From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Date: Wed, 30 Jul 2014 23:08:28 +0000 (-0700)
Subject: hwpoison: fix hugetlbfs/thp precheck in hwpoison_user_mappings()
X-Git-Tag: cleanup-for-v3.18~169^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=93a9eb39fad1b5fc9077776caa3af207883b254d;p=pandora-kernel.git

hwpoison: fix hugetlbfs/thp precheck in hwpoison_user_mappings()

A recent fix from Chen Yucong, commit 0bc1f8b0682c ("hwpoison: fix the
handling path of the victimized page frame that belong to non-LRU")
rejects going into unmapping operation for hugetlbfs/thp pages, which
results in failing error containing on such pages.  This patch fixes it.

With this patch, hwpoison functional tests in mce-test testsuite pass.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Chen Yucong <slaoub@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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