summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--include/linux/memcontrol.h6
-rw-r--r--mm/memcontrol.c6
2 files changed, 2 insertions, 10 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 28bf65560084..1f0f64fa3ccd 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -296,7 +296,6 @@ struct mem_cgroup {
int tcpmem_pressure;
#ifdef CONFIG_MEMCG_KMEM
- /* Index in the kmem_cache->memcg_params.memcg_caches array */
int kmemcg_id;
enum memcg_kmem_state kmem_state;
struct obj_cgroup __rcu *objcg;
@@ -1562,9 +1561,8 @@ static inline void memcg_kmem_uncharge(struct mem_cgroup *memcg,
}
/*
- * helper for accessing a memcg's index. It will be used as an index in the
- * child cache array in kmem_cache, and also to derive its name. This function
- * will return -1 when this is not a kmem-limited memcg.
+ * A helper for accessing memcg's kmem_id, used for getting
+ * corresponding LRU lists.
*/
static inline int memcg_cache_id(struct mem_cgroup *memcg)
{
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 758613277286..466d9aed6cc8 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3703,12 +3703,6 @@ static int memcg_online_kmem(struct mem_cgroup *memcg)
static_branch_enable(&memcg_kmem_enabled_key);
- /*
- * A memory cgroup is considered kmem-online as soon as it gets
- * kmemcg_id. Setting the id after enabling static branching will
- * guarantee no one starts accounting before all call sites are
- * patched.
- */
memcg->kmemcg_id = memcg_id;
memcg->kmem_state = KMEM_ONLINE;