Commit 649f070e authored by Kent Overstreet's avatar Kent Overstreet Committed by Jens Axboe
Browse files

block: Bring back zero_fill_bio_iter 



This reverts 6f822e1b - this helper is
used by bcachefs.

Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Link: https://lore.kernel.org/r/20230813182636.2966159-4-kent.overstreet@linux.dev


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 168145f6

block/bio.c

+3 −3
Original line number Diff line number Diff line
@@ -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

include/linux/bio.h

+6 −1
Original line number Diff line number Diff line
@@ -488,7 +488,12 @@ 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)

{