9 years agoocfs2: Remove xattrs via ocfs2_xa_loc
Joel Becker [Fri, 14 Aug 2009 23:58:38 +0000]
ocfs2: Remove xattrs via ocfs2_xa_loc

Add ocfs2_xa_remove_entry(), which will remove an xattr entry from its
storage via the ocfs2_xa_loc descriptor.

Signed-off-by: Joel Becker <joel.becker@oracle.com>

9 years agoocfs2: Introduce ocfs2_xa_loc
Joel Becker [Fri, 14 Aug 2009 23:07:44 +0000]
ocfs2: Introduce ocfs2_xa_loc

The ocfs2 extended attribute (xattr) code is very flexible.  It can
store xattrs in the inode itself, in an external block, or in a tree of
data structures.  This allows the number of xattrs to be bounded by the
filesystem size.

However, the code that manages each possible storage location is
different.  Maintaining the ocfs2 xattr code requires changing each hunk
separately.

This patch is the start of a series introducing the ocfs2_xa_loc
structure.  This structure wraps the on-disk details of an xattr
entry.  The goal is that the generic xattr routines can use
ocfs2_xa_loc without knowing the underlying storage location.

This first pass merely implements the basic structure, initializing it,
and wiping the name+value pair of the entry.

Signed-off-by: Joel Becker <joel.becker@oracle.com>

9 years agoocfs2: Add current->comm in trace output
Sunil Mushran [Fri, 12 Feb 2010 22:09:06 +0000]
ocfs2: Add current->comm in trace output

Add current->comm to the standard mlog() output to help with debugging.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

9 years agoocfs2: Clean up the checks for CoW and direct I/O.
Wengang Wang [Tue, 9 Feb 2010 06:57:45 +0000]
ocfs2: Clean up the checks for CoW and direct I/O.

When ocfs2 has to do CoW for refcounted extents, we disable direct I/O
and go through the buffered I/O path.  This makes the combined check
easier to read.

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

9 years agoocfs2: add extent block stealing for ocfs2 v5
Tiger Yang [Mon, 25 Jan 2010 06:11:06 +0000]
ocfs2: add extent block stealing for ocfs2 v5

This patch add extent block (metadata) stealing mechanism for
extent allocation. This mechanism is same as the inode stealing.
if no room in slot specific extent_alloc, we will try to
allocate extent block from the next slot.

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Acked-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

9 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
Linus Torvalds [Tue, 9 Feb 2010 00:05:50 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/jlbec/ocfs2

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
  ocfs2/cluster: Make o2net connect messages KERN_NOTICE
  ocfs2/dlm: Fix printing of lockname
  ocfs2: Fix contiguousness check in ocfs2_try_to_merge_extent_map()
  ocfs2/dlm: Remove BUG_ON in dlm recovery when freeing locks of a dead node
  ocfs2: Plugs race between the dc thread and an unlock ast message
  ocfs2: Remove overzealous BUG_ON during blocked lock processing
  ocfs2: Do not downconvert if the lock level is already compatible
  ocfs2: Prevent a livelock in dlmglue
  ocfs2: Fix setting of OCFS2_LOCK_BLOCKED during bast
  ocfs2: Use compat_ptr in reflink_arguments.
  ocfs2/dlm: Handle EAGAIN for compatibility - v2
  ocfs2: Add parenthesis to wrap the check for O_DIRECT.
  ocfs2: Only bug out when page size is larger than cluster size.
  ocfs2: Fix memory overflow in cow_by_page.
  ocfs2/dlm: Print more messages during lock migration
  ocfs2/dlm: Ignore LVBs of locks in the Blocked list
  ocfs2/trivial: Remove trailing whitespaces
  ocfs2: fix a misleading variable name
  ocfs2: Sync max_inline_data_with_xattr from tools.
  ocfs2: Fix refcnt leak on ocfs2_fast_follow_link() error path

9 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Mon, 8 Feb 2010 21:33:31 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Fix ondemand to not request targets outside policy limits
  [CPUFREQ] Fix use after free of struct powernow_k8_data
  [CPUFREQ] fix default value for ondemand governor

9 years agoocfs2/cluster: Make o2net connect messages KERN_NOTICE
Sunil Mushran [Fri, 5 Feb 2010 23:41:23 +0000]
ocfs2/cluster: Make o2net connect messages KERN_NOTICE

Connect and disconnect messages are more than informational as they are required
during root cause analysis for failures. This patch changes them from KERN_INFO
to KERN_NOTICE.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Acked-by: Mark Faseh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

9 years agoocfs2/dlm: Fix printing of lockname
Sunil Mushran [Sat, 6 Feb 2010 01:55:56 +0000]
ocfs2/dlm: Fix printing of lockname

The debug call printing the name of the lock resource was chopping
off the last character. This patch fixes the problem.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Acked-by: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

9 years agoMerge branch 'v4l_for_linus' of git://linuxtv.org/fixes
Linus Torvalds [Mon, 8 Feb 2010 19:07:10 +0000]
Merge branch 'v4l_for_linus' of git://linuxtv.org/fixes

* 'v4l_for_linus' of git://linuxtv.org/fixes:
  V4L/DVB: dvb-core: fix initialization of feeds list in demux filter
  V4L/DVB: dvb_demux: Don't use vmalloc at dvb_dmx_swfilter_packet
  V4L/DVB: Fix the risk of an oops at dvb_dmx_release

9 years agoMerge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze
Linus Torvalds [Mon, 8 Feb 2010 18:10:36 +0000]
Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze

* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Invalidate dcache before enabling it

9 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Mon, 8 Feb 2010 18:10:18 +0000]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/pseries: Fix kexec regression caused by CPPR tracking

9 years agoMerge branch 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...
Linus Torvalds [Mon, 8 Feb 2010 18:09:55 +0000]
Merge branch 'sh/for-2.6.33' of git://git./linux/kernel/git/lethal/sh-2.6

* 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Remove superfluous setup_frame_reg call
  sh: Don't continue unwinding across interrupts
  sh: Setup frame pointer in handle_exception path
  sh: Correct the offset of the return address in ret_from_exception
  usb: r8a66597-hcd: Fix up spinlock recursion in root hub polling.
  usb: r8a66597-hcd: Flush the D-cache for the pipe-in transfer buffers.

9 years agoV4L/DVB: dvb-core: fix initialization of feeds list in demux filter
Francesco Lavra [Sun, 7 Feb 2010 12:49:58 +0000]
V4L/DVB: dvb-core: fix initialization of feeds list in demux filter

A DVB demultiplexer device can be used to set up either a PES filter or
a section filter. In the former case, the ts field of the feed union of
struct dmxdev_filter is used, in the latter case the sec field of the
same union is used.
The ts field is a struct list_head, and is currently initialized in the
open() method of the demux device. When for a given demuxer a section
filter is set up, the sec field is played with, thus if a PES filter
needs to be set up after that the ts field will be corrupted, causing a
kernel oops.
This fix moves the list head initialization to
dvb_dmxdev_pes_filter_set(), so that the ts field is properly
initialized every time a PES filter is set up.

Signed-off-by: Francesco Lavra <francescolavra@interfree.it>
Cc: stable <stable@kernel.org>
Reviewed-by: Andy Walls <awalls@radix.net>
Tested-by: hermann pitton <hermann-pitton@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

9 years agoV4L/DVB: dvb_demux: Don't use vmalloc at dvb_dmx_swfilter_packet
Mauro Carvalho Chehab [Mon, 1 Feb 2010 14:50:42 +0000]
V4L/DVB: dvb_demux: Don't use vmalloc at dvb_dmx_swfilter_packet

As dvb_dmx_swfilter_packet() is protected by a spinlock, it shouldn't sleep.
However, vmalloc() may call sleep. So, move the initialization of
dvb_demux::cnt_storage field to a better place.

Reviewed-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

9 years agoV4L/DVB: Fix the risk of an oops at dvb_dmx_release
Mauro Carvalho Chehab [Mon, 1 Feb 2010 13:35:22 +0000]
V4L/DVB: Fix the risk of an oops at dvb_dmx_release

dvb_dmx_init tries to allocate virtual memory for 2 pointers: filter and feed.

If the second vmalloc fails, filter is freed, but the pointer keeps pointing
to the old place. Later, when dvb_dmx_release() is called, it will try to
free an already freed memory, causing an OOPS.

Reviewed-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

9 years agomicroblaze: Invalidate dcache before enabling it
Michal Simek [Mon, 1 Feb 2010 11:15:58 +0000]
microblaze: Invalidate dcache before enabling it

We found that on write-trough kernel is necessary to do that invalidation.
One WB is possible to use invalidation too.

Signed-off-by: Michal Simek <monstr@monstr.eu>

9 years agopowerpc/pseries: Fix kexec regression caused by CPPR tracking
Mark Nelson [Sun, 7 Feb 2010 16:45:12 +0000]
powerpc/pseries: Fix kexec regression caused by CPPR tracking

The code to track the CPPR values added by commit
49bd3647134ea47420067aea8d1401e722bf2aac ("powerpc/pseries: Track previous
CPPR values to correctly EOI interrupts") broke kexec on pseries because
the kexec code in xics.c calls xics_set_cpu_priority() before the IPI has
been EOI'ed. This wasn't a problem previously but it now triggers a BUG_ON
in xics_set_cpu_priority() because os_cppr->index isn't 0.

Fix this problem by setting the index on the CPPR stack to 0 before calling
xics_set_cpu_priority() in xics_teardown_cpu().

Also make it clear that we only want to set the priority when there's just
one CPPR value in the stack, and enforce it by updating the value of
os_cppr->stack[0] rather than os_cppr->stack[os_cppr->index].

While we're at it change the BUG_ON to a WARN_ON.

Reported-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

9 years agosh: Remove superfluous setup_frame_reg call
Matt Fleming [Sat, 30 Jan 2010 17:37:25 +0000]
sh: Remove superfluous setup_frame_reg call

There's no need to setup the frame pointer again in
call_handle_tlbmiss. The frame pointer will already have been setup in
handle_interrupt.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

9 years agosh: Don't continue unwinding across interrupts
Matt Fleming [Sat, 30 Jan 2010 17:36:20 +0000]
sh: Don't continue unwinding across interrupts

Unfortunately, due to poor DWARF info in current toolchains, unwinding
through interrutps cannot be done reliably. The problem is that the
DWARF info for function epilogues is wrong.

Take this standard epilogue sequence,

80003cc4:       e3 6f           mov     r14,r15
80003cc6:       26 4f           lds.l   @r15+,pr
80003cc8:       f6 6e           mov.l   @r15+,r14
<---- interrupt here
80003cca:       f6 6b           mov.l   @r15+,r11
80003ccc:       f6 6a           mov.l   @r15+,r10
80003cce:       f6 69           mov.l   @r15+,r9
80003cd0:       0b 00           rts

If we take an interrupt at the highlighted point, the DWARF info will
bogusly claim that the return address can be found at some offset from
the frame pointer, even though the frame pointer was just restored. The
worst part is if the unwinder finds a text address at the bogus stack
address - unwinding will continue, for a bit, until it finally comes
across an unexpected address on the stack and blows up.

The only solution is to stop unwinding once we've calculated the
function that was executing when the interrupt occurred. This PC can be
easily calculated from pt_regs->pc.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

9 years agosh: Setup frame pointer in handle_exception path
Matt Fleming [Wed, 27 Jan 2010 20:44:59 +0000]
sh: Setup frame pointer in handle_exception path

In order to allow the DWARF unwinder to unwind through exceptions we
need to setup the frame pointer register (r14).

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

9 years agosh: Correct the offset of the return address in ret_from_exception
Matt Fleming [Wed, 27 Jan 2010 20:05:20 +0000]
sh: Correct the offset of the return address in ret_from_exception

The address that ret_from_exception and ret_from_irq will return to is
found in the stack slot for SPC, not PR. This error was causing the
DWARF unwinder to pick up the wrong return address on the stack and then
unwind using the unwind tables for the wrong function.

While I'm here I might as well add CFI annotations for the other
registers since they could be useful when unwinding.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Sun, 7 Feb 2010 19:18:28 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  Take ima_file_free() to proper place.
  ima: rename PATH_CHECK to FILE_CHECK
  ima: rename ima_path_check to ima_file_check
  ima: initialize ima before inodes can be allocated
  fix ima breakage
  Take ima_path_check() in nfsd past dentry_open() in nfsd_open()
  freeze_bdev: don't deactivate successfully frozen MS_RDONLY sb
  befs: fix leak

9 years agoFix race in tty_fasync() properly
Linus Torvalds [Sun, 7 Feb 2010 18:11:23 +0000]
Fix race in tty_fasync() properly

This reverts commit 703625118069 ("tty: fix race in tty_fasync") and
commit b04da8bfdfbb ("fnctl: f_modown should call write_lock_irqsave/
restore") that tried to fix up some of the fallout but was incomplete.

It turns out that we really cannot hold 'tty->ctrl_lock' over calling
__f_setown, because not only did that cause problems with interrupt
disables (which the second commit fixed), it also causes a potential
ABBA deadlock due to lock ordering.

Thanks to Tetsuo Handa for following up on the issue, and running
lockdep to show the problem.  It goes roughly like this:

 - f_getown gets filp->f_owner.lock for reading without interrupts
   disabled, so an interrupt that happens while that lock is held can
   cause a lockdep chain from f_owner.lock -> sighand->siglock.

 - at the same time, the tty->ctrl_lock -> f_owner.lock chain that
   commit 703625118069 introduced, together with the pre-existing
   sighand->siglock -> tty->ctrl_lock chain means that we have a lock
   dependency the other way too.

So instead of extending tty->ctrl_lock over the whole __f_setown() call,
we now just take a reference to the 'pid' structure while holding the
lock, and then release it after having done the __f_setown.  That still
guarantees that 'struct pid' won't go away from under us, which is all
we really ever needed.

Reported-and-tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Américo Wang <xiyou.wangcong@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

9 years agoTake ima_file_free() to proper place.
Al Viro [Sun, 7 Feb 2010 08:07:29 +0000]
Take ima_file_free() to proper place.

Hooks: Just Say No.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agoima: rename PATH_CHECK to FILE_CHECK
Mimi Zohar [Tue, 26 Jan 2010 22:02:41 +0000]
ima: rename PATH_CHECK to FILE_CHECK

With the movement of the ima hooks functions were renamed from *path* to
*file* since they always deal with struct file.  This patch renames some of
the ima internal flags to make them consistent with the rest of the code.

Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agoima: rename ima_path_check to ima_file_check
Mimi Zohar [Tue, 26 Jan 2010 22:02:40 +0000]
ima: rename ima_path_check to ima_file_check

ima_path_check actually deals with files!  call it ima_file_check instead.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agoima: initialize ima before inodes can be allocated
Eric Paris [Wed, 9 Dec 2009 20:29:01 +0000]
ima: initialize ima before inodes can be allocated

ima wants to create an inode information struct (iint) when inodes are
allocated.  This means that at least the part of ima which does this
allocation (the allocation is filled with information later) should
before any inodes are created.  To accomplish this we split the ima
initialization routine placing the kmem cache allocator inside a
security_initcall() function.  Since this makes use of radix trees we also
need to make sure that is initialized before security_initcall().

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agofix ima breakage
Mimi Zohar [Wed, 20 Jan 2010 20:35:41 +0000]
fix ima breakage

The "Untangling ima mess, part 2 with counters" patch messed
up the counters.  Based on conversations with Al Viro, this patch
streamlines ima_path_check() by removing the counter maintaince.
The counters are now updated independently, from measuring the file,
in __dentry_open() and alloc_file() by calling ima_counts_get().
ima_path_check() is called from nfsd and do_filp_open().
It also did not measure all files that should have been measured.
Reason: ima_path_check() got bogus value passed as mask.
[AV: mea culpa]
[AV: add missing nfsd bits]

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agoTake ima_path_check() in nfsd past dentry_open() in nfsd_open()
Al Viro [Tue, 26 Jan 2010 10:43:08 +0000]
Take ima_path_check() in nfsd past dentry_open() in nfsd_open()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agofreeze_bdev: don't deactivate successfully frozen MS_RDONLY sb
Jun'ichi Nomura [Fri, 29 Jan 2010 00:56:22 +0000]
freeze_bdev: don't deactivate successfully frozen MS_RDONLY sb

Thanks Thomas and Christoph for testing and review.
I removed 'smp_wmb()' before up_write from the previous patch,
since up_write() should have necessary ordering constraints.
(I.e. the change of s_frozen is visible to others after up_write)
I'm quite sure the change is harmless but if you are uncomfortable
with Tested-by/Reviewed-by on the modified patch, please remove them.

If MS_RDONLY, freeze_bdev should just up_write(s_umount) instead of
deactivate_locked_super().
Also, keep sb->s_frozen consistent so that remount can check the frozen state.

Otherwise a crash reported here can happen:
http://lkml.org/lkml/2010/1/16/37
http://lkml.org/lkml/2010/1/28/53

This patch should be applied for 2.6.32 stable series, too.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Thomas Backlund <tmb@mandriva.org>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: stable@kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agobefs: fix leak
Al Viro [Fri, 29 Jan 2010 03:11:38 +0000]
befs: fix leak

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agoLinux 2.6.33-rc7
Linus Torvalds [Sat, 6 Feb 2010 22:17:12 +0000]
Linux 2.6.33-rc7

9 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
Linus Torvalds [Sat, 6 Feb 2010 21:02:31 +0000]
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: (w83781d) Request I/O ports individually for probing
  hwmon: (lm78) Request I/O ports individually for probing
  hwmon: (adt7462) Wrong ADT7462_VOLT_COUNT

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt...
Linus Torvalds [Sat, 6 Feb 2010 21:01:39 +0000]
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: Fix leak of relocs along do_execbuffer error path
  drm/i915: slow acpi_lid_open() causes flickering - V2
  drm/i915: Disable SR when more than one pipe is enabled
  drm/i915: page flip support for Ironlake
  drm/i915: Fix the incorrect DMI string for Samsung SX20S laptop
  drm/i915: Add support for SDVO composite TV
  drm/i915: don't trigger ironlake vblank interrupt at irq install
  drm/i915: handle non-flip pending case when unpinning the scanout buffer
  drm/i915: Fix the device info of Pineview
  drm/i915: enable vblank interrupt on ironlake
  drm/i915: Prevent use of uninitialized pointers along error path.
  drm/i915: disable hotplug detect before Ironlake CRT detect

9 years agoFix potential crash with sys_move_pages
Linus Torvalds [Sat, 6 Feb 2010 00:16:50 +0000]
Fix potential crash with sys_move_pages

We incorrectly depended on the 'node_state/node_isset()' functions
testing the node range, rather than checking it explicitly.  That's not
reliable, even if it might often happen to work.  So do the proper
explicit test.

Reported-by: Marcus Meissner <meissner@suse.de>
Acked-and-tested-by: Brice Goglin <Brice.Goglin@inria.fr>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

9 years agoocfs2: Fix contiguousness check in ocfs2_try_to_merge_extent_map()
Roel Kluin [Fri, 5 Feb 2010 09:26:27 +0000]
ocfs2: Fix contiguousness check in ocfs2_try_to_merge_extent_map()

The wrong member was compared in the continguousness check.

Acked-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 5 Feb 2010 19:11:34 +0000]
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: pandora: Add APLL supply to fix audio output
  ALSA: ice1724 - aureon - fix wm8770 volume offset
  ALSA: cosmetic: make hda intel interrupt name consistent with others
  ALSA: hda - Delay switching to polling mode if an interrupt was missing
  ALSA: ctxfi - fix PTP address initialization

9 years agohwmon: (w83781d) Request I/O ports individually for probing
Jean Delvare [Fri, 5 Feb 2010 18:58:36 +0000]
hwmon: (w83781d) Request I/O ports individually for probing

Different motherboards have different PNP declarations for
W83781D/W83782D chips. Some declare the whole range of I/O ports (8
ports), some declare only the useful ports (2 ports at offset 5) and
some declare fancy ranges, for example 4 ports at offset 4. To
properly handle all cases, request all ports individually for probing.
After we have determined that we really have a W83781D or W83782D
chip, the useful port range will be requested again, as a single
block.

I did not see a board which needs this yet, but I know of one for lm78
driver and I'd like to keep the logic of these two drivers in sync.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org

9 years agohwmon: (lm78) Request I/O ports individually for probing
Jean Delvare [Fri, 5 Feb 2010 18:58:36 +0000]
hwmon: (lm78) Request I/O ports individually for probing

Different motherboards have different PNP declarations for LM78/LM79
chips. Some declare the whole range of I/O ports (8 ports), some
declare only the useful ports (2 ports at offset 5) and some declare
fancy ranges, for example 4 ports at offset 4. To properly handle all
cases, request all ports individually for probing. After we have
determined that we really have an LM78 or LM79 chip, the useful port
range will be requested again, as a single block.

This fixes the driver on the Olivetti M3000 DT 540, at least.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org

9 years agohwmon: (adt7462) Wrong ADT7462_VOLT_COUNT
Ray Copeland [Fri, 5 Feb 2010 18:58:35 +0000]
hwmon: (adt7462) Wrong ADT7462_VOLT_COUNT

The #define ADT7462_VOLT_COUNT is wrong, it should be 13 not 12. All the
for loops that use this as a limit count are of the typical form, "for
(n = 0; n < ADT7462_VOLT_COUNT; n++)", so to loop through all voltages
w/o missing the last one it is necessary for the count to be one greater
than it is.  (Specifically, you will miss the +1.5V 3GPIO input with count
= 12 vs. 13.)

Signed-off-by: Ray Copeland <ray.copeland@aprius.com>
Acked-by: "Darrick J. Wong" <djwong@us.ibm.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org

9 years agoMerge remote branch 'alsa/fixes' into for-linus
Takashi Iwai [Fri, 5 Feb 2010 18:57:23 +0000]
Merge remote branch 'alsa/fixes' into for-linus

9 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Fri, 5 Feb 2010 18:57:16 +0000]
Merge branch 'fix/asoc' into for-linus

9 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Fri, 5 Feb 2010 18:56:55 +0000]
Merge branch 'fix/hda' into for-linus

9 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Fri, 5 Feb 2010 15:58:21 +0000]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [libata] Call flush_dcache_page after PIO data transfers in libata-sff.c
  ahci: add Acer G725 to broken suspend list
  libata: fix ata_id_logical_per_physical_sectors
  libata-scsi passthru: fix bug which truncated LBA48 return values

9 years agoCS5536: apply pci quirk for BIOS SMBUS bug
Andres Salomon [Fri, 5 Feb 2010 06:42:43 +0000]
CS5536: apply pci quirk for BIOS SMBUS bug

The new cs5535-* drivers use PCI header config info rather than MSRs to
determine the memory region to use for things like GPIOs and MFGPTs.  As
anticipated, we've run into a buggy BIOS:

[    0.081818] pci 0000:00:14.0: reg 10: [io  0x6000-0x7fff]
[    0.081906] pci 0000:00:14.0: reg 14: [io  0x6100-0x61ff]
[    0.082015] pci 0000:00:14.0: reg 18: [io  0x6200-0x63ff]
[    0.082917] pci 0000:00:14.2: reg 20: [io  0xe000-0xe00f]
[    0.083551] pci 0000:00:15.0: reg 10: [mem 0xa0010000-0xa0010fff]
[    0.084436] pci 0000:00:15.1: reg 10: [mem 0xa0011000-0xa0011fff]
[    0.088816] PCI: pci_cache_line_size set to 32 bytes
[    0.088938] pci 0000:00:14.0: address space collision: [io 0x6100-0x61ff] already in use
[    0.089052] pci 0000:00:14.0: can't reserve [io  0x6100-0x61ff]

This is a Soekris board, and its BIOS sets the size of the PCI ISA bridge
device's BAR0 to 8k.  In reality, it should be 8 bytes (BAR0 is used for
SMBus stuff).  This quirk checks for an incorrect size, and resets it
accordingly.

Signed-off-by: Andres Salomon <dilinger@collabora.co.uk>
Tested-by: Leigh Porter <leigh@leighporter.org>
Tested-by: Jens Rottmann <JRottmann@LiPPERTEmbedded.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

9 years agopercpu: add __percpu for sparse
Stephen Rothwell [Fri, 5 Feb 2010 05:09:11 +0000]
percpu: add __percpu for sparse

This is to make the annotation of percpu variables during the next merge
window less painfull.

Extracted from a patch by Rusty Russell.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

9 years agoMerge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Fri, 5 Feb 2010 15:24:01 +0000]
Merge branch 'drm-linus' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: fix r300 vram width calculations
  drm/radeon/kms: rs400/480 MC setup is different than r300.
  drm/radeon/kms: make initial state of load detect property correct.
  drm/radeon/kms: disable HDMI audio for now on rv710/rv730
  drm/radeon/kms: don't call suspend path before cleaning up GPU
  drivers/gpu/drm/radeon/radeon_combios.c: fix warning
  ati_pcigart: fix printk format warning
  drm/r100/kms: Emit cache flush to the end of command buffer. (v2)
  drm/radeon/kms: fix regression rendering issue on R6XX/R7XX
  drm/radeon/kms: move blit initialization after we disabled VGA

9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
Linus Torvalds [Fri, 5 Feb 2010 15:23:03 +0000]
Merge git://git./linux/kernel/git/mason/btrfs-unstable

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: apply updated fallocate i_size fix
  Btrfs: do not try and lookup the file extent when finishing ordered io
  Btrfs: Fix oopsen when dropping empty tree.
  Btrfs: remove BUG_ON() due to mounting bad filesystem
  Btrfs: make error return negative in btrfs_sync_file()
  Btrfs: fix race between allocate and release extent buffer.

9 years agoASoC: pandora: Add APLL supply to fix audio output
Grazvydas Ignotas [Thu, 4 Feb 2010 22:55:33 +0000]
ASoC: pandora: Add APLL supply to fix audio output

Pandora's external DAC is using 256*Fs output from the TWL4030
codec, and TWL4030 needs to have APLL enabled for it's 256*Fs
output to function.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

9 years agoALSA: ice1724 - aureon - fix wm8770 volume offset
Jaroslav Kysela [Fri, 5 Feb 2010 09:19:41 +0000]
ALSA: ice1724 - aureon - fix wm8770 volume offset

The volume register is from 0..0x7f and 0..0x1a range is mute.
Also, fix mute combining in wm_vol_put(). The wrong behaviour was
noticed by Peter Christensen.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

9 years agoALSA: cosmetic: make hda intel interrupt name consistent with others
Maxim Levitsky [Thu, 4 Feb 2010 20:26:37 +0000]
ALSA: cosmetic: make hda intel interrupt name consistent with others

This renames the interrupt name in /proc/interrupt.
HDA Intel -> hda_intel

This also eliminates space from the name, probably helping some
parsers.
Don't think anybody depends on this name in userspace

Signed-off-by: Takashi Iwai <tiwai@suse.de>

9 years agoALSA: hda - Delay switching to polling mode if an interrupt was missing
Maxim Levitsky [Thu, 4 Feb 2010 20:21:47 +0000]
ALSA: hda - Delay switching to polling mode if an interrupt was missing

My sound codec seems sometimes (very rarely) to omit interrupts (ALC268)
However, interrupt mode still works.
Thus if we get timeout, poll the codec once.

If we get 3 such polls in a row, then switch to polling mode.

This patch is maybe an bandaid, but this might be a workaround for hardware bug.

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

9 years agodrm/radeon/kms: fix r300 vram width calculations
Dave Airlie [Fri, 5 Feb 2010 03:57:03 +0000]
drm/radeon/kms: fix r300 vram width calculations

This was incorrect according to the docs and the UMS driver does
it like this.

Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/radeon/kms: rs400/480 MC setup is different than r300.
Dave Airlie [Fri, 5 Feb 2010 03:41:54 +0000]
drm/radeon/kms: rs400/480 MC setup is different than r300.

Boot testing on my rs480 laptop found the MC idle never happened
on startup, a quick check with AMD found the idle bit is in a different
place on the rs4xx than r300.

Implement a new rs400 mc idle function to fix this.

Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agousb: r8a66597-hcd: Fix up spinlock recursion in root hub polling.
Paul Mundt [Thu, 4 Feb 2010 06:58:28 +0000]
usb: r8a66597-hcd: Fix up spinlock recursion in root hub polling.

The current root hub polling code exhibits a spinlock recursion on the
private controller lock. r8a66597_root_hub_control() is called from
r8a66597_timer() which grabs the lock and disables IRQs. The following
chain emerges:

  r8a66597_timer() <-- lock taken
    r8a66597_root_hub_control()
      r8a66597_check_syssts()
        usb_hcd_poll_rh_status() <-- acquires the same lock
/* insert death here */

The entire chain requires IRQs to be disabled, so we just unlock and
relock around the call to usb_hcd_poll_rh_status() while leaving the
IRQ state unchanged.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>

9 years agousb: r8a66597-hcd: Flush the D-cache for the pipe-in transfer buffers.
Paul Mundt [Thu, 4 Feb 2010 06:57:58 +0000]
usb: r8a66597-hcd: Flush the D-cache for the pipe-in transfer buffers.

This implements the same D-cache flushing logic for r8a66597-hcd as
Catalin's isp1760 (http://patchwork.kernel.org/patch/76391/) change,
with the same note applying here as well:

    When the HDC driver writes the data to the transfer buffers it
    pollutes the D-cache (unlike DMA drivers where the device writes
    the data). If the corresponding pages get mapped into user space,
    there are no additional cache flushing operations performed and
    this causes random user space faults on architectures with
    separate I and D caches (Harvard) or those with aliasing D-cache.

This fixes up crashes during USB boot on SH7724 and others:

http://marc.info/?l=linux-sh&m=126439837308912&w=2

Reported-by: Goda Yusuke <goda.yusuke@renesas.com>
Tested-by: Goda Yusuke <goda.yusuke@renesas.com>
Cc: stable@kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>

9 years agodrm/radeon/kms: make initial state of load detect property correct.
Dave Airlie [Wed, 27 Jan 2010 06:07:15 +0000]
drm/radeon/kms: make initial state of load detect property correct.

this was incorrect on my rs480.

Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/radeon/kms: disable HDMI audio for now on rv710/rv730
Dave Airlie [Fri, 5 Feb 2010 01:57:42 +0000]
drm/radeon/kms: disable HDMI audio for now on rv710/rv730

Support isn't correct yet and we are getting green tinges on the
displays.

Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/radeon/kms: don't call suspend path before cleaning up GPU
Jerome Glisse [Tue, 2 Feb 2010 10:51:45 +0000]
drm/radeon/kms: don't call suspend path before cleaning up GPU

In suspend path we unmap the GART table while in cleaning up
path we will unbind buffer and thus try to write to unmapped
GART leading to oops. In order to avoid this we don't call the
suspend path in cleanup path. Cleanup path is clever enough
to desactive GPU like the suspend path is doing, thus this was
redondant.

Tested on: RV370, R420, RV515, RV570, RV610, RV770 (all PCIE)

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrivers/gpu/drm/radeon/radeon_combios.c: fix warning
Andrew Morton [Tue, 2 Feb 2010 22:40:29 +0000]
drivers/gpu/drm/radeon/radeon_combios.c: fix warning

drivers/gpu/drm/radeon/radeon_combios.c: In function 'radeon_combios_get_lvds_info':
drivers/gpu/drm/radeon/radeon_combios.c:893: warning: comparison is always false due to limited range of data type

Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agoati_pcigart: fix printk format warning
Randy Dunlap [Tue, 2 Feb 2010 22:40:33 +0000]
ati_pcigart: fix printk format warning

Fix ati_pcigart printk format warning:

drivers/gpu/drm/ati_pcigart.c:115: warning: format '%Lx' expects type 'long long unsigned int', but argument 3 has type 'dma_addr_t'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/r100/kms: Emit cache flush to the end of command buffer. (v2)
Pauli Nieminen [Thu, 4 Feb 2010 17:20:53 +0000]
drm/r100/kms: Emit cache flush to the end of command buffer. (v2)

Cache flush is required in case CPU is accessing rendered data.

This fixes glean/readPixSanity test case and random rendering
errors in sauerbraten and warzone2100.

v2 Fix comment ordering in r100_fence_ring_emit and remove extra
   defines added in first version.

Signed-off-by: Pauli Nieminen <suokkos@gmail.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/radeon/kms: fix regression rendering issue on R6XX/R7XX
Jerome Glisse [Thu, 4 Feb 2010 19:36:39 +0000]
drm/radeon/kms: fix regression rendering issue on R6XX/R7XX

It seems that some R6XX/R7XX silently ignore HDP flush when
programmed through ring, this patch addback an ioctl callback
to allow R6XX/R7XX hw to perform such flush through MMIO in
order to fix a regression. For more details see:

http://bugzilla.kernel.org/show_bug.cgi?id=15186

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/radeon/kms: move blit initialization after we disabled VGA
Jerome Glisse [Thu, 4 Feb 2010 16:27:27 +0000]
drm/radeon/kms: move blit initialization after we disabled VGA

VGA might be overwritting VRAM and corrupt our blit shader leading
to corruption, it likely won't happen if you load fbcon right after
radeon. Thanks to Shawn Starr and Andre Maasikas for tracking down
this issue.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Fri, 5 Feb 2010 00:09:01 +0000]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: Fix wrong register in proc-arm6_7.S data abort handler
  ARM: 5909/1: ARM: Correct the FPSCR bits setting when raising exceptions
  ARM: 5904/1: ARM: Always generate the IT instruction when compiling for Thumb-2
  ARM: 5907/1: ARM: Fix the reset on the RealView PBX Development board
  mx35: add a missing comma in a pad definition
  mx25: make the FEC AHB clk secondary of the IPG
  mx25: fix time accounting
  mx25: properly initialize clocks
  mx25: remove unused mx25_clocks_init() argument
  i.MX25: implement secondary clocks for uarts and fec
  i.MX25: Allow secondary clocks in DEFINE_CLOCK
  ARM: MX3: Fixed typo in declared enum type name.
  MXC: Add AUDMUXv2 register decode to debugfs
  mx31ads: Provide an IRQ range to the WM835x on the 1133-EV1 module
  mx31ads: Provide a name for EXPIO interrupt chip
  mx31ads: Allow enable/disable of switchable supplies

9 years agoMerge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 5 Feb 2010 00:08:42 +0000]
Merge branch 'omap-fixes-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6

* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
  omap: Disable serial port autoidle by default
  omap: Fix access to already released memory in clk_debugfs_register_one()
  omap: Fix arch/arm/mach-omap2/mux.c: Off by one error
  omap: Fix 3630 mux errors
  OMAP2/3: GPMC: ensure valid clock pointer
  OMAP2/3: IRQ: ensure valid base address
  ARCH OMAP : enable ARCH_HAS_HOLES_MEMORYMODEL for OMAP
  omap: Remove old unused defines for OMAP_32KSYNCT_BASE
  omap: define _toggle_gpio_edge_triggering only for OMAP1

9 years agoMerge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
Linus Torvalds [Fri, 5 Feb 2010 00:08:15 +0000]
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:
  NFS: Don't clobber the attribute type in nfs_update_inode()
  NFS: Fix a umount race
  NFS: Fix an Oops when truncating a file
  NFS: Ensure that we handle NFS4ERR_STALE_STATEID correctly
  NFSv4.1: Don't call nfs4_schedule_state_recovery() unnecessarily
  NFSv4: Don't allow posix locking against servers that don't support it
  NFSv4: Ensure that the NFSv4 locking can recover from stateid errors
  NFS: Avoid warnings when CONFIG_NFS_V4=n
  NFS: Make nfs_commitdata_release static
  NFS: Try to commit unstable writes in nfs_release_page()
  NFS: Fix a reference leak in nfs_wb_cancel_page()

9 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 5 Feb 2010 00:07:41 +0000]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  futex: Handle futex value corruption gracefully
  futex: Handle user space corruption gracefully
  futex_lock_pi() key refcnt fix
  softlockup: Add sched_clock_tick() to avoid kernel warning on kgdb resume

9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes
Linus Torvalds [Fri, 5 Feb 2010 00:06:48 +0000]
Merge git://git./linux/kernel/git/steve/gfs2-2.6-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
  GFS2: Extend umount wait coverage to full glock lifetime
  GFS2: Wait for unlock completion on umount

9 years agoidr: revert misallocation bug fix
Tejun Heo [Thu, 4 Feb 2010 08:57:37 +0000]
idr: revert misallocation bug fix

Commit 859ddf09743a8cc680af33f7259ccd0fd36bfe9d tried to fix
misallocation bug but broke full bit marking by not clearing
pa[idp->layers] and also is causing X failures due to lookup failure
in drm code.  The cause of the latter hasn't been found yet.  Revert
the fix for now.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

9 years agoALSA: ctxfi - fix PTP address initialization
Jaroslav Kysela [Tue, 2 Feb 2010 18:58:25 +0000]
ALSA: ctxfi - fix PTP address initialization

After hours of debugging, I finally found the reason why some source
and runtime combination does not work. The PTP (page table pages)
address must be aligned. I am not sure how much, but alignment to
PAGE_SIZE is sufficient. Also, use ALSA's page allocation routines
to ensure proper virtual -> physical address translation.

Cc: <stable@kernel.org>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

9 years agodrm/i915: Fix leak of relocs along do_execbuffer error path
Chris Wilson [Sun, 31 Jan 2010 10:40:48 +0000]
drm/i915: Fix leak of relocs along do_execbuffer error path

Following a gpu hang, we would leak the relocation buffer. So simply
earrange the error path to always free the relocation buffer.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>

9 years agodrm/i915: slow acpi_lid_open() causes flickering - V2
Thomas Meyer [Tue, 2 Feb 2010 19:09:04 +0000]
drm/i915: slow acpi_lid_open() causes flickering - V2

acpi_lid_open() could take up to 10ms on my computer.  Some component is
calling the drm GETCONNECTOR ioctl many times in a row.  This results in
flickering (for example, when starting a video).  Fix it by assuming an
always connected lid status.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Eric Anholt <eric@anholt.net>

9 years agodrm/i915: Disable SR when more than one pipe is enabled
David John [Wed, 27 Jan 2010 09:49:08 +0000]
drm/i915: Disable SR when more than one pipe is enabled

Self Refresh should be disabled on dual plane configs.  Otherwise, as
the SR watermark is not calculated for such configs, switching to non
VGA mode causes FIFO underrun and display flicker.

This fixes Korg Bug #14897.

Signed-off-by: David John <davidjon@xenontk.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>

9 years agoBtrfs: apply updated fallocate i_size fix
Aneesh Kumar K.V [Thu, 4 Feb 2010 16:33:03 +0000]
Btrfs: apply updated fallocate i_size fix

This version of the i_size fix for fallocate makes sure we only update
the i_size when the current fallocate is really operating outside of
i_size.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

9 years agoBtrfs: do not try and lookup the file extent when finishing ordered io
Josef Bacik [Tue, 2 Feb 2010 20:50:10 +0000]
Btrfs: do not try and lookup the file extent when finishing ordered io

When running the following fio job

[torrent]
filename=torrent-test
rw=randwrite
size=4g
filesize=4g
bs=4k
ioengine=sync

you would see long stalls where no work was being done.  That is because we were
doing all this extra work to read in the file extent outside of the transaction,
however in the random io case this ends up hurting us because the file extents
are not there to begin with.  So axe this logic, since we end up reading in the
file extent when we go to update it anyway.  This took the fio job from 11 mb/s
with several ~10 second stalls to 24 mb/s to a couple of 1-2 second stalls.

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

9 years agoBtrfs: Fix oopsen when dropping empty tree.
Yan, Zheng [Mon, 1 Feb 2010 02:41:17 +0000]
Btrfs: Fix oopsen when dropping empty tree.

When dropping a empty tree, walk_down_tree() skips checking
extent information for the tree root. This will triggers a
BUG_ON in walk_up_proc().

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

9 years agoBtrfs: remove BUG_ON() due to mounting bad filesystem
Miao Xie [Tue, 2 Feb 2010 08:46:44 +0000]
Btrfs: remove BUG_ON() due to mounting bad filesystem

Mounting a bad filesystem caused a BUG_ON(). The following is steps to
reproduce it.
 # mkfs.btrfs /dev/sda2
 # mount /dev/sda2 /mnt
 # mkfs.btrfs /dev/sda1 /dev/sda2
 (the program says that /dev/sda2 was mounted, and then exits. )
 # umount /mnt
 # mount /dev/sda1 /mnt

At the third step, mkfs.btrfs exited in the way of make filesystem. So the
initialization of the filesystem didn't finish. So the filesystem was bad, and
it caused BUG_ON() when mounting it. But BUG_ON() should be called by the wrong
code, not user's operation, so I think it is a bug of btrfs.

This patch fixes it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

9 years agoBtrfs: make error return negative in btrfs_sync_file()
Roel Kluin [Fri, 29 Jan 2010 10:42:11 +0000]
Btrfs: make error return negative in btrfs_sync_file()

It appears the error return should be negative

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

9 years agoBtrfs: fix race between allocate and release extent buffer.
Yan, Zheng [Thu, 4 Feb 2010 08:46:56 +0000]
Btrfs: fix race between allocate and release extent buffer.

Increase extent buffer's reference count while holding the lock.
Otherwise it can race with try_release_extent_buffer.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

9 years ago[libata] Call flush_dcache_page after PIO data transfers in libata-sff.c
Catalin Marinas [Thu, 4 Feb 2010 06:04:50 +0000]
[libata] Call flush_dcache_page after PIO data transfers in libata-sff.c

flush_dcache_page() must be called after (!ATA_TFLAG_WRITE) the
data copying to avoid D-cache aliasing with user space or I-D cache
coherency issues (when reading data from an ATA device using PIO,
the kernel dirties the D-cache but there is no flush_dcache_page()
required on Harvard architectures).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

9 years agoahci: add Acer G725 to broken suspend list
Tejun Heo [Thu, 28 Jan 2010 07:04:15 +0000]
ahci: add Acer G725 to broken suspend list

Acer G725 shares the same suspend problem with the HP laptops which
lose ATA devices on resume.  New firmware which fixes the problem is
already available.  Add G725 with old firmwares to the broken suspend
list.

This problem has been reported in bko#15104.

  http://bugzilla.kernel.org/show_bug.cgi?id=15104

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Jani-Matti Hätinen <jani-matti.hatinen@iki.fi>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

9 years agolibata: fix ata_id_logical_per_physical_sectors
Christoph Hellwig [Thu, 28 Jan 2010 12:30:11 +0000]
libata: fix ata_id_logical_per_physical_sectors

The value we get from the low byte of the ATA_ID_SECTOR_SIZE word is not not
a plain multiple, but the log of it, so fix the helper to give the correct
answer.  Without this we'll get an incorrect minimal I/O size in the block
limits VPD page for 4k sector drives.

Also change the return value of ata_id_logical_per_physical_sectors to u16
for the unlikely case of very large logical sectors.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

9 years agolibata-scsi passthru: fix bug which truncated LBA48 return values
Douglas Gilbert [Mon, 1 Feb 2010 18:11:38 +0000]
libata-scsi passthru: fix bug which truncated LBA48 return values

Fix assignment which overwrote SAT ATA PASS-THROUGH command EXTEND
bit setting (ATA_TFLAG_LBA48)

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

9 years agoocfs2/dlm: Remove BUG_ON in dlm recovery when freeing locks of a dead node
Sunil Mushran [Tue, 2 Feb 2010 01:34:58 +0000]
ocfs2/dlm: Remove BUG_ON in dlm recovery when freeing locks of a dead node

During recovery, the dlm frees the locks for the dead node. If it finds a
lock in a resource for the dead node, it expects that node to also have a
ref in that lock resource. If not, it BUGs.

ossbz#1175 was filed with the above BUG. Now, while it is correct that we
should be expecting the ref, I see no reason why we have to BUG. After all,
we are freeing up the lock and clearing the ref.

This patch replaces the BUG_ON with a printk(). Hopefully, that will give
us more clues next time this happens.

http://oss.oracle.com/bugzilla/show_bug.cgi?id=1175

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Acked-by: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

9 years agoocfs2: Plugs race between the dc thread and an unlock ast message
Sunil Mushran [Wed, 3 Feb 2010 18:16:54 +0000]
ocfs2: Plugs race between the dc thread and an unlock ast message

This patch plugs a race between the downconvert thread and an unlock ast message.
Specifically, after the downconvert worker has done its task, the dc thread needs
to check whether an unlock ast made the downconvert moot.

Reported-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Acked-by: Mark Fasheh <mfasheh@sus.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

9 years agoMerge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze
Linus Torvalds [Thu, 4 Feb 2010 00:08:50 +0000]
Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze

* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: fix interrupt state restore
  microblaze: Defconfig update

9 years agoMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Thu, 4 Feb 2010 00:08:36 +0000]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-2.6

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
  saa7146: stop DMA before de-allocating DMA scatter/gather page buffers
  V4L/DVB: saa7134: remove stray unlock_kernel

9 years agoomap: Disable serial port autoidle by default
Tony Lindgren [Mon, 1 Feb 2010 20:34:31 +0000]
omap: Disable serial port autoidle by default

Currently the omap serial clocks are autoidled after 5 seconds.
However, this causes lost characters on the serial ports. As this
is considered non-standard behaviour for Linux, disable the timeout.

Note that this will also cause blocking of any deeper omap sleep
states.

To enable the autoidling of the serial ports, do something like
this for each serial port:

# echo 5 > /sys/devices/platform/serial8250.0/sleep_timeout
# echo 5 > /sys/devices/platform/serial8250.1/sleep_timeout
...

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

9 years agoomap: Fix access to already released memory in clk_debugfs_register_one()
Marek Skuczynski [Sun, 31 Jan 2010 10:00:54 +0000]
omap: Fix access to already released memory in clk_debugfs_register_one()

I have found an access to already released memory in
clk_debugfs_register_one() function.

Signed-off-by: Marek Skuczynski <mareksk7@gmail.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

9 years agoomap: Fix arch/arm/mach-omap2/mux.c: Off by one error
Tony Lindgren [Mon, 1 Feb 2010 21:03:42 +0000]
omap: Fix arch/arm/mach-omap2/mux.c: Off by one error

David Binderman ran the sourceforge tool cppcheck over the source code of the
new Linux kernel 2.6.33-rc6:

[./arm/mach-omap2/mux.c:492]: (error) Buffer access out-of-bounds

13 characters + 1 digit + 1 zero byte is more than 14 characters.

Also add a comment on mode0 name length in case new omaps
start using longer names.

Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

9 years agoomap: Fix 3630 mux errors
Tony Lindgren [Mon, 1 Feb 2010 19:22:54 +0000]
omap: Fix 3630 mux errors

3630 has more mux signals than 34xx. The additional pins
exist in omap36xx_cbp_subset, but are not initialized
as the superset is missing these offsets. This causes
the following errors during the boot:

mux: Unknown entry offset 0x236
mux: Unknown entry offset 0x22e
mux: Unknown entry offset 0x1ec
mux: Unknown entry offset 0x1ee
mux: Unknown entry offset 0x1f4
mux: Unknown entry offset 0x1f6
mux: Unknown entry offset 0x1f8
mux: Unknown entry offset 0x1fa
mux: Unknown entry offset 0x1fc
mux: Unknown entry offset 0x22a
mux: Unknown entry offset 0x226
mux: Unknown entry offset 0x230
mux: Unknown entry offset 0x22c
mux: Unknown entry offset 0x228

Fix this by adding the missing offsets to omap3 superset.
Note that additionally the uninitialized pins need to be
skipped on 34xx.

Based on an earlier patch by Allen Pais <allen.pais@ti.com>.

Reported-by: Allen Pais <allen.pais@ti.com>
Signed-off-by: Allen Pais <allen.pais@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

9 years agoOMAP2/3: GPMC: ensure valid clock pointer
Kevin Hilman [Fri, 29 Jan 2010 22:20:06 +0000]
OMAP2/3: GPMC: ensure valid clock pointer

Ensure valid clock pointer during GPMC init.  Fixes compiler
warning about potential use of uninitialized variable.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

9 years agoOMAP2/3: IRQ: ensure valid base address
Kevin Hilman [Fri, 29 Jan 2010 22:20:06 +0000]
OMAP2/3: IRQ: ensure valid base address

Ensure valid base address during IRQ init.  Fixes compiler warning
about potential use of uninitialized variable.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

9 years agoARCH OMAP : enable ARCH_HAS_HOLES_MEMORYMODEL for OMAP
Sriram [Fri, 29 Jan 2010 22:20:05 +0000]
ARCH OMAP : enable ARCH_HAS_HOLES_MEMORYMODEL for OMAP

OMAP platforms(like OMAP3530) include DSP or other co-processors
for media acceleration. when carving out memory for the
accelerators we can end up creating a hole in the memory map
of sort:
<kernel memory><hole(memory for accelerator)><kernel memory>

To handle such a memory configuration ARCH_HAS_HOLES_MEMORYMODEL
has to be enabled. For further information refer discussion at:
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg15262.html.

Signed-off-by: Sriramakrishnan <srk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

9 years agoomap: Remove old unused defines for OMAP_32KSYNCT_BASE
Tony Lindgren [Fri, 29 Jan 2010 22:20:05 +0000]
omap: Remove old unused defines for OMAP_32KSYNCT_BASE

Remove old unused defines for OMAP_32KSYNCT_BASE

Signed-off-by: Tony Lindgren <tony@atomide.com>

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke...
Linus Torvalds [Wed, 3 Feb 2010 16:47:15 +0000]
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 potential leak of dirty data on umount

9 years agoARM: Fix wrong register in proc-arm6_7.S data abort handler
Russell King [Wed, 3 Feb 2010 15:48:03 +0000]
ARM: Fix wrong register in proc-arm6_7.S data abort handler

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

9 years agofutex: Handle futex value corruption gracefully
Thomas Gleixner [Wed, 3 Feb 2010 08:33:05 +0000]
futex: Handle futex value corruption gracefully

The WARN_ON in lookup_pi_state which complains about a mismatch
between pi_state->owner->pid and the pid which we retrieved from the
user space futex is completely bogus.

The code just emits the warning and then continues despite the fact
that it detected an inconsistent state of the futex. A conveniant way
for user space to spam the syslog.

Replace the WARN_ON by a consistency check. If the values do not match
return -EINVAL and let user space deal with the mess it created.

This also fixes the missing task_pid_vnr() when we compare the
pi_state->owner pid with the futex value.

Reported-by: Jermome Marchand <jmarchan@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Darren Hart <dvhltc@us.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: <stable@kernel.org>