Tao Ma 40f165f416 ocfs2: Move orphan scan work to ocfs2_wq. ... We used to let orphan scan work in the default work queue, but there is a corner case which will make the system deadlock. The scenario is like this: 1. set heartbeat threadshold to 200. this will allow us to have a great chance to have a orphan scan work before our quorum decision. 2. mount node 1. 3. after 1~2 minutes, mount node 2(in order to make the bug easier to reproduce, better add maxcpus=1 to kernel command line). 4. node 1 do orphan scan work. 5. node 2 do orphan scan work. 6. node 1 do orphan scan work. After this, node 1 hold the orphan scan lock while node 2 know node 1 is the master. 7. ifdown eth2 in node 2(eth2 is what we do ocfs2 interconnection). Now when node 2 begins orphan scan, the system queue is blocked. The root cause is that both orphan scan work and quorum decision work will use the system event work queue. orphan scan has a chance of blocking the event work queue(in dlm_wait_for_node_death) so that there is no chance for quorum decision work to proceed. This patch resolve it by moving orphan scan work to ocfs2_wq. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>		2010-06-15 15:43:48 -07:00
..
cluster	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	2010-05-21 07:20:17 -07:00
dlm	fs/ocfs2/dlm: Add missing spin_unlock	2010-06-15 15:43:46 -07:00
dlmfs	ocfs2_dlmfs: Fix math error when reading LVB.	2010-04-23 15:24:59 -07:00
acl.c	ocfs: constify xattr_handler	2010-05-21 18:31:20 -04:00
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	ocfs2: Add CoW support.	2009-09-22 20:09:36 -07:00
blockcheck.c	kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, SHRT_MAX and SHRT_MIN	2010-05-25 08:07:02 -07:00
blockcheck.h	ocfs2: Add statistics for the checksum and ecc operations.	2009-06-03 19:15:36 -07:00
buffer_head_io.c	Merge branch 'skip_delete_inode' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2-mark into ocfs2-fixes	2010-04-30 13:37:29 -07:00
buffer_head_io.h	ocfs2: Take the inode out of the metadata read/write paths.	2009-09-04 16:07:48 -07:00
dcache.c	ocfs2: invalidate dentry if its dentry_lock isn't initialized.	2009-08-27 18:10:54 -07:00
dcache.h	ocfs2: Fix deadlock on umount	2009-07-21 15:47:55 -07:00
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	ocfs2: Introduce dir free space list	2009-04-03 11:39:16 -07:00
dlmglue.c	ocfs2: Avoid unnecessary block mapping when refreshing quota info	2010-05-21 19:30:46 +02:00
dlmglue.h	ocfs2: Add new refcount tree lock resource in dlmglue.	2009-09-22 20:09:28 -07:00
export.c	ocfs2/trivial: Remove trailing whitespaces	2010-01-25 19:20:51 -08:00
export.h
extent_map.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
extent_map.h	ocfs2: Return extent flags for xattr value tree.	2009-09-22 20:09:39 -07:00
file.c	kill spurious reference to vmtruncate	2010-05-27 22:15:42 -04:00
file.h	ocfs2: Integrate CoW in file write.	2009-09-22 20:09:37 -07:00
heartbeat.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
heartbeat.h
inode.c	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	2010-05-21 07:20:17 -07:00
inode.h	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	2010-05-21 07:20:17 -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: Move orphan scan work to ocfs2_wq.	2010-06-15 15:43:48 -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	ocfs2: POSIX file locks support	2008-10-13 13:57:57 -07:00
Makefile	ocfs2: allocation reservations	2010-05-05 18:17:30 -07:00
mmap.c	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	2010-05-21 07:20:17 -07:00
mmap.h
namei.c	ocfs2: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:25 -04:00
namei.h	ocfs2: Create reflinked file in orphan dir.	2009-09-22 20:09:48 -07:00
ocfs1_fs_compat.h
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: Add new refcount tree lock resource in dlmglue.	2009-09-22 20:09:28 -07:00
ocfs2_lockingver.h	ocfs2_dlmfs: Enable the use of user cluster stacks.	2010-02-26 15:41:18 -08:00
ocfs2.h	ocfs2: Add dir_resv_level mount option	2010-05-05 18:18:07 -07:00
quota_global.c	ocfs2: Fix NULL pointer deref when writing local dquot	2010-05-21 19:30:48 +02:00
quota_local.c	ocfs2: Fix lock inversion in quotas during umount	2010-05-21 19:30:48 +02:00
quota.h	ocfs2: Fix NULL pointer deref when writing local dquot	2010-05-21 19:30:48 +02:00
refcounttree.c	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	2010-05-21 07:20:17 -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	ocfs2: Take the inode out of the metadata read/write paths.	2009-09-04 16:07:48 -07:00
slot_map.h
stack_o2cb.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
stack_user.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
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: Silence a gcc warning.	2010-05-18 16:48:41 -07:00
suballoc.h	ocfs2: allocation reservations	2010-05-05 18:17:30 -07:00
super.c	quota: rename default quotactl methods to dquot_	2010-05-24 14:10:17 +02:00
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	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
sysfile.h
uptodate.c	ocfs2/trivial: Remove trailing whitespaces	2010-01-25 19:20:51 -08:00
uptodate.h	ocfs2: Pass struct ocfs2_caching_info to the journal functions.	2009-09-04 16:07:50 -07:00
ver.c
ver.h
xattr.c	ocfs: constify xattr_handler	2010-05-21 18:31:20 -04:00
xattr.h	ocfs: constify xattr_handler	2010-05-21 18:31:20 -04:00