bufobj_wwait
error = bufobj_wwait(bo, slpflag, slptimeo);
error = bufobj_wwait(bo, slpflag, slptimeo);
bufobj_wwait(bo, 0, 0);
bufobj_wwait(bo, 0, 0);
bufobj_wwait(bo, 0, 0);
int bufobj_wwait(struct bufobj *bo, int slpflag, int timeo);
error = bufobj_wwait(&vp->v_bufobj, 0, 0);
(void)bufobj_wwait(&vp->v_bufobj, 0, 0);
bufobj_wwait(bo, 0, 0);