kmemleak: free internal objects only if there're no leaks to be reported (dc9b3f42) · Commits · 戴 / test

mm/kmemleak.c

+9 −4

Original line number	Diff line number	Diff line
		@@ -218,7 +218,8 @@ static int kmemleak_stack_scan = 1;
		static DEFINE_MUTEX(scan_mutex);
		/* setting kmemleak=on, will set this var, skipping the disable */
		static int kmemleak_skip_disable;

		/* If there are leaks that can be reported */
		static bool kmemleak_found_leaks;

		/*
		* Early object allocation/freeing logging. Kmemleak is initialized after the
		@@ -1382,9 +1383,12 @@ static void kmemleak_scan(void)
		}
		rcu_read_unlock();

		if (new_leaks)
		if (new_leaks) {
		kmemleak_found_leaks = true;

		pr_info("%d new suspected memory leaks (see "
		"/sys/kernel/debug/kmemleak)\n", new_leaks);
		}

		}

		@@ -1592,6 +1596,8 @@ static void kmemleak_clear(void)
		spin_unlock_irqrestore(&object->lock, flags);
		}
		rcu_read_unlock();

		kmemleak_found_leaks = false;
		}

		/*
		@@ -1685,12 +1691,11 @@ static const struct file_operations kmemleak_fops = {
		static void kmemleak_do_cleanup(struct work_struct *work)
		{
		struct kmemleak_object *object;
		bool cleanup = scan_thread == NULL;

		mutex_lock(&scan_mutex);
		stop_scan_thread();

		if (cleanup) {
		if (!kmemleak_found_leaks) {
		rcu_read_lock();
		list_for_each_entry_rcu(object, &object_list, object_list)
		delete_object_full(object->pointer);