GitHub/LineageOS/android_kernel_motorola_exynos9610.git
11 years agoGFS2: Use single-block reservations for directories
Bob Peterson [Tue, 14 May 2013 17:04:29 +0000 (13:04 -0400)]
GFS2: Use single-block reservations for directories

This patch changes the multi-block allocation code, such that
directory inodes only get a single block reserved in the bitmap.
That way, the bitmaps are more tightly packed together, and there
are fewer spans of free blocks for in-use block reservations.
This means it takes less time to find a free span of blocks in the
bitmap, which speeds things up. This increases the performance of
some workloads by almost 2X. In Nate's mockup.py script (which does
(1) create dir, (2) create dir in dir, (3) create file in that dir)
the test executes in 23 steps rather than 43 steps, a 47%
performance improvement.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
11 years agoGFS2: two minor quota fixups
Bob Peterson [Fri, 10 May 2013 15:59:18 +0000 (11:59 -0400)]
GFS2: two minor quota fixups

This patch fixes two regression problems that Abhi found in the
GFS2 quota code.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
11 years agoLinux 3.10-rc2
Linus Torvalds [Mon, 20 May 2013 21:37:38 +0000 (14:37 -0700)]
Linux 3.10-rc2

11 years agoMerge tag 'stable/for-linus-3.10-rc1-tag' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Mon, 20 May 2013 21:25:19 +0000 (14:25 -0700)]
Merge tag 'stable/for-linus-3.10-rc1-tag' of git://git./linux/kernel/git/konrad/xen

Pull Xen fixes from Konrad Rzeszutek Wilk:
 - Regression fix in xen privcmd fixing a memory leak.
 - Add Documentation for tmem driver.
 - Simplify and remove code in the tmem driver.
 - Cleanups.

* tag 'stable/for-linus-3.10-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: Fixed assignment error in if statement
  xen/xenbus: Fixed over 80 character limit issue
  xen/xenbus: Fixed indentation error in switch case
  xen/tmem: Don't use self[ballooning|shrinking] if frontswap is off.
  xen/tmem: Remove the usage of '[no|]selfballoon' and use 'tmem.selfballooning' bool instead.
  xen/tmem: Remove the usage of 'noselfshrink' and use 'tmem.selfshrink' bool instead.
  xen/tmem: Remove the boot options and fold them in the tmem.X parameters.
  xen/tmem: s/disable_// and change the logic.
  xen/tmem: Fix compile warning.
  xen/tmem: Split out the different module/boot options.
  xen/tmem: Move all of the boot and module parameters to the top of the file.
  xen/tmem: Cleanup. Remove the parts that say temporary.
  xen/privcmd: fix condition in privcmd_close()

11 years agoMerge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck...
Linus Torvalds [Mon, 20 May 2013 18:36:52 +0000 (11:36 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Error path fixes for abituguru and iio_hwmon drivers.

 - Drop erroneously created attributes from nct6775 driver.

 - Drop redundant safety on cache lifetime for tmp401 driver.

 - Add explicit maintainer for LM95234 and TMP401 drivers.

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  MAINTAINERS: Add myself as maintainer for LM95234 and TMP401 drivers
  hwmon: (tmp401) Drop redundant safety on cache lifetime
  hwmon: fix error return code in abituguru_probe()
  hwmon: (iio_hwmon) Fix null pointer dereference
  hwmon: (nct6775) Do not create non-existing attributes
  hwmon: (iio_hwmon) Fix missing iio_channel_release_all call if devm_kzalloc fail

11 years agox86: Fix bit corruption at CPU resume time
Linus Torvalds [Mon, 20 May 2013 18:36:03 +0000 (11:36 -0700)]
x86: Fix bit corruption at CPU resume time

In commit 78d77df71510 ("x86-64, init: Do not set NX bits on non-NX
capable hardware") we added the early_pmd_flags that gets the NX bit set
when a CPU supports NX. However, the new variable was marked __initdata,
because the main _use_ of this is in an __init routine.

However, the bit setting happens from secondary_startup_64(), which is
called not only at bootup, but on every secondary CPU start.  Including
resuming from STR and at CPU hotplug time.  So the value cannot be
__initdata.

Reported-bisected-and-tested-by: Michal Hocko <mhocko@suse.cz>
Cc: stable@vger.kernel.org # v3.9
Acked-by: Peter Anvin <hpa@linux.intel.com>
Cc: Fernando Luis Vázquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoxen: Fixed assignment error in if statement
Lisa Nguyen [Thu, 16 May 2013 05:59:40 +0000 (22:59 -0700)]
xen: Fixed assignment error in if statement

Fixed assignment error in if statement in balloon.c

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoxen/xenbus: Fixed over 80 character limit issue
Lisa Nguyen [Thu, 16 May 2013 06:48:03 +0000 (23:48 -0700)]
xen/xenbus: Fixed over 80 character limit issue

Fixed the format length of the xenbus_backend_ioctl()
function to meet the 80 character limit in
xenbus_dev_backend.c

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoxen/xenbus: Fixed indentation error in switch case
Lisa Nguyen [Thu, 16 May 2013 06:47:11 +0000 (23:47 -0700)]
xen/xenbus: Fixed indentation error in switch case

Fixed the indentation error in the switch case in
xenbus_dev_backend.c

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoMerge tag 'pinctrl-fixes-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 20 May 2013 14:59:46 +0000 (07:59 -0700)]
Merge tag 'pinctrl-fixes-v3.10-2' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl fixes from Linus Walleij:

 - Three fixes to make the boot path for device tree work properly on
   the Nomadik pin controller.

 - Compile warning fix for the vt8500 driver.

 - Fix error path in pinctrl-single.

 - Free mappings in error path of the Lantiq controller.

 - Documentation fixes.

* tag 'pinctrl-fixes-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl/lantiq: Free mapping configs for both pin and groups
  pinctrl: single: fix error return code in pcs_parse_one_pinctrl_entry()
  pinctrl: generic: Fix typos and clarify comments
  pinctrl: vt8500: Fix incorrect data in WM8750 pinctrl table
  pinctrl: abx500: Rejiggle platform data and DT initialisation
  pinctrl: abx500: Specify failed sub-driver by ID instead of driver_data

11 years agoMerge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Mon, 20 May 2013 14:58:51 +0000 (07:58 -0700)]
Merge branch 'rc-fixes' of git://git./linux/kernel/git/mmarek/kbuild

Pull kbuild fix from Michal Marek:
 "In an attempt to improve make rpm-pkg, I broke make binrpm-pkg"

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  package: Makefile: unbreak binrpm-pkg target

11 years agoMAINTAINERS: Add myself as maintainer for LM95234 and TMP401 drivers
Guenter Roeck [Mon, 20 May 2013 03:44:27 +0000 (20:44 -0700)]
MAINTAINERS: Add myself as maintainer for LM95234 and TMP401 drivers

I wrote the LM95234 driver and extended the TMP401 driver substantially,
and I have hardware to test both, so it makes sense to explicitly
maintain them.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
11 years agoMerge tag 'dm-3.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm
Linus Torvalds [Sun, 19 May 2013 19:35:30 +0000 (12:35 -0700)]
Merge tag 'dm-3.10-fixes' of git://git./linux/kernel/git/agk/linux-dm

Pull device mapper fix from Alasdair Kergon:
 "A patch to fix metadata resizing with device-mapper thin devices."

* tag 'dm-3.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
  dm thin: fix metadata dev resize detection

11 years agodm thin: fix metadata dev resize detection
Alasdair G Kergon [Sun, 19 May 2013 17:57:50 +0000 (18:57 +0100)]
dm thin: fix metadata dev resize detection

Fix detection of the need to resize the dm thin metadata device.

The code incorrectly tried to extend the metadata device when it
didn't need to due to a merging error with patch 24347e9 ("dm thin:
detect metadata device resizing").

  device-mapper: transaction manager: couldn't open metadata space map
  device-mapper: thin metadata: tm_open_with_sm failed
  device-mapper: thin: aborting transaction failed
  device-mapper: thin: switching pool to failure mode

Signed-off-by: Alasdair G Kergon <agk@redhat.com>
11 years agohwmon: (tmp401) Drop redundant safety on cache lifetime
Jean Delvare [Sun, 19 May 2013 14:57:30 +0000 (16:57 +0200)]
hwmon: (tmp401) Drop redundant safety on cache lifetime

time_after (as opposed to time_after_equal) already ensures that the
cache lifetime is at least as much as requested. There is no point in
manually adding another jiffy to that value, and this can confuse the
reader into wrong interpretation.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sat, 18 May 2013 18:35:28 +0000 (11:35 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "Miao Xie has been very busy, fixing races and enospc problems and many
  other small but important pieces.

  Alexandre Oliva discovered some problems with how our error handling
  was interacting with the block layer and for now has disabled our
  partial handling of sub-page writes.  The real sub-page work is in a
  series of patches from IBM that we still need to integrate and test.
  The code Alexandre has turned off was really incomplete.

  Josef has more error handling fixes and an important fix for the new
  skinny extent format.

  This also has my fix for the tracepoint crash from late in 3.9.  It's
  the first stage in a larger clean up to get rid of btrfs_bio and make
  a proper bioset for all the items we need to tack into the bio.  For
  now the bioset only holds our mirror_num and stripe_index, but for the
  next merge window I'll shuffle more in."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (25 commits)
  Btrfs: use a btrfs bioset instead of abusing bio internals
  Btrfs: make sure roots are assigned before freeing their nodes
  Btrfs: explicitly use global_block_rsv for quota_tree
  btrfs: do away with non-whole_page extent I/O
  Btrfs: don't invoke btrfs_invalidate_inodes() in the spin lock context
  Btrfs: remove BUG_ON() in btrfs_read_fs_tree_no_radix()
  Btrfs: pause the space balance when remounting to R/O
  Btrfs: fix unprotected root node of the subvolume's inode rb-tree
  Btrfs: fix accessing a freed tree root
  Btrfs: return errno if possible when we fail to allocate memory
  Btrfs: update the global reserve if it is empty
  Btrfs: don't steal the reserved space from the global reserve if their space type is different
  Btrfs: optimize the error handle of use_block_rsv()
  Btrfs: don't use global block reservation for inode cache truncation
  Btrfs: don't abort the current transaction if there is no enough space for inode cache
  Correct allowed raid levels on balance.
  Btrfs: fix possible memory leak in replace_path()
  Btrfs: fix possible memory leak in the find_parent_nodes()
  Btrfs: don't allow device replace on RAID5/RAID6
  Btrfs: handle running extent ops with skinny metadata
  ...

11 years agoMerge branch 'devm_no_resource_check' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 May 2013 17:54:54 +0000 (10:54 -0700)]
Merge branch 'devm_no_resource_check' of git://git./linux/kernel/git/wsa/linux

Pull devm usage cleanup from Wolfram Sang:
 "Lately, I have been experimenting how to improve the devm interface to
  make writing device drivers easier and less error prone while also
  getting rid of its subtle issues.  I think it has more potential but
  still needs work and definately conistency, especiall in its usage.

  The first thing I come up with is a low hanging fruit regarding
  devm_ioremap_resouce().  This function already checks if the passed
  resource is valid and gives an error message if not.  So, we can
  remove similar checks from the drivers and get rid of a bit of code
  and a number of inconsistent error strings.

  This series only removes the unneeded check iff devm_ioremap_resource
  follows platform_get_resource directly.  The previous version tried to
  shuffle code if needed, too, what lead to an embarrasing bug.  It
  turned out to me that shuffling code for all cases found will make the
  automated script too complex, so I am unsure if an automated cleanup
  is the proper tool for this case.  Removing the easy stuff seems
  worthwhile to me, though.

  Despite various architectures and platform dependencies, I managed to
  compile test 45 out of 57 modified files locally using heuristics and
  defconfigs."

Pulled because: 296 deletions, 0 additions.

* 'devm_no_resource_check' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (33 commits)
  sound/soc/kirkwood: don't check resource with devm_ioremap_resource
  sound/soc/fsl: don't check resource with devm_ioremap_resource
  arch/mips/lantiq/xway: don't check resource with devm_ioremap_resource
  arch/arm/plat-samsung: don't check resource with devm_ioremap_resource
  arch/arm/mach-tegra: don't check resource with devm_ioremap_resource
  drivers/watchdog: don't check resource with devm_ioremap_resource
  drivers/w1/masters: don't check resource with devm_ioremap_resource
  drivers/video/omap2/dss: don't check resource with devm_ioremap_resource
  drivers/video/omap2: don't check resource with devm_ioremap_resource
  drivers/usb/phy: don't check resource with devm_ioremap_resource
  drivers/usb/host: don't check resource with devm_ioremap_resource
  drivers/usb/gadget: don't check resource with devm_ioremap_resource
  drivers/usb/chipidea: don't check resource with devm_ioremap_resource
  drivers/thermal: don't check resource with devm_ioremap_resource
  drivers/staging/nvec: don't check resource with devm_ioremap_resource
  drivers/staging/dwc2: don't check resource with devm_ioremap_resource
  drivers/spi: don't check resource with devm_ioremap_resource
  drivers/rtc: don't check resource with devm_ioremap_resource
  drivers/pwm: don't check resource with devm_ioremap_resource
  drivers/pinctrl: don't check resource with devm_ioremap_resource
  ...

11 years agoMerge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Linus Torvalds [Sat, 18 May 2013 17:46:50 +0000 (10:46 -0700)]
Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux

Pull device tree fixes from Grant Likely:
 "Device tree bug fixes and documentation updates for v3.10

  Nothing earth shattering here.  A build failure fix, and fix for
  releasing nodes and some documenation updates."

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
  Documentation/devicetree: make semantic of initrd-end more explicit
  of/base: release the node correctly in of_parse_phandle_with_args()
  of/documentation: move video device bindings to a common place
  <linux/of_platform.h>: fix compilation warnings with DT disabled

11 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Sat, 18 May 2013 17:36:37 +0000 (10:36 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS fixes from Ralf Baechle:
 "Patching up across the field.  The reversion of the two ASID patches
  is particularly important as it was breaking many platforms."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: ralink: use the dwc2 driver for the rt305x USB controller
  MIPS: Extract schedule_mfi info from __schedule
  MIPS: Fix sibling call handling in get_frame_info
  MIPS: MSP71xx: remove inline marking of EXPORT_SYMBOL functions
  MIPS: Make virt_to_phys() work for all unmapped addresses.
  MIPS: Fix build error for crash_dump.c in 3.10-rc1
  MIPS: Xway: Fix clk leak
  Revert "MIPS: Allow ASID size to be determined at boot time."
  Revert "MIPS: microMIPS: Support dynamic ASID sizing."

11 years agoMerge tag 'kmemleak-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
Linus Torvalds [Sat, 18 May 2013 17:21:32 +0000 (10:21 -0700)]
Merge tag 'kmemleak-fixes' of git://git./linux/kernel/git/cmarinas/linux-aarch64

Pull kmemleak patches from Catalin Marinas:
 "Kmemleak now scans all the writable and non-executable module sections
  to avoid false positives (previously it was only scanning specific
  sections and missing .ref.data)."

* tag 'kmemleak-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  kmemleak: No need for scanning specific module sections
  kmemleak: Scan all allocated, writeable and not executable module sections

11 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
Linus Torvalds [Sat, 18 May 2013 17:20:46 +0000 (10:20 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/cmarinas/linux-aarch64

Pull arm64 fixes from Catalin Marinas:
 "Fixes for duplicate definition of early_console, kernel/time/Kconfig
  include, __flush_dcache_all() set/way computing, debug (locking, bit
  testing).  The of_platform_populate() was moved to an arch_init_call()
  to allow subsys_init_call() drivers to probe the DT."

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: debug: fix mdscr.ss check when enabling debug exceptions
  arm64: Do not source kernel/time/Kconfig explicitly
  arm64: mm: Fix operands of clz in __flush_dcache_all
  arm64: Invoke the of_platform_populate() at arch_initcall() level
  arm64: debug: clear mdscr_el1 instead of taking the OS lock
  arm64: Fix duplicate definition of early_console

11 years agosound/soc/kirkwood: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:57 +0000 (15:19 +0200)]
sound/soc/kirkwood: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agosound/soc/fsl: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:57 +0000 (15:19 +0200)]
sound/soc/fsl: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agoarch/mips/lantiq/xway: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:56 +0000 (15:19 +0200)]
arch/mips/lantiq/xway: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: John Crispin <blogic@openwrt.org>
11 years agoarch/arm/plat-samsung: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:55 +0000 (15:19 +0200)]
arch/arm/plat-samsung: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agoarch/arm/mach-tegra: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:55 +0000 (15:19 +0200)]
arch/arm/mach-tegra: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/watchdog: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:54 +0000 (15:19 +0200)]
drivers/watchdog: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/w1/masters: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:53 +0000 (15:19 +0200)]
drivers/w1/masters: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/video/omap2/dss: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:53 +0000 (15:19 +0200)]
drivers/video/omap2/dss: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/video/omap2: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:53 +0000 (15:19 +0200)]
drivers/video/omap2: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/usb/phy: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:53 +0000 (15:19 +0200)]
drivers/usb/phy: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/usb/host: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:52 +0000 (15:19 +0200)]
drivers/usb/host: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
11 years agodrivers/usb/gadget: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:52 +0000 (15:19 +0200)]
drivers/usb/gadget: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/usb/chipidea: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:52 +0000 (15:19 +0200)]
drivers/usb/chipidea: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
11 years agodrivers/thermal: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:51 +0000 (15:19 +0200)]
drivers/thermal: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/staging/nvec: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:51 +0000 (15:19 +0200)]
drivers/staging/nvec: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/staging/dwc2: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:51 +0000 (15:19 +0200)]
drivers/staging/dwc2: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/spi: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:51 +0000 (15:19 +0200)]
drivers/spi: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/rtc: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:50 +0000 (15:19 +0200)]
drivers/rtc: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/pwm: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:50 +0000 (15:19 +0200)]
drivers/pwm: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/pinctrl: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:50 +0000 (15:19 +0200)]
drivers/pinctrl: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/net/ethernet/renesas: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:49 +0000 (15:19 +0200)]
drivers/net/ethernet/renesas: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/mtd/nand: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:49 +0000 (15:19 +0200)]
drivers/mtd/nand: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/misc: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:49 +0000 (15:19 +0200)]
drivers/misc: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/mfd: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:49 +0000 (15:19 +0200)]
drivers/mfd: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/memory: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:48 +0000 (15:19 +0200)]
drivers/memory: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/i2c/busses: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:48 +0000 (15:19 +0200)]
drivers/i2c/busses: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Barry Song <Baohua.Song@csr.com>
11 years agodrivers/gpu/host1x/drm: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:47 +0000 (15:19 +0200)]
drivers/gpu/host1x/drm: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/gpu/drm/exynos: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:47 +0000 (15:19 +0200)]
drivers/gpu/drm/exynos: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/gpio: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:47 +0000 (15:19 +0200)]
drivers/gpio: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/dma: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:47 +0000 (15:19 +0200)]
drivers/dma: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/cpufreq: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:46 +0000 (15:19 +0200)]
drivers/cpufreq: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
11 years agoMerge branch 'for-chris' of git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs...
Chris Mason [Sat, 18 May 2013 01:53:17 +0000 (21:53 -0400)]
Merge branch 'for-chris' of git://git./linux/kernel/git/josef/btrfs-next

11 years agoBtrfs: use a btrfs bioset instead of abusing bio internals
Chris Mason [Fri, 17 May 2013 22:30:14 +0000 (18:30 -0400)]
Btrfs: use a btrfs bioset instead of abusing bio internals

Btrfs has been pointer tagging bi_private and using bi_bdev
to store the stripe index and mirror number of failed IOs.

As bios bubble back up through the call chain, we use these
to decide if and how to retry our IOs.  They are also used
to count IO failures on a per device basis.

Recently a bio tracepoint was added lead to crashes because
we were abusing bi_bdev.

This commit adds a btrfs bioset, and creates explicit fields
for the mirror number and stripe index.  The plan is to
extend this structure for all of the fields currently in
struct btrfs_bio, which will mean one less kmalloc in
our IO path.

Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Reported-by: Tejun Heo <tj@kernel.org>
11 years agoBtrfs: make sure roots are assigned before freeing their nodes
Josef Bacik [Fri, 17 May 2013 18:06:51 +0000 (14:06 -0400)]
Btrfs: make sure roots are assigned before freeing their nodes

If we fail to load the chunk tree we'll call free_root_pointers, except we may
not have assigned the roots for the dev_root/extent_root/csum_root yet, so we
could NULL pointer deref at this point.  Just add checks to make sure these
roots are set to keep us from panicing.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: explicitly use global_block_rsv for quota_tree
Stefan Behrens [Thu, 16 May 2013 14:48:19 +0000 (14:48 +0000)]
Btrfs: explicitly use global_block_rsv for quota_tree

The quota_tree was set up to use the empty_block_rsv before
which would be problematic when the filesystem is filled up
and ENOSPC happens during internal operations while the quota
tree is updated and COWed (when the btrfs_qgroup_info_item
items) are written. In fact, use_block_rsv() which is used
in btrfs_cow_block() falls back to the global_block_rsv in
this case. But just in order to make it more clear what is
happening, change it to explicitly use the global_block_rsv.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agobtrfs: do away with non-whole_page extent I/O
Alexandre Oliva [Wed, 15 May 2013 15:38:55 +0000 (11:38 -0400)]
btrfs: do away with non-whole_page extent I/O

end_bio_extent_readpage computes whole_page based on bv_offset and
bv_len, without taking into account that blk_update_request may modify
them when some of the blocks to be read into a page produce a read
error.  This would cause the read to unlock only part of the file
range associated with the page, which would in turn leave the entire
page locked, which would not only keep the process blocked instead of
returning -EIO to it, but also prevent any further access to the file.

It turns out that btrfs always issues whole-page reads and writes.
The special handling of non-whole_page appears to be a mistake or a
left-over from a time when this wasn't the case.  Indeed,
end_bio_extent_writepage distinguished between whole_page and
non-whole_page writes but behaved identically in both cases!

I've replaced the whole_page computations with warnings, just to be
sure that we're not issuing partial page reads or writes.  The
warnings should probably just go away some time.

Signed-off-by: Alexandre Oliva <oliva@gnu.org>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: don't invoke btrfs_invalidate_inodes() in the spin lock context
Miao Xie [Wed, 15 May 2013 07:48:21 +0000 (07:48 +0000)]
Btrfs: don't invoke btrfs_invalidate_inodes() in the spin lock context

btrfs_invalidate_inodes() may sleep, so we should not invoke it in the
spin lock context. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: remove BUG_ON() in btrfs_read_fs_tree_no_radix()
Miao Xie [Wed, 15 May 2013 07:48:18 +0000 (07:48 +0000)]
Btrfs: remove BUG_ON() in btrfs_read_fs_tree_no_radix()

We have checked if ->node is NULL or not, so it is unnecessary to
use BUG_ON() to check again. Remove it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: pause the space balance when remounting to R/O
Miao Xie [Wed, 15 May 2013 07:48:17 +0000 (07:48 +0000)]
Btrfs: pause the space balance when remounting to R/O

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: fix unprotected root node of the subvolume's inode rb-tree
Miao Xie [Wed, 15 May 2013 07:48:16 +0000 (07:48 +0000)]
Btrfs: fix unprotected root node of the subvolume's inode rb-tree

The root node of the rb-tree may be changed, so we should get it under
the lock. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: fix accessing a freed tree root
Miao Xie [Wed, 15 May 2013 07:48:15 +0000 (07:48 +0000)]
Btrfs: fix accessing a freed tree root

inode_tree_del() will move the tree root into the dead root list, and
then the tree will be destroyed by the cleaner. So if we remove the
delayed node which is cached in the inode after inode_tree_del(),
we may access a freed tree root. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: return errno if possible when we fail to allocate memory
Liu Bo [Tue, 14 May 2013 02:12:15 +0000 (02:12 +0000)]
Btrfs: return errno if possible when we fail to allocate memory

We need to set return value explicitly, otherwise we'll lose the error
value.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: update the global reserve if it is empty
Miao Xie [Mon, 13 May 2013 13:55:12 +0000 (13:55 +0000)]
Btrfs: update the global reserve if it is empty

Before applying this patch, we reserved the space for the global reserve
by the minimum unit if we found it is empty, it was unreasonable and
inefficient, because if the global reserve space was depleted, it implied
that the size of the global reserve was too small. In this case, we shoud
update the global reserve and fill it.

Cc: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: don't steal the reserved space from the global reserve if their space type...
Miao Xie [Mon, 13 May 2013 13:55:11 +0000 (13:55 +0000)]
Btrfs: don't steal the reserved space from the global reserve if their space type is different

If the type of the space we need is different with the global reserve, we
can not steal the space from the global reserve, because we can not allocate
the space from the free space cache that the global reserve points to.

Cc: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: optimize the error handle of use_block_rsv()
Miao Xie [Mon, 13 May 2013 13:55:10 +0000 (13:55 +0000)]
Btrfs: optimize the error handle of use_block_rsv()

cc: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: don't use global block reservation for inode cache truncation
Miao Xie [Mon, 13 May 2013 13:55:09 +0000 (13:55 +0000)]
Btrfs: don't use global block reservation for inode cache truncation

It is very likely that there are lots of subvolumes/snapshots in the filesystem,
so if we use global block reservation to do inode cache truncation, we may hog
all the free space that is reserved in global rsv. So it is better that we do
the free space reservation for inode cache truncation by ourselves.

Cc: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: don't abort the current transaction if there is no enough space for inode...
Miao Xie [Mon, 13 May 2013 13:55:08 +0000 (13:55 +0000)]
Btrfs: don't abort the current transaction if there is no enough space for inode cache

The filesystem with inode cache was forced to be read-only when we umounted it.

Steps to reproduce:
 # mkfs.btrfs -f ${DEV}
 # mount -o inode_cache ${DEV} ${MNT}
 # dd if=/dev/zero of=${MNT}/file1 bs=1M count=8192
 # btrfs fi syn ${MNT}
 # dd if=${MNT}/file1 of=/dev/null bs=1M
 # rm -f ${MNT}/file1
 # btrfs fi syn ${MNT}
 # umount ${MNT}

It is because there was no enough space to do inode cache truncation, and then
we aborted the current transaction.

But no space error is not a serious problem when we write out the inode cache,
and it is safe that we just skip this step if we meet this problem. So we need
not abort the current transaction.

Reported-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Tested-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoCorrect allowed raid levels on balance.
Andreas Philipp [Sat, 11 May 2013 11:13:03 +0000 (11:13 +0000)]
Correct allowed raid levels on balance.

Raid5 with 3 devices is well defined while the old logic allowed
raid5 only with a minimum of 4 devices when converting the block group
profile via btrfs balance. Creating a raid5 with just three devices
using mkfs.btrfs worked always as expected. This is now fixed and the
whole logic is rewritten.

Signed-off-by: Andreas Philipp <philipp.andreas@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: fix possible memory leak in replace_path()
Stefan Behrens [Wed, 8 May 2013 08:56:09 +0000 (08:56 +0000)]
Btrfs: fix possible memory leak in replace_path()

In replace_path(), if read_tree_block() fails, we cannot return
directly, we should free some allocated memory otherwise memory
leak happens.

Similar to Wang's "Btrfs: fix possible memory leak in the
find_parent_nodes()" patch, the current commit fixes an issue that
is related to the "Btrfs: fix all callers of read_tree_block"
commit.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: fix possible memory leak in the find_parent_nodes()
Wang Shilong [Wed, 8 May 2013 08:10:25 +0000 (08:10 +0000)]
Btrfs: fix possible memory leak in the find_parent_nodes()

In the find_parent_nodes(), if read_tree_block() fails, we can
not return directly, we should free some allocated memory otherwise
memory leak happens.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: don't allow device replace on RAID5/RAID6
Stefan Behrens [Tue, 7 May 2013 17:28:03 +0000 (17:28 +0000)]
Btrfs: don't allow device replace on RAID5/RAID6

This is not yet supported and causes crashes. One sad user reported
that it destroyed his filesystem.

One failure is in __btrfs_map_block+0xc1f calling kmalloc(0).

0x5f21f is in __btrfs_map_block (fs/btrfs/volumes.c:4923).
4918                            num_stripes = map->num_stripes;
4919                            max_errors = nr_parity_stripes(map);
4920
4921                            raid_map = kmalloc(sizeof(u64) * num_stripes,
4922                                               GFP_NOFS);
4923                            if (!raid_map) {
4924                                    ret = -ENOMEM;
4925                                    goto out;
4926                            }
4927

There might be more issues. Until this is really tested, don't allow
users to start the procedure on RAID5/RAID6 filesystems.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: handle running extent ops with skinny metadata
Josef Bacik [Thu, 9 May 2013 17:49:30 +0000 (13:49 -0400)]
Btrfs: handle running extent ops with skinny metadata

Chris hit a bug where we weren't finding extent records when running extent ops.
This is because we use the delayed_ref_head when running the extent op, which
means we can't use the ->type checks to see if we are metadata.  We also lose
the level of the metadata we are working on.  So to fix this we can just check
the ->is_data section of the extent_op, and we can store the level of the buffer
we were modifying in the extent_op.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: remove warn on in free space cache writeout
Josef Bacik [Wed, 8 May 2013 20:44:57 +0000 (16:44 -0400)]
Btrfs: remove warn on in free space cache writeout

This catches block groups that are too large to properly cache.  We deal with
this case fine, so the warning just confuses users.  Remove the warning.
Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: don't null pointer deref on abort
Josef Bacik [Wed, 8 May 2013 17:30:11 +0000 (13:30 -0400)]
Btrfs: don't null pointer deref on abort

I'm sorry, theres no excuse for this sort of work.  We need to use
root->leafsize since eb may be NULL.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agobtrfs: don't stop searching after encountering the wrong item
Gabriel de Perthuis [Mon, 6 May 2013 17:40:18 +0000 (17:40 +0000)]
btrfs: don't stop searching after encountering the wrong item

The search ioctl skips items that are too large for a result buffer, but
inline items of a certain size occuring before any search result is
found would trigger an overflow and stop the search entirely.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=57641

Cc: stable@vger.kernel.org
Signed-off-by: Gabriel de Perthuis <g2p.code+btrfs@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: fix off-by-one in fiemap
Liu Bo [Wed, 1 May 2013 16:23:41 +0000 (16:23 +0000)]
Btrfs: fix off-by-one in fiemap

lock_extent/unlock_extent expect an exclusive end.

Tested-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agobtrfs: annotate quota tree for lockdep
David Sterba [Tue, 30 Apr 2013 17:29:29 +0000 (17:29 +0000)]
btrfs: annotate quota tree for lockdep

Quota tree has been missing from lockdep annotations, though no warning
has been seen in the wild.

There's currently one entry that does not belong there,
BTRFS_ORPHAN_OBJECTID.  No such tree exists, it's probably a copy &
paste mistake, the id is defined among tree ids.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoMIPS: ralink: use the dwc2 driver for the rt305x USB controller
Matthijs Kooijman [Thu, 9 May 2013 06:32:09 +0000 (06:32 +0000)]
MIPS: ralink: use the dwc2 driver for the rt305x USB controller

This sets up the devicetree file for the rt3050 chip series and rt3052
eval board to use the right compatible string for the dwc2 driver.

Acked-by: John Crispin <blogic@openwrt.org>
Cc: blogic@openwrt.org
Cc: linux-mips@linux-mips.org
Cc: Matthijs Kooijman <matthijs@stdin.nl>
Patchwork: https://patchwork.linux-mips.org/patch/5226/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: Extract schedule_mfi info from __schedule
Tony Wu [Sun, 12 May 2013 15:05:34 +0000 (15:05 +0000)]
MIPS: Extract schedule_mfi info from __schedule

schedule_mfi is supposed to be extracted from schedule(), and
is used in thread_saved_pc and get_wchan.

But, after optimization, schedule() is reduced to a sibling
call to __schedule(), and no real frame info can be extracted.

One solution is to compile schedule() with -fno-omit-frame-pointer
and -fno-optimize-sibling-calls, but that will incur performance
degradation.

Another solution is to extract info from the real scheduler,
__schedule, and this is the approache adopted here.

This patch reads the __schedule address by either following
the 'j' call in schedule if KALLSYMS is disabled or by using
kallsyms_lookup_name to lookup __schedule if KALLSYMS is
available, then, extracts schedule_mfi from __schedule frame info.

This patch also fixes the "Can't analyze schedule() prologue"
warning at boot time.

Signed-off-by: Tony Wu <tung7970@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5237/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: Fix sibling call handling in get_frame_info
Tony Wu [Sun, 12 May 2013 15:04:29 +0000 (15:04 +0000)]
MIPS: Fix sibling call handling in get_frame_info

Given a function, get_frame_info() analyzes its instructions
to figure out frame size and return address. get_frame_info()
works as follows:

1. analyze up to 128 instructions if the function size is unknown
2. search for 'addiu/daddiu sp,sp,-immed' for frame size
3. search for 'sw ra,offset(sp)' for return address
4. end search when it sees jr/jal/jalr

This leads to an issue when the given function is a sibling
call, example shown as follows.

801ca110 <schedule>:
801ca110:       8f820000        lw      v0,0(gp)
801ca114:       8c420000        lw      v0,0(v0)
801ca118:       080726f0        j       801c9bc0 <__schedule>
801ca11c:       00000000        nop

801ca120 <io_schedule>:
801ca120:       27bdffe8        addiu   sp,sp,-24
801ca124:       3c028022        lui     v0,0x8022
801ca128:       afbf0014        sw      ra,20(sp)

In this case, get_frame_info() cannot properly detect schedule's
frame info, and eventually returns io_schedule's instead.

This patch adds 'j' to the end search condition to workaround
sibling call cases.

Signed-off-by: Tony Wu <tung7970@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5236/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: MSP71xx: remove inline marking of EXPORT_SYMBOL functions
Denis Efremov [Thu, 9 May 2013 09:36:57 +0000 (09:36 +0000)]
MIPS: MSP71xx: remove inline marking of EXPORT_SYMBOL functions

EXPORT_SYMBOL and inline directives are contradictory to each other.
The patch fixes this inconsistency.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Denis Efremov <yefremov.denis@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: trivial@kernel.org
Cc: ldv-project@linuxtesting.org
Patchwork: https://patchwork.linux-mips.org/patch/5227/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: Make virt_to_phys() work for all unmapped addresses.
David Daney [Tue, 7 May 2013 17:11:16 +0000 (17:11 +0000)]
MIPS: Make virt_to_phys() work for all unmapped addresses.

As reported:
  This problem was discovered when doing BGP traffic with the TCP MD5 option
  activated, where the following call chain caused a crash:

   * tcp_v4_rcv
   *  tcp_v4_timewait_ack
   *   tcp_v4_send_ack -> follow stack variable rep.th
   *    tcp_v4_md5_hash_hdr
   *     tcp_md5_hash_header
   *      sg_init_one
   *       sg_set_buf
   *        virt_to_page

  I noticed that tcp_v4_send_reset uses a similar stack variable and
  also calls tcp_v4_md5_hash_hdr, so it has the same problem.

The networking core can indirectly call virt_to_phys() on stack
addresses, if this is done from PID 0, the stack will usually be in
CKSEG0, so virt_to_phys() needs to work there as well

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: Jiang Liu <liuj97@gmail.com>
Cc: eunb.song@samsung.com
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/5220/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: Fix build error for crash_dump.c in 3.10-rc1
EunBong Song [Mon, 13 May 2013 00:16:55 +0000 (00:16 +0000)]
MIPS: Fix build error for crash_dump.c in 3.10-rc1

This patch fixes crash_dump.c build error. Build error logs are as follow.

arch/mips/kernel/crash_dump.c: In function 'kdump_buf_page_init':
arch/mips/kernel/crash_dump.c:67: error: implicit declaration of function 'kmalloc'
arch/mips/kernel/crash_dump.c:67: error: assignment makes pointer from integer without a cast

Signed-off-by: EunBong Song <eunb.song@samsung.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/5238/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: Xway: Fix clk leak
Libo Chen [Fri, 17 May 2013 05:21:31 +0000 (05:21 +0000)]
MIPS: Xway: Fix clk leak

When gptu_r32 fails, we should put clk before returning.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: grant.likely@linaro.org
Cc: rob.herring@calxeda.com,
Cc: linux-mips@linux-mips.org
Cc: LKML linux-kernel@vger.kernel.org
Cc: Andrew Morton akpm@linux-foundation.org
Cc: Li Zefan lizefan@huawei.com
Patchwork: https://patchwork.linux-mips.org/patch/5247/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoarm64: debug: fix mdscr.ss check when enabling debug exceptions
Will Deacon [Fri, 17 May 2013 16:41:22 +0000 (17:41 +0100)]
arm64: debug: fix mdscr.ss check when enabling debug exceptions

When we take an exception at EL1, we only want to enable debug
exceptions if we're not currently stepping, otherwise we can easily get
stuck in a loop stepping into interrupt handlers.

Unfortunately, the current code tests the wrong bit in the mdscr, so fix
that.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
11 years agoMerge tag 'sound-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Fri, 17 May 2013 14:17:48 +0000 (07:17 -0700)]
Merge tag 'sound-3.10' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A fairly calm update at this time, as seen in the short log, only one
  fix per person: including,

   - a few ASoC fixes (da7213 dmic, ux500 AD slot, wm0010 error path)
   - a copule of HD-audio fixes
   - a few other misc fixes (MIPS allmodconfig, proc output in usb, old
     PowerBook support)"

* tag 'sound-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: proc: use found syncmaxsize to determine feedback format
  ALSA: hda - Add headset mic support for another Dell machine
  ALSA: snd-aoa: Add a layout entry for PowerBook6,5
  ALSA: hda - Check the activity of the NID to be powered down
  sound: Fix make allmodconfig on MIPS correctly
  ASoC: da7213: Fix setting dmic_samplephase and dmic_clk_rate
  ASoC: ux500: Swap even/odd AD slot definitions
  ASoC: wm0010: fix error return code in wm0010_boot()

11 years agokmemleak: No need for scanning specific module sections
Steven Rostedt [Wed, 15 May 2013 19:46:23 +0000 (20:46 +0100)]
kmemleak: No need for scanning specific module sections

As kmemleak now scans all module sections that are allocated, writable
and non executable, there's no need to scan individual sections that
might reference data.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
11 years agokmemleak: Scan all allocated, writeable and not executable module sections
Steven Rostedt [Wed, 15 May 2013 19:33:01 +0000 (20:33 +0100)]
kmemleak: Scan all allocated, writeable and not executable module sections

Instead of just picking data sections by name (names that start
with .data, .bss or .ref.data), use the section flags and scan all
sections that are allocated, writable and not executable. Which should
cover all sections of a module that might reference data.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
[catalin.marinas@arm.com: removed unused 'name' variable]
[catalin.marinas@arm.com: collapsed 'if' blocks]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
11 years agoALSA: usb-audio: proc: use found syncmaxsize to determine feedback format
Torstein Hegge [Thu, 16 May 2013 18:26:17 +0000 (20:26 +0200)]
ALSA: usb-audio: proc: use found syncmaxsize to determine feedback format

freqshift is only set for the data endpoint and syncmaxsize is only set
for the sync endpoint. This results in a syncmaxsize of zero used in the
proc output feedback format calculation, which gives a feedback format
incorrectly shown as 8.16 for UAC2 devices.

As neither the data nor the sync endpoint gives all the relevant
content, output the two combined.

Also remove the sync_endpoint "packet size" which is always zero
and the sync_endpoint "momentary freq" which is constant.

Tested with UAC2 async and UAC1 adaptive, not tested with UAC1 async.

Reported-by: B. Zhang <bb.zhang@free.fr>
Signed-off-by: Torstein Hegge <hegge@resisty.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agoMerge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 17 May 2013 02:01:46 +0000 (19:01 -0700)]
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "Fix for radeon nomodeset regression, old radeon interface cliprects
  fix, 2 qxl crasher fixes, and a couple of minor cleanups.

  I may have a new AMD hw support branch next week, its one of those
  doesn't affect anything existing just adds new support, I'll see how
  it shapes up and I might ask you to take it, just thought I'd warn in
  advance."

* 'drm-next' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon: restore nomodeset operation (v2)
  qxl: fix bug with object eviction and update area
  drm/qxl: drop active_user_framebuffer as its unneeded
  qxl: drop unused variable.
  drm/qxl: fix ioport interactions for kernel submitted commands.
  drm: remove unused wrapper macros
  drm/radeon: check incoming cliprects pointer

11 years agodrm/radeon: restore nomodeset operation (v2)
Dave Airlie [Wed, 15 May 2013 01:23:36 +0000 (01:23 +0000)]
drm/radeon: restore nomodeset operation (v2)

When UMS was deprecated it removed support for nomodeset commandline
we really want this in distro land so we can debug stuff, everyone
should fallback to vesa correctly.

v2: oops -1 isn't used anymore, restore original behaviour
-1 is default, so we can boot with nomodeset on the command line,
then use radeon.modeset=1 to override it for debugging later.

Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agoqxl: fix bug with object eviction and update area
Dave Airlie [Thu, 9 May 2013 04:07:10 +0000 (05:07 +0100)]
qxl: fix bug with object eviction and update area

if the surface is evicted, this validation will happen
to the wrong place, I noticed this with other work I was
doing, haven't seen it go wrong in practice.

Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm/qxl: drop active_user_framebuffer as its unneeded
Dave Airlie [Mon, 13 May 2013 02:48:40 +0000 (12:48 +1000)]
drm/qxl: drop active_user_framebuffer as its unneeded

This was a bogus way to figure out what the active framebuffer was,
just check if the underlying bo is the primary bo.

Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agoqxl: drop unused variable.
Dave Airlie [Mon, 13 May 2013 02:42:26 +0000 (12:42 +1000)]
qxl: drop unused variable.

this boolean isn't used anymore so drop it.

Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm/qxl: fix ioport interactions for kernel submitted commands.
Dave Airlie [Tue, 14 May 2013 01:13:24 +0000 (02:13 +0100)]
drm/qxl: fix ioport interactions for kernel submitted commands.

So qxl has ioports, but it really really really doesn't want you
to write to them twice, but if you write and get a signal before
the irq arrives to let you know its completed, you have to think
ahead and avoid writing another time.

However this works fine for update area where really multiple
writes aren't the end of the world, however with create primary
surface, you can't ever do multiple writes. So this stop internal
kernel writes from doing interruptible waits, because otherwise
we have no idea if this write is a new one or a continuation of
a previous one.

virtual hw sucks more than real hw.

This fixes lockups and VM crashes when resizing and starting/stopping
X.

Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agoMerge tag 'pm+acpi-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Thu, 16 May 2013 22:12:34 +0000 (15:12 -0700)]
Merge tag 'pm+acpi-3.10-rc2' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management and ACPI fixes from Rafael Wysocki:

 - intel_pstate driver fixes and cleanups from Dirk Brandewie and Wei
   Yongjun.

 - cpufreq fixes related to ARM big.LITTLE support and the cpufreq-cpu0
   driver from Viresh Kumar.

 - Assorted cpufreq fixes from Srivatsa S Bhat, Borislav Petkov, Wolfram
   Sang, Alexander Shiyan, and Nishanth Menon.

 - Assorted ACPI fixes from Catalin Marinas, Lan Tianyu, Alex Hung,
   Jan-Simon Möller, and Rafael J Wysocki.

 - Fix for a kfree() under spinlock in the PM core from Shuah Khan.

 - PM documentation updates from Borislav Petkov and Zhang Rui.

* tag 'pm+acpi-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (30 commits)
  cpufreq: Preserve sysfs files across suspend/resume
  ACPI / scan: Fix memory leak on acpi_scan_init_hotplug() error path
  PM / hibernate: Correct documentation
  PM / Documentation: remove inaccurate suspend/hibernate transition lantency statement
  PM: Documentation update for freeze state
  cpufreq / intel_pstate: use vzalloc() instead of vmalloc()/memset(0)
  cpufreq, ondemand: Remove leftover debug line
  PM: Avoid calling kfree() under spinlock in dev_pm_put_subsys_data()
  cpufreq / kirkwood: don't check resource with devm_ioremap_resource
  cpufreq / intel_pstate: remove #ifdef MODULE compile fence
  cpufreq / intel_pstate: Remove idle mode PID
  cpufreq / intel_pstate: fix ffmpeg regression
  cpufreq / intel_pstate: use lowest requested max performance
  cpufreq / intel_pstate: remove idle time and duration from sample and calculations
  cpufreq: Fix incorrect dependecies for ARM SA11xx drivers
  cpufreq: ARM big LITTLE: Fix Kconfig entries
  cpufreq: cpufreq-cpu0: Free parent node for error cases
  cpufreq: cpufreq-cpu0: defer probe when regulator is not ready
  cpufreq: Issue CPUFREQ_GOV_POLICY_EXIT notifier before dropping policy refcount
  cpufreq: governors: Fix CPUFREQ_GOV_POLICY_{INIT|EXIT} notifiers
  ...

11 years agoMerge tag 'ntb-bugfixes-3.10' of git://github.com/jonmason/ntb
Linus Torvalds [Thu, 16 May 2013 22:07:25 +0000 (15:07 -0700)]
Merge tag 'ntb-bugfixes-3.10' of git://github.com/jonmason/ntb

Pull NTB update from Jon Mason:
 "NTB bug fixes to address Smatch/Coverity errors, link toggling bugs,
  and a few corner cases in the driver."

This pull request came in during the merge window, but without any
signage etc.  So I'm taking it late, because it wasn't _originally_
late.

* tag 'ntb-bugfixes-3.10' of git://github.com/jonmason/ntb:
  NTB: Multiple NTB client fix
  ntb_netdev: remove from list on exit
  NTB: memcpy lockup workaround
  NTB: Correctly handle receive buffers of the minimal size
  NTB: reset tx_index on link toggle
  NTB: Link toggle memory leak
  NTB: Handle 64bit BAR sizes
  NTB: fix pointer math issues
  ntb: off by one sanity checks
  NTB: variable dereferenced before check

11 years agoMerge branch 'ipmi' (minor ipmi fixes from Corey)
Linus Torvalds [Thu, 16 May 2013 20:49:51 +0000 (13:49 -0700)]
Merge branch 'ipmi' (minor ipmi fixes from Corey)

Merge ipmi fixes from Corey Minyard:
 "Some minor fixes I had queued up.  The last one came in recently
  (patch 4) and it and patch 2 are candidates for stable-kernel."

* emailed patches from Corey Minyard <cminyard@mvista.com>:
  ipmi: ipmi_devintf: compat_ioctl method fails to take ipmi_mutex
  ipmi: Improve error messages on failed irq enable
  drivers/char/ipmi: memcpy, need additional 2 bytes to avoid memory overflow
  drivers: char: ipmi: Replaced kmalloc and strcpy with kstrdup

11 years agoipmi: ipmi_devintf: compat_ioctl method fails to take ipmi_mutex
Benjamin LaHaise [Thu, 16 May 2013 19:04:27 +0000 (14:04 -0500)]
ipmi: ipmi_devintf: compat_ioctl method fails to take ipmi_mutex

When a 32 bit version of ipmitool is used on a 64 bit kernel, the
ipmi_devintf code fails to correctly acquire ipmi_mutex.  This results in
incomplete data being retrieved in some cases, or other possible failures.
Add a wrapper around compat_ipmi_ioctl() to take ipmi_mutex to fix this.

Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>