C++ (Cpp) delete_from_adj_tree示例

示例#1

/*
 * compare_swap_oom_score_adj() - compare and swap current's oom_score_adj
 * @old_val: old oom_score_adj for compare
 * @new_val: new oom_score_adj for swap
 *
 * Sets the oom_score_adj value for current to @new_val iff its present value is
 * @old_val.  Usually used to reinstate a previous value to prevent racing with
 * userspacing tuning the value in the interim.
 */
void compare_swap_oom_score_adj(int old_val, int new_val)
{
	struct sighand_struct *sighand = current->sighand;

	spin_lock_irq(&sighand->siglock);
	if (current->signal->oom_score_adj == old_val) {
		current->signal->oom_score_adj = new_val;
		delete_from_adj_tree(current);
		add_2_adj_tree(current);
	}
	spin_unlock_irq(&sighand->siglock);
}

示例#2

/**
 * test_set_oom_score_adj() - set current's oom_score_adj and return old value
 * @new_val: new oom_score_adj value
 *
 * Sets the oom_score_adj value for current to @new_val with proper
 * synchronization and returns the old value.  Usually used to temporarily
 * set a value, save the old value in the caller, and then reinstate it later.
 */
int test_set_oom_score_adj(int new_val)
{
	struct sighand_struct *sighand = current->sighand;
	int old_val;

	spin_lock_irq(&sighand->siglock);
	old_val = current->signal->oom_score_adj;
	current->signal->oom_score_adj = new_val;
	delete_from_adj_tree(current);
	add_2_adj_tree(current);
	trace_oom_score_adj_update(current);
	spin_unlock_irq(&sighand->siglock);

	return old_val;
}

示例#3

/*
 * compare_swap_oom_score_adj() - compare and swap current's oom_score_adj
 * @old_val: old oom_score_adj for compare
 * @new_val: new oom_score_adj for swap
 *
 * Sets the oom_score_adj value for current to @new_val iff its present value is
 * @old_val.  Usually used to reinstate a previous value to prevent racing with
 * userspacing tuning the value in the interim.
 */
void compare_swap_oom_score_adj(short old_val, short new_val)
{
	struct sighand_struct *sighand = current->sighand;

	spin_lock_irq(&sighand->siglock);
	if (current->signal->oom_score_adj == old_val) {
		current->signal->oom_score_adj = new_val;
#ifdef CONFIG_ANDROID_LMK_ADJ_RBTREE
		delete_from_adj_tree(current);
		add_2_adj_tree(current);
#endif
	}
	trace_oom_score_adj_update(current);
	spin_unlock_irq(&sighand->siglock);
}

示例#4

/**
 * test_set_oom_score_adj() - set current's oom_score_adj and return old value
 * @new_val: new oom_score_adj value
 *
 * Sets the oom_score_adj value for current to @new_val with proper
 * synchronization and returns the old value.  Usually used to temporarily
 * set a value, save the old value in the caller, and then reinstate it later.
 */
short test_set_oom_score_adj(short new_val)
{
	struct sighand_struct *sighand = current->sighand;
	int old_val;

	spin_lock_irq(&sighand->siglock);
	old_val = current->signal->oom_score_adj;
	current->signal->oom_score_adj = new_val;
#ifdef CONFIG_ANDROID_LMK_ADJ_RBTREE
	delete_from_adj_tree(current);
	add_2_adj_tree(current);
#endif
	trace_oom_score_adj_update(current);
	spin_unlock_irq(&sighand->siglock);

	return old_val;
}