VOLUME_DISABLED
atomic_read(&osb->vol_state) == VOLUME_DISABLED);
if (atomic_read(&osb->vol_state) == VOLUME_DISABLED) {
trace_ocfs2_wait_on_mount(VOLUME_DISABLED);
atomic_set(&osb->vol_state, VOLUME_DISABLED);
atomic_set(&osb->vol_state, VOLUME_DISABLED);