[PATCH 1/2] mm/hmm: support automatic NUMA balancing
jglisse at redhat.com
Mon May 13 22:37:01 UTC 2019
On Mon, May 13, 2019 at 02:27:20PM -0700, Andrew Morton wrote:
> On Fri, 10 May 2019 19:53:23 +0000 "Kuehling, Felix" <Felix.Kuehling at amd.com> wrote:
> > From: Philip Yang <Philip.Yang at amd.com>
> > While the page is migrating by NUMA balancing, HMM failed to detect this
> > condition and still return the old page. Application will use the new
> > page migrated, but driver pass the old page physical address to GPU,
> > this crash the application later.
> > Use pte_protnone(pte) to return this condition and then hmm_vma_do_fault
> > will allocate new page.
> > Signed-off-by: Philip Yang <Philip.Yang at amd.com>
> This should have included your signed-off-by:, since you were on the
> patch delivery path. I'll make that change to my copy of the patch,
Yes it should have included that.
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