diff --git a/mm/internal.h b/mm/internal.h
index 3b79a5c9427a..bdac62e1eca7 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -157,11 +157,6 @@ extern void reclaim_throttle(pg_data_t *pgdat, enum vmscan_throttle_state reason
  */
 extern pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address);
 
-/*
- * in mm/memcontrol.c:
- */
-extern bool cgroup_memory_nokmem;
-
 /*
  * in mm/page_alloc.c
  */
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 3542237c833f..bfe9bdec192b 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -84,7 +84,7 @@ EXPORT_PER_CPU_SYMBOL_GPL(int_active_memcg);
 static bool cgroup_memory_nosocket __ro_after_init;
 
 /* Kernel memory accounting disabled? */
-bool cgroup_memory_nokmem __ro_after_init;
+static bool cgroup_memory_nokmem __ro_after_init;
 
 /* Whether the swap controller is active */
 #ifdef CONFIG_MEMCG_SWAP
diff --git a/mm/slab_common.c b/mm/slab_common.c
index f02c32bd05ab..1f75bd4e95d6 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -844,7 +844,7 @@ new_kmalloc_cache(int idx, enum kmalloc_cache_type type, slab_flags_t flags)
 	if (type == KMALLOC_RECLAIM) {
 		flags |= SLAB_RECLAIM_ACCOUNT;
 	} else if (IS_ENABLED(CONFIG_MEMCG_KMEM) && (type == KMALLOC_CGROUP)) {
-		if (cgroup_memory_nokmem) {
+		if (mem_cgroup_kmem_disabled()) {
 			kmalloc_caches[type][idx] = kmalloc_caches[KMALLOC_NORMAL][idx];
 			return;
 		}