powerpc/mm: Don't clear _PAGE_COHERENT when _PAGE_SAO is set

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The current low level hash code on LPAR configurations clears
_PAGE_COHERENT (M) when either _PAGE_GUARDED (G) or _PAGE_NO_CACHE (I)
is set. This conflicts with _PAGE_SAO which has M, I and W bits sets at
once (normally invalid combo) to indicate the new SAO attribute.

This changes the code to allow that case.

Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Dave Kleikamp 2008-07-08 00:28:55 +10:00 • committed by Benjamin Herrenschmidt

parent ef3d3246a0

commit 801eb73f45

1 changed files with 2 additions and 1 deletions

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arch/powerpc/platforms/pseries/lpar.c

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