ceph: protect kick_requests() with mdsc->mutex

Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index f751fea..267ba44 100644 (file)
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2471,9 +2471,8 @@ static void handle_session(struct ceph_mds_session *session,
                if (session->s_state == CEPH_MDS_SESSION_RECONNECTING)
                        pr_info("mds%d reconnect denied\n", session->s_mds);
                remove_session_caps(session);
-               wake = 1; /* for good measure */
+               wake = 2; /* for good measure */
                wake_up_all(&mdsc->session_close_wq);
-               kick_requests(mdsc, mds);
                break;
 
        case CEPH_SESSION_STALE:
@@ -2503,6 +2502,8 @@ static void handle_session(struct ceph_mds_session *session,
        if (wake) {
                mutex_lock(&mdsc->mutex);
                __wake_requests(mdsc, &session->s_waiting);
+               if (wake == 2)
+                       kick_requests(mdsc, mds);
                mutex_unlock(&mdsc->mutex);
        }
        return;