Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
[linux-3.10.git] / include / net / neighbour.h
index 64a5f01..b017320 100644 (file)
@@ -24,6 +24,7 @@
 
 #include <linux/err.h>
 #include <linux/sysctl.h>
+#include <linux/workqueue.h>
 #include <net/rtnetlink.h>
 
 /*
 
 struct neighbour;
 
-struct neigh_parms
-{
+struct neigh_parms {
+#ifdef CONFIG_NET_NS
        struct net *net;
+#endif
        struct net_device *dev;
        struct neigh_parms *next;
        int     (*neigh_setup)(struct neighbour *);
@@ -67,13 +69,12 @@ struct neigh_parms
        int     locktime;
 };
 
-struct neigh_statistics
-{
+struct neigh_statistics {
        unsigned long allocs;           /* number of allocated neighs */
        unsigned long destroys;         /* number of destroyed neighs */
        unsigned long hash_grows;       /* number of hash resizes */
 
-       unsigned long res_failed;       /* nomber of failed resolutions */
+       unsigned long res_failed;       /* number of failed resolutions */
 
        unsigned long lookups;          /* number of lookups */
        unsigned long hits;             /* number of hits (among lookups) */
@@ -83,17 +84,13 @@ struct neigh_statistics
 
        unsigned long periodic_gc_runs; /* number of periodic GC runs */
        unsigned long forced_gc_runs;   /* number of forced GC runs */
+
+       unsigned long unres_discards;   /* number of unresolved drops */
 };
 
-#define NEIGH_CACHE_STAT_INC(tbl, field)                               \
-       do {                                                            \
-               preempt_disable();                                      \
-               (per_cpu_ptr((tbl)->stats, smp_processor_id())->field)++; \
-               preempt_enable();                                       \
-       } while (0)
+#define NEIGH_CACHE_STAT_INC(tbl, field) this_cpu_inc((tbl)->stats->field)
 
-struct neighbour
-{
+struct neighbour {
        struct neighbour        *next;
        struct neigh_table      *tbl;
        struct neigh_parms      *parms;
@@ -113,12 +110,11 @@ struct neighbour
        int                     (*output)(struct sk_buff *skb);
        struct sk_buff_head     arp_queue;
        struct timer_list       timer;
-       struct neigh_ops        *ops;
+       const struct neigh_ops  *ops;
        u8                      primary_key[0];
 };
 
-struct neigh_ops
-{
+struct neigh_ops {
        int                     family;
        void                    (*solicit)(struct neighbour *, struct sk_buff*);
        void                    (*error_report)(struct neighbour *, struct sk_buff*);
@@ -128,10 +124,11 @@ struct neigh_ops
        int                     (*queue_xmit)(struct sk_buff*);
 };
 
-struct pneigh_entry
-{
+struct pneigh_entry {
        struct pneigh_entry     *next;
+#ifdef CONFIG_NET_NS
        struct net              *net;
+#endif
        struct net_device       *dev;
        u8                      flags;
        u8                      key[0];
@@ -142,8 +139,7 @@ struct pneigh_entry
  */
 
 
-struct neigh_table
-{
+struct neigh_table {
        struct neigh_table      *next;
        int                     family;
        int                     entry_size;
@@ -161,7 +157,7 @@ struct neigh_table
        int                     gc_thresh2;
        int                     gc_thresh3;
        unsigned long           last_flush;
-       struct timer_list       gc_timer;
+       struct delayed_work     gc_work;
        struct timer_list       proxy_timer;
        struct sk_buff_head     proxy_queue;
        atomic_t                entries;
@@ -172,11 +168,7 @@ struct neigh_table
        struct neighbour        **hash_buckets;
        unsigned int            hash_mask;
        __u32                   hash_rnd;
-       unsigned int            hash_chain_gc;
        struct pneigh_entry     **phash_buckets;
-#ifdef CONFIG_PROC_FS
-       struct proc_dir_entry   *pde;
-#endif
 };
 
 /* flags for neigh_update() */
@@ -213,6 +205,13 @@ extern struct neighbour    *neigh_event_ns(struct neigh_table *tbl,
 
 extern struct neigh_parms      *neigh_parms_alloc(struct net_device *dev, struct neigh_table *tbl);
 extern void                    neigh_parms_release(struct neigh_table *tbl, struct neigh_parms *parms);
+
+static inline
+struct net                     *neigh_parms_net(const struct neigh_parms *parms)
+{
+       return read_pnet(&parms->net);
+}
+
 extern unsigned long           neigh_rand_reach_time(unsigned long base);
 
 extern void                    pneigh_enqueue(struct neigh_table *tbl, struct neigh_parms *p,
@@ -224,6 +223,12 @@ extern struct pneigh_entry *__pneigh_lookup(struct neigh_table *tbl,
                                                 struct net_device *dev);
 extern int                     pneigh_delete(struct neigh_table *tbl, struct net *net, const void *key, struct net_device *dev);
 
+static inline
+struct net                     *pneigh_net(const struct pneigh_entry *pneigh)
+{
+       return read_pnet(&pneigh->net);
+}
+
 extern void neigh_app_ns(struct neighbour *n);
 extern void neigh_for_each(struct neigh_table *tbl, void (*cb)(struct neighbour *, void *), void *cookie);
 extern void __neigh_for_each_release(struct neigh_table *tbl, int (*cb)(struct neighbour *));
@@ -248,8 +253,7 @@ extern int                  neigh_sysctl_register(struct net_device *dev,
                                                      struct neigh_parms *p,
                                                      int p_id, int pdev_id,
                                                      char *p_name,
-                                                     proc_handler *proc_handler,
-                                                     ctl_handler *strategy);
+                                                     proc_handler *proc_handler);
 extern void                    neigh_sysctl_unregister(struct neigh_parms *p);
 
 static inline void __neigh_parms_put(struct neigh_parms *parms)
@@ -288,12 +292,6 @@ static inline void neigh_confirm(struct neighbour *neigh)
                neigh->confirmed = jiffies;
 }
 
-static inline int neigh_is_connected(struct neighbour *neigh)
-{
-       return neigh->nud_state&NUD_CONNECTED;
-}
-
-
 static inline int neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
 {
        neigh->used = jiffies;