From: "Martin K. Petersen" <martin.peter...@oracle.com>
Commit bf36f9cfa6d3d caused a regression by effectively reverting Nic's
fix from 5837c80e870b that ensures we traverse the full bio_vec list
upon completion.
Signed-off-by: Martin K. Petersen <martin.peter...@oracle.com>
Cc: Nicholas Bellinger <n...@linux-iscsi.org>
Cc: Gu Zheng <guz.f...@cn.fujitsu.com>
---
fs/bio-integrity.c | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)
diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index 29696b78d1f4..b355b98dbf1b 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -309,10 +309,9 @@ static int bio_integrity_generate_verify(struct bio *bio,
int operate)
{
struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
struct blk_integrity_exchg bix;
- struct bio_vec bv;
- struct bvec_iter iter;
+ struct bio_vec *bv;
sector_t sector;
- unsigned int sectors, ret = 0;
+ unsigned int sectors, ret = 0, i;
void *prot_buf = bio->bi_integrity->bip_buf;
if (operate)
@@ -323,16 +322,16 @@ static int bio_integrity_generate_verify(struct bio *bio,
int operate)
bix.disk_name = bio->bi_bdev->bd_disk->disk_name;
bix.sector_size = bi->sector_size;
- bio_for_each_segment(bv, bio, iter) {
- void *kaddr = kmap_atomic(bv.bv_page);
- bix.data_buf = kaddr + bv.bv_offset;
- bix.data_size = bv.bv_len;
+ bio_for_each_segment_all(bv, bio, i) {
+ void *kaddr = kmap_atomic(bv->bv_page);
+ bix.data_buf = kaddr + bv->bv_offset;
+ bix.data_size = bv->bv_len;
bix.prot_buf = prot_buf;
bix.sector = sector;
- if (operate) {
+ if (operate)
bi->generate_fn(&bix);
- } else {
+ else {
ret = bi->verify_fn(&bix);
if (ret) {
kunmap_atomic(kaddr);
@@ -340,7 +339,7 @@ static int bio_integrity_generate_verify(struct bio *bio,
int operate)
}
}
- sectors = bv.bv_len / bi->sector_size;
+ sectors = bv->bv_len / bi->sector_size;
sector += sectors;
prot_buf += sectors * bi->tuple_size;
--
1.8.3.1
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