| Message ID | 20220531191137.2291467-10-kbusch@fb.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | direct-io dma alignment | expand |
On Tue, May 31, 2022 at 12:11:35PM -0700, Keith Busch wrote: > From: Keith Busch <kbusch@kernel.org> > > Provide a convenient function for this repeatable coding pattern. > > Signed-off-by: Keith Busch <kbusch@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
Modulo the naming typo:
Reviewed-by: Christoph Hellwig <hch@lst.de>
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); +} + static inline int blk_rq_aligned(struct request_queue *q, unsigned long addr, unsigned int len) {