dlm: add __init and __exit marks to init and exit functions

it moves 365 bytes from .text to .init.text, and 30 bytes from .text to
.exit.text, saves memory.

Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: David Teigland <teigland@redhat.com>
diff --git a/fs/dlm/netlink.c b/fs/dlm/netlink.c
index 90374b8..7145936 100644
--- a/fs/dlm/netlink.c
+++ b/fs/dlm/netlink.c
@@ -78,7 +78,7 @@
 	.doit		= user_cmd,
 };
 
-int dlm_netlink_init(void)
+int __init dlm_netlink_init(void)
 {
 	int rv;
 
@@ -95,7 +95,7 @@
 	return rv;
 }
 
-void dlm_netlink_exit(void)
+void __exit dlm_netlink_exit(void)
 {
 	genl_unregister_ops(&family, &dlm_nl_ops);
 	genl_unregister_family(&family);