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[V2,3/8] blk-mq: use blk_mq_queue_tag_inflight_iter in debugfs

Message ID 1553492318-1810-4-git-send-email-jianchao.w.wang@oracle.com (mailing list archive)
State New, archived
Headers show
Series : blk-mq: use static_rqs to iterate busy tags | expand

Commit Message

jianchao.wang March 25, 2019, 5:38 a.m. UTC 
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(-)
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Patch

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,
 				&params);
 
 	return 0;