From: Xishi Qiu <qiuxishi@huawei.com>
Date: Wed, 11 Feb 2015 23:25:07 +0000 (-0800)
Subject: kmemcheck: move hook into __alloc_pages_nodemask() for the page allocator
X-Git-Tag: fixes-v4.0-rc1~131^2~74
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=23f086f962e67a1b8a508c0d8e86b7833c941564;p=pandora-kernel.git

kmemcheck: move hook into __alloc_pages_nodemask() for the page allocator

Now kmemcheck_pagealloc_alloc() is only called by __alloc_pages_slowpath().
__alloc_pages_nodemask()
	__alloc_pages_slowpath()
		kmemcheck_pagealloc_alloc()

And the page will not be tracked by kmemcheck in the following path.
__alloc_pages_nodemask()
	get_page_from_freelist()

So move kmemcheck_pagealloc_alloc() into __alloc_pages_nodemask(),
like this:
__alloc_pages_nodemask()
	...
	get_page_from_freelist()
	if (!page)
		__alloc_pages_slowpath()
	kmemcheck_pagealloc_alloc()
	...

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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