On Thu, 2017-02-09 at 02:58:19 UTC, "Aneesh Kumar K.V" wrote: > In the kernel we do follow the below sequence in different code paths. > pte = ptep_get_clear(ptep) > .... > set_pte_at(ptep, pte) > > We do that for mremap, autonuma protection update and softdirty clearing. This > implies our optimization to skip a tlb flush when clearing a pte update is > not valid, because for DD1 system that followup set_pte_at will be done witout > doing the required tlbflush. Fix that by always doing the dd1 style pte update > irrespective of new_pte value. In a later patch we will optimize the > application > exit case. > > Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org> > Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com> > Tested-by: Michael Neuling <mi...@neuling.org>
Series applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/ca94573b9c69d224e50e1084a27767 cheers
