[PATCH 1/2] mm/hmm: support automatic NUMA balancing

Andrew Morton akpm at linux-foundation.org
Mon May 13 21:27:20 UTC 2019

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,

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