[PATCH 02/11] block: add bdev_write_stream_granularity()

[Guixin Liu]

The write stream granularity queue limit is readable through the
queue_limits structure only.  Add a block device accessor next to
bdev_max_write_streams(), so that holders of a block device can read
it without going through the request queue.

Assisted-by: LLM
Signed-off-by: Guixin Liu <kanie at linux.alibaba.com>
---
 include/linux/blkdev.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 4f7905c3412b8..6eca09058dec6 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1307,6 +1307,14 @@ static inline unsigned short bdev_max_write_streams(struct block_device *bdev)
 	return bdev_limits(bdev)->max_write_streams;
 }
 
+static inline unsigned int
+bdev_write_stream_granularity(struct block_device *bdev)
+{
+	if (bdev_is_partition(bdev))
+		return 0;
+	return bdev_limits(bdev)->write_stream_granularity;
+}
+
 static inline unsigned queue_logical_block_size(const struct request_queue *q)
 {
 	return q->limits.logical_block_size;
-- 
2.43.7