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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-03 14:05:24 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-03 14:05:24 -0800
commit93bd38b31f5169a8f822de15a01abddd2fc8bcd7 (patch)
tree34d0050d0fe96ac99ad6274f1f86eeff95cce6c9
parent46d967ae74ba4412b39f4df9b4fcbe0a766989f4 (diff)
parent594416a72032684792bb22510c538098db10b750 (diff)
downloadlinux-linaro-stable-93bd38b31f5169a8f822de15a01abddd2fc8bcd7.tar.gz
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
-rw-r--r--block/bio-integrity.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index 0984232e429f..5cbd5d9ea61d 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -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) {