Jeff Mahoney a1457c0ce9 reiserfs: fix deadlock with nfs racing on create/lookup ... Reiserfs is currently able to be deadlocked by having two NFS clients where one has removed and recreated a file and another is accessing the file with an open file handle. If one client deletes and recreates a file with timing such that the recreated file obtains the same [dirid, objectid] pair as the original file while another client accesses the file via file handle, the create and lookup can race and deadlock if the lookup manages to create the in-memory inode first. The create thread, in insert_inode_locked4, will hold the write lock while waiting on the other inode to be unlocked. The lookup thread, anywhere in the iget path, will release and reacquire the write lock while it schedules. If it needs to reacquire the lock while the create thread has it, it will never be able to make forward progress because it needs to reacquire the lock before ultimately unlocking the inode. This patch drops the write lock across the insert_inode_locked4 call so that the ordering of inode_wait -> write lock is retained. Since this would have been the case before the BKL push-down, this is safe. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>		2013-05-31 23:14:20 +02:00
..
9p	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
adfs	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
affs	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
afs	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
autofs4	autofs - remove autofs dentry mount check	2013-05-06 13:06:59 -07:00
befs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2013-04-30 09:36:50 -07:00
bfs	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
btrfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2013-05-18 11:35:28 -07:00
cachefiles	lift sb_start_write() out of ->write()	2013-04-09 14:12:56 -04:00
ceph	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
cifs	cifs: fix composing of mount options for DFS referrals	2013-05-24 13:08:31 -05:00
coda	lift sb_start_write() out of ->write()	2013-04-09 14:12:56 -04:00
configfs	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
cramfs	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
debugfs	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
devpts	fs: Limit sys_mount to only request filesystem modules (Part 2).	2013-03-07 01:08:55 -08:00
dlm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-05-01 14:08:52 -07:00
ecryptfs	Improve performance when AES-NI (and most likely other crypto accelerators) is	2013-05-10 09:20:01 -07:00
efivarfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
efs	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
exofs	block: Add bio_for_each_segment_all()	2013-03-23 14:26:28 -07:00
exportfs	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
ext2	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
ext3	Merge branch 'akpm' (incoming from Andrew)	2013-05-07 20:49:51 -07:00
ext4	Fixed regressions (two stability regressions and a performance	2013-05-14 09:30:54 -07:00
f2fs	f2fs updates for v3.10	2013-05-08 15:11:48 -07:00
fat	fat: fix possible overflow for fat_clusters	2013-05-24 16:22:50 -07:00
freevxfs	fs: Readd the fs module aliases.	2013-03-12 18:55:21 -07:00
fscache	fs/fscache/stats.c: fix memory leak	2013-04-29 15:54:27 -07:00
fuse	Merge branch 'akpm' (incoming from Andrew)	2013-05-07 20:49:51 -07:00
gfs2	GFS2: Fix typo in gfs2_log_end_write loop	2013-05-24 13:48:09 +01:00
hfs	hfs: avoid crash in hfs_bnode_create	2013-05-24 16:22:51 -07:00
hfsplus	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
hostfs	hostfs: use kmalloc instead of kzalloc	2013-05-04 15:48:45 -04:00
hpfs	hpfs: move setting hpfs-private i_dirty to ->write_end()	2013-04-09 14:12:55 -04:00
hppfs	hppfs: get rid of ->fsync()	2013-04-29 15:41:42 -04:00
hugetlbfs	hugetlbfs: fix mmap failure in unaligned size request	2013-05-07 18:38:27 -07:00
isofs	fs: Readd the fs module aliases.	2013-03-12 18:55:21 -07:00
jbd	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2013-05-03 09:56:25 -07:00
jbd2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
jffs2	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
jfs	Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block	2013-05-08 10:13:35 -07:00
lockd	LOCKD: Ensure that nlmclnt_block resets block->b_status after a server reboot	2013-04-21 18:08:42 -04:00
logfs	block: Remove bi_idx references	2013-03-23 14:15:31 -07:00
minix	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
ncpfs	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
nfs	NFS: Fix SETCLIENTID fallback if GSS is not available	2013-05-23 18:50:40 -04:00
nfs_common	nfs_common: Update the translation between nfsv3 acls linux posix acls	2013-02-13 06:15:14 -08:00
nfsd	Merge branch 'for-3.10' of git://linux-nfs.org/~bfields/linux	2013-05-10 09:28:55 -07:00
nilfs2	nilfs2: fix issue of nilfs_set_page_dirty() for page at EOF boundary	2013-05-24 16:22:52 -07:00
nls
notify	unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE	2013-05-09 13:46:38 -04:00
ntfs	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
ocfs2	ocfs2: goto out_unlock if ocfs2_get_clusters_nocache() failed in ocfs2_fiemap()	2013-05-24 16:22:52 -07:00
omfs	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
openpromfs	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
proc	Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux	2013-05-07 08:42:20 -07:00
pstore	Couple of pstore cleanups	2013-05-09 16:42:10 -07:00
qnx4	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
qnx6	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
quota	quota: add missing use of dq_data_lock in __dquot_initialize	2013-03-11 22:05:56 +01:00
ramfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-02-26 20:16:07 -08:00
reiserfs	reiserfs: fix deadlock with nfs racing on create/lookup	2013-05-31 23:14:20 +02:00
romfs	romfs: fix nommu map length to keep inside filesystem	2013-04-29 09:17:57 +10:00
squashfs	fs: Limit sys_mount to only request filesystem modules. (Part 3)	2013-03-11 07:09:48 -07:00
sysfs	sysfs: check if one entry has been removed before freeing	2013-04-05 15:35:52 -07:00
sysv	fs: Readd the fs module aliases.	2013-03-12 18:55:21 -07:00
ubifs	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
udf	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
ufs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2013-04-30 09:36:50 -07:00
xfs	xfs: remote attribute lookups require the value length	2013-05-24 16:31:20 -05:00
aio.c	aio: fix kioctx not being freed after cancellation at exit time	2013-05-24 16:22:53 -07:00
anon_inodes.c	get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero	2013-02-26 02:46:11 -05:00
attr.c
bad_inode.c	lseek: the "whence" argument is called "whence"	2012-12-17 17:15:12 -08:00
binfmt_aout.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
binfmt_elf.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2013-05-02 10:16:16 -07:00
binfmt_elf_fdpic.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2013-05-02 10:16:16 -07:00
binfmt_em86.c	exec: use -ELOOP for max recursion depth	2012-12-17 17:15:23 -08:00
binfmt_flat.c	new helper: read_code()	2013-04-29 15:40:23 -04:00
binfmt_misc.c	binfmt_misc: reuse string_unescape_inplace()	2013-04-30 17:04:03 -07:00
binfmt_script.c	exec: do not leave bprm->interp on stack	2012-12-20 17:40:19 -08:00
binfmt_som.c	get rid of pt_regs argument of ->load_binary()	2012-11-28 21:53:38 -05:00
bio-integrity.c	bio-integrity: Add explicit field for owner of bip_buf	2013-03-23 14:26:34 -07:00
bio.c	Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block	2013-05-08 10:13:35 -07:00
block_dev.c	Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block	2013-05-08 10:13:35 -07:00
buffer.c	Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block	2013-05-08 10:13:35 -07:00
char_dev.c
compat.c	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
compat_binfmt_elf.c
compat_ioctl.c	Removed unused typedef to avoid "unused local typedef" warnings.	2013-05-04 15:03:05 -04:00
coredump.c	do_coredump(): don't wait for thaw if coredump has already been interrupted	2013-05-04 14:45:54 -04:00
coredump.h
dcache.c	vfs: use list_move instead of list_del/list_add	2013-05-04 15:43:02 -04:00
dcookies.c	consolidate compat lookup_dcookie()	2013-03-03 23:00:23 -05:00
direct-io.c	Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block	2013-05-08 10:13:35 -07:00
drop_caches.c
eventfd.c	fs, eventfd: add procfs fdinfo helper	2012-12-17 17:15:27 -08:00
eventpoll.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2013-05-01 07:21:43 -07:00
exec.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
fcntl.c	new helper: file_inode(file)	2013-02-22 23:31:31 -05:00
fhandle.c	Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux	2012-12-20 14:04:11 -08:00
file.c	don't bother with deferred freeing of fdtables	2013-05-01 17:31:42 -04:00
file_table.c	cache the value of file_inode() in struct file	2013-03-01 19:48:30 -05:00
filesystems.c	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
fs-writeback.c	Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block	2013-05-08 10:13:35 -07:00
fs_struct.c	constify path_get/path_put and fs_struct.c stuff	2013-03-01 23:51:07 -05:00
generic_acl.c
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
internal.h	pipe: fold file_operations instances in one	2013-04-09 14:12:58 -04:00
ioctl.c	new helper: file_inode(file)	2013-02-22 23:31:31 -05:00
ioprio.c
Kconfig	efivarfs: Move to fs/efivarfs	2013-04-17 13:25:09 +01:00
Kconfig.binfmt	fs: make binfmt support for #! scripts modular and removable	2013-04-30 17:04:04 -07:00
libfs.c	vfs: drop vmtruncate	2012-12-20 18:46:29 -05:00
locks.c	new helper: file_inode(file)	2013-02-22 23:31:31 -05:00
Makefile	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
mbcache.c
mount.h	get rid of full-hash scan on detaching vfsmounts	2013-04-09 14:12:52 -04:00
mpage.c
namei.c	Merge git://git.infradead.org/users/eparis/audit	2013-05-11 14:29:11 -07:00
namespace.c	create_mnt_ns: unidiomatic use of list_add()	2013-05-04 15:18:53 -04:00
no-block.c
open.c	make SYSCALL_DEFINE<n>-generated wrappers do asmlinkage_protect	2013-03-03 22:58:33 -05:00
pipe.c	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
pnode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
pnode.h	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
posix_acl.c
proc_namespace.c
read_write.c	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
readdir.c	new helper: file_inode(file)	2013-02-22 23:31:31 -05:00
select.c	sched/rt: Move rt specific bits into new header file	2013-02-07 20:51:08 +01:00
seq_file.c	new helper: single_open_size()	2013-04-09 14:13:29 -04:00
signalfd.c	switch signalfd{,4}() to COMPAT_SYSCALL_DEFINE	2013-03-03 22:58:46 -05:00
splice.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
stack.c
stat.c	switch vfs_getattr() to struct path	2013-02-26 02:46:08 -05:00
statfs.c	vfs: fix user_statfs to retry once on ESTALE errors	2012-12-20 18:50:07 -05:00
super.c	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
sync.c	teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long	2013-03-03 22:46:22 -05:00
timerfd.c	compat: restore timerfd settime and gettime compat syscalls	2013-03-02 09:35:13 -05:00
utimes.c	vfs: allow utimensat() calls to retry once on an ESTALE error	2012-12-20 18:50:08 -05:00
xattr.c	vfs: make lremovexattr retry once on ESTALE error	2012-12-20 18:50:11 -05:00
xattr_acl.c