kernel-ark/fs/qnx4
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
..
bitmap.c qnx4fs: use memweight() 2012-07-30 17:25:16 -07:00
dir.c BKL: remove BKL from qnx4 2010-10-21 18:48:04 +02:00
inode.c fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
Kconfig qnx4: remove write support 2009-09-23 07:39:30 -07:00
Makefile qnx4: remove write support 2009-09-23 07:39:30 -07:00
namei.c stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
qnx4.h stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
README

  This is a snapshot of the QNX4 filesystem for Linux.
  Please send diffs and remarks to <al@alarsen.net> .
  
Credits :

Richard "Scuba" A. Frowijn     <scuba@wxs.nl>
Frank "Jedi/Sector One" Denis  <j@pureftpd.org>
Anders Larsen                  <al@alarsen.net> (Maintainer)