pandora-kernel.git
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt...
Linus Torvalds [Sat, 17 Apr 2010 21:28:50 +0000 (14:28 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/anholt/drm-intel

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
  drm/i915: Ignore LVDS EDID when it is unavailabe or invalid
  drm/i915: Add no_lvds entry for the Clientron U800
  drm/i915: Rename many remaining uses of "output" to encoder or connector.
  drm/i915: Rename intel_output to intel_encoder.
  agp/intel: intel_845_driver is an agp driver!
  drm/i915: introduce to_intel_bo helper
  drm/i915: Disable FBC on 915GM and 945GM.

11 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Sat, 17 Apr 2010 17:58:38 +0000 (10:58 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI: EC: Limit burst to 64 bits

11 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Sat, 17 Apr 2010 17:57:56 +0000 (10:57 -0700)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: don't warn on EAGAIN in inode reclaim
  xfs: ensure that sync updates the log tail correctly

11 years agoMerge branch 'bugzilla-15749' into release
Len Brown [Fri, 16 Apr 2010 20:08:07 +0000 (16:08 -0400)]
Merge branch 'bugzilla-15749' into release

11 years agoACPI: EC: Limit burst to 64 bits
Alexey Starikovskiy [Fri, 16 Apr 2010 19:36:40 +0000 (15:36 -0400)]
ACPI: EC: Limit burst to 64 bits

access_bit_width field is u8 in ACPICA, thus 256 value written to it
becomes 0, causing divide by zero later.

Proper fix would be to remove access_bit_width at all, just because
we already have access_byte_width, which is access_bit_width / 8.
Limit access width to 64 bit for now.

https://bugzilla.kernel.org/show_bug.cgi?id=15749
fixes regression caused by the fix for:
https://bugzilla.kernel.org/show_bug.cgi?id=14667

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
11 years agoxfs: don't warn on EAGAIN in inode reclaim
Dave Chinner [Tue, 13 Apr 2010 05:06:45 +0000 (15:06 +1000)]
xfs: don't warn on EAGAIN in inode reclaim

Any inode reclaim flush that returns EAGAIN will result in the inode
reclaim being attempted again later. There is no need to issue a
warning into the logs about this situation.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
11 years agoxfs: ensure that sync updates the log tail correctly
Dave Chinner [Tue, 13 Apr 2010 05:06:44 +0000 (15:06 +1000)]
xfs: ensure that sync updates the log tail correctly

Updates to the VFS layer removed an extra ->sync_fs call into the
filesystem during the sync process (from the quota code).
Unfortunately the sync code was unknowingly relying on this call to
make sure metadata buffers were flushed via a xfs_buftarg_flush()
call to move the tail of the log forward in memory before the final
transactions of the sync process were issued.

As a result, the old code would write a very recent log tail value
to the log by the end of the sync process, and so a subsequent crash
would leave nothing for log recovery to do. Hence in qa test 182,
log recovery only replayed a small handle for inode fsync
transactions in this case.

However, with the removal of the extra ->sync_fs call, the log tail
was now not moved forward with the inode fsync transactions near the
end of the sync procese the first (and only) buftarg flush occurred
after these transactions went to disk. The result is that log
recovery now sees a large number of transactions for metadata that
is already on disk.

This usually isn't a problem, but when the transactions include
inode chunk allocation, the inode create transactions and all
subsequent changes are replayed as we cannt rely on what is on disk
is valid. As a result, if the inode was written and contains
unlogged changes, the unlogged changes are lost, thereby violating
sync semantics.

The fix is to always issue a transaction after the buftarg flush
occurs is the log iѕ not idle or covered. This results in a dummy
transaction being written that contains the up-to-date log tail
value, which will be very recent. Indeed, it will be at least as
recent as the old code would have left on disk, so log recovery
will behave exactly as it used to in this situation.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
Linus Torvalds [Fri, 16 Apr 2010 14:26:31 +0000 (07:26 -0700)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] max63xx driver depends on ioremap()
  [WATCHDOG] max63xx: be careful when disabling the watchdog
  [WATCHDOG] fixed book E watchdog period register mask.
  [WATCHDOG] omap4: Fix WDT Kconfig

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 16 Apr 2010 14:25:48 +0000 (07:25 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ASoC: imx-ssi: do not call hrtimer_disable in trigger function
  ALSA: hda - Add position_fix quirk for Biostar mobo
  ALSA: hda - add a quirk for Clevo M570U laptop
  ASoC: imx-ssi: increase minimum periods to 4
  ALSA: hda - Avoid invalid "Independent HP" control for VIA codecs
  ALSA: hda - Fix control element allocations in VIA codec parser
  ALSA: aaci - Fix alignment faults on ARM Cortex introduced by commit 29a4f2d3
  ALSA: hda - Add fix-up for Sony VAIO with ALC269
  ALSA: hda - Enhance fix-up table for Realtek codecs
  ALSA: usb - Fix Oops after usb-midi disconnection
  ALSA: hda - Fix initial capture source connections of ALC880/260
  ALSA: hda - Fix setup for ALC269vb amic and dmic models
  ALSA: hda - Fix auto-parser of ALC269vb for HP pin NID 0x21
  ASoC: imx-ssi: Use a hrtimer in FIQ mode
  ASoC: imx-pcm-dma-mx2: restart DMA after an error
  ASoC: imx-ssi: honor IMX_SSI_DMA flag
  ASoC: wm2000: remove unused #include <linux/version.h>
  ALSA: hda: Add support for Medion WIM2160

11 years ago[WATCHDOG] max63xx driver depends on ioremap()
Geert Uytterhoeven [Wed, 7 Apr 2010 17:57:02 +0000 (19:57 +0200)]
[WATCHDOG] max63xx driver depends on ioremap()

Correct fix for the "ioremap() causes build failure on S390" should have been
a dependancy on HAS_IOMEM. So we add this dependancy also (and leave the driver
in the ARM section for now).

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
11 years ago[WATCHDOG] max63xx: be careful when disabling the watchdog
Marc Zyngier [Fri, 9 Apr 2010 16:43:33 +0000 (17:43 +0100)]
[WATCHDOG] max63xx: be careful when disabling the watchdog

When shutting down the watchdog timer, special care must be taken
not to overwrite other bits in the register, as it may be shared
with other peripherals.

For example, on the Arcom Vulcan, the register is shared between
the watchdog and the PCI reset line...

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
11 years ago[WATCHDOG] fixed book E watchdog period register mask.
Luuk Paulussen [Thu, 15 Apr 2010 03:59:10 +0000 (15:59 +1200)]
[WATCHDOG] fixed book E watchdog period register mask.

A previous fix changed the WDTP function to use the period directly,
rather than subtracting from 63.  However the mask generation was
not changed, so the mask was coming out as 0.  This patch fixes it.

Signed-off-by: Luuk Paulussen <luuk.paulussen@alliedtelesis.co.nz>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
11 years ago[WATCHDOG] omap4: Fix WDT Kconfig
Santosh Shilimkar [Wed, 7 Apr 2010 07:47:22 +0000 (13:17 +0530)]
[WATCHDOG] omap4: Fix WDT Kconfig

This patch allows Watchdog timer to be selected for OMAP4 by fixing
Kconfig entry

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
11 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Fri, 16 Apr 2010 08:03:48 +0000 (10:03 +0200)]
Merge branch 'fix/hda' into for-linus

11 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Fri, 16 Apr 2010 08:03:42 +0000 (10:03 +0200)]
Merge branch 'fix/misc' into for-linus

11 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Fri, 16 Apr 2010 08:03:36 +0000 (10:03 +0200)]
Merge branch 'fix/asoc' into for-linus

11 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 15 Apr 2010 19:20:56 +0000 (12:20 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86/gart: Disable GART explicitly before initialization
  dma-debug: Cleanup for copy-loop in filter_write()
  x86/amd-iommu: Remove obsolete parameter documentation
  x86/amd-iommu: use for_each_pci_dev
  Revert "x86: disable IOMMUs on kernel crash"
  x86/amd-iommu: warn when issuing command to uninitialized cmd buffer
  x86/amd-iommu: enable iommu before attaching devices
  x86/amd-iommu: Use helper function to destroy domain
  x86/amd-iommu: Report errors in acpi parsing functions upstream
  x86/amd-iommu: Pt mode fix for domain_destroy
  x86/amd-iommu: Protect IOMMU-API map/unmap path
  x86/amd-iommu: Remove double NULL check in check_device

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
Linus Torvalds [Thu, 15 Apr 2010 18:56:20 +0000 (11:56 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: cdev: change license of exported header files to MIT license
  firewire: cdev: comment fixlet
  firewire: cdev: iso packet documentation
  firewire: cdev: fix information leak
  firewire: cdev: require quadlet-aligned headers for transmit packets
  firewire: cdev: disallow receive packets without header

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Thu, 15 Apr 2010 18:49:55 +0000 (11:49 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - switch mode upon system resume
  Revert "Input: wacom - merge out and in prox events"
  Input: matrix_keypad - allow platform to disable key autorepeat
  Input: ALPS - add signature for HP Pavilion dm3 laptops
  Input: i8042 - spelling fix
  Input: sparse-keymap - implement safer freeing of the keymap
  Input: update the status of the Multitouch X driver project
  Input: clarify the no-finger event in multitouch protocol
  Input: bcm5974 - retract efi-broken suspend_resume
  Input: sparse-keymap - free the right keymap on error

11 years agoInput: wacom - switch mode upon system resume
Ping Cheng [Wed, 14 Apr 2010 06:07:52 +0000 (23:07 -0700)]
Input: wacom - switch mode upon system resume

When Wacom devices wake up from a sleep, the switch mode command
(wacom_query_tablet_data) is needed before wacom_open is called.
wacom_query_tablet_data should not be executed inside wacom_open
since wacom_open is called more than once during probe.

wacom_retrieve_hid_descriptor is removed from wacom_resume due
to the fact that the required descriptors are stored properly
upon system resume.

Reported-and-tested-by: Anton Anikin <Anton@Anikin.name>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
11 years agoASoC: imx-ssi: do not call hrtimer_disable in trigger function
Sascha Hauer [Wed, 14 Apr 2010 07:17:30 +0000 (09:17 +0200)]
ASoC: imx-ssi: do not call hrtimer_disable in trigger function

Doing so causes a deadlock, so just signal the timer to stop
using an atomic variable.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
11 years agofirewire: cdev: change license of exported header files to MIT license
Stefan Richter [Sun, 11 Apr 2010 09:52:12 +0000 (11:52 +0200)]
firewire: cdev: change license of exported header files to MIT license

Among else, this allows projects like libdc1394 to carry copies of the
ABI related header files without them or distributors having to worry
about effects on the project's overall license terms.  Switch to MIT
license as suggested by Kristian.  Also update the year in the
copyright statement according to source history.

Cc: Jay Fenlason <fenlason@redhat.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
11 years agoALSA: hda - Add position_fix quirk for Biostar mobo
Takashi Iwai [Thu, 15 Apr 2010 07:02:41 +0000 (09:02 +0200)]
ALSA: hda - Add position_fix quirk for Biostar mobo

The Biostar mobo seems to give a wrong DMA position, resulting in
stuttering or skipping sounds on 2.6.34.  Since the commit
7b3a177b0d4f92b3431b8dca777313a07533a710, "ALSA: pcm_lib: fix "something
must be really wrong" condition", makes the position check more strictly,
the DMA position problem is revealed more clearly now.

The fix is to use only LPIB for obtaining the position, i.e. passing
position_fix=1.  This patch adds a static quirk to achieve it as default.

Reported-by: Frank Griffin <ftg@roadrunner.com>
Cc: Eric Piel <Eric.Piel@tremplin-utc.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agoALSA: hda - add a quirk for Clevo M570U laptop
Joerg Schirottke [Thu, 15 Apr 2010 06:37:41 +0000 (08:37 +0200)]
ALSA: hda - add a quirk for Clevo M570U laptop

Added the matching model for Clevo laptop M570U.

Signed-off-by: Joerg Schirottke <master@kanotix.com>
Tested-by: Maximilian Gerhard <maxbox@directbox.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Thu, 15 Apr 2010 01:46:03 +0000 (18:46 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  SELinux: Reduce max avtab size to avoid page allocation failures

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Thu, 15 Apr 2010 01:45:31 +0000 (18:45 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: use separate class for ceph sockets' sk_lock
  ceph: reserve one more caps space when doing readdir
  ceph: queue_cap_snap should always queue dirty context
  ceph: fix dentry reference leak in dcache readdir
  ceph: decode v5 of osdmap (pool names) [protocol change]
  ceph: fix ack counter reset on connection reset
  ceph: fix leaked inode ref due to snap metadata writeback race
  ceph: fix snap context reference leaks
  ceph: allow writeback of snapped pages older than 'oldest' snapc
  ceph: fix dentry rehashing on virtual .snap dir

11 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
Linus Torvalds [Thu, 15 Apr 2010 01:45:14 +0000 (18:45 -0700)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/jdelvare/staging

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (applesmc) Switch maintainers
  hwmon: (applesmc) Add iMac9,1 and MacBookPro2,2 support
  hwmon: (it87) Invalidate cache on temperature sensor change
  hwmon: (it87) Properly handle wrong sensor type requests
  hwmon: (it87) Don't arbitrarily enable temperature channels
  hwmon: (sht15) Properly handle the case CONFIG_REGULATOR=n
  hwmon: (sht15) Fix sht15_calc_temp interpolation function

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
Linus Torvalds [Thu, 15 Apr 2010 01:44:29 +0000 (18:44 -0700)]
Merge git://git./linux/kernel/git/rusty/linux-2.6-for-linus

* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  lguest: stop using KVM hypercall mechanism
  lguest: workaround cmpxchg8b_emu by ignoring cli in the guest.

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux...
Linus Torvalds [Thu, 15 Apr 2010 01:44:00 +0000 (18:44 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/geert/linux-m68k

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Fix asm constraints for atomic_sub_and_test() and atomic_add_negative()
  m68k: Fix `struct sigcontext' for ColdFire

11 years agoASoC: imx-ssi: increase minimum periods to 4
Sascha Hauer [Wed, 14 Apr 2010 07:17:31 +0000 (09:17 +0200)]
ASoC: imx-ssi: increase minimum periods to 4

Currently the notification of elapsed periods is not very exact.
Increase minimum periods to 4 as suggested by Liam Girdwood.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
11 years agoSELinux: Reduce max avtab size to avoid page allocation failures
Stephen Smalley [Mon, 15 Mar 2010 14:42:11 +0000 (10:42 -0400)]
SELinux: Reduce max avtab size to avoid page allocation failures

Reduce MAX_AVTAB_HASH_BITS so that the avtab allocation is an order 2
allocation rather than an order 4 allocation on x86_64.  This
addresses reports of page allocation failures:
http://marc.info/?l=selinux&m=126757230625867&w=2
https://bugzilla.redhat.com/show_bug.cgi?id=570433

Reported-by: Russell Coker <russell@coker.com.au>
Signed-off-by: Stephen D. Smalley <sds@tycho.nsa.gov>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
11 years agom68k: Fix asm constraints for atomic_sub_and_test() and atomic_add_negative()
Geert Uytterhoeven [Sun, 21 Mar 2010 09:52:21 +0000 (10:52 +0100)]
m68k: Fix asm constraints for atomic_sub_and_test() and atomic_add_negative()

Recently, we started seeing this on allmodconfig builds:

  CC      mm/memcontrol.o
{standard input}: Assembler messages:
{standard input}:4076: Error: operands mismatch -- statement `subl 12(%fp),170(%a0)' ignored

Correct the asm constraint, like done for m68knommu.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
11 years agom68k: Fix `struct sigcontext' for ColdFire
Maxim Kuvyrkov [Wed, 3 Mar 2010 13:53:45 +0000 (16:53 +0300)]
m68k: Fix `struct sigcontext' for ColdFire

LibSegFault uses piggybacks sc_fpstate field of the `struct sigcontext'
and this patch avoids LibSegFault overflowing this field.  Also this
removes an unnecessary divergence from classic m68k.

Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
11 years agovsprintf: Change struct printf_spec.precision from s8 to s16
Joe Perches [Wed, 14 Apr 2010 16:27:40 +0000 (09:27 -0700)]
vsprintf: Change struct printf_spec.precision from s8 to s16

Commit ef0658f3de484bf9b173639cd47544584e01efa5 changed precision
from int to s8.

There is existing kernel code that uses a larger precision.

An example from the audit code:
vsnprintf(...,..., " msg='%.1024s'", (char *)data);
which overflows precision and truncates to nothing.

Extending precision size fixes the audit system issue.

Other changes:

Change the size of the struct printf_spec.type from u16 to u8 so
sizeof(struct printf_spec) stays as small as possible.
Reorder the struct members so sizeof(struct printf_spec) remains 64 bits
without alignment holes.
Document the struct members a bit more.

Original-patch-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agohwmon: (applesmc) Switch maintainers
Henrik Rydberg [Wed, 14 Apr 2010 14:14:11 +0000 (16:14 +0200)]
hwmon: (applesmc) Switch maintainers

Nicolas has expressed a wish to be relieved from the maintenance
of applesmc, so we simply switch maintainer with this patch.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Nicolas Boichat <nicolas@boichat.ch>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
11 years agohwmon: (applesmc) Add iMac9,1 and MacBookPro2,2 support
Justin P. Mattock [Wed, 14 Apr 2010 14:14:10 +0000 (16:14 +0200)]
hwmon: (applesmc) Add iMac9,1 and MacBookPro2,2 support

Add the iMac9,1 and the MacBookPro2,2 temperature sensors to hwmon
driver applesmc to fix kernel bug #14429:
https://bugzilla.kernel.org/show_bug.cgi?id=14429

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Acked-by: Nicolas Boichat <nicolas@boichat.ch>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
11 years agohwmon: (it87) Invalidate cache on temperature sensor change
Jean Delvare [Wed, 14 Apr 2010 14:14:10 +0000 (16:14 +0200)]
hwmon: (it87) Invalidate cache on temperature sensor change

When any temperature sensor type is changed, the corresponding
temperature value needs to be updated. The register caching mechanism
may delay this update, so we want to invalidate the cache to force an
immediate update.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
11 years agohwmon: (it87) Properly handle wrong sensor type requests
Jean Delvare [Wed, 14 Apr 2010 14:14:09 +0000 (16:14 +0200)]
hwmon: (it87) Properly handle wrong sensor type requests

Currently, if someone tries to set the thermal sensor type to an
unsupported value, subsequent accesses to the chip may temporarily
show the sensor in question as disabled. Use a temporary variable
and only update the cached value on success, to prevent such
confusion.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
11 years agohwmon: (it87) Don't arbitrarily enable temperature channels
Jean Delvare [Wed, 14 Apr 2010 14:14:09 +0000 (16:14 +0200)]
hwmon: (it87) Don't arbitrarily enable temperature channels

Temperature channels can be used in 2 different modes (thermistor and
thermal diode) and we don't know which one, if any, is correct for
every given board. So don't arbitrarily choose one. Instead, leave the
temperature channels untouched. They can be configured from user-space
if needed anyway.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
11 years agohwmon: (sht15) Properly handle the case CONFIG_REGULATOR=n
Jean Delvare [Wed, 14 Apr 2010 14:14:08 +0000 (16:14 +0200)]
hwmon: (sht15) Properly handle the case CONFIG_REGULATOR=n

When CONFIG_REGULATOR isn't set, regulator_get_voltage() returns 0.
Properly handle this case by not trusting the value.

Reported-by: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
11 years agohwmon: (sht15) Fix sht15_calc_temp interpolation function
Jerome Oufella [Wed, 14 Apr 2010 14:14:07 +0000 (16:14 +0200)]
hwmon: (sht15) Fix sht15_calc_temp interpolation function

I discovered two issues.
First the previous sht15_calc_temp() loop did not iterate through the
temppoints array since the (data->supply_uV > temppoints[i - 1].vdd)
test is always true in this direction.

Also the two-points linear interpolation function was returning biased
values due to a stray division by 1000 which shouldn't be there.

[JD: Also change the default value for d1 from 0 to something saner.]

Signed-off-by: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org
11 years agoALSA: hda - Avoid invalid "Independent HP" control for VIA codecs
Takashi Iwai [Wed, 14 Apr 2010 12:36:23 +0000 (14:36 +0200)]
ALSA: hda - Avoid invalid "Independent HP" control for VIA codecs

Some VIA codecs have no multiple source selection for headphone pins,
thus it's useless (and wrong) to create "Independent HP" control on them.

This patch adds the check of connections to skip the control in such a
case.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agoALSA: hda - Fix control element allocations in VIA codec parser
Takashi Iwai [Wed, 14 Apr 2010 12:33:57 +0000 (14:33 +0200)]
ALSA: hda - Fix control element allocations in VIA codec parser

The commit 5b0cb1d850c26893b1468b3a519433a1b7a176be
    ALSA: hda - add more NID->Control mapping
breaks the control element allocation by returning a wrong value.
Let's fix it.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agolguest: stop using KVM hypercall mechanism
Rusty Russell [Thu, 15 Apr 2010 03:43:54 +0000 (21:43 -0600)]
lguest: stop using KVM hypercall mechanism

This is a partial revert of 4cd8b5e2a159 "lguest: use KVM hypercalls";
we revert to using (just as questionable but more reliable) int $15 for
hypercalls.  I didn't revert the register mapping, so we still use the
same calling convention as kvm.

KVM in more recent incarnations stopped injecting a fault when a guest
tried to use the VMCALL instruction from ring 1, so lguest under kvm
fails to make hypercalls.  It was nice to share code with our KVM
cousins, but this was overreach.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Matias Zabaljauregui <zabaljauregui@gmail.com>
Cc: Avi Kivity <avi@redhat.com>
11 years agolguest: workaround cmpxchg8b_emu by ignoring cli in the guest.
Rusty Russell [Thu, 15 Apr 2010 03:43:53 +0000 (21:43 -0600)]
lguest: workaround cmpxchg8b_emu by ignoring cli in the guest.

It's only used by cmpxchg8b_emu (see db677ffa5f5a for the gory
details), and fixing that to be paravirt aware would be more work than
simply ignoring it (and AFAICT only help lguest).  This makes lguest
work on machines which have cmpxchg8b, for kernels compiled for older
processors.

(We can't emulate it properly: the popf which expects to restore interrupts
does not trap).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: virtualization@lists.osdl.org
11 years agoRevert "Input: wacom - merge out and in prox events"
Dmitry Torokhov [Wed, 14 Apr 2010 06:08:58 +0000 (23:08 -0700)]
Revert "Input: wacom - merge out and in prox events"

This reverts commit 776943fd6f104a6e8457dc95a17282e69e963666 as it
causes issues with ISDv4 E3 touchscreens:

https://bugzilla.kernel.org/show_bug.cgi?id=15670

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
11 years agoMerge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspe...
Linus Torvalds [Wed, 14 Apr 2010 00:49:48 +0000 (17:49 -0700)]
Merge branch 'pm-fixes' of git://git./linux/kernel/git/rafael/suspend-2.6

* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  PM / Hibernate: user.c, fix SNAPSHOT_SET_SWAP_AREA handling

11 years agoMerge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
Linus Torvalds [Tue, 13 Apr 2010 22:10:16 +0000 (15:10 -0700)]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFSv4: fix delegated locking
  NFS: Ensure that the WRITE and COMMIT RPC calls are always uninterruptible
  NFS: Fix a race with the new commit code
  NFS: Ensure that writeback_single_inode() calls write_inode() when syncing
  NFS: Fix the mode calculation in nfs_find_open_context
  NFSv4: Fall back to ordinary lookup if nfs4_atomic_open() returns EISDIR

11 years agoceph: use separate class for ceph sockets' sk_lock
Sage Weil [Tue, 13 Apr 2010 21:07:07 +0000 (14:07 -0700)]
ceph: use separate class for ceph sockets' sk_lock

Use a separate class for ceph sockets to prevent lockdep confusion.
Because ceph sockets only get passed kernel pointers, there is no
dependency from sk_lock -> mmap_sem.  If we share the same class as other
sockets, lockdep detects a circular dependency from

mmap_sem (page fault) -> fs mutex -> sk_lock -> mmap_sem

because dependencies are noted from both ceph and user contexts.  Using
a separate class prevents the sk_lock(ceph) -> mmap_sem dependency and
makes lockdep happy.

Signed-off-by: Sage Weil <sage@newdream.net>
11 years agoceph: reserve one more caps space when doing readdir
Yehuda Sadeh [Tue, 13 Apr 2010 18:45:56 +0000 (11:45 -0700)]
ceph: reserve one more caps space when doing readdir

We were missing space for the directory cap.  The result was a BUG at
fs/ceph/caps.c:2178.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
11 years agoceph: queue_cap_snap should always queue dirty context
Sage Weil [Tue, 13 Apr 2010 18:41:22 +0000 (11:41 -0700)]
ceph: queue_cap_snap should always queue dirty context

This simplifies the calling convention, and fixes a bug where we queue a
capsnap with a context other than i_head_snapc (the one that matches the
dirty pages).  The result was a BUG at fs/ceph/caps.c:2178 on writeback
completion when a capsnap matching the writeback snapc could not be found.

Signed-off-by: Sage Weil <sage@newdream.net>
11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Tue, 13 Apr 2010 18:34:05 +0000 (11:34 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Add some more commentary to __raw_local_irq_save()
  sparc64: Fix memory leak in pci_register_iommu_region().
  sparc64: Add kmemleak annotation to sun4v_build_virq()
  sparc64: Support kmemleak.
  sparc64: Add function graph tracer support.
  sparc64: Give a stack frame to the ftrace call sites.
  sparc64: Use a seperate counter for timer interrupts and NMI checks, like x86.
  sparc64: Remove profiling from some low-level bits.
  sparc64: Kill unnecessary static on local var in ftrace_call_replace().
  sparc64: Kill CONFIG_STACK_DEBUG code.
  sparc64: Add HAVE_FUNCTION_TRACE_MCOUNT_TEST and tidy up.
  sparc64: Adjust __raw_local_irq_save() to cooperate in NMIs.
  sparc64: Use kstack_valid() in die_if_kernel().

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Tue, 13 Apr 2010 18:32:48 +0000 (11:32 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits)
  smc91c92_cs: define multicast_table as unsigned char
  can: avoids a false warning
  e1000e: stop cleaning when we reach tx_ring->next_to_use
  igb: restrict WoL for 82576 ET2 Quad Port Server Adapter
  virtio_net: missing sg_init_table
  Revert "tcp: Set CHECKSUM_UNNECESSARY in tcp_init_nondata_skb"
  iwlwifi: need check for valid qos packet before free
  tcp: Set CHECKSUM_UNNECESSARY in tcp_init_nondata_skb
  udp: fix for unicast RX path optimization
  myri10ge: fix rx_pause in myri10ge_set_pauseparam
  net: corrected documentation for hardware time stamping
  stmmac: use resource_size()
  x.25 attempts to negotiate invalid throughput
  x25: Patch to fix bug 15678 - x25 accesses fields beyond end of packet.
  bridge: Fix IGMP3 report parsing
  cnic: Fix crash during bnx2x MTU change.
  qlcnic: fix set mac addr
  r6040: fix r6040_multicast_list
  vhost-net: fix vq_memory_access_ok error checking
  ath9k: fix double calls to ath_radio_enable
  ...

11 years agoMerge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro...
Ingo Molnar [Tue, 13 Apr 2010 11:24:54 +0000 (13:24 +0200)]
Merge branch 'iommu/fixes' of git://git./linux/kernel/git/joro/linux-2.6-iommu into x86/urgent

11 years agosmc91c92_cs: define multicast_table as unsigned char
Ken Kawasaki [Sat, 10 Apr 2010 12:50:14 +0000 (12:50 +0000)]
smc91c92_cs: define multicast_table as unsigned char

smc91c92_cs:
  * define multicast_table as unsigned char
  * remove unnecessary "#ifndef final_version"

Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocan: avoids a false warning
Eric Dumazet [Fri, 9 Apr 2010 23:47:31 +0000 (23:47 +0000)]
can: avoids a false warning

At this point optlen == sizeof(sfilter) but some compilers are dumb.

Reported-by: Németh Márton <nm127@freemail.h
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoe1000e: stop cleaning when we reach tx_ring->next_to_use
Terry Loftin [Fri, 9 Apr 2010 10:29:49 +0000 (10:29 +0000)]
e1000e: stop cleaning when we reach tx_ring->next_to_use

Tx ring buffers after tx_ring->next_to_use are volatile and could
change, possibly causing a crash.  Stop cleaning when we hit
tx_ring->next_to_use.

Signed-off-by: Terry Loftin <terry.loftin@hp.com>
Acked-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoigb: restrict WoL for 82576 ET2 Quad Port Server Adapter
Stefan Assmann [Fri, 9 Apr 2010 09:51:34 +0000 (09:51 +0000)]
igb: restrict WoL for 82576 ET2 Quad Port Server Adapter

Restrict Wake-on-LAN to first port on 82576 ET2 quad port NICs, as it is
only supported there.

Signed-off-by: Stefan Assmann <sassmann@redhat.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Add some more commentary to __raw_local_irq_save()
David S. Miller [Tue, 13 Apr 2010 08:50:43 +0000 (01:50 -0700)]
sparc64: Add some more commentary to __raw_local_irq_save()

Suggested by Peter Zijlstra

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoALSA: aaci - Fix alignment faults on ARM Cortex introduced by commit 29a4f2d3
Philby John [Fri, 26 Mar 2010 16:07:51 +0000 (21:37 +0530)]
ALSA: aaci - Fix alignment faults on ARM Cortex introduced by commit 29a4f2d3

The commit 29a4f2d3 used writel() at offset 0x26 which is
half-word aligned causing unaligned exceptions on a
Cortex-A8. The original patch solved the "aaci-pl041 fpga:04:
ac97 read back fail" issue on a soft reset. Reading from any
arbitrary aaci register seems to solve this issue.

Signed-off-by: Philby John <pjohn@mvista.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agoMerge branch 'master' of /home/davem/src/GIT/linux-2.6/
David S. Miller [Tue, 13 Apr 2010 07:28:45 +0000 (00:28 -0700)]
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/

Conflicts:
lib/Kconfig.debug

11 years agosparc64: Fix memory leak in pci_register_iommu_region().
David S. Miller [Sun, 11 Apr 2010 03:26:55 +0000 (20:26 -0700)]
sparc64: Fix memory leak in pci_register_iommu_region().

Found by kmemleak.

If request_resource() fails, we leak the struct resource we
allocated to represent the IOMMU mapping area.

This actually happens on sun4v machines because the IOMEM area is only
reported sans the IOMMU region, unlike all previous systems.  I'll
need to fix that at some point, but for now fix the leak.

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Add kmemleak annotation to sun4v_build_virq()
David S. Miller [Sun, 11 Apr 2010 03:24:22 +0000 (20:24 -0700)]
sparc64: Add kmemleak annotation to sun4v_build_virq()

The only reference we store to this memory is in the form of a
physical address, so kmemleak can't see it.

Add a kmemleak_not_leak() annotation.

It's probably useful to be able to look at a dump of these things
either via debugfs or similar, and thus we could at some point store
them in some kind of table and therefore get rid of this annotation.

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Support kmemleak.
David S. Miller [Fri, 9 Apr 2010 07:14:35 +0000 (00:14 -0700)]
sparc64: Support kmemleak.

Only missing thing was an _sdata marker in vmlinux.lds.S

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Add function graph tracer support.
David S. Miller [Wed, 7 Apr 2010 11:41:33 +0000 (04:41 -0700)]
sparc64: Add function graph tracer support.

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Give a stack frame to the ftrace call sites.
David S. Miller [Wed, 7 Apr 2010 02:59:46 +0000 (19:59 -0700)]
sparc64: Give a stack frame to the ftrace call sites.

It's the only way we'll be able to implement the function
graph tracer properly.

A positive is that we no longer have to worry about the
linker over-optimizing the tail call, since we don't
use a tail call any more.

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Use a seperate counter for timer interrupts and NMI checks, like x86.
David S. Miller [Wed, 7 Apr 2010 00:38:52 +0000 (17:38 -0700)]
sparc64: Use a seperate counter for timer interrupts and NMI checks, like x86.

This keeps us from having to use kstat_irqs_cpu() from the NMI handler,
the former of which is a profiled function.

Instead we use a currently empty slot in the cpu_data

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Remove profiling from some low-level bits.
David S. Miller [Wed, 7 Apr 2010 00:34:15 +0000 (17:34 -0700)]
sparc64: Remove profiling from some low-level bits.

These include the timer implementation, perf events support, and the
performance counter register (pcr) programming layer.

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Kill unnecessary static on local var in ftrace_call_replace().
David S. Miller [Wed, 7 Apr 2010 00:32:08 +0000 (17:32 -0700)]
sparc64: Kill unnecessary static on local var in ftrace_call_replace().

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Kill CONFIG_STACK_DEBUG code.
David S. Miller [Tue, 13 Apr 2010 05:36:03 +0000 (22:36 -0700)]
sparc64: Kill CONFIG_STACK_DEBUG code.

The generic stack tracer does this job just as well.

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Add HAVE_FUNCTION_TRACE_MCOUNT_TEST and tidy up.
David S. Miller [Tue, 13 Apr 2010 05:35:24 +0000 (22:35 -0700)]
sparc64: Add HAVE_FUNCTION_TRACE_MCOUNT_TEST and tidy up.

Check function_trace_stop at ftrace_caller

Toss mcount_call and dummy call of ftrace_stub, unnecessary.

Document problems we'll have if the final kernel image link
ever turns on relaxation.

Properly size 'ftrace_call' so it looks right when inspecting
instructions under gdb et al.

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Adjust __raw_local_irq_save() to cooperate in NMIs.
David S. Miller [Tue, 13 Apr 2010 05:21:52 +0000 (22:21 -0700)]
sparc64: Adjust __raw_local_irq_save() to cooperate in NMIs.

If we are in an NMI then doing a plain raw_local_irq_disable() will
write PIL_NORMAL_MAX into %pil, which is lower than PIL_NMI, and thus
we'll re-enable NMIs and recurse.

Doing a simple:

%pil = %pil | PIL_NORMAL_MAX

does what we want, if we're already at PIL_NMI (15) we leave it at
that setting, else we set it to PIL_NORMAL_MAX (14).

This should get the function tracer working on sparc64.

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosparc64: Use kstack_valid() in die_if_kernel().
David S. Miller [Tue, 13 Apr 2010 05:16:22 +0000 (22:16 -0700)]
sparc64: Use kstack_valid() in die_if_kernel().

This gets rid of a local function (is_kernel_stack()) which tries to
do the same thing, yet poorly in that it doesn't handle IRQ stacks
properly.

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovirtio_net: missing sg_init_table
Shirley Ma [Mon, 29 Mar 2010 15:19:15 +0000 (15:19 +0000)]
virtio_net: missing sg_init_table

Add missing sg_init_table for sg_set_buf in virtio_net which
induced in defer skb patch.

Reported-by: Thomas Müller <thomas@mathtm.de>
Tested-by: Thomas Müller <thomas@mathtm.de>
Signed-off-by: Shirley Ma <xma@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoLinux 2.6.34-rc4 v2.6.34-rc4
Linus Torvalds [Tue, 13 Apr 2010 01:41:35 +0000 (18:41 -0700)]
Linux 2.6.34-rc4

11 years agoMerge branch 'anonvma'
Linus Torvalds [Tue, 13 Apr 2010 01:39:58 +0000 (18:39 -0700)]
Merge branch 'anonvma'

* anonvma:
  anonvma: when setting up page->mapping, we need to pick the _oldest_ anonvma
  anon_vma: clone the anon_vma chain in the right order
  vma_adjust: fix the copying of anon_vma chains
  Simplify and comment on anon_vma re-use for anon_vma_prepare()

11 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Tue, 13 Apr 2010 01:37:34 +0000 (18:37 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm: (21 commits)
  ARM: Fix ioremap_cached()/ioremap_wc() for SMP platforms
  ARM: 6043/1: AT91 slow-clock resume: Don't wait for a disabled PLL to lock
  ARM: 6031/1: fix Thumb-2 decompressor
  ARM: 6029/1: ep93xx: gpio.c: local functions should be static
  ARM: 6028/1: ARM: add MAINTAINERS for U300
  ARM: 6024/1: bcmring: fix missing down on semaphore in dma.c
  MXC: mach_armadillo5x0: Add USB Host support.
  ARM mach-mx3: duplicated include
  ARM mach-mx3: duplicated include
  imx31: add watchdog device on litekit board.
  imx3: Add watchdog platform device support
  MXC: mach-mx31_3ds: add support for freescale mc13783 power management device.
  MXC: mach-mx31_3ds: Add SPI1 device support.
  MXC: mach-mx31_3ds: Add support for on board NAND Flash.
  MXC: mach-mx31_3ds: Update variable names over recent mach name modification.
  imx31: fix parent clock for rtc
  i.MX51: remove NFC AXI static mapping
  i.MX51: determine silicon revision dynamically
  i.MX51: map TZIC dynamically
  i.MX51: Use correct clock for gpt
  ...

11 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs...
Linus Torvalds [Tue, 13 Apr 2010 01:37:04 +0000 (18:37 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/mason/btrfs-unstable

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: make sure the chunk allocator doesn't create zero length chunks
  Btrfs: fix data enospc check overflow

11 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Tue, 13 Apr 2010 01:36:49 +0000 (18:36 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  quota: Fix possible dq_flags corruption
  quota: Hide warnings about writes to the filesystem before quota was turned on
  ext3: symlink must be handled via filesystem specific operation
  ext2: symlink must be handled via filesystem specific operation

11 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Tue, 13 Apr 2010 01:36:34 +0000 (18:36 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-udf-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6:
  udf: add speciffic ->setattr callback
  udf: potential integer overflow

11 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Tue, 13 Apr 2010 01:36:11 +0000 (18:36 -0700)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (36 commits)
  MIPS: Calculate proper ebase value for 64-bit kernels
  MIPS: Alchemy: DB1200: Remove custom wait implementation
  MIPS: Big Sur: Make defconfig more useful.
  MIPS: Fix __vmalloc() etc. on MIPS for non-GPL modules
  MIPS: Sibyte: Fix M3 TLB exception handler workaround.
  MIPS: BCM63xx: Fix build failure in board_bcm963xx.c
  MIPS: uasm: Add OR instruction.
  MIPS: Sibyte: Apply M3 workaround only on affected chip types and versions.
  MIPS: BCM63xx: Initialize gpio_out_low & out_high to current value at boot.
  MIPS: BCM63xx: Register SSB SPROM fallback in board's first stage callback
  MIPS: BCM63xx: Fix typo in cpu-feature-overrides file.
  MIPS: BCM63xx: Add support for second uart.
  MIPS: BCM63xx: Fix double gpio registration.
  MIPS: BCM63xx: Add DWVS0 board
  MIPS: BCM63xx: Add the RTA1025W-16 BCM6348-based board to suppported boards.
  MIPS: BCM63xx: Fix BCM6338 and BCM6345 gpio count
  MIPS: libgcc.h: Checkpatch cleanup
  MIPS: Loongson-2F: Flush the branch target history in BTB and RAS
  MIPS: Move signal trampolines off of the stack.
  MIPS: Preliminary VDSO
  ...

11 years agoMerge branch 'for-2.6.34' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Tue, 13 Apr 2010 01:34:56 +0000 (18:34 -0700)]
Merge branch 'for-2.6.34' of git://linux-nfs.org/~bfields/linux

* 'for-2.6.34' of git://linux-nfs.org/~bfields/linux:
  svcrdma: RDMA support not yet compatible with RPC6

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke...
Linus Torvalds [Tue, 13 Apr 2010 01:34:25 +0000 (18:34 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ryusuke/nilfs2

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  nilfs2: fix typo "numer" -> "number" in alloc.c
  nilfs2: Remove an uninitialization warning in nilfs_btree_propagate_v()
  nilfs2: fix a wrong type conversion in nilfs_ioctl()

11 years agoanonvma: when setting up page->mapping, we need to pick the _oldest_ anonvma
Linus Torvalds [Mon, 12 Apr 2010 19:44:29 +0000 (12:44 -0700)]
anonvma: when setting up page->mapping, we need to pick the _oldest_ anonvma

Otherwise we might be mapping in a page in a new mapping, but that page
(through the swapcache) would later be mapped into an old mapping too.
The page->mapping must be the case that works for everybody, not just
the mapping that happened to page it in first.

Here's the scenario:

 - page gets allocated/mapped by process A. Let's call the anon_vma we
   associate the page with 'A' to keep it easy to track.

 - Process A forks, creating process B. The anon_vma in B is 'B', and has
   a chain that looks like 'B' -> 'A'. Everything is fine.

 - Swapping happens. The page (with mapping pointing to 'A') gets swapped
   out (perhaps not to disk - it's enough to assume that it's just not
   mapped any more, and lives entirely in the swap-cache)

 - Process B pages it in, which goes like this:

        do_swap_page ->
          page = lookup_swap_cache(entry);
         ...
          set_pte_at(mm, address, page_table, pte);
          page_add_anon_rmap(page, vma, address);

   And think about what happens here!

   In particular, what happens is that this will now be the "first"
   mapping of that page, so page_add_anon_rmap() used to do

        if (first)
                __page_set_anon_rmap(page, vma, address);

   and notice what anon_vma it will use? It will use the anon_vma for
   process B!

   What happens then? Trivial: process 'A' also pages it in (nothing
   happens, it's not the first mapping), and then process 'B' execve's
   or exits or unmaps, making anon_vma B go away.

   End result: process A has a page that points to anon_vma B, but
   anon_vma B does not exist any more.  This can go on forever.  Forget
   about RCU grace periods, forget about locking, forget anything like
   that.  The bug is simply that page->mapping points to an anon_vma
   that was correct at one point, but was _not_ the one that was shared
   by all users of that possible mapping.

Changing it to always use the deepest anon_vma in the anonvma chain gets
us to the safest model.

This can be improved in certain cases: if we know the page is private to
just this particular mapping (for example, it's a new page, or it is the
only swapcache entry), we could pick the top (most specific) anon_vma.

But that's a future optimization. Make it _work_ reliably first.

Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Tested-by: Borislav Petkov <bp@alien8.de> [ "What do you know, I think you fixed it!" ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoanon_vma: clone the anon_vma chain in the right order
Linus Torvalds [Mon, 12 Apr 2010 00:15:03 +0000 (17:15 -0700)]
anon_vma: clone the anon_vma chain in the right order

We want to walk the chain in reverse order when cloning it, so that the
order of the result chain will be the same as the order in the source
chain.  When we add entries to the chain, they go at the head of the
chain, so we want to add the source head last.

Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Tested-by: Borislav Petkov <bp@alien8.de> [ "No, it still oopses" ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agovma_adjust: fix the copying of anon_vma chains
Linus Torvalds [Sat, 10 Apr 2010 22:22:30 +0000 (15:22 -0700)]
vma_adjust: fix the copying of anon_vma chains

When we move the boundaries between two vma's due to things like
mprotect, we need to make sure that the anon_vma of the pages that got
moved from one vma to another gets properly copied around.  And that was
not always the case, in this rather hard-to-follow code sequence.

Clarify the code, and fix it so that it copies the anon_vma from the
right source.

Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Tested-by: Borislav Petkov <bp@alien8.de> [ "Yeah, not so much this one either" ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoSimplify and comment on anon_vma re-use for anon_vma_prepare()
Linus Torvalds [Sat, 10 Apr 2010 17:36:19 +0000 (10:36 -0700)]
Simplify and comment on anon_vma re-use for anon_vma_prepare()

This changes the anon_vma reuse case to require that we only reuse
simple anon_vma's - ie the case when the vma only has a single anon_vma
associated with it.

This means that a reuse of an anon_vma from an adjacent vma will always
guarantee that both vma's are associated not only with the same
anon_vma, they will also have the same anon_vma chain (of just a single
entry in this case).

And since anon_vma re-use was the only case where the same anon_vma
might be associated with different chains of anon_vma's, we now have the
case that every vma that shares the same anon_vma will always also have
the same chain.  That makes it much easier to think about merging vma's
that share the same anon_vma's: you can always just drop the other
anon_vma chain in anon_vma_merge() since you know that they are always
identical.

This also splits up the function to validate the anon_vma re-use, and
adds a lot of commentary about the possible races.

Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Tested-by: Borislav Petkov <bp@alien8.de> [ "That didn't fix it" ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoceph: fix dentry reference leak in dcache readdir
Sage Weil [Mon, 12 Apr 2010 21:24:28 +0000 (14:24 -0700)]
ceph: fix dentry reference leak in dcache readdir

When filldir returned an error (e.g. buffer full for a large directory),
we would leak a dentry reference, causing an oops on umount.

Signed-off-by: Sage Weil <sage@newdream.net>
11 years agoquota: Fix possible dq_flags corruption
Andrew Perepechko [Mon, 12 Apr 2010 18:16:50 +0000 (22:16 +0400)]
quota: Fix possible dq_flags corruption

dq_flags are modified non-atomically in do_set_dqblk via __set_bit calls and
atomically for example in mark_dquot_dirty or clear_dquot_dirty.  Hence a
change done by an atomic operation can be overwritten by a change done by a
non-atomic one. Fix the problem by using atomic bitops even in do_set_dqblk.

Signed-off-by: Andrew Perepechko <andrew.perepechko@sun.com>
Signed-off-by: Jan Kara <jack@suse.cz>
11 years agoquota: Hide warnings about writes to the filesystem before quota was turned on
Jan Kara [Tue, 6 Apr 2010 16:52:47 +0000 (18:52 +0200)]
quota: Hide warnings about writes to the filesystem before quota was turned on

For a root filesystem write to the filesystem before quota is turned on happens
regularly and there's no way around it because of writes to syslog, /etc/mtab,
and similar. So the warning is rather pointless for ordinary users. It's
still useful during development so we just hide the warning behind
__DQUOT_PARANOIA config option.

Signed-off-by: Jan Kara <jack@suse.cz>
11 years agoext3: symlink must be handled via filesystem specific operation
Dmitry Monakhov [Fri, 26 Mar 2010 16:29:55 +0000 (19:29 +0300)]
ext3: symlink must be handled via filesystem specific operation

generic setattr implementation is no longer responsible for
quota transfer so synlinks must be handled via ext3_setattr.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
11 years agoext2: symlink must be handled via filesystem specific operation
Dmitry Monakhov [Fri, 26 Mar 2010 16:29:54 +0000 (19:29 +0300)]
ext2: symlink must be handled via filesystem specific operation

generic setattr implementation is no longer responsible for
quota transfer so synlinks must be handled via ext2_setattr.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
11 years agoMIPS: Calculate proper ebase value for 64-bit kernels
David Daney [Tue, 6 Apr 2010 20:29:50 +0000 (13:29 -0700)]
MIPS: Calculate proper ebase value for 64-bit kernels

The ebase is relative to CKSEG0 not CAC_BASE.  On a 32-bit kernel they
are the same thing, for a 64-bit kernel they are not.

It happens to kind of work on a 64-bit kernel as they both reference
the same physical memory.  However since the CPU uses the CKSEG0 base,
determining if a J instruction will reach always gives the wrong result
unless we use the same number the CPU uses.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1093/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: Alchemy: DB1200: Remove custom wait implementation
Manuel Lauss [Sat, 3 Apr 2010 15:07:03 +0000 (17:07 +0200)]
MIPS: Alchemy: DB1200: Remove custom wait implementation

While playing with the out-of-tree MAE driver module, the system would
panic after a while in the db1200 custom wait code after wakeup due to
a clobbered k0 register being used as target address of a store op.

Remove the custom wait implementation and revert back to the Alchemy-
recommended implementation already set as default.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1092/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: Big Sur: Make defconfig more useful.
Ralf Baechle [Sat, 3 Apr 2010 09:59:52 +0000 (10:59 +0100)]
MIPS: Big Sur: Make defconfig more useful.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: Fix __vmalloc() etc. on MIPS for non-GPL modules
Anton Altaparmakov [Thu, 25 Mar 2010 20:48:12 +0000 (20:48 +0000)]
MIPS: Fix __vmalloc() etc. on MIPS for non-GPL modules

Commit b3594a089f1c17ff919f8f78505c3f20e1f6f8ce (lmo) rsp.
351336929ccf222ae38ff0cb7a8dd5fd5c6236a0 (kernel.org) break non-GPL modules
that use __vmalloc() or any of the vmap(), vm_map_ram(), etc functions on
MIPS.

All those functions are EXPORT_SYMBOL() so are meant to be allowed to be
used by non-GPL kernel modules.  These calls all take page protection as
an argument which is normally a constant like PAGE_KERNEL.

This commit causes all protection constants like PAGE_KERNEL to not be
constants and instead to contain the GPL-only symbol _page_cachable_default.

This means that all calls to __vmalloc(), vmap(), etc, cause non-GPL
modules to fail to link with the complaint that they are trying to use the
GPL-only symbol _page_cachable_default...

Change EXPORT_SYMBOL_GPL(_page_cachable_default) to EXPORT_SYMBOL() for
non-GPL modules that call __vmalloc(), vmap(), vm_map_ram() etc.

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
Cc: Chris Dearman <chris@mips.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/1084/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: Sibyte: Fix M3 TLB exception handler workaround.
Ralf Baechle [Tue, 23 Mar 2010 16:56:38 +0000 (17:56 +0100)]
MIPS: Sibyte: Fix M3 TLB exception handler workaround.

The M3 workaround needs to cmpare the region and VPN2 fields only.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: BCM63xx: Fix build failure in board_bcm963xx.c
Florian Fainelli [Tue, 23 Mar 2010 09:30:08 +0000 (10:30 +0100)]
MIPS: BCM63xx: Fix build failure in board_bcm963xx.c

Since 2083e8327aeeaf818b0e4522a9d2539835c60423, the SPROM is now registered
in the board_prom_init callback, but it references variables and functions
which are declared below.  Move the variables and functions above
board_prom_init.

Signed-off-by: Florian Fainelli <ffainelli@freebox.fr>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1077/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: uasm: Add OR instruction.
Ralf Baechle [Tue, 23 Mar 2010 14:54:50 +0000 (15:54 +0100)]
MIPS: uasm: Add OR instruction.

This is needed for the fix of the M3 workaround.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
11 years agoMIPS: Sibyte: Apply M3 workaround only on affected chip types and versions.
Ralf Baechle [Mon, 22 Mar 2010 23:02:43 +0000 (00:02 +0100)]
MIPS: Sibyte: Apply M3 workaround only on affected chip types and versions.

Previously it was unconditionally used on all Sibyte family SOCs.  The
M3 bug has to be handled in the TLB exception handler which is extremly
performance sensitive, so this modification is expected to deliver around
2-3% performance improvment.  This is important as required changes to the
M3 workaround will make it more costly.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>