tree 2bda472ac8825a0616ca8632fdc5623f4f8bb0fe
parent 8da00edc1069f01c34510fa405dc15d96c090a3f
author Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> 1333054697 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1333055203 -0700

pagemap: remove remaining unneeded spin_lock()

Commit 025c5b2451e4 ("thp: optimize away unnecessary page table
locking") moves spin_lock() into pmd_trans_huge_lock() in order to avoid
locking unless pmd is for thp.  So this spin_lock() is a bug.

Reported-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>