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Re: [PATCH 1/4] mm, memory_hotplug: simplify empty node mask handling in new_node_page

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On 06/08/2017 09:45 AM, Michal Hocko wrote:
> From: Michal Hocko <mhocko@suse.com>
> 
> new_node_page tries to allocate the target page on a different NUMA node
> than the source page. This makes sense in most cases during the hotplug
> because we are likely to offline the whole numa node. But there are
> cases where there are no other nodes to fallback (e.g. when offlining
> parts of the only existing node) and we have to fallback to allocating
> from the source node. The current code does that but it can be
> simplified by checking the nmask and updating it before we even try to
> allocate rather than special casing it.
> 
> This patch shouldn't introduce any functional change.
> 
> Signed-off-by: Michal Hocko <mhocko@suse.com>

Acked-by: Vlastimil Babka <vbabka@suse.cz>

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[PATCH 1/4] mm, memory_hotplug: simplify empty node mask handling in new_node_page Michal Hocko <mhocko@kernel.org> - 2017-06-08 09:50 +0200
  Re: [PATCH 1/4] mm, memory_hotplug: simplify empty node mask handling  in new_node_page Vlastimil Babka <vbabka@suse.cz> - 2017-06-08 10:40 +0200

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