pandora-kernel.git
11 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Thu, 2 Dec 2010 17:13:36 +0000 (09:13 -0800)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: only run xfs_error_test if error injection is active
  xfs: avoid moving stale inodes in the AIL
  xfs: delayed alloc blocks beyond EOF are valid after writeback
  xfs: push stale, pinned buffers on trylock failures
  xfs: fix failed write truncation handling.

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
Linus Torvalds [Thu, 2 Dec 2010 16:06:16 +0000 (08:06 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/lrg/voltage-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
  regulator: fix kernel-doc for set_consumer_device_supply
  regulator: enable supply regulator only when use count is zero
  regulator: twl-regulator - fix twlreg_set_mode
  regulator: lock supply in regulator enable
  regulator: Return proper error for regulator_register()
  regulator: Ensure enough delay time for enabling regulator
  regulator: Remove a redundant device_remove_file call in create_regulator
  regulator: Staticise mc13783_powermisc_rmw()
  regulator: regulator disable supply fix

11 years agoMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Thu, 2 Dec 2010 16:05:56 +0000 (08:05 -0800)]
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:
  [media] v4l: Remove module_name argument to the v4l2_i2c_new_subdev* functions
  [media] v4l: Remove hardcoded module names passed to v4l2_i2c_new_subdev* (2)

11 years agoMerge branch 'rbd-sysfs' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Thu, 2 Dec 2010 16:05:22 +0000 (08:05 -0800)]
Merge branch 'rbd-sysfs' of git://git./linux/kernel/git/sage/ceph-client

* 'rbd-sysfs' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: replace the rbd sysfs interface

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Thu, 2 Dec 2010 16:04:21 +0000 (08:04 -0800)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: fix parsing of hostname in dfs referrals
  cifs: display fsc in /proc/mounts
  cifs: enable fscache iff fsc mount option is used explicitly
  cifs: allow fsc mount option only if CONFIG_CIFS_FSCACHE is set
  cifs: Handle extended attribute name cifs_acl to generate cifs acl blob (try #4)
  cifs: Misc. cleanup in cifsacl handling [try #4]
  cifs: trivial comment fix for cifs_invalidate_mapping
  [CIFS] fs/cifs/Kconfig: CIFS depends on CRYPTO_HMAC
  cifs: don't take extra tlink reference in initiate_cifs_search
  cifs: Percolate error up to the caller during get/set acls [try #4]
  cifs: fix another memleak, in cifs_root_iget
  cifs: fix potential use-after-free in cifs_oplock_break_put

11 years agorbd: replace the rbd sysfs interface
Yehuda Sadeh [Fri, 19 Nov 2010 22:51:04 +0000 (14:51 -0800)]
rbd: replace the rbd sysfs interface

The new interface creates directories per mapped image
and under each it creates a subdir per available snapshot.
This allows keeping a cleaner interface within the sysfs
guidelines. The ABI documentation was updated too.

Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
11 years agoxfs: only run xfs_error_test if error injection is active
Dave Chinner [Tue, 30 Nov 2010 04:15:31 +0000 (15:15 +1100)]
xfs: only run xfs_error_test if error injection is active

Recent tests writing lots of small files showed the flusher thread
being CPU bound and taking a long time to do allocations on a debug
kernel. perf showed this as the prime reason:

             samples  pcnt function                    DSO
             _______ _____ ___________________________ _________________

           224648.00 36.8% xfs_error_test              [kernel.kallsyms]
            86045.00 14.1% xfs_btree_check_sblock      [kernel.kallsyms]
            39778.00  6.5% prandom32                   [kernel.kallsyms]
            37436.00  6.1% xfs_btree_increment         [kernel.kallsyms]
            29278.00  4.8% xfs_btree_get_rec           [kernel.kallsyms]
            27717.00  4.5% random32                    [kernel.kallsyms]

Walking btree blocks during allocation checking them requires each
block (a cache hit, so no I/O) call xfs_error_test(), which then
does a random32() call as the first operation.  IOWs, ~50% of the
CPU is being consumed just testing whether we need to inject an
error, even though error injection is not active.

Kill this overhead when error injection is not active by adding a
global counter of active error traps and only calling into
xfs_error_test when fault injection is active.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
11 years agoxfs: avoid moving stale inodes in the AIL
Dave Chinner [Tue, 30 Nov 2010 04:15:46 +0000 (15:15 +1100)]
xfs: avoid moving stale inodes in the AIL

When an inode has been marked stale because the cluster is being
freed, we don't want to (re-)insert this inode into the AIL. There
is a race condition where the cluster buffer may be unpinned before
the inode is inserted into the AIL during transaction committed
processing. If the buffer is unpinned before the inode item has been
committed and inserted, then it is possible for the buffer to be
released and hence processthe stale inode callbacks before the inode
is inserted into the AIL.

In this case, we then insert a clean, stale inode into the AIL which
will never get removed by an IO completion. It will, however, get
reclaimed and that triggers an assert in xfs_inode_free()
complaining about freeing an inode still in the AIL.

This race can be avoided by not moving stale inodes forward in the AIL
during transaction commit completion processing. This closes the
race condition by ensuring we never insert clean stale inodes into
the AIL. It is safe to do this because a dirty stale inode, by
definition, must already be in the AIL.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
11 years agoxfs: delayed alloc blocks beyond EOF are valid after writeback
Dave Chinner [Tue, 30 Nov 2010 04:16:02 +0000 (15:16 +1100)]
xfs: delayed alloc blocks beyond EOF are valid after writeback

There is an assumption in the parts of XFS that flushing a dirty
file will make all the delayed allocation blocks disappear from an
inode. That is, that after calling xfs_flush_pages() then
ip->i_delayed_blks will be zero.

This is an invalid assumption as we may have specualtive
preallocation beyond EOF and they are recorded in
ip->i_delayed_blks. A flush of the dirty pages of an inode will not
change the state of these blocks beyond EOF, so a non-zero
deeelalloc block count after a flush is valid.

The bmap code has an invalid ASSERT() that needs to be removed, and
the swapext code has a bug in that while it swaps the data forks
around, it fails to swap the i_delayed_blks counter associated with
the fork and hence can get the block accounting wrong.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
11 years agoxfs: push stale, pinned buffers on trylock failures
Dave Chinner [Tue, 30 Nov 2010 04:16:16 +0000 (15:16 +1100)]
xfs: push stale, pinned buffers on trylock failures

As reported by Nick Piggin, XFS is suffering from long pauses under
highly concurrent workloads when hosted on ramdisks. The problem is
that an inode buffer is stuck in the pinned state in memory and as a
result either the inode buffer or one of the inodes within the
buffer is stopping the tail of the log from being moved forward.

The system remains in this state until a periodic log force issued
by xfssyncd causes the buffer to be unpinned. The main problem is
that these are stale buffers, and are hence held locked until the
transaction/checkpoint that marked them state has been committed to
disk. When the filesystem gets into this state, only the xfssyncd
can cause the async transactions to be committed to disk and hence
unpin the inode buffer.

This problem was encountered when scaling the busy extent list, but
only the blocking lock interface was fixed to solve the problem.
Extend the same fix to the buffer trylock operations - if we fail to
lock a pinned, stale buffer, then force the log immediately so that
when the next attempt to lock it comes around, it will have been
unpinned.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
11 years agoxfs: fix failed write truncation handling.
Dave Chinner [Tue, 30 Nov 2010 04:14:39 +0000 (15:14 +1100)]
xfs: fix failed write truncation handling.

Since the move to the new truncate sequence we call xfs_setattr to
truncate down excessively instanciated blocks.  As shown by the testcase
in kernel.org BZ #22452 that doesn't work too well.  Due to the confusion
of the internal inode size, and the VFS inode i_size it zeroes data that
it shouldn't.

But full blown truncate seems like overkill here.  We only instanciate
delayed allocations in the write path, and given that we never released
the iolock we can't have converted them to real allocations yet either.

The only nasty case is pre-existing preallocation which we need to skip.
We already do this for page discard during writeback, so make the delayed
allocation block punching a generic function and call it from the failed
write path as well as xfs_aops_discard_page. The callers are
responsible for ensuring that partial blocks are not truncated away,
and that they hold the ilock.

Based on a fix originally from Christoph Hellwig. This version used
filesystem blocks as the range unit.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
11 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Wed, 1 Dec 2010 04:13:35 +0000 (20:13 -0800)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: add workaround for dce3 ddc line vbios bug
  drm/radeon/kms: fix interlaced and doublescan handling
  drm/radeon/kms: fix typos in disabled vbios code
  Revert "drm/i915/dp: use VBT provided eDP params if available"
  drm/i915: Clear pfit registers when not used by any outputs
  drm: record monitor status in output_poll_execute
  drm: Set connector DPMS status to ON in drm_crtc_helper_set_config
  drm/i915: fix regression due to ba3d8d749b01548b9
  Revert "drm/radeon/kms: fix typo in r600 cs checker"
  drm/i915/sdvo: Always add a 30ms delay to make SDVO TV detection reliable
  MAINTAINERS: INTEL DRM DRIVERS list (intel-gfx) is subscribers-only
  drm/i915/sdvo: Always fallback to querying the shared DDC line
  drm/i915: Handle pagefaults in execbuffer user relocations
  drm/i915/sdvo: Only enable HDMI encodings only if the commandset is supported
  drm/radeon/kms: fix resume regression for some r5xx laptops
  drm/radeon/kms: fix regression in rs4xx i2c setup
  drm/i915: Only save/restore cursor regs if !KMS
  drm/i915: Prevent integer overflow when validating the execbuffer

11 years agodrm/radeon/kms: add workaround for dce3 ddc line vbios bug
Alex Deucher [Tue, 30 Nov 2010 05:15:10 +0000 (00:15 -0500)]
drm/radeon/kms: add workaround for dce3 ddc line vbios bug

fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=23752

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc:stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm/radeon/kms: fix interlaced and doublescan handling
Alex Deucher [Tue, 30 Nov 2010 20:46:47 +0000 (15:46 -0500)]
drm/radeon/kms: fix interlaced and doublescan handling

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm/radeon/kms: fix typos in disabled vbios code
Alex Deucher [Wed, 1 Dec 2010 00:11:45 +0000 (19:11 -0500)]
drm/radeon/kms: fix typos in disabled vbios code

6xx/7xx was hitting the wrong BUS_CNTL reg and bits.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agoMerge remote branch 'intel/drm-intel-fixes' of /ssd/git/drm-next into drm-fixes
Dave Airlie [Wed, 1 Dec 2010 02:10:34 +0000 (12:10 +1000)]
Merge remote branch 'intel/drm-intel-fixes' of /ssd/git/drm-next into drm-fixes

* 'intel/drm-intel-fixes' of /ssd/git/drm-next:
  Revert "drm/i915/dp: use VBT provided eDP params if available"
  drm/i915: Clear pfit registers when not used by any outputs
  drm/i915: fix regression due to ba3d8d749b01548b9

11 years agoMerge branch 'for_linus' of git://github.com/at91linux/linux-2.6-at91
Linus Torvalds [Wed, 1 Dec 2010 01:57:57 +0000 (17:57 -0800)]
Merge branch 'for_linus' of git://github.com/at91linux/linux-2.6-at91

* 'for_linus' of git://github.com/at91linux/linux-2.6-at91:
  at91/board-yl-9200: fix typo in video support
  atmel_spi: fix warning In function 'atmel_spi_dma_map_xfer'
  at91/picotux200: remove commenting usb device and dataflash support
  at91: rename rm9200ek and rm9200dk board file name
  at91rm9200ek: fix warning: 'ek_mmc_data' defined but not used
  at91rm9200dk: fix warning: 'dk_mmc_data' defined but not used
  at91: Convert remaining boards to new-style UART initialization
  at91: merge all at91rm9200 defconfig in one single file

11 years agoexec: copy-and-paste the fixes into compat_do_execve() paths
Oleg Nesterov [Tue, 30 Nov 2010 19:56:02 +0000 (20:56 +0100)]
exec: copy-and-paste the fixes into compat_do_execve() paths

Note: this patch targets 2.6.37 and tries to be as simple as possible.
That is why it adds more copy-and-paste horror into fs/compat.c and
uglifies fs/exec.c, this will be cleanuped later.

compat_copy_strings() plays with bprm->vma/mm directly and thus has
two problems: it lacks the RLIMIT_STACK check and argv/envp memory
is not visible to oom killer.

Export acct_arg_size() and get_arg_page(), change compat_copy_strings()
to use get_arg_page(), change compat_do_execve() to do acct_arg_size(0)
as do_execve() does.

Add the fatal_signal_pending/cond_resched checks into compat_count() and
compat_copy_strings(), this matches the code in fs/exec.c and certainly
makes sense.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoexec: make argv/envp memory visible to oom-killer
Oleg Nesterov [Tue, 30 Nov 2010 19:55:34 +0000 (20:55 +0100)]
exec: make argv/envp memory visible to oom-killer

Brad Spengler published a local memory-allocation DoS that
evades the OOM-killer (though not the virtual memory RLIMIT):
http://www.grsecurity.net/~spender/64bit_dos.c

execve()->copy_strings() can allocate a lot of memory, but
this is not visible to oom-killer, nobody can see the nascent
bprm->mm and take it into account.

With this patch get_arg_page() increments current's MM_ANONPAGES
counter every time we allocate the new page for argv/envp. When
do_execve() succeds or fails, we change this counter back.

Technically this is not 100% correct, we can't know if the new
page is swapped out and turn MM_ANONPAGES into MM_SWAPENTS, but
I don't think this really matters and everything becomes correct
once exec changes ->mm or fails.

Reported-by: Brad Spengler <spender@grsecurity.net>
Reviewed-and-discussed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agocifs: fix parsing of hostname in dfs referrals
Jeff Layton [Tue, 30 Nov 2010 20:14:48 +0000 (15:14 -0500)]
cifs: fix parsing of hostname in dfs referrals

The DFS referral parsing code does a memchr() call to find the '\\'
delimiter that separates the hostname in the referral UNC from the
sharename. It then uses that value to set the length of the hostname via
pointer subtraction.  Instead of subtracting the start of the hostname
however, it subtracts the start of the UNC, which causes the code to
pass in a hostname length that is 2 bytes too long.

Regression introduced in commit 1a4240f4.

Reported-and-Tested-by: Robbert Kouprie <robbert@exx.nl>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Cc: Wang Lei <wang840925@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Steve French <sfrench@us.ibm.com>
11 years agoNFS: Fix a readdirplus bug
Trond Myklebust [Tue, 30 Nov 2010 17:42:34 +0000 (12:42 -0500)]
NFS: Fix a readdirplus bug

When comparing filehandles in the helper nfs_same_file(), we should not be
using 'strncmp()': filehandles are not null terminated strings.

Instead, we should just use the existing helper nfs_compare_fh().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoat91/board-yl-9200: fix typo in video support
Jean-Christophe PLAGNIOL-VILLARD [Sun, 21 Nov 2010 03:24:07 +0000 (11:24 +0800)]
at91/board-yl-9200: fix typo in video support

for the epson frambuffer support it's CONFIG_FB_S1D13XXX
not CONFIG_FB_S1D135XX

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
11 years agoatmel_spi: fix warning In function 'atmel_spi_dma_map_xfer'
Jean-Christophe PLAGNIOL-VILLARD [Sat, 20 Nov 2010 06:52:53 +0000 (14:52 +0800)]
atmel_spi: fix warning In function 'atmel_spi_dma_map_xfer'

passing argument 2 of 'dma_map_single' discards qualifiers from pointer target type

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
11 years agoat91/picotux200: remove commenting usb device and dataflash support
Jean-Christophe PLAGNIOL-VILLARD [Sun, 21 Nov 2010 02:31:19 +0000 (10:31 +0800)]
at91/picotux200: remove commenting usb device and dataflash support

as based on http://www.picotux.com/pt200/picotux200.pdf
these board does not have such I/O

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
11 years agoat91: rename rm9200ek and rm9200dk board file name
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:34:38 +0000 (22:34 +0800)]
at91: rename rm9200ek and rm9200dk board file name

to be a few more concistant with the other boards

as ek is for evaluation kit and dk for development kit

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
11 years agoat91rm9200ek: fix warning: 'ek_mmc_data' defined but not used
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:31:35 +0000 (22:31 +0800)]
at91rm9200ek: fix warning: 'ek_mmc_data' defined but not used

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
11 years agoat91rm9200dk: fix warning: 'dk_mmc_data' defined but not used
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:31:03 +0000 (22:31 +0800)]
at91rm9200dk: fix warning: 'dk_mmc_data' defined but not used

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
11 years agoat91: Convert remaining boards to new-style UART initialization
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:23:28 +0000 (22:23 +0800)]
at91: Convert remaining boards to new-style UART initialization

Convert the following AT91RM9200-based boards to the new-style UART
initialization:
  - Ajeco 1ARM Single Board Computer
  - Sperry-Sun KAFA board
  - picotux 200

Remove the deprecated at91_init_serial

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
11 years agoregulator: fix kernel-doc for set_consumer_device_supply
Randy Dunlap [Thu, 18 Nov 2010 23:02:26 +0000 (15:02 -0800)]
regulator: fix kernel-doc for set_consumer_device_supply

Fix kernel-doc warning for set_consumer_device_supply():

Warning(drivers/regulator/core.c:912): missing initial short description on line:
 * set_consumer_device_supply: Bind a regulator to a symbolic supply

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
11 years agoregulator: enable supply regulator only when use count is zero
Bengt Jonsson [Wed, 10 Nov 2010 10:06:22 +0000 (11:06 +0100)]
regulator: enable supply regulator only when use count is zero

Supply regulators are disabled only when the last
reference count is removed on the child regulator
(the use count goes from 1 to 0). This patch changes
the behaviour of enable so the supply regulator is
enabled only when the use count of the child
regulator goes from 0 to 1.

Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
11 years agoregulator: twl-regulator - fix twlreg_set_mode
Axel Lin [Fri, 22 Oct 2010 08:38:22 +0000 (16:38 +0800)]
regulator: twl-regulator - fix twlreg_set_mode

The Singular Message is 16 bits:
        DEV_GRP[15:13] MT[12]  RES_ID[11:4]  RES_STATE[3:0]

Current implementation return immedially after sucessfuly write MSB part.
To properly set mode, we need to write the complete message ( MSB and LSB ).

In twl.h, now we have defines for PM Master module register offsets,
use it instead of hard coded 0x15/0x16.

Use "message & 0xff" to ensure we send correct value for LSB.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: Lesly Arackal Manuel <leslyam@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
11 years agoregulator: lock supply in regulator enable
Mattias Wallin [Thu, 4 Nov 2010 10:01:31 +0000 (11:01 +0100)]
regulator: lock supply in regulator enable

This patch add locks around regulator supply enable.

Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
11 years agoregulator: Return proper error for regulator_register()
Axel Lin [Fri, 5 Nov 2010 07:27:17 +0000 (15:27 +0800)]
regulator: Return proper error for regulator_register()

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
11 years agoregulator: Ensure enough delay time for enabling regulator
Axel Lin [Fri, 5 Nov 2010 13:51:32 +0000 (21:51 +0800)]
regulator: Ensure enough delay time for enabling regulator

Integer division will truncate the result, this patch ensures we have
enough delay time for enabling regulator.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
11 years agoregulator: Remove a redundant device_remove_file call in create_regulator
Axel Lin [Fri, 5 Nov 2010 07:25:12 +0000 (15:25 +0800)]
regulator: Remove a redundant device_remove_file call in create_regulator

We already have device_remove_file() in error path,
no need to call it before goto link_name_err.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
11 years agoregulator: Staticise mc13783_powermisc_rmw()
Mark Brown [Wed, 3 Nov 2010 04:08:04 +0000 (00:08 -0400)]
regulator: Staticise mc13783_powermisc_rmw()

It is not used outside this driver so no need to make the symbol global.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Alberto Panizzo <maramaopercheseimorto@gmail.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
11 years agoregulator: regulator disable supply fix
Mattias Wallin [Tue, 2 Nov 2010 13:55:34 +0000 (14:55 +0100)]
regulator: regulator disable supply fix

This patch fixes a disable failure when regulator supply is used.
A while loop in regulator disable checks for supply pointer != NULL
but the pointer is not always updated, resulting in the while loop
running too many times causing a disable failure.

Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
11 years agoat91: merge all at91rm9200 defconfig in one single file
Eric Benard [Fri, 15 Oct 2010 09:27:17 +0000 (11:27 +0200)]
at91: merge all at91rm9200 defconfig in one single file

About all options present in each file are activated
in the single file.

Signed-off-by: Eric Benard <eric@eukrea.com>
Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
11 years agoRevert "drm/i915/dp: use VBT provided eDP params if available"
Chris Wilson [Mon, 29 Nov 2010 10:09:55 +0000 (10:09 +0000)]
Revert "drm/i915/dp: use VBT provided eDP params if available"

This reverts commit 869184a675662bddcdf76c5b95665272facff2b8.

This is required for the Sony Vaio Jesse was working on at the time, but
breaks most other eDP machines - machines that were working in earlier
kernels.

Reported-and-tested-by: Dave Airlie <airlied@redhat.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31188
Tested-by: Zhao Jian <jian.j.zhao@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
11 years agocifs: display fsc in /proc/mounts
Suresh Jayaraman [Wed, 24 Nov 2010 12:19:07 +0000 (17:49 +0530)]
cifs: display fsc in /proc/mounts

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
11 years agocifs: enable fscache iff fsc mount option is used explicitly
Suresh Jayaraman [Wed, 24 Nov 2010 12:19:06 +0000 (17:49 +0530)]
cifs: enable fscache iff fsc mount option is used explicitly

Currently, if CONFIG_CIFS_FSCACHE is set, fscache is enabled on files opened
as read-only irrespective of the 'fsc' mount option. Fix this by enabling
fscache only if 'fsc' mount option is specified explicitly.

Remove an extraneous cFYI debug message and fix a typo while at it.

Reported-by: Jeff Layton <jlayton@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
11 years agocifs: allow fsc mount option only if CONFIG_CIFS_FSCACHE is set
Suresh Jayaraman [Wed, 24 Nov 2010 12:19:05 +0000 (17:49 +0530)]
cifs: allow fsc mount option only if CONFIG_CIFS_FSCACHE is set

Currently, it is possible to specify 'fsc' mount option even if
CONFIG_CIFS_FSCACHE has not been set. The option is being ignored silently
while the user fscache functionality to work. Fix this by raising error when
the CONFIG option is not set.

Reported-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
11 years agocifs: Handle extended attribute name cifs_acl to generate cifs acl blob (try #4)
Shirish Pargaonkar [Sat, 27 Nov 2010 17:37:54 +0000 (11:37 -0600)]
cifs: Handle extended attribute name cifs_acl to generate cifs acl blob (try #4)

Add extended attribute name system.cifs_acl

Get/generate cifs/ntfs acl blob and hand over to the invoker however
it wants to parse/process it under experimental configurable option CIFS_ACL.

Do not get CIFS/NTFS ACL for xattr for attribute system.posix_acl_access

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
11 years agocifs: Misc. cleanup in cifsacl handling [try #4]
Shirish Pargaonkar [Sat, 27 Nov 2010 17:37:26 +0000 (11:37 -0600)]
cifs: Misc. cleanup in cifsacl handling [try #4]

Change the name of function mode_to_acl to mode_to_cifs_acl.

Handle return code in functions mode_to_cifs_acl and
cifs_acl_to_fattr.

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
11 years agoLinux 2.6.37-rc4 v2.6.37-rc4
Linus Torvalds [Tue, 30 Nov 2010 04:42:04 +0000 (20:42 -0800)]
Linux 2.6.37-rc4

11 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Tue, 30 Nov 2010 04:41:39 +0000 (20:41 -0800)]
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: Use call_rcu_sched() for pagetables

11 years agopowerpc: Use call_rcu_sched() for pagetables
Peter Zijlstra [Fri, 26 Nov 2010 14:38:45 +0000 (15:38 +0100)]
powerpc: Use call_rcu_sched() for pagetables

PowerPC relies on IRQ-disable to guard against RCU quiecent states,
use the appropriate RCU call version.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
11 years agoRevert "debug_locks: set oops_in_progress if we will log messages."
Dave Airlie [Mon, 29 Nov 2010 23:15:46 +0000 (09:15 +1000)]
Revert "debug_locks: set oops_in_progress if we will log messages."

This reverts commit e0fdace10e75dac67d906213b780ff1b1a4cc360.

On-list discussion seems to suggest that the robustness fixes for printk
make this unnecessary and DaveM has also agreed in person at Kernel Summit
and on list.

The main problem with this code is once we hit a lockdep splat we always
keep oops_in_progress set, the console layer uses oops_in_progress with KMS
to decide when it should be showing the oops and not showing X, so it causes
problems around suspend/resume time when a userspace resume can cause a console
switch away from X, only if oops_in_progress is set (which is what we want
if an oops actually is in progress, but not because we had a lockdep splat
2 days prior).

Cc: David S Miller <davem@davemloft.net>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Mon, 29 Nov 2010 22:38:06 +0000 (14:38 -0800)]
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:
  tpm: Autodetect itpm devices

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Mon, 29 Nov 2010 22:36:33 +0000 (14:36 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits)
  af_unix: limit recursion level
  pch_gbe driver: The wrong of initializer entry
  pch_gbe dreiver: chang author
  ucc_geth: fix ucc halt problem in half duplex mode
  inet: Fix __inet_inherit_port() to correctly increment bsockets and num_owners
  ehea: Add some info messages and fix an issue
  hso: fix disable_net
  NET: wan/x25_asy, move lapb_unregister to x25_asy_close_tty
  cxgb4vf: fix setting unicast/multicast addresses ...
  net, ppp: Report correct error code if unit allocation failed
  DECnet: don't leak uninitialized stack byte
  au1000_eth: fix invalid address accessing the MAC enable register
  dccp: fix error in updating the GAR
  tcp: restrict net.ipv4.tcp_adv_win_scale (#20312)
  netns: Don't leak others' openreq-s in proc
  Net: ceph: Makefile: Remove unnessary code
  vhost/net: fix rcu check usage
  econet: fix CVE-2010-3848
  econet: fix CVE-2010-3850
  econet: disallow NULL remote addr for sendmsg(), fixes CVE-2010-3849
  ...

11 years agoMerge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 29 Nov 2010 22:36:07 +0000 (14:36 -0800)]
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:
  OMAP2+: PM/serial: hold console semaphore while OMAP UARTs are disabled
  OMAP: UART: don't resume UARTs that are not enabled.

11 years agotpm: Autodetect itpm devices
Matthew Garrett [Thu, 21 Oct 2010 21:42:40 +0000 (17:42 -0400)]
tpm: Autodetect itpm devices

Some Lenovos have TPMs that require a quirk to function correctly. This can
be autodetected by checking whether the device has a _HID of INTC0102. This
is an invalid PNPid, and as such is discarded by the pnp layer - however
it's still present in the ACPI code, so we can pull it out that way. This
means that the quirk won't be automatically applied on non-ACPI systems,
but without ACPI we don't have any way to identify the chip anyway so I
don't think that's a great concern.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Tested-by: Andy Isaacson <adi@hexapodia.org>
Signed-off-by: James Morris <jmorris@namei.org>
11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
Linus Torvalds [Mon, 29 Nov 2010 22:11:08 +0000 (14:11 -0800)]
Merge git://git./linux/kernel/git/mason/btrfs-unstable

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (24 commits)
  Btrfs: don't use migrate page without CONFIG_MIGRATION
  Btrfs: deal with DIO bios that span more than one ordered extent
  Btrfs: setup blank root and fs_info for mount time
  Btrfs: fix fiemap
  Btrfs - fix race between btrfs_get_sb() and umount
  Btrfs: update inode ctime when using links
  Btrfs: make sure new inode size is ok in fallocate
  Btrfs: fix typo in fallocate to make it honor actual size
  Btrfs: avoid NULL pointer deref in try_release_extent_buffer
  Btrfs: make btrfs_add_nondir take parent inode as an argument
  Btrfs: hold i_mutex when calling btrfs_log_dentry_safe
  Btrfs: use dget_parent where we can UPDATED
  Btrfs: fix more ESTALE problems with NFS
  Btrfs: handle NFS lookups properly
  btrfs: make 1-bit signed fileds unsigned
  btrfs: Show device attr correctly for symlinks
  btrfs: Set file size correctly in file clone
  btrfs: Check if dest_offset is block-size aligned before cloning file
  Btrfs: handle the space_cache option properly
  btrfs: Fix early enospc because 'unused' calculated with wrong sign.
  ...

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Linus Torvalds [Mon, 29 Nov 2010 22:10:44 +0000 (14:10 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bp/bp

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC: Fix typos in Documentation/edac.txt
  EDAC, MCE: Fix edac_init_mce_inject error handling
  EDAC: Remove deprecated kbuild goal definitions

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes
Linus Torvalds [Mon, 29 Nov 2010 22:10:22 +0000 (14:10 -0800)]
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: Userland expects quota limit/warn/usage in 512b blocks

11 years agodrm/i915: Clear pfit registers when not used by any outputs
Chris Wilson [Mon, 29 Nov 2010 18:00:23 +0000 (18:00 +0000)]
drm/i915: Clear pfit registers when not used by any outputs

... otherwise the panel-fitter may be left enabled with random settings
and cause unintended filtering (i.e. blurring of native modes on external
panels).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31942
Reported-and-tested-by: Ben Kohler <bkohler@gmail.com>
Tested-by: Ciprian Docan <docan@eden.rutgers.edu>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
11 years agocifs: trivial comment fix for cifs_invalidate_mapping
Suresh Jayaraman [Mon, 29 Nov 2010 17:09:47 +0000 (22:39 +0530)]
cifs: trivial comment fix for cifs_invalidate_mapping

Only the callers check whether the invalid_mapping flag is set and not
cifs_invalidate_mapping().

Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
11 years agoaf_unix: limit recursion level
Eric Dumazet [Thu, 25 Nov 2010 04:11:39 +0000 (04:11 +0000)]
af_unix: limit recursion level

Its easy to eat all kernel memory and trigger NMI watchdog, using an
exploit program that queues unix sockets on top of others.

lkml ref : http://lkml.org/lkml/2010/11/25/8

This mechanism is used in applications, one choice we have is to have a
recursion limit.

Other limits might be needed as well (if we queue other types of files),
since the passfd mechanism is currently limited by socket receive queue
sizes only.

Add a recursion_level to unix socket, allowing up to 4 levels.

Each time we send an unix socket through sendfd mechanism, we copy its
recursion level (plus one) to receiver. This recursion level is cleared
when socket receive queue is emptied.

Reported-by: Марк Коренберг <socketpair@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agopch_gbe driver: The wrong of initializer entry
Toshiharu Okada [Mon, 29 Nov 2010 06:18:07 +0000 (06:18 +0000)]
pch_gbe driver: The wrong of initializer entry

The wrong of initializer entry was modified.

Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Reported-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agopch_gbe dreiver: chang author
Toshiharu Okada [Sun, 21 Nov 2010 19:58:37 +0000 (19:58 +0000)]
pch_gbe dreiver: chang author

This driver's AUTHOR was changed to "Toshiharu Okada" from "Masayuki Ohtake".
I update the Kconfig, renamed "Topcliff" to "EG20T".

Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoBtrfs: don't use migrate page without CONFIG_MIGRATION
Chris Mason [Mon, 29 Nov 2010 14:49:11 +0000 (09:49 -0500)]
Btrfs: don't use migrate page without CONFIG_MIGRATION

Fixes compile error

Signed-off-by: Chris Mason <chris.mason@oracle.com>
11 years agodrm: record monitor status in output_poll_execute
Keith Packard [Fri, 26 Nov 2010 18:45:59 +0000 (10:45 -0800)]
drm: record monitor status in output_poll_execute

In order to correctly report monitor connected status changes, the
previous monitor status must be recorded in the connector->status
value instead of being discarded.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm: Set connector DPMS status to ON in drm_crtc_helper_set_config
Keith Packard [Fri, 26 Nov 2010 18:45:58 +0000 (10:45 -0800)]
drm: Set connector DPMS status to ON in drm_crtc_helper_set_config

When setting a new crtc configuration, force the DPMS state of all
connectors to ON. Otherwise, they'll be left at OFF and a future mode set
that disables the specified connector will not turn the connector off.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agoucc_geth: fix ucc halt problem in half duplex mode
Yang Li [Thu, 25 Nov 2010 23:29:58 +0000 (23:29 +0000)]
ucc_geth: fix ucc halt problem in half duplex mode

In commit 58933c64(ucc_geth: Fix the wrong the Rx/Tx FIFO size),
the UCC_GETH_UTFTT_INIT is set to 512 based on the recommendation
of the QE Reference Manual.  But that will sometimes cause tx halt
while working in half duplex mode.

According to errata draft QE_GENERAL-A003(High Tx Virtual FIFO
threshold size can cause UCC to halt), setting UTFTT less than
[(UTFS x (M - 8)/M) - 128] will prevent this from happening
(M is the minimum buffer size).

The patch changes UTFTT back to 256.

Signed-off-by: Li Yang <leoli@freescale.com>
Cc: Jean-Denis Boyer <jdboyer@media5corp.com>
Cc: Andreas Schmitz <Andreas.Schmitz@riedel.net>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoinet: Fix __inet_inherit_port() to correctly increment bsockets and num_owners
Nagendra Tomar [Fri, 26 Nov 2010 14:26:27 +0000 (14:26 +0000)]
inet: Fix __inet_inherit_port() to correctly increment bsockets and num_owners

inet sockets corresponding to passive connections are added to the bind hash
using ___inet_inherit_port(). These sockets are later removed from the bind
hash using __inet_put_port(). These two functions are not exactly symmetrical.
__inet_put_port() decrements hashinfo->bsockets and tb->num_owners, whereas
___inet_inherit_port() does not increment them. This results in both of these
going to -ve values.

This patch fixes this by calling inet_bind_hash() from ___inet_inherit_port(),
which does the right thing.

'bsockets' and 'num_owners' were introduced by commit a9d8f9110d7e953c
(inet: Allowing more than 64k connections and heavily optimize bind(0))

Signed-off-by: Nagendra Singh Tomar <tomer_iisc@yahoo.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoehea: Add some info messages and fix an issue
Breno Leitao [Fri, 26 Nov 2010 07:26:27 +0000 (07:26 +0000)]
ehea: Add some info messages and fix an issue

This patch adds some debug information about ehea not being able to
allocate enough spaces. Also it correctly updates the amount of available
skb.

Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoBtrfs: deal with DIO bios that span more than one ordered extent
Chris Mason [Mon, 29 Nov 2010 00:56:33 +0000 (19:56 -0500)]
Btrfs: deal with DIO bios that span more than one ordered extent

The new DIO bio splitting code has problems when the bio
spans more than one ordered extent.  This will happen as the
generic DIO code merges our get_blocks calls together into
a bigger single bio.

This fixes things by walking forward in the ordered extent
code finding all the overlapping ordered extents and completing them
all at once.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
11 years agoUn-inline get_pipe_info() helper function
Linus Torvalds [Mon, 29 Nov 2010 00:27:19 +0000 (16:27 -0800)]
Un-inline get_pipe_info() helper function

This avoids some include-file hell, and the function isn't really
important enough to be inlined anyway.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoExport 'get_pipe_info()' to other users
Linus Torvalds [Sun, 28 Nov 2010 22:09:57 +0000 (14:09 -0800)]
Export 'get_pipe_info()' to other users

And in particular, use it in 'pipe_fcntl()'.

The other pipe functions do not need to use the 'careful' version, since
they are only ever called for things that are already known to be pipes.

The normal read/write/ioctl functions are called through the file
operations structures, so if a file isn't a pipe, they'd never get
called.  But pipe_fcntl() is special, and called directly from the
generic fcntl code, and needs to use the same careful function that the
splice code is using.

Cc: Jens Axboe <jaxboe@fusionio.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoRename 'pipe_info()' to 'get_pipe_info()'
Linus Torvalds [Sun, 28 Nov 2010 21:56:09 +0000 (13:56 -0800)]
Rename 'pipe_info()' to 'get_pipe_info()'

.. and change it to take the 'file' pointer instead of an inode, since
that's what all users want anyway.

The renaming is preparatory to exporting it to other users.  The old
'pipe_info()' name was too generic and is already used elsewhere, so
before making the function public we need to use a more specific name.

Cc: Jens Axboe <jaxboe@fusionio.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 28 Nov 2010 20:25:02 +0000 (12:25 -0800)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf: Fix the software context switch counter
  perf, x86: Fixup Kconfig deps
  x86, perf, nmi: Disable perf if counters are not accessible
  perf: Fix inherit vs. context rotation bug

11 years agoMerge branch 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1...
Linus Torvalds [Sun, 28 Nov 2010 20:24:20 +0000 (12:24 -0800)]
Merge branch 'fwnet' of git://git./linux/kernel/git/ieee1394/linux1394-2.6

* 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: net: throttle TX queue before running out of tlabels
  firewire: net: replace lists by counters
  firewire: net: fix memory leaks
  firewire: net: count stats.tx_packets and stats.tx_bytes

11 years agohso: fix disable_net
Filip Aben [Thu, 25 Nov 2010 03:40:50 +0000 (03:40 +0000)]
hso: fix disable_net

The HSO driver incorrectly creates a serial device instead of a net
device when disable_net is set. It shouldn't create anything for the
network interface.

Signed-off-by: Filip Aben <f.aben@option.com>
Reported-by: Piotr Isajew <pki@ex.com.pl>
Reported-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoNET: wan/x25_asy, move lapb_unregister to x25_asy_close_tty
Jiri Slaby [Wed, 24 Nov 2010 13:54:54 +0000 (13:54 +0000)]
NET: wan/x25_asy, move lapb_unregister to x25_asy_close_tty

We register lapb when tty is created, but unregister it only when the
device is UP. So move the lapb_unregister to x25_asy_close_tty after
the device is down.

The old behaviour causes ldisc switching to fail each second attempt,
because we noted for us that the device is unused, so we use it the
second time, but labp layer still have it registered, so it fails
obviously.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Sergey Lapin <slapin@ossfans.org>
Cc: Andrew Hendry <andrew.hendry@gmail.com>
Tested-by: Sergey Lapin <slapin@ossfans.org>
Tested-by: Mikhail Ulyanov <ulyanov.mikhail@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocxgb4vf: fix setting unicast/multicast addresses ...
Casey Leedom [Wed, 24 Nov 2010 12:23:57 +0000 (12:23 +0000)]
cxgb4vf: fix setting unicast/multicast addresses ...

We were truncating the number of unicast and multicast MAC addresses
supported.  Additionally, we were incorrectly computing the MAC Address
hash (a "1 << N" where we needed a "1ULL << N").

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet, ppp: Report correct error code if unit allocation failed
Cyrill Gorcunov [Tue, 23 Nov 2010 11:43:44 +0000 (11:43 +0000)]
net, ppp: Report correct error code if unit allocation failed

Allocating unit from ird might return several error codes
not only -EAGAIN, so it should not be changed and returned
precisely. Same time unit release procedure should be invoked
only if device is unregistering.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
CC: Paul Mackerras <paulus@samba.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoDECnet: don't leak uninitialized stack byte
Dan Rosenberg [Tue, 23 Nov 2010 11:02:13 +0000 (11:02 +0000)]
DECnet: don't leak uninitialized stack byte

A single uninitialized padding byte is leaked to userspace.

Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
CC: stable <stable@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoau1000_eth: fix invalid address accessing the MAC enable register
Wolfgang Grandegger [Tue, 23 Nov 2010 06:40:25 +0000 (06:40 +0000)]
au1000_eth: fix invalid address accessing the MAC enable register

"aup->enable" holds already the address pointing to the MAC enable
register. The bug was introduced by commit d0e7cb:

"au1000-eth: remove volatiles, switch to I/O accessors".

CC: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Wolfgang Grandegger <wg@denx.de>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agodccp: fix error in updating the GAR
Gerrit Renker [Tue, 23 Nov 2010 02:36:56 +0000 (02:36 +0000)]
dccp: fix error in updating the GAR

This fixes a bug in updating the Greatest Acknowledgment number Received (GAR):
the current implementation does not track the greatest received value -
lower values in the range AWL..AWH (RFC 4340, 7.5.1) erase higher ones.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'vhost-net' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
David S. Miller [Sun, 28 Nov 2010 19:27:44 +0000 (11:27 -0800)]
Merge branch 'vhost-net' of git://git./linux/kernel/git/mst/vhost

11 years agotcp: restrict net.ipv4.tcp_adv_win_scale (#20312)
Alexey Dobriyan [Mon, 22 Nov 2010 12:54:21 +0000 (12:54 +0000)]
tcp: restrict net.ipv4.tcp_adv_win_scale (#20312)

tcp_win_from_space() does the following:

      if (sysctl_tcp_adv_win_scale <= 0)
              return space >> (-sysctl_tcp_adv_win_scale);
      else
              return space - (space >> sysctl_tcp_adv_win_scale);

"space" is int.

As per C99 6.5.7 (3) shifting int for 32 or more bits is
undefined behaviour.

Indeed, if sysctl_tcp_adv_win_scale is exactly 32,
space >> 32 equals space and function returns 0.

Which means we busyloop in tcp_fixup_rcvbuf().

Restrict net.ipv4.tcp_adv_win_scale to [-31, 31].

Fix https://bugzilla.kernel.org/show_bug.cgi?id=20312

Steps to reproduce:

      echo 32 >/proc/sys/net/ipv4/tcp_adv_win_scale
      wget www.kernel.org
      [softlockup]

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agodrm/i915: fix regression due to ba3d8d749b01548b9
Daniel Vetter [Sat, 27 Nov 2010 21:30:41 +0000 (22:30 +0100)]
drm/i915: fix regression due to ba3d8d749b01548b9

We don't track gpu flush request in any special way. So even with
obj->write_domain == 0, a gpu flush might be outstanding but no
yet executed. Even worse, the latest request might use the object
only for reading. So and unconditional call to object_wait_rendering
is needed for !pipelined.

Hence revert that patch fully and untangle the flushing from the
synchronization again.

Reported-by: Keith Packard <keithp@keithp.com>
Tested-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
11 years agonetns: Don't leak others' openreq-s in proc
Pavel Emelyanov [Mon, 22 Nov 2010 03:26:12 +0000 (03:26 +0000)]
netns: Don't leak others' openreq-s in proc

The /proc/net/tcp leaks openreq sockets from other namespaces.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoNet: ceph: Makefile: Remove unnessary code
Tracey Dent [Sun, 21 Nov 2010 15:23:50 +0000 (15:23 +0000)]
Net: ceph: Makefile: Remove unnessary code

Remove the if and else conditional because the code is in mainline and there
is no need in it being there.

Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Sat, 27 Nov 2010 20:42:15 +0000 (12:42 -0800)]
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: (30 commits)
  ALSA: hda - Use ALC_INIT_DEFAULT for really default initialization
  ASoC: Fix resource reclaim for osk5912
  ASoC: tlv320aic3x - fix variable may be used uninitialized warning
  ASoC: davinci-vcif - fix a memory leak
  ASoC: phycore-ac97: fix resource leak
  ASoC: imx-ssi: fix resource leak
  ASoC: simone: fix resource leak in simone_init error path
  ASoC: sam9g20_wm8731: fix resource leak in at91sam9g20ek_init error path
  ASoC: snd-soc-afeb9260: remove unneeded platform_device_del in error path
  ASoC: pcm030-audio-fabric: fix resource leak in pcm030_fabric_init error path
  ASoC: efika-audio-fabric: fix resource leak in efika_fabric_init error path
  ASoC: Call snd_soc_unregister_dais instead of snd_soc_unregister_dai in sh4_soc_dai_remove
  ASoC: fix SND_PXA2XX_LIB Kconfig warning
  ALSA: hda - Fix ALC660-VD/ALC861-VD capture/playback mixers
  ALSA: HDA: Add an extra DAC for Realtek ALC887-VD
  ASoC: nuc900-ac97: fix a memory leak
  ASoC: Return proper error for omap3pandora_soc_init
  ASoC: wm8961 - clear WM8961_MCLKDIV bit for freq <= 16500000
  ASoC: wm8961 - clear WM8961_DACSLOPE bit for normal mode
  ALSA: hda - Fix Acer 7730G support
  ...

11 years agoBtrfs: setup blank root and fs_info for mount time
Josef Bacik [Fri, 19 Nov 2010 19:59:15 +0000 (14:59 -0500)]
Btrfs: setup blank root and fs_info for mount time

There is a problem with how we use sget, it searches through the list of supers
attached to the fs_type looking for a super with the same fs_devices as what
we're trying to mount.  This depends on sb->s_fs_info being filled, but we don't
fill that in until we get to btrfs_fill_super, so we could hit supers on the
fs_type super list that have a null s_fs_info.  In order to fix that we need to
go ahead and setup a blank root with a blank fs_info to hold fs_devices, that
way our test will work out right and then we can set s_fs_info in
btrfs_set_super, and then open_ctree will simply use our pre-allocated root and
fs_info when setting everything up.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
11 years agoBtrfs: fix fiemap
Josef Bacik [Tue, 23 Nov 2010 19:36:57 +0000 (19:36 +0000)]
Btrfs: fix fiemap

There are two big problems currently with FIEMAP

1) We return extents for holes.  This isn't supposed to happen, we just don't
return extents for holes and then userspace interprets the lack of an extent as
a hole.

2) We sometimes don't set FIEMAP_EXTENT_LAST properly.  This is because we wait
to see a EXTENT_FLAG_VACANCY flag on the em, but this won't happen if say we ask
fiemap to map up to the last extent in a file, and there is nothing but holes up
to the i_size.  To fix this we need to lookup the last extent in this file and
save the logical offset, so if we happen to try and map that extent we can be
sure to set FIEMAP_EXTENT_LAST.

With this patch we now pass xfstest 225, which we never have before.

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
11 years agoBtrfs - fix race between btrfs_get_sb() and umount
Ian Kent [Mon, 22 Nov 2010 02:21:38 +0000 (02:21 +0000)]
Btrfs - fix race between btrfs_get_sb() and umount

When mounting a btrfs file system btrfs_test_super() may attempt to
use sb->s_fs_info, the btrfs root, of a super block that is going away
and that has had the btrfs root set to NULL in its ->put_super(). But
if the super block is going away it cannot be an existing super block
so we can return false in this case.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
11 years agoBtrfs: update inode ctime when using links
Josef Bacik [Tue, 23 Nov 2010 19:50:59 +0000 (19:50 +0000)]
Btrfs: update inode ctime when using links

Currently we fail xfstest 236 because we're not updating the inode ctime on
link.  This is a simple fix, and makes it so we pass 236 now.

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
11 years agoBtrfs: make sure new inode size is ok in fallocate
Josef Bacik [Mon, 22 Nov 2010 18:55:39 +0000 (18:55 +0000)]
Btrfs: make sure new inode size is ok in fallocate

We have been failing xfstest 228 forever, because we don't check to make sure
the new inode size is acceptable as far as RLIMIT is concerned.  Just check to
make sure it's ok to create a inode with this new size and error out if not.
With this patch we now pass 228.

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
11 years agoBtrfs: fix typo in fallocate to make it honor actual size
Josef Bacik [Mon, 22 Nov 2010 18:50:32 +0000 (18:50 +0000)]
Btrfs: fix typo in fallocate to make it honor actual size

There is a typo in __btrfs_prealloc_file_range() where we set the i_size to
actual_len/cur_offset, and then just set it to cur_offset again, and do the same
with btrfs_ordered_update_i_size().  This fixes it back to keeping i_size in a
local variable and then updating i_size properly.  Tested this with

xfs_io -F -f -c "falloc 0 1" -c "pwrite 0 1" foo

stat'ing foo gives us a size of 1 instead of 4096 like it was.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
11 years agoMerge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
Linus Torvalds [Fri, 26 Nov 2010 22:30:30 +0000 (07:30 +0900)]
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: Ensure we return the dirent->d_type when it is known
  NFS: Correct the array bound calculation in nfs_readdir_add_to_array
  NFS: Don't ignore errors from nfs_do_filldir()
  NFS: Fix the error handling in "uncached_readdir()"
  NFS: Fix a page leak in uncached_readdir()
  NFS: Fix a page leak in nfs_do_filldir()
  NFS: Assume eof if the server returns no readdir records
  NFS: Buffer overflow in ->decode_dirent() should not be fatal
  Pure nfs client performance using odirect.
  SUNRPC: Fix an infinite loop in call_refresh/call_refreshresult

11 years agoMerge branch 'linux-next' of git://git.infradead.org/ubi-2.6
Linus Torvalds [Fri, 26 Nov 2010 22:30:08 +0000 (07:30 +0900)]
Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6

* 'linux-next' of git://git.infradead.org/ubi-2.6:
  UBI: release locks in check_corruption

11 years agoMerge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 26 Nov 2010 22:29:20 +0000 (07:29 +0900)]
Merge branch 'timers-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  posix-cpu-timers: Rcu_read_lock/unlock protect find_task_by_vpid call

11 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 26 Nov 2010 22:28:47 +0000 (07:28 +0900)]
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:
  dmar, x86: Use function stubs when CONFIG_INTR_REMAP is disabled
  x86-64: Fix and clean up AMD Fam10 MMCONF enabling
  x86: UV: Address interrupt/IO port operation conflict
  x86: Use online node real index in calulate_tbl_offset()
  x86, asm: Fix binutils 2.15 build failure

11 years agoMerge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 26 Nov 2010 22:28:17 +0000 (07:28 +0900)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf symbols: Remove incorrect open-coded container_of()
  perf record: Handle restrictive permissions in /proc/{kallsyms,modules}
  x86/kprobes: Prevent kprobes to probe on save_args()
  irq_work: Drop cmpxchg() result
  perf: Fix owner-list vs exit
  x86, hw_nmi: Move backtrace_mask declaration under ARCH_HAS_NMI_WATCHDOG
  tracing: Fix recursive user stack trace
  perf,hw_breakpoint: Initialize hardware api earlier
  x86: Ignore trap bits on single step exceptions
  tracing: Force arch_local_irq_* notrace for paravirt
  tracing: Fix module use of trace_bprintk()

11 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 26 Nov 2010 22:27:54 +0000 (07:27 +0900)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: Fix idle balancing
  sched: Fix volanomark performance regression

11 years agoMerge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Fri, 26 Nov 2010 22:26:48 +0000 (07:26 +0900)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] qdio: free indicator after reset is finished
  [S390] nmi: fix clock comparator revalidation

11 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Fri, 26 Nov 2010 22:17:50 +0000 (07:17 +0900)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  cciss: fix build for PROC_FS disabled
  block: fix amiga and atari floppy driver compile warning
  blk-throttle: Fix calculation of max number of WRITES to be dispatched
  ioprio: grab rcu_read_lock in sys_ioprio_{set,get}()
  xen/blkfront: cope with backend that fail empty BLKIF_OP_WRITE_BARRIER requests
  xen/blkfront: Implement FUA with BLKIF_OP_WRITE_BARRIER
  xen/blkfront: change blk_shadow.request to proper pointer
  xen/blkfront: map REQ_FLUSH into a full barrier

11 years agoMerge branch 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 26 Nov 2010 22:17:16 +0000 (07:17 +0900)]
Merge branch 'rmobile-fixes-for-linus' of git://git./linux/kernel/git/lethal/sh-2.6

* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  ARM: mach-shmobile: clock-sh7372: remove bogus pllc2 clock toggling.
  ARM: mach-shmobile: clock-sh7372: remove unnecessary fsi clocks
  ARM: mach-shmobile: clock-sh7372: modify error code
  ARM: mach-shmobile: ap4evb: FSI clock use proper process for ak4642
  ARM: mach-shmobile: ap4evb: FSI clock use proper process for HDMI
  ARM: mach-shmobile: clock-sh7372: remove fsidiv bogus disable
  ARM: mach-shmobile: sh7372 USB0/IIC1 MSTP fix