linux-next

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History

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

compress.c

zisofs: Implement reading of compressed files when PAGE_CACHE_SIZE > compress block size

2009-12-10 15:02:49 +01:00

dir.c

isofs: Remove global fs lock

2011-07-22 19:42:12 -04:00

export.c

isofs: avoid info leak on export

2012-07-13 11:21:21 +02:00

inode.c

fs: push rcu_barrier() from deactivate_locked_super() to filesystems