thp: fix MADV_DONTNEED vs clear soft dirty race
authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Thu, 13 Apr 2017 21:56:28 +0000 (14:56 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 14 Apr 2017 01:24:21 +0000 (18:24 -0700)
commit5b7abeae3af8c08c577e599dd0578b9e3ee6687b
treeebbc301c600e4b5ebc3b06e7959ba81117ca4044
parent58ceeb6bec86d9140f9d91d71a710e963523d063
thp: fix MADV_DONTNEED vs clear soft dirty race

Yet another instance of the same race.

Fix is identical to change_huge_pmd().

See "thp: fix MADV_DONTNEED vs.  numa balancing race" for more details.

Link: http://lkml.kernel.org/r/20170302151034.27829-5-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/proc/task_mmu.c