blk-mq: Do not invoke .queue_rq() for a stopped queue

commit bc27c01b5c46d3bfec42c96537c7a3fae0bb2cc4 upstream.

The meaning of the BLK_MQ_S_STOPPED flag is "do not call
.queue_rq()". Hence modify blk_mq_make_request() such that requests
are queued instead of issued if a queue has been stopped.

Reported-by: Ming Lei <>
Signed-off-by: Bart Van Assche <>
Reviewed-by: Christoph Hellwig <>
Reviewed-by: Ming Lei <>
Reviewed-by: Hannes Reinecke <>
Reviewed-by: Johannes Thumshirn <>
Reviewed-by: Sagi Grimberg <>
Signed-off-by: Jens Axboe <>
Signed-off-by: Greg Kroah-Hartman <>

1 file changed