Junxiao Bi 9939834ccd ocfs2: fix journal commit deadlock ... commit 136f49b9171074872f2a14ad0ab10486d1ba13ca upstream. For buffer write, page lock will be got in write_begin and released in write_end, in ocfs2_write_end_nolock(), before it unlock the page in ocfs2_free_write_ctxt(), it calls ocfs2_run_deallocs(), this will ask for the read lock of journal->j_trans_barrier. Holding page lock and ask for journal->j_trans_barrier breaks the locking order. This will cause a deadlock with journal commit threads, ocfs2cmt will get write lock of journal->j_trans_barrier first, then it wakes up kjournald2 to do the commit work, at last it waits until done. To commit journal, kjournald2 needs flushing data first, it needs get the cache page lock. Since some ocfs2 cluster locks are holding by write process, this deadlock may hung the whole cluster. unlock pages before ocfs2_run_deallocs() can fix the locking order, also put unlock before ocfs2_commit_trans() to make page lock is unlocked before j_trans_barrier to preserve unlocking order. Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com> Reviewed-by: Wengang Wang <wen.gang.wang@oracle.com> Reviewed-by: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Zefan Li <lizefan@huawei.com>		2015-04-14 17:33:47 +08:00
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9p
adfs
affs
afs
autofs4	autofs - remove autofs dentry mount check	2013-05-11 13:48:06 -07:00
befs
bfs
btrfs	Btrfs: fix fs corruption on transaction abort if device supports discard	2015-04-14 17:33:45 +08:00
cachefiles	fs: cachefiles: add support for large files in filesystem caching	2014-06-07 16:02:04 -07:00
ceph	introduce SIZE_MAX	2014-07-31 12:54:53 -07:00
cifs	CIFS: Fix wrong directory attributes after rename	2014-09-25 11:49:11 +08:00
coda
configfs	configfs: fix race between dentry put and lookup	2013-11-29 10:50:37 -08:00
cramfs
debugfs	debugfs: debugfs_remove_recursive() must not rely on list_empty(d_subdirs)	2013-08-14 22:57:07 -07:00
devpts	devpts: plug the memory leak in kill_sb	2013-12-04 10:50:14 -08:00
dlm
ecryptfs	eCryptfs: Remove buggy and unnecessary write in file name decode routine	2015-04-14 17:33:43 +08:00
efs
exofs	ore: Fix wrong math in allocation of per device BIO	2014-02-13 11:51:11 -08:00
exportfs
ext2	ext2: Fix fs corruption in ext2_get_xip_mem()	2014-09-25 11:49:19 +08:00
ext3	ext3: Don't check quota format when there are no quota files	2015-02-02 17:05:00 +08:00
ext4	ext4: bail out from make_indexed_dir() on first error	2015-02-02 17:05:09 +08:00
fat	fat: fix possible overflow for fat_clusters	2013-06-07 12:49:12 -07:00
freevxfs
fscache	fs/fscache/stats.c: fix memory leak	2013-05-07 19:51:55 -07:00
fuse	fuse: hotfix truncate_pagecache() issue	2014-03-11 16:10:04 -07:00
gfs2	GFS2: Fix incorrect invalidation for DIO/buffered I/O	2014-01-08 09:42:12 -08:00
hfs
hfsplus	hfsplus: fix potential overflow in hfsplus_file_truncate()	2013-04-25 21:19:54 -07:00
hostfs
hpfs	hpfs: deadlock and race in directory lseek()	2014-02-13 11:51:18 -08:00
hppfs
hugetlbfs	hugetlbfs: fix mmap failure in unaligned size request	2013-05-19 10:54:48 -07:00
isofs	isofs: Fix infinite looping over CE entries	2015-04-14 17:33:47 +08:00
jbd	jbd: Fix lock ordering bug in journal_unmap_buffer()	2012-12-03 11:47:10 -08:00
jbd2	ext4/jbd2: don't wait (forever) for stale tid caused by wraparound	2014-03-11 16:10:05 -07:00
jffs2	jffs2: remove from wait queue after schedule()	2014-04-26 17:13:20 -07:00
jfs	jfs: fix error path in ialloc	2013-11-13 12:01:48 +09:00
lockd	lockd: Try to reconnect if statd has moved	2015-02-02 17:04:42 +08:00
logfs
minix
ncpfs	ncpfs: return proper error from NCP_IOC_SETROOT ioctl	2015-04-14 17:33:46 +08:00
nfs	NFSv4: Ensure that we remove NFSv4.0 delegations when state has expired	2015-02-02 17:05:20 +08:00
nfs_common
nfsd	nfsd: Fix slot wake up race in the nfsv4.1 callback code	2015-04-14 17:33:37 +08:00
nilfs2	nilfs2: fix data loss with mmap()	2014-12-01 18:02:38 +08:00
nls
notify	fanotify: enable close-on-exec on events' fd when requested in fanotify_init()	2015-02-02 17:04:49 +08:00
ntfs
ocfs2	ocfs2: fix journal commit deadlock	2015-04-14 17:33:47 +08:00
omfs
openpromfs
proc	genirq: Prevent proc race against freeing of irq descriptors	2015-04-14 17:33:46 +08:00
pstore	pstore: Avoid deadlock in panic and emergency-restart path	2013-03-04 06:06:43 +08:00
qnx4
qnx6
quota	quota: Fix race between dqput() and dquot_scan_active()	2014-03-11 16:10:02 -07:00
ramfs	fs: ramfs: file-nommu: add SetPageUptodate()	2012-07-16 09:04:45 -07:00
reiserfs	reiserfs: fix race in readdir	2014-05-06 07:51:44 -07:00
romfs
squashfs
sysfs	sysfs: fix use after free in case of concurrent read/write and readdir	2013-05-07 19:51:54 -07:00
sysv
ubifs	UBIFS: fix free log space calculation	2015-02-02 17:04:36 +08:00
udf	udf: avoid info leak on export	2013-03-28 12:12:27 -07:00
ufs
xfs	xfs: underflow bug in xfs_attrlist_by_handle()	2013-12-20 07:34:19 -08:00
aio.c	aio: fix possible invalid memory access when DEBUG is enabled	2013-05-01 09:41:03 -07:00
anon_inodes.c
attr.c	vfs: increment iversion when a file is truncated	2012-06-10 00:36:12 +09:00
bad_inode.c
binfmt_aout.c
binfmt_elf.c	coredump: prevent double-free on an error path in core dumper	2012-10-07 08:32:27 -07:00
binfmt_elf_fdpic.c
binfmt_em86.c	exec: use -ELOOP for max recursion depth	2013-03-28 12:12:28 -07:00
binfmt_flat.c
binfmt_misc.c	exec: use -ELOOP for max recursion depth	2013-03-28 12:12:28 -07:00
binfmt_script.c	exec: use -ELOOP for max recursion depth	2013-03-28 12:12:28 -07:00
binfmt_som.c
bio-integrity.c
bio.c	SCSI: sg: Fix user memory corruption when SG_IO is interrupted by a signal	2013-09-07 21:58:16 -07:00
block_dev.c	writeback: Fix periodic writeback after fs mount	2013-07-28 16:26:08 -07:00
buffer.c	vfs: fix data corruption when blocksize < pagesize for mmaped data	2015-02-02 17:04:52 +08:00
char_dev.c
compat.c	Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys	2013-03-14 11:29:51 -07:00
compat_binfmt_elf.c
compat_ioctl.c	fs/compat_ioctl.c: VIDEO_SET_SPU_PALETTE missing error check	2012-10-31 10:02:55 -07:00
dcache.c	Nest rename_lock inside vfsmount_lock	2013-11-29 10:50:33 -08:00
dcookies.c
direct-io.c	fs: Fix possible use-after-free with AIO	2013-03-04 06:06:41 +08:00
drop_caches.c
eventfd.c
eventpoll.c	epoll: prevent missed events on EPOLL_CTL_MOD	2013-01-17 08:50:54 -08:00
exec.c	exec/ptrace: fix get_dumpable() incorrect tests	2013-11-29 10:50:34 -08:00
fcntl.c
fhandle.c
fifo.c	fifo: Do not restart open() if it already found a partner	2012-07-19 08:58:56 -07:00
file.c	fs/file.c:fdtable: avoid triggering OOMs from alloc_fdmem	2014-02-22 10:32:45 -08:00
file_table.c
filesystems.c
fs-writeback.c	writeback: fix a subtle race condition in I_DIRTY clearing	2015-04-14 17:33:41 +08:00
fs_struct.c
generic_acl.c
inode.c	vfs: Revert spurious fix to spinning prevention in prune_icache_sb	2013-04-16 21:27:26 -07:00
internal.h
ioctl.c
ioprio.c	block: Fix computation of merged request priority	2015-02-02 17:05:17 +08:00
Kconfig
Kconfig.binfmt
libfs.c
locks.c	locks: allow __break_lease to sleep even when break_time is 0	2014-05-13 14:11:31 +02:00
Makefile
mbcache.c
mount.h
mpage.c
namei.c	don't bugger nd->seq on set_root_rcu() from follow_dotdot_rcu()	2014-12-01 18:02:31 +08:00
namespace.c	mnt: Prevent pivot_root from creating a loop in the mount tree	2015-02-02 17:04:50 +08:00
no-block.c
open.c	vfs: canonicalize create mode in build_open_flags()	2012-09-14 10:00:05 -07:00
pipe.c	vfs: fix pipe counter breakage	2013-03-14 11:29:51 -07:00
pnode.c	get rid of propagate_umount() mistakenly treating slaves as busy.	2014-12-01 18:02:21 +08:00
pnode.h
posix_acl.c	posix_acl: handle NULL ACL in posix_acl_equiv_mode	2014-06-07 16:02:02 -07:00
proc_namespace.c
read_write.c
read_write.h
readdir.c
select.c	posix_types.h: Cleanup stale __NFDBITS and related definitions	2012-08-09 08:31:39 -07:00
seq_file.c
signalfd.c
splice.c	tcp: fix MSG_SENDPAGE_NOTLAST logic	2013-01-11 09:07:14 -08:00
stack.c
stat.c	VFS: make vfs_fstat() use f[get|put]_light()	2014-06-07 16:02:04 -07:00
statfs.c	vfs: allow O_PATH file descriptors for fstatfs()	2013-10-22 09:02:25 +01:00
super.c	fs: Fix theoretical division by 0 in super_cache_scan().	2015-02-02 17:04:48 +08:00
sync.c
timerfd.c
utimes.c
xattr.c
xattr_acl.c