[PATCHv5 09/11] block: introduce bdev_iter_is_aligned helper

[Eric Biggers]

On Tue, May 31, 2022 at 12:11:35PM -0700, Keith Busch wrote:
> From: Keith Busch <kbusch at kernel.org>
> 
> Provide a convenient function for this repeatable coding pattern.
> 
> Signed-off-by: Keith Busch <kbusch at kernel.org>
> ---
>  include/linux/blkdev.h | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 834b981ef01b..583cdeb8895d 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -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 bvev_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);
> +}

"bdev", not "bvev".

- Eric