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

[Christoph Hellwig]

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 <h...@lst.de>
Reviewed-by: Jan Kara <j...@suse.cz>
Acked-by: Coly Li <col...@suse.de>
---
 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