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Subject[ 129/171] libceph: clear NEGOTIATING when done
Date
3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Elder <elder@inktank.com>

(cherry picked from commit 3ec50d1868a9e0493046400bb1fdd054c7f64ebd)

A connection state's NEGOTIATING bit gets set while in CONNECTING
state after we have successfully exchanged a ceph banner and IP
addresses with the connection's peer (the server). But that bit
is not cleared again--at least not until another connection attempt
is initiated.

Instead, clear it as soon as the connection is fully established.
Also, clear it when a socket connection gets prematurely closed
in the midst of establishing a ceph connection (in case we had
reached the point where it was set).

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/ceph/messenger.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1562,6 +1562,7 @@ static int process_connect(struct ceph_c
fail_protocol(con);
return -1;
}
+ clear_bit(NEGOTIATING, &con->state);
clear_bit(CONNECTING, &con->state);
con->peer_global_seq = le32_to_cpu(con->in_reply.global_seq);
con->connect_seq++;
@@ -1951,7 +1952,6 @@ more:

/* open the socket first? */
if (con->sock == NULL) {
- clear_bit(NEGOTIATING, &con->state);
set_bit(CONNECTING, &con->state);

con_out_kvec_reset(con);
@@ -2190,10 +2190,12 @@ static void con_work(struct work_struct
mutex_lock(&con->mutex);
restart:
if (test_and_clear_bit(SOCK_CLOSED, &con->flags)) {
- if (test_and_clear_bit(CONNECTING, &con->state))
+ if (test_and_clear_bit(CONNECTING, &con->state)) {
+ clear_bit(NEGOTIATING, &con->state);
con->error_msg = "connection failed";
- else
+ } else {
con->error_msg = "socket closed";
+ }
goto fault;
}




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