powerpc/mm/radix: Use ptep_get_and_clear_full when clearing pte for full mm

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This helps us to do some optimization for application exit case, where we can
skip the DD1 style pte update sequence.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Tested-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Aneesh Kumar K.V 2017-02-09 08:28:20 +05:30 • committed by Michael Ellerman

parent ca94573b9c

commit f4894b80b1

2 changed files with 39 additions and 1 deletions

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17

arch/powerpc/include/asm/book3s/64/pgtable.h

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23

arch/powerpc/include/asm/book3s/64/radix.h

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