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| author |   Nicholas Piggin <npiggin@gmail.com> | 2017-11-10 04:27:38 +1100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-11-13 23:35:06 +1100 |
| commit | 35602f82d0c765f991420e319c8d3a596c921eb8 (patch) | |
| tree | f8d5512981cebf04772e1a15030e3bae3599ee7e /arch/powerpc/mm/hugetlbpage-radix.c | |
| parent | powerpc/64s/hash: Fix fork() with 512TB process address space (diff) | |
| download | linux-dev-35602f82d0c765f991420e319c8d3a596c921eb8.tar.xz linux-dev-35602f82d0c765f991420e319c8d3a596c921eb8.zip | |
powerpc/64s/hash: Allow MAP_FIXED allocations to cross 128TB boundary
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: f4ea6dcb08ea ("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>
Diffstat (limited to 'arch/powerpc/mm/hugetlbpage-radix.c')
0 files changed, 0 insertions, 0 deletions