119 	void			(*update_pmtu)(struct dst_entry *dst, u32 mtu);
130 dst_metric(const struct dst_entry *dst, int metric)  in dst_metric()  argument
132 	return dst->metrics[metric-1];  in dst_metric()
135 static inline u32 dst_mtu(const struct dst_entry *dst)  in dst_mtu()  argument
137 	u32 mtu = dst_metric(dst, RTAX_MTU);  in dst_mtu()
146 static inline unsigned long dst_metric_rtt(const struct dst_entry *dst, int metric)  in dst_metric_rtt()  argument
148 	return msecs_to_jiffies(dst_metric(dst, metric));  in dst_metric_rtt()
151 static inline void set_dst_metric_rtt(struct dst_entry *dst, int metric,  in set_dst_metric_rtt()  argument
154 	dst->metrics[metric-1] = jiffies_to_msecs(rtt);  in set_dst_metric_rtt()
158 dst_allfrag(const struct dst_entry *dst)  in dst_allfrag()  argument
160 	int ret = dst_metric(dst, RTAX_FEATURES) & RTAX_FEATURE_ALLFRAG;  in dst_allfrag()
167 dst_metric_locked(struct dst_entry *dst, int metric)  in dst_metric_locked()  argument
169 	return dst_metric(dst, RTAX_LOCK) & (1<<metric);  in dst_metric_locked()
172 static inline void dst_hold(struct dst_entry * dst)  in dst_hold()  argument
179 	atomic_inc(&dst->__refcnt);  in dst_hold()
182 static inline void dst_use(struct dst_entry *dst, unsigned long time)  in dst_use()  argument
184 	dst_hold(dst);  in dst_use()
185 	dst->__use++;  in dst_use()
186 	dst->lastuse = time;  in dst_use()
190 struct dst_entry * dst_clone(struct dst_entry * dst)  in dst_clone()  argument
192 	if (dst)  in dst_clone()
193 		atomic_inc(&dst->__refcnt);  in dst_clone()
194 	return dst;  in dst_clone()
197 extern void dst_release(struct dst_entry *dst);
203 static inline struct dst_entry *dst_pop(struct dst_entry *dst)  in dst_pop()  argument
205 	struct dst_entry *child = dst_clone(dst->child);  in dst_pop()
207 	dst_release(dst);  in dst_pop()
213 extern void __dst_free(struct dst_entry * dst);
214 extern struct dst_entry *dst_destroy(struct dst_entry * dst);
216 static inline void dst_free(struct dst_entry * dst)  in dst_free()  argument
218 	if (dst->obsolete > 1)  in dst_free()
220 	if (!atomic_read(&dst->__refcnt)) {  in dst_free()
221 		dst = dst_destroy(dst);  in dst_free()
222 		if (!dst)  in dst_free()
225 	__dst_free(dst);  in dst_free()
230 	struct dst_entry *dst = container_of(head, struct dst_entry, rcu_head);  in dst_rcu_free()  local
231 	dst_free(dst);  in dst_rcu_free()
234 static inline void dst_confirm(struct dst_entry *dst)  in dst_confirm()  argument
236 	if (dst)  in dst_confirm()
237 		neigh_confirm(dst->neighbour);  in dst_confirm()
242 	struct dst_entry * dst = *dst_p;  in dst_negative_advice()  local
243 	if (dst && dst->ops->negative_advice)  in dst_negative_advice()
244 		*dst_p = dst->ops->negative_advice(dst);  in dst_negative_advice()
249 	struct dst_entry * dst = skb->dst;  in dst_link_failure()  local
250 	if (dst && dst->ops && dst->ops->link_failure)  in dst_link_failure()
251 		dst->ops->link_failure(skb);  in dst_link_failure()
254 static inline void dst_set_expires(struct dst_entry *dst, int timeout)  in dst_set_expires()  argument
261 	if (dst->expires == 0 || time_before(expires, dst->expires))  in dst_set_expires()
262 		dst->expires = expires;  in dst_set_expires()
268 	return skb->dst->output(skb);  in dst_output()
274 	return skb->dst->input(skb);  in dst_input()
277 static inline struct dst_entry *dst_check(struct dst_entry *dst, u32 cookie)  in dst_check()  argument
279 	if (dst->obsolete)  in dst_check()
280 		dst = dst->ops->check(dst, cookie);  in dst_check()
281 	return dst;  in dst_check()