ceph: handle SESSION_FORCE_RO message

[deliverable/linux.git] / fs / ceph / mds_client.c

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index d2171f4a698072d34bad5f68be85c3ae4aa19914..c6c33b411a2f7f7679af20038bcecf5cad5ed4a6 100644 (file)
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2580,6 +2580,14 @@ static void handle_session(struct ceph_mds_session *session,
                send_flushmsg_ack(mdsc, session, seq);
                break;
 
+       case CEPH_SESSION_FORCE_RO:
+               dout("force_session_readonly %p\n", session);
+               spin_lock(&session->s_cap_lock);
+               session->s_readonly = true;
+               spin_unlock(&session->s_cap_lock);
+               wake_up_session_caps(session, 0);
+               break;
+
        default:
                pr_err("mdsc_handle_session bad op %d mds%d\n", op, mds);
                WARN_ON(1);
@@ -2791,6 +2799,8 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc,
        spin_unlock(&session->s_gen_ttl_lock);
 
        spin_lock(&session->s_cap_lock);
+       /* don't know if session is readonly */
+       session->s_readonly = 0;
        /*
         * notify __ceph_remove_cap() that we are composing cap reconnect.
         * If a cap get released before being added to the cap reconnect,