tcp: kill eff_sacks "cache", the sole user can calculate itself

[safe/jmp/linux-2.6] / include / net / xfrm.h

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 766cc71..2e9f5c0 100644 (file)
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -38,22 +38,15 @@
        MODULE_ALIAS("xfrm-type-" __stringify(family) "-" __stringify(proto))
 
 #ifdef CONFIG_XFRM_STATISTICS
-DECLARE_SNMP_STAT(struct linux_xfrm_mib, xfrm_statistics);
-#define XFRM_INC_STATS(field)          SNMP_INC_STATS(xfrm_statistics, field)
-#define XFRM_INC_STATS_BH(field)       SNMP_INC_STATS_BH(xfrm_statistics, field)
-#define XFRM_INC_STATS_USER(field)     SNMP_INC_STATS_USER(xfrm_statistics, field)
+#define XFRM_INC_STATS(net, field)     SNMP_INC_STATS((net)->mib.xfrm_statistics, field)
+#define XFRM_INC_STATS_BH(net, field)  SNMP_INC_STATS_BH((net)->mib.xfrm_statistics, field)
+#define XFRM_INC_STATS_USER(net, field)        SNMP_INC_STATS_USER((net)-mib.xfrm_statistics, field)
 #else
-#define XFRM_INC_STATS(field)
-#define XFRM_INC_STATS_BH(field)
-#define XFRM_INC_STATS_USER(field)
+#define XFRM_INC_STATS(net, field)     ((void)(net))
+#define XFRM_INC_STATS_BH(net, field)  ((void)(net))
+#define XFRM_INC_STATS_USER(net, field)        ((void)(net))
 #endif
 
-extern struct sock *xfrm_nl;
-extern u32 sysctl_xfrm_aevent_etime;
-extern u32 sysctl_xfrm_aevent_rseqth;
-extern int sysctl_xfrm_larval_drop;
-extern u32 sysctl_xfrm_acq_expires;
-
 extern struct mutex xfrm_cfg_mutex;
 
 /* Organization of SPD aka "XFRM rules"
@@ -257,6 +250,7 @@ struct km_event
        u32     seq;
        u32     pid;
        u32     event;
+       struct net *net;
 };
 
 struct net_device;
@@ -265,10 +259,11 @@ struct xfrm_dst;
 struct xfrm_policy_afinfo {
        unsigned short          family;
        struct dst_ops          *dst_ops;
-       void                    (*garbage_collect)(void);
-       struct dst_entry        *(*dst_lookup)(int tos, xfrm_address_t *saddr,
+       void                    (*garbage_collect)(struct net *net);
+       struct dst_entry        *(*dst_lookup)(struct net *net, int tos,
+                                              xfrm_address_t *saddr,
                                               xfrm_address_t *daddr);
-       int                     (*get_saddr)(xfrm_address_t *saddr, xfrm_address_t *daddr);
+       int                     (*get_saddr)(struct net *net, xfrm_address_t *saddr, xfrm_address_t *daddr);
        struct dst_entry        *(*find_bundle)(struct flowi *fl, struct xfrm_policy *policy);
        void                    (*decode_session)(struct sk_buff *skb,
                                                  struct flowi *fl,
@@ -552,7 +547,7 @@ struct xfrm_mgr
        struct xfrm_policy      *(*compile_policy)(struct sock *sk, int opt, u8 *data, int len, int *dir);
        int                     (*new_mapping)(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport);
        int                     (*notify_policy)(struct xfrm_policy *x, int dir, struct km_event *c);
-       int                     (*report)(u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr);
+       int                     (*report)(struct net *net, u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr);
        int                     (*migrate)(struct xfrm_selector *sel, u8 dir, u8 type, struct xfrm_migrate *m, int num_bundles, struct xfrm_kmaddress *k);
 };
 
@@ -992,12 +987,13 @@ static inline int __xfrm_policy_check2(struct sock *sk, int dir,
                                       struct sk_buff *skb,
                                       unsigned int family, int reverse)
 {
+       struct net *net = dev_net(skb->dev);
        int ndir = dir | (reverse ? XFRM_POLICY_MASK + 1 : 0);
 
        if (sk && sk->sk_policy[XFRM_POLICY_IN])
                return __xfrm_policy_check(sk, ndir, skb, family);
 
-       return  (!init_net.xfrm.policy_count[dir] && !skb->sp) ||
+       return  (!net->xfrm.policy_count[dir] && !skb->sp) ||
                (skb->dst->flags & DST_NOPOLICY) ||
                __xfrm_policy_check(sk, ndir, skb, family);
 }
@@ -1049,7 +1045,9 @@ extern int __xfrm_route_forward(struct sk_buff *skb, unsigned short family);
 
 static inline int xfrm_route_forward(struct sk_buff *skb, unsigned short family)
 {
-       return  !init_net.xfrm.policy_count[XFRM_POLICY_OUT] ||
+       struct net *net = dev_net(skb->dev);
+
+       return  !net->xfrm.policy_count[XFRM_POLICY_OUT] ||
                (skb->dst->flags & DST_NOXFRM) ||
                __xfrm_route_forward(skb, family);
 }
@@ -1303,7 +1301,17 @@ static inline void xfrm6_fini(void)
 #endif
 
 #ifdef CONFIG_XFRM_STATISTICS
-extern int xfrm_proc_init(void);
+extern int xfrm_proc_init(struct net *net);
+extern void xfrm_proc_fini(struct net *net);
+#endif
+
+extern int xfrm_sysctl_init(struct net *net);
+#ifdef CONFIG_SYSCTL
+extern void xfrm_sysctl_fini(struct net *net);
+#else
+static inline void xfrm_sysctl_fini(struct net *net)
+{
+}
 #endif
 
 extern void xfrm_state_walk_init(struct xfrm_state_walk *walk, u8 proto);
@@ -1435,15 +1443,15 @@ static inline int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb)
 struct xfrm_policy *xfrm_policy_alloc(struct net *net, gfp_t gfp);
 
 extern void xfrm_policy_walk_init(struct xfrm_policy_walk *walk, u8 type);
-extern int xfrm_policy_walk(struct xfrm_policy_walk *walk,
+extern int xfrm_policy_walk(struct net *net, struct xfrm_policy_walk *walk,
        int (*func)(struct xfrm_policy *, int, int, void*), void *);
 extern void xfrm_policy_walk_done(struct xfrm_policy_walk *walk);
 int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl);
-struct xfrm_policy *xfrm_policy_bysel_ctx(u8 type, int dir,
+struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, u8 type, int dir,
                                          struct xfrm_selector *sel,
                                          struct xfrm_sec_ctx *ctx, int delete,
                                          int *err);
-struct xfrm_policy *xfrm_policy_byid(u8, int dir, u32 id, int delete, int *err);
+struct xfrm_policy *xfrm_policy_byid(struct net *net, u8, int dir, u32 id, int delete, int *err);
 int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info);
 u32 xfrm_get_acqseq(void);
 extern int xfrm_alloc_spi(struct xfrm_state *x, u32 minspi, u32 maxspi);
@@ -1468,7 +1476,7 @@ extern int xfrm_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
 
 extern int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport);
 extern void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 pid);
-extern int km_report(u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr);
+extern int km_report(struct net *net, u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr);
 
 extern void xfrm_input_init(void);
 extern int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, __be32 *spi, __be32 *seq);
@@ -1513,18 +1521,20 @@ static inline int xfrm_policy_id2dir(u32 index)
        return index & 7;
 }
 
-static inline int xfrm_aevent_is_on(void)
+#ifdef CONFIG_XFRM
+static inline int xfrm_aevent_is_on(struct net *net)
 {
        struct sock *nlsk;
        int ret = 0;
 
        rcu_read_lock();
-       nlsk = rcu_dereference(xfrm_nl);
+       nlsk = rcu_dereference(net->xfrm.nlsk);
        if (nlsk)
                ret = netlink_has_listeners(nlsk, XFRMNLGRP_AEVENTS);
        rcu_read_unlock();
        return ret;
 }
+#endif
 
 static inline int xfrm_alg_len(struct xfrm_algo *alg)
 {