Commit 0fa6ebc6 authored by Sage Weil's avatar Sage Weil Committed by Alex Elder

libceph: fix protocol feature mismatch failure path

We should not set con->state to CLOSED here; that happens in
ceph_fault() in the caller, where it first asserts that the state
is not yet CLOSED.  Avoids a BUG when the features don't match.

Since the fail_protocol() has become a trivial wrapper, replace
calls to it with direct calls to reset_connection().
Signed-off-by: default avatarSage Weil <sage@inktank.com>
Reviewed-by: default avatarAlex Elder <elder@inktank.com>
parent 122070a2
......@@ -506,6 +506,7 @@ static void reset_connection(struct ceph_connection *con)
{
/* reset connection, out_queue, msg_ and connect_seq */
/* discard existing out_queue and msg_seq */
dout("reset_connection %p\n", con);
ceph_msg_remove_list(&con->out_queue);
ceph_msg_remove_list(&con->out_sent);
......@@ -1506,13 +1507,6 @@ static int process_banner(struct ceph_connection *con)
return 0;
}
static void fail_protocol(struct ceph_connection *con)
{
reset_connection(con);
WARN_ON(con->state != CON_STATE_NEGOTIATING);
con->state = CON_STATE_CLOSED;
}
static int process_connect(struct ceph_connection *con)
{
u64 sup_feat = con->msgr->supported_features;
......@@ -1530,7 +1524,7 @@ static int process_connect(struct ceph_connection *con)
ceph_pr_addr(&con->peer_addr.in_addr),
sup_feat, server_feat, server_feat & ~sup_feat);
con->error_msg = "missing required protocol features";
fail_protocol(con);
reset_connection(con);
return -1;
case CEPH_MSGR_TAG_BADPROTOVER:
......@@ -1541,7 +1535,7 @@ static int process_connect(struct ceph_connection *con)
le32_to_cpu(con->out_connect.protocol_version),
le32_to_cpu(con->in_reply.protocol_version));
con->error_msg = "protocol version mismatch";
fail_protocol(con);
reset_connection(con);
return -1;
case CEPH_MSGR_TAG_BADAUTHORIZER:
......@@ -1631,7 +1625,7 @@ static int process_connect(struct ceph_connection *con)
ceph_pr_addr(&con->peer_addr.in_addr),
req_feat, server_feat, req_feat & ~server_feat);
con->error_msg = "missing required protocol features";
fail_protocol(con);
reset_connection(con);
return -1;
}
......
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