diff options
Diffstat (limited to 'mm/slab.c')
| -rw-r--r-- | mm/slab.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/mm/slab.c b/mm/slab.c index 65b5dcb6f671..7894017bc160 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3708,8 +3708,7 @@ static int do_tune_cpucache(struct kmem_cache *cachep, int limit, int batchcount, int shared, gfp_t gfp) { int ret; - struct kmem_cache *c = NULL; - int i = 0; + struct kmem_cache *c; ret = __do_tune_cpucache(cachep, limit, batchcount, shared, gfp); @@ -3719,12 +3718,10 @@ static int do_tune_cpucache(struct kmem_cache *cachep, int limit, if ((ret < 0) || !is_root_cache(cachep)) return ret; - VM_BUG_ON(!mutex_is_locked(&slab_mutex)); - for_each_memcg_cache_index(i) { - c = cache_from_memcg_idx(cachep, i); - if (c) - /* return value determined by the parent cache only */ - __do_tune_cpucache(c, limit, batchcount, shared, gfp); + lockdep_assert_held(&slab_mutex); + for_each_memcg_cache(c, cachep) { + /* return value determined by the root cache only */ + __do_tune_cpucache(c, limit, batchcount, shared, gfp); } return ret; |