linux-kernel - [PATCH 0/5] mm: workingset: make shadow node shrinker memcg aware

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Date:	Sun, 7 Feb 2016 20:27:30 +0300
From:	Vladimir Davydov <vdavydov@...tuozzo.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...nel.org>, <linux-mm@...ck.org>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH 0/5] mm: workingset: make shadow node shrinker memcg aware

Hi,

Workingset code was recently made memcg aware, but shadow node shrinker
is still global. As a result, one small cgroup can consume all memory
available for shadow nodes, possibly hurting other cgroups by reclaiming
their shadow nodes, even though reclaim distances stored in its shadow
nodes have no effect. To avoid this, we need to make shadow node
shrinker memcg aware.

The actual work is done in patch 5 of the series. Patches 1 and 2
prepare memcg/shrinker infrastructure for the change. Patch 3 is just a
collateral cleanup. Patch 4 makes radix_tree_node accounted, which is
necessary for making shadow node shrinker memcg aware.

Thanks,

Vladimir Davydov (5):
  mm: memcontrol: enable kmem accounting for all cgroups in the legacy
    hierarchy
  mm: vmscan: pass root_mem_cgroup instead of NULL to memcg aware
    shrinker
  mm: memcontrol: zap memcg_kmem_online helper
  radix-tree: account radix_tree_node to memory cgroup
  mm: workingset: make shadow node shrinker memcg aware

 include/linux/memcontrol.h | 20 +++++++++----------
 lib/radix-tree.c           | 16 +++++++++++++---
 mm/memcontrol.c            | 48 ++++++++--------------------------------------
 mm/slab_common.c           |  2 +-
 mm/vmscan.c                | 15 ++++++++++-----
 mm/workingset.c            | 11 ++++++++---
 6 files changed, 50 insertions(+), 62 deletions(-)

-- 
2.1.4