From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 01:07:38 +0000 (+0900)
Subject: slab: change return type of kmem_getpages() to struct page
X-Git-Tag: v3.13-rc1~15^2~3^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c3aa83e00a9cd93f08e7aa42fba01924aa5f2fc;p=pandora-kernel.git

slab: change return type of kmem_getpages() to struct page

It is more understandable that kmem_getpages() return struct page.
And, with this, we can reduce one translation from virt addr to page and
makes better code than before. Below is a change of this patch.

* Before
   text	   data	    bss	    dec	    hex	filename
  22123	  23434	      4	  45561	   b1f9	mm/slab.o

* After
   text	   data	    bss	    dec	    hex	filename
  22074	  23434	      4	  45512	   b1c8	mm/slab.o

And this help following patch to remove struct slab's colouroff.

Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---

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