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(parent: 3c6c8d2) | patch
pagemap: remove remaining unneeded spin_lock()
authorNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Thu, 29 Mar 2012 20:58:17 +0000 (13:58 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 29 Mar 2012 21:06:43 +0000 (14:06 -0700)
commit21ea3bee36c420a5f43ad6f937751896c9a40665
tree2bda472ac8825a0616ca8632fdc5623f4f8bb0fetree | snapshot
parent3c6c8d24086e2939c99e3fc67cadb35d102d86b3commit | diff
pagemap: remove remaining unneeded spin_lock()

Commit 041c58ea8c2d ("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>
fs/proc/task_mmu.c diff | blob | history
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