libceph: use the right footer size when skipping a message

[firefly-linux-kernel-4.4.55.git] / net / ceph / messenger.c

diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index a145180150efe84054d3d3be17d0eb330ecd5b72..63ae5dd24fc597277ac384cb06b27ea16c6db25b 100644 (file)
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1200,6 +1200,13 @@ static bool ceph_msg_data_advance(struct ceph_msg_data_cursor *cursor,
        return new_piece;
 }
 
+static size_t sizeof_footer(struct ceph_connection *con)
+{
+       return (con->peer_features & CEPH_FEATURE_MSG_AUTH) ?
+           sizeof(struct ceph_msg_footer) :
+           sizeof(struct ceph_msg_footer_old);
+}
+
 static void prepare_message_data(struct ceph_msg *msg, u32 data_len)
 {
        BUG_ON(!msg);
@@ -2338,9 +2345,9 @@ static int read_partial_message(struct ceph_connection *con)
                        ceph_pr_addr(&con->peer_addr.in_addr),
                        seq, con->in_seq + 1);
                con->in_base_pos = -front_len - middle_len - data_len -
-                       sizeof(m->footer);
+                       sizeof_footer(con);
                con->in_tag = CEPH_MSGR_TAG_READY;
-               return 0;
+               return 1;
        } else if ((s64)seq - (s64)con->in_seq > 1) {
                pr_err("read_partial_message bad seq %lld expected %lld\n",
                       seq, con->in_seq + 1);
@@ -2363,10 +2370,10 @@ static int read_partial_message(struct ceph_connection *con)
                        /* skip this message */
                        dout("alloc_msg said skip message\n");
                        con->in_base_pos = -front_len - middle_len - data_len -
-                               sizeof(m->footer);
+                               sizeof_footer(con);
                        con->in_tag = CEPH_MSGR_TAG_READY;
                        con->in_seq++;
-                       return 0;
+                       return 1;
                }
 
                BUG_ON(!con->in_msg);