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8c0a853770
linux/fs/ext3
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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
..
acl.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
acl.h fs: take the ACL checks to common code 2011-07-25 14:30:23 -04:00
balloc.c ext3: use memweight() 2012-07-30 17:25:16 -07:00
bitmap.c ext3: use memweight() 2012-07-30 17:25:16 -07:00
dir.c ext3: pass custom EOF to generic_file_llseek_size() 2012-07-23 00:00:30 +04:00
ext3_jbd.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
ext3.h Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2012-05-25 08:14:59 -07:00
file.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
fsync.c ext3: Check return value of blkdev_issue_flush() 2012-07-09 23:40:46 +02:00
hash.c ext3: return 32/64-bit dir name hash according to usage type 2012-05-15 23:34:39 +02:00
ialloc.c ext3: remove max_debt in find_group_orlov() 2012-04-11 11:12:44 +02:00
inode.c ext3: Fix fdatasync() for files with only i_size changes 2012-09-04 00:04:43 +02:00
ioctl.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
Kconfig
Makefile
namei.c don't expose I_NEW inodes via dentry->d_inode 2012-07-23 00:00:58 +04:00
namei.h
resize.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
super.c fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
symlink.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
xattr_security.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
xattr_trusted.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
xattr_user.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
xattr.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
xattr.h