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8c0a853770
linux/fs/qnx6
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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
..
dir.c fs: initial qnx6fs addition 2012-03-20 21:29:38 -04:00
inode.c fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
Kconfig fs: initial qnx6fs addition 2012-03-20 21:29:38 -04:00
Makefile fs: initial qnx6fs addition 2012-03-20 21:29:38 -04:00
namei.c stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
qnx6.h stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
README fs: initial qnx6fs addition 2012-03-20 21:29:38 -04:00
super_mmi.c fs: initial qnx6fs addition 2012-03-20 21:29:38 -04:00

README 

  This is a snapshot of the QNX6 filesystem for Linux.
  Please send diffs and remarks to <chaosman@ontika.net> .

Credits :

Al Viro		<viro@ZenIV.linux.org.uk> (endless patience with me & support ;))
Kai Bankett	<chaosman@ontika.net> (Maintainer)