From: Johannes Weiner <hannes-kernel@saeurebad.de>
Date: Sun, 7 Oct 2007 21:18:49 +0200
This exists as a patch in -mm for what seems like months.
I can't believe this one-liner hasn't been merged yet, it's
silly.
I was even chastised at one point for merging it into my net-2.6.24
tree :-)
-