Re: [PATCH] mm: vmscan: do not clear SHRINKER_NUMA_AWARE if nr_node_ids == 1

[Johannes Weiner]

On Wed, Jan 27, 2016 at 07:47:22PM +0300, Vladimir Davydov wrote:
> Currently, on shrinker registration we clear SHRINKER_NUMA_AWARE if
> there's the only NUMA node present. The comment states that this will
> allow us to save some small loop time later. It used to be true when
> this code was added (see commit 1d3d4437eae1b ("vmscan: per-node
> deferred work")), but since commit 6b4f7799c6a57 ("mm: vmscan: invoke
> slab shrinkers from shrink_zone()") it doesn't make any difference.
> Anyway, running on non-NUMA machine shouldn't make a shrinker NUMA
> unaware, so zap this hunk.
> 
> Signed-off-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>

Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>