kernel_optimize_test/fs/ceph
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
..
addr.c ceph: Push file_update_time() into ceph_page_mkwrite() 2012-07-31 01:02:45 +04:00
caps.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2012-02-02 15:47:33 -08:00
ceph_frag.c
debugfs.c libceph: delay debugfs initialization until we learn global_id 2012-08-20 10:03:15 -07:00
dir.c ceph: simplify+fix atomic_open 2012-08-02 09:11:19 -07:00
export.c ceph: move encode_fh to new API 2012-05-29 23:28:33 -04:00
file.c ceph: simplify+fix atomic_open 2012-08-02 09:11:19 -07:00
inode.c ceph: don't abuse d_delete() on failure exits 2012-09-26 22:20:20 -04:00
ioctl.c ceph: avoid divide by zero in __validate_layout() 2012-08-21 15:55:28 -07:00
ioctl.h ceph: fully initialize new layout 2012-05-16 14:28:27 -05:00
Kconfig
locks.c
Makefile
mds_client.c ceph: close old con before reopening on mds reconnect 2012-07-30 18:15:32 -07:00
mds_client.h ceph: define ceph_auth_handshake type 2012-05-17 08:18:12 -05:00
mdsmap.c
snap.c ceph: define snap counts as u32 everywhere 2012-07-30 18:15:47 -07:00
strings.c
super.c fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
super.h ceph: simplify+fix atomic_open 2012-08-02 09:11:19 -07:00
xattr.c ceph: fix potential double free 2012-07-30 18:15:35 -07:00