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block: sunvdc: don't run hw queue synchronously from irq context 

vdc_blk_queue_start() may be called from irq context, so we can't run
queue via blk_mq_start_hw_queues() since we never allow to run queue
from irq context. Use blk_mq_start_stopped_hw_queues(q, true) to fix
this issue.

Fixes: fa182a1fa9 ("sunvdc: convert to blk-mq")
Reported-by: Anatoly Pugachev <matorola@gmail.com>
Tested-by: Anatoly Pugachev <matorola@gmail.com>
Cc: Anatoly Pugachev <matorola@gmail.com>
Cc: sparclinux@vger.kernel.org
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei 2019-01-03 09:19:48 +08:00 committed by Jens Axboe
parent dc629c211c
commit 43bfeb4510
1 changed files with 1 additions and 1 deletions
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2
drivers/block/sunvdc.c
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@ -181,7 +181,7 @@ static void vdc_blk_queue_start(struct vdc_port *port)
* allocated a disk.
*/
if (port->disk && vdc_tx_dring_avail(dr) * 100 / VDC_TX_RING_SIZE >= 50)
blk_mq_start_hw_queues(port->disk->queue);
blk_mq_start_stopped_hw_queues(port->disk->queue, true);
}
static void vdc_finish(struct vio_driver_state *vio, int err, int waiting_for)