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-rw-r--r--block/blk-mq.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h
index 1ae364ceaf8b..97cfab9c092f 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -12,6 +12,8 @@ struct blk_mq_ctx {
unsigned int cpu;
unsigned int index_hw;
+ unsigned int last_tag ____cacheline_aligned_in_smp;
+
/* incremented at dispatch time */
unsigned long rq_dispatched[2];
unsigned long rq_merged;
@@ -21,7 +23,7 @@ struct blk_mq_ctx {
struct request_queue *queue;
struct kobject kobj;
-};
+} ____cacheline_aligned_in_smp;
void __blk_mq_complete_request(struct request *rq);
void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async);