Commit Graph

155344 Commits

Author SHA1 Message Date
Artem Bityutskiy
dd0d9a46f5 AFS: Fix compilation warning
Fix the following warning:

  fs/afs/dir.c: In function 'afs_d_revalidate':
  fs/afs/dir.c:567: warning: 'fid.vnode' may be used uninitialized in this function
  fs/afs/dir.c:567: warning: 'fid.unique' may be used uninitialized in this function

by marking the 'fid' variable as an uninitialized_var.  The problem is
that gcc doesn't always manage to work out that fid is always set on the
path through the function that uses it.

Cc: linux-afs@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-12 12:24:07 -07:00
Alexey Dobriyan
405f55712d headers: smp_lock.h redux
* Remove smp_lock.h from files which don't need it (including some headers!)
* Add smp_lock.h to files which do need it
* Make smp_lock.h include conditional in hardirq.h
  It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

  This will make hardirq.h inclusion cheaper for every PREEMPT=n config
  (which includes allmodconfig/allyesconfig, BTW)

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-12 12:22:34 -07:00
Julien Tinnes
f9fabcb58a personality: fix PER_CLEAR_ON_SETID
We have found that the current PER_CLEAR_ON_SETID mask on Linux doesn't
include neither ADDR_COMPAT_LAYOUT, nor MMAP_PAGE_ZERO.

The current mask is READ_IMPLIES_EXEC|ADDR_NO_RANDOMIZE.

We believe it is important to add MMAP_PAGE_ZERO, because by using this
personality it is possible to have the first page mapped inside a
process running as setuid root.  This could be used in those scenarios:

 - Exploiting a NULL pointer dereference issue in a setuid root binary
 - Bypassing the mmap_min_addr restrictions of the Linux kernel: by
   running a setuid binary that would drop privileges before giving us
   control back (for instance by loading a user-supplied library), we
   could get the first page mapped in a process we control.  By further
   using mremap and mprotect on this mapping, we can then completely
   bypass the mmap_min_addr restrictions.

Less importantly, we believe ADDR_COMPAT_LAYOUT should also be added
since on x86 32bits it will in practice disable most of the address
space layout randomization (only the stack will remain randomized).

Signed-off-by: Julien Tinnes <jt@cr0.org>
Signed-off-by: Tavis Ormandy <taviso@sdf.lonestar.org>
Cc: stable@kernel.org
Acked-by: Christoph Hellwig <hch@infradead.org>
Acked-by: Kees Cook <kees@ubuntu.com>
Acked-by: Eugene Teo <eugene@redhat.com>
[ Shortened lines and fixed whitespace as per Christophs' suggestion ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-12 12:21:33 -07:00
Linus Torvalds
a137802ee8 Don't use '-fwrapv' compiler option: it's buggy in gcc-4.1.x
This causes kernel images that don't run init to completion with certain
broken gcc versions.

This fixes kernel bugzilla entry:
	http://bugzilla.kernel.org/show_bug.cgi?id=13012

I suspect the gcc problem is this:
	http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28230

Fix the problem by using the -fno-strict-overflow flag instead, which
not only does not exist in the known-to-be-broken versions of gcc (it
was introduced later than fwrapv), but seems to be much less disturbing
to gcc too: the difference in the generated code by -fno-strict-overflow
are smaller (compared to using neither flag) than when using -fwrapv.

Reported-by: Barry K. Nathan <barryn@pobox.com>
Pushed-by: Frans Pop <elendil@planet.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-12 11:25:04 -07:00
Linus Torvalds
8b9f2caa02 Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (abituguru3) DMI probing for AB9, AB9 QuadQT and IX38 QuadGT
  hwmon: (sht15) Remove unnecessary semicolon
  hwmon: (max6650) Fix lock imbalance
2009-07-11 11:32:28 -07:00
Linus Torvalds
81e4e1ba7e Revert "fuse: Fix build error" as unnecessary
This reverts commit 097041e576.

Trond had a better fix, which is the parent of this one ("Fix compile
error due to congestion_wait() changes")

Requested-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-11 11:22:34 -07:00
Trond Myklebust
373c0a7ed3 Fix compile error due to congestion_wait() changes
Move the definition of BLK_RW_ASYNC/BLK_RW_SYNC into linux/backing-dev.h
so that it is available to all callers of set/clear_bdi_congested().

This replaces commit 097041e576 ("fuse:
Fix build error"), which will be reverted.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-11 11:22:26 -07:00
Alistair John Strachan
ec05a8d75d hwmon: (abituguru3) DMI probing for AB9, AB9 QuadQT and IX38 QuadGT
Switch the AB9, AB9 QuadQT and IX38 QuadGT over from port
probing to the preferred DMI probe method.

Signed-off-by: Alistair John Strachan <alistair@devzero.co.uk>
Tested-by: dan <dan@deeog.com>
Tested-by: Nygel Lyndley <nygel.lyndley@gmail.com>
Tested-by: Dmitriy Fedchenko <dmitriy-fedc@yandex.ru>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-07-11 13:42:38 +02:00
Joe Perches
24205e0850 hwmon: (sht15) Remove unnecessary semicolon
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-07-11 13:42:37 +02:00
Jiri Slaby
025dc740d0 hwmon: (max6650) Fix lock imbalance
Add omitted update_lock to one switch/case in set_div.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-07-11 13:42:37 +02:00
Linus Torvalds
f00caa7629 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - targa and targa-2ch fix
  ALSA: hda - fix beep tone calculation for IDT/STAC codecs
  ALSA: hda - Missing volume controls for Intel HDA (ALC269/EeePC)
  ALSA: hda - Disable AMD SB600 64bit address support only
  ALSA: hda - Check widget types while parsing capture source in patch_via.c
  ALSA: hda - Fix capture source selection in patch_via.c
  ALSA: hda - Add missing EAPD initialization for VIA codecs
  ALSA: hda - Clean up VT170x dig-in initialization code
  ALSA: hda - Fix error path in the sanity check in azx_pcm_open()
  ALSA: hda - move 8086:fb30 quirk (stac9205) to the proper section
  ASoC: Fix wm8753 register cache size and initialization
  ASoC: add locking to mpc5200-psc-ac97 driver
  ASoC: Fix mpc5200-psc-ac97 to ensure the data ready bit is cleared
  ASoC: Fix register cache initialisation for WM8753
2009-07-10 19:19:09 -07:00
Bartlomiej Zolnierkiewicz
8711c67bee isofs: fix Joliet regression
commit 5404ac8e44 ("isofs: cleanup mount
option processing") missed conversion of joliet option flag resulting
in non-working Joliet support.

CC: walt <w41ter@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 19:18:59 -07:00
Alan Cox
d4fc4a7bfc tty: Fix the PL2303 private methods for sysrq
PL2303 has private data shovelling methods that also have no fast path. Fix
them to work the same way as the default handler.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 19:17:22 -07:00
Alan Cox
24a15a62dc tty: Fix USB kref leak
The sysrq code acquired a kref leak. Fix it by passing the tty separately
from the caller (thus effectively using the callers kref which all the
callers hold anyway)

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 19:17:22 -07:00
Alan Cox
4cd1de0afa tty: Sort out the USB sysrq changes that wrecked performance
We can't go around calling all sorts of magic per character functions at
full rate 3G data speed.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 19:17:22 -07:00
Linus Torvalds
d6be791cbd Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6
* 'linux-next' of git://git.infradead.org/ubi-2.6:
  UBI: fix compilation warnings
  UBI: fix NOR flash recovery
  UBI: nicify image sequence number handling
  UBI: add image sequence number to EC header
  UBI: remove bogus debugging checks
  UBI: add empty eraseblocks verification
2009-07-10 19:15:34 -07:00
Linus Torvalds
44c695b13b Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6
* 'linux-next' of git://git.infradead.org/ubifs-2.6:
  UBIFS: fix corruption dump
  UBIFS: clean up free space checking
  UBIFS: small amendments in the LEB scanning code
  UBIFS: dump a little more in case of corruptions
  MAINTAINERS: update ahunter's e-mail address
  UBIFS: allow more than one volume to be mounted
  UBIFS: fix assertion warning
  UBIFS: minor spelling and grammar fixes
  UBIFS: fix 64-bit divisions in debug print
  UBIFS: few spelling fixes
  UBIFS: set write-buffer timout to 3-5 seconds
  UBIFS: slightly optimize write-buffer timer usage
  UBIFS: improve debugging messaged
  UBIFS: fix integer overflow warning
2009-07-10 19:14:48 -07:00
Linus Torvalds
eee33abe59 Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] define KTIME_SCALAR for 32-bit s390
  [S390] add generic atomic64 support for 31 bit
  [S390] improve suspend/resume error messages
  [S390] set SCHED_OMIT_FRAME_POINTER for s390
  [S390] add __ucmpdi2() helper function
  [S390] perf_counter build fix
  [S390] shutdown actions: save/return rc from init function
  [S390] dasd: correct debugfeature sense dump
  [S390] udelay: disable lockdep to avoid false positives
  [S390] monreader: fix dev_set_drvdata conversion
  [S390] sclp: fix compile error for !SCLP_CONSOLE
2009-07-10 19:12:51 -07:00
Linus Torvalds
04eef90c2e Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
* 'for-linus' of git://git.open-osd.org/linux-open-osd:
  osdblk: Adjust queue limits to lower device's limits
  osdblk: a Linux block device for OSD objects
  MAINTAINERS: Add osd maintained files (F:)
  exofs: Avoid using file_fsync()
  exofs: Remove IBM copyrights
  exofs: Fix bio leak in error handling path (sync read)
2009-07-10 19:12:24 -07:00
Linus Torvalds
bb8ad2815a Merge branch 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel
* 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: (22 commits)
  drm/i915: Fix for LVDS VBT change on IGDNG
  drm/i915: Zap the GTT mapping when transitioning from untiled to tiled.
  drm/i915: Refactor calls to unmap_mapping_range
  drm/i915: Avoid saving/restore the modesetting registers twice in KMS mode
  drm: Disable the unused connectors explicitly when resuming with KMS.
  drm/i915: Restore the KMS modeset for every activated CRTC
  drm/i915: Fix harmless warning from patch merged after i2c rework.
  drm/i915: Disable GEM when a broken video BIOS takes up the whole aperture.
  drm/i915: Check the LID device to decide whether the LVDS should be initialized
  drm/i915: Move lock to more reasonable location
  drm/i915: Add gtt_offset to gem object list debugfs output
  drm/i915: Remove gtt_bound from drm_i915_gem_object
  drm/i915: Disable VGA output when doing DRM_MODE_DPMS_OFF.
  drm/i915: crt fetch EDID by DVI-I converter on G4x platform
  drm/i915: Don't update display FIFO watermark on IGDNG
  drm/i915: Adjust DisplayPort clocks to use 96MHz reference
  drm/i915: Make driver less chatty
  drm/i915: fix up a raw 64bit divide
  drm/i915: enable sdvo lvds scaling function.
  drm/i915: Set SSC frequency for 8xx chips correctly
  ...
2009-07-10 19:10:59 -07:00
Amerigo Wang
c368b4921b Doc: move Documentation/exception.txt into x86 subdir
exception.txt only explains the code on x86, so it's better to
move it into Documentation/x86 directory.

And also rename it to exception-tables.txt which looks much
more reasonable.

This patch is on top of the previous one.

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 19:10:32 -07:00
Amerigo Wang
3697cd9aa8 Doc: update Documentation/exception.txt
Update Documentation/exception.txt.
Remove trailing whitespaces in it.

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 19:10:32 -07:00
Larry Finger
097041e576 fuse: Fix build error
When building v2.6.31-rc2-344-g69ca06c, the following build errors are
found due to missing includes:

 CC [M]  fs/fuse/dev.o
fs/fuse/dev.c: In function ‘request_end’:
fs/fuse/dev.c:289: error: ‘BLK_RW_SYNC’ undeclared (first use in this function)
...
fs/nfs/write.c: In function ‘nfs_set_page_writeback’:
fs/nfs/write.c:207: error: ‘BLK_RW_ASYNC’ undeclared (first use in this function)

Signed-off-by: Larry Finger@lwfinger.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 19:09:46 -07:00
Linus Torvalds
69ca06c945 Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  cfq-iosched: reset oom_cfqq in cfq_set_request()
  block: fix sg SG_DXFER_TO_FROM_DEV regression
  block: call blk_scsi_ioctl_init()
  Fix congestion_wait() sync/async vs read/write confusion
2009-07-10 14:29:58 -07:00
Linus Torvalds
9f2d8be426 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  nilfs2: fix disorder in cp count on error during deleting checkpoints
  nilfs2: fix lockdep warning between regular file and inode file
  nilfs2: fix incorrect KERN_CRIT messages in case of write failures
  nilfs2: fix hang problem of log writer which occurs after write failures
  nilfs2: remove unlikely directive causing mis-conversion of error code
2009-07-10 14:27:21 -07:00
Linus Torvalds
ac3f482236 Merge branch 'core-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  dma-debug: Fix the overlap() function to be correct and readable
  oprofile: reset bt_lost_no_mapping with other stats
  x86/oprofile: rename kernel parameter for architectural perfmon to arch_perfmon
  signals: declare sys_rt_tgsigqueueinfo in syscalls.h
  rcu: Mark Hierarchical RCU no longer experimental
  dma-debug: Put all hash-chain locks into the same lock class
  dma-debug: fix off-by-one error in overlap function
2009-07-10 14:25:59 -07:00
Linus Torvalds
85be928c41 Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits)
  perf report: Add "Fractal" mode output - support callchains with relative overhead rate
  perf_counter tools: callchains: Manage the cumul hits on the fly
  perf report: Change default callchain parameters
  perf report: Use a modifiable string for default callchain options
  perf report: Warn on callchain output request from non-callchain file
  x86: atomic64: Inline atomic64_read() again
  x86: atomic64: Clean up atomic64_sub_and_test() and atomic64_add_negative()
  x86: atomic64: Improve atomic64_xchg()
  x86: atomic64: Export APIs to modules
  x86: atomic64: Improve atomic64_read()
  x86: atomic64: Code atomic(64)_read and atomic(64)_set in C not CPP
  x86: atomic64: Fix unclean type use in atomic64_xchg()
  x86: atomic64: Make atomic_read() type-safe
  x86: atomic64: Reduce size of functions
  x86: atomic64: Improve atomic64_add_return()
  x86: atomic64: Improve cmpxchg8b()
  x86: atomic64: Improve atomic64_read()
  x86: atomic64: Move the 32-bit atomic64_t implementation to a .c file
  x86: atomic64: The atomic64_t data type should be 8 bytes aligned on 32-bit too
  perf report: Annotate variable initialization
  ...
2009-07-10 14:25:03 -07:00
Peter Zijlstra
d86ee4809d sched: optimize cond_resched()
Optimize cond_resched() by removing one conditional.

Currently cond_resched() checks system_state ==
SYSTEM_RUNNING in order to avoid scheduling before the
scheduler is running.

We can however, as per suggestion of Matt, use
PREEMPT_ACTIVE to accomplish that very same.

Suggested-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 14:24:05 -07:00
Peter Zijlstra
c99e6efe1b sched: INIT_PREEMPT_COUNT
Pull the initial preempt_count value into a single
definition site.

Maintainers for: alpha, ia64 and m68k, please have a look,
your arch code is funny.

The header magic is a bit odd, but similar to the KERNEL_DS
one, CPP waits with expanding these macros until the
INIT_THREAD_INFO macro itself is expanded, which is in
arch/*/kernel/init_task.c where we've already included
sched.h so we're good.

Cc: tony.luck@intel.com
Cc: rth@twiddle.net
Cc: geert@linux-m68k.org
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 14:24:05 -07:00
Zhenyu Wang
5019914ca3 drm/i915: Fix for LVDS VBT change on IGDNG
IGDNG mobile chip's LVDS data block removes panel fitting
register definition. So this fixes offset for LVDS timing
block parsing. Thanks for Michael Fu to catch this.

Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-07-10 14:11:06 -07:00
Eric Anholt
d05ca30199 drm/i915: Zap the GTT mapping when transitioning from untiled to tiled.
As of 52dc7d32b8, we could leave an old
linear GTT mapping in place, so that apps trying to GTT-mapped write in
tiled data wouldn't get the fence added, and garbage would get displayed.

Signed-off-by: Eric Anholt <eric@anholt.net>
2009-07-10 14:10:58 -07:00
Chris Wilson
901782b21e drm/i915: Refactor calls to unmap_mapping_range
As we call unmap_mapping_range() twice in identical fashion, refactor
and attempt to explain why we need to call unmap_mapping_range().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-07-10 14:10:53 -07:00
Ingo Molnar
f39d1b9792 dma-debug: Fix the overlap() function to be correct and readable
Linus noticed how unclean and buggy the overlap() function is:

 - It uses convoluted (and bug-causing) positive checks for
   range overlap - instead of using a more natural negative
   check.

 - Even the positive checks are buggy: a positive intersection
   check has four natural cases while we checked only for three,
   missing the (addr < start && addr2 == end) case for example.

 - The variables are mis-named, making it non-obvious how the
   check was done.

 - It needlessly uses u64 instead of unsigned long. Since these
   are kernel memory pointers and we explicitly exclude highmem
   ranges anyway we cannot ever overflow 32 bits, even if we
   could. (and on 64-bit it doesnt matter anyway)

All in one, this function needs a total revamp. I used Linus's
suggestions minus the paranoid checks (we cannot overflow really
because if we get totally bad DMA ranges passed far more things
break in the systems than just DMA debugging). I also fixed a
few other small details i noticed.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-10 22:18:45 +02:00
Zhao Yakui
fccdaba431 drm/i915: Avoid saving/restore the modesetting registers twice in KMS mode
In KMS mode we now use the normal mode-setting paths to set the modes
back to the current configuration, so we don't need to also run the more
limited non-KMS implementation of modesetting for resume.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-07-10 12:40:36 -07:00
Zhao Yakui
af4fcb574e drm: Disable the unused connectors explicitly when resuming with KMS.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by:  Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by:  Dave Airlie <airlied@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-07-10 12:39:51 -07:00
Zhao Yakui
354ff96772 drm/i915: Restore the KMS modeset for every activated CRTC
Restore the modeset for every activated CRTC in course of resume.
This is realized by calling the function of drm_helper_resume_force_mode.
Note: it is meaningful only for the KMS mode.

https://bugs.freedesktop.org/show_bug.cgi?id=21719
https://bugs.freedesktop.org/show_bug.cgi?id=21708
https://bugs.freedesktop.org/show_bug.cgi?id=22285
https://bugs.freedesktop.org/show_bug.cgi?id=22263

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-07-10 12:36:11 -07:00
Eric Anholt
883e860daf drm/i915: Fix harmless warning from patch merged after i2c rework.
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-07-10 12:30:18 -07:00
Eric Anholt
2a34f5e6b6 drm/i915: Disable GEM when a broken video BIOS takes up the whole aperture.
This is seen on some G41 systems, where the BIOS will consume all but
a few KB of the aperture.  This should be bad for all operating systems, as
it means that the OS can't dynamically manage memory between graphics and
the rest of the system, and OSes that did static memory management
statically add memory in addition to the BIOS allocation anyway.  So, instead
of working around it, just fail out verbosely.

fd.o bug #21574

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2009-07-10 12:29:33 -07:00
Linus Torvalds
2a6f86bc5e Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  tracing: Fix trace_print_seq()
  kprobes: No need to unlock kprobe_insn_mutex
  tracing/fastboot: Document the need of initcall_debug
  trace_export: Repair missed fields
  tracing: Fix stack tracer sysctl handling
2009-07-10 11:41:41 -07:00
Vivek Goyal
32f2e807a3 cfq-iosched: reset oom_cfqq in cfq_set_request()
In case memory is scarce, we now default to oom_cfqq. Once memory is
available again, we should allocate a new cfqq and stop using oom_cfqq for
a particular io context.

Once a new request comes in, check if we are using oom_cfqq, and if yes,
try to allocate a new cfqq.

Tested the patch by forcing the use of oom_cfqq and upon next request thread
realized that it was using oom_cfqq and it allocated a new cfqq.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-07-10 20:31:54 +02:00
FUJITA Tomonori
ecb554a846 block: fix sg SG_DXFER_TO_FROM_DEV regression
I overlooked SG_DXFER_TO_FROM_DEV support when I converted sg to use
the block layer mapping API (2.6.28).

Douglas Gilbert explained SG_DXFER_TO_FROM_DEV:

http://www.spinics.net/lists/linux-scsi/msg37135.html

=
The semantics of SG_DXFER_TO_FROM_DEV were:
   - copy user space buffer to kernel (LLD) buffer
   - do SCSI command which is assumed to be of the DATA_IN
     (data from device) variety. This would overwrite
     some or all of the kernel buffer
   - copy kernel (LLD) buffer back to the user space.

The idea was to detect short reads by filling the original
user space buffer with some marker bytes ("0xec" it would
seem in this report). The "resid" value is a better way
of detecting short reads but that was only added this century
and requires co-operation from the LLD.
=

This patch changes the block layer mapping API to support this
semantics. This simply adds another field to struct rq_map_data and
enables __bio_copy_iov() to copy data from user space even with READ
requests.

It's better to add the flags field and kills null_mapped and the new
from_user fields in struct rq_map_data but that approach makes it
difficult to send this patch to stable trees because st and osst
drivers use struct rq_map_data (they were converted to use the block
layer in 2.6.29 and 2.6.30). Well, I should clean up the block layer
mapping API.

zhou sf reported this regiression and tested this patch:

http://www.spinics.net/lists/linux-scsi/msg37128.html
http://www.spinics.net/lists/linux-scsi/msg37168.html

Reported-by: zhou sf <sxzzsf@gmail.com>
Tested-by: zhou sf <sxzzsf@gmail.com>
Cc: stable@kernel.org
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-07-10 20:31:53 +02:00
FUJITA Tomonori
76da03467a block: call blk_scsi_ioctl_init()
Currently, blk_scsi_ioctl_init() is not called since it lacks
an initcall marking. This causes the command table to be
unitialized, hence somce commands are block when they should
not have been.

This fixes a regression introduced by commit
018e044689

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-07-10 20:31:53 +02:00
Jens Axboe
8aa7e847d8 Fix congestion_wait() sync/async vs read/write confusion
Commit 1faa16d228 accidentally broke
the bdi congestion wait queue logic, causing us to wait on congestion
for WRITE (== 1) when we really wanted BLK_RW_ASYNC (== 0) instead.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-07-10 20:31:53 +02:00
Maynard Johnson
2b8777ca0c oprofile: reset bt_lost_no_mapping with other stats
The bt_lost_no_mapping is not getting reset at the start of a
profiling run, thus the oprofiled.log shows erroneous values for this
statistic. The attached patch fixes this problem.

Signed-off-by: Maynard Johnson <maynardj@us.ibm.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-10 12:35:36 +02:00
Takashi Iwai
3ae3079666 Merge branch 'fix/hda' into for-linus
* fix/hda:
  ALSA: hda - targa and targa-2ch fix
  ALSA: hda - fix beep tone calculation for IDT/STAC codecs
  ALSA: hda - Missing volume controls for Intel HDA (ALC269/EeePC)
  ALSA: hda - Disable AMD SB600 64bit address support only
  ALSA: hda - Check widget types while parsing capture source in patch_via.c
  ALSA: hda - Fix capture source selection in patch_via.c
  ALSA: hda - Add missing EAPD initialization for VIA codecs
  ALSA: hda - Clean up VT170x dig-in initialization code
  ALSA: hda - Fix error path in the sanity check in azx_pcm_open()
  ALSA: hda - move 8086:fb30 quirk (stac9205) to the proper section
2009-07-10 11:17:12 +02:00
Takashi Iwai
f371f12f3e Merge branch 'fix/asoc' into for-linus
* fix/asoc:
  ASoC: Fix wm8753 register cache size and initialization
  ASoC: add locking to mpc5200-psc-ac97 driver
  ASoC: Fix mpc5200-psc-ac97 to ensure the data ready bit is cleared
  ASoC: Fix register cache initialisation for WM8753
2009-07-10 11:17:11 +02:00
Linus Torvalds
b690a3770e Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] w83627hf_wdt.c: add support for the W83627EHF support
  [WATCHDOG] SA1100 watchdog maximum timeout
  [WATCHDOG] w83697ug, fix lock imbalance
  [WATCHDOG] drivers/watchdog/bcm47xx_wdt.c: Remove unnecessary semicolons
2009-07-09 20:45:01 -07:00
Krzysztof Helt
016d3569bf mx3fb: fix regression with uninitalized fb_info->mm_lock mutex
Remove call to the mx3fb_set_par() and the mx3fb_blank() before the
register_framebuffer().

This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059 " fbdev: add mutex for fb_mmap
locking"

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-09 20:44:44 -07:00
Krzysztof Helt
afecb0d02a sm501fb: fix regression with uninitalized fb_info->mm_lock mutex
Remove call to the fb_set_par() before the register_framebuffer().

This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059 " fbdev: add mutex for fb_mmap
locking"

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-09 20:44:44 -07:00
Linus Torvalds
c2cc49a2f8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: when ATTR_READONLY is set, only clear write bits on non-directories
  cifs: remove cifsInodeInfo->inUse counter
  cifs: convert cifs_get_inode_info and non-posix readdir to use cifs_iget
  [CIFS] update cifs version number
  cifs: add and use CIFSSMBUnixSetFileInfo for setattr calls
  cifs: make a separate function for filling out FILE_UNIX_BASIC_INFO
  cifs: rename CIFSSMBUnixSetInfo to CIFSSMBUnixSetPathInfo
  cifs: add pid of initiating process to spnego upcall info
  cifs: fix regression with O_EXCL creates and optimize away lookup
  cifs: add new cifs_iget function and convert unix codepath to use it
2009-07-09 20:40:58 -07:00