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Date: Mon, 7 Jul 2014 16:00:05 +0400
From: Vladimir Davydov <vdavydov@...allels.com>
To: <akpm@...ux-foundation.org>
CC: <mhocko@...e.cz>, <hannes@...xchg.org>, <cl@...ux.com>,
<glommer@...il.com>, <linux-mm@...ck.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH -mm 0/8] memcg: reparent kmem on css offline
Hi,
This patch set introduces re-parenting of kmem charges on memcg css
offline. The idea lying behind it is very simple - instead of pointing
from kmem objects (kmem caches, non-slab kmem pages) directly to the
memcg which they are charged against, we make them point to a proxy
object, mem_cgroup_kmem_context, which, in turn, points to the memcg
which it belongs to. As a result on memcg offline, it's enough to only
re-parent the memcg's mem_cgroup_kmem_context.
Note, reparented kmem contexts will hang around until there is at least
one object accounted to them, but since they are small (especially
comparing to struct mem_cgroup), it's no big deal.
Reviews are appreciated.
Thanks,
Vladimir Davydov (8):
memcg: add pointer from memcg_cache_params to owner cache
memcg: keep all children of each root cache on a list
slab: guarantee unique kmem cache naming
slub: remove kmemcg id from create_unique_id
memcg: rework non-slab kmem pages charge path
memcg: introduce kmem context
memcg: move some kmem definitions upper
memcg: reparent kmem context on memcg offline
include/linux/memcontrol.h | 88 ++++-----
include/linux/mm_types.h | 6 +
include/linux/slab.h | 17 +-
mm/memcontrol.c | 468 +++++++++++++++++++++-----------------------
mm/page_alloc.c | 22 ++-
mm/slab.c | 40 ++--
mm/slab_common.c | 64 ++++--
mm/slub.c | 45 ++---
8 files changed, 382 insertions(+), 368 deletions(-)
--
1.7.10.4
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