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-rw-r--r--block/blk-mq.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 45f994c10044..7111bd4180e7 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1166,10 +1166,11 @@ static inline bool blk_mq_complete_need_ipi(struct request *rq)
if (force_irqthreads())
return false;
- /* same CPU or cache domain? Complete locally */
+ /* same CPU or cache domain and capacity? Complete locally */
if (cpu == rq->mq_ctx->cpu ||
(!test_bit(QUEUE_FLAG_SAME_FORCE, &rq->q->queue_flags) &&
- cpus_share_cache(cpu, rq->mq_ctx->cpu)))
+ cpus_share_cache(cpu, rq->mq_ctx->cpu) &&
+ cpus_equal_capacity(cpu, rq->mq_ctx->cpu)))
return false;
/* don't try to IPI to an offline CPU */