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8c0a853770
linux/fs/ncpfs
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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 don't pass nameidata to ->create() 2012-07-14 16:34:47 +04:00
file.c fs: introduce inode operation ->update_time 2012-06-01 12:07:25 -04:00
getopt.c fs/ncpfs/getopt.c: cleanup keneldoc 2009-01-06 15:59:19 -08:00
getopt.h
inode.c fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
ioctl.c vfs: mnt_drop_write_file() 2012-01-03 22:52:40 -05:00
Kconfig fs/Kconfig: move the rest of ncpfs out 2009-01-22 13:16:01 +03:00
Makefile fs: change to new flag variable 2011-03-17 14:02:57 +01:00
mmap.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ncp_fs_i.h move internal-only parts of ncpfs headers to fs/ncpfs 2011-01-12 20:03:43 -05:00
ncp_fs_sb.h get rid of idiotic misplaced __kernel_mode_t in ncfps kernel-private data structure 2012-05-29 23:28:42 -04:00
ncp_fs.h move internal-only parts of ncpfs headers to fs/ncpfs 2011-01-12 20:03:43 -05:00
ncplib_kernel.c move internal-only parts of ncpfs headers to fs/ncpfs 2011-01-12 20:03:43 -05:00
ncplib_kernel.h ncpfs: propagate umode_t 2012-01-03 22:55:05 -05:00
ncpsign_kernel.c move internal-only parts of ncpfs headers to fs/ncpfs 2011-01-12 20:03:43 -05:00
ncpsign_kernel.h move internal-only parts of ncpfs headers to fs/ncpfs 2011-01-12 20:03:43 -05:00
sock.c move internal-only parts of ncpfs headers to fs/ncpfs 2011-01-12 20:03:43 -05:00
symlink.c ncpfs: propagate umode_t 2012-01-03 22:55:05 -05:00