zonelist_policy() forgot to mask non-zone bits from gfp when comparing
zone number with policy_zone. 
ACKed-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NAl Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>