Messages in this thread | | | Subject | Re: [PATCH 1/4] mm, memory_hotplug: simplify empty node mask handling in new_node_page | From | Vlastimil Babka <> | Date | Thu, 8 Jun 2017 10:15:16 +0200 |
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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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