block: rename bio_iov_iter_get_pages_aligned to bio_iov_iter_get_pages

Now that the bio_iov_iter_get_pages is free again, use it instead of
the more complicated now.  Also drop the unused export.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Author: Christoph Hellwig

block/bio.c

@@ -1316,7 +1316,7 @@ static int bio_iov_iter_align_down(struct bio *bio, struct iov_iter *iter,
 }
 
 /**
- * bio_iov_iter_get_pages_aligned - add user or kernel pages to a bio
+ * bio_iov_iter_get_pages - add user or kernel pages to a bio
  * @bio: bio to add pages to
  * @iter: iov iterator describing the region to be added
  * @len_align_mask: the mask to align the total size to, 0 for any length
@@ -1336,7 +1336,7 @@ static int bio_iov_iter_align_down(struct bio *bio, struct iov_iter *iter,
  * MM encounters an error pinning the requested pages, it stops. Error
  * is returned only if 0 pages could be pinned.
  */
-int bio_iov_iter_get_pages_aligned(struct bio *bio, struct iov_iter *iter,
+int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter,
 			   unsigned len_align_mask)
 {
 	int ret = 0;
@@ -1360,7 +1360,6 @@ int bio_iov_iter_get_pages_aligned(struct bio *bio, struct iov_iter *iter,
 		return bio_iov_iter_align_down(bio, iter, len_align_mask);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(bio_iov_iter_get_pages_aligned);
 
 static void submit_bio_wait_endio(struct bio *bio)
 {

block/blk-map.c

@@ -287,7 +287,7 @@ static int bio_map_user_iov(struct request *rq, struct iov_iter *iter,
 	 * No alignment requirements on our part to support arbitrary
 	 * passthrough commands.
 	 */
-	ret = bio_iov_iter_get_pages_aligned(bio, iter, 0);
+	ret = bio_iov_iter_get_pages(bio, iter, 0);
 	if (ret)
 		goto out_put;
 	ret = blk_rq_append_bio(rq, bio);

include/linux/bio.h

@@ -446,7 +446,7 @@ int submit_bio_wait(struct bio *bio);
 int bdev_rw_virt(struct block_device *bdev, sector_t sector, void *data,
 		size_t len, enum req_op op);
 
-int bio_iov_iter_get_pages_aligned(struct bio *bio, struct iov_iter *iter,
+int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter,
 		unsigned len_align_mask);
 
 void bio_iov_bvec_set(struct bio *bio, const struct iov_iter *iter);

include/linux/blkdev.h

@@ -1876,7 +1876,7 @@ static inline int bio_split_rw_at(struct bio *bio,
 static inline int bio_iov_iter_get_bdev_pages(struct bio *bio,
 		struct iov_iter *iter, struct block_device *bdev)
 {
-	return bio_iov_iter_get_pages_aligned(bio, iter,
+	return bio_iov_iter_get_pages(bio, iter,
 					bdev_logical_block_size(bdev) - 1);
 }