diff options
author | Pankaj Raghav <p.raghav@samsung.com> | 2023-01-10 17:36:34 +0300 |
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committer | Jens Axboe <axboe@kernel.dk> | 2023-01-30 01:18:34 +0300 |
commit | e29b210021dcf8e03e0dcc035107afaeb55e6631 (patch) | |
tree | 929c04ad731a3dc5e971b5cc9bc8c9785591f352 /include/linux/blkdev.h | |
parent | fea127b36c93d9afe49561b640fe1fc541dc3ba4 (diff) | |
download | linux-e29b210021dcf8e03e0dcc035107afaeb55e6631.tar.xz |
block: add a new helper bdev_{is_zone_start, offset_from_zone_start}
Instead of open coding to check for zone start, add a helper to improve
readability and store the logic in one place.
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230110143635.77300-3-p.raghav@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r-- | include/linux/blkdev.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 0956bc0fb5b0..7822c6f4c7bd 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1306,6 +1306,18 @@ static inline sector_t bdev_zone_sectors(struct block_device *bdev) return q->limits.chunk_sectors; } +static inline sector_t bdev_offset_from_zone_start(struct block_device *bdev, + sector_t sector) +{ + return sector & (bdev_zone_sectors(bdev) - 1); +} + +static inline bool bdev_is_zone_start(struct block_device *bdev, + sector_t sector) +{ + return bdev_offset_from_zone_start(bdev, sector) == 0; +} + static inline int queue_dma_alignment(const struct request_queue *q) { return q ? q->limits.dma_alignment : 511; |