From: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Date: Wed, 21 Mar 2012 23:34:14 +0000 (-0700)
Subject: hugetlb: remove prev_vma from hugetlb_get_unmapped_area_topdown()
X-Git-Tag: v3.4-rc1~158^2~30
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b69add218d32450d6604bc9080f6e33e19b06f5e;p=pandora-kernel.git

hugetlb: remove prev_vma from hugetlb_get_unmapped_area_topdown()

After looking up the vma which covers or follows the cached search
address, the following condition is always true:

	!prev_vma || (addr >= prev_vma->vm_end)

so we can stop checking the previous VMA altogether.

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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