From: Joe Perches <joe@perches.com>
Date: Wed, 11 Sep 2013 00:02:51 +0000 (-0700)
Subject: slab: Make allocations with GFP_ZERO slightly more efficient
X-Git-Tag: v3.15-rc1~3^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5087c8229986cc502c807a15f8ea416b0ef22346;p=pandora-kernel.git

slab: Make allocations with GFP_ZERO slightly more efficient

Use the likely mechanism already around valid
pointer tests to better choose when to memset
to 0 allocations with __GFP_ZERO

Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
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