diff options
| -rw-r--r-- | block/blk-core.c | 8 | ||||
| -rw-r--r-- | block/blk-mq-sysfs.c | 4 | ||||
| -rw-r--r-- | include/linux/blk-mq.h | 1 |
3 files changed, 10 insertions, 3 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 34ff8088eebe..14d7c0740dc0 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -3307,19 +3307,23 @@ bool blk_poll(struct request_queue *q, blk_qc_t cookie) { struct blk_plug *plug; long state; + unsigned int queue_num; + struct blk_mq_hw_ctx *hctx; if (!q->mq_ops || !q->mq_ops->poll || !blk_qc_t_valid(cookie) || !test_bit(QUEUE_FLAG_POLL, &q->queue_flags)) return false; + queue_num = blk_qc_t_to_queue_num(cookie); + hctx = q->queue_hw_ctx[queue_num]; + hctx->poll_considered++; + plug = current->plug; if (plug) blk_flush_plug_list(plug, false); state = current->state; while (!need_resched()) { - unsigned int queue_num = blk_qc_t_to_queue_num(cookie); - struct blk_mq_hw_ctx *hctx = q->queue_hw_ctx[queue_num]; int ret; hctx->poll_invoked++; diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c index fe822aa5b8e4..ea8c3f58afbd 100644 --- a/block/blk-mq-sysfs.c +++ b/block/blk-mq-sysfs.c @@ -176,7 +176,9 @@ static ssize_t blk_mq_sysfs_rq_list_show(struct blk_mq_ctx *ctx, char *page) static ssize_t blk_mq_hw_sysfs_poll_show(struct blk_mq_hw_ctx *hctx, char *page) { - return sprintf(page, "invoked=%lu, success=%lu\n", hctx->poll_invoked, hctx->poll_success); + return sprintf(page, "considered=%lu, invoked=%lu, success=%lu\n", + hctx->poll_considered, hctx->poll_invoked, + hctx->poll_success); } static ssize_t blk_mq_hw_sysfs_queued_show(struct blk_mq_hw_ctx *hctx, diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index e1544f0f8c21..7710f795d7c2 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -61,6 +61,7 @@ struct blk_mq_hw_ctx { struct blk_mq_cpu_notifier cpu_notifier; struct kobject kobj; + unsigned long poll_considered; unsigned long poll_invoked; unsigned long poll_success; }; |