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SubjectRe: [RFC 4/4] mm, page_alloc: fix premature OOM when racing with cpuset mems update
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On Wednesday, January 18, 2017 6:16 AM Vlastimil Babka wrote:
>
> @@ -3802,13 +3811,8 @@ __alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order,
> * Also recalculate the starting point for the zonelist iterator or
> * we could end up iterating over non-eligible zones endlessly.
> */
Is the newly added comment still needed?

> - if (unlikely(ac.nodemask != nodemask)) {
> -no_zone:
> + if (unlikely(ac.nodemask != nodemask))
> ac.nodemask = nodemask;
> - ac.preferred_zoneref = first_zones_zonelist(ac.zonelist,
> - ac.high_zoneidx, ac.nodemask);
> - /* If we have NULL preferred zone, slowpath wll handle that */
> - }
>
> page = __alloc_pages_slowpath(alloc_mask, order, &ac);
>
> --
> 2.11.0

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