On 03/21/2018 07:48 AM, Jerome Glisse wrote: > On Tue, Mar 20, 2018 at 10:24:34PM -0700, John Hubbard wrote: >> On 03/19/2018 07:00 PM, jglisse@xxxxxxxxxx wrote: >>> From: Jérôme Glisse <jglisse@xxxxxxxxxx> >>> <snip> >> >> <snip> >> >>> @@ -438,7 +423,7 @@ static int hmm_vma_walk_pmd(pmd_t *pmdp, >>> pfns[i] = 0; >>> >>> if (pte_none(pte)) { >>> - pfns[i] = HMM_PFN_EMPTY; >>> + pfns[i] = 0; >> >> This works, but why not keep HMM_PFN_EMPTY, and just define it as zero? >> Symbols are better than raw numbers here. >> > > The last patch do that so i don't think it is worth respinning > just to make this intermediate state prettier. > Yes, you're right, of course. And, no other problems found, so: Reviewed-by: John Hubbard <jhubbard@xxxxxxxxxx> thanks, -- John Hubbard NVIDIA