diff options
| author | Keith Busch <kbusch@kernel.org> | 2025-05-06 17:47:24 +0530 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-05-06 07:46:43 -0600 |
| commit | d2f526ba27d29c442542f7c5df0a86ef0b576716 (patch) | |
| tree | 89335d624eda11b9c200da635ee2d805f1c91fd0 /include/linux/blkdev.h | |
| parent | 5006f85ea23ea0bda9a8e31fdda126f4fca48f20 (diff) | |
block: introduce max_write_streams queue limit
Drivers with hardware that support write streams need a way to export how
many are available so applications can generically query this.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Nitesh Shetty <nj.shetty@samsung.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
[hch: renamed hints to streams, removed stacking]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20250506121732.8211-4-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 94323f303b37..13e1426ad38d 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -404,6 +404,8 @@ struct queue_limits { unsigned short max_integrity_segments; unsigned short max_discard_segments; + unsigned short max_write_streams; + unsigned int max_open_zones; unsigned int max_active_zones; @@ -1270,6 +1272,13 @@ static inline unsigned int bdev_max_segments(struct block_device *bdev) return queue_max_segments(bdev_get_queue(bdev)); } +static inline unsigned short bdev_max_write_streams(struct block_device *bdev) +{ + if (bdev_is_partition(bdev)) + return 0; + return bdev_limits(bdev)->max_write_streams; +} + static inline unsigned queue_logical_block_size(const struct request_queue *q) { return q->limits.logical_block_size; |