kernel-ark/fs/fat
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
..
cache.c fat: Fix possible null deref in fat_cache_add() 2011-04-12 21:12:16 +09:00
dir.c fat: refactor shortname parsing 2012-07-30 17:25:20 -07:00
fat.h fat: accessors for msdos_dir_entry 'start' fields 2012-07-30 17:25:19 -07:00
fatent.c fat: switch to fsinfo_inode 2012-05-31 17:49:28 -07:00
file.c fat: Push mnt_want_write() outside of i_mutex 2012-07-31 01:02:50 +04:00
inode.c fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
Kconfig vfat: Note the NLS requirement 2009-04-17 09:32:11 -07:00
Makefile fat: move fs/vfat/* and fs/msdos/* to fs/fat 2008-11-06 15:41:20 -08:00
misc.c fat: Replace all printk with fat_msg() 2011-04-12 21:12:42 +09:00
namei_msdos.c fat: accessors for msdos_dir_entry 'start' fields 2012-07-30 17:25:19 -07:00
namei_vfat.c fat: accessors for msdos_dir_entry 'start' fields 2012-07-30 17:25:19 -07:00