luck/tmp_suning_uos_patched
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libceph: introduce and switch to reopen_session()

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hunting is now set in __open_session() and cleared in finish_hunting(),
instead of all around.  The "session lost" message is printed not only
on connection resets, but also on keepalive timeouts.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Ilya Dryomov 2016-01-21 16:33:25 +01:00
parent 168b9090c7
commit 1752b50ca2
1 changed files with 16 additions and 17 deletions
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33
net/ceph/mon_client.c
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@ -171,6 +171,7 @@ static void __open_session(struct ceph_mon_client *monc)
pick_new_mon(monc);
monc->hunting = true;
if (monc->had_a_connection) {
monc->hunt_mult *= CEPH_MONC_HUNT_BACKOFF;
if (monc->hunt_mult > CEPH_MONC_HUNT_MAX_MULT)
@ -198,6 +199,16 @@ static void __open_session(struct ceph_mon_client *monc)
__send_prepared_auth_request(monc, ret);
}
static void reopen_session(struct ceph_mon_client *monc)
{
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));
__close_session(monc);
__open_session(monc);
}
/*
* Reschedule delayed work timer.
*/
@ -788,17 +799,15 @@ static void delayed_work(struct work_struct *work)
dout("monc delayed_work\n");
mutex_lock(&monc->mutex);
if (monc->hunting) {
__close_session(monc);
__open_session(monc); /* continue hunting */
dout("%s continuing hunt\n", __func__);
reopen_session(monc);
} else {
int is_auth = ceph_auth_is_authenticated(monc->auth);
if (ceph_con_keepalive_expired(&monc->con,
CEPH_MONC_PING_TIMEOUT)) {
dout("monc keepalive timeout\n");
is_auth = 0;
__close_session(monc);
monc->hunting = true;
__open_session(monc);
reopen_session(monc);
}
if (!monc->hunting) {
@ -900,9 +909,6 @@ int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl)
&monc->client->msgr);
monc->cur_mon = -1;
monc->hunting = true;
monc->sub_renew_after = jiffies;
monc->sub_renew_sent = 0;
monc->had_a_connection = false;
monc->hunt_mult = 1;
@ -1157,16 +1163,9 @@ static void mon_fault(struct ceph_connection *con)
if (!con->private)
goto out;
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));
__close_session(monc);
if (!monc->hunting) {
/* start hunting */
monc->hunting = true;
__open_session(monc);
dout("%s hunting for new mon\n", __func__);
reopen_session(monc);
} else {
/* already hunting, let's wait a bit */
__schedule_delayed(monc);