From: Minchan Kim <minchan@kernel.org>
To: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@techsingularity.net>,
Hillf Danton <hillf.zj@alibaba-inc.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Vlastimil Babka <vbabka@suse.cz>,
Michal Hocko <mhocko@kernel.org>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Rik van Riel <riel@surriel.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: vmscan: fix memcg-aware shrinkers not called on global reclaim
Date: Tue, 2 Aug 2016 09:11:38 +0900 [thread overview]
Message-ID: <20160802001138.GB6770@bbox> (raw)
In-Reply-To: <1470056590-7177-1-git-send-email-vdavydov@virtuozzo.com>
On Mon, Aug 01, 2016 at 04:03:10PM +0300, Vladimir Davydov wrote:
> We must call shrink_slab() for each memory cgroup on both global and
> memcg reclaim in shrink_node_memcg(). Commit d71df22b55099 accidentally
> changed that so that now shrink_slab() is only called with memcg != NULL
> on memcg reclaim. As a result, memcg-aware shrinkers (including
> dentry/inode) are never invoked on global reclaim. Fix that.
>
> Fixes: d71df22b55099 ("mm, vmscan: begin reclaiming pages on a per-node basis")
> Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Minchan Kim <minchan@kernel.org>
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WARNING: multiple messages have this Message-ID (diff)
From: Minchan Kim <minchan@kernel.org>
To: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@techsingularity.net>,
Hillf Danton <hillf.zj@alibaba-inc.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Vlastimil Babka <vbabka@suse.cz>,
Michal Hocko <mhocko@kernel.org>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Rik van Riel <riel@surriel.com>, <linux-mm@kvack.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mm: vmscan: fix memcg-aware shrinkers not called on global reclaim
Date: Tue, 2 Aug 2016 09:11:38 +0900 [thread overview]
Message-ID: <20160802001138.GB6770@bbox> (raw)
In-Reply-To: <1470056590-7177-1-git-send-email-vdavydov@virtuozzo.com>
On Mon, Aug 01, 2016 at 04:03:10PM +0300, Vladimir Davydov wrote:
> We must call shrink_slab() for each memory cgroup on both global and
> memcg reclaim in shrink_node_memcg(). Commit d71df22b55099 accidentally
> changed that so that now shrink_slab() is only called with memcg != NULL
> on memcg reclaim. As a result, memcg-aware shrinkers (including
> dentry/inode) are never invoked on global reclaim. Fix that.
>
> Fixes: d71df22b55099 ("mm, vmscan: begin reclaiming pages on a per-node basis")
> Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Minchan Kim <minchan@kernel.org>
next prev parent reply other threads:[~2016-08-02 0:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-01 13:03 [PATCH] mm: vmscan: fix memcg-aware shrinkers not called on global reclaim Vladimir Davydov
2016-08-01 13:03 ` Vladimir Davydov
2016-08-01 13:18 ` Michal Hocko
2016-08-01 13:18 ` Michal Hocko
2016-08-01 13:21 ` Vladimir Davydov
2016-08-01 13:21 ` Vladimir Davydov
2016-08-01 13:27 ` Michal Hocko
2016-08-01 13:27 ` Michal Hocko
2016-08-01 15:15 ` Johannes Weiner
2016-08-01 15:15 ` Johannes Weiner
2016-08-02 0:11 ` Minchan Kim [this message]
2016-08-02 0:11 ` Minchan Kim
2016-08-02 9:32 ` Mel Gorman
2016-08-02 9:32 ` Mel Gorman
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