thp: madvise(MADV_HUGEPAGE)

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Add madvise MADV_HUGEPAGE to mark regions that are important to be
hugepage backed.  Return -EINVAL if the vma is not of an anonymous type,
or the feature isn't built into the kernel.  Never silently return
success.

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 15:46:55 -08:00 • committed by Linus Torvalds

parent f66055ab6f

commit 0af4e98b6b

3 changed files with 30 additions and 0 deletions

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include/linux/huge_mm.h

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