+static int mds_sessions_show(struct seq_file *s, void *ptr)
+{
+ struct ceph_fs_client *fsc = s->private;
+ struct ceph_mds_client *mdsc = fsc->mdsc;
+ struct ceph_auth_client *ac = fsc->client->monc.auth;
+ struct ceph_options *opt = fsc->client->options;
+ int mds = -1;
+
+ mutex_lock(&mdsc->mutex);
+
+ /* The 'num' portion of an 'entity name' */
+ seq_printf(s, "global_id %llu\n", ac->global_id);
+
+ /* The -o name mount argument */
+ seq_printf(s, "name \"%s\"\n", opt->name ? opt->name : "");
+
+ /* The list of MDS session rank+state */
+ for (mds = 0; mds < mdsc->max_sessions; mds++) {
+ struct ceph_mds_session *session =
+ __ceph_lookup_mds_session(mdsc, mds);
+ if (!session) {
+ continue;
+ }
+ mutex_unlock(&mdsc->mutex);
+ seq_printf(s, "mds.%d %s\n",
+ session->s_mds,
+ ceph_session_state_name(session->s_state));
+
+ ceph_put_mds_session(session);
+ mutex_lock(&mdsc->mutex);
+ }
+ mutex_unlock(&mdsc->mutex);
+
+ return 0;
+}
+