Commit 5debd969 authored by Keith Busch's avatar Keith Busch Committed by Jens Axboe
Browse files

block: introduce bdev_iter_is_aligned helper 



Provide a convenient function for this repeatable coding pattern.

Signed-off-by: default avatarKeith Busch <kbusch@kernel.org>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220610195830.3574005-10-kbusch@fb.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent cfa320f7

include/linux/blkdev.h

+7 −0
Original line number Diff line number Diff line
@@ -1370,6 +1370,13 @@ static inline unsigned int bdev_dma_alignment(struct block_device *bdev) 
	return queue_dma_alignment(bdev_get_queue(bdev));

}



static inline bool bdev_iter_is_aligned(struct block_device *bdev,

					struct iov_iter *iter)

{

	return iov_iter_is_aligned(iter, bdev_dma_alignment(bdev),

				   bdev_logical_block_size(bdev) - 1);

}



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

				 unsigned int len)

{