tree 84e0727cc1fec4c28f578d982d8ee511757aadbf
parent b3b3a99c5371e2e96a2c680e6ac20218bddbd422
author Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> 1429139597 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1429140917 -0700

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>