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-rw-r--r--mm/slab_common.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 0873bcc61c7a..1a1cc89acaa3 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -549,10 +549,13 @@ void memcg_deactivate_kmem_caches(struct mem_cgroup *memcg)
{
int idx;
struct memcg_cache_array *arr;
- struct kmem_cache *s;
+ struct kmem_cache *s, *c;
idx = memcg_cache_id(memcg);
+ get_online_cpus();
+ get_online_mems();
+
mutex_lock(&slab_mutex);
list_for_each_entry(s, &slab_caches, list) {
if (!is_root_cache(s))
@@ -560,9 +563,17 @@ void memcg_deactivate_kmem_caches(struct mem_cgroup *memcg)
arr = rcu_dereference_protected(s->memcg_params.memcg_caches,
lockdep_is_held(&slab_mutex));
+ c = arr->entries[idx];
+ if (!c)
+ continue;
+
+ __kmem_cache_shrink(c, true);
arr->entries[idx] = NULL;
}
mutex_unlock(&slab_mutex);
+
+ put_online_mems();
+ put_online_cpus();
}
void memcg_destroy_kmem_caches(struct mem_cgroup *memcg)
@@ -649,7 +660,7 @@ int kmem_cache_shrink(struct kmem_cache *cachep)
get_online_cpus();
get_online_mems();
- ret = __kmem_cache_shrink(cachep);
+ ret = __kmem_cache_shrink(cachep, false);
put_online_mems();
put_online_cpus();
return ret;