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authorMartin K. Petersen <martin.petersen@oracle.com>2014-04-09 04:43:44 +0200
committerJens Axboe <axboe@fb.com>2014-04-09 16:00:04 +0200
commit0bc69973066d62f70ce60bd6762b5cb75a699159 (patch)
tree7ad054c0b719fe45e3243383422b8666d79700b0 /fs/bio-integrity.c
parentblock: Fix for_each_bvec() (diff)
downloadlinux-0bc69973066d62f70ce60bd6762b5cb75a699159.tar.xz
linux-0bc69973066d62f70ce60bd6762b5cb75a699159.zip
block: Fix integrity verification
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.petersen@oracle.com> Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/bio-integrity.c')
-rw-r--r--fs/bio-integrity.c19
1 files 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;