thp: fix MADV_DONTNEED vs clear soft dirty race

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commit 5b7abeae3a upstream.

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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Kirill A. Shutemov 2017-04-13 14:56:28 -07:00 • committed by Greg Kroah-Hartman

parent f584803c49

commit 5c9d083202

1 changed files with 8 additions and 1 deletions

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fs/proc/task_mmu.c

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