Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

[~andy/linux] / include / net / ip6_fib.h

diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index b26bb810198169c9b0d10462c282d284a6ad1bca..0ae759a6c76ef7f2b58ba28588195223443ca352 100644 (file)
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -123,6 +123,54 @@ static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst)
        return ((struct rt6_info *)dst)->rt6i_idev;
 }
 
+static inline void rt6_clean_expires(struct rt6_info *rt)
+{
+       if (!(rt->rt6i_flags & RTF_EXPIRES) && rt->dst.from)
+               dst_release(rt->dst.from);
+
+       rt->rt6i_flags &= ~RTF_EXPIRES;
+       rt->dst.from = NULL;
+}
+
+static inline void rt6_set_expires(struct rt6_info *rt, unsigned long expires)
+{
+       if (!(rt->rt6i_flags & RTF_EXPIRES) && rt->dst.from)
+               dst_release(rt->dst.from);
+
+       rt->rt6i_flags |= RTF_EXPIRES;
+       rt->dst.expires = expires;
+}
+
+static inline void rt6_update_expires(struct rt6_info *rt, int timeout)
+{
+       if (!(rt->rt6i_flags & RTF_EXPIRES)) {
+               if (rt->dst.from)
+                       dst_release(rt->dst.from);
+               /* dst_set_expires relies on expires == 0 
+                * if it has not been set previously.
+                */
+               rt->dst.expires = 0;
+       }
+
+       dst_set_expires(&rt->dst, timeout);
+       rt->rt6i_flags |= RTF_EXPIRES;
+}
+
+static inline void rt6_set_from(struct rt6_info *rt, struct rt6_info *from)
+{
+       struct dst_entry *new = (struct dst_entry *) from;
+
+       if (!(rt->rt6i_flags & RTF_EXPIRES) && rt->dst.from) {
+               if (new == rt->dst.from)
+                       return;
+               dst_release(rt->dst.from);
+       }
+
+       rt->rt6i_flags &= ~RTF_EXPIRES;
+       rt->dst.from = new;
+       dst_hold(new);
+}
+
 struct fib6_walker_t {
        struct list_head lh;
        struct fib6_node *root, *node;