8183121: Add information about scanned and skipped cards during UpdateRS
Summary: Log the number of scanned and skipped cards for the UpdateRS phase too.
Reviewed-by: mgerdin, sangheki

8183539: Remove G1RemSet::_into_cset_dirty_card_queue_set
Reviewed-by: tschatzl, mgerdin

8179679: Rearrange filters before card scanning
Summary: Implement micro-optimizations in the card scanning code enabled by JDK-8177044.
Reviewed-by: sjohanss, ehelin

8179677: Let G1Remset::_conc_refined_cards only count number of cards concurrently refined
Reviewed-by: sjohanss, ehelin

8183394: Remove unused G1RemSet::n_workers() method
Reviewed-by: mgerdin, ehelin

8153360: G1HRRSFlushLogBuffersOnVerify with remembered set verification does not work
Reviewed-by: sjohanss, tschatzl

8178151: Clean up G1RemSet files
Summary: Remove unnecessary class members, improve method visibility and naming
Reviewed-by: ehelin, sjohanss

8175554: Improve G1UpdateRSOrPushRefClosure
Summary: Micro-optimizations and improving naming for the G1UpdateRSOrPushRefClosure
Reviewed-by: ehelin, sangheki

8178148: Log more detailed information about scan rs phase
Summary: Add logging about the number of cards actually scanned, claimed and skipped during the Scan RS phase
Reviewed-by: ehelin, sangheki

8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
Reviewed-by: ehelin, kbarrett

8162928: Micro-optimizations in scanning the remembered sets
Reviewed-by: ehelin, kbarrett

8168038: Some methods in G1RemSet are virtual unnecessarily
Summary: G1RemSet has a number of virtual functions, yet is derived from CHeapObj and has no subclasses.
Reviewed-by: kbarrett, tschatzl

8155524: HotCardCache shouldn't be part of ConcurrentG1Refine
Summary: Make G1CollectedHeap owner of HotCardCache.
Reviewed-by: jmasa, mgerdin, tschatzl

8153503: Move remset scan iteration claim to remset local data structure
Reviewed-by: drwhite, mgerdin

8154154: Separate G1 specific policy code from the CollectorPolicy class hierarchy
Summary: Move G1 runtime policy code to new class G1Policy which is unrelated to CollectorPolicy
Reviewed-by: kbarrett, ehelin

8151386: Extract card live data out of G1ConcurrentMark
Summary: Move card live data management out of G1ConcurrentMark into extra class G1CardLiveData managed by G1RemSet
Reviewed-by: mgerdin, kbarrett

8146399: Refactor the BlockOffsetTable classes.
Reviewed-by: mgerdin, jwilhelm, tschatzl

8145672: Remove dependency of G1FromCardCache to HeapRegionRemSet
Summary: Move HeapRegionRemSet::num_par_rem_sets() to G1RemSet, and document it.
Reviewed-by: mgerdin, jmasa

8145674: Fix includes and forward declarations in g1Remset files
Reviewed-by: simonis, stefank

8144908: Remove apply_to_weak_ref_discovered_field override for UpdateRSOopClosure
Reviewed-by: kbarrett, jmasa

8145092: Use Unified Logging for the GC logging
Summary: JEP-271. VM changes contributed by brutisso, test changes contributed by david.
Reviewed-by: sjohanss, david, brutisso
Contributed-by: bengt.rutisson@oracle.com, david.lindholm@oralce.com

8141135: Remove G1RemSet::write_ref
Summary: Remove unused memembers of G1RemSet
Reviewed-by: kbarrett, tschatzl

8142390: Move ScanRSClosure to header file
Reviewed-by: jmasa, tschatzl

8141434: G1CollectedHeap::into_cset_dirty_card_queue_set should be moved to G1RemSet
Reviewed-by: tschatzl, mgerdin

8138762: Refactor setup of evacuation closures in G1
Summary: Introduce policy class containing the root scan closures.
Reviewed-by: ehelin, stefank

8135154: Move cards scanned and surviving young words aggregation to G1ParScanThreadStateSet
Reviewed-by: tschatzl, ehelin

8135012: Don't use G1RootProcessor when scanning remembered sets
Reviewed-by: jmasa, ecaspole

8079792: GC directory structure cleanup
Reviewed-by: brutisso, stefank, david