[PATCH 3/3] block: Bring back zero_fill_bio_iter
From: Kent Overstreet <kent.overstreet@linux.dev>
Date: 2023-08-13 18:26:53
Also in:
linux-fsdevel
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
From: Kent Overstreet <redacted> This reverts 6f822e1b5d9dda3d20e87365de138046e3baa03a - this helper is used by bcachefs. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> Cc: Jens Axboe <axboe@kernel.dk> Cc: linux-block@vger.kernel.org --- block/bio.c | 6 +++--- include/linux/bio.h | 7 ++++++- 2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/block/bio.c b/block/bio.c
index e74a04ea14..70b5c987bc 100644
--- a/block/bio.c
+++ b/block/bio.c@@ -606,15 +606,15 @@ struct bio *bio_kmalloc(unsigned short nr_vecs, gfp_t gfp_mask) } EXPORT_SYMBOL(bio_kmalloc); -void zero_fill_bio(struct bio *bio) +void zero_fill_bio_iter(struct bio *bio, struct bvec_iter start) { struct bio_vec bv; struct bvec_iter iter; - bio_for_each_segment(bv, bio, iter) + __bio_for_each_segment(bv, bio, iter, start) memzero_bvec(&bv); } -EXPORT_SYMBOL(zero_fill_bio); +EXPORT_SYMBOL(zero_fill_bio_iter); /** * bio_truncate - truncate the bio to small size of @new_size
diff --git a/include/linux/bio.h b/include/linux/bio.h
index b3e7529ff5..f2620f8d18 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h@@ -484,7 +484,12 @@ extern void bio_copy_data_iter(struct bio *dst, struct bvec_iter *dst_iter, extern void bio_copy_data(struct bio *dst, struct bio *src); extern void bio_free_pages(struct bio *bio); void guard_bio_eod(struct bio *bio); -void zero_fill_bio(struct bio *bio); +void zero_fill_bio_iter(struct bio *bio, struct bvec_iter iter); + +static inline void zero_fill_bio(struct bio *bio) +{ + zero_fill_bio_iter(bio, bio->bi_iter); +} static inline void bio_release_pages(struct bio *bio, bool mark_dirty) {
--
2.40.1