Merge tag 'block-6.18-20251009' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull block fixes from Jens Axboe:

 - Don't include __GFP_NOWARN for loop worker allocation, as it already
   uses GFP_NOWAIT which has __GFP_NOWARN set already

 - Small series cleaning up the recent bio_iov_iter_get_pages() changes

 - loop fix for leaking the backing reference file, if validation fails

 - Update of a comment pertaining to disk/partition stat locking

* tag 'block-6.18-20251009' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  loop: remove redundant __GFP_NOWARN flag
  block: move bio_iov_iter_get_bdev_pages to block/fops.c
  iomap: open code bio_iov_iter_get_bdev_pages
  block: rename bio_iov_iter_get_pages_aligned to bio_iov_iter_get_pages
  block: remove bio_iov_iter_get_pages
  block: Update a comment of disk statistics
  loop: fix backing file reference leak on validation error

3 files changed, 17 insertions, 7 deletions

diff --git a/block/bio.c b/block/bio.c
index 3a1a848940dd..b3a79285c278 100644
--- a/block/bio.c
+++ b/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)
 {
diff --git a/block/blk-map.c b/block/blk-map.c
index 165f2234f00f..60faf036fb6e 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -283,7 +283,11 @@ static int bio_map_user_iov(struct request *rq, struct iov_iter *iter,
 	bio = blk_rq_map_bio_alloc(rq, nr_vecs, gfp_mask);
 	if (!bio)
 		return -ENOMEM;
-	ret = bio_iov_iter_get_pages(bio, iter);
+	/*
+	 * No alignment requirements on our part to support arbitrary
+	 * passthrough commands.
+	 */
+	ret = bio_iov_iter_get_pages(bio, iter, 0);
 	if (ret)
 		goto out_put;
 	ret = blk_rq_append_bio(rq, bio);
diff --git a/block/fops.c b/block/fops.c
index c2c0396ea9ee..5e3db9fead77 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -43,6 +43,13 @@ static bool blkdev_dio_invalid(struct block_device *bdev, struct kiocb *iocb,
 			(bdev_logical_block_size(bdev) - 1);
 }
 
+static inline int blkdev_iov_iter_get_pages(struct bio *bio,
+		struct iov_iter *iter, struct block_device *bdev)
+{
+	return bio_iov_iter_get_pages(bio, iter,
+			bdev_logical_block_size(bdev) - 1);
+}
+
 #define DIO_INLINE_BIO_VECS 4
 
 static ssize_t __blkdev_direct_IO_simple(struct kiocb *iocb,
@@ -78,7 +85,7 @@ static ssize_t __blkdev_direct_IO_simple(struct kiocb *iocb,
 	if (iocb->ki_flags & IOCB_ATOMIC)
 		bio.bi_opf |= REQ_ATOMIC;
 
-	ret = bio_iov_iter_get_bdev_pages(&bio, iter, bdev);
+	ret = blkdev_iov_iter_get_pages(&bio, iter, bdev);
 	if (unlikely(ret))
 		goto out;
 	ret = bio.bi_iter.bi_size;
@@ -212,7 +219,7 @@ static ssize_t __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
 		bio->bi_end_io = blkdev_bio_end_io;
 		bio->bi_ioprio = iocb->ki_ioprio;
 
-		ret = bio_iov_iter_get_bdev_pages(bio, iter, bdev);
+		ret = blkdev_iov_iter_get_pages(bio, iter, bdev);
 		if (unlikely(ret)) {
 			bio->bi_status = BLK_STS_IOERR;
 			bio_endio(bio);
@@ -348,7 +355,7 @@ static ssize_t __blkdev_direct_IO_async(struct kiocb *iocb,
 		 */
 		bio_iov_bvec_set(bio, iter);
 	} else {
-		ret = bio_iov_iter_get_bdev_pages(bio, iter, bdev);
+		ret = blkdev_iov_iter_get_pages(bio, iter, bdev);
 		if (unlikely(ret))
 			goto out_bio_put;
 	}