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8039596: Remove HeapRegionRemSet::clear_incoming_entry

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The mentioned method is never used and out of date. So it is removed.

Reviewed-by: mgerdin, brutisso
This commit is contained in:
Thomas Schatzl 2014-04-16 10:56:17 +02:00
parent 42e4a6003c
commit d9a4d02abe
2 changed files with 0 additions and 27 deletions
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24
hotspot/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp
View file

@ -768,30 +768,6 @@ void OtherRegionsTable::clear() {
clear_fcc(); clear_fcc();
} }
void OtherRegionsTable::clear_incoming_entry(HeapRegion* from_hr) {
MutexLockerEx x(_m, Mutex::_no_safepoint_check_flag);
size_t hrs_ind = (size_t) from_hr->hrs_index();
size_t ind = hrs_ind & _mod_max_fine_entries_mask;
if (del_single_region_table(ind, from_hr)) {
assert(!_coarse_map.at(hrs_ind), "Inv");
} else {
_coarse_map.par_at_put(hrs_ind, 0);
}
// Check to see if any of the fcc entries come from here.
uint hr_ind = hr()->hrs_index();
for (uint tid = 0; tid < HeapRegionRemSet::num_par_rem_sets(); tid++) {
int fcc_ent = FromCardCache::at(tid, hr_ind);
if (fcc_ent != FromCardCache::InvalidCard) {
HeapWord* card_addr = (HeapWord*)
(uintptr_t(fcc_ent) << CardTableModRefBS::card_shift);
if (hr()->is_in_reserved(card_addr)) {
// Clear the from card cache.
FromCardCache::set(tid, hr_ind, FromCardCache::InvalidCard);
}
}
}
}
bool OtherRegionsTable::del_single_region_table(size_t ind, bool OtherRegionsTable::del_single_region_table(size_t ind,
HeapRegion* hr) { HeapRegion* hr) {
assert(0 <= ind && ind < _max_fine_entries, "Preconditions."); assert(0 <= ind && ind < _max_fine_entries, "Preconditions.");

3
hotspot/src/share/vm/gc_implementation/g1/heapRegionRemSet.hpp
View file

@ -206,9 +206,6 @@ public:
// Specifically clear the from_card_cache. // Specifically clear the from_card_cache.
void clear_fcc(); void clear_fcc();
// "from_hr" is being cleared; remove any entries from it.
void clear_incoming_entry(HeapRegion* from_hr);
void do_cleanup_work(HRRSCleanupTask* hrrs_cleanup_task); void do_cleanup_work(HRRSCleanupTask* hrrs_cleanup_task);
// Declare the heap size (in # of regions) to the OtherRegionsTable. // Declare the heap size (in # of regions) to the OtherRegionsTable.