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authorSage Weil <sage@newdream.net>2011-08-09 09:27:44 -0700
committerSage Weil <sage@newdream.net>2011-10-25 16:10:15 -0700
commitf6a2f5be07463ef532b9f4e3cb9e42ab9df85832 (patch)
tree2e0bc35d64631705fffded5f93f9345ff0f0587f /net
parent6ab00d465a1c8c02c2216f8220727282f3aa50b5 (diff)
downloadlinux-f6a2f5be07463ef532b9f4e3cb9e42ab9df85832.tar.bz2
libceph: always preallocate mon connection
Allocate the mon connection on init. We already reuse it across reconnects. Remove now unnecessary (and incomplete) NULL checks. Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'net')
-rw-r--r--net/ceph/mon_client.c47
1 files changed, 22 insertions, 25 deletions
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index cbe31fa45508..556721665335 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -116,14 +116,12 @@ static void __send_prepared_auth_request(struct ceph_mon_client *monc, int len)
*/
static void __close_session(struct ceph_mon_client *monc)
{
- if (monc->con) {
- dout("__close_session closing mon%d\n", monc->cur_mon);
- ceph_con_revoke(monc->con, monc->m_auth);
- ceph_con_close(monc->con);
- monc->cur_mon = -1;
- monc->pending_auth = 0;
- ceph_auth_reset(monc->auth);
- }
+ dout("__close_session closing mon%d\n", monc->cur_mon);
+ ceph_con_revoke(monc->con, monc->m_auth);
+ ceph_con_close(monc->con);
+ monc->cur_mon = -1;
+ monc->pending_auth = 0;
+ ceph_auth_reset(monc->auth);
}
/*
@@ -302,15 +300,6 @@ void ceph_monc_request_next_osdmap(struct ceph_mon_client *monc)
*/
int ceph_monc_open_session(struct ceph_mon_client *monc)
{
- if (!monc->con) {
- monc->con = kmalloc(sizeof(*monc->con), GFP_KERNEL);
- if (!monc->con)
- return -ENOMEM;
- ceph_con_init(monc->client->msgr, monc->con);
- monc->con->private = monc;
- monc->con->ops = &mon_con_ops;
- }
-
mutex_lock(&monc->mutex);
__open_session(monc);
__schedule_delayed(monc);
@@ -755,7 +744,13 @@ int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl)
if (err)
goto out;
- monc->con = NULL;
+ /* connection */
+ monc->con = kmalloc(sizeof(*monc->con), GFP_KERNEL);
+ if (!monc->con)
+ goto out_monmap;
+ ceph_con_init(monc->client->msgr, monc->con);
+ monc->con->private = monc;
+ monc->con->ops = &mon_con_ops;
/* authentication */
monc->auth = ceph_auth_init(cl->options->name,
@@ -772,7 +767,7 @@ int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl)
sizeof(struct ceph_mon_subscribe_ack),
GFP_NOFS);
if (!monc->m_subscribe_ack)
- goto out_monmap;
+ goto out_con;
monc->m_subscribe = ceph_msg_new(CEPH_MSG_MON_SUBSCRIBE, 96, GFP_NOFS);
if (!monc->m_subscribe)
@@ -808,6 +803,8 @@ out_subscribe:
ceph_msg_put(monc->m_subscribe);
out_subscribe_ack:
ceph_msg_put(monc->m_subscribe_ack);
+out_con:
+ monc->con->ops->put(monc->con);
out_monmap:
kfree(monc->monmap);
out:
@@ -822,11 +819,11 @@ void ceph_monc_stop(struct ceph_mon_client *monc)
mutex_lock(&monc->mutex);
__close_session(monc);
- if (monc->con) {
- monc->con->private = NULL;
- monc->con->ops->put(monc->con);
- monc->con = NULL;
- }
+
+ monc->con->private = NULL;
+ monc->con->ops->put(monc->con);
+ monc->con = NULL;
+
mutex_unlock(&monc->mutex);
ceph_auth_destroy(monc->auth);
@@ -1000,7 +997,7 @@ static void mon_fault(struct ceph_connection *con)
if (!con->private)
goto out;
- if (monc->con && !monc->hunting)
+ if (!monc->hunting)
pr_info("mon%d %s session lost, "
"hunting for new mon\n", monc->cur_mon,
ceph_pr_addr(&monc->con->peer_addr.in_addr));