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drbd: explicitly clear unused dp_flags in drbd_send_block

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We send left-over garbage from the previous packet in P_DATA_REPLY and
P_RS_DATA_REPLY packets. That's bad behaviour.

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 2012-02-08 15:32:51 +01:00 committed by Philipp Reisner
parent 4d0fc3fdc3
commit b17f33cb0a
1 changed files with 1 additions and 0 deletions
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drivers/block/drbd/drbd_main.c
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@ -1882,6 +1882,7 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packet cmd,
p->sector = cpu_to_be64(peer_req->i.sector);
p->block_id = peer_req->block_id;
p->seq_num = 0; /* unused */
p->dp_flags = 0;
if (dgs)
drbd_csum_ee(mdev, mdev->tconn->integrity_tfm, peer_req, p + 1);
err = __send_command(mdev->tconn, mdev->vnr, sock, cmd, sizeof(*p) + dgs, NULL, peer_req->i.size);