[PATCH 12/13] libceph: fully initialize connection in con_init()

[Alex Elder <elder@inktank.com>]

Move the initialization of a ceph connection's private pointer,
operations vector pointer, and peer name information into
ceph_con_init().  Rearrange the arguments so the connection pointer
is first.  Hide the byte-swapping of the peer entity number inside
ceph_con_init()

Signed-off-by: Alex Elder <elder@inktank.com>
---
  fs/ceph/mds_client.c           |    7 ++-----
  include/linux/ceph/messenger.h |    6 ++++--
  net/ceph/messenger.c           |    9 ++++++++-
  net/ceph/mon_client.c          |    8 +++-----
  net/ceph/osd_client.c          |    7 ++-----
  5 files changed, 19 insertions(+), 18 deletions(-)

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index ad30261..ecd7f15 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -394,11 +394,8 @@ static struct ceph_mds_session 
*register_session(struct ceph_mds_client *mdsc,
  	s->s_seq = 0;
  	mutex_init(&s->s_mutex);

-	ceph_con_init(&mdsc->fsc->client->msgr, &s->s_con);
-	s->s_con.private = s;
-	s->s_con.ops = &mds_con_ops;
-	s->s_con.peer_name.type = CEPH_ENTITY_TYPE_MDS;
-	s->s_con.peer_name.num = cpu_to_le64(mds);
+	ceph_con_init(&s->s_con, s, &mds_con_ops, &mdsc->fsc->client->msgr,
+		CEPH_ENTITY_TYPE_MDS, mds);

  	spin_lock_init(&s->s_gen_ttl_lock);
  	s->s_cap_gen = 0;
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index 5e852f4..dd27837 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -227,8 +227,10 @@ extern void ceph_messenger_init(struct 
ceph_messenger *msgr,
  			u32 required_features,
  			bool nocrc);

-extern void ceph_con_init(struct ceph_messenger *msgr,
-			  struct ceph_connection *con);
+extern void ceph_con_init(struct ceph_connection *con, void *private,
+			const struct ceph_connection_operations *ops,
+			struct ceph_messenger *msgr, __u8 entity_type,
+			__u64 entity_num);
  extern void ceph_con_open(struct ceph_connection *con,
  			  struct ceph_entity_addr *addr);
  extern bool ceph_con_opened(struct ceph_connection *con);
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 7e11b07..cdf8299 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -514,15 +514,22 @@ void ceph_con_put(struct ceph_connection *con)
  /*
   * initialize a new connection.
   */
-void ceph_con_init(struct ceph_messenger *msgr, struct ceph_connection 
*con)
+void ceph_con_init(struct ceph_connection *con, void *private,
+	const struct ceph_connection_operations *ops,
+	struct ceph_messenger *msgr, __u8 entity_type, __u64 entity_num)
  {
  	dout("con_init %p\n", con);
  	memset(con, 0, sizeof(*con));
+	con->private = private;
  	atomic_set(&con->nref, 1);
+	con->ops = ops;
  	con->msgr = msgr;

  	con_sock_state_init(con);

+	con->peer_name.type = (__u8) entity_type;
+	con->peer_name.num = cpu_to_le64(entity_num);
+
  	mutex_init(&con->mutex);
  	INIT_LIST_HEAD(&con->out_queue);
  	INIT_LIST_HEAD(&con->out_sent);
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 77da480..9b4cef9 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -142,11 +142,9 @@ static int __open_session(struct ceph_mon_client *monc)
  		monc->sub_renew_after = jiffies;  /* i.e., expired */
  		monc->want_next_osdmap = !!monc->want_next_osdmap;

-		ceph_con_init(&monc->client->msgr, &monc->con);
-		monc->con.private = monc;
-		monc->con.ops = &mon_con_ops;
-		monc->con.peer_name.type = CEPH_ENTITY_TYPE_MON;
-		monc->con.peer_name.num = cpu_to_le64(monc->cur_mon);
+		ceph_con_init(&monc->con, monc, &mon_con_ops,
+			&monc->client->msgr,
+			CEPH_ENTITY_TYPE_MON, monc->cur_mon);

  		dout("open_session mon%d opening\n", monc->cur_mon);
  		ceph_con_open(&monc->con,
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index e30efbc..1f3951a 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -640,11 +640,8 @@ static struct ceph_osd *create_osd(struct 
ceph_osd_client *osdc, int onum)
  	INIT_LIST_HEAD(&osd->o_osd_lru);
  	osd->o_incarnation = 1;

-	ceph_con_init(&osdc->client->msgr, &osd->o_con);
-	osd->o_con.private = osd;
-	osd->o_con.ops = &osd_con_ops;
-	osd->o_con.peer_name.type = CEPH_ENTITY_TYPE_OSD;
-	osd->o_con.peer_name.num = cpu_to_le64(onum);
+	ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr,
+		CEPH_ENTITY_TYPE_OSD, onum);

  	INIT_LIST_HEAD(&osd->o_keepalive_item);
  	return osd;
-- 
1.7.5.4