Граф коммитов

494490 Коммитов

Автор SHA1 Сообщение Дата
Wolfram Sang b074cf80a7 macintosh: therm_pm72: delete deprecated driver
The new driver is around for more than 2 years now, so the old one can
go. Getting rid of it helps the removal of the legacy .attach_adapter
callback of the I2C subsystem.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-12-19 19:32:47 +01:00
Rafael J. Wysocki 71504e519d tty: 8250_omap: Replace CONFIG_PM_RUNTIME with CONFIG_PM
The 8250_omap serial driver is a new user of CONFIG_PM_RUNTIME.

However, after commit b2b49ccbdd (PM: Kconfig: Set PM_RUNTIME if
PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so
#ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to
depend on CONFIG_PM.

Replace CONFIG_PM_RUNTIME with CONFIG_PM in 8250_omap.c.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-12-19 15:27:58 +01:00
Rafael J. Wysocki 45544c884e sound: sst-haswell-pcm: Replace CONFIG_PM_RUNTIME with CONFIG_PM
The sst-haswell-pcm driver is a new user of CONFIG_PM_RUNTIME.

However, after commit b2b49ccbdd (PM: Kconfig: Set PM_RUNTIME if
PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so
#ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to
depend on CONFIG_PM.

Replace CONFIG_PM_RUNTIME with CONFIG_PM in
sound/soc/intel/sst-haswell-pcm.c.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
2014-12-19 15:26:46 +01:00
Rafael J. Wysocki 47164fdb3b spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
A couple of new CONFIG_PM_RUNTIME users have been added recently
in the SPI subsystem.

However, after commit b2b49ccbdd (PM: Kconfig: Set PM_RUNTIME if
PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so
#ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to
depend on CONFIG_PM.

Replace CONFIG_PM_RUNTIME with CONFIG_PM everywhere under
drivers/spi/ (again).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
2014-12-19 15:25:31 +01:00
Thomas Gleixner a5fd9733a3 tick/powerclamp: Remove tick_nohz_idle abuse
commit 4dbd27711c "tick: export nohz tick idle symbols for module
use" was merged via the thermal tree without an explicit ack from the
relevant maintainers.

The exports are abused by the intel powerclamp driver which implements
a fake idle state from a sched FIFO task. This causes all kinds of
wreckage in the NOHZ core code which rightfully assumes that
tick_nohz_idle_enter/exit() are only called from the idle task itself.

Recent changes in the NOHZ core lead to a failure of the powerclamp
driver and now people try to hack completely broken and backwards
workarounds into the NOHZ core code. This is completely unacceptable
and just papers over the real problem. There are way more subtle
issues lurking around the corner.

The real solution is to fix the powerclamp driver by rewriting it with
a sane concept, but that's beyond the scope of this.

So the only solution for now is to remove the calls into the core NOHZ
code from the powerclamp trainwreck along with the exports. 

Fixes: d6d71ee4a1 "PM: Introduce Intel PowerClamp Driver"
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Pan Jacob jun <jacob.jun.pan@intel.com>
Cc: LKP <lkp@01.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1412181110110.17382@nanos
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-19 14:05:52 +01:00
Al Viro e3bb504efd [regression] chunk lost from bd9b51
Reported-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-12-19 07:13:21 -05:00
Wang Nan ac931f87a6 perf: Fix building warning on ARM 32
Commit 85c116a6cb ("perf callchain: Make get_srcline fall back to sym+offset")
introduces asprintf() call and matches '%ld' to a u64 argument, which is
incorrect on ARM:

   CC       /home/wn/util/srcline.o
 util/srcline.c: In function 'get_srcline':
 util/srcline.c:297:6: error: format '%ld' expects argument of type 'long int', but argument 4 has type 'u64' [-Werror=format]
 cc1: all warnings being treated as errors
 make[1]: *** [/home/wn/util/srcline.o] Error 1

In addition, all users of get_srcline() use u64 addr, and libbfd
also use 64 bit bfd_vma as address. This patch also fix
prototype of get_srcline() and addr2line() to use u64 addr
instead of unsigned long.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: <lizefan@huawei.com>
Cc: <a.p.zijlstra@chello.nl>
Cc: <paulus@samba.org>
Cc: <acme@kernel.org>
Cc: <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1418710746-35943-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-12-19 13:09:43 +01:00
Linus Torvalds d790be3863 The exciting thing here is the getting rid of stop_machine on module
removal.  This is possible by using a simple atomic_t for the counter,
 rather than our fancy per-cpu counter: it turns out that no one is doing
 a module increment per net packet, so the slowdown should be in the noise.
 
 Also, script fixed for new git version.
 
 Cheers,
 Rusty.
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Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull module updates from Rusty Russell:
 "The exciting thing here is the getting rid of stop_machine on module
  removal.  This is possible by using a simple atomic_t for the counter,
  rather than our fancy per-cpu counter: it turns out that no one is
  doing a module increment per net packet, so the slowdown should be in
  the noise"

* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  param: do not set store func without write perm
  params: cleanup sysfs allocation
  kernel:module Fix coding style errors and warnings.
  module: Remove stop_machine from module unloading
  module: Replace module_ref with atomic_t refcnt
  lib/bug: Use RCU list ops for module_bug_list
  module: Unlink module with RCU synchronizing instead of stop_machine
  module: Wait for RCU synchronizing before releasing a module
2014-12-18 20:55:41 -08:00
Linus Torvalds 64ec45bff6 vhost/virtio: virtio 1.0 related fixes
Most importantly, this fixes using virtio_pci as a module.
 
 Further, the big virtio 1.0 conversion missed a couple of places. This fixes
 them up.
 
 This isn't 100% sparse-clean yet because on many architectures get_user
 triggers sparse warnings when used with __bitwise tag (when same tag is on both
 pointer and value read).
 
 I posted a patchset to fix it up by adding __force on all
 arches that don't already have it (many do), when that's
 merged these warnings will go away.
 
 Cc: Rusty Russell <rusty@rustcorp.com.au>
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fixes from Michael S Tsirkin:
 "virtio 1.0 related fixes

  Most importantly, this fixes using virtio_pci as a module.

  Further, the big virtio 1.0 conversion missed a couple of places.
  This fixes them up.

  This isn't 100% sparse-clean yet because on many architectures
  get_user triggers sparse warnings when used with __bitwise tag (when
  same tag is on both pointer and value read).

  I posted a patchset to fix it up by adding __force on all arches that
  don't already have it (many do), when that's merged these warnings
  will go away"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio_pci: restore module attributes
  mic/host: fix up virtio 1.0 APIs
  vringh: update for virtio 1.0 APIs
  vringh: 64 bit features
  tools/virtio: add virtio 1.0 in vringh_test
  tools/virtio: add virtio 1.0 in virtio_test
  tools/virtio: enable -Werror
  tools/virtio: 64 bit features
  tools/virtio: fix vringh test
  tools/virtio: more stubs
  virtio: core support for config generation
  virtio_pci: add VIRTIO_PCI_NO_LEGACY
  virtio_pci: move probe to common file
  virtio_pci_common.h: drop VIRTIO_PCI_NO_LEGACY
  virtio_config: fix virtio_cread_bytes
  virtio: set VIRTIO_CONFIG_S_FEATURES_OK on restore
2014-12-18 20:50:30 -08:00
Linus Torvalds c0f486fde3 More ACPI and power management updates for 3.19-rc1
- Fix a regression in leds-gpio introduced by a recent commit that
    inadvertently changed the name of one of the properties used by
    the driver (Fabio Estevam).
 
  - Fix a regression in the ACPI backlight driver introduced by a
    recent fix that missed one special case that had to be taken
    into account (Aaron Lu).
 
  - Drop the level of some new kernel messages from the ACPI core
    introduced by a recent commit to KERN_DEBUG which they should
    have used from the start and drop some other unuseful KERN_ERR
    messages printed by ACPI (Rafael J Wysocki).
 
  - Revert an incorrect commit modifying the cpupower tool
    (Prarit Bhargava).
 
  - Fix two regressions introduced by recent commits in the OPP
    library and clean up some existing minor issues in that code
    (Viresh Kumar).
 
  - Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout
    the tree (or drop it where that can be done) in order to make
    it possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki,
    Ulf Hansson, Ludovic Desroches).  There will be one more
    "CONFIG_PM_RUNTIME removal" batch after this one, because some
    new uses of it have been introduced during the current merge
    window, but that should be sufficient to finally get rid of it.
 
  - Make the ACPI EC driver more robust against race conditions
    related to GPE handler installation failures (Lv Zheng).
 
  - Prevent the ACPI device PM core code from attempting to
    disable GPEs that it has not enabled which confuses ACPICA
    and makes it report errors unnecessarily (Rafael J Wysocki).
 
  - Add a "force" command line switch to the intel_pstate driver
    to make it possible to override the blacklisting of some
    systems in that driver if needed (Ethan Zhao).
 
  - Improve intel_pstate code documentation and add a MAINTAINERS
    entry for it (Kristen Carlson Accardi).
 
  - Make the ACPI fan driver create cooling device interfaces
    witn names that reflect the IDs of the ACPI device objects
    they are associated with, except for "generic" ACPI fans
    (PNP ID "PNP0C0B").  That's necessary for user space thermal
    management tools to be able to connect the fans with the
    parts of the system they are supposed to be cooling properly.
    From Srinivas Pandruvada.
 
 /
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Merge tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI and power management updates from Rafael Wysocki:
 "These are regression fixes (leds-gpio, ACPI backlight driver,
  operating performance points library, ACPI device enumeration
  messages, cpupower tool), other bug fixes (ACPI EC driver, ACPI device
  PM), some cleanups in the operating performance points (OPP)
  framework, continuation of CONFIG_PM_RUNTIME elimination, a couple of
  minor intel_pstate driver changes, a new MAINTAINERS entry for it and
  an ACPI fan driver change needed for better support of thermal
  management in user space.

  Specifics:

   - Fix a regression in leds-gpio introduced by a recent commit that
     inadvertently changed the name of one of the properties used by the
     driver (Fabio Estevam).

   - Fix a regression in the ACPI backlight driver introduced by a
     recent fix that missed one special case that had to be taken into
     account (Aaron Lu).

   - Drop the level of some new kernel messages from the ACPI core
     introduced by a recent commit to KERN_DEBUG which they should have
     used from the start and drop some other unuseful KERN_ERR messages
     printed by ACPI (Rafael J Wysocki).

   - Revert an incorrect commit modifying the cpupower tool (Prarit
     Bhargava).

   - Fix two regressions introduced by recent commits in the OPP library
     and clean up some existing minor issues in that code (Viresh
     Kumar).

   - Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout the
     tree (or drop it where that can be done) in order to make it
     possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki, Ulf
     Hansson, Ludovic Desroches).

     There will be one more "CONFIG_PM_RUNTIME removal" batch after this
     one, because some new uses of it have been introduced during the
     current merge window, but that should be sufficient to finally get
     rid of it.

   - Make the ACPI EC driver more robust against race conditions related
     to GPE handler installation failures (Lv Zheng).

   - Prevent the ACPI device PM core code from attempting to disable
     GPEs that it has not enabled which confuses ACPICA and makes it
     report errors unnecessarily (Rafael J Wysocki).

   - Add a "force" command line switch to the intel_pstate driver to
     make it possible to override the blacklisting of some systems in
     that driver if needed (Ethan Zhao).

   - Improve intel_pstate code documentation and add a MAINTAINERS entry
     for it (Kristen Carlson Accardi).

   - Make the ACPI fan driver create cooling device interfaces witn
     names that reflect the IDs of the ACPI device objects they are
     associated with, except for "generic" ACPI fans (PNP ID "PNP0C0B").

     That's necessary for user space thermal management tools to be able
     to connect the fans with the parts of the system they are supposed
     to be cooling properly.  From Srinivas Pandruvada"

* tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  MAINTAINERS: add entry for intel_pstate
  ACPI / video: update the skip case for acpi_video_device_in_dod()
  power / PM: Eliminate CONFIG_PM_RUNTIME
  NFC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  ACPI / EC: Fix unexpected ec_remove_handlers() invocations
  Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()"
  tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  x86 / PM: Replace CONFIG_PM_RUNTIME in io_apic.c
  PM: Remove the SET_PM_RUNTIME_PM_OPS() macro
  mmc: atmel-mci: use SET_RUNTIME_PM_OPS() macro
  PM / Kconfig: Replace PM_RUNTIME with PM in dependencies
  ARM / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  sound / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  phy / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  video / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  tty / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  ACPI / PM: Do not disable wakeup GPEs that have not been enabled
  ACPI / utils: Drop error messages from acpi_evaluate_reference()
  ...
2014-12-18 20:28:33 -08:00
Linus Torvalds 385336e321 platform-drivers-x86 for 3.19
thinkpad-acpi: Switch to software mute, cleanups
 acerhdf: Bang-bang thermal governor, new models, cleanups
 dell-laptop: New keyboard backlight support and documentation
 toshiba_acpi: Keyboard backlight updates, hotkey handling
 dell-wmi: Keypress filtering, WMI event processing
 eeepc-laptop: Multiple cleanups, improved error handling, documentation
 hp_wireless: Inform the user if hp_wireless_input_setup()/add() fails
 misc: Code cleanups, quirks, various new IDs
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Merge tag 'platform-drivers-x86-v3.19-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform driver update from Darren Hart:
 - thinkpad-acpi: Switch to software mute, cleanups
 - acerhdf: Bang-bang thermal governor, new models, cleanups
 - dell-laptop: New keyboard backlight support and documentation
 - toshiba_acpi: Keyboard backlight updates, hotkey handling
 - dell-wmi: Keypress filtering, WMI event processing
 - eeepc-laptop: Multiple cleanups, improved error handling, documentation
 - hp_wireless: Inform the user if hp_wireless_input_setup()/add() fails
 - misc: Code cleanups, quirks, various new IDs

* tag 'platform-drivers-x86-v3.19-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (33 commits)
  platform/x86/acerhdf: Still depends on THERMAL
  Documentation: Add entry for dell-laptop sysfs interface
  acpi: Remove _OSI(Linux) for ThinkPads
  thinkpad-acpi: Try to use full software mute control
  acerhdf: minor clean up
  acerhdf: added critical trip point
  acerhdf: Use bang-bang thermal governor
  acerhdf: Adding support for new models
  acerhdf: Adding support for "manual mode"
  dell-smo8800: Add more ACPI ids and change description of driver
  platform: x86: dell-laptop: Add support for keyboard backlight
  toshiba_acpi: Add keyboard backlight mode change event
  toshiba_acpi: Change notify funtion to handle more events
  toshiba_acpi: Move hotkey enabling code to its own function
  dell-wmi: Don't report keypresses on keybord illumination change
  dell-wmi: Don't report keypresses for radio state changes
  hp_wireless: Inform the user if hp_wireless_input_setup()/add() fails
  toshiba-acpi: Add missing ID (TOS6207)
  Sony-laptop: Deletion of an unnecessary check before the function call "pci_dev_put"
  platform: x86: Deletion of checks before backlight_device_unregister()
  ...
2014-12-18 20:24:55 -08:00
Linus Torvalds ebcffcda31 Merge git://www.linux-watchdog.org/linux-watchdog
Pull small watchdog update from Wim Van Sebroeck:
 - fix the argument of watchdog_active() in imx2_wdt
 - Add power management support to the imx2_wdt watchdog.

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: imx2_wdt: Fix the argument of watchdog_active()
  watchdog: imx2_wdt: Add power management support.
2014-12-18 20:21:32 -08:00
Linus Torvalds 0ec28c37c2 media updates for v3.19-rc1
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Merge tag 'media/v3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull second set of media updates from Mauro Carvalho Chehab:

 - Move drivers for really old legacy hardware to staging.  Those are
   using obsolete media kAPIs and are for hardware that nobody uses for
   years.  Simply not worth porting them to the new kAPIs.  Of course,
   if anyone pops up to fix, we can move them back from there

 - While not too late, do some API fixups at the new colorspace API,
   added for v3.19

 - Some improvements for rcar_vin driver

 - Some fixups at cx88 and vivid drivers

 - Some Documentation fixups

* tag 'media/v3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] bq/c-qcam, w9966, pms: move to staging in preparation for removal
  [media] tlg2300: move to staging in preparation for removal
  [media] vino/saa7191: move to staging in preparation for removal
  [media] MAINTAINERS: vivi -> vivid
  [media] cx88: remove leftover start_video_dma() call
  [media] cx88: add missing alloc_ctx support
  [media] v4l2-ioctl: WARN_ON if querycap didn't fill device_caps
  [media] vivid: fix CROP_BOUNDS typo for video output
  [media] DocBook media: update version number and document changes
  [media] vivid.txt: document new controls
  [media] DocBook media: add missing ycbcr_enc and quantization fields
  [media] v4l2-mediabus.h: use two __u16 instead of two __u32
  [media] rcar_vin: Fix interrupt enable in progressive
  [media] rcar_vin: Enable VSYNC field toggle mode
  [media] rcar_vin: Add scaling support
  [media] rcar_vin: Add DT support for r8a7793 and r8a7794 SoCs
  [media] rcar_vin: Add YUYV capture format support
2014-12-18 20:14:49 -08:00
Linus Torvalds 4c929feed7 Main batch of InfiniBand/RDMA changes for 3.19:
- On-demand paging support in core midlayer and mlx5 driver.  This lets
    userspace create non-pinned memory regions and have the adapter HW
    trigger page faults.
  - iSER and IPoIB updates and fixes.
  - Low-level HW driver updates for cxgb4, mlx4 and ocrdma.
  - Other miscellaneous fixes.
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband updates from Roland Dreier:
 "Main batch of InfiniBand/RDMA changes for 3.19:

   - On-demand paging support in core midlayer and mlx5 driver.  This
     lets userspace create non-pinned memory regions and have the
     adapter HW trigger page faults.
   - iSER and IPoIB updates and fixes.
   - Low-level HW driver updates for cxgb4, mlx4 and ocrdma.
   - Other miscellaneous fixes"

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (56 commits)
  IB/mlx5: Implement on demand paging by adding support for MMU notifiers
  IB/mlx5: Add support for RDMA read/write responder page faults
  IB/mlx5: Handle page faults
  IB/mlx5: Page faults handling infrastructure
  IB/mlx5: Add mlx5_ib_update_mtt to update page tables after creation
  IB/mlx5: Changes in memory region creation to support on-demand paging
  IB/mlx5: Implement the ODP capability query verb
  mlx5_core: Add support for page faults events and low level handling
  mlx5_core: Re-add MLX5_DEV_CAP_FLAG_ON_DMND_PG flag
  IB/srp: Allow newline separator for connection string
  IB/core: Implement support for MMU notifiers regarding on demand paging regions
  IB/core: Add support for on demand paging regions
  IB/core: Add flags for on demand paging support
  IB/core: Add support for extended query device caps
  IB/mlx5: Add function to read WQE from user-space
  IB/core: Add umem function to read data from user-space
  IB/core: Replace ib_umem's offset field with a full address
  IB/mlx5: Enhance UMR support to allow partial page table update
  IB/mlx5: Remove per-MR pas and dma pointers
  RDMA/ocrdma: Always resolve destination mac from GRH for UD QPs
  ...
2014-12-18 20:10:44 -08:00
Linus Torvalds 018cb13eb3 Merge branch 'akpm' (patches from Andrew)
Merge misc patches from Andrew Morton:
 "A few stragglers"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  tools/testing/selftests/Makefile: alphasort the TARGETS list
  mm/zsmalloc: adjust order of functions
  ocfs2: fix journal commit deadlock
  ocfs2/dlm: fix race between dispatched_work and dlm_lockres_grab_inflight_worker
  ocfs2: reflink: fix slow unlink for refcounted file
  mm/memory.c:do_shared_fault(): add comment
  .mailmap: Santosh Shilimkar has moved
  .mailmap: update akpm@osdl.org
  lib/show_mem.c: add cma reserved information
  fs/proc/meminfo.c: include cma info in proc/meminfo
  mm: cma: split cma-reserved in dmesg log
  hfsplus: fix longname handling
  mm/mempolicy.c: remove unnecessary is_valid_nodemask()
2014-12-18 19:08:25 -08:00
Andrew Morton 96e869d857 tools/testing/selftests/Makefile: alphasort the TARGETS list
This list is supposed to be sorted, to reduce patch collisions.

Cc: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:11 -08:00
Ganesh Mahendran 66cdef663c mm/zsmalloc: adjust order of functions
Currently functions in zsmalloc.c does not arranged in a readable and
reasonable sequence.  With the more and more functions added, we may
meet below inconvenience.  For example:

Current functions:

    void zs_init()
    {
    }

    static void get_maxobj_per_zspage()
    {
    }

Then I want to add a func_1() which is called from zs_init(), and this
new added function func_1() will used get_maxobj_per_zspage() which is
defined below zs_init().

    void func_1()
    {
        get_maxobj_per_zspage()
    }

    void zs_init()
    {
        func_1()
    }

    static void get_maxobj_per_zspage()
    {
    }

This will cause compiling issue. So we must add a declaration:

    static void get_maxobj_per_zspage();

before func_1() if we do not put get_maxobj_per_zspage() before
func_1().

In addition, puting module_[init|exit] functions at the bottom of the
file conforms to our habit.

So, this patch ajusts function sequence as:

    /* helper functions */
    ...
    obj_location_to_handle()
    ...

    /* Some exported functions */
    ...

    zs_map_object()
    zs_unmap_object()

    zs_malloc()
    zs_free()

    zs_init()
    zs_exit()

Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:11 -08:00
Junxiao Bi 136f49b917 ocfs2: fix journal commit deadlock
For buffer write, page lock will be got in write_begin and released in
write_end, in ocfs2_write_end_nolock(), before it unlock the page in
ocfs2_free_write_ctxt(), it calls ocfs2_run_deallocs(), this will ask
for the read lock of journal->j_trans_barrier.  Holding page lock and
ask for journal->j_trans_barrier breaks the locking order.

This will cause a deadlock with journal commit threads, ocfs2cmt will
get write lock of journal->j_trans_barrier first, then it wakes up
kjournald2 to do the commit work, at last it waits until done.  To
commit journal, kjournald2 needs flushing data first, it needs get the
cache page lock.

Since some ocfs2 cluster locks are holding by write process, this
deadlock may hung the whole cluster.

unlock pages before ocfs2_run_deallocs() can fix the locking order, also
put unlock before ocfs2_commit_trans() to make page lock is unlocked
before j_trans_barrier to preserve unlocking order.

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Wengang Wang <wen.gang.wang@oracle.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:11 -08:00
Joseph Qi 1e58958160 ocfs2/dlm: fix race between dispatched_work and dlm_lockres_grab_inflight_worker
Commit ac4fef4d23 ("ocfs2/dlm: do not purge lockres that is queued for
assert master") may have the following possible race case:

  dlm_dispatch_assert_master       dlm_wq
  ========================================================================
  queue_work(dlm->quedlm_worker,
      &dlm->dispatched_work);
                                 dispatch work,
                                 dlm_lockres_drop_inflight_worker
                                 *BUG_ON(res->inflight_assert_workers == 0)*
  dlm_lockres_grab_inflight_worker
  inflight_assert_workers++

So ensure inflight_assert_workers to be increased first.

Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Signed-off-by: Xue jiufei <xuejiufei@huawei.com>
Cc: Joel Becker <jlbec@evilplan.org>
Reviewed-by: Mark Fasheh <mfasheh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:11 -08:00
Junxiao Bi f62f12b3a4 ocfs2: reflink: fix slow unlink for refcounted file
When running ocfs2 test suite multiple nodes reflink stress test, for a
4 nodes cluster, every unlink() for refcounted file needs about 700s.

The slow unlink is caused by the contention of refcount tree lock since
all nodes are unlink files using the same refcount tree.  When the
unlinking file have many extents(over 1600 in our test), most of the
extents has refcounted flag set.  In ocfs2_commit_truncate(), it will
execute the following call trace for every extents.  This means it needs
get and released refcount tree lock about 1600 times.  And when several
nodes are do this at the same time, the performance will be very low.

  ocfs2_remove_btree_range()
  --  ocfs2_lock_refcount_tree()
  ----  ocfs2_refcount_lock()
  ------  __ocfs2_cluster_lock()

ocfs2_refcount_lock() is costly, move it to ocfs2_commit_truncate() to
do lock/unlock once can improve a lot performance.

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Wengang <wen.gang.wang@oracle.com>
Reviewed-by: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:11 -08:00
Andrew Morton d82fa87d2b mm/memory.c:do_shared_fault(): add comment
Belatedly document the changes in commit f0c6d4d295 ("mm: introduce
do_shared_fault() and drop do_fault()").

Cc: Andi Kleen <ak@linux.intel.com>
Cc: Bob Liu <lliubbo@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:11 -08:00
Santosh Shilimkar 48332f2846 .mailmap: Santosh Shilimkar has moved
Add my new email address along with kernel.org email id

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:11 -08:00
Andrew Morton 7d19c8ffb5 .mailmap: update akpm@osdl.org
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:11 -08:00
Vishnu Pratap Singh 49abd8c280 lib/show_mem.c: add cma reserved information
Add cma reserved information which is currently shown as a part of total
reserved only.  This patch is continuation of our previous cma patches
related to this.

  https://lkml.org/lkml/2014/10/20/64
  https://lkml.org/lkml/2014/10/22/383

[akpm@linux-foundation.org: remove hopefully-unneeded ifdefs]
Signed-off-by: Vishnu Pratap Singh <vishnu.ps@samsung.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Xishi Qiu <qiuxishi@huawei.com>
Cc: Pintu Kumar <pintu.k@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:10 -08:00
Pintu Kumar 47f8f9297d fs/proc/meminfo.c: include cma info in proc/meminfo
This patch include CMA info (CMATotal, CMAFree) in /proc/meminfo.
Currently, in a CMA enabled system, if somebody wants to know the total
CMA size declared, there is no way to tell, other than the dmesg or
/var/log/messages logs.

With this patch we are showing the CMA info as part of meminfo, so that it
can be determined at any point of time.  This will be populated only when
CMA is enabled.

Below is the sample output from a ARM based device with RAM:512MB and CMA:16MB.

  MemTotal:         471172 kB
  MemFree:          111712 kB
  MemAvailable:     271172 kB
  .
  .
  .
  CmaTotal:          16384 kB
  CmaFree:            6144 kB

This patch also fix below checkpatch errors that were found during these changes.

  ERROR: space required after that ',' (ctx:ExV)
  199: FILE: fs/proc/meminfo.c:199:
  +       ,atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10)
          ^

  ERROR: space required after that ',' (ctx:ExV)
  202: FILE: fs/proc/meminfo.c:202:
  +       ,K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
          ^

  ERROR: space required after that ',' (ctx:ExV)
  206: FILE: fs/proc/meminfo.c:206:
  +       ,K(totalcma_pages)
          ^

  total: 3 errors, 0 warnings, 2 checks, 236 lines checked

Signed-off-by: Pintu Kumar <pintu.k@samsung.com>
Signed-off-by: Vishnu Pratap Singh <vishnu.ps@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Rafael Aquini <aquini@redhat.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:10 -08:00
Pintu Kumar e48322abb0 mm: cma: split cma-reserved in dmesg log
When the system boots up, in the dmesg logs we can see the memory
statistics along with total reserved as below.  Memory: 458840k/458840k
available, 65448k reserved, 0K highmem

When CMA is enabled, still the total reserved memory remains the same.
However, the CMA memory is not considered as reserved.  But, when we see
/proc/meminfo, the CMA memory is part of free memory.  This creates
confusion.  This patch corrects the problem by properly subtracting the
CMA reserved memory from the total reserved memory in dmesg logs.

Below is the dmesg snapshot from an arm based device with 512MB RAM and
12MB single CMA region.

Before this change:
  Memory: 458840k/458840k available, 65448k reserved, 0K highmem

After this change:
  Memory: 458840k/458840k available, 53160k reserved, 12288k cma-reserved, 0K highmem

Signed-off-by: Pintu Kumar <pintu.k@samsung.com>
Signed-off-by: Vishnu Pratap Singh <vishnu.ps@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Rafael Aquini <aquini@redhat.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:10 -08:00
Sougata Santra 89ac9b4d3d hfsplus: fix longname handling
Longname is not correctly handled by hfsplus driver.  If an attempt to
create a longname(>255) file/directory is made, it succeeds by creating a
file/directory with HFSPLUS_MAX_STRLEN and incorrect catalog key.  Thus
leaving the volume in an inconsistent state.  This patch fixes this issue.

Although lookup is always called first to create a negative entry, so just
doing a check in lookup would probably fix this issue.  I choose to
propagate error to other iops as well.

Please NOTE: I have factored out hfsplus_cat_build_key_with_cnid from
hfsplus_cat_build_key, to avoid unncessary branching.

Thanks a lot.

  TEST:
  ------
  dir="TEST_DIR"
  cdir=`pwd`
  name255="_123456789_123456789_123456789_123456789_123456789_123456789\
  _123456789_123456789_123456789_123456789_123456789_123456789_123456789\
  _123456789_123456789_123456789_123456789_123456789_123456789_123456789\
  _123456789_123456789_123456789_123456789_123456789_1234"
  name256="${name255}5"

  mkdir $dir
  cd $dir
  touch $name255
  rm -f $name255
  touch $name256
  ls -la
  cd $cdir
  rm -rf $dir

  RESULT:
  -------
  [sougata@ultrabook tmp]$ cdir=`pwd`
  [sougata@ultrabook tmp]$
  name255="_123456789_123456789_123456789_123456789_123456789_123456789\
   > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\
   > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\
   > _123456789_123456789_123456789_123456789_123456789_1234"
  [sougata@ultrabook tmp]$ name256="${name255}5"
  [sougata@ultrabook tmp]$
  [sougata@ultrabook tmp]$ mkdir $dir
  [sougata@ultrabook tmp]$ cd $dir
  [sougata@ultrabook TEST_DIR]$ touch $name255
  [sougata@ultrabook TEST_DIR]$ rm -f $name255
  [sougata@ultrabook TEST_DIR]$ touch $name256
  [sougata@ultrabook TEST_DIR]$ ls -la
  ls: cannot access
  _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234:
  No such file or directory
  total 0
  drwxrwxr-x 1 sougata sougata 3 Feb 20 19:56 .
  drwxrwxrwx 1 root    root    6 Feb 20 19:56 ..
  -????????? ? ?       ?       ?            ?
  _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234
  [sougata@ultrabook TEST_DIR]$ cd $cdir
  [sougata@ultrabook tmp]$ rm -rf $dir
  rm: cannot remove `TEST_DIR': Directory not empty

-ENAMETOOLONG returned from hfsplus_asc2uni was not propaged to iops.
This allowed hfsplus to create files/directories with HFSPLUS_MAX_STRLEN
and incorrect keys, leaving the FS in an inconsistent state.  This patch
fixes this issue.

Signed-off-by: Sougata Santra <sougata@tuxera.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Vyacheslav Dubeyko <slava@dubeyko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:10 -08:00
Zhihui Zhang 859f7ef142 mm/mempolicy.c: remove unnecessary is_valid_nodemask()
When nodes is true, nsc->mask2 has already been filtered by nsc->mask1,
which has already factored in node_states[N_MEMORY].

Signed-off-by: Zhihui Zhang <zzhsuny@gmail.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 19:08:10 -08:00
Nicholas Bellinger ae450e246e target: Allow AllRegistrants to re-RESERVE existing reservation
This patch changes core_scsi3_pro_release() logic to allow an
existing AllRegistrants type reservation to be re-reserved by
any registered I_T nexus.

This addresses a issue where AllRegistrants type RESERVE was
receiving RESERVATION_CONFLICT status if dev_pr_res_holder did
not match the same I_T nexus, instead of just returning GOOD
status following spc4r34 Section 5.9.9:

"If the device server receives a PERSISTENT RESERVE OUT command
 with RESERVE service action where the TYPE field and the SCOPE
 field contain the same values as the existing type and scope
 from a persistent reservation holder, it shall not make any
 change to the existing persistent reservation and shall complete
 the command with GOOD status."

Reported-by: Ilias Tsitsimpis <i.tsitsimpis@gmail.com>
Cc: Ilias Tsitsimpis <i.tsitsimpis@gmail.com>
Cc: Lee Duncan <lduncan@suse.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-12-19 01:08:32 +00:00
Linus Torvalds 00c845dbfe Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix NBMA tunnel mac header handling in GRE, from Timo Teräs.

 2) Fix a NAPI race in the fec driver, from Nimrod Andy.

 3) The new IFF_VNET_LE bit is outside the size of the flags member it
    is stored in (which is 16-bits), store the state locally in the
    drivers.  From Michael S Tsirkin.

 4) We are kicking the tires with the new wireless maintainership
    situation.  Bluetooth fixes via Johan Hedberg, and mac80211 fixes
    from Johannes Berg.

 5) Fix locking and leaks in geneve driver, from Jesse Gross.

 6) Make netlink TX mmap code always copy, so we don't have to be
    potentially exposed to the user changing the underlying contents
    from underneath us.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (63 commits)
  be2net: Fix incorrect setting of tunnel offload flag in netdev features
  bnx2x: fix typos in "configure"
  xen-netback: support frontends without feature-rx-notify again
  MAINTAINERS: changes for wireless
  cxgb4: Fix decoding QSA module for ethtool get settings
  geneve: Fix races between socket add and release.
  geneve: Remove socket and offload handlers at destruction.
  netlink: Don't reorder loads/stores before marking mmap netlink frame as available
  netlink: Always copy on mmap TX.
  Bluetooth: Fix bug with filter in service discovery optimization
  mac80211: free management frame keys when removing station
  net: Disallow providing non zero VLAN ID for NIC drivers FDB add flow
  net/mlx4: Cache line CQE/EQE stride fixes
  net: fec: Fix NAPI race
  xen-netfront: use napi_complete() correctly to prevent Rx stalling
  ip_tunnel: Add missing validation of encap type to ip_tunnel_encap_setup()
  ip_tunnel: Add sanity checks to ip_tunnel_encap_add_ops()
  net: Allow FIXED_PHY to be modular.
  if_tun: drop broken IFF_VNET_LE
  macvtap: drop broken IFF_VNET_LE
  ...
2014-12-18 16:41:13 -08:00
Linus Torvalds 28ee5809ff Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fix from David Miller:
 "Sparc32 locking bug fix from Andreas Larsson"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc32: destroy_context() and switch_mm() needs to disable interrupts.
2014-12-18 16:32:11 -08:00
Linus Torvalds 22943a6a6b Minor updates for ARC for 3.19
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Merge tag 'arc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull arch/arc updates from Vineet Gupta:
 "Minor updates for ARC for 3.19"

* tag 'arc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: rename default defconfig
  ARC: [nsimosci] move peripherals to match model to FPGA
  ARC: document memory clobber in irq control macros
  ARC: R-M-W assist locks only needed for !LLSC
  ARC: add power management options
2014-12-18 16:26:41 -08:00
Linus Torvalds 39757e7351 nios2 fixes for v3.19
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Merge tag 'nios2-fixes-v3.19' of git://git.rocketboards.org/linux-socfpga-next

Pull arch/nios2 fixes from Ley Foon Tan:
 - add definition of ioremap_wc to io.h to fix build error from make
   allmodconfig
 - fix make defconfig
 - fix sparse error

* tag 'nios2-fixes-v3.19' of git://git.rocketboards.org/linux-socfpga-next:
  nios2/uaccess: fix sparse errors
  nios2: enable "make defconfig"
  nios2: add definition of ioremap_wc to io.h
2014-12-18 16:13:40 -08:00
Linus Torvalds 66dcff86ba 3.19 changes for KVM:
- spring cleaning: removed support for IA64, and for hardware-assisted
 virtualization on the PPC970
 - ARM, PPC, s390 all had only small fixes
 
 For x86:
 - small performance improvements (though only on weird guests)
 - usual round of hardware-compliancy fixes from Nadav
 - APICv fixes
 - XSAVES support for hosts and guests.  XSAVES hosts were broken because
 the (non-KVM) XSAVES patches inadvertently changed the KVM userspace
 ABI whenever XSAVES was enabled; hence, this part is going to stable.
 Guest support is just a matter of exposing the feature and CPUID leaves
 support.
 
 Right now KVM is broken for PPC BookE in your tree (doesn't compile).
 I'll reply to the pull request with a patch, please apply it either
 before the pull request or in the merge commit, in order to preserve
 bisectability somewhat.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM update from Paolo Bonzini:
 "3.19 changes for KVM:

   - spring cleaning: removed support for IA64, and for hardware-
     assisted virtualization on the PPC970

   - ARM, PPC, s390 all had only small fixes

  For x86:
   - small performance improvements (though only on weird guests)
   - usual round of hardware-compliancy fixes from Nadav
   - APICv fixes
   - XSAVES support for hosts and guests.  XSAVES hosts were broken
     because the (non-KVM) XSAVES patches inadvertently changed the KVM
     userspace ABI whenever XSAVES was enabled; hence, this part is
     going to stable.  Guest support is just a matter of exposing the
     feature and CPUID leaves support"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (179 commits)
  KVM: move APIC types to arch/x86/
  KVM: PPC: Book3S: Enable in-kernel XICS emulation by default
  KVM: PPC: Book3S HV: Improve H_CONFER implementation
  KVM: PPC: Book3S HV: Fix endianness of instruction obtained from HEIR register
  KVM: PPC: Book3S HV: Remove code for PPC970 processors
  KVM: PPC: Book3S HV: Tracepoints for KVM HV guest interactions
  KVM: PPC: Book3S HV: Simplify locking around stolen time calculations
  arch: powerpc: kvm: book3s_paired_singles.c: Remove unused function
  arch: powerpc: kvm: book3s_pr.c: Remove unused function
  arch: powerpc: kvm: book3s.c: Remove some unused functions
  arch: powerpc: kvm: book3s_32_mmu.c: Remove unused function
  KVM: PPC: Book3S HV: Check wait conditions before sleeping in kvmppc_vcore_blocked
  KVM: PPC: Book3S HV: ptes are big endian
  KVM: PPC: Book3S HV: Fix inaccuracies in ICP emulation for H_IPI
  KVM: PPC: Book3S HV: Fix KSM memory corruption
  KVM: PPC: Book3S HV: Fix an issue where guest is paused on receiving HMI
  KVM: PPC: Book3S HV: Fix computation of tlbie operand
  KVM: PPC: Book3S HV: Add missing HPTE unlock
  KVM: PPC: BookE: Improve irq inject tracepoint
  arm/arm64: KVM: Require in-kernel vgic for the arch timers
  ...
2014-12-18 16:05:28 -08:00
Alexander Graf 91ed9e8a32 KVM: PPC: E500: Compile fix in this_cpu_write
Commit 69111bac42 ("powerpc: Replace __get_cpu_var uses") introduced
compile breakage to the e500 target by introducing invalid automatically
created C syntax.

Fix up the breakage and make the code compile again.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 16:02:26 -08:00
David S. Miller 86c8fc4bbe This relatively large collection of fixes is all over - from things
that were broken a long time ago (the management key issue) but not
 noticed yet, to small issues that were only introduced into 3.19
 (like the multicast issue). At least one issue is old but can crash
 the kernel based on invalid userspace requests (the nl80211 matches
 array one.)
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Merge tag 'mac80211-for-davem-2014-12-18' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
pull-request: mac80211 2014-12-18

Also from me a first pull request - we have a number of really old
issues that happened to crop up now with new work (or just more testing)
in the right areas as well as some small bugs newly introduced in 3.19.

Let me know if there are any problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-18 15:33:49 -05:00
David S. Miller 7dce675b28 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Johan Hedberg says:

====================
pull request: bluetooth 2014-12-17

Here's the first direct (i.e. skipping the wireless tree) bluetooth pull
request for you, intended for 3.19. It's just one patch: a fix from
Marcel for for remote service discovery filtering which also fixes a
'used uninitialized' compiler warning.

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-18 15:32:27 -05:00
Eric W. Biederman c297abfdf1 mnt: Fix a memory stomp in umount
While reviewing the code of umount_tree I realized that when we append
to a preexisting unmounted list we do not change pprev of the former
first item in the list.

Which means later in namespace_unlock hlist_del_init(&mnt->mnt_hash) on
the former first item of the list will stomp unmounted.first leaving
it set to some random mount point which we are likely to free soon.

This isn't likely to hit, but if it does I don't know how anyone could
track it down.

[ This happened because we don't have all the same operations for
  hlist's as we do for normal doubly-linked lists. In particular,
  list_splice() is easy on our standard doubly-linked lists, while
  hlist_splice() doesn't exist and needs both start/end entries of the
  hlist.  And commit 38129a13e6 incorrectly open-coded that missing
  hlist_splice().

  We should think about making these kinds of "mindless" conversions
  easier to get right by adding the missing hlist helpers   - Linus ]

Fixes: 38129a13e6 switch mnt_hash to hlist
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-18 11:22:02 -08:00
Kyle McMartin 3875f15207 uapi/linux/target_core_user.h: fix headers_install.sh badness
scripts/headers_install.sh will transform __packed to
__attribute__((packed)), so the #ifndef is not necessary.
(and, in fact, it's problematic, because we'll end up with the header
 containing:
#ifndef __attribute__((packed))
#define __attribu...
and so forth.)

Cc: stable@vger.kernel.org # 3.18
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-12-18 11:07:27 -08:00
Sriharsha Basavapatna ac9a3d84e1 be2net: Fix incorrect setting of tunnel offload flag in netdev features
An earlier commit to resolve an issue with encapsulation offloads missed
setting a bit in the outer netdev features flag. This results in loss of TSO
feature on a VxLAN interface.

Fixes: 630f4b70 ("Export tunnel offloads only when a VxLAN tunnel is created")

Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-18 12:51:29 -05:00
Jiri Benc bf27c3537c bnx2x: fix typos in "configure"
Noticed when debugging ptp.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-18 12:50:36 -05:00
David Vrabel 26c0e10258 xen-netback: support frontends without feature-rx-notify again
Commit bc96f648df (xen-netback: make
feature-rx-notify mandatory) incorrectly assumed that there were no
frontends in use that did not support this feature.  But the frontend
driver in MiniOS does not and since this is used by (qemu) stubdoms,
these stopped working.

Netback sort of works as-is in this mode except:

- If there are no Rx requests and the internal Rx queue fills, only
  the drain timeout will wake the thread.  The default drain timeout
  of 10 s would give unacceptable pauses.

- If an Rx stall was detected and the internal Rx queue is drained,
  then the Rx thread would never wake.

Handle these two cases (when feature-rx-notify is disabled) by:

- Reducing the drain timeout to 30 ms.

- Disabling Rx stall detection.

Reported-by: John <jw@nuclearfallout.net>
Tested-by: John <jw@nuclearfallout.net>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-18 12:49:49 -05:00
Andreas Larsson 66d0f7ec9f sparc32: destroy_context() and switch_mm() needs to disable interrupts.
Load balancing can be triggered in the critical sections protected by
srmmu_context_spinlock in destroy_context() and switch_mm() and can hang
the cpu waiting for the rq lock of another cpu that in turn has called
switch_mm hangning on srmmu_context_spinlock leading to deadlock.

So, disable interrupt while taking srmmu_context_spinlock in
destroy_context() and switch_mm() so we don't deadlock.

See also commit 77b838fa1e ("[SPARC64]: destroy_context() needs to disable
interrupts.")

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-18 12:47:54 -05:00
Rafael J. Wysocki 2ec1c17cad Merge branches 'pm-opp', 'pm-cpufreq' and 'pm-tools'
* pm-opp:
  PM / OPP: do error handling at the bottom of dev_pm_opp_add_dynamic()
  PM / OPP: handle allocation of device_opp in a separate routine
  PM / OPP: reuse find_device_opp() instead of duplicating code
  PM / OPP: Staticize __dev_pm_opp_remove()
  PM / OPP: replace kfree with kfree_rcu while freeing 'struct device_opp'

* pm-cpufreq:
  MAINTAINERS: add entry for intel_pstate
  intel_pstate: Add a few comments
  intel_pstate: add kernel parameter to force loading

* pm-tools:
  Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()"
2014-12-18 18:44:53 +01:00
Rafael J. Wysocki 035f10ee4e Merge branch 'pm-runtime'
* pm-runtime:
  power / PM: Eliminate CONFIG_PM_RUNTIME
  NFC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  x86 / PM: Replace CONFIG_PM_RUNTIME in io_apic.c
  PM: Remove the SET_PM_RUNTIME_PM_OPS() macro
  mmc: atmel-mci: use SET_RUNTIME_PM_OPS() macro
  PM / Kconfig: Replace PM_RUNTIME with PM in dependencies
  ARM / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  sound / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  phy / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  video / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  tty / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
2014-12-18 18:44:05 +01:00
Rafael J. Wysocki 0a06664286 Merge branches 'acpi-fan', 'acpi-video' and 'acpi-ec'
* acpi-fan:
  ACPI / Fan: Use bus id as the name for non PNP0C0B (Fan) devices

* acpi-video:
  ACPI / video: update the skip case for acpi_video_device_in_dod()

* acpi-ec:
  ACPI / EC: Fix unexpected ec_remove_handlers() invocations
2014-12-18 18:43:16 +01:00
Rafael J. Wysocki be10f60d29 Merge branches 'acpi-scan', 'acpi-utils' and 'acpi-pm'
* acpi-scan:
  ACPI / scan: Change the level of _DEP-related messages to KERN_DEBUG

* acpi-utils:
  ACPI / utils: Drop error messages from acpi_evaluate_reference()

* acpi-pm:
  ACPI / PM: Do not disable wakeup GPEs that have not been enabled
2014-12-18 18:42:56 +01:00
John W. Linville 0e324cf640 MAINTAINERS: changes for wireless
http://marc.info/?l=linux-wireless&m=141883202530292&w=2

This makes it official... :-)

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-18 12:41:12 -05:00
Hariprasad Shenai 5aa80e5144 cxgb4: Fix decoding QSA module for ethtool get settings
QSA module was getting decoded as QSFP module in ethtool get settings, this
patch fixes it.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-18 12:39:16 -05:00
Jesse Gross 12069401d8 geneve: Fix races between socket add and release.
Currently, searching for a socket to add a reference to is not
synchronized with deletion of sockets. This can result in use
after free if there is another operation that is removing a
socket at the same time. Solving this requires both holding the
appropriate lock and checking the refcount to ensure that it
has not already hit zero.

Inspired by a related (but not exactly the same) issue in the
VXLAN driver.

Fixes: 0b5e8b8e ("net: Add Geneve tunneling protocol driver")
CC: Andy Zhou <azhou@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-18 12:38:13 -05:00