xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

libceph: use keepalive2 to verify the mon session is alive

Browse Source 
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Yan, Zheng
2015-09-01 17:19:38 +08:00
committed by Ilya Dryomov
parent d194cd1dd1
commit 8b9558aab8
6 changed files with 93 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
net/ceph/mon_client.c
View File

@@ -149,6 +149,10 @@ static int __open_session(struct ceph_mon_client *monc)
CEPH_ENTITY_TYPE_MON, monc->cur_mon,
&monc->monmap->mon_inst[monc->cur_mon].addr);
/* send an initial keepalive to ensure our timestamp is
* valid by the time we are in an OPENED state */
ceph_con_keepalive(&monc->con);
/* initiatiate authentication handshake */
ret = ceph_auth_build_hello(monc->auth,
monc->m_auth->front.iov_base,
@@ -170,14 +174,19 @@ static bool __sub_expired(struct ceph_mon_client *monc)
*/
static void __schedule_delayed(struct ceph_mon_client *monc)
{
unsigned int delay;
struct ceph_options *opt = monc->client->options;
unsigned long delay;
if (monc->cur_mon < 0 || __sub_expired(monc))
if (monc->cur_mon < 0 || __sub_expired(monc)) {
delay = 10 * HZ;
else
} else {
delay = 20 * HZ;
dout("__schedule_delayed after %u\n", delay);
schedule_delayed_work(&monc->delayed_work, delay);
if (opt->monc_ping_timeout > 0)
delay = min(delay, opt->monc_ping_timeout / 3);
}
dout("__schedule_delayed after %lu\n", delay);
schedule_delayed_work(&monc->delayed_work,
round_jiffies_relative(delay));
}
/*
@@ -743,11 +752,23 @@ static void delayed_work(struct work_struct *work)
__close_session(monc);
__open_session(monc); /* continue hunting */
} else {
ceph_con_keepalive(&monc->con);
struct ceph_options *opt = monc->client->options;
int is_auth = ceph_auth_is_authenticated(monc->auth);
if (ceph_con_keepalive_expired(&monc->con,
opt->monc_ping_timeout)) {
dout("monc keepalive timeout\n");
is_auth = 0;
__close_session(monc);
monc->hunting = true;
__open_session(monc);
}
__validate_auth(monc);
if (!monc->hunting) {
ceph_con_keepalive(&monc->con);
__validate_auth(monc);
}
if (ceph_auth_is_authenticated(monc->auth))
if (is_auth)
__send_subscribe(monc);
}
__schedule_delayed(monc);