version_lock 910 fs/ocfs2/stack_user.c ret = version_lock(conn, DLM_LOCK_EX, version_lock 916 fs/ocfs2/stack_user.c version_lock(conn, DLM_LOCK_PR, DLM_LKF_CONVERT|DLM_LKF_VALBLK); version_lock 918 fs/ocfs2/stack_user.c ret = version_lock(conn, DLM_LOCK_PR, DLM_LKF_VALBLK);