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Kirill A. Shutemov 8c0a853770 fs: push rcu_barrier() from deactivate_locked_super() to filesystems 
There's no reason to call rcu_barrier() on every
deactivate_locked_super().  We only need to make sure that all delayed rcu
free inodes are flushed before we destroy related cache.

Removing rcu_barrier() from deactivate_locked_super() affects some fast
paths.  E.g.  on my machine exit_group() of a last process in IPC
namespace takes 0.07538s.  rcu_barrier() takes 0.05188s of that time.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-02 21:35:55 -04:00
..
9p
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
adfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
affs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
afs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
autofs4
make get_file() return its argument
2012-09-26 21:10:25 -04:00
befs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
bfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
btrfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
cachefiles
fs: cachefiles: add support for large files in filesystem caching
2012-07-30 17:25:21 -07:00
ceph
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
cifs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
coda
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
configfs
…
cramfs
…
debugfs
debugfs: fix u32_array race in format_array_alloc
2012-09-21 11:48:05 -07:00
devpts
…
dlm
…
ecryptfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
efs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
exofs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
exportfs
…
ext2
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
ext3
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
ext4
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
fat
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
freevxfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
fscache
…
fuse
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
gfs2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes
2012-09-14 18:05:14 -07:00
hfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
hfsplus
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
hostfs
…
hpfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
hppfs
…
hugetlbfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
isofs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
jbd
jbd: don't write superblock when unmounting an ro filesystem
2012-08-15 13:53:30 +02:00
jbd2
The following are all bug fixes and regressions. The most notable are
2012-08-17 08:04:47 -07:00
jffs2
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
jfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
lockd
close the race in nlmsvc_free_block()
2012-09-22 20:48:20 -04:00
logfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
minix
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
ncpfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
nfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
nfs_common
…
nfsd
make get_file() return its argument
2012-09-26 21:10:25 -04:00
nilfs2
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
nls
…
notify
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
ntfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
ocfs2
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
omfs
…
openpromfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
proc
proc_map_files_readdir(): don't bother with grabbing files
2012-09-26 21:10:26 -04:00
pstore
…
qnx4
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
qnx6
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
quota
quota: Move down dqptr_sem read after initializing default warn[] type at __dquot_alloc_space().
2012-08-15 00:22:57 +02:00
ramfs
…
reiserfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
romfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
squashfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
sysfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-08-01 10:26:23 -07:00
sysv
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
ubifs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
udf
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
ufs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
xfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
aio.c
…
anon_inodes.c
…
attr.c
…
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
coredump: prevent double-free on an error path in core dumper
2012-09-26 22:20:21 -04:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
…
binfmt_script.c
…
binfmt_som.c
…
bio-integrity.c
…
bio.c
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
2012-08-25 11:36:43 -07:00
block_dev.c
fs/block-dev.c:fix performance regression in O_DIRECT writes to md block devices
2012-08-02 09:50:39 +02:00
buffer.c
block: replace __getblk_slow misfix by grow_dev_page fix
2012-08-23 12:17:36 +02:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
compat.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
coredump.c
coredump: move core dump functionality into its own file
2012-10-02 21:35:55 -04:00
dcache.c
vfs: delete surplus inode NULL check
2012-09-26 22:20:19 -04:00
dcookies.c
…
direct-io.c
block: move down direct IO plugging
2012-08-09 15:23:09 +02:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
exec.c
coredump: move core dump functionality into its own file
2012-10-02 21:35:55 -04:00
fcntl.c
fcntl: fix misannotations
2012-09-26 22:20:20 -04:00
fhandle.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
fifo.c
…
file_table.c
take fget() and friends to fs/file.c
2012-09-26 21:08:56 -04:00
file.c
export fget_light
2012-09-26 21:10:06 -04:00
filesystems.c
…
fs_struct.c
…
fs-writeback.c
mm: prepare for removal of obsolete /proc/sys/vm/nr_pdflush_threads
2012-07-31 18:42:40 -07:00
generic_acl.c
…
inode.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-08-01 10:26:23 -07:00
internal.h
fs: Add freezing handling to mnt_want_write() / mnt_drop_write()
2012-07-31 09:40:38 +04:00
ioctl.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
ioprio.c
…
Kconfig
…
Kconfig.binfmt
…
libfs.c
…
locks.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
Makefile
coredump: move core dump functionality into its own file
2012-10-02 21:35:55 -04:00
mbcache.c
…
mount.h
…
mpage.c
…
namei.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
namespace.c
do_add_mount()/umount -l races
2012-09-22 20:48:18 -04:00
no-block.c
…
open.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
pipe.c
pipe(2) - race-free error recovery
2012-09-26 21:08:52 -04:00
pnode.c
…
pnode.h
…
posix_acl.c
…
proc_namespace.c
…
read_write.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
read_write.h
…
readdir.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
select.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
seq_file.c
…
signalfd.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
splice.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
stack.c
…
stat.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
statfs.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
super.c
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
sync.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
timerfd.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
utimes.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
xattr_acl.c
…
xattr.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00