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OpenCloudOS-Kernel/fs/ocfs2
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Joseph Qi 012572d4fc ocfs2/dlm: fix deadlock when dispatch assert master 
The order of the following three spinlocks should be:
dlm_domain_lock < dlm_ctxt->spinlock < dlm_lock_resource->spinlock

But dlm_dispatch_assert_master() is called while holding
dlm_ctxt->spinlock and dlm_lock_resource->spinlock, and then it calls
dlm_grab() which will take dlm_domain_lock.

Once another thread (for example, dlm_query_join_handler) has already
taken dlm_domain_lock, and tries to take dlm_ctxt->spinlock deadlock
happens.

Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: "Junxiao Bi" <junxiao.bi@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2015-09-22 15:09:53 -07:00
..
cluster ocfs2: use 64bit variables to track heartbeat time 2015-09-04 16:54:41 -07:00
dlm ocfs2/dlm: fix deadlock when dispatch assert master 2015-09-22 15:09:53 -07:00
dlmfs VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
Kconfig
…
Makefile ocfs2: remove versioning information 2014-01-21 16:19:41 -08:00
acl.c ocfs2: take inode lock in ocfs2_iop_set/get_acl() 2015-09-04 16:54:41 -07:00
acl.h ocfs2: use generic posix ACL infrastructure 2014-01-25 23:58:21 -05:00
alloc.c ocfs2: clean up redundant NULL checks before kfree 2015-09-04 16:54:41 -07:00
alloc.h ocfs2: reflink: fix slow unlink for refcounted file 2014-12-18 19:08:11 -08:00
aops.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
aops.h ocfs2: remove OCFS2_IOCB_SEM lock type in direct io 2015-06-24 17:49:39 -07:00
blockcheck.c ocfs2: kill endianness abuses in blockcheck.c 2012-05-29 23:28:35 -04:00
blockcheck.h
…
buffer_head_io.c ocfs2: clear the rest of the buffers on error 2015-09-04 16:54:41 -07:00
buffer_head_io.h
…
dcache.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
dcache.h ocfs2: revert iput deferring code in ocfs2_drop_dentry_lock 2014-04-03 16:20:55 -07:00
dir.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
dir.h VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
dlmglue.c ocfs2: remove unneeded code in ocfs2_dlm_init 2015-09-04 16:54:41 -07:00
dlmglue.h ocfs2: avoid blocking in ocfs2_mark_lockres_freeing() in downconvert thread 2014-04-03 16:20:55 -07:00
export.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
export.h
…
extent_map.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
extent_map.h ocfs2: Implement llseek() 2011-07-25 14:58:15 -07:00
file.c ocfs2: fix BUG_ON() in ocfs2_ci_checkpointed() 2015-09-04 16:54:41 -07:00
file.h ocfs2: prepare some interfaces used in append direct io 2015-02-16 17:56:04 -08:00
heartbeat.c
…
heartbeat.h
…
inode.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
inode.h ocfs2: fix race between dio and recover orphan 2015-09-04 16:54:41 -07:00
ioctl.c ioctl_compat: handle FITRIM 2015-07-09 11:42:21 -07:00
ioctl.h
…
journal.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
journal.h ocfs2: add functions to add and remove inode in orphan dir 2015-02-16 17:56:04 -08:00
localalloc.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
localalloc.h ocfs2: free allocated clusters if error occurs after ocfs2_claim_clusters 2014-02-06 13:48:51 -08:00
locks.c ocfs2: flock: drop cross-node lock when failed locally 2014-04-03 16:20:56 -07:00
locks.h
…
mmap.c mm: drop vm_ops->remap_pages and generic_file_remap_pages() stub 2015-02-10 14:30:30 -08:00
mmap.h
…
move_extents.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
move_extents.h Ocfs2/move_extents: move/defrag extents within a certain range. 2011-05-25 15:17:12 +08:00
namei.c ocfs2: fix a tiny case that inode can not removed 2015-09-04 16:54:41 -07:00
namei.h ocfs2: fix a tiny race when truncate dio orohaned entry 2015-06-24 17:49:39 -07:00
ocfs1_fs_compat.h
…
ocfs2.h ocfs2: add errors=continue 2015-09-04 16:54:41 -07:00
ocfs2_fs.h treewide: fix typos in comment blocks 2015-08-07 14:46:24 +02:00
ocfs2_ioctl.h
…
ocfs2_lockid.h
…
ocfs2_lockingver.h
…
ocfs2_trace.h ocfs2: fix a tiny race when running dirop_fileop_racer 2014-06-23 16:47:45 -07:00
quota.h ocfs2: Move OLQF_CLEAN flag out of generic quota flags 2015-01-21 19:21:30 +01:00
quota_global.c ocfs2: Don't use MAXQUOTAS value 2014-09-17 11:59:12 +02:00
quota_local.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
refcounttree.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
refcounttree.h ocfs2: fix NULL pointer dereference in ocfs2_duplicate_clusters_by_page 2013-08-13 17:57:49 -07:00
reservations.c ocfs2: make resv_lock spinlock static 2015-02-10 14:30:29 -08:00
reservations.h
…
resize.c ocfs2: fix incorrect i_size of global bitmap inode after resize 2014-06-04 16:53:54 -07:00
resize.h
…
slot_map.c ocfs2: one function call less in ocfs2_init_slot_info() after error detection 2015-04-14 16:48:57 -07:00
slot_map.h
…
stack_o2cb.c ocfs2: avoid a pointless delay in o2cb_cluster_check() 2015-04-14 16:48:57 -07:00
stack_user.c char: make misc_deregister a void function 2015-08-05 10:35:49 -07:00
stackglue.c ocfs2: remove NULL assignments on static 2014-06-04 16:53:53 -07:00
stackglue.h ocfs2: pass ocfs2_cluster_connection to ocfs2_this_node 2014-01-21 16:19:41 -08:00
suballoc.c ocfs2: clean up redundant NULL checks before kfree 2015-09-04 16:54:41 -07:00
suballoc.h ocfs2: rollback alloc_dinode counts when ocfs2_block_group_set_bits() failed 2014-04-03 16:20:56 -07:00
super.c fs: create and use seq_show_option for escaping 2015-09-04 16:54:41 -07:00
super.h ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
symlink.c ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path 2013-02-26 02:46:12 -05:00
symlink.h ocfs: simplify symlink handling 2012-05-29 23:28:40 -04:00
sysfile.c ocfs2: avoid system inode ref confusion by adding mutex lock 2014-04-03 16:20:57 -07:00
sysfile.h
…
uptodate.c ocfs2: remove NULL assignments on static 2014-06-04 16:53:53 -07:00
uptodate.h
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xattr.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
xattr.h ocfs2: use generic posix ACL infrastructure 2014-01-25 23:58:21 -05:00