diff options
| author | Christoph Hellwig <hch@lst.de> | 2022-04-15 06:52:49 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-04-17 19:49:59 -0600 |
| commit | 89098b075cb74a80083bc4ed6b71d0ee18b6898f (patch) | |
| tree | 6af1e0911335501b6454fb7109037b10fad69888 /block/blk-settings.c | |
| parent | 640f2a23911b8388989547f89d055afbb910b88e (diff) | |
block: move bdev_alignment_offset and queue_limit_alignment_offset out of line
No need to inline these fairly larger helpers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20220415045258.199825-19-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-settings.c')
| -rw-r--r-- | block/blk-settings.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/block/blk-settings.c b/block/blk-settings.c index b83df3d2eebc..94410a13c0de 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -468,6 +468,16 @@ void blk_queue_io_opt(struct request_queue *q, unsigned int opt) } EXPORT_SYMBOL(blk_queue_io_opt); +static int queue_limit_alignment_offset(struct queue_limits *lim, + sector_t sector) +{ + unsigned int granularity = max(lim->physical_block_size, lim->io_min); + unsigned int alignment = sector_div(sector, granularity >> SECTOR_SHIFT) + << SECTOR_SHIFT; + + return (granularity + lim->alignment_offset - alignment) % granularity; +} + static unsigned int blk_round_down_sectors(unsigned int sectors, unsigned int lbs) { sectors = round_down(sectors, lbs >> SECTOR_SHIFT); @@ -901,3 +911,16 @@ void blk_queue_set_zoned(struct gendisk *disk, enum blk_zoned_model model) } } EXPORT_SYMBOL_GPL(blk_queue_set_zoned); + +int bdev_alignment_offset(struct block_device *bdev) +{ + struct request_queue *q = bdev_get_queue(bdev); + + if (q->limits.misaligned) + return -1; + if (bdev_is_partition(bdev)) + return queue_limit_alignment_offset(&q->limits, + bdev->bd_start_sect); + return q->limits.alignment_offset; +} +EXPORT_SYMBOL_GPL(bdev_alignment_offset); |