87 u32 *dst_cow_metrics_generic(struct dst_entry *dst, unsigned long old);
96 static inline bool dst_metrics_read_only(const struct dst_entry *dst)  in dst_metrics_read_only()  argument
98 	return dst->_metrics & DST_METRICS_READ_ONLY;  in dst_metrics_read_only()
101 void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old);
103 static inline void dst_destroy_metrics_generic(struct dst_entry *dst)  in dst_destroy_metrics_generic()  argument
105 	unsigned long val = dst->_metrics;  in dst_destroy_metrics_generic()
107 		__dst_destroy_metrics_generic(dst, val);  in dst_destroy_metrics_generic()
110 static inline u32 *dst_metrics_write_ptr(struct dst_entry *dst)  in dst_metrics_write_ptr()  argument
112 	unsigned long p = dst->_metrics;  in dst_metrics_write_ptr()
117 		return dst->ops->cow_metrics(dst, p);  in dst_metrics_write_ptr()
124 static inline void dst_init_metrics(struct dst_entry *dst,  in dst_init_metrics()  argument
128 	dst->_metrics = ((unsigned long) src_metrics) |  in dst_init_metrics()
143 static inline u32 *dst_metrics_ptr(struct dst_entry *dst)  in dst_metrics_ptr()  argument
145 	return DST_METRICS_PTR(dst);  in dst_metrics_ptr()
149 dst_metric_raw(const struct dst_entry *dst, const int metric)  in dst_metric_raw()  argument
151 	u32 *p = DST_METRICS_PTR(dst);  in dst_metric_raw()
157 dst_metric(const struct dst_entry *dst, const int metric)  in dst_metric()  argument
162 	return dst_metric_raw(dst, metric);  in dst_metric()
166 dst_metric_advmss(const struct dst_entry *dst)  in dst_metric_advmss()  argument
168 	u32 advmss = dst_metric_raw(dst, RTAX_ADVMSS);  in dst_metric_advmss()
171 		advmss = dst->ops->default_advmss(dst);  in dst_metric_advmss()
176 static inline void dst_metric_set(struct dst_entry *dst, int metric, u32 val)  in dst_metric_set()  argument
178 	u32 *p = dst_metrics_write_ptr(dst);  in dst_metric_set()
191 dst_feature(const struct dst_entry *dst, u32 feature)  in dst_feature()  argument
193 	return dst_metric(dst, RTAX_FEATURES) & feature;  in dst_feature()
196 static inline u32 dst_mtu(const struct dst_entry *dst)  in dst_mtu()  argument
198 	return dst->ops->mtu(dst);  in dst_mtu()
202 static inline unsigned long dst_metric_rtt(const struct dst_entry *dst, int metric)  in dst_metric_rtt()  argument
204 	return msecs_to_jiffies(dst_metric(dst, metric));  in dst_metric_rtt()
208 dst_allfrag(const struct dst_entry *dst)  in dst_allfrag()  argument
210 	int ret = dst_feature(dst,  RTAX_FEATURE_ALLFRAG);  in dst_allfrag()
215 dst_metric_locked(const struct dst_entry *dst, int metric)  in dst_metric_locked()  argument
217 	return dst_metric(dst, RTAX_LOCK) & (1 << metric);  in dst_metric_locked()
220 static inline void dst_hold(struct dst_entry *dst)  in dst_hold()  argument
227 	WARN_ON(atomic_inc_not_zero(&dst->__refcnt) == 0);  in dst_hold()
230 static inline void dst_use_noref(struct dst_entry *dst, unsigned long time)  in dst_use_noref()  argument
232 	if (unlikely(time != dst->lastuse)) {  in dst_use_noref()
233 		dst->__use++;  in dst_use_noref()
234 		dst->lastuse = time;  in dst_use_noref()
238 static inline void dst_hold_and_use(struct dst_entry *dst, unsigned long time)  in dst_hold_and_use()  argument
240 	dst_hold(dst);  in dst_hold_and_use()
241 	dst_use_noref(dst, time);  in dst_hold_and_use()
244 static inline struct dst_entry *dst_clone(struct dst_entry *dst)  in dst_clone()  argument
246 	if (dst)  in dst_clone()
247 		dst_hold(dst);  in dst_clone()
248 	return dst;  in dst_clone()
251 void dst_release(struct dst_entry *dst);
253 void dst_release_immediate(struct dst_entry *dst);
294 static inline bool dst_hold_safe(struct dst_entry *dst)  in dst_hold_safe()  argument
296 	return atomic_inc_not_zero(&dst->__refcnt);  in dst_hold_safe()
309 		struct dst_entry *dst = skb_dst(skb);  in skb_dst_force()  local
312 		if (!dst_hold_safe(dst))  in skb_dst_force()
313 			dst = NULL;  in skb_dst_force()
315 		skb->_skb_refdst = (unsigned long)dst;  in skb_dst_force()
367 	const struct dst_entry *dst;  in dst_tclassid()  local
369 	dst = skb_dst(skb);  in dst_tclassid()
370 	if (dst)  in dst_tclassid()
371 		return dst->tclassid;  in dst_tclassid()
383 void dst_init(struct dst_entry *dst, struct dst_ops *ops,
386 struct dst_entry *dst_destroy(struct dst_entry *dst);
387 void dst_dev_put(struct dst_entry *dst);
389 static inline void dst_confirm(struct dst_entry *dst)  in dst_confirm()  argument
393 static inline struct neighbour *dst_neigh_lookup(const struct dst_entry *dst, const void *daddr)  in dst_neigh_lookup()  argument
395 	struct neighbour *n = dst->ops->neigh_lookup(dst, NULL, daddr);  in dst_neigh_lookup()
399 static inline struct neighbour *dst_neigh_lookup_skb(const struct dst_entry *dst,  in dst_neigh_lookup_skb()  argument
408 	if (dst->ops->neigh_lookup)  in dst_neigh_lookup_skb()
409 		n = dst->ops->neigh_lookup(dst, skb, NULL);  in dst_neigh_lookup_skb()
414 static inline void dst_confirm_neigh(const struct dst_entry *dst,  in dst_confirm_neigh()  argument
417 	if (dst->ops->confirm_neigh)  in dst_confirm_neigh()
418 		dst->ops->confirm_neigh(dst, daddr);  in dst_confirm_neigh()
423 	struct dst_entry *dst = skb_dst(skb);  in dst_link_failure()  local
424 	if (dst && dst->ops && dst->ops->link_failure)  in dst_link_failure()
425 		dst->ops->link_failure(skb);  in dst_link_failure()
428 static inline void dst_set_expires(struct dst_entry *dst, int timeout)  in dst_set_expires()  argument
435 	if (dst->expires == 0 || time_before(expires, dst->expires))  in dst_set_expires()
436 		dst->expires = expires;  in dst_set_expires()
451 static inline struct dst_entry *dst_check(struct dst_entry *dst, u32 cookie)  in dst_check()  argument
453 	if (dst->obsolete)  in dst_check()
454 		dst = dst->ops->check(dst, cookie);  in dst_check()
455 	return dst;  in dst_check()
493 static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst)  in dst_xfrm()  argument
514 static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst)  in dst_xfrm()  argument
516 	return dst->xfrm;  in dst_xfrm()
522 	struct dst_entry *dst = skb_dst(skb);  in skb_dst_update_pmtu()  local
524 	if (dst && dst->ops->update_pmtu)  in skb_dst_update_pmtu()
525 		dst->ops->update_pmtu(dst, NULL, skb, mtu, true);  in skb_dst_update_pmtu()
531 	struct dst_entry *dst = skb_dst(skb);  in skb_dst_update_pmtu_no_confirm()  local
533 	if (dst && dst->ops->update_pmtu)  in skb_dst_update_pmtu_no_confirm()
534 		dst->ops->update_pmtu(dst, NULL, skb, mtu, false);  in skb_dst_update_pmtu_no_confirm()
537 struct dst_entry *dst_blackhole_check(struct dst_entry *dst, u32 cookie);
538 void dst_blackhole_update_pmtu(struct dst_entry *dst, struct sock *sk,
540 void dst_blackhole_redirect(struct dst_entry *dst, struct sock *sk,
542 u32 *dst_blackhole_cow_metrics(struct dst_entry *dst, unsigned long old);
543 struct neighbour *dst_blackhole_neigh_lookup(const struct dst_entry *dst,
546 unsigned int dst_blackhole_mtu(const struct dst_entry *dst);