thp: compound_lock

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Add a new compound_lock() needed to serialize put_page against
__split_huge_page_refcount().

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

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Andrea Arcangeli 2011-01-13 15:46:32 -08:00 • committed by Linus Torvalds

parent a826e42242

commit e9da73d677

2 changed files with 45 additions and 1 deletions

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34

include/linux/mm.h

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12

include/linux/page-flags.h

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