On 12/05/2013 01:38 PM, Aneesh Kumar K.V wrote:
From: "Aneesh Kumar K.V" <aneesh.ku...@linux.vnet.ibm.com>
change_prot_numa should work even if _PAGE_NUMA != _PAGE_PROTNONE.
On archs like ppc64 that don't use _PAGE_PROTNONE and also have
a separate page table outside linux pagetable, we just need to
make sure that when calling change_prot_numa we flush the
hardware page table entry so that next page access result in a numa
fault.
We still need to make sure we use the numa faulting logic only
when CONFIG_NUMA_BALANCING is set. This implies the migrate-on-fault
(Lazy migration) via mbind will only work if CONFIG_NUMA_BALANCING
is set.
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
Reviewed-by: Rik van Riel <r...@redhat.com>
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