fix freelist loop check and cleanup code
fix freelist loop check and cleanup code

persiaAziz/trafficserver,persiaAziz/trafficserver,dyrock/trafficserver,bryancall/trafficserver,vmamidi/trafficserver,SolidWallOfCode/trafficserver,pbchou/trafficserver,SolidWallOfCode/trafficserver,davidbz/trafficserver,persiaAziz/trafficserver,duke8253/trafficserver,davidbz/trafficserver,vmamidi/trafficserver,dyrock/trafficserver,duke8253/trafficserver,bryancall/trafficserver,persiaAziz/trafficserver,chitianhao/trafficserver,persiaAziz/trafficserver,chitianhao/trafficserver,SolidWallOfCode/trafficserver,bryancall/trafficserver,SolidWallOfCode/trafficserver,bryancall/trafficserver,pbchou/trafficserver,duke8253/trafficserver,persiaAziz/trafficserver,duke8253/trafficserver,vmamidi/trafficserver,vmamidi/trafficserver,pbchou/trafficserver,duke8253/trafficserver,chitianhao/trafficserver,persiaAziz/trafficserver,chitianhao/trafficserver,chitianhao/trafficserver,pbchou/trafficserver,dyrock/trafficserver,vmamidi/trafficserver,davidbz/trafficserver,dyrock/trafficserver,SolidWallOfCode/trafficserver,pbchou/trafficserver,davidbz/trafficserver,chitianhao/trafficserver,duke8253/trafficserver,davidbz/trafficserver,dyrock/trafficserver,duke8253/trafficserver,bryancall/trafficserver,dyrock/trafficserver,davidbz/trafficserver,vmamidi/trafficserver,pbchou/trafficserver,bryancall/trafficserver,persiaAziz/trafficserver,dyrock/trafficserver,SolidWallOfCode/trafficserver,chitianhao/trafficserver,SolidWallOfCode/trafficserver