tree 96f5954d7e72a2bf56f4165f4e7569364562f04f
parent 0a30c5cefa53cbac429dcb2de906c0637b646253
author Pekka Enberg <penberg@cs.helsinki.fi> 1231099248 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1231104800 -0800

fs: introduce bgl_lock_ptr()

As suggested by Andreas Dilger, introduce a bgl_lock_ptr() helper in
<linux/blockgroup_lock.h> and add separate sb_bgl_lock() helpers to
filesystem specific header files to break the hidden dependency to
struct ext[234]_sb_info.

Also, while at it, convert the macros to static inlines to try make up
for all the times I broke Andrew Morton's tree.

Acked-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>