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linux-2.6/fs/ocfs2
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Wengang Wang d9ef75221a ocfs2:dlm: avoid dlm->ast_lock lockres->spinlock dependency break 
Currently we process a dirty lockres with the lockres->spinlock taken. While
during the process, we may need to lock on dlm->ast_lock. This breaks the
dependency of dlm->ast_lock(lock first) and lockres->spinlock(lock second).

This patch fixes the problem.
Since we can't release lockres->spinlock, we have to take dlm->ast_lock
just before taking the lockres->spinlock and release it after lockres->spinlock
is released. And use __dlm_queue_bast()/__dlm_queue_ast(), the nolock version,
in dlm_shuffle_lists(). There are no too many locks on a lockres, so there is no
performance harm.

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-05-18 16:41:34 -07:00
..
cluster o2net: log socket state changes 2010-05-05 18:18:08 -07:00
dlm ocfs2:dlm: avoid dlm->ast_lock lockres->spinlock dependency break 2010-05-18 16:41:34 -07:00
dlmfs ocfs2/userdlm: Add tracing in userdlm 2010-02-27 19:57:07 -08:00
acl.c ocfs2: set i_mode on disk during acl operations 2010-03-17 12:28:22 -07:00
acl.h ocfs2: Always include ACL support 2009-10-28 23:05:57 -07:00
alloc.c Merge branch 'discontig-bg' of git://oss.oracle.com/git/tma/linux-2.6 into ocfs2-merge-window 2010-05-18 16:40:42 -07:00
alloc.h Merge branch 'discontig-bg' of git://oss.oracle.com/git/tma/linux-2.6 into ocfs2-merge-window 2010-05-18 16:40:42 -07:00
aops.c ocfs2: use allocation reservations during file write 2010-05-05 18:17:30 -07:00
aops.h
blockcheck.c tree-wide: fix typos "offest" -> "offset" 2009-12-04 15:39:50 +01:00
blockcheck.h
buffer_head_io.c ocfs2/trivial: Remove trailing whitespaces 2010-01-25 19:20:51 -08:00
buffer_head_io.h
dcache.c
dcache.h
dir.c Merge branch 'discontig-bg' of git://oss.oracle.com/git/tma/linux-2.6 into ocfs2-merge-window 2010-05-18 16:40:42 -07:00
dir.h
dlmglue.c Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
dlmglue.h
export.c ocfs2/trivial: Remove trailing whitespaces 2010-01-25 19:20:51 -08:00
export.h
extent_map.c Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
extent_map.h
file.c Ocfs2: Optimize punching-hole code. 2010-05-18 12:31:05 -07:00
file.h
heartbeat.c
heartbeat.h
inode.c Ocfs2: Optimize ocfs2 truncate to use ocfs2_remove_btree_range() instead. 2010-05-18 12:25:10 -07:00
inode.h ocfs2: use allocation reservations during file write 2010-05-05 18:17:30 -07:00
ioctl.c ocfs2: Use compat_ptr in reflink_arguments. 2010-02-02 18:56:37 -08:00
ioctl.h Ocfs2: Move ocfs2 ioctl definitions from ocfs2_fs.h to newly added ocfs2_ioctl.h 2010-03-02 14:10:20 -08:00
journal.c ocfs2: Make ocfs2_extend_trans() really extend. 2010-05-05 18:18:09 -07:00
journal.h ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
Kconfig ocfs2: Always include ACL support 2009-10-28 23:05:57 -07:00
localalloc.c ocfs2/trivial: Code cleanup for allocation reservation. 2010-05-05 18:18:09 -07:00
localalloc.h ocfs2: increase the default size of local alloc windows 2010-05-05 18:18:07 -07:00
locks.c [PATCH] Skip check for mandatory locks when unlocking 2010-03-17 12:07:16 -07:00
locks.h
Makefile ocfs2: allocation reservations 2010-05-05 18:17:30 -07:00
mmap.c ocfs2: Wrap signal blocking in void functions. 2010-05-10 11:50:10 -07:00
mmap.h
namei.c Merge branch 'discontig-bg' of git://oss.oracle.com/git/tma/linux-2.6 into ocfs2-merge-window 2010-05-18 16:40:42 -07:00
namei.h ocfs2: Create reflinked file in orphan dir. 2009-09-22 20:09:48 -07:00
ocfs1_fs_compat.h
ocfs2.h ocfs2: Add dir_resv_level mount option 2010-05-05 18:18:07 -07:00
ocfs2_fs.h ocfs2: increase the default size of local alloc windows 2010-05-05 18:18:07 -07:00
ocfs2_ioctl.h Ocfs2: Move ocfs2 ioctl definitions from ocfs2_fs.h to newly added ocfs2_ioctl.h 2010-03-02 14:10:20 -08:00
ocfs2_lockid.h
ocfs2_lockingver.h ocfs2_dlmfs: Enable the use of user cluster stacks. 2010-02-26 15:41:18 -08:00
quota.h quota: Move definition of QFMT_OCFS2 to linux/quota.h 2009-12-10 15:02:53 +01:00
quota_global.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
quota_local.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
refcounttree.c Merge branch 'discontig-bg' of git://oss.oracle.com/git/tma/linux-2.6 into ocfs2-merge-window 2010-05-18 16:40:42 -07:00
refcounttree.h Ocfs2: Optimize ocfs2 truncate to use ocfs2_remove_btree_range() instead. 2010-05-18 12:25:10 -07:00
reservations.c ocfs2/trivial: Code cleanup for allocation reservation. 2010-05-05 18:18:09 -07:00
reservations.h ocfs2: make ocfs2_adjust_resv_from_alloc simple. 2010-05-05 18:18:09 -07:00
resize.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
resize.h
slot_map.c
slot_map.h
stack_o2cb.c ocfs2: Hang the locking proto on the cluster conn and use it in asts. 2010-02-26 15:41:16 -08:00
stack_user.c ocfs2: Remove the ast pointers from ocfs2_stack_plugins 2010-02-26 15:41:16 -08:00
stackglue.c ocfs2_dlmfs: Enable the use of user cluster stacks. 2010-02-26 15:41:18 -08:00
stackglue.h ocfs2_dlmfs: Enable the use of user cluster stacks. 2010-02-26 15:41:18 -08:00
suballoc.c ocfs2: remove ocfs2_local_alloc_in_range() 2010-05-05 18:17:31 -07:00
suballoc.h ocfs2: allocation reservations 2010-05-05 18:17:30 -07:00
super.c Merge branch 'discontig-bg' of git://oss.oracle.com/git/tma/linux-2.6 into ocfs2-merge-window 2010-05-18 16:40:42 -07:00
super.h ocfs2: Wrap signal blocking in void functions. 2010-05-10 11:50:10 -07:00
symlink.c ocfs2: Fix refcnt leak on ocfs2_fast_follow_link() error path 2010-01-11 15:38:50 -08:00
symlink.h
sysfile.c
sysfile.h
uptodate.c ocfs2/trivial: Remove trailing whitespaces 2010-01-25 19:20:51 -08:00
uptodate.h
ver.c
ver.h
xattr.c ocfs2: Reset xattr value size after xa_cleanup_value_truncate(). 2010-05-18 16:41:21 -07:00
xattr.h ocfs2: Always include ACL support 2009-10-28 23:05:57 -07:00