autofs-5.0.6 - add kernel verion check function

From: Ian Kent <ikent@redhat.com>

Add a function to check kernel version.
---

 CHANGELOG        |    1 +
 include/mounts.h |   17 +++++++++++++++++
 2 files changed, 18 insertions(+), 0 deletions(-)


diff --git a/CHANGELOG b/CHANGELOG
index 29e4049..7e5783f 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -27,6 +27,7 @@
 - teach automount about sss source.
 - fix init script usage message.
 - ignore duplicate exports in auto.net.
+- add kernel verion check function.
 
 28/06/2011 autofs-5.0.6
 -----------------------
diff --git a/include/mounts.h b/include/mounts.h
index 4d932ca..3947d83 100644
--- a/include/mounts.h
+++ b/include/mounts.h
@@ -16,6 +16,9 @@
 #ifndef MOUNTS_H
 #define MOUNTS_H
 
+#include <linux/version.h>
+#include <sys/utsname.h>
+
 #ifndef AUTOFS_TYPE_ANY
 #define AUTOFS_TYPE_ANY		0x0000
 #endif
@@ -72,6 +75,20 @@ struct mnt_list {
 	struct list_head ordered;
 };
 
+static inline unsigned int linux_version_code(void)
+{
+        struct utsname my_utsname;
+        unsigned int p, q, r;
+
+        if (uname(&my_utsname))
+                return 0;
+
+        p = (unsigned int)atoi(strtok(my_utsname.release, "."));
+        q = (unsigned int)atoi(strtok(NULL, "."));
+        r = (unsigned int)atoi(strtok(NULL, "."));
+        return KERNEL_VERSION(p, q, r);
+}
+
 unsigned int query_kproto_ver(void);
 unsigned int get_kver_major(void);
 unsigned int get_kver_minor(void);