Re: [PATCH 03/13] bcache: inherit the optimal I/O size

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On Mon 21-09-20 10:07:24, Christoph Hellwig wrote:
> Inherit the optimal I/O size setting just like the readahead window,
> as any reason to do larger I/O does not apply to just readahead.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

The patch looks good to me. You can add:

Reviewed-by: Jan Kara <jack@xxxxxxx>

								Honza

> ---
>  drivers/md/bcache/super.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
> index 1bbdc410ee3c51..48113005ed86ad 100644
> --- a/drivers/md/bcache/super.c
> +++ b/drivers/md/bcache/super.c
> @@ -1430,6 +1430,8 @@ static int cached_dev_init(struct cached_dev *dc, unsigned int block_size)
>  	dc->disk.disk->queue->backing_dev_info->ra_pages =
>  		max(dc->disk.disk->queue->backing_dev_info->ra_pages,
>  		    q->backing_dev_info->ra_pages);
> +	blk_queue_io_opt(dc->disk.disk->queue,
> +		max(queue_io_opt(dc->disk.disk->queue), queue_io_opt(q)));
>  
>  	atomic_set(&dc->io_errors, 0);
>  	dc->io_disable = false;
> -- 
> 2.28.0
> 
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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