Commit 4a2dcc35 authored by Keith Busch's avatar Keith Busch Committed by Jens Axboe
Browse files

block: introduce bdev_dma_alignment helper 



Preparing for upcoming dma_alignment users that have a block_device, but
don't need the request_queue.

Signed-off-by: default avatarKeith Busch <kbusch@kernel.org>
Reviewed-by: default avatarJohannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220610195830.3574005-5-kbusch@fb.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 3850e13f

include/linux/blkdev.h

+5 −0
Original line number Diff line number Diff line
@@ -1365,6 +1365,11 @@ static inline int queue_dma_alignment(const struct request_queue *q) 
	return q ? q->dma_alignment : 511;

}



static inline unsigned int bdev_dma_alignment(struct block_device *bdev)

{

	return queue_dma_alignment(bdev_get_queue(bdev));

}



static inline int blk_rq_aligned(struct request_queue *q, unsigned long addr,

				 unsigned int len)

{