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authorMing Lei <ming.lei@redhat.com>2019-01-03 09:19:48 +0800
committerJens Axboe <axboe@kernel.dk>2019-01-03 08:21:47 -0700
commit43bfeb45109ad154df4dde67d3d04a8876a3bfc1 (patch)
tree0c8d3d36055c0eb488326154cf2cdc2aa4f6a12d
parentdc629c211c65ee5c8f1c4976886d4a5f33f50674 (diff)
downloadlinux-43bfeb45109ad154df4dde67d3d04a8876a3bfc1.tar.bz2
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: fa182a1fa97dff56cd ("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>
-rw-r--r--drivers/block/sunvdc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 0ff27e2d98c4..26937ba28f78 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -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)