test: wait when a prepartion stage will be completed

Signed-off-by: Andrew Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/zdtm/live/static/chroot-file.c

@@ -74,6 +74,7 @@ int main(int argc, char **argv)
 
 		res = ERR_PIPES;
 		read(pipe_prep[0], &res, 1);
+		read(pipe_prep[0], &res, 1); /* wait when a descriptor will be closed */
 		if (res != SUCCESS) {
 			if (res == ERR_PIPES)
 				pr_perror("broken pipes");

test/zdtm/live/static/maps01.c

@@ -27,9 +27,12 @@ int main(int argc, char ** argv)
 	uint32_t crc;
 	pid_t pid = -1;
 	int status, fd;
+	task_waiter_t t;
 
 	test_init(argc, argv);
 
+	task_waiter_init(&t);
+
 	m = mmap(NULL, MEM_SIZE, PROT_WRITE | PROT_READ,
 				MAP_SHARED | MAP_ANONYMOUS, -1, 0);
 
@@ -70,6 +73,8 @@ int main(int argc, char ** argv)
 		crc = ~0;
 		datagen(p3, PAGE_SIZE, &crc);
 
+		task_waiter_complete(&t, 1);
+
 		test_waitsig();
 
 		crc = ~0;
@@ -98,6 +103,7 @@ int main(int argc, char ** argv)
 			return 1;
 		return 0;
 	}
+	task_waiter_wait4(&t, 1);
 
 	munmap(p, MEM_OFFSET);
 	p2 = mremap(p + MEM_OFFSET, MEM_OFFSET, MEM_OFFSET, MREMAP_FIXED | MREMAP_MAYMOVE, p2);