359 }
360
361 inline void G1CollectedHeap::set_humongous_is_live(oop obj) {
362 uint region = addr_to_region((HeapWord*)obj);
363 // Clear the flag in the humongous_reclaim_candidates table. Also
364 // reset the entry in the _in_cset_fast_test table so that subsequent references
365 // to the same humongous object do not go into the slow path again.
366 // This is racy, as multiple threads may at the same time enter here, but this
367 // is benign.
368 // During collection we only ever clear the "candidate" flag, and only ever clear the
369 // entry in the in_cset_fast_table.
370 // We only ever evaluate the contents of these tables (in the VM thread) after
371 // having synchronized the worker threads with the VM thread, or in the same
372 // thread (i.e. within the VM thread).
373 if (is_humongous_reclaim_candidate(region)) {
374 set_humongous_reclaim_candidate(region, false);
375 _in_cset_fast_test.clear_humongous(region);
376 }
377 }
378
379 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP
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359 }
360
361 inline void G1CollectedHeap::set_humongous_is_live(oop obj) {
362 uint region = addr_to_region((HeapWord*)obj);
363 // Clear the flag in the humongous_reclaim_candidates table. Also
364 // reset the entry in the _in_cset_fast_test table so that subsequent references
365 // to the same humongous object do not go into the slow path again.
366 // This is racy, as multiple threads may at the same time enter here, but this
367 // is benign.
368 // During collection we only ever clear the "candidate" flag, and only ever clear the
369 // entry in the in_cset_fast_table.
370 // We only ever evaluate the contents of these tables (in the VM thread) after
371 // having synchronized the worker threads with the VM thread, or in the same
372 // thread (i.e. within the VM thread).
373 if (is_humongous_reclaim_candidate(region)) {
374 set_humongous_reclaim_candidate(region, false);
375 _in_cset_fast_test.clear_humongous(region);
376 }
377 }
378
379 inline bool G1CollectedHeap::requires_marking(const void* entry) const {
380 // Includes rejection of NULL pointers.
381 assert(is_in_reserved(entry),
382 err_msg("Non-heap pointer in SATB buffer: " PTR_FORMAT, p2i(entry)));
383
384 HeapRegion* region = heap_region_containing(entry);
385 assert(region != NULL, err_msg("No region for " PTR_FORMAT, p2i(entry)));
386 if (entry >= region->next_top_at_mark_start()) {
387 return false;
388 }
389
390 assert(((oop)entry)->is_oop(true /* ignore mark word */),
391 err_msg("Invalid oop in SATB buffer: " PTR_FORMAT, p2i(entry)));
392
393 return ! isMarkedNext((oop) entry);
394 }
395
396 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP
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