mm: memcontrol: fix cgroup creation failure after many small jobs

[cascardo/linux.git] / mm / slab_common.c

diff --git a/mm/slab_common.c b/mm/slab_common.c
index a65dad7..82317ab 100644 (file)
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -526,8 +526,8 @@ void memcg_create_kmem_cache(struct mem_cgroup *memcg,
                goto out_unlock;
 
        cgroup_name(css->cgroup, memcg_name_buf, sizeof(memcg_name_buf));
-       cache_name = kasprintf(GFP_KERNEL, "%s(%d:%s)", root_cache->name,
-                              css->id, memcg_name_buf);
+       cache_name = kasprintf(GFP_KERNEL, "%s(%llu:%s)", root_cache->name,
+                              css->serial_nr, memcg_name_buf);
        if (!cache_name)
                goto out_unlock;