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2d4b95f060
Suppress split ptlock on arches which may use one page for multiple page tables. Reconsider what better to do (particularly on ppc64) later on. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>