diff options
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 34 |
1 files changed, 1 insertions, 33 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 5a9b7aeda010..34b1cfd06742 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1252,39 +1252,7 @@ bdev_zone_write_granularity(struct block_device *bdev) } int bdev_alignment_offset(struct block_device *bdev); - -static inline int queue_limit_discard_alignment(struct queue_limits *lim, sector_t sector) -{ - unsigned int alignment, granularity, offset; - - if (!lim->max_discard_sectors) - return 0; - - /* Why are these in bytes, not sectors? */ - alignment = lim->discard_alignment >> SECTOR_SHIFT; - granularity = lim->discard_granularity >> SECTOR_SHIFT; - if (!granularity) - return 0; - - /* Offset of the partition start in 'granularity' sectors */ - offset = sector_div(sector, granularity); - - /* And why do we do this modulus *again* in blkdev_issue_discard()? */ - offset = (granularity + alignment - offset) % granularity; - - /* Turn it back into bytes, gaah */ - return offset << SECTOR_SHIFT; -} - -static inline int bdev_discard_alignment(struct block_device *bdev) -{ - struct request_queue *q = bdev_get_queue(bdev); - - if (bdev_is_partition(bdev)) - return queue_limit_discard_alignment(&q->limits, - bdev->bd_start_sect); - return q->limits.discard_alignment; -} +unsigned int bdev_discard_alignment(struct block_device *bdev); static inline unsigned int bdev_write_zeroes_sectors(struct block_device *bdev) { |