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| author | Tejun Heo <tj@kernel.org> | 2012-04-01 12:09:55 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2012-04-01 12:09:55 -0700 |
| commit | 6bc103498f5fe512928496fc7802d639cc2d1d20 (patch) | |
| tree | 15a9628ff89b48889ab7cf81822d689e0173ca2b /mm/memcontrol.c | |
| parent | af36f906c0f4c2ffa0482ecdf856a33dc88ae8c5 (diff) | |
| download | lwn-6bc103498f5fe512928496fc7802d639cc2d1d20.tar.gz lwn-6bc103498f5fe512928496fc7802d639cc2d1d20.zip | |
cgroup: convert memcg controller to the new cftype interface
Convert memcg to use the new cftype based interface. kmem support
abuses ->populate() for mem_cgroup_sockets_init() so it can't be
removed at the moment.
tcp_memcontrol is updated so that tcp_files[] is registered via a
__initcall. This change also allows removing the forward declaration
of tcp_files[]. Removed.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Glauber Costa <glommer@parallels.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Greg Thelen <gthelen@google.com>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 97a45b392f77..bef114258bbd 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -4764,6 +4764,7 @@ static struct cftype mem_cgroup_files[] = { .read = mem_cgroup_read, }, #endif + { }, /* terminate */ }; static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *memcg, int node) @@ -5041,15 +5042,7 @@ static void mem_cgroup_destroy(struct cgroup *cont) static int mem_cgroup_populate(struct cgroup_subsys *ss, struct cgroup *cont) { - int ret; - - ret = cgroup_add_files(cont, ss, mem_cgroup_files, - ARRAY_SIZE(mem_cgroup_files)); - - if (!ret) - ret = register_kmem_files(cont, ss); - - return ret; + return register_kmem_files(cont, ss); } #ifdef CONFIG_MMU @@ -5639,6 +5632,7 @@ struct cgroup_subsys mem_cgroup_subsys = { .can_attach = mem_cgroup_can_attach, .cancel_attach = mem_cgroup_cancel_attach, .attach = mem_cgroup_move_task, + .base_cftypes = mem_cgroup_files, .early_init = 0, .use_id = 1, }; |