alistair23-linux/fs/squashfs
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
..
block.c Squashfs: update comment removing reference to zlib only 2012-03-10 03:01:00 +00:00
cache.c Squashfs: optimise squashfs_cache_get entry search 2011-12-30 01:24:13 +00:00
decompressor.c
decompressor.h
dir.c Squashfs: fix f_pos check in get_dir_index_using_offset 2012-03-10 03:01:02 +00:00
export.c
file.c squashfs: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:25 +08:00
fragment.c
id.c
inode.c Squashfs: fix i_blocks calculation with extended regular files 2012-01-03 04:00:43 +00:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next 2011-11-04 16:48:37 -07:00
lzo_wrapper.c
Makefile
namei.c stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
squashfs.h
squashfs_fs.h Squashfs: get rid of obsolete definitions in header file 2012-03-10 03:01:01 +00:00
squashfs_fs_i.h
squashfs_fs_sb.h Squashfs: optimise squashfs_cache_get entry search 2011-12-30 01:24:13 +00:00
super.c fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
symlink.c squashfs: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:25 +08:00
xattr.c
xattr.h
xattr_id.c
xz_wrapper.c
zlib_wrapper.c