kernel_optimize_test/fs/coda
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 coda: use list_for_each_entry 2012-07-14 16:32:56 +04:00
cnode.c
coda_cache.h
coda_fs_i.h
coda_int.h
coda_linux.c
coda_linux.h
dir.c don't pass nameidata to ->create() 2012-07-14 16:34:47 +04:00
file.c
inode.c fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
Kconfig
Makefile
pioctl.c
psdev.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
symlink.c
sysctl.c
upcall.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00