[01/13] block: add bdev_max_segments() helper

Commit Message

Naohiro Aota July 8, 2022, 11:18 p.m. UTC

Add bdev_max_segments() like other queue parameters.

Signed-off-by: Naohiro Aota <[e-mail]>
Reviewed-by: Johannes Thumshirn <[e-mail]>
---
 include/linux/blkdev.h | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Jens Axboe July 9, 2022, 4:10 p.m. UTC | #1

On 7/8/22 5:18 PM, Naohiro Aota wrote:
> Add bdev_max_segments() like other queue parameters.

Reviewed-by: Jens Axboe <[e-mail]>

Christoph Hellwig July 11, 2022, 7 a.m. UTC | #2

Looks good:

Reviewed-by: Christoph Hellwig <[e-mail]>

Patch

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 2f7b43444c5f..62e3ff52ab03 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1206,6 +1206,11 @@  bdev_max_zone_append_sectors(struct block_device *bdev)
 	return queue_max_zone_append_sectors(bdev_get_queue(bdev));
 }
 
+static inline unsigned int bdev_max_segments(struct block_device *bdev)
+{
+	return queue_max_segments(bdev_get_queue(bdev));
+}
+
 static inline unsigned queue_logical_block_size(const struct request_queue *q)
 {
 	int retval = 512;