From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Date: Wed, 15 Apr 2015 23:13:17 +0000 (-0700)
Subject: mm/page-writeback: check-before-clear PageReclaim
X-Git-Tag: omap-for-v4.1/fixes-rc1~128^2~104
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a4bb3ecdc12a78dc4d0e690d40ec10887b640786;p=pandora-kernel.git

mm/page-writeback: check-before-clear PageReclaim

With the page flag sanitization patchset, an invalid usage of
ClearPageReclaim() is detected in set_page_dirty().  This can be called
from __unmap_hugepage_range(), so let's check PageReclaim() before trying
to clear it to avoid the misuse.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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