From: Johannes Weiner <hannes@cmpxchg.org>
To: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: vmscan: do not clear SHRINKER_NUMA_AWARE if nr_node_ids == 1
Date: Wed, 27 Jan 2016 13:52:18 -0500 [thread overview]
Message-ID: <20160127185218.GB31360@cmpxchg.org> (raw)
In-Reply-To: <1453913242-26722-1-git-send-email-vdavydov@virtuozzo.com>
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@virtuozzo.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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prev parent reply other threads:[~2016-01-27 18:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-27 16:47 Vladimir Davydov
2016-01-27 18:52 ` Johannes Weiner [this message]
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