72 	int diff, top, bottom, roffset;  in vthistory_seek()  local
89 	roffset = 0; /* Make gcc happy. */  in vthistory_seek()
94 		roffset = top + offset;  in vthistory_seek()
101 		roffset = vb->vb_roffset;  in vthistory_seek()
102 		if (roffset >= bottom + vb->vb_scr_size.tp_row)  in vthistory_seek()
103 			roffset -= vb->vb_history_size;  in vthistory_seek()
105 		roffset += offset;  in vthistory_seek()
106 		roffset = MAX(roffset, top);  in vthistory_seek()
107 		roffset = MIN(roffset, bottom);  in vthistory_seek()
109 		if (roffset < 0)  in vthistory_seek()
110 			roffset = vb->vb_history_size + roffset;  in vthistory_seek()
115 		roffset = vb->vb_curroffset;  in vthistory_seek()
119 	diff = vb->vb_roffset != roffset;  in vthistory_seek()
120 	vb->vb_roffset = roffset;  in vthistory_seek()