Commit 93bd38b3 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git.kernel.dk/linux-block 

Pull block core regression fix from Jens Axboe:
 "Single fix for a regression introduced in this development cycle,
  where dm on top of dif/dix is broken.  From Darrick Wong"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: fix regression where bio_integrity_process uses wrong bio_vec iterator
parents 46d967ae 594416a7

block/bio-integrity.c

+7 −6
Original line number Diff line number Diff line
@@ -216,9 +216,10 @@ static int bio_integrity_process(struct bio *bio, 
{

	struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);

	struct blk_integrity_iter iter;

	struct bio_vec *bv;

	struct bvec_iter bviter;

	struct bio_vec bv;

	struct bio_integrity_payload *bip = bio_integrity(bio);

	unsigned int i, ret = 0;

	unsigned int ret = 0;

	void *prot_buf = page_address(bip->bip_vec->bv_page) +

		bip->bip_vec->bv_offset;
@@ -227,11 +228,11 @@ static int bio_integrity_process(struct bio *bio, 
	iter.seed = bip_get_seed(bip);

	iter.prot_buf = prot_buf;



	bio_for_each_segment_all(bv, bio, i) {

		void *kaddr = kmap_atomic(bv->bv_page);

	bio_for_each_segment(bv, bio, bviter) {

		void *kaddr = kmap_atomic(bv.bv_page);



		iter.data_buf = kaddr + bv->bv_offset;

		iter.data_size = bv->bv_len;

		iter.data_buf = kaddr + bv.bv_offset;

		iter.data_size = bv.bv_len;



		ret = proc_fn(&iter);

		if (ret) {

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