powerpc/64s/hash: Allow MAP_FIXED allocations to cross 128TB boundary

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While mapping hints with a length that cross 128TB are disallowed,
MAP_FIXED allocations that cross 128TB are allowed. These are failing
on hash (on radix they succeed). Add an additional case for fixed
mappings to expand the addr_limit when crossing 128TB.

Fixes: f4ea6dcb08 ("powerpc/mm: Enable mappings above 128TB")
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Nicholas Piggin 2017-11-10 04:27:38 +11:00 • committed by Michael Ellerman

parent effc1b2508

commit 35602f82d0

1 changed files with 1 additions and 1 deletions

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arch/powerpc/mm/slice.c

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