Messages in this thread Patch in this message | | | From | Jianchao Wang <> | Subject | [PATCH V2 3/8] blk-mq: use blk_mq_queue_tag_inflight_iter in debugfs | Date | Mon, 25 Mar 2019 13:38:33 +0800 |
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blk_mq_tagset_busy_iter is not safe that it could get stale request in tags->rqs[]. Use blk_mq_queue_tag_inflight_iter here.
Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com> --- block/blk-mq-debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index ec1d18c..b7f2538 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -438,7 +438,7 @@ static int hctx_busy_show(void *data, struct seq_file *m) struct blk_mq_hw_ctx *hctx = data; struct show_busy_params params = { .m = m, .hctx = hctx }; - blk_mq_tagset_busy_iter(hctx->queue->tag_set, hctx_show_busy_rq, + blk_mq_queue_tag_inflight_iter(hctx->queue, hctx_show_busy_rq, ¶ms); return 0; -- 2.7.4
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