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

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