thp: bail out gup_fast on splitting pmd

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Force gup_fast to take the slow path and block if the pmd is splitting,
not only if it's none.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
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 15:46:42 -08:00 • committed by Linus Torvalds

parent db3eb96f4e

commit 64cc6ae001

1 changed files with 12 additions and 1 deletions

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arch/x86/mm/gup.c

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