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>
diff --git a/block/blk-settings.c b/block/blk-settings.c
index b83df3d..94410a1 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);
