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libceph: un-backoff on tick when we have a authenticated session 

This means that if we do some backoff, then authenticate, and are
healthy for an extended period of time, a subsequent failure won't
leave us starting our hunting sequence with a large backoff.

Mirrors ceph.git commit d466bc6e66abba9b464b0b69687cf45c9dccf383.

Cc: stable@vger.kernel.org # 4.7+
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jason Dillaman <dillaman@redhat.com>
zero-colors
Ilya Dryomov 2018-04-23 15:25:10 +02:00
parent f191982689
commit facb9f6eba
1 changed files with 10 additions and 3 deletions
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13
net/ceph/mon_client.c
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@ -209,6 +209,14 @@ static void reopen_session(struct ceph_mon_client *monc)
__open_session(monc);
}
static void un_backoff(struct ceph_mon_client *monc)
{
monc->hunt_mult /= 2; /* reduce by 50% */
if (monc->hunt_mult < 1)
monc->hunt_mult = 1;
dout("%s hunt_mult now %d\n", __func__, monc->hunt_mult);
}
/*
* Reschedule delayed work timer.
*/
@ -963,6 +971,7 @@ static void delayed_work(struct work_struct *work)
if (!monc->hunting) {
ceph_con_keepalive(&monc->con);
__validate_auth(monc);
un_backoff(monc);
}
if (is_auth &&
@ -1123,9 +1132,7 @@ static void finish_hunting(struct ceph_mon_client *monc)
dout("%s found mon%d\n", __func__, monc->cur_mon);
monc->hunting = false;
monc->had_a_connection = true;
monc->hunt_mult /= 2; /* reduce by 50% */
if (monc->hunt_mult < 1)
monc->hunt_mult = 1;
un_backoff(monc);
}
}