[PATCH 03/13] bcache: inherit the optimal I/O size
From: Christoph Hellwig <hch@lst.de>
Date: 2020-09-21 08:09:35
Also in:
cgroups, dm-devel, linux-bcache, linux-block, linux-fsdevel, linux-mm, lkml
Subsystem:
bcache (block layer cache), the rest · Maintainers:
Coly Li, Kent Overstreet, Linus Torvalds
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@lst.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