dst.c (4af358f81881e1d083a916c9269b5ac0936e180d) dst.c (f6b72b6217f8c24f2a54988e58af858b4e66024d)
1/*
2 * net/core/dst.c Protocol independent destination cache.
3 *
4 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
5 *
6 */
7
8#include <linux/bitops.h>

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167 dst->dev = dev;
168 if (dev)
169 dev_hold(dev);
170 dst->ops = ops;
171 dst_init_metrics(dst, dst_default_metrics, true);
172 dst->expires = 0UL;
173 dst->path = dst;
174 dst->neighbour = NULL;
1/*
2 * net/core/dst.c Protocol independent destination cache.
3 *
4 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
5 *
6 */
7
8#include <linux/bitops.h>

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167 dst->dev = dev;
168 if (dev)
169 dev_hold(dev);
170 dst->ops = ops;
171 dst_init_metrics(dst, dst_default_metrics, true);
172 dst->expires = 0UL;
173 dst->path = dst;
174 dst->neighbour = NULL;
175 dst->hh = NULL;
176#ifdef CONFIG_XFRM
177 dst->xfrm = NULL;
178#endif
179 dst->input = dst_discard;
180 dst->output = dst_discard;
181 dst->error = 0;
182 dst->obsolete = initial_obsolete;
183 dst->header_len = 0;

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221 spin_unlock_bh(&dst_garbage.lock);
222}
223EXPORT_SYMBOL(__dst_free);
224
225struct dst_entry *dst_destroy(struct dst_entry * dst)
226{
227 struct dst_entry *child;
228 struct neighbour *neigh;
175#ifdef CONFIG_XFRM
176 dst->xfrm = NULL;
177#endif
178 dst->input = dst_discard;
179 dst->output = dst_discard;
180 dst->error = 0;
181 dst->obsolete = initial_obsolete;
182 dst->header_len = 0;

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220 spin_unlock_bh(&dst_garbage.lock);
221}
222EXPORT_SYMBOL(__dst_free);
223
224struct dst_entry *dst_destroy(struct dst_entry * dst)
225{
226 struct dst_entry *child;
227 struct neighbour *neigh;
229 struct hh_cache *hh;
230
231 smp_rmb();
232
233again:
234 neigh = dst->neighbour;
228
229 smp_rmb();
230
231again:
232 neigh = dst->neighbour;
235 hh = dst->hh;
236 child = dst->child;
237
233 child = dst->child;
234
238 dst->hh = NULL;
239 if (hh)
240 hh_cache_put(hh);
241
242 if (neigh) {
243 dst->neighbour = NULL;
244 neigh_release(neigh);
245 }
246
247 if (!(dst->flags & DST_NOCOUNT))
248 dst_entries_add(dst->ops, -1);
249

--- 172 unchanged lines hidden --- 		235 if (neigh) {
236 dst->neighbour = NULL;
237 neigh_release(neigh);
238 }
239
240 if (!(dst->flags & DST_NOCOUNT))
241 dst_entries_add(dst->ops, -1);
242

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