From d8898ee50edecacdf0141f26fd90acf43d7e9cd7 Mon Sep 17 00:00:00 2001 From: Stefan Haberland Date: Wed, 5 Apr 2023 16:20:17 +0200 Subject: [PATCH] s390/dasd: fix hanging blockdevice after request requeue The DASD driver does not kick the requeue list when requeuing IO requests to the blocklayer. This might lead to hanging blockdevice when there is no other trigger for this. Fix by automatically kick the requeue list when requeuing DASD requests to the blocklayer. Fixes: e443343e509a ("s390/dasd: blk-mq conversion") CC: stable@vger.kernel.org # 4.14+ Signed-off-by: Stefan Haberland Reviewed-by: Jan Hoeppner Reviewed-by: Halil Pasic Link: https://lore.kernel.org/r/20230405142017.2446986-8-sth@linux.ibm.com Signed-off-by: Jens Axboe --- drivers/s390/block/dasd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 3696931f8015..9fbfce735d56 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -2953,7 +2953,7 @@ static int _dasd_requeue_request(struct dasd_ccw_req *cqr) return 0; spin_lock_irq(&cqr->dq->lock); req = (struct request *) cqr->callback_data; - blk_mq_requeue_request(req, false); + blk_mq_requeue_request(req, true); spin_unlock_irq(&cqr->dq->lock); return 0;