21 static void __init init_id(atomic64_t *const counter, const u32 random_32bits)  in init_id()  argument
39 	atomic64_cmpxchg(counter, COUNTER_PRE_INIT, init);  in init_id()
46 	atomic64_t counter = ATOMIC64_INIT(COUNTER_PRE_INIT);  in test_init_min()  local
48 	init_id(&counter, 0);  in test_init_min()
49 	KUNIT_EXPECT_EQ(test, atomic64_read(&counter), 1ULL + U32_MAX);  in test_init_min()
54 	atomic64_t counter = ATOMIC64_INIT(COUNTER_PRE_INIT);  in test_init_max()  local
56 	init_id(&counter, ~0);  in test_init_max()
57 	KUNIT_EXPECT_EQ(test, atomic64_read(&counter), 1 + (2ULL * U32_MAX));  in test_init_max()
63 	atomic64_t counter = ATOMIC64_INIT(COUNTER_PRE_INIT);  in test_init_once()  local
65 	init_id(&counter, 0);  in test_init_once()
66 	KUNIT_EXPECT_EQ(test, atomic64_read(&counter), first_init);  in test_init_once()
68 	init_id(&counter, ~0);  in test_init_once()
70 		test, atomic64_read(&counter), first_init,  in test_init_once()
82  * It's not worth it to try to hide the monotonic counter because it can still
83  * be inferred (with N counter ranges), and if we are allowed to read the inode
90 static u64 get_id_range(size_t number_of_ids, atomic64_t *const counter,  in get_id_range()  argument
113 	id = atomic64_fetch_add(step, counter);  in get_id_range()
124 	atomic64_t counter;  in test_range1_rand0()  local
128 	atomic64_set(&counter, init);  in test_range1_rand0()
129 	KUNIT_EXPECT_EQ(test, get_id_range(1, &counter, 0), init);  in test_range1_rand0()
131 		test, get_id_range(get_random_u8(), &counter, get_random_u8()),  in test_range1_rand0()
137 	atomic64_t counter;  in test_range1_rand1()  local
141 	atomic64_set(&counter, init);  in test_range1_rand1()
142 	KUNIT_EXPECT_EQ(test, get_id_range(1, &counter, 1), init);  in test_range1_rand1()
144 		test, get_id_range(get_random_u8(), &counter, get_random_u8()),  in test_range1_rand1()
150 	atomic64_t counter;  in test_range1_rand15()  local
154 	atomic64_set(&counter, init);  in test_range1_rand15()
155 	KUNIT_EXPECT_EQ(test, get_id_range(1, &counter, 15), init);  in test_range1_rand15()
157 		test, get_id_range(get_random_u8(), &counter, get_random_u8()),  in test_range1_rand15()
163 	atomic64_t counter;  in test_range1_rand16()  local
167 	atomic64_set(&counter, init);  in test_range1_rand16()
168 	KUNIT_EXPECT_EQ(test, get_id_range(1, &counter, 16), init);  in test_range1_rand16()
170 		test, get_id_range(get_random_u8(), &counter, get_random_u8()),  in test_range1_rand16()
176 	atomic64_t counter;  in test_range2_rand0()  local
180 	atomic64_set(&counter, init);  in test_range2_rand0()
181 	KUNIT_EXPECT_EQ(test, get_id_range(2, &counter, 0), init);  in test_range2_rand0()
183 		test, get_id_range(get_random_u8(), &counter, get_random_u8()),  in test_range2_rand0()
189 	atomic64_t counter;  in test_range2_rand1()  local
193 	atomic64_set(&counter, init);  in test_range2_rand1()
194 	KUNIT_EXPECT_EQ(test, get_id_range(2, &counter, 1), init);  in test_range2_rand1()
196 		test, get_id_range(get_random_u8(), &counter, get_random_u8()),  in test_range2_rand1()
202 	atomic64_t counter;  in test_range2_rand2()  local
206 	atomic64_set(&counter, init);  in test_range2_rand2()
207 	KUNIT_EXPECT_EQ(test, get_id_range(2, &counter, 2), init);  in test_range2_rand2()
209 		test, get_id_range(get_random_u8(), &counter, get_random_u8()),  in test_range2_rand2()
215 	atomic64_t counter;  in test_range2_rand15()  local
219 	atomic64_set(&counter, init);  in test_range2_rand15()
220 	KUNIT_EXPECT_EQ(test, get_id_range(2, &counter, 15), init);  in test_range2_rand15()
222 		test, get_id_range(get_random_u8(), &counter, get_random_u8()),  in test_range2_rand15()
228 	atomic64_t counter;  in test_range2_rand16()  local
232 	atomic64_set(&counter, init);  in test_range2_rand16()
233 	KUNIT_EXPECT_EQ(test, get_id_range(2, &counter, 16), init);  in test_range2_rand16()
235 		test, get_id_range(get_random_u8(), &counter, get_random_u8()),  in test_range2_rand16()