Merge branch 'for_rmk' of git://git.linaro.org/kernel/linux-linaro-next into devel-stable

Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
o2dlm: force free mles d

Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
o2dlm: force free mles during dlm exit
ocfs2: Sync inode flags with ext2.
ocfs2: Move 'wanted' into parens of ocfs2_resmap_resv_bits.
ocfs2: Use cpu_to_le16 for e_leaf_clusters in ocfs2_bg_discontig_add_extent.
ocfs2: update ctime when changing the file's permission by setfacl
ocfs2/net: fix uninitialized ret in o2net_send_message_vec()
Ocfs2: Handle empty list in lockres_seq_start() for dlmdebug.c
Ocfs2: Re-access the journal after ocfs2_insert_extent() in dxdir codes.
ocfs2: Fix lockdep warning in reflink.
ocfs2/lockdep: Move ip_xattr_sem out of ocfs2_xattr_get_nolock.

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ocfs2: Fix lockdep warning in reflink.

This patch change mutex_lock to a new subclass and
add a new inode lock subclass for the target inode
which caused this lockdep warning.

=====================

ocfs2: Fix lockdep warning in reflink.

This patch change mutex_lock to a new subclass and
add a new inode lock subclass for the target inode
which caused this lockdep warning.

=============================================
[ INFO: possible recursive locking detected ]
2.6.35+ #5
---------------------------------------------
reflink/11086 is trying to acquire lock:
(Meta){+++++.}, at: [<ffffffffa06f9d65>] ocfs2_reflink_ioctl+0x898/0x1229 [ocfs2]

but task is already holding lock:
(Meta){+++++.}, at: [<ffffffffa06f9aa0>] ocfs2_reflink_ioctl+0x5d3/0x1229 [ocfs2]

other info that might help us debug this:
6 locks held by reflink/11086:
#0: (&sb->s_type->i_mutex_key#15/1){+.+.+.}, at: [<ffffffff820e09ec>] lookup_create+0x26/0x97
#1: (&sb->s_type->i_mutex_key#15){+.+.+.}, at: [<ffffffffa06f99a0>] ocfs2_reflink_ioctl+0x4d3/0x1229 [ocfs2]
#2: (Meta){+++++.}, at: [<ffffffffa06f9aa0>] ocfs2_reflink_ioctl+0x5d3/0x1229 [ocfs2]
#3: (&oi->ip_xattr_sem){+.+.+.}, at: [<ffffffffa06f9b58>] ocfs2_reflink_ioctl+0x68b/0x1229 [ocfs2]
#4: (&oi->ip_alloc_sem){+.+.+.}, at: [<ffffffffa06f9b67>] ocfs2_reflink_ioctl+0x69a/0x1229 [ocfs2]
#5: (&sb->s_type->i_mutex_key#15/2){+.+...}, at: [<ffffffffa06f9d4f>] ocfs2_reflink_ioctl+0x882/0x1229 [ocfs2]

stack backtrace:
Pid: 11086, comm: reflink Not tainted 2.6.35+ #5
Call Trace:
[<ffffffff82063dd9>] validate_chain+0x56e/0xd68
[<ffffffff82062275>] ? mark_held_locks+0x49/0x69
[<ffffffff82064d6d>] __lock_acquire+0x79a/0x7f1
[<ffffffff82065a81>] lock_acquire+0xc6/0xed
[<ffffffffa06f9d65>] ? ocfs2_reflink_ioctl+0x898/0x1229 [ocfs2]
[<ffffffffa06c9ade>] __ocfs2_cluster_lock+0x975/0xa0d [ocfs2]
[<ffffffffa06f9d65>] ? ocfs2_reflink_ioctl+0x898/0x1229 [ocfs2]
[<ffffffffa06e107b>] ? ocfs2_wait_for_recovery+0x15/0x8a [ocfs2]
[<ffffffffa06cb6ea>] ocfs2_inode_lock_full_nested+0x1ac/0xdc5 [ocfs2]
[<ffffffffa06f9d65>] ? ocfs2_reflink_ioctl+0x898/0x1229 [ocfs2]
[<ffffffff820623a0>] ? trace_hardirqs_on_caller+0x10b/0x12f
[<ffffffff82060193>] ? debug_mutex_free_waiter+0x4f/0x53
[<ffffffffa06f9d65>] ocfs2_reflink_ioctl+0x898/0x1229 [ocfs2]
[<ffffffffa06ce24a>] ? ocfs2_file_lock_res_init+0x66/0x78 [ocfs2]
[<ffffffff820bb2d2>] ? might_fault+0x40/0x8d
[<ffffffffa06df9f6>] ocfs2_ioctl+0x61a/0x656 [ocfs2]
[<ffffffff820ee5d3>] ? mntput_no_expire+0x1d/0xb0
[<ffffffff820e07b3>] ? path_put+0x2c/0x31
[<ffffffff820e53ac>] vfs_ioctl+0x2a/0x9d
[<ffffffff820e5903>] do_vfs_ioctl+0x45d/0x4ae
[<ffffffff8233a7f6>] ? _raw_spin_unlock+0x26/0x2a
[<ffffffff8200299c>] ? sysret_check+0x27/0x62
[<ffffffff820e59ab>] sys_ioctl+0x57/0x7a
[<ffffffff8200296b>] system_call_fastpath+0x16/0x1b

Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

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Merge commit 'v2.6.32' into reiserfs/kill-bkl

Merge-reason: The tree was based 2.6.31. It's better to be up to date
with 2.6.32. Although no conflicting changes were made in between,
it gives benchm

Merge commit 'v2.6.32' into reiserfs/kill-bkl

Merge-reason: The tree was based 2.6.31. It's better to be up to date
with 2.6.32. Although no conflicting changes were made in between,
it gives benchmarking results closer to the lastest kernel behaviour.

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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

Merge branch 'drm-core-next' of ../linux-2.6 into drm-next

Merge commit 'v2.6.32-rc5' into for-linus

Merge branch 'fix/misc' into topic/misc

Merge branch 'linus' into sched/core

Conflicts:
fs/proc/array.c

Merge reason: resolve conflict and queue up dependent patch.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge commit 'perf/core' into perf/hw-breakpoint

Conflicts:
kernel/Makefile
kernel/trace/Makefile
kernel/trace/trace.h
samples/Makefile

Merge reason: We need to be uptodate with the perf events

Merge commit 'perf/core' into perf/hw-breakpoint

Conflicts:
kernel/Makefile
kernel/trace/Makefile
kernel/trace/trace.h
samples/Makefile

Merge reason: We need to be uptodate with the perf events development
branch because we plan to rewrite the breakpoints API on top of
perf events.

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Merge commit 'v2.6.32-rc3'

Merge branch 'for-2.6.32' into for-2.6.33

Merge branch 'perf/urgent' into perf/core

Merge reason: Upcoming patch is dependent on a fix in perf/urgent.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge branch 'tracing/urgent' into tracing/core

Merge reason: Pick up latest fixes and update to latest upstream.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge branch 'master' into next

Merge branch 'master' of /home/davem/src/GIT/linux-2.6/

Conflicts:
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/cpc-usb/TODO
drivers/staging/cpc-usb/cpc-usb_drv.c
drivers/st

Merge branch 'master' of /home/davem/src/GIT/linux-2.6/

Conflicts:
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/cpc-usb/TODO
drivers/staging/cpc-usb/cpc-usb_drv.c
drivers/staging/cpc-usb/cpc.h
drivers/staging/cpc-usb/cpc_int.h
drivers/staging/cpc-usb/cpcusb.h

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Merge branch 'origin' into for-linus

Conflicts:
MAINTAINERS

Merge branch 'linus' into x86/urgent

Merge reason: Queueing up dependent early-printk fix.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge commit 'linus/master' into tracing/kprobes

Conflicts:
kernel/trace/Makefile
kernel/trace/trace.h
kernel/trace/trace_event_types.h
kernel/trace/trace_export.c

Merge reason:
Sync with late

Merge commit 'linus/master' into tracing/kprobes

Conflicts:
kernel/trace/Makefile
kernel/trace/trace.h
kernel/trace/trace_event_types.h
kernel/trace/trace_export.c

Merge reason:
Sync with latest significant tracing core changes.

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Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (85 commits)
ocfs2: Use

Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (85 commits)
ocfs2: Use buffer IO if we are appending a file.
ocfs2: add spinlock protection when dealing with lockres->purge.
dlmglue.c: add missed mlog lines
ocfs2: __ocfs2_abort() should not enable panic for local mounts
ocfs2: Add ioctl for reflink.
ocfs2: Enable refcount tree support.
ocfs2: Implement ocfs2_reflink.
ocfs2: Add preserve to reflink.
ocfs2: Create reflinked file in orphan dir.
ocfs2: Use proper parameter for some inode operation.
ocfs2: Make transaction extend more efficient.
ocfs2: Don't merge in 1st refcount ops of reflink.
ocfs2: Modify removing xattr process for refcount.
ocfs2: Add reflink support for xattr.
ocfs2: Create an xattr indexed block if needed.
ocfs2: Call refcount tree remove process properly.
ocfs2: Attach xattr clusters to refcount tree.
ocfs2: Abstract ocfs2 xattr tree extend rec iteration process.
ocfs2: Abstract the creation of xattr block.
ocfs2: Remove inode from ocfs2_xattr_bucket_get_name_value.
...

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ocfs2: Add new refcount tree lock resource in dlmglue.

refcount tree lock resource is used to protect refcount
tree read/write among multiple nodes.

Signed-off-by: Tao Ma <tao.ma@oracle.com>

Merge branch 'next' into for-linus

Merge branch 'dmaengine' into async-tx-next

Conflicts:
crypto/async_tx/async_xor.c
drivers/dma/ioat/dma_v2.h
drivers/dma/ioat/pci.c
drivers/md/raid5.c

Merge commit 'v2.6.31-rc1' into dmaengine

Merge branch 'tracing/core' into tracing/hw-breakpoints

Conflicts:
arch/Kconfig
kernel/trace/trace.h

Merge reason: resolve the conflicts, plus adopt to the new
ring-buffer APIs.

Si

Merge branch 'tracing/core' into tracing/hw-breakpoints

Conflicts:
arch/Kconfig
kernel/trace/trace.h

Merge reason: resolve the conflicts, plus adopt to the new
ring-buffer APIs.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

show more ...