ceph: reset iov_len when discarding cap release messages

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 4d29203..ddbd590 100644 (file)
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1391,6 +1391,7 @@ static void discard_cap_releases(struct ceph_mds_client *mdsc,
        num = le32_to_cpu(head->num);
        dout("discard_cap_releases mds%d %p %u\n", session->s_mds, msg, num);
        head->num = cpu_to_le32(0);
+       msg->front.iov_len = sizeof(*head);
        session->s_num_cap_releases += num;
 
        /* requeue completed messages */