Lines Matching defs:rotor

713 	vmem_seg_t *vsp, *rotor;
726 	 * The common case is that the segment right after the rotor is free,
730 	 * address of the victim segment.  Instead of moving the rotor, we
731 	 * create the new segment structure *behind the rotor*, which has
733 	 * the rotor's neighbors because the new segment lies between them.
735 	rotor = &vmp->vm_rotor;
736 	vsp = rotor->vs_anext;
743 		    vmem_seg_create(vmp, rotor->vs_aprev, addr, addr + size));
749 	 * Starting at the rotor, look for a segment large enough to
757 		if (vsp == rotor) {
762 			 * there's actually enough space, but the rotor itself
765 			 * we advance the rotor and see if that liberates a
768 			vmem_advance(vmp, rotor, rotor->vs_anext);
769 			vsp = rotor->vs_aprev;
788 			vsp = rotor->vs_anext;
801 	 * Advance the rotor to right after the newly-allocated segment.
804 	vmem_advance(vmp, rotor, vsp);