Xue jiufei ac4fef4d23 ocfs2/dlm: do not purge lockres that is queued for assert master ...

When workqueue is delayed, it may occur that a lockres is purged while it
is still queued for master assert.  it may trigger BUG() as follows.

N1                                         N2
dlm_get_lockres()
->dlm_do_master_requery
                                  is the master of lockres,
                                  so queue assert_master work

                                  dlm_thread() start running
                                  and purge the lockres

                                  dlm_assert_master_worker()
                                  send assert master message
                                  to other nodes
receiving the assert_master
message, set master to N2

dlmlock_remote() send create_lock message to N2, but receive DLM_IVLOCKID,
if it is RECOVERY lockres, it triggers the BUG().

Another BUG() is triggered when N3 become the new master and send
assert_master to N1, N1 will trigger the BUG() because owner doesn't
match.  So we should not purge lockres when it is queued for assert
master.

Signed-off-by: joyce.xue <xuejiufei@huawei.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>

2014-06-23 16:47:45 -07:00

..

9p

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

adfs

write_iter variants of {__,}generic_file_aio_write()

2014-05-06 17:38:00 -04:00

affs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

afs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

autofs4

fs/autofs4/dev-ioctl.c: add __init to autofs_dev_ioctl_init

2014-06-04 16:54:21 -07:00

befs

fs/befs: kernel-doc fixes

2014-06-06 16:08:09 -07:00

bfs

write_iter variants of {__,}generic_file_aio_write()

2014-05-06 17:38:00 -04:00

btrfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2014-06-21 14:21:43 -10:00

cachefiles

fs/cachefiles: replace kerror by pr_err

2014-06-06 16:08:14 -07:00

ceph

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2014-06-12 23:06:23 -07:00

cifs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

coda

coda: convert use of typedef ctl_table to struct ctl_table

2014-06-06 16:08:16 -07:00

configfs

fs/configfs: use pr_fmt

2014-06-04 16:53:53 -07:00

cramfs

Major changes for 3.14 include support for the newly added ZERO_RANGE

2014-04-04 15:39:39 -07:00

debugfs

Major changes for 3.14 include support for the newly added ZERO_RANGE

2014-04-04 15:39:39 -07:00

devpts

fs/devpts/inode.c: convert printk to pr_foo()

2014-06-06 16:08:14 -07:00

dlm

dlm: keep listening connection alive with sctp mode

2014-06-12 10:26:14 -05:00

ecryptfs

write_iter variants of {__,}generic_file_aio_write()

2014-05-06 17:38:00 -04:00

efivarfs

fs/efivarfs/super.c: use static const for dentry_operations

2014-06-04 16:54:14 -07:00

efs

fs/efs: convert printk(KERN_DEBUG to pr_debug

2014-06-04 16:54:21 -07:00

exofs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

exportfs

fs/exportfs/expfs.c: kernel-doc warning fixes

2014-06-04 16:54:14 -07:00

ext2

->splice_write() via ->write_iter()

2014-06-12 00:18:51 -04:00

ext3

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

ext4

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

f2fs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

fat

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

freevxfs

Major changes for 3.14 include support for the newly added ZERO_RANGE

2014-04-04 15:39:39 -07:00

fscache

fscache: convert use of typedef ctl_table to struct ctl_table

2014-06-06 16:08:16 -07:00

fuse

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

gfs2

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

hfs

write_iter variants of {__,}generic_file_aio_write()

2014-05-06 17:38:00 -04:00

hfsplus

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

hostfs

write_iter variants of {__,}generic_file_aio_write()

2014-05-06 17:38:00 -04:00

hpfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

hppfs

…

hugetlbfs

fs/hugetlbfs/inode.c: remove null test before kfree

2014-06-04 16:54:11 -07:00

isofs

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2014-04-07 17:59:17 -07:00

jbd

fs/jbd/revoke.c: replace shift loop by ilog2

2014-05-21 10:26:13 +02:00

jbd2

arch: Mass conversion of smp_mb__*()

2014-04-18 14:20:48 +02:00

jffs2

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

jfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

kernfs

kernfs: move the last knowledge of sysfs out from kernfs

2014-06-03 08:11:18 -07:00

lockd

Merge branch 'for-3.16' of git://linux-nfs.org/~bfields/linux

2014-06-10 11:50:57 -07:00

logfs

write_iter variants of {__,}generic_file_aio_write()

2014-05-06 17:38:00 -04:00

minix

write_iter variants of {__,}generic_file_aio_write()

2014-05-06 17:38:00 -04:00

ncpfs

fs/ncpfs/getopt.c: replace simple_strtoul by kstrtoul

2014-06-04 16:54:21 -07:00

nfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

nfs_common

…

nfsd

NFSD: fix bug for readdir of pseudofs

2014-06-17 16:42:48 -04:00

nilfs2

write_iter variants of {__,}generic_file_aio_write()

2014-05-06 17:38:00 -04:00

nls

nls: have register_nls() set ->owner

2014-01-25 03:14:05 -05:00

notify

inotify: convert use of typedef ctl_table to struct ctl_table

2014-06-06 16:08:16 -07:00

ntfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

ocfs2

ocfs2/dlm: do not purge lockres that is queued for assert master

2014-06-23 16:47:45 -07:00

omfs

write_iter variants of {__,}generic_file_aio_write()

2014-05-06 17:38:00 -04:00

openpromfs

fs: push sync_filesystem() down to the file system's remount_fs()

2014-03-13 10:14:33 -04:00

proc

Merge branch 'next' (accumulated 3.16 merge window patches) into master

2014-06-08 11:31:16 -07:00

pstore

fs/pstore: logging clean-up

2014-06-06 16:08:13 -07:00

qnx4

fs: push sync_filesystem() down to the file system's remount_fs()

2014-03-13 10:14:33 -04:00

qnx6

fs: push sync_filesystem() down to the file system's remount_fs()

2014-03-13 10:14:33 -04:00

quota

xfs: fix Q_XQUOTARM ioctl

2014-05-05 17:25:50 +10:00

ramfs

->splice_write() via ->write_iter()

2014-06-12 00:18:51 -04:00

reiserfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

romfs

switch simple generic_file_aio_read() users to ->read_iter()

2014-05-06 17:37:55 -04:00

squashfs

fs/squashfs/squashfs.h: replace pr_warning by pr_warn

2014-06-04 16:53:52 -07:00

sysfs

kernfs: move the last knowledge of sysfs out from kernfs

2014-06-03 08:11:18 -07:00

sysv

write_iter variants of {__,}generic_file_aio_write()

2014-05-06 17:38:00 -04:00

ubifs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

udf

udf: switch to ->write_iter()

2014-05-06 17:39:36 -04:00

ufs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

xfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

aio.c

Merge git://git.kvack.org/~bcrl/aio-next

2014-06-14 19:43:27 -05:00

anon_inodes.c

vfs: Allocate anon_inode_inode in anon_inode_init()

2014-03-27 09:52:54 -07:00

attr.c

fs,userns: Change inode_capable to capable_wrt_inode_uidgid

2014-06-10 13:57:22 -07:00

bad_inode.c

…

binfmt_aout.c

…

binfmt_elf_fdpic.c

…

binfmt_elf.c

Merge branch 'x86/vdso' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next

2014-06-05 08:05:29 -07:00

binfmt_em86.c

…

binfmt_flat.c

fs/binfmt_flat.c: make old_reloc() static

2014-06-04 16:54:21 -07:00

binfmt_misc.c

binfmt_misc: add missing 'break' statement

2014-04-03 16:21:16 -07:00

binfmt_script.c

…

binfmt_som.c

…

block_dev.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

buffer.c

mm: non-atomically mark page accessed during page cache allocation where possible

2014-06-04 16:54:10 -07:00

char_dev.c

…

compat_binfmt_elf.c

binfmt_elf: add ELF_HWCAP2 to compat auxv entries

2014-03-04 08:05:21 +00:00

compat_ioctl.c

fs/compat: convert to COMPAT_SYSCALL_DEFINE with changing parameter types

2014-03-06 16:30:44 +01:00

compat.c

locks: rename file-private locks to "open file description locks"

2014-04-22 08:23:58 -04:00

coredump.c

coredump: fix va_list corruption

2014-04-19 13:23:31 -07:00

dcache.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

dcookies.c

fs/compat: fix lookup_dcookie() parameter handling

2014-01-29 16:22:40 -08:00

direct-io.c

new helper: iov_iter_npages()

2014-05-06 17:32:52 -04:00

drop_caches.c

fs: convert use of typedef ctl_table to struct ctl_table

2014-06-06 16:08:16 -07:00

eventfd.c

eventfd_ctx_fdget(): use fdget() instead of fget()

2014-01-25 03:13:04 -05:00

eventpoll.c

epoll: fix use-after-free in eventpoll_release_file

2014-06-16 17:21:59 -10:00

exec.c

perf: Differentiate exec() and non-exec() comm events

2014-06-06 07:56:22 +02:00

fcntl.c

locks: rename file-private locks to "open file description locks"

2014-04-22 08:23:58 -04:00

fhandle.c

…

file_table.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-06-12 10:30:18 -07:00

file.c

fs/file.c: don't open-code kvfree()

2014-05-06 17:31:10 -04:00

filesystems.c

sys_sysfs: Add CONFIG_SYSFS_SYSCALL

2014-04-03 16:21:05 -07:00

fs_struct.c

…

fs-writeback.c

One of the main highlights this time, is not the patches themselves

2014-04-04 14:49:16 -07:00

inode.c

fs,userns: Change inode_capable to capable_wrt_inode_uidgid

2014-06-10 13:57:22 -07:00

internal.h

…

ioctl.c

…

Kconfig

kernfs: add CONFIG_KERNFS

2014-02-07 16:08:57 -08:00

Kconfig.binfmt

…

libfs.c

fs/libfs.c: add generic data flush to fsync

2014-06-04 16:53:55 -07:00

locks.c

locks: set fl_owner for leases back to current->files

2014-06-10 12:29:05 -04:00

Makefile

block: move ioprio.c from fs/ to block/

2014-05-19 11:02:18 -06:00

mbcache.c

ext4: each filesystem creates and uses its own mb_cache

2014-03-18 19:24:49 -04:00

mount.h

reduce m_start() cost...

2014-04-01 23:19:09 -04:00

mpage.c

fs/block_dev.c: add bdev_read_page() and bdev_write_page()

2014-06-04 16:54:02 -07:00

namei.c

fs,userns: Change inode_capable to capable_wrt_inode_uidgid

2014-06-10 13:57:22 -07:00

namespace.c

VFS: Make delayed_free() call free_vfsmnt()

2014-04-01 23:19:18 -04:00

no-block.c

…

open.c

new methods: ->read_iter() and ->write_iter()

2014-05-06 17:36:00 -04:00

pipe.c

new helper: copy_page_from_iter()

2014-05-06 17:39:42 -04:00

pnode.c

smarter propagate_mnt()

2014-04-01 23:19:08 -04:00

pnode.h

smarter propagate_mnt()

2014-04-01 23:19:08 -04:00

posix_acl.c

posix_acl: handle NULL ACL in posix_acl_equiv_mode

2014-05-06 13:58:42 -04:00

proc_namespace.c

reduce m_start() cost...

2014-04-01 23:19:09 -04:00

read_write.c

switch simple generic_file_aio_read() users to ->read_iter()

2014-05-06 17:37:55 -04:00

readdir.c

fanotify: create FAN_ACCESS event for readdir

2014-06-04 16:53:52 -07:00

select.c

…

seq_file.c

…

signalfd.c

…

splice.c

Merge commit '9f12600fe425bc28f0ccba034a77783c09c15af4' into for-linus

2014-06-12 00:28:09 -04:00

stack.c

…

stat.c

…

statfs.c

…

super.c

fs/superblock: avoid locking counting inodes and dentries before reclaiming them

2014-06-04 16:54:11 -07:00

sync.c

Revert "writeback: do not sync data dirtied after sync start"

2014-02-22 02:02:28 +01:00

timerfd.c

timerfd: support CLOCK_BOOTTIME clock

2014-01-23 16:57:40 -08:00

utimes.c

…

xattr.c

…