piaojun 309e91911d ocfs2/dlm: solve a BUG when deref failed in dlm_drop_lockres_ref ... We found a BUG situation that lockres is migrated during deref described below. To solve the BUG, we could purge lockres directly when other node says I did not have a ref. Additionally, we'd better purge lockres if master goes down, as no one will response deref done. Node 1 Node 2(old master) Node3(new master) dlm_purge_lockres send deref to N2 leave domain migrate lockres to N3 finish migration send do assert master to N1 receive do assert msg form N3, but can not find lockres because DROPPING_REF is set, so the owner is still N2. receive deref from N1 and response -EINVAL because lockres is migrated BUG when receive -EINVAL in dlm_drop_lockres_ref Fixes: 842b90b624 ("ocfs2/dlm: return in progress if master can not clear the refmap bit right now") Link: http://lkml.kernel.org/r/57845103.3070406@huawei.com Signed-off-by: Jun Piao <piaojun@huawei.com> Reviewed-by: Joseph Qi <joseph.qi@huawei.com> Reviewed-by: Jiufei Xue <xuejiufei@huawei.com> Reviewed-by: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-08-02 17:31:41 -04:00
..
9p	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-07-29 15:54:19 -07:00
adfs	vfs: make the string hashes salt the hash	2016-06-10 20:21:46 -07:00
affs	vfs: make the string hashes salt the hash	2016-06-10 20:21:46 -07:00
afs	rxrpc: Limit the listening backlog	2016-06-10 18:14:47 -07:00
autofs4	Merge branch 'salted-string-hash'	2016-07-28 12:26:31 -07:00
befs	fs/befs/io.c:befs_bread(): remove unneeded initialization to NULL	2016-05-23 17:04:14 -07:00
bfs	more trivial ->iterate_shared conversions	2016-05-09 11:41:14 -04:00
btrfs	Merge branch 'for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2016-07-31 21:27:32 -04:00
cachefiles	Merge branch 'd_real' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into work.misc	2016-06-30 23:34:49 -04:00
ceph	Merge branch 'salted-string-hash'	2016-07-28 12:26:31 -07:00
cifs	Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6	2016-07-29 11:29:13 -07:00
coda	drop redundant ->owner initializations	2016-05-29 19:08:00 -04:00
configfs	configfs: don't set buffer_needs_fill to zero if show() returns error	2016-07-10 21:02:18 +09:00
cramfs	more trivial ->iterate_shared conversions	2016-05-09 11:41:14 -04:00
crypto	block, fs, mm, drivers: use bio set/get op accessors	2016-06-07 13:41:38 -06:00
debugfs	Merge branch 'd_real' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into work.misc	2016-06-30 23:34:49 -04:00
devpts	userns: Remove the now unnecessary FS_USERNS_DEV_MOUNT flag	2016-06-23 15:47:31 -05:00
dlm	dlm: Use kmemdup instead of kmalloc and memcpy	2016-06-23 11:55:58 -05:00
ecryptfs	ecryptfs: don't allow mmap when the lower fs doesn't support it	2016-07-08 10:35:28 -05:00
efivarfs	vfs: make the string hashes salt the hash	2016-06-10 20:21:46 -07:00
efs	fs/efs/super.c: fix return value	2016-05-20 17:58:30 -07:00
exofs	block, fs, mm, drivers: use bio set/get op accessors	2016-06-07 13:41:38 -06:00
exportfs	introduce a parallel variant of ->iterate()	2016-05-02 19:49:29 -04:00
ext2	Merge branch 'akpm' (patches from Andrew)	2016-07-26 19:55:54 -07:00
ext4	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
f2fs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
fat	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2016-07-28 14:22:25 -07:00
freevxfs	freevxfs: update Kconfig information	2016-06-13 10:20:39 +02:00
fscache	Merge branch 'd_real' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into work.misc	2016-06-30 23:34:49 -04:00
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse	2016-07-29 12:29:15 -07:00
gfs2	Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block	2016-07-26 15:37:51 -07:00
hfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
hfsplus	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
hostfs	hostfs: switch to ->iterate_shared()	2016-05-12 19:49:30 -04:00
hpfs	vfs: make the string hashes salt the hash	2016-06-10 20:21:46 -07:00
hugetlbfs	mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage	2016-04-04 10:41:08 -07:00
isofs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
jbd2	The major change this cycle is deleting ext4's copy of the file system	2016-07-26 18:35:55 -07:00
jffs2	vfs: make the string hashes salt the hash	2016-06-10 20:21:46 -07:00
jfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
kernfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-07-29 15:54:19 -07:00
lockd	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
logfs	Merge branch 'salted-string-hash'	2016-07-28 12:26:31 -07:00
minix	simple local filesystems: switch to ->iterate_shared()	2016-05-02 19:49:32 -04:00
ncpfs	vfs: make the string hashes salt the hash	2016-06-10 20:21:46 -07:00
nfs	NFS client updates for Linux 4.8	2016-07-30 16:33:25 -07:00
nfs_common
nfsd	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-07-29 15:54:19 -07:00
nilfs2	Merge branch 'for-4.8/core' of git://git.kernel.dk/linux-block	2016-07-26 15:03:07 -07:00
nls
notify	fsnotify: avoid spurious EMFILE errors from inotify_init()	2016-05-19 19:12:14 -07:00
ntfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
ocfs2	ocfs2/dlm: solve a BUG when deref failed in dlm_drop_lockres_ref	2016-08-02 17:31:41 -04:00
omfs	more trivial ->iterate_shared conversions	2016-05-09 11:41:14 -04:00
openpromfs	more trivial ->iterate_shared conversions	2016-05-09 11:41:14 -04:00
orangefs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
overlayfs	ovl: simplify empty checking	2016-07-29 12:05:25 +02:00
proc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-07-29 15:54:19 -07:00
pstore	pstore/ram: add Device Tree bindings	2016-06-14 11:34:39 -07:00
qnx4	more trivial ->iterate_shared conversions	2016-05-09 11:41:14 -04:00
qnx6	more trivial ->iterate_shared conversions	2016-05-09 11:41:14 -04:00
quota	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-07-29 15:54:19 -07:00
ramfs	tmpfs/ramfs: fix VM_MAYSHARE mappings for NOMMU	2016-05-20 17:58:30 -07:00
reiserfs	Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block	2016-07-26 15:37:51 -07:00
romfs	romfs, squashfs: switch to ->iterate_shared()	2016-05-09 11:41:15 -04:00
squashfs	fs: have ll_rw_block users pass in op and flags separately	2016-06-07 13:41:38 -06:00
sysfs	kernfs: The cgroup filesystem also benefits from SB_I_NOEXEC	2016-06-23 15:41:56 -05:00
sysv	vfs: make the string hashes salt the hash	2016-06-10 20:21:46 -07:00
tracefs	tracefs: ->d_parent is never NULL or negative...	2016-05-29 16:22:07 -04:00
ubifs	UBIFS: Implement ->migratepage()	2016-06-23 00:29:53 +02:00
udf	Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block	2016-07-26 15:37:51 -07:00
ufs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
xfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
aio.c	aio: make aio_setup_ring killable	2016-05-23 17:04:14 -07:00
anon_inodes.c
attr.c	vfs: Don't modify inodes with a uid or gid unknown to the vfs	2016-07-05 15:06:46 -05:00
bad_inode.c	switch ->setxattr() to passing dentry and inode separately	2016-05-27 20:09:16 -04:00
binfmt_aout.c	fs: fix binfmt_aout.c build error	2016-05-28 16:34:59 -07:00
binfmt_elf_fdpic.c	coredump: fix dumping through pipes	2016-06-07 22:07:09 -04:00
binfmt_elf.c	coredump: fix dumping through pipes	2016-06-07 22:07:09 -04:00
binfmt_em86.c
binfmt_flat.c	remove lots of IS_ERR_VALUE abuses	2016-05-27 15:26:11 -07:00
binfmt_misc.c	binfmt_misc: ->s_root is not going anywhere	2016-05-29 19:14:03 -04:00
binfmt_script.c
block_dev.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-07-29 15:54:19 -07:00
buffer.c	xfs: update for 4.8-rc1	2016-07-27 09:53:35 -07:00
char_dev.c	chardev: add missing line break in pr_warn	2016-07-14 16:21:53 +09:00
compat_binfmt_elf.c
compat_ioctl.c	[media] cec: add compat32 ioctl support	2016-06-28 10:00:13 -03:00
compat.c	Fix a number of bugs, most notably a potential stale data exposure	2016-05-24 12:55:26 -07:00
coredump.c	coredump: fix dumping through pipes	2016-06-07 22:07:09 -04:00
dax.c	libnvdimm for 4.8	2016-07-28 17:38:16 -07:00
dcache.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
dcookies.c
direct-io.c	direct-io: use bio set/get op accessors	2016-06-07 13:41:38 -06:00
drop_caches.c
eventfd.c	eventfd: document lockless access in eventfd_poll	2016-03-22 15:36:02 -07:00
eventpoll.c	fs: poll/select/recvmmsg: use timespec64 for timeout events	2016-05-19 19:12:14 -07:00
exec.c	fs: Treat foreign mounts as nosuid	2016-06-24 10:40:41 -05:00
fcntl.c	fcntl: allow to set O_DIRECT flag on pipe	2016-01-09 02:55:37 -05:00
fhandle.c	fs/coredump: prevent fsuid=0 dumps into user-controlled directories	2016-03-22 15:36:02 -07:00
file_table.c
file.c	give readdir(2)/getdents(2)/etc. uniform exclusion with lseek()	2016-05-02 19:49:28 -04:00
filesystems.c	find_filesystem(): simplify comparison	2016-01-19 12:02:23 -05:00
fs_pin.c
fs_struct.c
fs-writeback.c	mm: move most file-based accounting to the node	2016-07-28 16:07:41 -07:00
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-07-29 15:54:19 -07:00
internal.h	xfs: update for 4.8-rc1	2016-07-27 09:53:35 -07:00
ioctl.c	vfs: ioctl: prevent double-fetch in dedupe ioctl	2016-07-28 15:23:12 -07:00
iomap.c	fs: iomap based fiemap implementation	2016-06-21 09:38:45 +10:00
Kconfig	fs: introduce iomap infrastructure	2016-06-21 09:23:11 +10:00
Kconfig.binfmt	ELF/MIPS build fix	2016-05-23 17:04:14 -07:00
libfs.c	lockless next_positive()	2016-06-20 17:11:29 -04:00
locks.c	locks: use file_inode()	2016-07-01 10:24:18 -04:00
Makefile	fs: introduce iomap infrastructure	2016-06-21 09:23:11 +10:00
mbcache.c	mbcache: add reusable flag to cache entries	2016-02-22 22:44:04 -05:00
mount.h
mpage.c	Merge branch 'akpm' (patches from Andrew)	2016-07-26 19:55:54 -07:00
namei.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-07-29 15:54:19 -07:00
namespace.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-07-29 15:54:19 -07:00
no-block.c
nsfs.c
open.c	vfs: merge .d_select_inode() into .d_real()	2016-06-30 08:53:27 +02:00
pipe.c	pipe: account to kmemcg	2016-07-26 16:19:19 -07:00
pnode.c	propogate_mnt: Handle the first propogated copy being a slave	2016-05-05 09:54:45 -05:00
pnode.h
posix_acl.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-07-29 15:54:19 -07:00
proc_namespace.c	vfs: show_vfsstat: do not ignore errors from show_devname method	2016-03-16 13:09:08 -04:00
read_write.c	x86/syscalls: Add compat_sys_preadv64v2/compat_sys_pwritev64v2	2016-07-15 10:30:26 +02:00
readdir.c	restore killability of old mutex_lock_killable(&inode->i_mutex) users	2016-05-26 00:13:25 -04:00
select.c	fs: poll/select/recvmmsg: use timespec64 for timeout events	2016-05-19 19:12:14 -07:00
seq_file.c	Make file credentials available to the seqfile interfaces	2016-04-14 12:56:09 -07:00
signalfd.c
splice.c	Merge branch 'ovl-fixes' into for-linus	2016-05-11 00:00:29 -04:00
stack.c
stat.c	fs/stat.c: drop the last new_valid_dev check	2016-01-16 11:17:23 -08:00
statfs.c
super.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-07-29 15:54:19 -07:00
sync.c	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00
timerfd.c	timerfd: Reject ALARM timerfds without CAP_WAKE_ALARM	2016-06-09 23:42:38 +02:00
userfaultfd.c	mm: introduce fault_env	2016-07-26 16:19:19 -07:00
utimes.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
xattr.c	vfs: Don't modify inodes with a uid or gid unknown to the vfs	2016-07-05 15:06:46 -05:00