diff options
| -rw-r--r-- | mm/slub.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/slub.c b/mm/slub.c index e7451861f95d..f620bbf4054a 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -224,7 +224,11 @@ static inline void memcg_propagate_slab_attrs(struct kmem_cache *s) { } static inline void stat(const struct kmem_cache *s, enum stat_item si) { #ifdef CONFIG_SLUB_STATS - __this_cpu_inc(s->cpu_slab->stat[si]); + /* + * The rmw is racy on a preemptible kernel but this is acceptable, so + * avoid this_cpu_add()'s irq-disable overhead. + */ + raw_cpu_inc(s->cpu_slab->stat[si]); #endif } |