powerpc/mm: Only check for _PAGE_PRESENT in set_pte/pmd functions

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We want to make sure we don't use these function when updating a pte
or pmd entry that have a valid hpte entry, because these functions
don't invalidate them. So limit the check to _PAGE_PRESENT bit.
Numafault core changes use these functions for updating _PAGE_NUMA bits.
That should be ok because when _PAGE_NUMA is set we can be sure that
hpte entries are not present.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Aneesh Kumar K.V 2013-11-18 14:58:12 +05:30 • committed by Benjamin Herrenschmidt

parent c8c06f5a0d

commit 8937ba48dc

2 changed files with 2 additions and 2 deletions

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arch/powerpc/mm/pgtable.c

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2

arch/powerpc/mm/pgtable_64.c

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