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authorVladimir Davydov <vdavydov@virtuozzo.com>2016-03-17 14:19:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-17 15:09:34 -0700
commitd334c9bcb4aebd0c3e89ee415cba86fa5f0253ee (patch)
tree0ddb7517729213fb575873b743a039f7da2af6d3 /mm
parente33e33b4d1c699d06fb8ccd6da80b309b84ec975 (diff)
mm: memcontrol: cleanup css_reset callback
- Do not take memcg_limit_mutex for resetting limits - the cgroup cannot be altered from userspace anymore, so no need to protect them. - Use plain page_counter_limit() for resetting ->memory and ->memsw limits instead of mem_cgrouop_resize_* helpers - we enlarge the limits, so no need in special handling. - Reset ->swap and ->tcpmem limits as well. Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/memcontrol.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ae8b81c55685..8615b066b642 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4257,9 +4257,11 @@ static void mem_cgroup_css_reset(struct cgroup_subsys_state *css)
{
struct mem_cgroup *memcg = mem_cgroup_from_css(css);
- mem_cgroup_resize_limit(memcg, PAGE_COUNTER_MAX);
- mem_cgroup_resize_memsw_limit(memcg, PAGE_COUNTER_MAX);
- memcg_update_kmem_limit(memcg, PAGE_COUNTER_MAX);
+ page_counter_limit(&memcg->memory, PAGE_COUNTER_MAX);
+ page_counter_limit(&memcg->swap, PAGE_COUNTER_MAX);
+ page_counter_limit(&memcg->memsw, PAGE_COUNTER_MAX);
+ page_counter_limit(&memcg->kmem, PAGE_COUNTER_MAX);
+ page_counter_limit(&memcg->tcpmem, PAGE_COUNTER_MAX);
memcg->low = 0;
memcg->high = PAGE_COUNTER_MAX;
memcg->soft_limit = PAGE_COUNTER_MAX;