From: Stefan Haberland Date: Wed, 5 Apr 2023 14:20:17 +0000 (+0200) Subject: s390/dasd: fix hanging blockdevice after request requeue X-Git-Tag: microblaze-v6.6~510^2~61 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=d8898ee50edecacdf0141f26fd90acf43d7e9cd7;p=linux-2.6-microblaze.git 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 --- 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;