10 years agoLinux 2.6.34-rc5
Linus Torvalds [Mon, 19 Apr 2010 23:29:56 +0000]
Linux 2.6.34-rc5

10 years agormap: add exclusively owned pages to the newest anon_vma
Rik van Riel [Wed, 14 Apr 2010 21:59:28 +0000]
rmap: add exclusively owned pages to the newest anon_vma

The recent anon_vma fixes cause many anonymous pages to end up
in the parent process anon_vma, even when the page is exclusively
owned by the current process.

Adding exclusively owned anonymous pages to the top anon_vma
reduces rmap scanning overhead, especially in workloads with
forking servers.

This patch adds a parameter to __page_set_anon_rmap that can
be used to indicate whether or not the added page is exclusively
owned by the current process.

Pages added through page_add_new_anon_rmap are exclusively
owned by the current process, and can be added to the top
anon_vma.

Pages added through page_add_anon_rmap can be either shared
or exclusively owned, so we do the conservative thing and
add it to the oldest anon_vma.

A next step would be to add the exclusive parameter to
page_add_anon_rmap, to be used from functions where we do
know for sure whether a page is exclusively owned.

Signed-off-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Lightly-tested-by: Borislav Petkov <bp@alien8.de>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
[ Edited to look nicer  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs...
Linus Torvalds [Mon, 19 Apr 2010 21:20:32 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/ecryptfs/ecryptfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
  eCryptfs: Turn lower lookup error messages into debug messages
  eCryptfs: Copy lower directory inode times and size on link
  ecryptfs: fix use with tmpfs by removing d_drop from ecryptfs_destroy_inode
  ecryptfs: fix error code for missing xattrs in lower fs
  eCryptfs: Decrypt symlink target for stat size
  eCryptfs: Strip metadata in xattr flag in encrypted view
  eCryptfs: Clear buffer before reading in metadata xattr
  eCryptfs: Rename ecryptfs_crypt_stat.num_header_bytes_at_front
  eCryptfs: Fix metadata in xattr feature regression

10 years agoeCryptfs: Turn lower lookup error messages into debug messages
Tyler Hicks [Thu, 25 Mar 2010 16:16:56 +0000]
eCryptfs: Turn lower lookup error messages into debug messages

Vaugue warnings about ENAMETOOLONG errors when looking up an encrypted
file name have caused many users to become concerned about their data.
Since this is a rather harmless condition, I'm moving this warning to
only be printed when the ecryptfs_verbosity module param is 1.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>

10 years agoeCryptfs: Copy lower directory inode times and size on link
Tyler Hicks [Tue, 23 Mar 2010 23:09:02 +0000]
eCryptfs: Copy lower directory inode times and size on link

The timestamps and size of a lower inode involved in a link() call was
being copied to the upper parent inode.  Instead, we should be
copying lower parent inode's timestamps and size to the upper parent
inode.  I discovered this bug using the POSIX test suite at Tuxera.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>

10 years agoecryptfs: fix use with tmpfs by removing d_drop from ecryptfs_destroy_inode
Jeff Mahoney [Fri, 19 Mar 2010 19:35:46 +0000]
ecryptfs: fix use with tmpfs by removing d_drop from ecryptfs_destroy_inode

Since tmpfs has no persistent storage, it pins all its dentries in memory
so they have d_count=1 when other file systems would have d_count=0.
->lookup is only used to create new dentries. If the caller doesn't
instantiate it, it's freed immediately at dput(). ->readdir reads
directly from the dcache and depends on the dentries being hashed.

When an ecryptfs mount is mounted, it associates the lower file and dentry
with the ecryptfs files as they're accessed. When it's umounted and
destroys all the in-memory ecryptfs inodes, it fput's the lower_files and
d_drop's the lower_dentries. Commit 4981e081 added this and a d_delete in
2008 and several months later commit caeeeecf removed the d_delete. I
believe the d_drop() needs to be removed as well.

The d_drop effectively hides any file that has been accessed via ecryptfs
from the underlying tmpfs since it depends on it being hashed for it to
be accessible. I've removed the d_drop on my development node and see no
ill effects with basic testing on both tmpfs and persistent storage.

As a side effect, after ecryptfs d_drops the dentries on tmpfs, tmpfs
BUGs on umount. This is due to the dentries being unhashed.
tmpfs->kill_sb is kill_litter_super which calls d_genocide to drop
the reference pinning the dentry. It skips unhashed and negative dentries,
but shrink_dcache_for_umount_subtree doesn't. Since those dentries
still have an elevated d_count, we get a BUG().

This patch removes the d_drop call and fixes both issues.

This issue was reported at:
https://bugzilla.novell.com/show_bug.cgi?id=567887

Reported-by:  Árpád Bíró <biroa@demasz.hu>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Cc: Dustin Kirkland <kirkland@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>

10 years agoecryptfs: fix error code for missing xattrs in lower fs
Christian Pulvermacher [Tue, 23 Mar 2010 16:51:38 +0000]
ecryptfs: fix error code for missing xattrs in lower fs

If the lower file system driver has extended attributes disabled,
ecryptfs' own access functions return -ENOSYS instead of -EOPNOTSUPP.
This breaks execution of programs in the ecryptfs mount, since the
kernel expects the latter error when checking for security
capabilities in xattrs.

Signed-off-by: Christian Pulvermacher <pulvermacher@gmx.de>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>

10 years agoeCryptfs: Decrypt symlink target for stat size
Tyler Hicks [Mon, 22 Mar 2010 05:41:35 +0000]
eCryptfs: Decrypt symlink target for stat size

Create a getattr handler for eCryptfs symlinks that is capable of
reading the lower target and decrypting its path.  Prior to this patch,
a stat's st_size field would represent the strlen of the encrypted path,
while readlink() would return the strlen of the decrypted path.  This
could lead to confusion in some userspace applications, since the two
values should be equal.

https://bugs.launchpad.net/bugs/524919

Reported-by: Loïc Minier <loic.minier@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>

10 years agoFix ISDN/Gigaset build failure
Linus Torvalds [Mon, 19 Apr 2010 18:53:17 +0000]
Fix ISDN/Gigaset build failure

Commit b91ecb00 ("gigaset: include cleanup cleanup") removed an implicit
sched.h inclusion that came in via slab.h, and caused various compile
problems as a result.

This should fix it.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 19 Apr 2010 15:35:47 +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:
  rcu: Make RCU lockdep check the lockdep_recursion variable
  rcu: Update docs for rcu_access_pointer and rcu_dereference_protected
  rcu: Better explain the condition parameter of rcu_dereference_check()
  rcu: Add rcu_access_pointer and rcu_dereference_protected

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Mon, 19 Apr 2010 14:27:45 +0000]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  gigaset: include cleanup cleanup
  packet : remove init_net restriction
  WAN: flush tx_queue in hdlc_ppp to prevent panic on rmmod hw_driver.
  ip: Fix ip_dev_loopback_xmit()
  net: dev_pick_tx() fix
  fib: suppress lockdep-RCU false positive in FIB trie.
  tun: orphan an skb on tx
  forcedeth: fix tx limit2 flag check
  iwlwifi: work around bogus active chains detection

10 years agoMerge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Mon, 19 Apr 2010 14:27:06 +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: add FireMV 2400 PCI ID.
  drm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES and VAP_INDEX_OFFSET
  drivers/gpu/radeon: Add MSPOS regs to safe list.
  drm/radeon/kms: disable the tv encoder when tv/cv is not in use
  drm/radeon/kms: adjust pll settings for tv
  drm/radeon/kms: fix tv dac conflict resolver
  drm/radeon/kms/evergreen: don't enable hdmi audio stuff
  drm/radeon/kms/atom: fix dual-link DVI on DCE3.2/4.0
  drm/radeon/kms: fix rs600 tlb flush
  drm/radeon/kms: print GPU family and device id when loading
  drm/radeon/kms: fix calculation of mipmapped 3D texture sizes
  drm/radeon/kms: only change mode when coherent value changes.
  drm/radeon/kms: more atom parser fixes (v2)

10 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Mon, 19 Apr 2010 14:26:21 +0000]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 5974/1: arm/mach-at91 Makefile: remove two blanks.
  ARM: 6052/1: kdump: make kexec work in interrupt context
  ARM: 6051/1: VFP: preserve the HW context when calling signal handlers
  ARM: 6050/1: VFP: fix the SMP versions of vfp_{sync,flush}_hwstate
  ARM: 6007/1: fix highmem with VIPT cache and DMA
  ARM: 5975/1: AT91 slow-clock suspend: don't wait when turning PLLs off

10 years agodrm/radeon/kms: add FireMV 2400 PCI ID.
Dave Airlie [Mon, 19 Apr 2010 07:54:31 +0000]
drm/radeon/kms: add FireMV 2400 PCI ID.

This is an M24/X600 chip.

From RH# 581927

cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agorcu: Make RCU lockdep check the lockdep_recursion variable
Paul E. McKenney [Thu, 15 Apr 2010 19:50:39 +0000]
rcu: Make RCU lockdep check the lockdep_recursion variable

The lockdep facility temporarily disables lockdep checking by
incrementing the current->lockdep_recursion variable.  Such
disabling happens in NMIs and in other situations where lockdep
might expect to recurse on itself.

This patch therefore checks current->lockdep_recursion, disabling RCU
lockdep splats when this variable is non-zero.  In addition, this patch
removes the "likely()", as suggested by Lai Jiangshan.

Reported-by: Frederic Weisbecker <fweisbec@gmail.com>
Reported-by: David Miller <davem@davemloft.net>
Tested-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
Cc: eric.dumazet@gmail.com
LKML-Reference: <20100415195039.GA22623@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agodrm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES and VAP_INDEX_OFFSET
Marek Olšák [Sun, 21 Feb 2010 20:24:15 +0000]
drm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES and VAP_INDEX_OFFSET

[airlied: fix V_A_N_V to not be safe and fix check to make sure only r500
 - bump userspace version]

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrivers/gpu/radeon: Add MSPOS regs to safe list.
Corbin Simpson [Sun, 11 Apr 2010 19:34:00 +0000]
drivers/gpu/radeon: Add MSPOS regs to safe list.

Permits MSAA and D3D-style rasterization.

[airlied: add rs600]

Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/radeon/kms: disable the tv encoder when tv/cv is not in use
Alex Deucher [Tue, 13 Apr 2010 15:21:59 +0000]
drm/radeon/kms: disable the tv encoder when tv/cv is not in use

Switching between TV and VGA caused VGA to break on some systems
since the TV encoder was left enabled when VGA was used.

fixes fdo bug 25520.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/radeon/kms: adjust pll settings for tv
Alex Deucher [Fri, 9 Apr 2010 19:31:56 +0000]
drm/radeon/kms: adjust pll settings for tv

May fix fdo bug 26582.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/radeon/kms: fix tv dac conflict resolver
Alex Deucher [Thu, 15 Apr 2010 17:31:12 +0000]
drm/radeon/kms: fix tv dac conflict resolver

On systems with the tv dac shared between DVI and TV,
we can only use the dac for one of the connectors.
However, when using a digital monitor on the DVI port,
you can use the dac for the TV connector just fine.
Check the use_digital status when resolving the conflict.

Fixes fdo bug 27649, possibly others.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/radeon/kms/evergreen: don't enable hdmi audio stuff
Alex Deucher [Fri, 16 Apr 2010 15:35:30 +0000]
drm/radeon/kms/evergreen: don't enable hdmi audio stuff

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/radeon/kms/atom: fix dual-link DVI on DCE3.2/4.0
Alex Deucher [Thu, 15 Apr 2010 20:54:38 +0000]
drm/radeon/kms/atom: fix dual-link DVI on DCE3.2/4.0

Got broken during the evergreen merge.
Fixes fdo bug 27001.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/radeon/kms: fix rs600 tlb flush
Jerome Glisse [Fri, 16 Apr 2010 16:46:35 +0000]
drm/radeon/kms: fix rs600 tlb flush

Typo in in flush leaded to no flush of the RS600 tlb which
ultimately leaded to massive system ram corruption, with
this patch everythings seems to work properly.

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

10 years agodrm/radeon/kms: print GPU family and device id when loading
Jerome Glisse [Mon, 12 Apr 2010 20:21:53 +0000]
drm/radeon/kms: print GPU family and device id when loading

This will help figuring out GPU when looking at bugs log.

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

10 years agogigaset: include cleanup cleanup
Tilman Schmidt [Fri, 16 Apr 2010 12:08:58 +0000]
gigaset: include cleanup cleanup

Commit 5a0e3ad causes slab.h to be included twice in many of the
Gigaset driver's source files, first via the common include file
gigaset.h and then a second time directly. Drop the spares, and
use the opportunity to clean up a few more similar cases.

Impact: cleanup, no functional change
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
CC: Tejun Heo <tj@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

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

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

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

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

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

10 years agopacket : remove init_net restriction
Daniel Lezcano [Wed, 14 Apr 2010 23:11:14 +0000]
packet : remove init_net restriction

The af_packet protocol is used by Perl to do ioctls as reported by
Stephane Riviere:

"Net::RawIP relies on SIOCGIFADDR et SIOCGIFHWADDR to get the IP and MAC
addresses of the network interface."

But in a new network namespace these ioctl fail because it is disabled for
a namespace different from the init_net_ns.

These two lines should not be there as af_inet and af_packet are
namespace aware since a long time now. I suppose we forget to remove these
lines because we sent the af_packet first, before af_inet was supported.

Signed-off-by: Daniel Lezcano <daniel.lezcano@free.fr>
Reported-by: Stephane Riviere <stephane.riviere@regis-dgac.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoWAN: flush tx_queue in hdlc_ppp to prevent panic on rmmod hw_driver.
Krzysztof Halasa [Wed, 14 Apr 2010 14:09:52 +0000]
WAN: flush tx_queue in hdlc_ppp to prevent panic on rmmod hw_driver.

tx_queue is used as a temporary queue when not allowed to queue skb
directly to the hw device driver (which may sleep). Most paths flush
it before returning, but ppp_start() currently cannot. Make sure we
don't leave skbs pointing to a non-existent device.

Thanks to Michael Barkowski for reporting this problem.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

10 years agoACPI: EC: Limit burst to 64 bits
Alexey Starikovskiy [Fri, 16 Apr 2010 19:36:40 +0000]
ACPI: EC: Limit burst to 64 bits

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

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

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

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

10 years agoxfs: don't warn on EAGAIN in inode reclaim
Dave Chinner [Tue, 13 Apr 2010 05:06:45 +0000]
xfs: don't warn on EAGAIN in inode reclaim

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

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>

10 years agoxfs: ensure that sync updates the log tail correctly
Dave Chinner [Tue, 13 Apr 2010 05:06:44 +0000]
xfs: ensure that sync updates the log tail correctly

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

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

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

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

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

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
Linus Torvalds [Fri, 16 Apr 2010 14:26:31 +0000]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog

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

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

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

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

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

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

10 years ago[WATCHDOG] max63xx: be careful when disabling the watchdog
Marc Zyngier [Fri, 9 Apr 2010 16:43:33 +0000]
[WATCHDOG] max63xx: be careful when disabling the watchdog

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

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

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

10 years ago[WATCHDOG] fixed book E watchdog period register mask.
Luuk Paulussen [Thu, 15 Apr 2010 03:59:10 +0000]
[WATCHDOG] fixed book E watchdog period register mask.

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

Signed-off-by: Luuk Paulussen <luuk.paulussen@alliedtelesis.co.nz>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

10 years ago[WATCHDOG] omap4: Fix WDT Kconfig
Santosh Shilimkar [Wed, 7 Apr 2010 07:47:22 +0000]
[WATCHDOG] omap4: Fix WDT Kconfig

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

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

10 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Fri, 16 Apr 2010 08:03:48 +0000]
Merge branch 'fix/hda' into for-linus

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

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

10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
David S. Miller [Thu, 15 Apr 2010 21:28:46 +0000]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6

10 years agoip: Fix ip_dev_loopback_xmit()
Eric Dumazet [Thu, 15 Apr 2010 09:13:03 +0000]
ip: Fix ip_dev_loopback_xmit()

Eric Paris got following trace with a linux-next kernel

[   14.203970] BUG: using smp_processor_id() in preemptible [00000000]
code: avahi-daemon/2093
[   14.204025] caller is netif_rx+0xfa/0x110
[   14.204035] Call Trace:
[   14.204064]  [<ffffffff81278fe5>] debug_smp_processor_id+0x105/0x110
[   14.204070]  [<ffffffff8142163a>] netif_rx+0xfa/0x110
[   14.204090]  [<ffffffff8145b631>] ip_dev_loopback_xmit+0x71/0xa0
[   14.204095]  [<ffffffff8145b892>] ip_mc_output+0x192/0x2c0
[   14.204099]  [<ffffffff8145d610>] ip_local_out+0x20/0x30
[   14.204105]  [<ffffffff8145d8ad>] ip_push_pending_frames+0x28d/0x3d0
[   14.204119]  [<ffffffff8147f1cc>] udp_push_pending_frames+0x14c/0x400
[   14.204125]  [<ffffffff814803fc>] udp_sendmsg+0x39c/0x790
[   14.204137]  [<ffffffff814891d5>] inet_sendmsg+0x45/0x80
[   14.204149]  [<ffffffff8140af91>] sock_sendmsg+0xf1/0x110
[   14.204189]  [<ffffffff8140dc6c>] sys_sendmsg+0x20c/0x380
[   14.204233]  [<ffffffff8100ad82>] system_call_fastpath+0x16/0x1b

While current linux-2.6 kernel doesnt emit this warning, bug is latent
and might cause unexpected failures.

ip_dev_loopback_xmit() runs in process context, preemption enabled, so
must call netif_rx_ni() instead of netif_rx(), to make sure that we
process pending software interrupt.

Same change for ip6_dev_loopback_xmit()

Reported-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

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

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

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

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

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

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

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

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

Reported-and-tested-by: Anton Anikin <Anton@Anikin.name>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

10 years agoASoC: imx-ssi: do not call hrtimer_disable in trigger function
Sascha Hauer [Wed, 14 Apr 2010 07:17:30 +0000]
ASoC: imx-ssi: do not call hrtimer_disable in trigger function

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

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

10 years agofirewire: cdev: change license of exported header files to MIT license
Stefan Richter [Sun, 11 Apr 2010 09:52:12 +0000]
firewire: cdev: change license of exported header files to MIT license

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

Cc: Jay Fenlason <fenlason@redhat.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>

10 years agonet: dev_pick_tx() fix
Eric Dumazet [Sun, 11 Apr 2010 21:18:17 +0000]
net: dev_pick_tx() fix

When dev_pick_tx() caches tx queue_index on a socket, we must check
socket dst_entry matches skb one, or risk a crash later, as reported by
Denys Fedorysychenko, if old packets are in flight during a route
change, involving devices with different number of queues.

Bug introduced by commit a4ee3ce3
(net: Use sk_tx_queue_mapping for connected sockets)

Reported-by: Denys Fedorysychenko <nuclearcat@nuclearcat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoALSA: hda - Add position_fix quirk for Biostar mobo
Takashi Iwai [Thu, 15 Apr 2010 07:02:41 +0000]
ALSA: hda - Add position_fix quirk for Biostar mobo

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

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

Reported-by: Frank Griffin <ftg@roadrunner.com>
Cc: Eric Piel <Eric.Piel@tremplin-utc.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoALSA: hda - add a quirk for Clevo M570U laptop
Joerg Schirottke [Thu, 15 Apr 2010 06:37:41 +0000]
ALSA: hda - add a quirk for Clevo M570U laptop

Added the matching model for Clevo laptop M570U.

Signed-off-by: Joerg Schirottke <master@kanotix.com>
Tested-by: Maximilian Gerhard <maxbox@directbox.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Thu, 15 Apr 2010 01:46:03 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6

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

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

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

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

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

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

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

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

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

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

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

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

10 years agoSELinux: Reduce max avtab size to avoid page allocation failures
Stephen Smalley [Mon, 15 Mar 2010 14:42:11 +0000]
SELinux: Reduce max avtab size to avoid page allocation failures

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

Reported-by:  Russell Coker <russell@coker.com.au>
Signed-off-by: Stephen D. Smalley <sds@tycho.nsa.gov>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>

10 years agofib: suppress lockdep-RCU false positive in FIB trie.
Eric Dumazet [Wed, 14 Apr 2010 23:13:29 +0000]
fib: suppress lockdep-RCU false positive in FIB trie.

Followup of commit 634a4b20

Allow tnode_get_child_rcu() to be called either under rcu_read_lock()
protection or with RTNL held.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agom68k: Fix asm constraints for atomic_sub_and_test() and atomic_add_negative()
Geert Uytterhoeven [Sun, 21 Mar 2010 09:52:21 +0000]
m68k: Fix asm constraints for atomic_sub_and_test() and atomic_add_negative()

Recently, we started seeing this on allmodconfig builds:

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

Correct the asm constraint, like done for m68knommu.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

10 years agom68k: Fix `struct sigcontext' for ColdFire
Maxim Kuvyrkov [Wed, 3 Mar 2010 13:53:45 +0000]
m68k: Fix `struct sigcontext' for ColdFire

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

Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

10 years agovsprintf: Change struct printf_spec.precision from s8 to s16
Joe Perches [Wed, 14 Apr 2010 16:27:40 +0000]
vsprintf: Change struct printf_spec.precision from s8 to s16

Commit ef0658f3de484bf9b173639cd47544584e01efa5 changed precision
from int to s8.

There is existing kernel code that uses a larger precision.

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

Extending precision size fixes the audit system issue.

Other changes:

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

Original-patch-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agohwmon: (applesmc) Switch maintainers
Henrik Rydberg [Wed, 14 Apr 2010 14:14:11 +0000]
hwmon: (applesmc) Switch maintainers

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

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Nicolas Boichat <nicolas@boichat.ch>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

10 years agohwmon: (applesmc) Add iMac9,1 and MacBookPro2,2 support
Justin P. Mattock [Wed, 14 Apr 2010 14:14:10 +0000]
hwmon: (applesmc) Add iMac9,1 and MacBookPro2,2 support

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

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Acked-by: Nicolas Boichat <nicolas@boichat.ch>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

10 years agohwmon: (it87) Invalidate cache on temperature sensor change
Jean Delvare [Wed, 14 Apr 2010 14:14:10 +0000]
hwmon: (it87) Invalidate cache on temperature sensor change

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

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

10 years agohwmon: (it87) Properly handle wrong sensor type requests
Jean Delvare [Wed, 14 Apr 2010 14:14:09 +0000]
hwmon: (it87) Properly handle wrong sensor type requests

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

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

10 years agohwmon: (it87) Don't arbitrarily enable temperature channels
Jean Delvare [Wed, 14 Apr 2010 14:14:09 +0000]
hwmon: (it87) Don't arbitrarily enable temperature channels

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

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

10 years agohwmon: (sht15) Properly handle the case CONFIG_REGULATOR=n
Jean Delvare [Wed, 14 Apr 2010 14:14:08 +0000]
hwmon: (sht15) Properly handle the case CONFIG_REGULATOR=n

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

Reported-by: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org

10 years agohwmon: (sht15) Fix sht15_calc_temp interpolation function
Jerome Oufella [Wed, 14 Apr 2010 14:14:07 +0000]
hwmon: (sht15) Fix sht15_calc_temp interpolation function

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

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

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

Signed-off-by: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org

10 years agoALSA: hda - Avoid invalid "Independent HP" control for VIA codecs
Takashi Iwai [Wed, 14 Apr 2010 12:36:23 +0000]
ALSA: hda - Avoid invalid "Independent HP" control for VIA codecs

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

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

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

10 years agoALSA: hda - Fix control element allocations in VIA codec parser
Takashi Iwai [Wed, 14 Apr 2010 12:33:57 +0000]
ALSA: hda - Fix control element allocations in VIA codec parser

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

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

10 years agolguest: stop using KVM hypercall mechanism
Rusty Russell [Thu, 15 Apr 2010 03:43:54 +0000]
lguest: stop using KVM hypercall mechanism

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

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

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Matias Zabaljauregui <zabaljauregui@gmail.com>
Cc: Avi Kivity <avi@redhat.com>

10 years agolguest: workaround cmpxchg8b_emu by ignoring cli in the guest.
Rusty Russell [Thu, 15 Apr 2010 03:43:53 +0000]
lguest: workaround cmpxchg8b_emu by ignoring cli in the guest.

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

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

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: virtualization@lists.osdl.org

10 years agotun: orphan an skb on tx
Michael S. Tsirkin [Tue, 13 Apr 2010 04:59:44 +0000]
tun: orphan an skb on tx

The following situation was observed in the field:
tap1 sends packets, tap2 does not consume them, as a result
tap1 can not be closed. This happens because
tun/tap devices can hang on to skbs undefinitely.

As noted by Herbert, possible solutions include a timeout followed by a
copy/change of ownership of the skb, or always copying/changing
ownership if we're going into a hostile device.

This patch implements the second approach.

Note: one issue still remaining is that since skbs
keep reference to tun socket and tun socket has a
reference to tun device, we won't flush backlog,
instead simply waiting for all skbs to get transmitted.
At least this is not user-triggerable, and
this was not reported in practice, my assumption is
other devices besides tap complete an skb
within finite time after it has been queued.

A possible solution for the second issue
would not to have socket reference the device,
instead, implement dev->destructor for tun, and
wait for all skbs to complete there, but this
needs some thought, probably too risky for 2.6.34.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Yan Vugenfirer <yvugenfi@redhat.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoARM: 5974/1: arm/mach-at91 Makefile: remove two blanks.
Ernst Schwab [Thu, 4 Mar 2010 09:15:39 +0000]
ARM: 5974/1: arm/mach-at91 Makefile: remove two blanks.

Cosmetic change to mach-at91 Makefile: remove two blanks introduced
by earlier patches.

Signed-off-by: Ernst Schwab <eschwab@online.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

10 years agorcu: Update docs for rcu_access_pointer and rcu_dereference_protected
Paul E. McKenney [Fri, 9 Apr 2010 22:39:12 +0000]
rcu: Update docs for rcu_access_pointer and rcu_dereference_protected

Update examples and lists of APIs to include these new
primitives.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
Cc: eric.dumazet@gmail.com
LKML-Reference: <1270852752-25278-3-git-send-email-paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agorcu: Better explain the condition parameter of rcu_dereference_check()
David Howells [Fri, 9 Apr 2010 22:39:11 +0000]
rcu: Better explain the condition parameter of rcu_dereference_check()

Better explain the condition parameter of
rcu_dereference_check() that describes the conditions under
which the dereference is permitted to take place (and
incorporate Yong Zhang's suggestion).  This condition is only
checked under lockdep proving.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: eric.dumazet@gmail.com
LKML-Reference: <1270852752-25278-2-git-send-email-paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agorcu: Add rcu_access_pointer and rcu_dereference_protected
Paul E. McKenney [Fri, 9 Apr 2010 22:39:10 +0000]
rcu: Add rcu_access_pointer and rcu_dereference_protected

This patch adds variants of rcu_dereference() that handle
situations where the RCU-protected data structure cannot change,
perhaps due to our holding the update-side lock, or where the
RCU-protected pointer is only to be fetched, not dereferenced.
These are needed due to some performance concerns with using
rcu_dereference() where it is not required, aside from the need
for lockdep/sparse checking.

The new rcu_access_pointer() primitive is for the case where the
pointer is be fetch and not dereferenced.  This primitive may be
used without protection, RCU or otherwise, due to the fact that
it uses ACCESS_ONCE().

The new rcu_dereference_protected() primitive is for the case
where updates are prevented, for example, due to holding the
update-side lock.  This primitive does neither ACCESS_ONCE() nor
smp_read_barrier_depends(), so can only be used when updates are
somehow prevented.

Suggested-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
Cc: eric.dumazet@gmail.com
LKML-Reference: <1270852752-25278-1-git-send-email-paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agoARM: 6052/1: kdump: make kexec work in interrupt context
Mika Westerberg [Tue, 13 Apr 2010 06:01:46 +0000]
ARM: 6052/1: kdump: make kexec work in interrupt context

When crash happens in interrupt context there is no userspace context.
We always use current->active_mm in those cases.

Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

10 years agoARM: 6051/1: VFP: preserve the HW context when calling signal handlers
Imre Deak [Sun, 11 Apr 2010 14:58:27 +0000]
ARM: 6051/1: VFP: preserve the HW context when calling signal handlers

From: Imre Deak <imre.deak@nokia.com>

Signal handlers can use floating point, so prevent them to corrupt
the main thread's VFP context. So far there were two signal stack
frame formats defined based on the VFP implementation, but the user
struct used for ptrace covers all posibilities, so use it for the
signal stack too.

Introduce also a new user struct for VFP exception registers. In
this too fields not relevant to the current VFP architecture are
ignored.

Support to save / restore the exception registers was added by
Will Deacon.

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

10 years agoARM: 6050/1: VFP: fix the SMP versions of vfp_{sync,flush}_hwstate
Imre Deak [Sun, 11 Apr 2010 14:57:07 +0000]
ARM: 6050/1: VFP: fix the SMP versions of vfp_{sync,flush}_hwstate

From: Imre Deak <imre.deak@nokia.com>

Recently the UP versions of these functions were refactored and as
a side effect it became possible to call them for the current thread.
This isn't true for the SMP versions however, so fix this up.

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

10 years agoARM: 6007/1: fix highmem with VIPT cache and DMA
Nicolas Pitre [Mon, 29 Mar 2010 20:46:02 +0000]
ARM: 6007/1: fix highmem with VIPT cache and DMA

The VIVT cache of a highmem page is always flushed before the page
is unmapped.  This cache flush is explicit through flush_cache_kmaps()
in flush_all_zero_pkmaps(), or through __cpuc_flush_dcache_area() in
kunmap_atomic().  There is also an implicit flush of those highmem pages
that were part of a process that just terminated making those pages free
as the whole VIVT cache has to be flushed on every task switch. Hence
unmapped highmem pages need no cache maintenance in that case.

However unmapped pages may still be cached with a VIPT cache because the
cache is tagged with physical addresses.  There is no need for a whole
cache flush during task switching for that reason, and despite the
explicit cache flushes in flush_all_zero_pkmaps() and kunmap_atomic(),
some highmem pages that were mapped in user space end up still cached
even when they become unmapped.

So, we do have to perform cache maintenance on those unmapped highmem
pages in the context of DMA when using a VIPT cache.  Unfortunately,
it is not possible to perform that cache maintenance using physical
addresses as all the L1 cache maintenance coprocessor functions accept
virtual addresses only.  Therefore we have no choice but to set up a
temporary virtual mapping for that purpose.

And of course the explicit cache flushing when unmapping a highmem page
on a system with a VIPT cache now can go, which should increase
performance.

While at it, because the code in __flush_dcache_page() has to be modified
anyway, let's also make sure the mapped highmem pages are pinned with
kmap_high_get() for the duration of the cache maintenance operation.
Because kunmap() does unmap highmem pages lazily, it was reported by
Gary King <GKing@nvidia.com> that those pages ended up being unmapped
during cache maintenance on SMP causing segmentation faults.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

10 years agoARM: 5975/1: AT91 slow-clock suspend: don't wait when turning PLLs off
Anders Larsen [Thu, 4 Mar 2010 10:22:53 +0000]
ARM: 5975/1: AT91 slow-clock suspend: don't wait when turning PLLs off

From: Julien Langer <julien.langer@gmail.com>

AT91: when turning off the PLLs during suspend, don't wait for the lock
flag to be set. Previously the code would always run into the loop
limitation of 1000 iterations because the flag is never set when turning
the PLLs off.

Comments from Anders Larsen:

 (in http://marc.info/?l=linux-kernel&m=127058929724193&w=2)

Signed-off-by: Julien Langer <julien.langer@gmail.com>
Signed-off-by: Anders Larsen <al@alarsen.net>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

10 years agoRevert "Input: wacom - merge out and in prox events"
Dmitry Torokhov [Wed, 14 Apr 2010 06:08:58 +0000]
Revert "Input: wacom - merge out and in prox events"

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

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

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

10 years agoforcedeth: fix tx limit2 flag check
Ayaz Abdulla [Wed, 14 Apr 2010 01:49:51 +0000]
forcedeth: fix tx limit2 flag check

This is a fix for bug 572201 @ bugs.debian.org

This patch fixes the TX_LIMIT feature flag. The previous logic check
for TX_LIMIT2 also took into account a device that only had TX_LIMIT
set.

Reported-by: Stephen Mulcahu <stephen.mulcahy@deri.org>
Reported-by: Ben Huchings <ben@decadent.org.uk>
Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoMerge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspe...
Linus Torvalds [Wed, 14 Apr 2010 00:49:48 +0000]
Merge branch 'pm-fixes' of git://git./linux/kernel/git/rafael/suspend-2.6

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

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

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

10 years agoceph: use separate class for ceph sockets' sk_lock
Sage Weil [Tue, 13 Apr 2010 21:07:07 +0000]
ceph: use separate class for ceph sockets' sk_lock

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

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

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

Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoceph: reserve one more caps space when doing readdir
Yehuda Sadeh [Tue, 13 Apr 2010 18:45:56 +0000]
ceph: reserve one more caps space when doing readdir

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

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoceph: queue_cap_snap should always queue dirty context
Sage Weil [Tue, 13 Apr 2010 18:41:22 +0000]
ceph: queue_cap_snap should always queue dirty context

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

Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Tue, 13 Apr 2010 18:34:05 +0000]
Merge git://git./linux/kernel/git/davem/sparc-2.6

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

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

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

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

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

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

Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agocan: avoids a false warning
Eric Dumazet [Fri, 9 Apr 2010 23:47:31 +0000]
can: avoids a false warning

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

Reported-by: Németh Márton <nm127@freemail.h
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoe1000e: stop cleaning when we reach tx_ring->next_to_use
Terry Loftin [Fri, 9 Apr 2010 10:29:49 +0000]
e1000e: stop cleaning when we reach tx_ring->next_to_use

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

Signed-off-by: Terry Loftin <terry.loftin@hp.com>
Acked-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoigb: restrict WoL for 82576 ET2 Quad Port Server Adapter
Stefan Assmann [Fri, 9 Apr 2010 09:51:34 +0000]
igb: restrict WoL for 82576 ET2 Quad Port Server Adapter

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

Signed-off-by: Stefan Assmann <sassmann@redhat.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>