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drbd: fix potential data corruption and protocol error

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Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Lars Ellenberg 2012-03-26 16:12:49 +02:00 committed by Philipp Reisner
parent e8744f5aca
commit 4b8514ee28
2 changed files with 3 additions and 3 deletions
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4
drivers/block/drbd/drbd_main.c
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@ -1729,7 +1729,7 @@ static int _drbd_send_bio(struct drbd_conf *mdev, struct bio *bio)
struct bio_vec *bvec;
int i;
/* hint all but last page with MSG_MORE */
__bio_for_each_segment(bvec, bio, i, 0) {
bio_for_each_segment(bvec, bio, i) {
int err;
err = _drbd_no_send_page(mdev, bvec->bv_page,
@ -1746,7 +1746,7 @@ static int _drbd_send_zc_bio(struct drbd_conf *mdev, struct bio *bio)
struct bio_vec *bvec;
int i;
/* hint all but last page with MSG_MORE */
__bio_for_each_segment(bvec, bio, i, 0) {
bio_for_each_segment(bvec, bio, i) {
int err;
err = _drbd_send_page(mdev, bvec->bv_page,

2
drivers/block/drbd/drbd_worker.c
View File

@ -304,7 +304,7 @@ void drbd_csum_bio(struct drbd_conf *mdev, struct crypto_hash *tfm, struct bio *
sg_init_table(&sg, 1);
crypto_hash_init(&desc);
__bio_for_each_segment(bvec, bio, i, 0) {
bio_for_each_segment(bvec, bio, i) {
sg_set_page(&sg, bvec->bv_page, bvec->bv_len, bvec->bv_offset);
crypto_hash_update(&desc, &sg, sg.length);
}