93 			   struct fail_nth_state *nth_state)  in fail_nth_first()  argument
98 	nth_state->proc_fd = open(buf, O_RDWR);  in fail_nth_first()
99 	ASSERT_NE(-1, nth_state->proc_fd);  in fail_nth_first()
103 			  struct fail_nth_state *nth_state,  in fail_nth_next()  argument
116 	ASSERT_GT(400, nth_state->iteration);  in fail_nth_next()
117 	if (nth_state->iteration != 0) {  in fail_nth_next()
126 		res = pread(nth_state->proc_fd, buf, sizeof(buf), 0);  in fail_nth_next()
133 		res2 = pwrite(nth_state->proc_fd, disable_nth,  in fail_nth_next()
136 			res2 = pwrite(nth_state->proc_fd, disable_nth,  in fail_nth_next()
153 	nth_state->iteration++;  in fail_nth_next()
163 		       struct fail_nth_state *nth_state)  in __fail_nth_enable()  argument
168 	if (!nth_state->iteration)  in __fail_nth_enable()
171 	len = snprintf(buf, sizeof(buf), "%u", nth_state->iteration);  in __fail_nth_enable()
172 	ASSERT_EQ(len, pwrite(nth_state->proc_fd, buf, len, 0));  in __fail_nth_enable()
184 		struct fail_nth_state nth_state = {};                               \
190 		fail_nth_first(_metadata, &nth_state);                              \
192 					     &nth_state));                          \
193 		while (fail_nth_next(_metadata, &nth_state, test_result)) {         \
197 						      variant, &nth_state);         \