33 static void threshold_init(struct threshold *t)  in threshold_init()  argument
35 	t->threshold_set = false;  in threshold_init()
36 	t->value_set = false;  in threshold_init()
39 static void set_threshold(struct threshold *t, dm_block_t value,  in set_threshold()  argument
42 	t->threshold_set = true;  in set_threshold()
43 	t->threshold = value;  in set_threshold()
44 	t->fn = fn;  in set_threshold()
45 	t->context = context;  in set_threshold()
48 static bool below_threshold(struct threshold *t, dm_block_t value)  in below_threshold()  argument
50 	return t->threshold_set && value <= t->threshold;  in below_threshold()
53 static bool threshold_already_triggered(struct threshold *t)  in threshold_already_triggered()  argument
55 	return t->value_set && below_threshold(t, t->current_value);  in threshold_already_triggered()
58 static void check_threshold(struct threshold *t, dm_block_t value)  in check_threshold()  argument
60 	if (below_threshold(t, value) &&  in check_threshold()
61 	    !threshold_already_triggered(t))  in check_threshold()
62 		t->fn(t->context);  in check_threshold()
64 	t->value_set = true;  in check_threshold()
65 	t->current_value = value;  in check_threshold()