[PATCH V2 5/8] nbd: use blk_mq_queue_tag_inflight_iter

Jianchao Wang
2019-03-25T05:47:37Z

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>
---
drivers/block/nbd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 90ba9f4..c48984b 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -747,7 +747,7 @@ static bool nbd_clear_req(struct request *req, void *data, bool reserved)
static void nbd_clear_que(struct nbd_device *nbd)
{
blk_mq_quiesce_queue(nbd->disk->queue);
- blk_mq_tagset_busy_iter(&nbd->tag_set, nbd_clear_req, NULL);
+ blk_mq_queue_tag_inflight_iter(nbd->disk->queue, nbd_clear_req, NULL);
blk_mq_unquiesce_queue(nbd->disk->queue);
dev_dbg(disk_to_dev(nbd->disk), "queue cleared\n");
}
--
2.7.4