le32(tmp);
+        p_QH->next_dtd_ptr = 1;
+        p_QH->size_ioc_int_sts = 0;
        return;
 }
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 4725d15d096f..e551bb38852b 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -485,6 +485,7 @@ static int ehci_init(struct usb_hcd *hcd)
         * periodic_size can shrink by USBCMD update if hcc_params allows.
         */
        ehci->periodic_size = DEFAULT_I_TDPS;
+        INIT_LIST_HEAD(&ehci->cached_itd_list);
        if ((retval = ehci_mem_init(ehci, GFP_KERNEL)) < 0)
                return retval;
@@ -497,6 +498,7 @@ static int ehci_init(struct usb_hcd *hcd)
        ehci->reclaim = NULL;
        ehci->next_uframe = -1;
+        ehci->clock_frame = -1;
        /*
         * dedicate a qh for the async ring head, since we couldn't unlink
diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c
index 0431397836f6..10d52919abbb 100644
--- a/drivers/usb/host/ehci-mem.c
+++ b/drivers/usb/host/ehci-mem.c
@@ -128,6 +128,7 @@ static inline void qh_put (struct ehci_qh *qh)
 static void ehci_mem_cleanup (struct ehci_hcd *ehci)
 {
+        free_cached_itd_list(ehci);
        if (ehci->async)
                qh_put (ehci->async);
        ehci->async = NULL;
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index a081ee65bde6..07bcb931021b 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1004,7 +1004,8 @@ iso_stream_put(struct ehci_hcd *ehci, struct ehci_iso_stream *stream)
                is_in = (stream->bEndpointAddress & USB_DIR_IN) ? 0x10 : 0;
                stream->bEndpointAddress &= 0x0f;
-                stream->ep->hcpriv = NULL;
+                if (stream->ep)
+                        stream->ep->hcpriv = NULL;
                if (stream->rescheduled) {
                        ehci_info (ehci, "ep%d%s-iso rescheduled "
@@ -1653,14 +1654,28 @@ itd_complete (
                        (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out");
        }
        iso_stream_put (ehci, stream);
-        /* OK to recycle this ITD now that its completion callback ran. */
 done:
        usb_put_urb(urb);
        itd->urb = NULL;
-        itd->stream = NULL;
+        if (ehci->clock_frame != itd->frame || itd->index[7] != -1) {
-        list_move(&itd->itd_list, &stream->free_list);
+                /* OK to recycle this ITD now. */
-        iso_stream_put(ehci, stream);
+                itd->stream = NULL;
+                list_move(&itd->itd_list, &stream->free_list);
+                iso_stream_put(ehci, stream);
+        } else {
+                /* HW might remember this ITD, so we can't recycle it yet.
+                 * Move it to a safe place until a new frame starts.
+                 */
+                list_move(&itd->itd_list, &ehci->cached_itd_list);
+                if (stream->refcount == 2) {
+                        /* If iso_stream_put() were called here, stream
+                         * would be freed.  Instead, just prevent reuse.
+                         */
+                        stream->ep->hcpriv = NULL;
+                        stream->ep = NULL;
+                }
+        }
        return retval;
 }
@@ -2101,6 +2116,20 @@ done:
 /*-------------------------------------------------------------------------*/
+static void free_cached_itd_list(struct ehci_hcd *ehci)
+{
+        struct ehci_itd *itd, *n;
+        list_for_each_entry_safe(itd, n, &ehci->cached_itd_list, itd_list) {
+                struct ehci_iso_stream  *stream = itd->stream;
+                itd->stream = NULL;
+                list_move(&itd->itd_list, &stream->free_list);
+                iso_stream_put(ehci, stream);
+        }
+}
+/*-------------------------------------------------------------------------*/
 static void
 scan_periodic (struct ehci_hcd *ehci)
 {
@@ -2115,10 +2144,17 @@ scan_periodic (struct ehci_hcd *ehci)
         * Touches as few pages as possible:  cache-friendly.
         */
        now_uframe = ehci->next_uframe;
-        if (HC_IS_RUNNING (ehci_to_hcd(ehci)->state))
+        if (HC_IS_RUNNING(ehci_to_hcd(ehci)->state)) {
                clock = ehci_readl(ehci, &ehci->regs->frame_index);
-        else
+                clock_frame = (clock >> 3) % ehci->periodic_size;
+        } else  {
                clock = now_uframe + mod - 1;
+                clock_frame = -1;
+        }
+        if (ehci->clock_frame != clock_frame) {
+                free_cached_itd_list(ehci);
+                ehci->clock_frame = clock_frame;
+        }
        clock %= mod;
        clock_frame = clock >> 3;
@@ -2277,6 +2313,10 @@ restart:
                        /* rescan the rest of this frame, then ... */
                        clock = now;
                        clock_frame = clock >> 3;
+                        if (ehci->clock_frame != clock_frame) {
+                                free_cached_itd_list(ehci);
+                                ehci->clock_frame = clock_frame;
+                        }
                } else {
                        now_uframe++;
                        now_uframe %= mod;
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index fb7054ccf4fc..262b00c9b334 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -87,6 +87,10 @@ struct ehci_hcd {			/* one per controller */
        int                     next_uframe;    /* scan periodic, start here */
        unsigned                periodic_sched; /* periodic activity count */
+        /* list of itds completed while clock_frame was still active */
+        struct list_head        cached_itd_list;
+        unsigned                clock_frame;
        /* per root hub port */
        unsigned long           reset_done [EHCI_MAX_ROOT_PORTS];
@@ -220,6 +224,8 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action)
        }
 }
+static void free_cached_itd_list(struct ehci_hcd *ehci);
 /*-------------------------------------------------------------------------*/
 #include <linux/usb/ehci_def.h>
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index 5a8fd5d57a11..2dc7606f319c 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -377,18 +377,8 @@ int __init musb_platform_init(struct musb *musb)
        u32             revision;
        musb->mregs += DAVINCI_BASE_OFFSET;
-#if 0
-        /* REVISIT there's something odd about clocking, this
-         * didn't appear do the job ...
-         */
-        musb->clock = clk_get(pDevice, "usb");
-        if (IS_ERR(musb->clock))
-                return PTR_ERR(musb->clock);
-        status = clk_enable(musb->clock);
+        clk_enable(musb->clock);
-        if (status < 0)
-                return -ENODEV;
-#endif
        /* returns zero if e.g. not clocked */
        revision = musb_readl(tibase, DAVINCI_USB_VERSION_REG);
@@ -453,5 +443,8 @@ int musb_platform_exit(struct musb *musb)
        }
        phy_off();
+        clk_disable(musb->clock);
        return 0;
 }
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 2cc34fa05b73..af77e4659006 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -115,7 +115,7 @@
 unsigned musb_debug;
-module_param(musb_debug, uint, S_IRUGO | S_IWUSR);
+module_param_named(debug, musb_debug, uint, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(debug, "Debug message level. Default = 0");
 #define DRIVER_AUTHOR "Mentor Graphics, Texas Instruments, Nokia"
@@ -767,6 +767,7 @@ static irqreturn_t musb_stage2_irq(struct musb *musb, u8 int_usb,
 #ifdef CONFIG_USB_MUSB_HDRC_HCD
                case OTG_STATE_A_HOST:
                case OTG_STATE_A_SUSPEND:
+                        usb_hcd_resume_root_hub(musb_to_hcd(musb));
                        musb_root_disconnect(musb);
                        if (musb->a_wait_bcon != 0)
                                musb_platform_try_idle(musb, jiffies
@@ -1815,7 +1816,7 @@ static void musb_free(struct musb *musb)
 #ifdef CONFIG_SYSFS
        device_remove_file(musb->controller, &dev_attr_mode);
        device_remove_file(musb->controller, &dev_attr_vbus);
-#ifdef CONFIG_USB_MUSB_OTG
+#ifdef CONFIG_USB_GADGET_MUSB_HDRC
        device_remove_file(musb->controller, &dev_attr_srp);
 #endif
 #endif
@@ -2063,7 +2064,7 @@ fail2:
 #ifdef CONFIG_SYSFS
        device_remove_file(musb->controller, &dev_attr_mode);
        device_remove_file(musb->controller, &dev_attr_vbus);
-#ifdef CONFIG_USB_MUSB_OTG
+#ifdef CONFIG_USB_GADGET_MUSB_HDRC
        device_remove_file(musb->controller, &dev_attr_srp);
 #endif
 #endif
@@ -2243,10 +2244,10 @@ static int __init musb_init(void)
        return platform_driver_probe(&musb_driver, musb_probe);
 }
-/* make us init after usbcore and before usb
+/* make us init after usbcore and i2c (transceivers, regulators, etc)
- * gadget and host-side drivers start to register
+ * and before usb gadget and host-side drivers start to register
 */
-subsys_initcall(musb_init);
+fs_initcall(musb_init);
 static void __exit musb_cleanup(void)
 {
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 4ea305387981..c7ebd0867fcc 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -575,7 +575,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
        struct usb_request      *request = &req->request;
        struct musb_ep          *musb_ep = &musb->endpoints[epnum].ep_out;
        void __iomem            *epio = musb->endpoints[epnum].regs;
-        u16                     fifo_count = 0;
+        unsigned                fifo_count = 0;
        u16                     len = musb_ep->packet_sz;
        csr = musb_readw(epio, MUSB_RXCSR);
@@ -687,7 +687,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
                                        len, fifo_count,
                                        musb_ep->packet_sz);
-                        fifo_count = min(len, fifo_count);
+                        fifo_count = min_t(unsigned, len, fifo_count);
 #ifdef  CONFIG_USB_TUSB_OMAP_DMA
                        if (tusb_dma_omap() && musb_ep->dma) {
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index a035ceccf950..6dbbd0786a6a 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -335,16 +335,11 @@ musb_save_toggle(struct musb_hw_ep *ep, int is_in, struct urb *urb)
 static struct musb_qh *
 musb_giveback(struct musb_qh *qh, struct urb *urb, int status)
 {
-        int                     is_in;
        struct musb_hw_ep       *ep = qh->hw_ep;
        struct musb             *musb = ep->musb;
+        int                     is_in = usb_pipein(urb->pipe);
        int                     ready = qh->is_ready;
-        if (ep->is_shared_fifo)
-                is_in = 1;
-        else
-                is_in = usb_pipein(urb->pipe);
        /* save toggle eagerly, for paranoia */
        switch (qh->type) {
        case USB_ENDPOINT_XFER_BULK:
@@ -432,7 +427,7 @@ musb_advance_schedule(struct musb *musb, struct urb *urb,
        else
                qh = musb_giveback(qh, urb, urb->status);
-        if (qh && qh->is_ready && !list_empty(&qh->hep->urb_list)) {
+        if (qh != NULL && qh->is_ready) {
                DBG(4, "... next ep%d %cX urb %p\n",
                                hw_ep->epnum, is_in ? 'R' : 'T',
                                next_urb(qh));
@@ -942,8 +937,8 @@ static bool musb_h_ep0_continue(struct musb *musb, u16 len, struct urb *urb)
        switch (musb->ep0_stage) {
        case MUSB_EP0_IN:
                fifo_dest = urb->transfer_buffer + urb->actual_length;
-                fifo_count = min(len, ((u16) (urb->transfer_buffer_length
+                fifo_count = min_t(size_t, len, urb->transfer_buffer_length -
-                                        - urb->actual_length)));
+                                   urb->actual_length);
                if (fifo_count < len)
                        urb->status = -EOVERFLOW;
@@ -976,10 +971,9 @@ static bool musb_h_ep0_continue(struct musb *musb, u16 len, struct urb *urb)
                }
                /* FALLTHROUGH */
        case MUSB_EP0_OUT:
-                fifo_count = min(qh->maxpacket, ((u16)
+                fifo_count = min_t(size_t, qh->maxpacket,
-                                (urb->transfer_buffer_length
+                                   urb->transfer_buffer_length -
-                                - urb->actual_length)));
+                                   urb->actual_length);
                if (fifo_count) {
                        fifo_dest = (u8 *) (urb->transfer_buffer
                                        + urb->actual_length);
@@ -1161,7 +1155,8 @@ void musb_host_tx(struct musb *musb, u8 epnum)
        struct urb              *urb;
        struct musb_hw_ep       *hw_ep = musb->endpoints + epnum;
        void __iomem            *epio = hw_ep->regs;
-        struct musb_qh          *qh = hw_ep->out_qh;
+        struct musb_qh          *qh = hw_ep->is_shared_fifo ? hw_ep->in_qh
+                                                            : hw_ep->out_qh;
        u32                     status = 0;
        void __iomem            *mbase = musb->mregs;
        struct dma_channel      *dma;
@@ -1308,7 +1303,8 @@ void musb_host_tx(struct musb *musb, u8 epnum)
                 * packets before updating TXCSR ... other docs disagree ...
                 */
                /* PIO:  start next packet in this URB */
-                wLength = min(qh->maxpacket, (u16) wLength);
+                if (wLength > qh->maxpacket)
+                        wLength = qh->maxpacket;
                musb_write_fifo(hw_ep, wLength, buf);
                qh->segsize = wLength;
@@ -1867,19 +1863,21 @@ static int musb_urb_enqueue(
        }
        qh->type_reg = type_reg;
-        /* precompute rxinterval/txinterval register */
+        /* Precompute RXINTERVAL/TXINTERVAL register */
-        interval = min((u8)16, epd->bInterval); /* log encoding */
        switch (qh->type) {
        case USB_ENDPOINT_XFER_INT:
-                /* fullspeed uses linear encoding */
+                /*
-                if (USB_SPEED_FULL == urb->dev->speed) {
+                 * Full/low speeds use the  linear encoding,
-                        interval = epd->bInterval;
+                 * high speed uses the logarithmic encoding.
-                        if (!interval)
+                 */
-                                interval = 1;
+                if (urb->dev->speed <= USB_SPEED_FULL) {
+                        interval = max_t(u8, epd->bInterval, 1);
+                        break;
                }
                /* FALLTHROUGH */
        case USB_ENDPOINT_XFER_ISOC:
-                /* iso always uses log encoding */
+                /* ISO always uses logarithmic encoding */
+                interval = min_t(u8, epd->bInterval, 16);
                break;
        default:
                /* REVISIT we actually want to use NAK limits, hinting to the
@@ -2037,9 +2035,9 @@ static int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
                goto done;
        /* Any URB not actively programmed into endpoint hardware can be
-         * immediately given back.  Such an URB must be at the head of its
+         * immediately given back; that's any URB not at the head of an
         * endpoint queue, unless someday we get real DMA queues.  And even
-         * then, it might not be known to the hardware...
+         * if it's at the head, it might not be known to the hardware...
         *
         * Otherwise abort current transfer, pending dma, etc.; urb->status
         * has already been updated.  This is a synchronous abort; it'd be
@@ -2078,6 +2076,15 @@ static int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
                qh->is_ready = 0;
                __musb_giveback(musb, urb, 0);
                qh->is_ready = ready;
+                /* If nothing else (usually musb_giveback) is using it
+                 * and its URB list has emptied, recycle this qh.
+                 */
+                if (ready && list_empty(&qh->hep->urb_list)) {
+                        qh->hep->hcpriv = NULL;
+                        list_del(&qh->ring);
+                        kfree(qh);
+                }
        } else
                ret = musb_cleanup_urb(urb, qh, urb->pipe & USB_DIR_IN);
 done:
@@ -2093,15 +2100,16 @@ musb_h_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep)
        unsigned long           flags;
        struct musb             *musb = hcd_to_musb(hcd);
        u8                      is_in = epnum & USB_DIR_IN;
-        struct musb_qh          *qh = hep->hcpriv;
+        struct musb_qh          *qh;
-        struct urb              *urb, *tmp;
+        struct urb              *urb;
        struct list_head        *sched;
-        if (!qh)
-                return;
        spin_lock_irqsave(&musb->lock, flags);
+        qh = hep->hcpriv;
+        if (qh == NULL)
+                goto exit;
        switch (qh->type) {
        case USB_ENDPOINT_XFER_CONTROL:
                sched = &musb->control;
@@ -2135,13 +2143,28 @@ musb_h_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep)
                /* cleanup */
                musb_cleanup_urb(urb, qh, urb->pipe & USB_DIR_IN);
-        } else
-                urb = NULL;
-        /* then just nuke all the others */
+                /* Then nuke all the others ... and advance the
-        list_for_each_entry_safe_from(urb, tmp, &hep->urb_list, urb_list)
+                 * queue on hw_ep (e.g. bulk ring) when we're done.
-                musb_giveback(qh, urb, -ESHUTDOWN);
+                 */
+                while (!list_empty(&hep->urb_list)) {
+                        urb = next_urb(qh);
+                        urb->status = -ESHUTDOWN;
+                        musb_advance_schedule(musb, urb, qh->hw_ep, is_in);
+                }
+        } else {
+                /* Just empty the queue; the hardware is busy with
+                 * other transfers, and since !qh->is_ready nothing
+                 * will activate any of these as it advances.
+                 */
+                while (!list_empty(&hep->urb_list))
+                        __musb_giveback(musb, next_urb(qh), -ESHUTDOWN);
+                hep->hcpriv = NULL;
+                list_del(&qh->ring);
+                kfree(qh);
+        }
+exit:
        spin_unlock_irqrestore(&musb->lock, flags);
 }
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index bfd0b68ceccd..b7c132bded7f 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -294,7 +294,11 @@ static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *po
 /* Ericsson products */
 #define ERICSSON_VENDOR_ID                      0x0bdb
-#define ERICSSON_PRODUCT_F3507G                 0x1900
+#define ERICSSON_PRODUCT_F3507G_1               0x1900
+#define ERICSSON_PRODUCT_F3507G_2               0x1902
+#define BENQ_VENDOR_ID                          0x04a5
+#define BENQ_PRODUCT_H10                        0x4068
 static struct usb_device_id option_ids[] = {
        { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
@@ -509,7 +513,10 @@ static struct usb_device_id option_ids[] = {
        { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) },
        { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
        { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
-        { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
+        { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G_1) },
+        { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G_2) },
+        { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
+        { USB_DEVICE(0x1da5, 0x4515) }, /* BenQ H20 */
        { } /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, option_ids);
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 50dc33a6065b..6f59c8e510ea 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -907,13 +907,13 @@ UNUSUAL_DEV(  0x05e3, 0x0701, 0x0000, 0xffff,
                "Genesys Logic",
                "USB to IDE Optical",
                US_SC_DEVICE, US_PR_DEVICE, NULL,
-                US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 ),
+                US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 | US_FL_IGNORE_RESIDUE ),
 UNUSUAL_DEV(  0x05e3, 0x0702, 0x0000, 0xffff,
                "Genesys Logic",
                "USB to IDE Disk",
                US_SC_DEVICE, US_PR_DEVICE, NULL,
-                US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 ),
+                US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 | US_FL_IGNORE_RESIDUE ),
 /* Reported by Ben Efros <ben@pc-doctor.com> */
 UNUSUAL_DEV(  0x05e3, 0x0723, 0x9451, 0x9451,
diff --git a/drivers/w1/slaves/Kconfig b/drivers/w1/slaves/Kconfig
index 8d0b1fb1e52e..1f51366417b9 100644
--- a/drivers/w1/slaves/Kconfig
+++ b/drivers/w1/slaves/Kconfig
@@ -16,6 +16,12 @@ config W1_SLAVE_SMEM
          Say Y here if you want to connect 1-wire
          simple 64bit memory rom(ds2401/ds2411/ds1990*) to your wire.
+config W1_SLAVE_DS2431
+        tristate "1kb EEPROM family support (DS2431)"
+        help
+          Say Y here if you want to use a 1-wire
+          1kb EEPROM family device (DS2431)
 config W1_SLAVE_DS2433
        tristate "4kb EEPROM family support (DS2433)"
        help
diff --git a/drivers/w1/slaves/Makefile b/drivers/w1/slaves/Makefile
index 990f400b6d22..f1f51f19b129 100644
--- a/drivers/w1/slaves/Makefile
+++ b/drivers/w1/slaves/Makefile
@@ -4,6 +4,7 @@
 obj-$(CONFIG_W1_SLAVE_THERM)    += w1_therm.o
 obj-$(CONFIG_W1_SLAVE_SMEM)     += w1_smem.o
+obj-$(CONFIG_W1_SLAVE_DS2431)   += w1_ds2431.o
 obj-$(CONFIG_W1_SLAVE_DS2433)   += w1_ds2433.o
 obj-$(CONFIG_W1_SLAVE_DS2760)   += w1_ds2760.o
 obj-$(CONFIG_W1_SLAVE_BQ27000)  += w1_bq27000.o
diff --git a/drivers/w1/slaves/w1_ds2433.c b/drivers/w1/slaves/w1_ds2433.c
index 858c16a544c2..139447148822 100644
--- a/drivers/w1/slaves/w1_ds2433.c
+++ b/drivers/w1/slaves/w1_ds2433.c
@@ -156,6 +156,9 @@ out_up:
 */
 static int w1_f23_write(struct w1_slave *sl, int addr, int len, const u8 *data)
 {
+#ifdef CONFIG_W1_SLAVE_DS2433_CRC
+        struct w1_f23_data *f23 = sl->family_data;
+#endif
        u8 wrbuf[4];
        u8 rdbuf[W1_PAGE_SIZE + 3];
        u8 es = (addr + len - 1) & 0x1f;
@@ -196,7 +199,9 @@ static int w1_f23_write(struct w1_slave *sl, int addr, int len, const u8 *data)
        /* Reset the bus to wake up the EEPROM (this may not be needed) */
        w1_reset_bus(sl->master);
+#ifdef CONFIG_W1_SLAVE_DS2433_CRC
+        f23->validcrc &= ~(1 << (addr >> W1_PAGE_BITS));
+#endif
        return 0;
 }
diff --git a/fs/bio.c b/fs/bio.c
index 72ab251cdb9c..124b95c4d582 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -302,7 +302,7 @@ 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;
+        void *uninitialized_var(p);
        if (bs) {
                p = mempool_alloc(bs->bio_pool, gfp_mask);
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index a8c9693b75ac..72677ce2b74f 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -66,6 +66,9 @@ struct btrfs_inode {
         */
        struct list_head delalloc_inodes;
+        /* the space_info for where this inode's data allocations are done */
+        struct btrfs_space_info *space_info;
        /* full 64 bit generation number, struct vfs_inode doesn't have a big
         * enough field for this.
         */
@@ -94,6 +97,11 @@ struct btrfs_inode {
         */
        u64 delalloc_bytes;
+        /* total number of bytes that may be used for this inode for
+         * delalloc
+         */
+        u64 reserved_bytes;
        /*
         * the size of the file stored in the metadata on disk.  data=ordered
         * means the in-memory i_size might be larger than the size on disk
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 766b31ae3186..82491ba8fa40 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -596,13 +596,27 @@ struct btrfs_block_group_item {
 struct btrfs_space_info {
        u64 flags;
-        u64 total_bytes;
-        u64 bytes_used;
+        u64 total_bytes;        /* total bytes in the space */
-        u64 bytes_pinned;
+        u64 bytes_used;         /* total bytes used on disk */
-        u64 bytes_reserved;
+        u64 bytes_pinned;       /* total bytes pinned, will be freed when the
-        u64 bytes_readonly;
+                                   transaction finishes */
-        int full;
+        u64 bytes_reserved;     /* total bytes the allocator has reserved for
-        int force_alloc;
+                                   current allocations */
+        u64 bytes_readonly;     /* total bytes that are read only */
+        /* delalloc accounting */
+        u64 bytes_delalloc;     /* number of bytes reserved for allocation,
+                                   this space is not necessarily reserved yet
+                                   by the allocator */
+        u64 bytes_may_use;      /* number of bytes that may be used for
+                                   delalloc */
+        int full;               /* indicates that we cannot allocate any more
+                                   chunks for this space */
+        int force_alloc;        /* set if we need to force a chunk alloc for
+                                   this space */
        struct list_head list;
        /* for block groups in our same type */
@@ -1782,6 +1796,16 @@ int btrfs_add_dead_reloc_root(struct btrfs_root *root);
 int btrfs_cleanup_reloc_trees(struct btrfs_root *root);
 int btrfs_reloc_clone_csums(struct inode *inode, u64 file_pos, u64 len);
 u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags);
+void btrfs_set_inode_space_info(struct btrfs_root *root, struct inode *ionde);
+int btrfs_check_metadata_free_space(struct btrfs_root *root);
+int btrfs_check_data_free_space(struct btrfs_root *root, struct inode *inode,
+                                u64 bytes);
+void btrfs_free_reserved_data_space(struct btrfs_root *root,
+                                    struct inode *inode, u64 bytes);
+void btrfs_delalloc_reserve_space(struct btrfs_root *root, struct inode *inode,
+                                 u64 bytes);
+void btrfs_delalloc_free_space(struct btrfs_root *root, struct inode *inode,
+                              u64 bytes);
 /* ctree.c */
 int btrfs_previous_item(struct btrfs_root *root,
                        struct btrfs_path *path, u64 min_objectid,
@@ -2027,8 +2051,6 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
 unsigned long btrfs_force_ra(struct address_space *mapping,
                              struct file_ra_state *ra, struct file *file,
                              pgoff_t offset, pgoff_t last_index);
-int btrfs_check_free_space(struct btrfs_root *root, u64 num_required,
-                           int for_del);
 int btrfs_page_mkwrite(struct vm_area_struct *vma, struct page *page);
 int btrfs_readpage(struct file *file, struct page *page);
 void btrfs_delete_inode(struct inode *inode);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 0a5d796c9f7e..6b5966aacf44 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -60,6 +60,10 @@ static int update_block_group(struct btrfs_trans_handle *trans,
                              u64 bytenr, u64 num_bytes, int alloc,
                              int mark_free);
+static int do_chunk_alloc(struct btrfs_trans_handle *trans,
+                          struct btrfs_root *extent_root, u64 alloc_bytes,
+                          u64 flags, int force);
 static int block_group_bits(struct btrfs_block_group_cache *cache, u64 bits)
 {
        return (cache->flags & bits) == bits;
@@ -1909,6 +1913,7 @@ static int update_space_info(struct btrfs_fs_info *info, u64 flags,
        found->bytes_pinned = 0;
        found->bytes_reserved = 0;
        found->bytes_readonly = 0;
+        found->bytes_delalloc = 0;
        found->full = 0;
        found->force_alloc = 0;
        *space_info = found;
@@ -1972,6 +1977,233 @@ u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags)
        return flags;
 }
+static u64 btrfs_get_alloc_profile(struct btrfs_root *root, u64 data)
+{
+        struct btrfs_fs_info *info = root->fs_info;
+        u64 alloc_profile;
+        if (data) {
+                alloc_profile = info->avail_data_alloc_bits &
+                        info->data_alloc_profile;
+                data = BTRFS_BLOCK_GROUP_DATA | alloc_profile;
+        } else if (root == root->fs_info->chunk_root) {
+                alloc_profile = info->avail_system_alloc_bits &
+                        info->system_alloc_profile;
+                data = BTRFS_BLOCK_GROUP_SYSTEM | alloc_profile;
+        } else {
+                alloc_profile = info->avail_metadata_alloc_bits &
+                        info->metadata_alloc_profile;
+                data = BTRFS_BLOCK_GROUP_METADATA | alloc_profile;
+        }
+        return btrfs_reduce_alloc_profile(root, data);
+}
+void btrfs_set_inode_space_info(struct btrfs_root *root, struct inode *inode)
+{
+        u64 alloc_target;
+        alloc_target = btrfs_get_alloc_profile(root, 1);
+        BTRFS_I(inode)->space_info = __find_space_info(root->fs_info,
+                                                       alloc_target);
+}
+/*
+ * for now this just makes sure we have at least 5% of our metadata space free
+ * for use.
+ */
+int btrfs_check_metadata_free_space(struct btrfs_root *root)
+{
+        struct btrfs_fs_info *info = root->fs_info;
+        struct btrfs_space_info *meta_sinfo;
+        u64 alloc_target, thresh;
+        int committed = 0, ret;
+        /* get the space info for where the metadata will live */
+        alloc_target = btrfs_get_alloc_profile(root, 0);
+        meta_sinfo = __find_space_info(info, alloc_target);
+again:
+        spin_lock(&meta_sinfo->lock);
+        if (!meta_sinfo->full)
+                thresh = meta_sinfo->total_bytes * 80;
+        else
+                thresh = meta_sinfo->total_bytes * 95;
+        do_div(thresh, 100);
+        if (meta_sinfo->bytes_used + meta_sinfo->bytes_reserved +
+            meta_sinfo->bytes_pinned + meta_sinfo->bytes_readonly > thresh) {
+                struct btrfs_trans_handle *trans;
+                if (!meta_sinfo->full) {
+                        meta_sinfo->force_alloc = 1;
+                        spin_unlock(&meta_sinfo->lock);
+                        trans = btrfs_start_transaction(root, 1);
+                        if (!trans)
+                                return -ENOMEM;
+                        ret = do_chunk_alloc(trans, root->fs_info->extent_root,
+                                             2 * 1024 * 1024, alloc_target, 0);
+                        btrfs_end_transaction(trans, root);
+                        goto again;
+                }
+                spin_unlock(&meta_sinfo->lock);
+                if (!committed) {
+                        committed = 1;
+                        trans = btrfs_join_transaction(root, 1);
+                        if (!trans)
+                                return -ENOMEM;
+                        ret = btrfs_commit_transaction(trans, root);
+                        if (ret)
+                                return ret;
+                        goto again;
+                }
+                return -ENOSPC;
+        }
+        spin_unlock(&meta_sinfo->lock);
+        return 0;
+}
+/*
+ * This will check the space that the inode allocates from to make sure we have
+ * enough space for bytes.
+ */
+int btrfs_check_data_free_space(struct btrfs_root *root, struct inode *inode,
+                                u64 bytes)
+{
+        struct btrfs_space_info *data_sinfo;
+        int ret = 0, committed = 0;
+        /* make sure bytes are sectorsize aligned */
+        bytes = (bytes + root->sectorsize - 1) & ~((u64)root->sectorsize - 1);
+        data_sinfo = BTRFS_I(inode)->space_info;
+again:
+        /* make sure we have enough space to handle the data first */
+        spin_lock(&data_sinfo->lock);
+        if (data_sinfo->total_bytes - data_sinfo->bytes_used -
+            data_sinfo->bytes_delalloc - data_sinfo->bytes_reserved -
+            data_sinfo->bytes_pinned - data_sinfo->bytes_readonly -
+            data_sinfo->bytes_may_use < bytes) {
+                struct btrfs_trans_handle *trans;
+                /*
+                 * if we don't have enough free bytes in this space then we need
+                 * to alloc a new chunk.
+                 */
+                if (!data_sinfo->full) {
+                        u64 alloc_target;
+                        data_sinfo->force_alloc = 1;
+                        spin_unlock(&data_sinfo->lock);
+                        alloc_target = btrfs_get_alloc_profile(root, 1);
+                        trans = btrfs_start_transaction(root, 1);
+                        if (!trans)
+                                return -ENOMEM;
+                        ret = do_chunk_alloc(trans, root->fs_info->extent_root,
+                                             bytes + 2 * 1024 * 1024,
+                                             alloc_target, 0);
+                        btrfs_end_transaction(trans, root);
+                        if (ret)
+                                return ret;
+                        goto again;
+                }
+                spin_unlock(&data_sinfo->lock);
+                /* commit the current transaction and try again */
+                if (!committed) {
+                        committed = 1;
+                        trans = btrfs_join_transaction(root, 1);
+                        if (!trans)
+                                return -ENOMEM;
+                        ret = btrfs_commit_transaction(trans, root);
+                        if (ret)
+                                return ret;
+                        goto again;
+                }
+                printk(KERN_ERR "no space left, need %llu, %llu delalloc bytes"
+                       ", %llu bytes_used, %llu bytes_reserved, "
+                       "%llu bytes_pinned, %llu bytes_readonly, %llu may use"
+                       "%llu total\n", bytes, data_sinfo->bytes_delalloc,
+                       data_sinfo->bytes_used, data_sinfo->bytes_reserved,
+                       data_sinfo->bytes_pinned, data_sinfo->bytes_readonly,
+                       data_sinfo->bytes_may_use, data_sinfo->total_bytes);
+                return -ENOSPC;
+        }
+        data_sinfo->bytes_may_use += bytes;
+        BTRFS_I(inode)->reserved_bytes += bytes;
+        spin_unlock(&data_sinfo->lock);
+        return btrfs_check_metadata_free_space(root);
+}
+/*
+ * if there was an error for whatever reason after calling
+ * btrfs_check_data_free_space, call this so we can cleanup the counters.
+ */
+void btrfs_free_reserved_data_space(struct btrfs_root *root,
+                                    struct inode *inode, u64 bytes)
+{
+        struct btrfs_space_info *data_sinfo;
+        /* make sure bytes are sectorsize aligned */
+        bytes = (bytes + root->sectorsize - 1) & ~((u64)root->sectorsize - 1);
+        data_sinfo = BTRFS_I(inode)->space_info;
+        spin_lock(&data_sinfo->lock);
+        data_sinfo->bytes_may_use -= bytes;
+        BTRFS_I(inode)->reserved_bytes -= bytes;
+        spin_unlock(&data_sinfo->lock);
+}
+/* called when we are adding a delalloc extent to the inode's io_tree */
+void btrfs_delalloc_reserve_space(struct btrfs_root *root, struct inode *inode,
+                                  u64 bytes)
+{
+        struct btrfs_space_info *data_sinfo;
+        /* get the space info for where this inode will be storing its data */
+        data_sinfo = BTRFS_I(inode)->space_info;
+        /* make sure we have enough space to handle the data first */
+        spin_lock(&data_sinfo->lock);
+        data_sinfo->bytes_delalloc += bytes;
+        /*
+         * we are adding a delalloc extent without calling
+         * btrfs_check_data_free_space first.  This happens on a weird
+         * writepage condition, but shouldn't hurt our accounting
+         */
+        if (unlikely(bytes > BTRFS_I(inode)->reserved_bytes)) {
+                data_sinfo->bytes_may_use -= BTRFS_I(inode)->reserved_bytes;
+                BTRFS_I(inode)->reserved_bytes = 0;
+        } else {
+                data_sinfo->bytes_may_use -= bytes;
+                BTRFS_I(inode)->reserved_bytes -= bytes;
+        }
+        spin_unlock(&data_sinfo->lock);
+}
+/* called when we are clearing an delalloc extent from the inode's io_tree */
+void btrfs_delalloc_free_space(struct btrfs_root *root, struct inode *inode,
+                              u64 bytes)
+{
+        struct btrfs_space_info *info;
+        info = BTRFS_I(inode)->space_info;
+        spin_lock(&info->lock);
+        info->bytes_delalloc -= bytes;
+        spin_unlock(&info->lock);
+}
 static int do_chunk_alloc(struct btrfs_trans_handle *trans,
                          struct btrfs_root *extent_root, u64 alloc_bytes,
                          u64 flags, int force)
@@ -3105,6 +3337,10 @@ static void dump_space_info(struct btrfs_space_info *info, u64 bytes)
               (unsigned long long)(info->total_bytes - info->bytes_used -
                                    info->bytes_pinned - info->bytes_reserved),
               (info->full) ? "" : "not ");
+        printk(KERN_INFO "space_info total=%llu, pinned=%llu, delalloc=%llu,"
+               " may_use=%llu, used=%llu\n", info->total_bytes,
+               info->bytes_pinned, info->bytes_delalloc, info->bytes_may_use,
+               info->bytes_used);
        down_read(&info->groups_sem);
        list_for_each_entry(cache, &info->block_groups, list) {
@@ -3131,24 +3367,10 @@ static int __btrfs_reserve_extent(struct btrfs_trans_handle *trans,
 {
        int ret;
        u64 search_start = 0;
-        u64 alloc_profile;
        struct btrfs_fs_info *info = root->fs_info;
-        if (data) {
+        data = btrfs_get_alloc_profile(root, data);
-                alloc_profile = info->avail_data_alloc_bits &
-                        info->data_alloc_profile;
-                data = BTRFS_BLOCK_GROUP_DATA | alloc_profile;
-        } else if (root == root->fs_info->chunk_root) {
-                alloc_profile = info->avail_system_alloc_bits &
-                        info->system_alloc_profile;
-                data = BTRFS_BLOCK_GROUP_SYSTEM | alloc_profile;
-        } else {
-                alloc_profile = info->avail_metadata_alloc_bits &
-                        info->metadata_alloc_profile;
-                data = BTRFS_BLOCK_GROUP_METADATA | alloc_profile;
-        }
 again:
-        data = btrfs_reduce_alloc_profile(root, data);
        /*
         * the only place that sets empty_size is btrfs_realloc_node, which
         * is not called recursively on allocations
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 872f104576e5..dc78954861b3 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1091,19 +1091,24 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf,
                WARN_ON(num_pages > nrptrs);
                memset(pages, 0, sizeof(struct page *) * nrptrs);
-                ret = btrfs_check_free_space(root, write_bytes, 0);
+                ret = btrfs_check_data_free_space(root, inode, write_bytes);
                if (ret)
                        goto out;
                ret = prepare_pages(root, file, pages, num_pages,
                                    pos, first_index, last_index,
                                    write_bytes);
-                if (ret)
+                if (ret) {
+                        btrfs_free_reserved_data_space(root, inode,
+                                                       write_bytes);
                        goto out;
+                }
                ret = btrfs_copy_from_user(pos, num_pages,
                                           write_bytes, pages, buf);
                if (ret) {
+                        btrfs_free_reserved_data_space(root, inode,
+                                                       write_bytes);
                        btrfs_drop_pages(pages, num_pages);
                        goto out;
                }
@@ -1111,8 +1116,11 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf,
                ret = dirty_and_release_pages(NULL, root, file, pages,
                                              num_pages, pos, write_bytes);
                btrfs_drop_pages(pages, num_pages);
-                if (ret)
+                if (ret) {
+                        btrfs_free_reserved_data_space(root, inode,
+                                                       write_bytes);
                        goto out;
+                }
                if (will_write) {
                        btrfs_fdatawrite_range(inode->i_mapping, pos,
@@ -1136,6 +1144,8 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf,
        }
 out:
        mutex_unlock(&inode->i_mutex);
+        if (ret)
+                err = ret;
 out_nolock:
        kfree(pages);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 3cee77ae03c8..7d4f948bc22a 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -102,34 +102,6 @@ static int btrfs_init_inode_security(struct inode *inode,  struct inode *dir)
 }
 /*
- * a very lame attempt at stopping writes when the FS is 85% full.  There
- * are countless ways this is incorrect, but it is better than nothing.
- */
-int btrfs_check_free_space(struct btrfs_root *root, u64 num_required,
-                           int for_del)
-{
-        u64 total;
-        u64 used;
-        u64 thresh;
-        int ret = 0;
-        spin_lock(&root->fs_info->delalloc_lock);
-        total = btrfs_super_total_bytes(&root->fs_info->super_copy);
-        used = btrfs_super_bytes_used(&root->fs_info->super_copy);
-        if (for_del)
-                thresh = total * 90;
-        else
-                thresh = total * 85;
-        do_div(thresh, 100);
-        if (used + root->fs_info->delalloc_bytes + num_required > thresh)
-                ret = -ENOSPC;
-        spin_unlock(&root->fs_info->delalloc_lock);
-        return ret;
-}
-/*
 * this does all the hard work for inserting an inline extent into
 * the btree.  The caller should have done a btrfs_drop_extents so that
 * no overlapping inline items exist in the btree
@@ -1190,6 +1162,7 @@ static int btrfs_set_bit_hook(struct inode *inode, u64 start, u64 end,
         */
        if (!(old & EXTENT_DELALLOC) && (bits & EXTENT_DELALLOC)) {
                struct btrfs_root *root = BTRFS_I(inode)->root;
+                btrfs_delalloc_reserve_space(root, inode, end - start + 1);
                spin_lock(&root->fs_info->delalloc_lock);
                BTRFS_I(inode)->delalloc_bytes += end - start + 1;
                root->fs_info->delalloc_bytes += end - start + 1;
@@ -1223,9 +1196,12 @@ static int btrfs_clear_bit_hook(struct inode *inode, u64 start, u64 end,
                               (unsigned long long)end - start + 1,
                               (unsigned long long)
                               root->fs_info->delalloc_bytes);
+                        btrfs_delalloc_free_space(root, inode, (u64)-1);
                        root->fs_info->delalloc_bytes = 0;
                        BTRFS_I(inode)->delalloc_bytes = 0;
                } else {
+                        btrfs_delalloc_free_space(root, inode,
+                                                  end - start + 1);
                        root->fs_info->delalloc_bytes -= end - start + 1;
                        BTRFS_I(inode)->delalloc_bytes -= end - start + 1;
                }
@@ -2245,10 +2221,6 @@ static int btrfs_unlink(struct inode *dir, struct dentry *dentry)
        root = BTRFS_I(dir)->root;
-        ret = btrfs_check_free_space(root, 1, 1);
-        if (ret)
-                goto fail;
        trans = btrfs_start_transaction(root, 1);
        btrfs_set_trans_block_group(trans, dir);
@@ -2261,7 +2233,6 @@ static int btrfs_unlink(struct inode *dir, struct dentry *dentry)
        nr = trans->blocks_used;
        btrfs_end_transaction_throttle(trans, root);
-fail:
        btrfs_btree_balance_dirty(root, nr);
        return ret;
 }
@@ -2284,10 +2255,6 @@ static int btrfs_rmdir(struct inode *dir, struct dentry *dentry)
                return -ENOTEMPTY;
        }
-        ret = btrfs_check_free_space(root, 1, 1);
-        if (ret)
-                goto fail;
        trans = btrfs_start_transaction(root, 1);
        btrfs_set_trans_block_group(trans, dir);
@@ -2304,7 +2271,6 @@ static int btrfs_rmdir(struct inode *dir, struct dentry *dentry)
 fail_trans:
        nr = trans->blocks_used;
        ret = btrfs_end_transaction_throttle(trans, root);
-fail:
        btrfs_btree_balance_dirty(root, nr);
        if (ret && !err)
@@ -2818,7 +2784,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t size)
        if (size <= hole_start)
                return 0;
-        err = btrfs_check_free_space(root, 1, 0);
+        err = btrfs_check_metadata_free_space(root);
        if (err)
                return err;
@@ -3014,6 +2980,7 @@ static noinline void init_btrfs_i(struct inode *inode)
        bi->last_trans = 0;
        bi->logged_trans = 0;
        bi->delalloc_bytes = 0;
+        bi->reserved_bytes = 0;
        bi->disk_i_size = 0;
        bi->flags = 0;
        bi->index_cnt = (u64)-1;
@@ -3035,6 +3002,7 @@ static int btrfs_init_locked_inode(struct inode *inode, void *p)
        inode->i_ino = args->ino;
        init_btrfs_i(inode);
        BTRFS_I(inode)->root = args->root;
+        btrfs_set_inode_space_info(args->root, inode);
        return 0;
 }
@@ -3455,6 +3423,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
        BTRFS_I(inode)->index_cnt = 2;
        BTRFS_I(inode)->root = root;
        BTRFS_I(inode)->generation = trans->transid;
+        btrfs_set_inode_space_info(root, inode);
        if (mode & S_IFDIR)
                owner = 0;
@@ -3602,7 +3571,7 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
        if (!new_valid_dev(rdev))
                return -EINVAL;
-        err = btrfs_check_free_space(root, 1, 0);
+        err = btrfs_check_metadata_free_space(root);
        if (err)
                goto fail;
@@ -3665,7 +3634,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
        u64 objectid;
        u64 index = 0;
-        err = btrfs_check_free_space(root, 1, 0);
+        err = btrfs_check_metadata_free_space(root);
        if (err)
                goto fail;
        trans = btrfs_start_transaction(root, 1);
@@ -3733,7 +3702,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
                return -ENOENT;
        btrfs_inc_nlink(inode);
-        err = btrfs_check_free_space(root, 1, 0);
+        err = btrfs_check_metadata_free_space(root);
        if (err)
                goto fail;
        err = btrfs_set_inode_index(dir, &index);
@@ -3779,7 +3748,7 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
        u64 index = 0;
        unsigned long nr = 1;
-        err = btrfs_check_free_space(root, 1, 0);
+        err = btrfs_check_metadata_free_space(root);
        if (err)
                goto out_unlock;
@@ -4336,7 +4305,7 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct page *page)
        u64 page_start;
        u64 page_end;
-        ret = btrfs_check_free_space(root, PAGE_CACHE_SIZE, 0);
+        ret = btrfs_check_data_free_space(root, inode, PAGE_CACHE_SIZE);
        if (ret)
                goto out;
@@ -4349,6 +4318,7 @@ again:
        if ((page->mapping != inode->i_mapping) ||
            (page_start >= size)) {
+                btrfs_free_reserved_data_space(root, inode, PAGE_CACHE_SIZE);
                /* page got truncated out from underneath us */
                goto out_unlock;
        }
@@ -4631,7 +4601,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
        if (old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)
                return -EXDEV;
-        ret = btrfs_check_free_space(root, 1, 0);
+        ret = btrfs_check_metadata_free_space(root);
        if (ret)
                goto out_unlock;
@@ -4749,7 +4719,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
        if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(root))
                return -ENAMETOOLONG;
-        err = btrfs_check_free_space(root, 1, 0);
+        err = btrfs_check_metadata_free_space(root);
        if (err)
                goto out_fail;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 988fdc8b49eb..bca729fc80c8 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -70,7 +70,7 @@ static noinline int create_subvol(struct btrfs_root *root,
        u64 index = 0;
        unsigned long nr = 1;
-        ret = btrfs_check_free_space(root, 1, 0);
+        ret = btrfs_check_metadata_free_space(root);
        if (ret)
                goto fail_commit;
@@ -203,7 +203,7 @@ static int create_snapshot(struct btrfs_root *root, struct dentry *dentry,
        if (!root->ref_cows)
                return -EINVAL;
-        ret = btrfs_check_free_space(root, 1, 0);
+        ret = btrfs_check_metadata_free_space(root);
        if (ret)
                goto fail_unlock;
@@ -374,7 +374,7 @@ static int btrfs_defrag_file(struct file *file)
        unsigned long i;
        int ret;
-        ret = btrfs_check_free_space(root, inode->i_size, 0);
+        ret = btrfs_check_data_free_space(root, inode, inode->i_size);
        if (ret)
                return -ENOSPC;
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 39bd4d38e889..45e59d3c7f1f 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1913,6 +1913,9 @@ COMPATIBLE_IOCTL(FIONREAD)  /* This is also TIOCINQ */
 /* 0x00 */
 COMPATIBLE_IOCTL(FIBMAP)
 COMPATIBLE_IOCTL(FIGETBSZ)
+/* 'X' - originally XFS but some now in the VFS */
+COMPATIBLE_IOCTL(FIFREEZE)
+COMPATIBLE_IOCTL(FITHAW)
 /* RAID */
 COMPATIBLE_IOCTL(RAID_VERSION)
 COMPATIBLE_IOCTL(GET_ARRAY_INFO)
diff --git a/fs/dcache.c b/fs/dcache.c
index 937df0fb0da5..07e2d4a44bda 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1180,7 +1180,7 @@ struct dentry *d_obtain_alias(struct inode *inode)
        iput(inode);
        return res;
 }
-EXPORT_SYMBOL_GPL(d_obtain_alias);
+EXPORT_SYMBOL(d_obtain_alias);
 /**
 * d_splice_alias - splice a disconnected dentry into the tree if one exists
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index 3cceef4ad2b7..e9580104b6ba 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -95,13 +95,17 @@ static int jffs2_garbage_collect_thread(void *_c)
                        spin_unlock(&c->erase_completion_lock);
                        
-                /* This thread is purely an optimisation. But if it runs when
+                /* Problem - immediately after bootup, the GCD spends a lot
-                   other things could be running, it actually makes things a
+                 * of time in places like jffs2_kill_fragtree(); so much so
-                   lot worse. Use yield() and put it at the back of the runqueue
+                 * that userspace processes (like gdm and X) are starved
-                   every time. Especially during boot, pulling an inode in
+                 * despite plenty of cond_resched()s and renicing.  Yield()
-                   with read_inode() is much preferable to having the GC thread
+                 * doesn't help, either (presumably because userspace and GCD
-                   get there first. */
+                 * are generally competing for a higher latency resource -
-                yield();
+                 * disk).
+                 * This forces the GCD to slow the hell down.   Pulling an
+                 * inode in with read_inode() is much preferable to having
+                 * the GC thread get there first. */
+                schedule_timeout_interruptible(msecs_to_jiffies(50));
                /* Put_super will send a SIGKILL and then wait on the sem.
                 */
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 6ca08ad887c0..1fc1e92356ee 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -220,7 +220,7 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
                                struct jffs2_tmp_dnode_info *tn)
 {
        uint32_t fn_end = tn->fn->ofs + tn->fn->size;
-        struct jffs2_tmp_dnode_info *this;
+        struct jffs2_tmp_dnode_info *this, *ptn;
        dbg_readinode("insert fragment %#04x-%#04x, ver %u at %08x\n", tn->fn->ofs, fn_end, tn->version, ref_offset(tn->fn->raw));
@@ -251,11 +251,18 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
        if (this) {
                /* If the node is coincident with another at a lower address,
                   back up until the other node is found. It may be relevant */
-                while (this->overlapped)
+                while (this->overlapped) {
-                        this = tn_prev(this);
+                        ptn = tn_prev(this);
+                        if (!ptn) {
-                /* First node should never be marked overlapped */
+                                /*
-                BUG_ON(!this);
+                                 * We killed a node which set the overlapped
+                                 * flags during the scan. Fix it up.
+                                 */
+                                this->overlapped = 0;
+                                break;
+                        }
+                        this = ptn;
+                }
                dbg_readinode("'this' found %#04x-%#04x (%s)\n", this->fn->ofs, this->fn->ofs + this->fn->size, this->fn ? "data" : "hole");
        }
@@ -360,7 +367,17 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
                        }
                        if (!this->overlapped)
                                break;
-                        this = tn_prev(this);
+                        ptn = tn_prev(this);
+                        if (!ptn) {
+                                /*
+                                 * We killed a node which set the overlapped
+                                 * flags during the scan. Fix it up.
+                                 */
+                                this->overlapped = 0;
+                                break;
+                        }
+                        this = ptn;
                }
        }
@@ -456,8 +473,15 @@ static int jffs2_build_inode_fragtree(struct jffs2_sb_info *c,
                eat_last(&rii->tn_root, &last->rb);
                ver_insert(&ver_root, last);
-                if (unlikely(last->overlapped))
+                if (unlikely(last->overlapped)) {
-                        continue;
+                        if (pen)
+                                continue;
+                        /*
+                         * We killed a node which set the overlapped
+                         * flags during the scan. Fix it up.
+                         */
+                        last->overlapped = 0;
+                }
                /* Now we have a bunch of nodes in reverse version
                   order, in the tree at ver_root. Most of the time,
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 60fe74035db5..3a9e5deed74d 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -4796,6 +4796,29 @@ out:
        return ret;
 }
+static int ocfs2_replace_extent_rec(struct inode *inode,
+                                    handle_t *handle,
+                                    struct ocfs2_path *path,
+                                    struct ocfs2_extent_list *el,
+                                    int split_index,
+                                    struct ocfs2_extent_rec *split_rec)
+{
+        int ret;
+        ret = ocfs2_path_bh_journal_access(handle, inode, path,
+                                           path_num_items(path) - 1);
+        if (ret) {
+                mlog_errno(ret);
+                goto out;
+        }
+        el->l_recs[split_index] = *split_rec;
+        ocfs2_journal_dirty(handle, path_leaf_bh(path));
+out:
+        return ret;
+}
 /*
 * Mark part or all of the extent record at split_index in the leaf
 * pointed to by path as written. This removes the unwritten
@@ -4885,7 +4908,9 @@ static int __ocfs2_mark_extent_written(struct inode *inode,
        if (ctxt.c_contig_type == CONTIG_NONE) {
                if (ctxt.c_split_covers_rec)
-                        el->l_recs[split_index] = *split_rec;
+                        ret = ocfs2_replace_extent_rec(inode, handle,
+                                                       path, el,
+                                                       split_index, split_rec);
                else
                        ret = ocfs2_split_and_insert(inode, handle, path, et,
                                                     &last_eb_bh, split_index,
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 54e182a27caf..0a2813947853 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -1849,12 +1849,12 @@ int dlm_assert_master_handler(struct o2net_msg *msg, u32 len, void *data,
                if (!mle) {
                        if (res->owner != DLM_LOCK_RES_OWNER_UNKNOWN &&
                            res->owner != assert->node_idx) {
-                                mlog(ML_ERROR, "assert_master from "
+                                mlog(ML_ERROR, "DIE! Mastery assert from %u, "
-                                          "%u, but current owner is "
+                                     "but current owner is %u! (%.*s)\n",
-                                          "%u! (%.*s)\n",
+                                     assert->node_idx, res->owner, namelen,
-                                       assert->node_idx, res->owner,
+                                     name);
-                                       namelen, name);
+                                __dlm_print_one_lock_resource(res);
-                                goto kill;
+                                BUG();
                        }
                } else if (mle->type != DLM_MLE_MIGRATION) {
                        if (res->owner != DLM_LOCK_RES_OWNER_UNKNOWN) {
diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c
index d1295203029f..4060bb328bc8 100644
--- a/fs/ocfs2/dlm/dlmthread.c
+++ b/fs/ocfs2/dlm/dlmthread.c
@@ -181,8 +181,7 @@ static int dlm_purge_lockres(struct dlm_ctxt *dlm,
                spin_lock(&res->spinlock);
                /* This ensures that clear refmap is sent after the set */
-                __dlm_wait_on_lockres_flags(res, (DLM_LOCK_RES_SETREF_INPROG |
+                __dlm_wait_on_lockres_flags(res, DLM_LOCK_RES_SETREF_INPROG);
-                                                  DLM_LOCK_RES_MIGRATING));
                spin_unlock(&res->spinlock);
                /* clear our bit from the master's refmap, ignore errors */
diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c
index 86ca085ef324..fcf879ed6930 100644
--- a/fs/ocfs2/dlm/dlmunlock.c
+++ b/fs/ocfs2/dlm/dlmunlock.c
@@ -117,11 +117,11 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm,
        else
                BUG_ON(res->owner == dlm->node_num);
-        spin_lock(&dlm->spinlock);
+        spin_lock(&dlm->ast_lock);
        /* We want to be sure that we're not freeing a lock
         * that still has AST's pending... */
        in_use = !list_empty(&lock->ast_list);
-        spin_unlock(&dlm->spinlock);
+        spin_unlock(&dlm->ast_lock);
        if (in_use) {
               mlog(ML_ERROR, "lockres %.*s: Someone is calling dlmunlock "
                    "while waiting for an ast!", res->lockname.len,
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 206a2370876a..7219a86d34cc 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -320,9 +320,14 @@ static void ocfs2_schedule_blocked_lock(struct ocfs2_super *osb,
                                        struct ocfs2_lock_res *lockres);
 static inline void ocfs2_recover_from_dlm_error(struct ocfs2_lock_res *lockres,
                                                int convert);
-#define ocfs2_log_dlm_error(_func, _err, _lockres) do {                 \
+#define ocfs2_log_dlm_error(_func, _err, _lockres) do {                                 \
-        mlog(ML_ERROR, "DLM error %d while calling %s on resource %s\n", \
+        if ((_lockres)->l_type != OCFS2_LOCK_TYPE_DENTRY)                               \
-             _err, _func, _lockres->l_name);                            \
+                mlog(ML_ERROR, "DLM error %d while calling %s on resource %s\n",        \
+                     _err, _func, _lockres->l_name);                                    \
+        else                                                                            \
+                mlog(ML_ERROR, "DLM error %d while calling %s on resource %.*s%08x\n",  \
+                     _err, _func, OCFS2_DENTRY_LOCK_INO_START - 1, (_lockres)->l_name,  \
+                     (unsigned int)ocfs2_get_dentry_lock_ino(_lockres));                \
 } while (0)
 static int ocfs2_downconvert_thread(void *arg);
 static void ocfs2_downconvert_on_unlock(struct ocfs2_super *osb,
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 077384135f4e..946d3c34b90b 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -341,6 +341,9 @@ struct ocfs2_super
        struct ocfs2_node_map           osb_recovering_orphan_dirs;
        unsigned int                    *osb_orphan_wipes;
        wait_queue_head_t               osb_wipe_event;
+        /* used to protect metaecc calculation check of xattr. */
+        spinlock_t osb_xattr_lock;
 };
 #define OCFS2_SB(sb)        ((struct ocfs2_super *)(sb)->s_fs_info)
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index b1cb38fbe807..7ac83a81ee55 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1537,6 +1537,13 @@ static int ocfs2_get_sector(struct super_block *sb,
        unlock_buffer(*bh);
        ll_rw_block(READ, 1, bh);
        wait_on_buffer(*bh);
+        if (!buffer_uptodate(*bh)) {
+                mlog_errno(-EIO);
+                brelse(*bh);
+                *bh = NULL;
+                return -EIO;
+        }
        return 0;
 }
@@ -1747,6 +1754,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
        INIT_LIST_HEAD(&osb->blocked_lock_list);
        osb->blocked_lock_count = 0;
        spin_lock_init(&osb->osb_lock);
+        spin_lock_init(&osb->osb_xattr_lock);
        ocfs2_init_inode_steal_slot(osb);
        atomic_set(&osb->alloc_stats.moves, 0);
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 915039fffe6e..4ddd788add67 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -82,13 +82,14 @@ struct ocfs2_xattr_set_ctxt {
 #define OCFS2_XATTR_ROOT_SIZE   (sizeof(struct ocfs2_xattr_def_value_root))
 #define OCFS2_XATTR_INLINE_SIZE 80
+#define OCFS2_XATTR_HEADER_GAP  4
 #define OCFS2_XATTR_FREE_IN_IBODY       (OCFS2_MIN_XATTR_INLINE_SIZE \
                                         - sizeof(struct ocfs2_xattr_header) \
-                                         - sizeof(__u32))
+                                         - OCFS2_XATTR_HEADER_GAP)
 #define OCFS2_XATTR_FREE_IN_BLOCK(ptr)  ((ptr)->i_sb->s_blocksize \
                                         - sizeof(struct ocfs2_xattr_block) \
                                         - sizeof(struct ocfs2_xattr_header) \
-                                         - sizeof(__u32))
+                                         - OCFS2_XATTR_HEADER_GAP)
 static struct ocfs2_xattr_def_value_root def_xv = {
        .xv.xr_list.l_count = cpu_to_le16(1),
@@ -274,10 +275,12 @@ static int ocfs2_read_xattr_bucket(struct ocfs2_xattr_bucket *bucket,
                               bucket->bu_blocks, bucket->bu_bhs, 0,
                               NULL);
        if (!rc) {
+                spin_lock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
                rc = ocfs2_validate_meta_ecc_bhs(bucket->bu_inode->i_sb,
                                                 bucket->bu_bhs,
                                                 bucket->bu_blocks,
                                                 &bucket_xh(bucket)->xh_check);
+                spin_unlock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
                if (rc)
                        mlog_errno(rc);
        }
@@ -310,9 +313,11 @@ static void ocfs2_xattr_bucket_journal_dirty(handle_t *handle,
 {
        int i;
+        spin_lock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
        ocfs2_compute_meta_ecc_bhs(bucket->bu_inode->i_sb,
                                   bucket->bu_bhs, bucket->bu_blocks,
                                   &bucket_xh(bucket)->xh_check);
+        spin_unlock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
        for (i = 0; i < bucket->bu_blocks; i++)
                ocfs2_journal_dirty(handle, bucket->bu_bhs[i]);
@@ -1507,7 +1512,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
                last += 1;
        }
-        free = min_offs - ((void *)last - xs->base) - sizeof(__u32);
+        free = min_offs - ((void *)last - xs->base) - OCFS2_XATTR_HEADER_GAP;
        if (free < 0)
                return -EIO;
@@ -2190,7 +2195,7 @@ static int ocfs2_xattr_can_be_in_inode(struct inode *inode,
                last += 1;
        }
-        free = min_offs - ((void *)last - xs->base) - sizeof(__u32);
+        free = min_offs - ((void *)last - xs->base) - OCFS2_XATTR_HEADER_GAP;
        if (free < 0)
                return 0;
@@ -2592,8 +2597,9 @@ static int __ocfs2_xattr_set_handle(struct inode *inode,
        if (!ret) {
                /* Update inode ctime. */
-                ret = ocfs2_journal_access(ctxt->handle, inode, xis->inode_bh,
+                ret = ocfs2_journal_access_di(ctxt->handle, inode,
-                                           OCFS2_JOURNAL_ACCESS_WRITE);
+                                              xis->inode_bh,
+                                              OCFS2_JOURNAL_ACCESS_WRITE);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
@@ -5060,8 +5066,8 @@ try_again:
        xh_free_start = le16_to_cpu(xh->xh_free_start);
        header_size = sizeof(struct ocfs2_xattr_header) +
                        count * sizeof(struct ocfs2_xattr_entry);
-        max_free = OCFS2_XATTR_BUCKET_SIZE -
+        max_free = OCFS2_XATTR_BUCKET_SIZE - header_size -
-                le16_to_cpu(xh->xh_name_value_len) - header_size;
+                le16_to_cpu(xh->xh_name_value_len) - OCFS2_XATTR_HEADER_GAP;
        mlog_bug_on_msg(header_size > blocksize, "bucket %llu has header size "
                        "of %u which exceed block size\n",
@@ -5094,7 +5100,7 @@ try_again:
                        need = 0;
        }
-        free = xh_free_start - header_size;
+        free = xh_free_start - header_size - OCFS2_XATTR_HEADER_GAP;
        /*
         * We need to make sure the new name/value pair
         * can exist in the same block.
@@ -5127,7 +5133,8 @@ try_again:
                        }
                        xh_free_start = le16_to_cpu(xh->xh_free_start);
-                        free = xh_free_start - header_size;
+                        free = xh_free_start - header_size
+                                - OCFS2_XATTR_HEADER_GAP;
                        if (xh_free_start % blocksize < need)
                                free -= xh_free_start % blocksize;
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 0b0d236c2154..c7d4b2e606a5 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -76,6 +76,7 @@ struct drm_encoder_helper_funcs {
        void (*mode_set)(struct drm_encoder *encoder,
                         struct drm_display_mode *mode,
                         struct drm_display_mode *adjusted_mode);
+        struct drm_crtc *(*get_crtc)(struct drm_encoder *encoder);
        /* detect for DAC style encoders */
        enum drm_connector_status (*detect)(struct drm_encoder *encoder,
                                            struct drm_connector *connector);
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index c707c15f5164..ff8d27af4786 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -58,10 +58,10 @@ struct detailed_pixel_timing {
        u8 hsync_pulse_width_lo;
        u8 vsync_pulse_width_lo:4;
        u8 vsync_offset_lo:4;
-        u8 hsync_pulse_width_hi:2;
-        u8 hsync_offset_hi:2;
        u8 vsync_pulse_width_hi:2;
        u8 vsync_offset_hi:2;
+        u8 hsync_pulse_width_hi:2;
+        u8 hsync_offset_hi:2;
        u8 width_mm_lo;
        u8 height_mm_lo;
        u8 height_mm_hi:4;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index dcaa0fd84b02..465d6babc847 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -708,6 +708,8 @@ struct req_iterator {
 };
 /* This should not be used directly - use rq_for_each_segment */
+#define for_each_bio(_bio)              \
+        for (; _bio; _bio = _bio->bi_next)
 #define __rq_for_each_bio(_bio, rq)     \
        if ((rq->bio))                  \
                for (_bio = (rq)->bio; _bio; _bio = _bio->bi_next)
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 194da5a4b0d6..fe235b65207e 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -663,7 +663,7 @@ typedef struct ide_drive_s ide_drive_t;
 #define to_ide_device(dev)              container_of(dev, ide_drive_t, gendev)
 #define to_ide_drv(obj, cont_type)      \
-        container_of(obj, struct cont_type, kref)
+        container_of(obj, struct cont_type, dev)
 #define ide_drv_g(disk, cont_type)      \
        container_of((disk)->private_data, struct cont_type, driver)
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index e752d973fa21..af1de95e711e 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -147,6 +147,7 @@ extern struct cred init_cred;
                .nr_cpus_allowed = NR_CPUS,                             \
        },                                                              \
        .tasks          = LIST_HEAD_INIT(tsk.tasks),                    \
+        .pushable_tasks = PLIST_NODE_INIT(tsk.pushable_tasks, MAX_PRIO), \
        .ptraced        = LIST_HEAD_INIT(tsk.ptraced),                  \
        .ptrace_entry   = LIST_HEAD_INIT(tsk.ptrace_entry),             \
        .real_parent    = &tsk,                                         \
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index c4f6c101dbcd..d2e3cbfba14f 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -194,6 +194,7 @@ static inline void dmar_writeq(void __iomem *addr, u64 val)
 /* FSTS_REG */
 #define DMA_FSTS_PPF ((u32)2)
 #define DMA_FSTS_PFO ((u32)1)
+#define DMA_FSTS_IQE (1 << 4)
 #define dma_fsts_fault_record_index(s) (((s) >> 8) & 0xff)
 /* FRCD_REG, 32 bits access */
@@ -328,7 +329,7 @@ extern int qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr,
                          unsigned int size_order, u64 type,
                          int non_present_entry_flush);
-extern void qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu);
+extern int qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu);
 extern void *intel_alloc_coherent(struct device *, size_t, dma_addr_t *, gfp_t);
 extern void intel_free_coherent(struct device *, size_t, void *, dma_addr_t);
diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h
index 82df31726a54..cbc2f0cd631b 100644
--- a/include/linux/io-mapping.h
+++ b/include/linux/io-mapping.h
@@ -30,11 +30,14 @@
 * See Documentation/io_mapping.txt
 */
-/* this struct isn't actually defined anywhere */
-struct io_mapping;
 #ifdef CONFIG_HAVE_ATOMIC_IOMAP
+struct io_mapping {
+        resource_size_t base;
+        unsigned long size;
+        pgprot_t prot;
+};
 /*
 * For small address space machines, mapping large objects
 * into the kernel virtual space isn't practical. Where
@@ -43,23 +46,40 @@ struct io_mapping;
 */
 static inline struct io_mapping *
-io_mapping_create_wc(unsigned long base, unsigned long size)
+io_mapping_create_wc(resource_size_t base, unsigned long size)
 {
-        return (struct io_mapping *) base;
+        struct io_mapping *iomap;
+        if (!is_io_mapping_possible(base, size))
+                return NULL;
+        iomap = kmalloc(sizeof(*iomap), GFP_KERNEL);
+        if (!iomap)
+                return NULL;
+        iomap->base = base;
+        iomap->size = size;
+        iomap->prot = pgprot_writecombine(__pgprot(__PAGE_KERNEL));
+        return iomap;
 }
 static inline void
 io_mapping_free(struct io_mapping *mapping)
 {
+        kfree(mapping);
 }
 /* Atomic map/unmap */
 static inline void *
 io_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset)
 {
-        offset += (unsigned long) mapping;
+        resource_size_t phys_addr;
-        return iomap_atomic_prot_pfn(offset >> PAGE_SHIFT, KM_USER0,
+        unsigned long pfn;
-                                     __pgprot(__PAGE_KERNEL_WC));
+        BUG_ON(offset >= mapping->size);
+        phys_addr = mapping->base + offset;
+        pfn = (unsigned long) (phys_addr >> PAGE_SHIFT);
+        return iomap_atomic_prot_pfn(pfn, KM_USER0, mapping->prot);
 }
 static inline void
@@ -71,8 +91,9 @@ io_mapping_unmap_atomic(void *vaddr)
 static inline void *
 io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
 {
-        offset += (unsigned long) mapping;
+        BUG_ON(offset >= mapping->size);
-        return ioremap_wc(offset, PAGE_SIZE);
+        resource_size_t phys_addr = mapping->base + offset;
+        return ioremap_wc(phys_addr, PAGE_SIZE);
 }
 static inline void
@@ -83,9 +104,12 @@ io_mapping_unmap(void *vaddr)
 #else
+/* this struct isn't actually defined anywhere */
+struct io_mapping;
 /* Create the io_mapping object*/
 static inline struct io_mapping *
-io_mapping_create_wc(unsigned long base, unsigned long size)
+io_mapping_create_wc(resource_size_t base, unsigned long size)
 {
        return (struct io_mapping *) ioremap_wc(base, size);
 }
diff --git a/include/linux/latencytop.h b/include/linux/latencytop.h
index 901c2d6377a8..b0e99898527c 100644
--- a/include/linux/latencytop.h
+++ b/include/linux/latencytop.h
@@ -9,6 +9,7 @@
 #ifndef _INCLUDE_GUARD_LATENCYTOP_H_
 #define _INCLUDE_GUARD_LATENCYTOP_H_
+#include <linux/compiler.h>
 #ifdef CONFIG_LATENCYTOP
 #define LT_SAVECOUNT            32
@@ -24,7 +25,14 @@ struct latency_record {
 struct task_struct;
-void account_scheduler_latency(struct task_struct *task, int usecs, int inter);
+extern int latencytop_enabled;
+void __account_scheduler_latency(struct task_struct *task, int usecs, int inter);
+static inline void
+account_scheduler_latency(struct task_struct *task, int usecs, int inter)
+{
+        if (unlikely(latencytop_enabled))
+                __account_scheduler_latency(task, usecs, inter);
+}
 void clear_all_latency_tracing(struct task_struct *p);
diff --git a/include/linux/plist.h b/include/linux/plist.h
index 85de2f055874..45926d77d6ac 100644
--- a/include/linux/plist.h
+++ b/include/linux/plist.h
@@ -96,6 +96,10 @@ struct plist_node {
 # define PLIST_HEAD_LOCK_INIT(_lock)
 #endif
+#define _PLIST_HEAD_INIT(head)                          \
+        .prio_list = LIST_HEAD_INIT((head).prio_list),  \
+        .node_list = LIST_HEAD_INIT((head).node_list)
 /**
 * PLIST_HEAD_INIT - static struct plist_head initializer
 * @head:       struct plist_head variable name
@@ -103,8 +107,7 @@ struct plist_node {
 */
 #define PLIST_HEAD_INIT(head, _lock)                    \
 {                                                       \
-        .prio_list = LIST_HEAD_INIT((head).prio_list),  \
+        _PLIST_HEAD_INIT(head),                         \
-        .node_list = LIST_HEAD_INIT((head).node_list),  \
        PLIST_HEAD_LOCK_INIT(&(_lock))                  \
 }
@@ -116,7 +119,7 @@ struct plist_node {
 #define PLIST_NODE_INIT(node, __prio)                   \
 {                                                       \
        .prio  = (__prio),                              \
-        .plist = PLIST_HEAD_INIT((node).plist, NULL),   \
+        .plist = { _PLIST_HEAD_INIT((node).plist) },    \
 }
 /**
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8c216e057c94..75bf49291c60 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -998,6 +998,7 @@ struct sched_class {
                              struct rq *busiest, struct sched_domain *sd,
                              enum cpu_idle_type idle);
        void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
+        int (*needs_post_schedule) (struct rq *this_rq);
        void (*post_schedule) (struct rq *this_rq);
        void (*task_wake_up) (struct rq *this_rq, struct task_struct *task);
@@ -1052,6 +1053,10 @@ struct sched_entity {
        u64                     last_wakeup;
        u64                     avg_overlap;
+        u64                     start_runtime;
+        u64                     avg_wakeup;
+        u64                     nr_migrations;
 #ifdef CONFIG_SCHEDSTATS
        u64                     wait_start;
        u64                     wait_max;
@@ -1067,7 +1072,6 @@ struct sched_entity {
        u64                     exec_max;
        u64                     slice_max;
-        u64                     nr_migrations;
        u64                     nr_migrations_cold;
        u64                     nr_failed_migrations_affine;
        u64                     nr_failed_migrations_running;
@@ -1164,6 +1168,7 @@ struct task_struct {
 #endif
        struct list_head tasks;
+        struct plist_node pushable_tasks;
        struct mm_struct *mm, *active_mm;
@@ -1670,6 +1675,16 @@ static inline int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask)
        return set_cpus_allowed_ptr(p, &new_mask);
 }
+/*
+ * Architectures can set this to 1 if they have specified
+ * CONFIG_HAVE_UNSTABLE_SCHED_CLOCK in their arch Kconfig,
+ * but then during bootup it turns out that sched_clock()
+ * is reliable after all:
+ */
+#ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
+extern int sched_clock_stable;
+#endif
 extern unsigned long long sched_clock(void);
 extern void sched_clock_init(void);
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index 315bcd375224..cc4f45361dbb 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -13,6 +13,7 @@ struct user_namespace {
        struct kref             kref;
        struct hlist_head       uidhash_table[UIDHASH_SZ];
        struct user_struct      *creator;
+        struct work_struct      destroyer;
 };
 extern struct user_namespace init_user_ns;
diff --git a/init/Kconfig b/init/Kconfig
index f068071fcc5d..a90fcbeeb9d2 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -966,7 +966,6 @@ config SLABINFO
 config RT_MUTEXES
        boolean
-        select PLIST
 config BASE_SMALL
        int
diff --git a/kernel/latencytop.c b/kernel/latencytop.c
index 449db466bdbc..ca07c5c0c914 100644
--- a/kernel/latencytop.c
+++ b/kernel/latencytop.c
@@ -9,6 +9,44 @@
 * as published by the Free Software Foundation; version 2
 * of the License.
 */
+/*
+ * CONFIG_LATENCYTOP enables a kernel latency tracking infrastructure that is
+ * used by the "latencytop" userspace tool. The latency that is tracked is not
+ * the 'traditional' interrupt latency (which is primarily caused by something
+ * else consuming CPU), but instead, it is the latency an application encounters
+ * because the kernel sleeps on its behalf for various reasons.
+ *
+ * This code tracks 2 levels of statistics:
+ * 1) System level latency
+ * 2) Per process latency
+ *
+ * The latency is stored in fixed sized data structures in an accumulated form;
+ * if the "same" latency cause is hit twice, this will be tracked as one entry
+ * in the data structure. Both the count, total accumulated latency and maximum
+ * latency are tracked in this data structure. When the fixed size structure is
+ * full, no new causes are tracked until the buffer is flushed by writing to
+ * the /proc file; the userspace tool does this on a regular basis.
+ *
+ * A latency cause is identified by a stringified backtrace at the point that
+ * the scheduler gets invoked. The userland tool will use this string to
+ * identify the cause of the latency in human readable form.
+ *
+ * The information is exported via /proc/latency_stats and /proc/<pid>/latency.
+ * These files look like this:
+ *
+ * Latency Top version : v0.1
+ * 70 59433 4897 i915_irq_wait drm_ioctl vfs_ioctl do_vfs_ioctl sys_ioctl
+ * |    |    |    |
+ * |    |    |    +----> the stringified backtrace
+ * |    |    +---------> The maximum latency for this entry in microseconds
+ * |    +--------------> The accumulated latency for this entry (microseconds)
+ * +-------------------> The number of times this entry is hit
+ *
+ * (note: the average latency is the accumulated latency divided by the number
+ * of times)
+ */
 #include <linux/latencytop.h>
 #include <linux/kallsyms.h>
 #include <linux/seq_file.h>
@@ -72,7 +110,7 @@ account_global_scheduler_latency(struct task_struct *tsk, struct latency_record
                                firstnonnull = i;
                        continue;
                }
-                for (q = 0 ; q < LT_BACKTRACEDEPTH ; q++) {
+                for (q = 0; q < LT_BACKTRACEDEPTH; q++) {
                        unsigned long record = lat->backtrace[q];
                        if (latency_record[i].backtrace[q] != record) {
@@ -101,31 +139,52 @@ account_global_scheduler_latency(struct task_struct *tsk, struct latency_record
        memcpy(&latency_record[i], lat, sizeof(struct latency_record));
 }
-static inline void store_stacktrace(struct task_struct *tsk, struct latency_record *lat)
+/*
+ * Iterator to store a backtrace into a latency record entry
+ */
+static inline void store_stacktrace(struct task_struct *tsk,
+                                        struct latency_record *lat)
 {
        struct stack_trace trace;
        memset(&trace, 0, sizeof(trace));
        trace.max_entries = LT_BACKTRACEDEPTH;
        trace.entries = &lat->backtrace[0];
-        trace.skip = 0;
        save_stack_trace_tsk(tsk, &trace);
 }
+/**
+ * __account_scheduler_latency - record an occured latency
+ * @tsk - the task struct of the task hitting the latency
+ * @usecs - the duration of the latency in microseconds
+ * @inter - 1 if the sleep was interruptible, 0 if uninterruptible
+ *
+ * This function is the main entry point for recording latency entries
+ * as called by the scheduler.
+ *
+ * This function has a few special cases to deal with normal 'non-latency'
+ * sleeps: specifically, interruptible sleep longer than 5 msec is skipped
+ * since this usually is caused by waiting for events via select() and co.
+ *
+ * Negative latencies (caused by time going backwards) are also explicitly
+ * skipped.
+ */
 void __sched
-account_scheduler_latency(struct task_struct *tsk, int usecs, int inter)
+__account_scheduler_latency(struct task_struct *tsk, int usecs, int inter)
 {
        unsigned long flags;
        int i, q;
        struct latency_record lat;
-        if (!latencytop_enabled)
-                return;
        /* Long interruptible waits are generally user requested... */
        if (inter && usecs > 5000)
                return;
+        /* Negative sleeps are time going backwards */
+        /* Zero-time sleeps are non-interesting */
+        if (usecs <= 0)
+                return;
        memset(&lat, 0, sizeof(lat));
        lat.count = 1;
        lat.time = usecs;
@@ -143,12 +202,12 @@ account_scheduler_latency(struct task_struct *tsk, int usecs, int inter)
        if (tsk->latency_record_count >= LT_SAVECOUNT)
                goto out_unlock;
-        for (i = 0; i < LT_SAVECOUNT ; i++) {
+        for (i = 0; i < LT_SAVECOUNT; i++) {
                struct latency_record *mylat;
                int same = 1;
                mylat = &tsk->latency_record[i];
-                for (q = 0 ; q < LT_BACKTRACEDEPTH ; q++) {
+                for (q = 0; q < LT_BACKTRACEDEPTH; q++) {
                        unsigned long record = lat.backtrace[q];
                        if (mylat->backtrace[q] != record) {
@@ -186,7 +245,7 @@ static int lstats_show(struct seq_file *m, void *v)
        for (i = 0; i < MAXLR; i++) {
                if (latency_record[i].backtrace[0]) {
                        int q;
-                        seq_printf(m, "%i %li %li ",
+                        seq_printf(m, "%i %lu %lu ",
                                latency_record[i].count,
                                latency_record[i].time,
                                latency_record[i].max);
@@ -223,7 +282,7 @@ static int lstats_open(struct inode *inode, struct file *filp)
        return single_open(filp, lstats_show, NULL);
 }
-static struct file_operations lstats_fops = {
+static const struct file_operations lstats_fops = {
        .open           = lstats_open,
        .read           = seq_read,
        .write          = lstats_write,
@@ -236,4 +295,4 @@ static int __init init_lstats_procfs(void)
        proc_create("latency_stats", 0644, NULL, &lstats_fops);
        return 0;
 }
-__initcall(init_lstats_procfs);
+device_initcall(init_lstats_procfs);
diff --git a/kernel/sched.c b/kernel/sched.c
index 8e2558c2ba67..dfae1bf6d5b2 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -467,11 +467,17 @@ struct rt_rq {
        struct rt_prio_array active;
        unsigned long rt_nr_running;
 #if defined CONFIG_SMP || defined CONFIG_RT_GROUP_SCHED
-        int highest_prio; /* highest queued rt task prio */
+        struct {
+                int curr; /* highest queued rt task prio */
+#ifdef CONFIG_SMP
+                int next; /* next highest */
+#endif
+        } highest_prio;
 #endif
 #ifdef CONFIG_SMP
        unsigned long rt_nr_migratory;
        int overloaded;
+        struct plist_head pushable_tasks;
 #endif
        int rt_throttled;
        u64 rt_time;
@@ -549,7 +555,6 @@ struct rq {
        unsigned long nr_running;
        #define CPU_LOAD_IDX_MAX 5
        unsigned long cpu_load[CPU_LOAD_IDX_MAX];
-        unsigned char idle_at_tick;
 #ifdef CONFIG_NO_HZ
        unsigned long last_tick_seen;
        unsigned char in_nohz_recently;
@@ -590,6 +595,7 @@ struct rq {
        struct root_domain *rd;
        struct sched_domain *sd;
+        unsigned char idle_at_tick;
        /* For active balancing */
        int active_balance;
        int push_cpu;
@@ -1610,21 +1616,42 @@ static inline void update_shares_locked(struct rq *rq, struct sched_domain *sd)
 #endif
+#ifdef CONFIG_PREEMPT
 /*
- * double_lock_balance - lock the busiest runqueue, this_rq is locked already.
+ * fair double_lock_balance: Safely acquires both rq->locks in a fair
+ * way at the expense of forcing extra atomic operations in all
+ * invocations.  This assures that the double_lock is acquired using the
+ * same underlying policy as the spinlock_t on this architecture, which
+ * reduces latency compared to the unfair variant below.  However, it
+ * also adds more overhead and therefore may reduce throughput.
 */
-static int double_lock_balance(struct rq *this_rq, struct rq *busiest)
+static inline int _double_lock_balance(struct rq *this_rq, struct rq *busiest)
+        __releases(this_rq->lock)
+        __acquires(busiest->lock)
+        __acquires(this_rq->lock)
+{
+        spin_unlock(&this_rq->lock);
+        double_rq_lock(this_rq, busiest);
+        return 1;
+}
+#else
+/*
+ * Unfair double_lock_balance: Optimizes throughput at the expense of
+ * latency by eliminating extra atomic operations when the locks are
+ * already in proper order on entry.  This favors lower cpu-ids and will
+ * grant the double lock to lower cpus over higher ids under contention,
+ * regardless of entry order into the function.
+ */
+static int _double_lock_balance(struct rq *this_rq, struct rq *busiest)
        __releases(this_rq->lock)
        __acquires(busiest->lock)
        __acquires(this_rq->lock)
 {
        int ret = 0;
-        if (unlikely(!irqs_disabled())) {
-                /* printk() doesn't work good under rq->lock */
-                spin_unlock(&this_rq->lock);
-                BUG_ON(1);
-        }
        if (unlikely(!spin_trylock(&busiest->lock))) {
                if (busiest < this_rq) {
                        spin_unlock(&this_rq->lock);
@@ -1637,6 +1664,22 @@ static int double_lock_balance(struct rq *this_rq, struct rq *busiest)
        return ret;
 }
+#endif /* CONFIG_PREEMPT */
+/*
+ * double_lock_balance - lock the busiest runqueue, this_rq is locked already.
+ */
+static int double_lock_balance(struct rq *this_rq, struct rq *busiest)
+{
+        if (unlikely(!irqs_disabled())) {
+                /* printk() doesn't work good under rq->lock */
+                spin_unlock(&this_rq->lock);
+                BUG_ON(1);
+        }
+        return _double_lock_balance(this_rq, busiest);
+}
 static inline void double_unlock_balance(struct rq *this_rq, struct rq *busiest)
        __releases(busiest->lock)
 {
@@ -1705,6 +1748,9 @@ static void update_avg(u64 *avg, u64 sample)
 static void enqueue_task(struct rq *rq, struct task_struct *p, int wakeup)
 {
+        if (wakeup)
+                p->se.start_runtime = p->se.sum_exec_runtime;
        sched_info_queued(p);
        p->sched_class->enqueue_task(rq, p, wakeup);
        p->se.on_rq = 1;
@@ -1712,10 +1758,15 @@ static void enqueue_task(struct rq *rq, struct task_struct *p, int wakeup)
 static void dequeue_task(struct rq *rq, struct task_struct *p, int sleep)
 {
-        if (sleep && p->se.last_wakeup) {
+        if (sleep) {
-                update_avg(&p->se.avg_overlap,
+                if (p->se.last_wakeup) {
-                           p->se.sum_exec_runtime - p->se.last_wakeup);
+                        update_avg(&p->se.avg_overlap,
-                p->se.last_wakeup = 0;
+                                p->se.sum_exec_runtime - p->se.last_wakeup);
+                        p->se.last_wakeup = 0;
+                } else {
+                        update_avg(&p->se.avg_wakeup,
+                                sysctl_sched_wakeup_granularity);
+                }
        }
        sched_info_dequeued(p);
@@ -2345,6 +2396,22 @@ out_activate:
        activate_task(rq, p, 1);
        success = 1;
+        /*
+         * Only attribute actual wakeups done by this task.
+         */
+        if (!in_interrupt()) {
+                struct sched_entity *se = &current->se;
+                u64 sample = se->sum_exec_runtime;
+                if (se->last_wakeup)
+                        sample -= se->last_wakeup;
+                else
+                        sample -= se->start_runtime;
+                update_avg(&se->avg_wakeup, sample);
+                se->last_wakeup = se->sum_exec_runtime;
+        }
 out_running:
        trace_sched_wakeup(rq, p, success);
        check_preempt_curr(rq, p, sync);
@@ -2355,8 +2422,6 @@ out_running:
                p->sched_class->task_wake_up(rq, p);
 #endif
 out:
-        current->se.last_wakeup = current->se.sum_exec_runtime;
        task_rq_unlock(rq, &flags);
        return success;
@@ -2386,6 +2451,8 @@ static void __sched_fork(struct task_struct *p)
        p->se.prev_sum_exec_runtime     = 0;
        p->se.last_wakeup               = 0;
        p->se.avg_overlap               = 0;
+        p->se.start_runtime             = 0;
+        p->se.avg_wakeup                = sysctl_sched_wakeup_granularity;
 #ifdef CONFIG_SCHEDSTATS
        p->se.wait_start                = 0;
@@ -2448,6 +2515,8 @@ void sched_fork(struct task_struct *p, int clone_flags)
        /* Want to start with kernel preemption disabled. */
        task_thread_info(p)->preempt_count = 1;
 #endif
+        plist_node_init(&p->pushable_tasks, MAX_PRIO);
        put_cpu();
 }
@@ -2588,6 +2657,12 @@ static void finish_task_switch(struct rq *rq, struct task_struct *prev)
 {
        struct mm_struct *mm = rq->prev_mm;
        long prev_state;
+#ifdef CONFIG_SMP
+        int post_schedule = 0;
+        if (current->sched_class->needs_post_schedule)
+                post_schedule = current->sched_class->needs_post_schedule(rq);
+#endif
        rq->prev_mm = NULL;
@@ -2606,7 +2681,7 @@ static void finish_task_switch(struct rq *rq, struct task_struct *prev)
        finish_arch_switch(prev);
        finish_lock_switch(rq, prev);
 #ifdef CONFIG_SMP
-        if (current->sched_class->post_schedule)
+        if (post_schedule)
                current->sched_class->post_schedule(rq);
 #endif
@@ -2987,6 +3062,16 @@ next:
        pulled++;
        rem_load_move -= p->se.load.weight;
+#ifdef CONFIG_PREEMPT
+        /*
+         * NEWIDLE balancing is a source of latency, so preemptible kernels
+         * will stop after the first task is pulled to minimize the critical
+         * section.
+         */
+        if (idle == CPU_NEWLY_IDLE)
+                goto out;
+#endif
        /*
         * We only want to steal up to the prescribed amount of weighted load.
         */
@@ -3033,9 +3118,15 @@ static int move_tasks(struct rq *this_rq, int this_cpu, struct rq *busiest,
                                sd, idle, all_pinned, &this_best_prio);
                class = class->next;
+#ifdef CONFIG_PREEMPT
+                /*
+                 * NEWIDLE balancing is a source of latency, so preemptible
+                 * kernels will stop after the first task is pulled to minimize
+                 * the critical section.
+                 */
                if (idle == CPU_NEWLY_IDLE && this_rq->nr_running)
                        break;
+#endif
        } while (class && max_load_move > total_load_moved);
        return total_load_moved > 0;
@@ -5145,7 +5236,7 @@ SYSCALL_DEFINE1(nice, int, increment)
        if (increment > 40)
                increment = 40;
-        nice = PRIO_TO_NICE(current->static_prio) + increment;
+        nice = TASK_NICE(current) + increment;
        if (nice < -20)
                nice = -20;
        if (nice > 19)
@@ -8218,11 +8309,15 @@ static void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq)
        __set_bit(MAX_RT_PRIO, array->bitmap);
 #if defined CONFIG_SMP || defined CONFIG_RT_GROUP_SCHED
-        rt_rq->highest_prio = MAX_RT_PRIO;
+        rt_rq->highest_prio.curr = MAX_RT_PRIO;
+#ifdef CONFIG_SMP
+        rt_rq->highest_prio.next = MAX_RT_PRIO;
+#endif
 #endif
 #ifdef CONFIG_SMP
        rt_rq->rt_nr_migratory = 0;
        rt_rq->overloaded = 0;
+        plist_head_init(&rq->rt.pushable_tasks, &rq->lock);
 #endif
        rt_rq->rt_time = 0;
@@ -9598,7 +9693,7 @@ static void cpuacct_charge(struct task_struct *tsk, u64 cputime)
        struct cpuacct *ca;
        int cpu;
-        if (!cpuacct_subsys.active)
+        if (unlikely(!cpuacct_subsys.active))
                return;
        cpu = task_cpu(tsk);
diff --git a/kernel/sched_clock.c b/kernel/sched_clock.c
index a0b0852414cc..390f33234bd0 100644
--- a/kernel/sched_clock.c
+++ b/kernel/sched_clock.c
@@ -24,11 +24,11 @@
 * The clock: sched_clock_cpu() is monotonic per cpu, and should be somewhat
 * consistent between cpus (never more than 2 jiffies difference).
 */
-#include <linux/sched.h>
-#include <linux/percpu.h>
 #include <linux/spinlock.h>
-#include <linux/ktime.h>
 #include <linux/module.h>
+#include <linux/percpu.h>
+#include <linux/ktime.h>
+#include <linux/sched.h>
 /*
 * Scheduler clock - returns current time in nanosec units.
@@ -43,6 +43,7 @@ unsigned long long __attribute__((weak)) sched_clock(void)
 static __read_mostly int sched_clock_running;
 #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
+__read_mostly int sched_clock_stable;
 struct sched_clock_data {
        /*
@@ -87,7 +88,7 @@ void sched_clock_init(void)
 }
 /*
- * min,max except they take wrapping into account
+ * min, max except they take wrapping into account
 */
 static inline u64 wrap_min(u64 x, u64 y)
@@ -111,15 +112,13 @@ static u64 __update_sched_clock(struct sched_clock_data *scd, u64 now)
        s64 delta = now - scd->tick_raw;
        u64 clock, min_clock, max_clock;
-        WARN_ON_ONCE(!irqs_disabled());
        if (unlikely(delta < 0))
                delta = 0;
        /*
         * scd->clock = clamp(scd->tick_gtod + delta,
-         *                    max(scd->tick_gtod, scd->clock),
+         *                    max(scd->tick_gtod, scd->clock),
-         *                    scd->tick_gtod + TICK_NSEC);
+         *                    scd->tick_gtod + TICK_NSEC);
         */
        clock = scd->tick_gtod + delta;
@@ -148,12 +147,13 @@ static void lock_double_clock(struct sched_clock_data *data1,
 u64 sched_clock_cpu(int cpu)
 {
-        struct sched_clock_data *scd = cpu_sdc(cpu);
        u64 now, clock, this_clock, remote_clock;
+        struct sched_clock_data *scd;
-        if (unlikely(!sched_clock_running))
+        if (sched_clock_stable)
-                return 0ull;
+                return sched_clock();
+        scd = cpu_sdc(cpu);
        WARN_ON_ONCE(!irqs_disabled());
        now = sched_clock();
@@ -195,14 +195,18 @@ u64 sched_clock_cpu(int cpu)
 void sched_clock_tick(void)
 {
-        struct sched_clock_data *scd = this_scd();
+        struct sched_clock_data *scd;
        u64 now, now_gtod;
+        if (sched_clock_stable)
+                return;
        if (unlikely(!sched_clock_running))
                return;
        WARN_ON_ONCE(!irqs_disabled());
+        scd = this_scd();
        now_gtod = ktime_to_ns(ktime_get());
        now = sched_clock();
@@ -250,7 +254,7 @@ u64 sched_clock_cpu(int cpu)
        return sched_clock();
 }
-#endif
+#endif /* CONFIG_HAVE_UNSTABLE_SCHED_CLOCK */
 unsigned long long cpu_clock(int cpu)
 {
diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index 16eeba4e4169..2b1260f0e800 100644
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -397,6 +397,7 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
        PN(se.vruntime);
        PN(se.sum_exec_runtime);
        PN(se.avg_overlap);
+        PN(se.avg_wakeup);
        nr_switches = p->nvcsw + p->nivcsw;
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 0566f2a03c42..3816f217f119 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -1314,16 +1314,63 @@ out:
 }
 #endif /* CONFIG_SMP */
-static unsigned long wakeup_gran(struct sched_entity *se)
+/*
+ * Adaptive granularity
+ *
+ * se->avg_wakeup gives the average time a task runs until it does a wakeup,
+ * with the limit of wakeup_gran -- when it never does a wakeup.
+ *
+ * So the smaller avg_wakeup is the faster we want this task to preempt,
+ * but we don't want to treat the preemptee unfairly and therefore allow it
+ * to run for at least the amount of time we'd like to run.
+ *
+ * NOTE: we use 2*avg_wakeup to increase the probability of actually doing one
+ *
+ * NOTE: we use *nr_running to scale with load, this nicely matches the
+ *       degrading latency on load.
+ */
+static unsigned long
+adaptive_gran(struct sched_entity *curr, struct sched_entity *se)
+{
+        u64 this_run = curr->sum_exec_runtime - curr->prev_sum_exec_runtime;
+        u64 expected_wakeup = 2*se->avg_wakeup * cfs_rq_of(se)->nr_running;
+        u64 gran = 0;
+        if (this_run < expected_wakeup)
+                gran = expected_wakeup - this_run;
+        return min_t(s64, gran, sysctl_sched_wakeup_granularity);
+}
+static unsigned long
+wakeup_gran(struct sched_entity *curr, struct sched_entity *se)
 {
        unsigned long gran = sysctl_sched_wakeup_granularity;
+        if (cfs_rq_of(curr)->curr && sched_feat(ADAPTIVE_GRAN))
+                gran = adaptive_gran(curr, se);
        /*
-         * More easily preempt - nice tasks, while not making it harder for
+         * Since its curr running now, convert the gran from real-time
-         * + nice tasks.
+         * to virtual-time in his units.
         */
-        if (!sched_feat(ASYM_GRAN) || se->load.weight > NICE_0_LOAD)
+        if (sched_feat(ASYM_GRAN)) {
-                gran = calc_delta_fair(sysctl_sched_wakeup_granularity, se);
+                /*
+                 * By using 'se' instead of 'curr' we penalize light tasks, so
+                 * they get preempted easier. That is, if 'se' < 'curr' then
+                 * the resulting gran will be larger, therefore penalizing the
+                 * lighter, if otoh 'se' > 'curr' then the resulting gran will
+                 * be smaller, again penalizing the lighter task.
+                 *
+                 * This is especially important for buddies when the leftmost
+                 * task is higher priority than the buddy.
+                 */
+                if (unlikely(se->load.weight != NICE_0_LOAD))
+                        gran = calc_delta_fair(gran, se);
+        } else {
+                if (unlikely(curr->load.weight != NICE_0_LOAD))
+                        gran = calc_delta_fair(gran, curr);
+        }
        return gran;
 }
@@ -1350,7 +1397,7 @@ wakeup_preempt_entity(struct sched_entity *curr, struct sched_entity *se)
        if (vdiff <= 0)
                return -1;
-        gran = wakeup_gran(curr);
+        gran = wakeup_gran(curr, se);
        if (vdiff > gran)
                return 1;
diff --git a/kernel/sched_features.h b/kernel/sched_features.h
index da5d93b5d2c6..76f61756e677 100644
--- a/kernel/sched_features.h
+++ b/kernel/sched_features.h
@@ -1,5 +1,6 @@
 SCHED_FEAT(NEW_FAIR_SLEEPERS, 1)
-SCHED_FEAT(NORMALIZED_SLEEPER, 1)
+SCHED_FEAT(NORMALIZED_SLEEPER, 0)
+SCHED_FEAT(ADAPTIVE_GRAN, 1)
 SCHED_FEAT(WAKEUP_PREEMPT, 1)
 SCHED_FEAT(START_DEBIT, 1)
 SCHED_FEAT(AFFINE_WAKEUPS, 1)
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index bac1061cea2f..c79dc7844012 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -3,6 +3,40 @@
 * policies)
 */
+static inline struct task_struct *rt_task_of(struct sched_rt_entity *rt_se)
+{
+        return container_of(rt_se, struct task_struct, rt);
+}
+#ifdef CONFIG_RT_GROUP_SCHED
+static inline struct rq *rq_of_rt_rq(struct rt_rq *rt_rq)
+{
+        return rt_rq->rq;
+}
+static inline struct rt_rq *rt_rq_of_se(struct sched_rt_entity *rt_se)
+{
+        return rt_se->rt_rq;
+}
+#else /* CONFIG_RT_GROUP_SCHED */
+static inline struct rq *rq_of_rt_rq(struct rt_rq *rt_rq)
+{
+        return container_of(rt_rq, struct rq, rt);
+}
+static inline struct rt_rq *rt_rq_of_se(struct sched_rt_entity *rt_se)
+{
+        struct task_struct *p = rt_task_of(rt_se);
+        struct rq *rq = task_rq(p);
+        return &rq->rt;
+}
+#endif /* CONFIG_RT_GROUP_SCHED */
 #ifdef CONFIG_SMP
 static inline int rt_overloaded(struct rq *rq)
@@ -37,25 +71,69 @@ static inline void rt_clear_overload(struct rq *rq)
        cpumask_clear_cpu(rq->cpu, rq->rd->rto_mask);
 }
-static void update_rt_migration(struct rq *rq)
+static void update_rt_migration(struct rt_rq *rt_rq)
 {
-        if (rq->rt.rt_nr_migratory && (rq->rt.rt_nr_running > 1)) {
+        if (rt_rq->rt_nr_migratory && (rt_rq->rt_nr_running > 1)) {
-                if (!rq->rt.overloaded) {
+                if (!rt_rq->overloaded) {
-                        rt_set_overload(rq);
+                        rt_set_overload(rq_of_rt_rq(rt_rq));
-                        rq->rt.overloaded = 1;
+                        rt_rq->overloaded = 1;
                }
-        } else if (rq->rt.overloaded) {
+        } else if (rt_rq->overloaded) {
-                rt_clear_overload(rq);
+                rt_clear_overload(rq_of_rt_rq(rt_rq));
-                rq->rt.overloaded = 0;
+                rt_rq->overloaded = 0;
        }
 }
-#endif /* CONFIG_SMP */
-static inline struct task_struct *rt_task_of(struct sched_rt_entity *rt_se)
+static void inc_rt_migration(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+{
+        if (rt_se->nr_cpus_allowed > 1)
+                rt_rq->rt_nr_migratory++;
+        update_rt_migration(rt_rq);
+}
+static void dec_rt_migration(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+{
+        if (rt_se->nr_cpus_allowed > 1)
+                rt_rq->rt_nr_migratory--;
+        update_rt_migration(rt_rq);
+}
+static void enqueue_pushable_task(struct rq *rq, struct task_struct *p)
+{
+        plist_del(&p->pushable_tasks, &rq->rt.pushable_tasks);
+        plist_node_init(&p->pushable_tasks, p->prio);
+        plist_add(&p->pushable_tasks, &rq->rt.pushable_tasks);
+}
+static void dequeue_pushable_task(struct rq *rq, struct task_struct *p)
+{
+        plist_del(&p->pushable_tasks, &rq->rt.pushable_tasks);
+}
+#else
+static inline void enqueue_pushable_task(struct rq *rq, struct task_struct *p)
 {
-        return container_of(rt_se, struct task_struct, rt);
 }
+static inline void dequeue_pushable_task(struct rq *rq, struct task_struct *p)
+{
+}
+static inline
+void inc_rt_migration(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+{
+}
+static inline
+void dec_rt_migration(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+{
+}
+#endif /* CONFIG_SMP */
 static inline int on_rt_rq(struct sched_rt_entity *rt_se)
 {
        return !list_empty(&rt_se->run_list);
@@ -79,16 +157,6 @@ static inline u64 sched_rt_period(struct rt_rq *rt_rq)
 #define for_each_leaf_rt_rq(rt_rq, rq) \
        list_for_each_entry_rcu(rt_rq, &rq->leaf_rt_rq_list, leaf_rt_rq_list)
-static inline struct rq *rq_of_rt_rq(struct rt_rq *rt_rq)
-{
-        return rt_rq->rq;
-}
-static inline struct rt_rq *rt_rq_of_se(struct sched_rt_entity *rt_se)
-{
-        return rt_se->rt_rq;
-}
 #define for_each_sched_rt_entity(rt_se) \
        for (; rt_se; rt_se = rt_se->parent)
@@ -108,7 +176,7 @@ static void sched_rt_rq_enqueue(struct rt_rq *rt_rq)
        if (rt_rq->rt_nr_running) {
                if (rt_se && !on_rt_rq(rt_se))
                        enqueue_rt_entity(rt_se);
-                if (rt_rq->highest_prio < curr->prio)
+                if (rt_rq->highest_prio.curr < curr->prio)
                        resched_task(curr);
        }
 }
@@ -176,19 +244,6 @@ static inline u64 sched_rt_period(struct rt_rq *rt_rq)
 #define for_each_leaf_rt_rq(rt_rq, rq) \
        for (rt_rq = &rq->rt; rt_rq; rt_rq = NULL)
-static inline struct rq *rq_of_rt_rq(struct rt_rq *rt_rq)
-{
-        return container_of(rt_rq, struct rq, rt);
-}
-static inline struct rt_rq *rt_rq_of_se(struct sched_rt_entity *rt_se)
-{
-        struct task_struct *p = rt_task_of(rt_se);
-        struct rq *rq = task_rq(p);
-        return &rq->rt;
-}
 #define for_each_sched_rt_entity(rt_se) \
        for (; rt_se; rt_se = NULL)
@@ -473,7 +528,7 @@ static inline int rt_se_prio(struct sched_rt_entity *rt_se)
        struct rt_rq *rt_rq = group_rt_rq(rt_se);
        if (rt_rq)
-                return rt_rq->highest_prio;
+                return rt_rq->highest_prio.curr;
 #endif
        return rt_task_of(rt_se)->prio;
@@ -547,91 +602,174 @@ static void update_curr_rt(struct rq *rq)
        }
 }
-static inline
+#if defined CONFIG_SMP
-void inc_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+static struct task_struct *pick_next_highest_task_rt(struct rq *rq, int cpu);
+static inline int next_prio(struct rq *rq)
 {
-        WARN_ON(!rt_prio(rt_se_prio(rt_se)));
+        struct task_struct *next = pick_next_highest_task_rt(rq, rq->cpu);
-        rt_rq->rt_nr_running++;
-#if defined CONFIG_SMP || defined CONFIG_RT_GROUP_SCHED
+        if (next && rt_prio(next->prio))
-        if (rt_se_prio(rt_se) < rt_rq->highest_prio) {
+                return next->prio;
-#ifdef CONFIG_SMP
+        else
-                struct rq *rq = rq_of_rt_rq(rt_rq);
+                return MAX_RT_PRIO;
-#endif
+}
+static void
+inc_rt_prio_smp(struct rt_rq *rt_rq, int prio, int prev_prio)
+{
+        struct rq *rq = rq_of_rt_rq(rt_rq);
+        if (prio < prev_prio) {
+                /*
+                 * If the new task is higher in priority than anything on the
+                 * run-queue, we know that the previous high becomes our
+                 * next-highest.
+                 */
+                rt_rq->highest_prio.next = prev_prio;
-                rt_rq->highest_prio = rt_se_prio(rt_se);
-#ifdef CONFIG_SMP
                if (rq->online)
-                        cpupri_set(&rq->rd->cpupri, rq->cpu,
+                        cpupri_set(&rq->rd->cpupri, rq->cpu, prio);
-                                   rt_se_prio(rt_se));
-#endif
-        }
-#endif
-#ifdef CONFIG_SMP
-        if (rt_se->nr_cpus_allowed > 1) {
-                struct rq *rq = rq_of_rt_rq(rt_rq);
-                rq->rt.rt_nr_migratory++;
+        } else if (prio == rt_rq->highest_prio.curr)
-        }
+                /*
+                 * If the next task is equal in priority to the highest on
+                 * the run-queue, then we implicitly know that the next highest
+                 * task cannot be any lower than current
+                 */
+                rt_rq->highest_prio.next = prio;
+        else if (prio < rt_rq->highest_prio.next)
+                /*
+                 * Otherwise, we need to recompute next-highest
+                 */
+                rt_rq->highest_prio.next = next_prio(rq);
+}
-        update_rt_migration(rq_of_rt_rq(rt_rq));
+static void
-#endif
+dec_rt_prio_smp(struct rt_rq *rt_rq, int prio, int prev_prio)
-#ifdef CONFIG_RT_GROUP_SCHED
+{
-        if (rt_se_boosted(rt_se))
+        struct rq *rq = rq_of_rt_rq(rt_rq);
-                rt_rq->rt_nr_boosted++;
-        if (rt_rq->tg)
+        if (rt_rq->rt_nr_running && (prio <= rt_rq->highest_prio.next))
-                start_rt_bandwidth(&rt_rq->tg->rt_bandwidth);
+                rt_rq->highest_prio.next = next_prio(rq);
-#else
-        start_rt_bandwidth(&def_rt_bandwidth);
+        if (rq->online && rt_rq->highest_prio.curr != prev_prio)
-#endif
+                cpupri_set(&rq->rd->cpupri, rq->cpu, rt_rq->highest_prio.curr);
 }
+#else /* CONFIG_SMP */
 static inline
-void dec_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+void inc_rt_prio_smp(struct rt_rq *rt_rq, int prio, int prev_prio) {}
-{
+static inline
-#ifdef CONFIG_SMP
+void dec_rt_prio_smp(struct rt_rq *rt_rq, int prio, int prev_prio) {}
-        int highest_prio = rt_rq->highest_prio;
-#endif
+#endif /* CONFIG_SMP */
-        WARN_ON(!rt_prio(rt_se_prio(rt_se)));
-        WARN_ON(!rt_rq->rt_nr_running);
-        rt_rq->rt_nr_running--;
 #if defined CONFIG_SMP || defined CONFIG_RT_GROUP_SCHED
+static void
+inc_rt_prio(struct rt_rq *rt_rq, int prio)
+{
+        int prev_prio = rt_rq->highest_prio.curr;
+        if (prio < prev_prio)
+                rt_rq->highest_prio.curr = prio;
+        inc_rt_prio_smp(rt_rq, prio, prev_prio);
+}
+static void
+dec_rt_prio(struct rt_rq *rt_rq, int prio)
+{
+        int prev_prio = rt_rq->highest_prio.curr;
        if (rt_rq->rt_nr_running) {
-                struct rt_prio_array *array;
-                WARN_ON(rt_se_prio(rt_se) < rt_rq->highest_prio);
+                WARN_ON(prio < prev_prio);
-                if (rt_se_prio(rt_se) == rt_rq->highest_prio) {
-                        /* recalculate */
+                /*
-                        array = &rt_rq->active;
+                 * This may have been our highest task, and therefore
-                        rt_rq->highest_prio =
+                 * we may have some recomputation to do
+                 */
+                if (prio == prev_prio) {
+                        struct rt_prio_array *array = &rt_rq->active;
+                        rt_rq->highest_prio.curr =
                                sched_find_first_bit(array->bitmap);
-                } /* otherwise leave rq->highest prio alone */
+                }
        } else
-                rt_rq->highest_prio = MAX_RT_PRIO;
+                rt_rq->highest_prio.curr = MAX_RT_PRIO;
-#endif
-#ifdef CONFIG_SMP
-        if (rt_se->nr_cpus_allowed > 1) {
-                struct rq *rq = rq_of_rt_rq(rt_rq);
-                rq->rt.rt_nr_migratory--;
-        }
-        if (rt_rq->highest_prio != highest_prio) {
+        dec_rt_prio_smp(rt_rq, prio, prev_prio);
-                struct rq *rq = rq_of_rt_rq(rt_rq);
+}
-                if (rq->online)
+#else
-                        cpupri_set(&rq->rd->cpupri, rq->cpu,
-                                   rt_rq->highest_prio);
+static inline void inc_rt_prio(struct rt_rq *rt_rq, int prio) {}
-        }
+static inline void dec_rt_prio(struct rt_rq *rt_rq, int prio) {}
+#endif /* CONFIG_SMP || CONFIG_RT_GROUP_SCHED */
-        update_rt_migration(rq_of_rt_rq(rt_rq));
-#endif /* CONFIG_SMP */
 #ifdef CONFIG_RT_GROUP_SCHED
+static void
+inc_rt_group(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+{
+        if (rt_se_boosted(rt_se))
+                rt_rq->rt_nr_boosted++;
+        if (rt_rq->tg)
+                start_rt_bandwidth(&rt_rq->tg->rt_bandwidth);
+}
+static void
+dec_rt_group(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+{
        if (rt_se_boosted(rt_se))
                rt_rq->rt_nr_boosted--;
        WARN_ON(!rt_rq->rt_nr_running && rt_rq->rt_nr_boosted);
-#endif
+}
+#else /* CONFIG_RT_GROUP_SCHED */
+static void
+inc_rt_group(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+{
+        start_rt_bandwidth(&def_rt_bandwidth);
+}
+static inline
+void dec_rt_group(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq) {}
+#endif /* CONFIG_RT_GROUP_SCHED */
+static inline
+void inc_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+{
+        int prio = rt_se_prio(rt_se);
+        WARN_ON(!rt_prio(prio));
+        rt_rq->rt_nr_running++;
+        inc_rt_prio(rt_rq, prio);
+        inc_rt_migration(rt_se, rt_rq);
+        inc_rt_group(rt_se, rt_rq);
+}
+static inline
+void dec_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+{
+        WARN_ON(!rt_prio(rt_se_prio(rt_se)));
+        WARN_ON(!rt_rq->rt_nr_running);
+        rt_rq->rt_nr_running--;
+        dec_rt_prio(rt_rq, rt_se_prio(rt_se));
+        dec_rt_migration(rt_se, rt_rq);
+        dec_rt_group(rt_se, rt_rq);
 }
 static void __enqueue_rt_entity(struct sched_rt_entity *rt_se)
@@ -718,6 +856,9 @@ static void enqueue_task_rt(struct rq *rq, struct task_struct *p, int wakeup)
        enqueue_rt_entity(rt_se);
+        if (!task_current(rq, p) && p->rt.nr_cpus_allowed > 1)
+                enqueue_pushable_task(rq, p);
        inc_cpu_load(rq, p->se.load.weight);
 }
@@ -728,6 +869,8 @@ static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep)
        update_curr_rt(rq);
        dequeue_rt_entity(rt_se);
+        dequeue_pushable_task(rq, p);
        dec_cpu_load(rq, p->se.load.weight);
 }
@@ -878,7 +1021,7 @@ static struct sched_rt_entity *pick_next_rt_entity(struct rq *rq,
        return next;
 }
-static struct task_struct *pick_next_task_rt(struct rq *rq)
+static struct task_struct *_pick_next_task_rt(struct rq *rq)
 {
        struct sched_rt_entity *rt_se;
        struct task_struct *p;
@@ -900,6 +1043,18 @@ static struct task_struct *pick_next_task_rt(struct rq *rq)
        p = rt_task_of(rt_se);
        p->se.exec_start = rq->clock;
+        return p;
+}
+static struct task_struct *pick_next_task_rt(struct rq *rq)
+{
+        struct task_struct *p = _pick_next_task_rt(rq);
+        /* The running task is never eligible for pushing */
+        if (p)
+                dequeue_pushable_task(rq, p);
        return p;
 }
@@ -907,6 +1062,13 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p)
 {
        update_curr_rt(rq);
        p->se.exec_start = 0;
+        /*
+         * The previous task needs to be made eligible for pushing
+         * if it is still active
+         */
+        if (p->se.on_rq && p->rt.nr_cpus_allowed > 1)
+                enqueue_pushable_task(rq, p);
 }
 #ifdef CONFIG_SMP
@@ -1072,7 +1234,7 @@ static struct rq *find_lock_lowest_rq(struct task_struct *task, struct rq *rq)
                }
                /* If this rq is still suitable use it. */
-                if (lowest_rq->rt.highest_prio > task->prio)
+                if (lowest_rq->rt.highest_prio.curr > task->prio)
                        break;
                /* try again */
@@ -1083,6 +1245,31 @@ static struct rq *find_lock_lowest_rq(struct task_struct *task, struct rq *rq)
        return lowest_rq;
 }
+static inline int has_pushable_tasks(struct rq *rq)
+{
+        return !plist_head_empty(&rq->rt.pushable_tasks);
+}
+static struct task_struct *pick_next_pushable_task(struct rq *rq)
+{
+        struct task_struct *p;
+        if (!has_pushable_tasks(rq))
+                return NULL;
+        p = plist_first_entry(&rq->rt.pushable_tasks,
+                              struct task_struct, pushable_tasks);
+        BUG_ON(rq->cpu != task_cpu(p));
+        BUG_ON(task_current(rq, p));
+        BUG_ON(p->rt.nr_cpus_allowed <= 1);
+        BUG_ON(!p->se.on_rq);
+        BUG_ON(!rt_task(p));
+        return p;
+}
 /*
 * If the current CPU has more than one RT task, see if the non
 * running task can migrate over to a CPU that is running a task
@@ -1092,13 +1279,11 @@ static int push_rt_task(struct rq *rq)
 {
        struct task_struct *next_task;
        struct rq *lowest_rq;
-        int ret = 0;
-        int paranoid = RT_MAX_TRIES;
        if (!rq->rt.overloaded)
                return 0;
-        next_task = pick_next_highest_task_rt(rq, -1);
+        next_task = pick_next_pushable_task(rq);
        if (!next_task)
                return 0;
@@ -1127,16 +1312,34 @@ static int push_rt_task(struct rq *rq)
                struct task_struct *task;
                /*
                 * find lock_lowest_rq releases rq->lock
-                 * so it is possible that next_task has changed.
+                 * so it is possible that next_task has migrated.
-                 * If it has, then try again.
+                 *
+                 * We need to make sure that the task is still on the same
+                 * run-queue and is also still the next task eligible for
+                 * pushing.
                 */
-                task = pick_next_highest_task_rt(rq, -1);
+                task = pick_next_pushable_task(rq);
-                if (unlikely(task != next_task) && task && paranoid--) {
+                if (task_cpu(next_task) == rq->cpu && task == next_task) {
-                        put_task_struct(next_task);
+                        /*
-                        next_task = task;
+                         * If we get here, the task hasnt moved at all, but
-                        goto retry;
+                         * it has failed to push.  We will not try again,
+                         * since the other cpus will pull from us when they
+                         * are ready.
+                         */
+                        dequeue_pushable_task(rq, next_task);
+                        goto out;
                }
-                goto out;
+                if (!task)
+                        /* No more tasks, just exit */
+                        goto out;
+                /*
+                 * Something has shifted, try again.
+                 */
+                put_task_struct(next_task);
+                next_task = task;
+                goto retry;
        }
        deactivate_task(rq, next_task, 0);
@@ -1147,23 +1350,12 @@ static int push_rt_task(struct rq *rq)
        double_unlock_balance(rq, lowest_rq);
-        ret = 1;
 out:
        put_task_struct(next_task);
-        return ret;
+        return 1;
 }
-/*
- * TODO: Currently we just use the second highest prio task on
- *       the queue, and stop when it can't migrate (or there's
- *       no more RT tasks).  There may be a case where a lower
- *       priority RT task has a different affinity than the
- *       higher RT task. In this case the lower RT task could
- *       possibly be able to migrate where as the higher priority
- *       RT task could not.  We currently ignore this issue.
- *       Enhancements are welcome!
- */
 static void push_rt_tasks(struct rq *rq)
 {
        /* push_rt_task will return true if it moved an RT */
@@ -1174,33 +1366,35 @@ static void push_rt_tasks(struct rq *rq)
 static int pull_rt_task(struct rq *this_rq)
 {
        int this_cpu = this_rq->cpu, ret = 0, cpu;
-        struct task_struct *p, *next;
+        struct task_struct *p;
        struct rq *src_rq;
        if (likely(!rt_overloaded(this_rq)))
                return 0;
-        next = pick_next_task_rt(this_rq);
        for_each_cpu(cpu, this_rq->rd->rto_mask) {
                if (this_cpu == cpu)
                        continue;
                src_rq = cpu_rq(cpu);
+                /*
+                 * Don't bother taking the src_rq->lock if the next highest
+                 * task is known to be lower-priority than our current task.
+                 * This may look racy, but if this value is about to go
+                 * logically higher, the src_rq will push this task away.
+                 * And if its going logically lower, we do not care
+                 */
+                if (src_rq->rt.highest_prio.next >=
+                    this_rq->rt.highest_prio.curr)
+                        continue;
                /*
                 * We can potentially drop this_rq's lock in
                 * double_lock_balance, and another CPU could
-                 * steal our next task - hence we must cause
+                 * alter this_rq
-                 * the caller to recalculate the next task
-                 * in that case:
                 */
-                if (double_lock_balance(this_rq, src_rq)) {
+                double_lock_balance(this_rq, src_rq);
-                        struct task_struct *old_next = next;
-                        next = pick_next_task_rt(this_rq);
-                        if (next != old_next)
-                                ret = 1;
-                }
                /*
                 * Are there still pullable RT tasks?
@@ -1214,7 +1408,7 @@ static int pull_rt_task(struct rq *this_rq)
                 * Do we have an RT task that preempts
                 * the to-be-scheduled task?
                 */
-                if (p && (!next || (p->prio < next->prio))) {
+                if (p && (p->prio < this_rq->rt.highest_prio.curr)) {
                        WARN_ON(p == src_rq->curr);
                        WARN_ON(!p->se.on_rq);
@@ -1224,12 +1418,9 @@ static int pull_rt_task(struct rq *this_rq)
                         * This is just that p is wakeing up and hasn't
                         * had a chance to schedule. We only pull
                         * p if it is lower in priority than the
-                         * current task on the run queue or
+                         * current task on the run queue
-                         * this_rq next task is lower in prio than
-                         * the current task on that rq.
                         */
-                        if (p->prio < src_rq->curr->prio ||
+                        if (p->prio < src_rq->curr->prio)
-                            (next && next->prio < src_rq->curr->prio))
                                goto skip;
                        ret = 1;
@@ -1242,13 +1433,7 @@ static int pull_rt_task(struct rq *this_rq)
                         * case there's an even higher prio task
                         * in another runqueue. (low likelyhood
                         * but possible)
-                         *
-                         * Update next so that we won't pick a task
-                         * on another cpu with a priority lower (or equal)
-                         * than the one we just picked.
                         */
-                        next = p;
                }
 skip:
                double_unlock_balance(this_rq, src_rq);
@@ -1260,24 +1445,27 @@ static int pull_rt_task(struct rq *this_rq)
 static void pre_schedule_rt(struct rq *rq, struct task_struct *prev)
 {
        /* Try to pull RT tasks here if we lower this rq's prio */
-        if (unlikely(rt_task(prev)) && rq->rt.highest_prio > prev->prio)
+        if (unlikely(rt_task(prev)) && rq->rt.highest_prio.curr > prev->prio)
                pull_rt_task(rq);
 }
+/*
+ * assumes rq->lock is held
+ */
+static int needs_post_schedule_rt(struct rq *rq)
+{
+        return has_pushable_tasks(rq);
+}
 static void post_schedule_rt(struct rq *rq)
 {
        /*
-         * If we have more than one rt_task queued, then
+         * This is only called if needs_post_schedule_rt() indicates that
-         * see if we can push the other rt_tasks off to other CPUS.
+         * we need to push tasks away
-         * Note we may release the rq lock, and since
-         * the lock was owned by prev, we need to release it
-         * first via finish_lock_switch and then reaquire it here.
         */
-        if (unlikely(rq->rt.overloaded)) {
+        spin_lock_irq(&rq->lock);
-                spin_lock_irq(&rq->lock);
+        push_rt_tasks(rq);
-                push_rt_tasks(rq);
+        spin_unlock_irq(&rq->lock);
-                spin_unlock_irq(&rq->lock);
-        }
 }
 /*
@@ -1288,7 +1476,8 @@ static void task_wake_up_rt(struct rq *rq, struct task_struct *p)
 {
        if (!task_running(rq, p) &&
            !test_tsk_need_resched(rq->curr) &&
-            rq->rt.overloaded)
+            has_pushable_tasks(rq) &&
+            p->rt.nr_cpus_allowed > 1)
                push_rt_tasks(rq);
 }
@@ -1324,6 +1513,24 @@ static void set_cpus_allowed_rt(struct task_struct *p,
        if (p->se.on_rq && (weight != p->rt.nr_cpus_allowed)) {
                struct rq *rq = task_rq(p);
+                if (!task_current(rq, p)) {
+                        /*
+                         * Make sure we dequeue this task from the pushable list
+                         * before going further.  It will either remain off of
+                         * the list because we are no longer pushable, or it
+                         * will be requeued.
+                         */
+                        if (p->rt.nr_cpus_allowed > 1)
+                                dequeue_pushable_task(rq, p);
+                        /*
+                         * Requeue if our weight is changing and still > 1
+                         */
+                        if (weight > 1)
+                                enqueue_pushable_task(rq, p);
+                }
                if ((p->rt.nr_cpus_allowed <= 1) && (weight > 1)) {
                        rq->rt.rt_nr_migratory++;
                } else if ((p->rt.nr_cpus_allowed > 1) && (weight <= 1)) {
@@ -1331,7 +1538,7 @@ static void set_cpus_allowed_rt(struct task_struct *p,
                        rq->rt.rt_nr_migratory--;
                }
-                update_rt_migration(rq);
+                update_rt_migration(&rq->rt);
        }
        cpumask_copy(&p->cpus_allowed, new_mask);
@@ -1346,7 +1553,7 @@ static void rq_online_rt(struct rq *rq)
        __enable_runtime(rq);
-        cpupri_set(&rq->rd->cpupri, rq->cpu, rq->rt.highest_prio);
+        cpupri_set(&rq->rd->cpupri, rq->cpu, rq->rt.highest_prio.curr);
 }
 /* Assumes rq->lock is held */
@@ -1438,7 +1645,7 @@ static void prio_changed_rt(struct rq *rq, struct task_struct *p,
                 * can release the rq lock and p could migrate.
                 * Only reschedule if p is still on the same runqueue.
                 */
-                if (p->prio > rq->rt.highest_prio && rq->curr == p)
+                if (p->prio > rq->rt.highest_prio.curr && rq->curr == p)
                        resched_task(p);
 #else
                /* For UP simply resched on drop of prio */
@@ -1509,6 +1716,9 @@ static void set_curr_task_rt(struct rq *rq)
        struct task_struct *p = rq->curr;
        p->se.exec_start = rq->clock;
+        /* The running task is never eligible for pushing */
+        dequeue_pushable_task(rq, p);
 }
 static const struct sched_class rt_sched_class = {
@@ -1531,6 +1741,7 @@ static const struct sched_class rt_sched_class = {
        .rq_online              = rq_online_rt,
        .rq_offline             = rq_offline_rt,
        .pre_schedule           = pre_schedule_rt,
+        .needs_post_schedule    = needs_post_schedule_rt,
        .post_schedule          = post_schedule_rt,
        .task_wake_up           = task_wake_up_rt,
        .switched_from          = switched_from_rt,
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 79084311ee57..076c7c8215b0 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -60,12 +60,25 @@ int create_user_ns(struct cred *new)
        return 0;
 }
-void free_user_ns(struct kref *kref)
+/*
+ * Deferred destructor for a user namespace.  This is required because
+ * free_user_ns() may be called with uidhash_lock held, but we need to call
+ * back to free_uid() which will want to take the lock again.
+ */
+static void free_user_ns_work(struct work_struct *work)
 {
-        struct user_namespace *ns;
+        struct user_namespace *ns =
+                container_of(work, struct user_namespace, destroyer);
-        ns = container_of(kref, struct user_namespace, kref);
        free_uid(ns->creator);
        kfree(ns);
 }
+void free_user_ns(struct kref *kref)
+{
+        struct user_namespace *ns =
+                container_of(kref, struct user_namespace, kref);
+        INIT_WORK(&ns->destroyer, free_user_ns_work);
+        schedule_work(&ns->destroyer);
+}
 EXPORT_SYMBOL(free_user_ns);
diff --git a/lib/Kconfig b/lib/Kconfig
index 03c2c24b9083..fc8ea1ca59d8 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -136,12 +136,6 @@ config TEXTSEARCH_BM
 config TEXTSEARCH_FSM
        tristate
-#
-# plist support is select#ed if needed
-#
-config PLIST
-        boolean
 config HAS_IOMEM
        boolean
        depends on !NO_IOMEM
diff --git a/lib/Makefile b/lib/Makefile
index 32b0e64ded27..902d73851044 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -11,7 +11,8 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
         rbtree.o radix-tree.o dump_stack.o \
         idr.o int_sqrt.o extable.o prio_tree.o \
         sha1.o irq_regs.o reciprocal_div.o argv_split.o \
-         proportions.o prio_heap.o ratelimit.o show_mem.o is_single_threaded.o
+         proportions.o prio_heap.o ratelimit.o show_mem.o \
+         is_single_threaded.o plist.o
 lib-$(CONFIG_MMU) += ioremap.o
 lib-$(CONFIG_SMP) += cpumask.o
@@ -40,7 +41,6 @@ lib-$(CONFIG_GENERIC_FIND_NEXT_BIT) += find_next_bit.o
 lib-$(CONFIG_GENERIC_FIND_LAST_BIT) += find_last_bit.o
 obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
 obj-$(CONFIG_LOCK_KERNEL) += kernel_lock.o
-obj-$(CONFIG_PLIST) += plist.o
 obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
 obj-$(CONFIG_DEBUG_LIST) += list_debug.o
 obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
diff --git a/mm/shmem.c b/mm/shmem.c
index 19d566ccdeea..4103a239ce84 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -169,13 +169,13 @@ static inline struct shmem_sb_info *SHMEM_SB(struct super_block *sb)
 */
 static inline int shmem_acct_size(unsigned long flags, loff_t size)
 {
-        return (flags & VM_ACCOUNT) ?
+        return (flags & VM_NORESERVE) ?
-                security_vm_enough_memory_kern(VM_ACCT(size)) : 0;
+                0 : security_vm_enough_memory_kern(VM_ACCT(size));
 }
 static inline void shmem_unacct_size(unsigned long flags, loff_t size)
 {
-        if (flags & VM_ACCOUNT)
+        if (!(flags & VM_NORESERVE))
                vm_unacct_memory(VM_ACCT(size));
 }
@@ -187,13 +187,13 @@ static inline void shmem_unacct_size(unsigned long flags, loff_t size)
 */
 static inline int shmem_acct_block(unsigned long flags)
 {
-        return (flags & VM_ACCOUNT) ?
+        return (flags & VM_NORESERVE) ?
-                0 : security_vm_enough_memory_kern(VM_ACCT(PAGE_CACHE_SIZE));
+                security_vm_enough_memory_kern(VM_ACCT(PAGE_CACHE_SIZE)) : 0;
 }
 static inline void shmem_unacct_blocks(unsigned long flags, long pages)
 {
-        if (!(flags & VM_ACCOUNT))
+        if (flags & VM_NORESERVE)
                vm_unacct_memory(pages * VM_ACCT(PAGE_CACHE_SIZE));
 }
@@ -1515,8 +1515,8 @@ static int shmem_mmap(struct file *file, struct vm_area_struct *vma)
        return 0;
 }
-static struct inode *
+static struct inode *shmem_get_inode(struct super_block *sb, int mode,
-shmem_get_inode(struct super_block *sb, int mode, dev_t dev)
+                                        dev_t dev, unsigned long flags)
 {
        struct inode *inode;
        struct shmem_inode_info *info;
@@ -1537,6 +1537,7 @@ shmem_get_inode(struct super_block *sb, int mode, dev_t dev)
                info = SHMEM_I(inode);
                memset(info, 0, (char *)inode - (char *)info);
                spin_lock_init(&info->lock);
+                info->flags = flags & VM_NORESERVE;
                INIT_LIST_HEAD(&info->swaplist);
                switch (mode & S_IFMT) {
@@ -1779,9 +1780,10 @@ static int shmem_statfs(struct dentry *dentry, struct kstatfs *buf)
 static int
 shmem_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 {
-        struct inode *inode = shmem_get_inode(dir->i_sb, mode, dev);
+        struct inode *inode;
        int error = -ENOSPC;
+        inode = shmem_get_inode(dir->i_sb, mode, dev, VM_NORESERVE);
        if (inode) {
                error = security_inode_init_security(inode, dir, NULL, NULL,
                                                     NULL);
@@ -1920,7 +1922,7 @@ static int shmem_symlink(struct inode *dir, struct dentry *dentry, const char *s
        if (len > PAGE_CACHE_SIZE)
                return -ENAMETOOLONG;
-        inode = shmem_get_inode(dir->i_sb, S_IFLNK|S_IRWXUGO, 0);
+        inode = shmem_get_inode(dir->i_sb, S_IFLNK|S_IRWXUGO, 0, VM_NORESERVE);
        if (!inode)
                return -ENOSPC;
@@ -2332,7 +2334,7 @@ static int shmem_fill_super(struct super_block *sb,
        sb->s_flags |= MS_POSIXACL;
 #endif
-        inode = shmem_get_inode(sb, S_IFDIR | sbinfo->mode, 0);
+        inode = shmem_get_inode(sb, S_IFDIR | sbinfo->mode, 0, VM_NORESERVE);
        if (!inode)
                goto failed;
        inode->i_uid = sbinfo->uid;
@@ -2574,12 +2576,12 @@ int shmem_unuse(swp_entry_t entry, struct page *page)
        return 0;
 }
-#define shmem_file_operations ramfs_file_operations
+#define shmem_vm_ops                            generic_file_vm_ops
-#define shmem_vm_ops generic_file_vm_ops
+#define shmem_file_operations                   ramfs_file_operations
-#define shmem_get_inode ramfs_get_inode
+#define shmem_get_inode(sb, mode, dev, flags)   ramfs_get_inode(sb, mode, dev)
-#define shmem_acct_size(a, b) 0
+#define shmem_acct_size(flags, size)            0
-#define shmem_unacct_size(a, b) do {} while (0)
+#define shmem_unacct_size(flags, size)          do {} while (0)
-#define SHMEM_MAX_BYTES LLONG_MAX
+#define SHMEM_MAX_BYTES                         LLONG_MAX
 #endif /* CONFIG_SHMEM */
@@ -2589,7 +2591,7 @@ int shmem_unuse(swp_entry_t entry, struct page *page)
 * shmem_file_setup - get an unlinked file living in tmpfs
 * @name: name for dentry (to be seen in /proc/<pid>/maps
 * @size: size to be set for the file
- * @flags: vm_flags
+ * @flags: VM_NORESERVE suppresses pre-accounting of the entire object size
 */
 struct file *shmem_file_setup(char *name, loff_t size, unsigned long flags)
 {
@@ -2623,13 +2625,10 @@ struct file *shmem_file_setup(char *name, loff_t size, unsigned long flags)
                goto put_dentry;
        error = -ENOSPC;
-        inode = shmem_get_inode(root->d_sb, S_IFREG | S_IRWXUGO, 0);
+        inode = shmem_get_inode(root->d_sb, S_IFREG | S_IRWXUGO, 0, flags);
        if (!inode)
                goto close_file;
-#ifdef CONFIG_SHMEM
-        SHMEM_I(inode)->flags = (flags & VM_NORESERVE) ? 0 : VM_ACCOUNT;
-#endif
        d_instantiate(dentry, inode);
        inode->i_size = size;
        inode->i_nlink = 0;     /* It is unlinked */
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 903cad46e796..520a75980269 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -323,6 +323,7 @@ static struct vmap_area *alloc_vmap_area(unsigned long size,
        unsigned long addr;
        int purged = 0;
+        BUG_ON(!size);
        BUG_ON(size & ~PAGE_MASK);
        va = kmalloc_node(sizeof(struct vmap_area),
@@ -334,6 +335,9 @@ retry:
        addr = ALIGN(vstart, align);
        spin_lock(&vmap_area_lock);
+        if (addr + size - 1 < addr)
+                goto overflow;
        /* XXX: could have a last_hole cache */
        n = vmap_area_root.rb_node;
        if (n) {
@@ -365,6 +369,8 @@ retry:
                while (addr + size > first->va_start && addr + size <= vend) {
                        addr = ALIGN(first->va_end + PAGE_SIZE, align);
+                        if (addr + size - 1 < addr)
+                                goto overflow;
                        n = rb_next(&first->rb_node);
                        if (n)
@@ -375,6 +381,7 @@ retry:
        }
 found:
        if (addr + size > vend) {
+overflow:
                spin_unlock(&vmap_area_lock);
                if (!purged) {
                        purge_vmap_area_lazy();
@@ -498,6 +505,7 @@ static void __purge_vmap_area_lazy(unsigned long *start, unsigned long *end,
        static DEFINE_SPINLOCK(purge_lock);
        LIST_HEAD(valist);
        struct vmap_area *va;
+        struct vmap_area *n_va;
        int nr = 0;
        /*
@@ -537,7 +545,7 @@ static void __purge_vmap_area_lazy(unsigned long *start, unsigned long *end,
        if (nr) {
                spin_lock(&vmap_area_lock);
-                list_for_each_entry(va, &valist, purge_list)
+                list_for_each_entry_safe(va, n_va, &valist, purge_list)
                        __free_vmap_area(va);
                spin_unlock(&vmap_area_lock);
        }
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 45eb0ae98eba..2d5ece798c4c 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -10,7 +10,7 @@ use strict;
 my $P = $0;
 $P =~ s@.*/@@g;
-my $V = '0.27';
+my $V = '0.28';
 use Getopt::Long qw(:config no_auto_abbrev);
@@ -110,7 +110,8 @@ our $Sparse	= qr{
                        __iomem|
                        __must_check|
                        __init_refok|
-                        __kprobes
+                        __kprobes|
+                        __ref
                }x;
 our $Attribute  = qr{
                        const|
@@ -1240,7 +1241,8 @@ sub process {
                        $realfile =~ s@^([^/]*)/@@;
                        $p1_prefix = $1;
-                        if ($tree && $p1_prefix ne '' && -e "$root/$p1_prefix") {
+                        if (!$file && $tree && $p1_prefix ne '' &&
+                            -e "$root/$p1_prefix") {
                                WARN("patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");
                        }
@@ -1583,9 +1585,9 @@ sub process {
                }
 # TEST: allow direct testing of the attribute matcher.
                if ($dbg_attr) {
-                        if ($line =~ /^.\s*$Attribute\s*$/) {
+                        if ($line =~ /^.\s*$Modifier\s*$/) {
                                ERROR("TEST: is attr\n" . $herecurr);
-                        } elsif ($dbg_attr > 1 && $line =~ /^.+($Attribute)/) {
+                        } elsif ($dbg_attr > 1 && $line =~ /^.+($Modifier)/) {
                                ERROR("TEST: is not attr ($1 is)\n". $herecurr);
                        }
                        next;
@@ -1657,7 +1659,7 @@ sub process {
 # * goes on variable not on type
                # (char*[ const])
-                if ($line =~ m{\($NonptrType(\s*\*[\s\*]*(?:$Modifier\s*)*)\)}) {
+                if ($line =~ m{\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\)}) {
                        my ($from, $to) = ($1, $1);
                        # Should start with a space.
@@ -1672,7 +1674,7 @@ sub process {
                        if ($from ne $to) {
                                ERROR("\"(foo$from)\" should be \"(foo$to)\"\n" .  $herecurr);
                        }
-                } elsif ($line =~ m{\b$NonptrType(\s*\*[\s\*]*(?:$Modifier\s*)?)($Ident)}) {
+                } elsif ($line =~ m{\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident)}) {
                        my ($from, $to, $ident) = ($1, $1, $2);
                        # Should start with a space.
@@ -1685,8 +1687,8 @@ sub process {
                        # Modifiers should have spaces.
                        $to =~ s/(\b$Modifier$)/$1 /;
-                        #print "from<$from> to<$to>\n";
+                        #print "from<$from> to<$to> ident<$ident>\n";
-                        if ($from ne $to) {
+                        if ($from ne $to && $ident !~ /^$Modifier$/) {
                                ERROR("\"foo${from}bar\" should be \"foo${to}bar\"\n" .  $herecurr);
                        }
                }
@@ -1885,11 +1887,11 @@ sub process {
                                        if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
                                                ERROR("space required before that '$op' $at\n" . $hereptr);
                                        }
-                                        if ($op eq '*' && $cc =~/\s*const\b/) {
+                                        if ($op eq '*' && $cc =~/\s*$Modifier\b/) {
                                                # A unary '*' may be const
                                        } elsif ($ctx =~ /.xW/) {
-                                                ERROR("space prohibited after that '$op' $at\n" . $hereptr);
+                                                ERROR("Aspace prohibited after that '$op' $at\n" . $hereptr);
                                        }
                                # unary ++ and unary -- are allowed no space on one side.
@@ -2560,7 +2562,7 @@ sub process {
                if ($line =~ /\bin_atomic\s*\(/) {
                        if ($realfile =~ m@^drivers/@) {
                                ERROR("do not use in_atomic in drivers\n" . $herecurr);
-                        } else {
+                        } elsif ($realfile !~ m@^kernel/@) {
                                WARN("use of in_atomic() is incorrect outside core kernel code\n" . $herecurr);
                        }
                }
diff --git a/sound/core/oss/rate.c b/sound/core/oss/rate.c
index a466443c4a26..2fa9299a440d 100644
--- a/sound/core/oss/rate.c
+++ b/sound/core/oss/rate.c
@@ -157,7 +157,7 @@ static void resample_shrink(struct snd_pcm_plugin *plugin,
                while (dst_frames1 > 0) {
                        S1 = S2;
                        if (src_frames1-- > 0) {
-                                S1 = *src;
+                                S2 = *src;
                                src += src_step;
                        }
                        if (pos & ~R_MASK) {
diff --git a/sound/pci/aw2/aw2-alsa.c b/sound/pci/aw2/aw2-alsa.c
index 3f00ddf450f8..c7c54e7748e9 100644
--- a/sound/pci/aw2/aw2-alsa.c
+++ b/sound/pci/aw2/aw2-alsa.c
@@ -165,7 +165,7 @@ module_param_array(enable, bool, NULL, 0444);
 MODULE_PARM_DESC(enable, "Enable Audiowerk2 soundcard.");
 static struct pci_device_id snd_aw2_ids[] = {
-        {PCI_VENDOR_ID_SAA7146, PCI_DEVICE_ID_SAA7146, PCI_ANY_ID, PCI_ANY_ID,
+        {PCI_VENDOR_ID_SAA7146, PCI_DEVICE_ID_SAA7146, 0, 0,
         0, 0, 0},
        {0}
 };
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index 7958006a1d66..101a1c13a20d 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -1528,6 +1528,7 @@ static struct snd_emu_chip_details emu_chip_details[] = {
         .ca0151_chip = 1,
         .spk71 = 1,
         .spdif_bug = 1,
+         .invert_shared_spdif = 1,      /* digital/analog switch swapped */
         .ac97_chip = 1} ,
        {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x10021102,
         .driver = "Audigy2", .name = "SB Audigy 2 Platinum [SB0240P]",
diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c
index 482fb0304ca9..4ae51dcb81af 100644
--- a/sound/pci/hda/hda_hwdep.c
+++ b/sound/pci/hda/hda_hwdep.c
@@ -277,18 +277,19 @@ static ssize_t init_verbs_store(struct device *dev,
 {
        struct snd_hwdep *hwdep = dev_get_drvdata(dev);
        struct hda_codec *codec = hwdep->private_data;
-        char *p;
+        struct hda_verb *v;
-        struct hda_verb verb, *v;
+        int nid, verb, param;
-        verb.nid = simple_strtoul(buf, &p, 0);
+        if (sscanf(buf, "%i %i %i", &nid, &verb, &param) != 3)
-        verb.verb = simple_strtoul(p, &p, 0);
+                return -EINVAL;
-        verb.param = simple_strtoul(p, &p, 0);
+        if (!nid || !verb)
-        if (!verb.nid || !verb.verb || !verb.param)
                return -EINVAL;
        v = snd_array_new(&codec->init_verbs);
        if (!v)
                return -ENOMEM;
-        *v = verb;
+        v->nid = nid;
+        v->verb = verb;
+        v->param = param;
        return count;
 }
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index ed8fcbd60003..a680be0d4534 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -7017,6 +7017,7 @@ static int patch_alc882(struct hda_codec *codec)
                case 0x106b3e00: /* iMac 24 Aluminium */
                        board_config = ALC885_IMAC24;
                        break;
+                case 0x106b00a0: /* MacBookPro3,1 - Another revision */
                case 0x106b00a1: /* Macbook (might be wrong - PCI SSID?) */
                case 0x106b00a4: /* MacbookPro4,1 */
                case 0x106b2c00: /* Macbook Pro rev3 */
@@ -8469,6 +8470,8 @@ static struct snd_pci_quirk alc883_cfg_tbl[] = {
                ALC888_ACER_ASPIRE_4930G),
        SND_PCI_QUIRK(0x1025, 0x015e, "Acer Aspire 6930G",
                ALC888_ACER_ASPIRE_4930G),
+        SND_PCI_QUIRK(0x1025, 0x0166, "Acer Aspire 6530G",
+                ALC888_ACER_ASPIRE_4930G),
        SND_PCI_QUIRK(0x1025, 0, "Acer laptop", ALC883_ACER), /* default Acer */
        SND_PCI_QUIRK(0x1028, 0x020d, "Dell Inspiron 530", ALC888_6ST_DELL),
        SND_PCI_QUIRK(0x103c, 0x2a3d, "HP Pavillion", ALC883_6ST_DIG),
diff --git a/sound/pci/pcxhr/pcxhr.h b/sound/pci/pcxhr/pcxhr.h
index 84131a916c92..69d87dee6995 100644
--- a/sound/pci/pcxhr/pcxhr.h
+++ b/sound/pci/pcxhr/pcxhr.h
@@ -97,12 +97,12 @@ struct pcxhr_mgr {
        int capture_chips;
        int fw_file_set;
        int firmware_num;
-        int is_hr_stereo:1;
+        unsigned int is_hr_stereo:1;
-        int board_has_aes1:1;   /* if 1 board has AES1 plug and SRC */
+        unsigned int board_has_aes1:1;  /* if 1 board has AES1 plug and SRC */
-        int board_has_analog:1; /* if 0 the board is digital only */
+        unsigned int board_has_analog:1; /* if 0 the board is digital only */
-        int board_has_mic:1;    /* if 1 the board has microphone input */
+        unsigned int board_has_mic:1; /* if 1 the board has microphone input */
-        int board_aes_in_192k:1;/* if 1 the aes input plugs do support 192kHz */
+        unsigned int board_aes_in_192k:1;/* if 1 the aes input plugs do support 192kHz */
-        int mono_capture:1;     /* if 1 the board does mono capture */
+        unsigned int mono_capture:1; /* if 1 the board does mono capture */
        struct snd_dma_buffer hostport;