Liu Bo b1a06a4b57 Btrfs: fix lockdep error in async commit ... Lockdep complains about btrfs's async commit: [ 2372.462171] [ BUG: bad unlock balance detected! ] [ 2372.462191] 3.12.0+ #32 Tainted: G W [ 2372.462209] ------------------------------------- [ 2372.462228] ceph-osd/14048 is trying to release lock (sb_internal) at: [ 2372.462275] [<ffffffffa022cb10>] btrfs_commit_transaction_async+0x1b0/0x2a0 [btrfs] [ 2372.462305] but there are no more locks to release! [ 2372.462324] [ 2372.462324] other info that might help us debug this: [ 2372.462349] no locks held by ceph-osd/14048. [ 2372.462367] [ 2372.462367] stack backtrace: [ 2372.462386] CPU: 2 PID: 14048 Comm: ceph-osd Tainted: G W 3.12.0+ #32 [ 2372.462414] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M., BIOS 080015 11/09/2011 [ 2372.462455] ffffffffa022cb10 ffff88007490fd28 ffffffff816f094a ffff8800378aa320 [ 2372.462491] ffff88007490fd50 ffffffff810adf4c ffff8800378aa320 ffff88009af97650 [ 2372.462526] ffffffffa022cb10 ffff88007490fd88 ffffffff810b01ee ffff8800898c0000 [ 2372.462562] Call Trace: [ 2372.462584] [<ffffffffa022cb10>] ? btrfs_commit_transaction_async+0x1b0/0x2a0 [btrfs] [ 2372.462619] [<ffffffff816f094a>] dump_stack+0x45/0x56 [ 2372.462642] [<ffffffff810adf4c>] print_unlock_imbalance_bug+0xec/0x100 [ 2372.462677] [<ffffffffa022cb10>] ? btrfs_commit_transaction_async+0x1b0/0x2a0 [btrfs] [ 2372.462710] [<ffffffff810b01ee>] lock_release+0x18e/0x210 [ 2372.462742] [<ffffffffa022cb36>] btrfs_commit_transaction_async+0x1d6/0x2a0 [btrfs] [ 2372.462783] [<ffffffffa025a7ce>] btrfs_ioctl_start_sync+0x3e/0xc0 [btrfs] [ 2372.462822] [<ffffffffa025f1d3>] btrfs_ioctl+0x4c3/0x1f70 [btrfs] [ 2372.462849] [<ffffffff812c0321>] ? avc_has_perm+0x121/0x1b0 [ 2372.462873] [<ffffffff812c0224>] ? avc_has_perm+0x24/0x1b0 [ 2372.462897] [<ffffffff8107ecc8>] ? sched_clock_cpu+0xa8/0x100 [ 2372.462922] [<ffffffff8117b145>] do_vfs_ioctl+0x2e5/0x4e0 [ 2372.462946] [<ffffffff812c19e6>] ? file_has_perm+0x86/0xa0 [ 2372.462969] [<ffffffff8117b3c1>] SyS_ioctl+0x81/0xa0 [ 2372.462991] [<ffffffff817045a4>] tracesys+0xdd/0xe2 ==================================================== It's because that we don't do the right thing when checking if it's ok to tell lockdep that we're trying to release the rwsem. If the trans handle's type is TRANS_ATTACH, we won't acquire the freeze rwsem, but as TRANS_ATTACH fits the check (trans < TRANS_JOIN_NOLOCK), we'll release the freeze rwsem, which makes lockdep complains a lot. Reported-by: Ma Jianpeng <majianpeng@gmail.com> Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>		2013-11-20 20:44:44 -05:00
..
9p	9p: don't forget to destroy inode cache if fscache registration fails	2013-09-17 22:31:01 -04:00
adfs	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
affs	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
afs	afs: dget_parent() can't return a negative dentry	2013-09-29 22:02:24 -04:00
autofs4	autofs4: close the races around autofs4_notify_daemon()	2013-09-16 19:16:38 -04:00
befs	[readdir] convert befs	2013-06-29 12:56:55 +04:00
bfs	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
btrfs	Btrfs: fix lockdep error in async commit	2013-11-20 20:44:44 -05:00
cachefiles	CacheFiles: Don't try to dump the index key if the cookie has been cleared	2013-09-20 15:15:43 -07:00
ceph	ceph: use d_invalidate() to invalidate aliases	2013-09-06 12:55:29 -07:00
cifs	cifs: ntstatus_to_dos_map[] is not terminated	2013-10-14 12:14:01 -05:00
coda	helper for reading ->d_count	2013-07-05 18:59:33 +04:00
configfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-14 11:42:26 -07:00
cramfs	[readdir] convert f2fs	2013-06-29 12:56:46 +04:00
debugfs	debugfs: debugfs_remove_recursive() must not rely on list_empty(d_subdirs)	2013-07-31 12:16:31 -04:00
devpts
dlm	dlm: remove signal blocking	2013-08-12 15:22:43 -05:00
ecryptfs	eCryptfs: fix 32 bit corruption issue	2013-10-24 12:36:30 -07:00
efivarfs	efivarfs: we can use simple_lookup() now	2013-07-14 17:48:35 +04:00
efs	efs: iget_locked() doesn't return an ERR_PTR()	2013-08-24 12:10:22 -04:00
exofs	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
exportfs	exportfs: don't assume that ->iterate() won't feed us too long entries	2013-09-07 19:54:55 -04:00
ext2	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
ext3	ext[34]: fix double put in tmpfile	2013-10-15 12:14:06 -04:00
ext4	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-10-16 17:18:18 -07:00
f2fs	f2fs: optimize gc for better performance	2013-09-05 13:50:32 +09:00
fat	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
freevxfs	[readdir] convert freevxfs	2013-06-29 12:56:53 +04:00
fscache	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2013-09-19 12:50:37 -05:00
fuse	fuse: no RCU mode in fuse_access()	2013-10-01 16:41:23 +02:00
gfs2	gfs2: set FILE_CREATED	2013-09-16 19:17:24 -04:00
hfs	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
hfsplus	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
hostfs	um: hostfs: Fix writeback	2013-09-07 10:38:29 +02:00
hpfs	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
hppfs	clean up scary strncpy(dst, src, strlen(src)) uses	2013-07-03 16:07:41 -07:00
hugetlbfs	cope with potentially long ->d_dname() output for shmem/hugetlb	2013-08-24 12:10:17 -04:00
isofs	isofs: Refuse RW mount of the filesystem instead of making it RO	2013-07-31 22:14:50 +02:00
jbd	jbd: use a single printk for jbd_debug()	2013-08-09 10:49:00 +02:00
jbd2	jbd2: Fix endian mixing problems in the checksumming code	2013-08-28 14:59:58 -04:00
jffs2	[readdir] convert jffs2	2013-06-29 12:56:47 +04:00
jfs	Just a patch to fix an oops in an error path.	2013-10-22 09:01:11 +01:00
lockd	LOCKD: Don't call utsname()->nodename from nlmclnt_setlockargs	2013-08-05 15:03:46 -04:00
logfs	Lots of bug fixes, cleanups and optimizations. In the bug fixes	2013-07-02 09:39:34 -07:00
minix	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
ncpfs	ncpfs: fix error return code in ncp_parse_options()	2013-07-09 10:33:25 -07:00
nfs	NFS: Give "flavor" an initial value to fix a compile warning	2013-09-29 16:03:34 -04:00
nfs_common
nfsd	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-09-12 15:01:38 -07:00
nilfs2	nilfs2: fix issue with race condition of competition between segments for dirty blocks	2013-09-30 14:31:02 -07:00
nls
notify	fsnotify: update comments concerning locking scheme	2013-07-09 10:33:20 -07:00
ntfs	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
ocfs2	ocfs2: needs ->d_lock to poke in ->d_parent->d_inode from ->d_revalidate()	2013-09-29 22:02:20 -04:00
omfs	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
openpromfs	[readdir] convert openpromfs	2013-06-29 12:56:32 +04:00
proc	procfs: call default get_unmapped_area on MMU-present architectures	2013-10-16 21:35:53 -07:00
pstore	pstore: Remove the messages related to compression failure	2013-09-16 09:28:29 -07:00
qnx4	[readdir] convert qnx4	2013-06-29 12:56:38 +04:00
qnx6	[readdir] convert qnx6	2013-06-29 12:56:39 +04:00
quota	fs: convert fs shrinkers to new scan/count API	2013-09-10 18:56:31 -04:00
ramfs	initmpfs: move rootfs code from fs/ramfs/ to init/	2013-09-11 15:59:37 -07:00
reiserfs	reiserfs: fix race with flush_used_journal_lists and flush_journal_list	2013-09-24 11:24:21 +02:00
romfs	[readdir] convert romfs	2013-06-29 12:56:29 +04:00
squashfs	Squashfs: add corruption check for type in squashfs_readdir()	2013-09-06 04:57:54 +01:00
sysfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-09-07 14:36:57 -07:00
sysv	sysv: Add forgotten superblock lock init for v7 fs	2013-09-29 22:02:02 -04:00
ubifs	Just one patch which fixes the power-cut recovery testing mode.	2013-09-16 15:36:55 -04:00
udf	udf: Fortify LVID loading	2013-09-24 11:23:33 +02:00
ufs	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
xfs	xfs: Use kmem_free() instead of free()	2013-10-04 13:56:12 -05:00
aio.c	aio: fix use-after-free in aio_migratepage	2013-09-26 20:34:51 -04:00
anon_inodes.c	fs/anon_inode: Introduce a new lib function anon_inode_getfile_private()	2013-07-16 09:32:17 -04:00
attr.c
bad_inode.c	[readdir] ->readdir() is gone	2013-06-29 12:57:04 +04:00
binfmt_aout.c	mm: remove free_area_cache	2013-07-10 18:11:34 -07:00
binfmt_elf.c	fs/binfmt_elf.c: prevent a coredump with a large vm_map_count from Oopsing	2013-09-30 14:31:01 -07:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
binfmt_som.c
bio-integrity.c	Merge branch 'for-3.12/core' of git://git.kernel.dk/linux-block	2013-09-22 15:00:11 -07:00
bio.c	block: Fix bio_copy_data()	2013-09-24 14:41:42 -07:00
block_dev.c	a trivial writeback fix	2013-09-13 23:06:40 -04:00
buffer.c	fs: buffer: move allocation failure loop into the allocator	2013-10-16 21:35:53 -07:00
char_dev.c
compat.c	[readdir] constify ->actor	2013-06-29 12:57:05 +04:00
compat_binfmt_elf.c
compat_ioctl.c	compat.c: LOOP_CLR_FD is taken care of in loop.c itself...	2013-06-29 12:46:44 +04:00
coredump.c	coredump: add new %P variable in core_pattern	2013-09-11 15:59:01 -07:00
coredump.h
dcache.c	vfs: decrapify dput(), fix cache behavior under normal load	2013-10-31 15:43:02 -07:00
dcookies.c
direct-io.c	direct-io: Use return from cmpxchg to decide of assignment happened	2013-09-09 10:47:42 -07:00
drop_caches.c	shrinker: add node awareness	2013-09-10 18:56:31 -04:00
eventfd.c
eventpoll.c	Revert "epoll: use freezable blocking call"	2013-10-30 15:27:53 +01:00
exec.c	exec: cleanup the error handling in search_binary_handler()	2013-09-11 15:59:09 -07:00
fcntl.c	vfs: add missing check for __O_TMPFILE in fcntl_init()	2013-08-05 18:25:32 +04:00
fhandle.c
file.c
file_table.c	nfsd regression since delayed fput()	2013-10-20 08:44:39 -04:00
filesystems.c
fs-writeback.c	a trivial writeback fix	2013-09-13 23:06:40 -04:00
fs_struct.c
generic_acl.c
inode.c	fs: convert inode and dentry shrinking to be node aware	2013-09-10 18:56:31 -04:00
internal.h	fs: convert inode and dentry shrinking to be node aware	2013-09-10 18:56:31 -04:00
ioctl.c
ioprio.c
Kconfig
Kconfig.binfmt
libfs.c	make simple_lookup() usable for filesystems that set ->s_d_op	2013-07-14 17:43:25 +04:00
locks.c	locks: move file_lock_list to a set of percpu hlist_heads and convert file_lock_lock to an lglock	2013-07-08 13:36:42 +04:00
Makefile
mbcache.c	fs: convert fs shrinkers to new scan/count API	2013-09-10 18:56:31 -04:00
mount.h
mpage.c
namei.c	fs/namei.c: fix new kernel-doc warning	2013-10-22 12:02:40 +01:00
namespace.c	initmpfs: move rootfs code from fs/ramfs/ to init/	2013-09-11 15:59:37 -07:00
no-block.c
open.c	vfs: improve i_op->atomic_open() documentation	2013-09-16 19:17:24 -04:00
pipe.c	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
pnode.c	vfs: Fix invalid ida_remove() call	2013-05-31 15:16:33 -04:00
pnode.h	vfs: Don't copy mount bind mounts of /proc/<pid>/ns/mnt between namespaces	2013-08-26 18:42:15 -07:00
posix_acl.c
proc_namespace.c
read_write.c	aio: Kill aio_rw_vect_retry()	2013-07-30 11:53:12 -04:00
readdir.c	[readdir] constify ->actor	2013-06-29 12:57:05 +04:00
select.c	Revert "select: use freezable blocking call"	2013-10-30 15:28:35 +01:00
seq_file.c	seq_file: always update file->f_pos in seq_lseek()	2013-10-25 10:46:40 -04:00
signalfd.c
splice.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
stack.c
stat.c	quota: provide interface for readding allocated space into reserved space	2013-08-17 09:32:32 -04:00
statfs.c	vfs: allow O_PATH file descriptors for fstatfs()	2013-10-12 13:12:31 -07:00
super.c	fs/super.c: fix lru_list leak for real	2013-10-01 13:11:21 -04:00
sync.c
timerfd.c	timerfd: Add alarm timers	2013-05-29 12:57:34 -07:00
utimes.c
xattr.c
xattr_acl.c