thp: add pmd mangling generic functions
Some are needed to build but not actually used on archs not supporting transparent hugepages. Others like pmdp_clear_flush are used by x86 too. 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>
parent
5f6e8da7
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