tree 35f10c2a8d2cd0e1aa9d33f7a4f55332c0733ee6
parent 9180706344487700b40da9eca5dedd3d11cb33b4
author Andrea Arcangeli <aarcange@redhat.com> 1294962393 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1294968759 -0800

thp: put_page: recheck PageHead after releasing the compound_lock

After releasing the compound_lock split_huge_page can still run and release the
page before put_page_testzero runs.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>