Re: [PATCH 6/8] ataflop: implement mq_ops->commit_rqs() hook

[Omar Sandoval <osandov@osandov.com>]

On Mon, Nov 26, 2018 at 09:35:54AM -0700, Jens Axboe wrote:
> We need this for blk-mq to kick things into gear, if we told it that
> we had more IO coming, but then failed to deliver on that promise.

Who converted this one? Oh yeah, it was me...

Reviewed-by: Omar Sandoval <osandov@fb.com>

> Signed-off-by: Jens Axboe <axboe@kernel.dk>
> ---
>  drivers/block/ataflop.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
> index f88b4c26d422..475cb972f324 100644
> --- a/drivers/block/ataflop.c
> +++ b/drivers/block/ataflop.c
> @@ -1471,6 +1471,13 @@ static void setup_req_params( int drive )
>  			ReqTrack, ReqSector, (unsigned long)ReqData ));
>  }
>  
> +static void ataflop_commit_rqs(struct blk_mq_hw_ctx *hctx)
> +{
> +	spin_lock_irq(&ataflop_lock);
> +	finish_fdc();
> +	spin_unlock_irq(&ataflop_lock);
> +}
> +
>  static blk_status_t ataflop_queue_rq(struct blk_mq_hw_ctx *hctx,
>  				     const struct blk_mq_queue_data *bd)
>  {
> @@ -1947,6 +1954,7 @@ static const struct block_device_operations floppy_fops = {
>  
>  static const struct blk_mq_ops ataflop_mq_ops = {
>  	.queue_rq = ataflop_queue_rq,
> +	.commit_rqs = ataflop_commit_rqs,
>  };
>  
>  static struct kobject *floppy_find(dev_t dev, int *part, void *data)
> -- 
> 2.17.1
>