Merge tag 'powerpc-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
[linux-2.6-block.git] / block / bfq-wf2q.c
index c9ba225081ceef58d5d36a569541af689526c7fd..05f0bf4a1144d79fc26e0024221907f1066182c5 100644 (file)
@@ -744,6 +744,8 @@ __bfq_entity_update_weight_prio(struct bfq_service_tree *old_st,
                }
 #endif
 
+               /* Matches the smp_wmb() in bfq_group_set_weight. */
+               smp_rmb();
                old_st->wsum -= entity->weight;
 
                if (entity->new_weight != entity->orig_weight) {