/*
* The monitor responds with mount ack indicate mount success. The
* included client ticket allows the client to talk to MDSs and OSDs.
*/
static void ceph_monc_handle_map(struct ceph_mon_client *monc,
struct ceph_msg *msg)
{
struct ceph_client *client = monc->client;
struct ceph_monmap *monmap = NULL, *old = monc->monmap;
void *p, *end;
int had_debugfs_info, init_debugfs = 0;
mutex_lock(&monc->mutex);
had_debugfs_info = have_debugfs_info(monc);
dout("handle_monmap\n");
p = msg->front.iov_base;
end = p + msg->front.iov_len;
monmap = ceph_monmap_decode(p, end);
if (IS_ERR(monmap)) {
pr_err("problem decoding monmap, %d\n",
(int)PTR_ERR(monmap));
goto out;
}
if (ceph_check_fsid(monc->client, &monmap->fsid) < 0) {
kfree(monmap);
goto out;
}
client->monc.monmap = monmap;
kfree(old);
if (!client->have_fsid) {
client->have_fsid = true;
if (!had_debugfs_info && have_debugfs_info(monc)) {
pr_info("client%lld fsid %pU\n",
ceph_client_id(monc->client),
&monc->client->fsid);
init_debugfs = 1;
}
mutex_unlock(&monc->mutex);
if (init_debugfs) {
/*
* do debugfs initialization without mutex to avoid
* creating a locking dependency
*/
ceph_debugfs_client_init(monc->client);
}
goto out_unlocked;
}
out:
mutex_unlock(&monc->mutex);
out_unlocked:
wake_up_all(&client->auth_wq);
}
/*
* Initially learn our fsid, or verify an fsid matches.
*/
int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid)
{
if (client->have_fsid) {
if (ceph_fsid_compare(&client->fsid, fsid)) {
pr_err("bad fsid, had %pU got %pU",
&client->fsid, fsid);
return -1;
}
} else {
pr_info("client%lld fsid %pU\n", ceph_client_id(client), fsid);
memcpy(&client->fsid, fsid, sizeof(*fsid));
ceph_debugfs_client_init(client);
client->have_fsid = true;
}
return 0;
}
static void ceph_monc_handle_map(struct ceph_mon_client *monc,
struct ceph_msg *msg)
{
struct ceph_client *client = monc->client;
struct ceph_monmap *monmap = NULL, *old = monc->monmap;
void *p, *end;
mutex_lock(&monc->mutex);
dout("handle_monmap\n");
p = msg->front.iov_base;
end = p + msg->front.iov_len;
monmap = ceph_monmap_decode(p, end);
if (IS_ERR(monmap)) {
pr_err("problem decoding monmap, %d\n",
(int)PTR_ERR(monmap));
goto out;
}
if (ceph_check_fsid(monc->client, &monmap->fsid) < 0) {
kfree(monmap);
goto out;
}
client->monc.monmap = monmap;
kfree(old);
if (!client->have_fsid) {
client->have_fsid = true;
mutex_unlock(&monc->mutex);
ceph_debugfs_client_init(client);
goto out_unlocked;
}
out:
mutex_unlock(&monc->mutex);
out_unlocked:
wake_up_all(&client->auth_wq);
}
