powerpc/mm: Handle VM_FAULT_RETRY earlier

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In do_page_fault() if handle_mm_fault() returns VM_FAULT_RETRY, retry
the page fault handling before anything else.

This would simplify the handling of the mmap_sem lock in this part of
the code.

Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Laurent Dufour 2017-02-14 17:45:11 +01:00 • committed by Michael Ellerman

parent c2294e0ffe

commit 14c02e419a

1 changed files with 38 additions and 29 deletions

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arch/powerpc/mm/fault.c

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