with the previous change to allocate off the end of a page, sl_total was never being set to non-zero, so doubling on free didn't work.
with the previous change to allocate off the end of a page, sl_total
was never being set to non-zero, so doubling on free didn't work.


git-svn-id: 712aefb8596620db6486b8151c1cac37df8d9591@31 b0b603af-a30f-0410-a34e-baf09ae79d0b

13693100472/memcached,rhli/memcached,bpzhang/memcached,dustin/memcached,membase/moxi,ZhangZhenhua/memcached,Danzeer/memcached,samt42/memcached,jimwwalker/memcached,mdounin/memcached,cloudrain21/memcached,steveyen/moxi,tmharrisonwang/memcached,samt42/memcached,owendCB/memcached,zbase/moxi,msg7086/repcached,shelsonjava/memcached,neutronsharc/memcached,gencer/memcached,angusfenying/memcached-win64,kamyu104/memcached,EdwardLee03/memcached,Metaswitch/memcached,Distrotech/memcached,kamyu104/memcached,samanbarghi/memcached,myPublicGit/memcached,owendCB/memcached,fengshao0907/memcached,shelsonjava/memcached,mitliucak/memcached,williamcheungthu/memcached,Danzeer/memcached,ClearwaterCore/memcached,mrkwse/memcached,zaycev/memcached,gencer/memcached,allen8807/memcached-1,rhli/memcached,jbergstroem/memcached,13693100472/memcached,saumitra/memcached,neutronsharc/memcached,daverigby/memcached,guikcd/memcached,daverigby/kv_engine,mdounin/memcached,cloudrain21/memcached,steveyen/moxi,DSrcl/memcached,daverigby/memcached,couchbase/moxi,alexandermerritt/memcached,dustin/memcached,tellapart/memcached,neutronsharc/memcached,dianerdianer/memcached,samt42/memcached,alexandermerritt/memcached,Dhruva6/memcached,dianerdianer/memcached,angusfenying/memcached-win64,sagark/memcached-accel,cloudrain21/memcached-1,jeremiahyan/memcached,williamcheungthu/memcached,zbase/moxi,leedc/memcached,memcached/memcached,memcached/memcached,zaycev/memcached,elfchief/memcached,surajdharmapuram/memcached,angusfenying/memcached-win64,osheroff/memcached_kdtree,EdwardLee03/memcached,membase/moxi,samanbarghi/memcached,jeremiahyan/memcached,alexandermerritt/memcached,Distrotech/memcached,bpzhang/memcached,zbase/memcached,msg7086/repcached,leedc/memcached,abhinavdangeti/memcached,guikcd/memcached,membase/moxi,guikcd/memcached,tmharrisonwang/memcached,msg7086/repcached,steveyen/moxi,dustin/memcached,abhinavdangeti/memcached,couchbase/memcached,zbase/memcached,tmharrisonwang/memcached,ZhangZhenhua/memcached,couchbase/moxi,owendCB/memcached,DigitalAce/memcached,couchbase/memcached,emcconville/memcached,dianerdianer/memcached,tellapart/memcached,13693100472/memcached,williamcheungthu/memcached,couchbase/memcached,DSrcl/memcached,zbase/moxi,mitliucak/memcached,cloudrain21/memcached,emcconville/memcached,steveyen/moxi,romanticode/memcached,couchbase/moxi,elfchief/memcached,daverigby/memcached,elfchief/memcached,fengshao0907/memcached,tellapart/memcached,mrkwse/memcached,abhinavdangeti/memcached,Metaswitch/memcached,guikcd/memcached,ZhangZhenhua/memcached,cloudrain21/memcached-1,membase/moxi,zbase/moxi,steveyen/moxi,tomykaira/memcached,sagark/memcached-accel,couchbase/moxi,Danzeer/memcached,romanticode/memcached,shelsonjava/memcached,couchbase/memcached,gencer/memcached,Dhruva6/memcached,sagark/memcached-accel,leedc/memcached,bpzhang/memcached,surajdharmapuram/memcached,bpzhang/memcached,tmharrisonwang/memcached,tomykaira/memcached,gencer/memcached,amyvmiwei/memcached,saumitra/memcached,elfchief/memcached,dkrotx/memcached-dd,samanbarghi/memcached,tomykaira/memcached,xiaosl/memcached,rmccullagh/memcached,rmccullagh/memcached,allen8807/memcached-1,DSrcl/memcached,williamcheungthu/memcached,mitliucak/memcached,13693100472/memcached,xiaosl/memcached,Metaswitch/memcached,samanbarghi/memcached,osheroff/memcached_kdtree,emcconville/memcached,memcached/memcached,niaomingjian/memcached,fengshao0907/memcached,rmccullagh/memcached,dormando/memcached,owendCB/memcached,rmccullagh/memcached,shelsonjava/memcached,cloudrain21/memcached-1,zbase/memcached,xiaosl/memcached,msg7086/repcached,Distrotech/memcached,mrkwse/memcached,tomykaira/memcached,mdounin/memcached,dianerdianer/memcached,ClearwaterCore/memcached,jeremiahyan/memcached,amyvmiwei/memcached,memcached/memcached,rhli/memcached,abhinavdangeti/memcached,leverich/memcached-affinity,membase/moxi,niaomingjian/memcached,amyvmiwei/memcached,daverigby/kv_engine,sagark/memcached-accel,zaycev/memcached,EdwardLee03/memcached,niaomingjian/memcached,membase/moxi,neutronsharc/memcached,rhli/memcached,xiaosl/memcached,mitliucak/memcached,memcached/memcached,elfchief/memcached,daverigby/kv_engine,jimwwalker/memcached,dormando/memcached,zaycev/memcached,guikcd/memcached,jimwwalker/memcached,leverich/memcached-affinity,angusfenying/memcached-win64,cloudrain21/memcached-1,zbase/moxi,dkrotx/memcached-dd,13693100472/memcached,zbase/memcached,ClearwaterCore/memcached,dormando/memcached,cloudrain21/memcached,jbergstroem/memcached,kamyu104/memcached,jbergstroem/memcached,Metaswitch/memcached,ClearwaterCore/memcached,zbase/memcached,Metaswitch/memcached,dormando/memcached,sagark/memcached-accel,surajdharmapuram/memcached,leverich/memcached-affinity,kamyu104/memcached,myPublicGit/memcached,abhinavdangeti/memcached,alexandermerritt/memcached,dormando/memcached,daverigby/kv_engine,ZhangZhenhua/memcached,romanticode/memcached,allen8807/memcached-1,amyvmiwei/memcached,DigitalAce/memcached,EdwardLee03/memcached,Danzeer/memcached,DSrcl/memcached,samt42/memcached,dkrotx/memcached-dd,osheroff/memcached_kdtree,dkrotx/memcached-dd,rmccullagh/memcached,daverigby/memcached,emcconville/memcached,couchbase/moxi,couchbase/moxi,Dhruva6/memcached,allen8807/memcached-1,fengshao0907/memcached,DigitalAce/memcached,romanticode/memcached,myPublicGit/memcached,gencer/memcached,myPublicGit/memcached,msg7086/repcached,Dhruva6/memcached,niaomingjian/memcached,jeremiahyan/memcached,saumitra/memcached,leedc/memcached,surajdharmapuram/memcached,mrkwse/memcached