zdtm/maps006: modify test so that file and anon vma-s are mixed

Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

test/zdtm/static/maps06.c

@@ -10,8 +10,11 @@ const char *test_author	= "Andrei Vagin <avagin@openvz.org>";
 char *filename;
 TEST_OPTION(filename, string, "file name", 1);
 
+#define TEST_SIZE 10240
+
 int main(int argc, char ** argv)
 {
+	void *start;
 	int fd, i;
 
 	test_init(argc, argv);
@@ -22,17 +25,40 @@ int main(int argc, char ** argv)
 
 	ftruncate(fd, 4096);
 
-	for (i = 0; i < 1024; i++) {
-		if (mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_FILE, fd, 0) == MAP_FAILED)
+	start = mmap(0, 4096 * TEST_SIZE * 4, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+	if (start == MAP_FAILED)
+		return 1;
+
+	for (i = 0; i < TEST_SIZE; i++) {
+		int *addr;
+		addr = mmap(start + i * 3 * 4096, 4096,
+				PROT_READ | PROT_WRITE,
+				MAP_PRIVATE | MAP_FILE | MAP_FIXED, fd, 0);
+		if (addr == MAP_FAILED)
 			return 1;
-		if (mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0) == MAP_FAILED)
+		addr[0] = i * 2;
+		addr = mmap(start + (i * 3 + 1) * 4096, 4096,
+				PROT_READ | PROT_WRITE,
+				MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
+		if (addr == MAP_FAILED)
 			return 1;
+		addr[0] = i;
 	}
 
 	test_daemon();
 
 	test_waitsig();
 
+	for (i = 0; i < TEST_SIZE; i++) {
+		int *addr;
+		addr = start + i * 3 * 4096;;
+		if (addr[0] != i * 2)
+			fail();
+		addr = start + (i * 3  + 1) * 4096;
+		if (addr[0] != i)
+			fail();
+	}
+
 	pass();
 
 	return 0;