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src/hotspot/share/gc/shared/satbMarkQueue.cpp

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*** 134,144 **** do { old = value; value += 2; assert(value > old, "overflow"); if (value > threshold) value |= 1; ! value = Atomic::cmpxchg(value, cfptr, old); } while (value != old); } // Decrement count. If count == 0, clear flag, else maintain flag. static void decrement_count(volatile size_t* cfptr) { --- 134,144 ---- do { old = value; value += 2; assert(value > old, "overflow"); if (value > threshold) value |= 1; ! value = Atomic::cmpxchg(cfptr, old, value); } while (value != old); } // Decrement count. If count == 0, clear flag, else maintain flag. static void decrement_count(volatile size_t* cfptr) {
*** 147,157 **** do { assert((value >> 1) != 0, "underflow"); old = value; value -= 2; if (value <= 1) value = 0; ! value = Atomic::cmpxchg(value, cfptr, old); } while (value != old); } void SATBMarkQueueSet::set_process_completed_buffers_threshold(size_t value) { // Scale requested threshold to align with count field. If scaling --- 147,157 ---- do { assert((value >> 1) != 0, "underflow"); old = value; value -= 2; if (value <= 1) value = 0; ! value = Atomic::cmpxchg(cfptr, old, value); } while (value != old); } void SATBMarkQueueSet::set_process_completed_buffers_threshold(size_t value) { // Scale requested threshold to align with count field. If scaling
*** 327,337 **** tty->cr(); } #endif // PRODUCT void SATBMarkQueueSet::abandon_completed_buffers() { ! Atomic::store(size_t(0), &_count_and_process_flag); BufferNode* buffers_to_delete = _list.pop_all(); while (buffers_to_delete != NULL) { BufferNode* bn = buffers_to_delete; buffers_to_delete = bn->next(); bn->set_next(NULL); --- 327,337 ---- tty->cr(); } #endif // PRODUCT void SATBMarkQueueSet::abandon_completed_buffers() { ! Atomic::store(&_count_and_process_flag, size_t(0)); BufferNode* buffers_to_delete = _list.pop_all(); while (buffers_to_delete != NULL) { BufferNode* bn = buffers_to_delete; buffers_to_delete = bn->next(); bn->set_next(NULL);
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