powerpc/mm: Move page fault VMA access checks to a helper

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Benjamin Herrenschmidt 2017-07-19 14:49:43 +10:00 • committed by Michael Ellerman
commit bd0d63f809