Kernel

[PATCH 0/9] Suspend block api (version 4)
This patch series adds a suspend-block api that provides the same functionality as the android wakelock api. The code is mostly the same as version 3 posted last year, but the main entry point has changed back to /sys/power/state with a new /sys/power/policy to alter its behavior. Timeout support is not included in... 23 Apr 2010 21:10

i2c-algo-pca: fix coding style issues in i2c-algo-pca.c
On Fri, Apr 23, 2010 at 12:01:55AM +0200, Farid Hammane wrote: This patch fixes coding style issues found by checkpatch.pl. i2c-algo-pca.c has been built successfully after applying this patch. Signed-off-by: Farid Hammane <farid.hammane(a)gmail.com> Reviewed-by: Wolfram Sang <w.sang(a)pengutronix.de> Th... 26 Apr 2010 04:47

[PATCH v2.6.34-rc5 12/12] memcg: css_id() must be called under rcu_read_lock()
This patch fixes task_in_mem_cgroup(), mem_cgroup_uncharge_swapcache(), mem_cgroup_move_swap_account(), and is_target_pte_for_mc() to protect calls to css_id(). An additional RCU lockdep splat was reported for memcg_oom_wake_function(), however, this function is not yet in mainline as of 2.6.34-rc5. Reported-by... 23 Apr 2010 21:09

[GIT PULL] x86 platform drivers
Hi Linus, Some minor bugfixes and a the addition of a backlight control for recent Eees. The following changes since commit 0eddb519b9127c73d53db4bf3ec1d45b13f844d1: Linus Torvalds (1): Merge branch 'for-linus' of git://git.kernel.org/.../roland/infiniband are available in the git repository at: ... 23 Apr 2010 21:09

[PATCH v2.6.34-rc5 02/12] rcu: fix RCU lockdep splat on freezer_fork path
Add an RCU read-side critical section to suppress this false positive. Located-by: Eric Paris <eparis(a)parisplace.org> Signed-off-by: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com> Acked-by: Li Zefan <lizf(a)cn.fujitsu.com> --- kernel/cgroup_freezer.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) ... 23 Apr 2010 21:09

[PATCH v2.6.34-rc5 07/12] KEYS: Fix an RCU warning in the reading of user keys
From: David Howells <dhowells(a)redhat.com> Fix an RCU warning in the reading of user keys: =================================================== [ INFO: suspicious rcu_dereference_check() usage. ] --------------------------------------------------- security/keys/user_defined.c:202 invoked rcu_dereference_check() ... 23 Apr 2010 21:09

[PATCH v2.6.34-rc5 04/12] NFSv4: Fix the locking in nfs_inode_reclaim_delegation()
From: Trond Myklebust <Trond.Myklebust(a)netapp.com> Ensure that we correctly rcu-dereference the delegation itself, and that we protect against removal while we're changing the contents. Signed-off-by: Trond Myklebust <Trond.Myklebust(a)netapp.com> Signed-off-by: David Howells <dhowells(a)redhat.com> Signed-off-by:... 23 Apr 2010 21:09

[PATCH v2.6.34-rc5 01/12] rcu: Fix RCU lockdep splat in set_task_cpu on fork path
From: Peter Zijlstra <peterz(a)infradead.org> Add an RCU read-side critical section to suppress this false positive. Located-by: Eric Paris <eparis(a)parisplace.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra(a)chello.nl> Signed-off-by: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com> --- kernel/sched.c | 10 +++++... 23 Apr 2010 21:09

[PATCH v2.6.34-rc5 10/12] sched: Fix an RCU warning in print_task()
From: Li Zefan <lizf(a)cn.fujitsu.com> With CONFIG_PROVE_RCU=y, a warning can be triggered: $ cat /proc/sched_debug .... kernel/cgroup.c:1649 invoked rcu_dereference_check() without protection! .... Both cgroup_path() and task_group() should be called with either rcu_read_lock or cgroup_mutex held. Th... 23 Apr 2010 21:09

block: Add a trace point whenever a barrier IO request is sent
On Wed, Apr 21, 2010 at 11:27:27PM +0200, Jens Axboe wrote: On Wed, Apr 21 2010, Darrick J. Wong wrote: Simple debugging patch used to watch for barrier requests. I've been using this to watch ext4's barrier=1 behavior. But barriers are already being logged, if you watch blkparse data, it'll be ... 23 Apr 2010 21:09