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block: introduce bdev_iter_is_aligned helper
Provide a convenient function for this repeatable coding pattern. Signed-off-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20220610195830.3574005-10-kbusch@fb.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@ -1370,6 +1370,13 @@ static inline unsigned int bdev_dma_alignment(struct block_device *bdev)
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return queue_dma_alignment(bdev_get_queue(bdev));
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return queue_dma_alignment(bdev_get_queue(bdev));
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}
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}
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static inline bool bdev_iter_is_aligned(struct block_device *bdev,
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struct iov_iter *iter)
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{
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return iov_iter_is_aligned(iter, bdev_dma_alignment(bdev),
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bdev_logical_block_size(bdev) - 1);
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}
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static inline int blk_rq_aligned(struct request_queue *q, unsigned long addr,
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static inline int blk_rq_aligned(struct request_queue *q, unsigned long addr,
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unsigned int len)
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unsigned int len)
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{
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{
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