powerpc/64s/hash: Fix 512T hint detection to use >= 128T

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Currently userspace is able to request mmap() search between 128T-512T
by specifying a hint address that is greater than 128T. But that means
a hint of 128T exactly will return an address below 128T, which is
confusing and wrong.

So fix the logic to check the hint is greater than *or equal* to 128T.

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

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This commit is contained in:

Michael Ellerman 2017-11-13 23:17:28 +11:00

parent f23ab3efb1

commit 7ece370996

1 changed files with 2 additions and 2 deletions

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arch/powerpc/mm/slice.c

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