[PATCH 2/2] powerpc/mm/autonuma: Switch ppc64 to its own implementeation of saved write

Michael Ellerman mpe at ellerman.id.au
Tue Feb 14 22:01:43 AEDT 2017

Michael Neuling <mikey at neuling.org> writes:

> On Thu, 2017-02-09 at 08:30 +0530, Aneesh Kumar K.V wrote:
>> With this our protnone becomes a present pte with READ/WRITE/EXEC bit cleared.
>> By default we also set _PAGE_PRIVILEGED on such pte. This is now used to help
>> us identify a protnone pte that as saved write bit. For such pte, we will
>> clear
>> the _PAGE_PRIVILEGED bit. The pte still remain non-accessible from both user
>> and kernel.
>> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.vnet.ibm.com>
> FWIW I've tested this, so:
> Acked-By: Michael Neuling <mikey at neuling.org>

In future if you've tested something then "Tested-by:" is the right tag
to use.


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