From: Ming Lei Date: Thu, 3 Jan 2019 01:19:48 +0000 (+0800) Subject: block: sunvdc: don't run hw queue synchronously from irq context X-Git-Tag: Ubuntu-5.10.0-12.13~6226^2~1 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=43bfeb45109ad154df4dde67d3d04a8876a3bfc1;p=mirror_ubuntu-hirsute-kernel.git 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 Tested-by: Anatoly Pugachev Cc: Anatoly Pugachev Cc: sparclinux@vger.kernel.org Acked-by: David S. Miller Signed-off-by: Ming Lei Signed-off-by: Jens Axboe --- 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)