releases/3.4.20/0081-libceph-initialize-mon_client-con-only-once.patch

From 898a7dce3c962d721f2b00e64ea4e9f029f46455 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@inktank.com>
Date: Wed, 27 Jun 2012 12:24:34 -0700
Subject: libceph: initialize mon_client con only once

From: Sage Weil <sage@inktank.com>

(cherry picked from commit 735a72ef952d42a256f79ae3e6dc1c17a45c041b)

Do not re-initialize the con on every connection attempt.  When we
ceph_con_close, there may still be work queued on the socket (e.g., to
close it), and re-initializing will clobber the work_struct state.

Signed-off-by: Sage Weil <sage@inktank.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ceph/mon_client.c |    7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -119,7 +119,6 @@ static void __close_session(struct ceph_
 	dout("__close_session closing mon%d\n", monc->cur_mon);
 	ceph_msg_revoke(monc->m_auth);
 	ceph_con_close(&monc->con);
-	monc->con.private = NULL;
 	monc->cur_mon = -1;
 	monc->pending_auth = 0;
 	ceph_auth_reset(monc->auth);
@@ -142,9 +141,6 @@ static int __open_session(struct ceph_mo
 		monc->sub_renew_after = jiffies;  /* i.e., expired */
 		monc->want_next_osdmap = !!monc->want_next_osdmap;
 
-		ceph_con_init(&monc->con, monc, &mon_con_ops,
-			&monc->client->msgr);
-
 		dout("open_session mon%d opening\n", monc->cur_mon);
 		ceph_con_open(&monc->con,
 			      CEPH_ENTITY_TYPE_MON, monc->cur_mon,
@@ -798,6 +794,9 @@ int ceph_monc_init(struct ceph_mon_clien
 	if (!monc->m_auth)
 		goto out_auth_reply;
 
+	ceph_con_init(&monc->con, monc, &mon_con_ops,
+		      &monc->client->msgr);
+
 	monc->cur_mon = -1;
 	monc->hunting = true;
 	monc->sub_renew_after = jiffies;