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
 }