If the test's uname -r is less that 3.8, return -ENOSYS from
finit_module(), so that the fallback is tested.
---
 testsuite/init_module.c |   25 +++++++++++++++++++++++++
 1 files changed, 25 insertions(+), 0 deletions(-)

diff --git a/testsuite/init_module.c b/testsuite/init_module.c
index 42177e7..96f4aa7 100644
--- a/testsuite/init_module.c
+++ b/testsuite/init_module.c

@@ -37,6 +37,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/syscall.h>
+#include <sys/utsname.h>
 #include <unistd.h>

 /* kmod_elf_get_section() is not exported, we need the private header */

@@ -280,6 +281,25 @@ long init_module(void *mem, unsigned long len, const char *args)
        return err;
 }

+static int check_kernel_version(int major, int minor)
+{
+       struct utsname u;
+       const char *p;
+       int maj = 0, min = 0;
+
+       if (uname(&u) < 0)
+               return false;
+       for (p = u.release; *p >= '0' && *p <= '9'; p++)
+               maj = maj * 10 + *p - '0';
+       if (*p == '.')
+               for (p++; *p >= '0' && *p <= '9'; p++)
+                       min = min * 10 + *p - '0';
+       if (maj > major || (maj == major && min >= minor))
+               return true;
+       return false;
+}
+
+
 TS_EXPORT int finit_module(const int fd, const char *args, const int flags);

 int finit_module(const int fd, const char *args, const int flags)

@@ -289,6 +309,11 @@ int finit_module(const int fd, const char *args, const int flags)
        unsigned long len;
        struct stat st;

+       if (!check_kernel_version(3, 8)) {
+               stat("/old/kernel", &st);