- Add soothing comment

- uninline thrice-called function

Cc: OGAWA Hirofumi <hogawa@miraclelinux.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>