From: Hugh Dickins <hughd@google.com>
Date: Mon, 14 Mar 2011 08:08:47 +0000 (-0700)
Subject: thp+memcg-numa: fix BUG at include/linux/mm.h:370!
X-Git-Tag: v2.6.38~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2fbfac4e053861925fa3fffcdc327649b09af54c;p=pandora-kernel.git

thp+memcg-numa: fix BUG at include/linux/mm.h:370!

THP's collapse_huge_page() has an understandable but ugly difference
in when its huge page is allocated: inside if NUMA but outside if not.
It's hardly surprising that the memcg failure path forgot that, freeing
the page in the non-NUMA case, then hitting a VM_BUG_ON in get_page()
(or even worse, using the freed page).

Signed-off-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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