Messages in this thread Patch in this message | | | From | Wanpeng Li <> | Subject | [PATCH v3 3/4] memcg: optimize memcg_get_hierarchical_limit | Date | Mon, 25 Jun 2012 16:44:32 +0800 |
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From: Wanpeng Li <liwp@linux.vnet.ibm.com>
Optimize memcg_get_hierarchical_limit to save cpu cycle.
Signed-off-by: Wanpeng Li <liwp.linux@gmail.com> --- mm/memcontrol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 2e81328..4520b57 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3917,9 +3917,9 @@ static void memcg_get_hierarchical_limit(struct mem_cgroup *memcg, min_limit = res_counter_read_u64(&memcg->res, RES_LIMIT); min_memsw_limit = res_counter_read_u64(&memcg->memsw, RES_LIMIT); - cgroup = memcg->css.cgroup; if (!memcg->use_hierarchy) goto out; + cgroup = memcg->css.cgroup; while (cgroup->parent) { cgroup = cgroup->parent; -- 1.7.9.5
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