Fix several ppage issues: 1)range collapse and marking as full 2)cache_advise() failing to prope ppages
Fix several ppage issues: 1)range collapse and marking as full 2)cache_advise() failing to prope ppages

accre/lstore,accre/lstore,PerilousApricot/lstore,accre/lstore,tacketar/lstore,PerilousApricot/lstore,tacketar/lstore,PerilousApricot/lstore,accre/lstore,tacketar/lstore,tacketar/lstore,PerilousApricot/lstore