Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6

Conflicts:
	Documentation/feature-removal-schedule.txt

3 files changed, 180 insertions, 163 deletions

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index e74da41ebd1..272f59336b7 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -374,24 +374,9 @@ struct ip_vs_stats {
 	struct ip_vs_estimator	est;		/* estimator */
 	struct ip_vs_cpu_stats	*cpustats;	/* per cpu counters */
 	spinlock_t		lock;		/* spin lock */
+	struct ip_vs_stats_user	ustats0;	/* reset values */
 };
 
-/*
- * Helper Macros for per cpu
- * ipvs->tot_stats->ustats.count
- */
-#define IPVS_STAT_INC(ipvs, count)	\
-	__this_cpu_inc((ipvs)->ustats->count)
-
-#define IPVS_STAT_ADD(ipvs, count, value) \
-	do {\
-		write_seqcount_begin(per_cpu_ptr((ipvs)->ustats_seq, \
-				     raw_smp_processor_id())); \
-		__this_cpu_add((ipvs)->ustats->count, value); \
-		write_seqcount_end(per_cpu_ptr((ipvs)->ustats_seq, \
-				   raw_smp_processor_id())); \
-	} while (0)
-
 struct dst_entry;
 struct iphdr;
 struct ip_vs_conn;
@@ -803,6 +788,171 @@ struct ip_vs_app {
 	void (*timeout_change)(struct ip_vs_app *app, int flags);
 };
 
+/* IPVS in network namespace */
+struct netns_ipvs {
+	int			gen;		/* Generation */
+	/*
+	 *	Hash table: for real service lookups
+	 */
+	#define IP_VS_RTAB_BITS 4
+	#define IP_VS_RTAB_SIZE (1 << IP_VS_RTAB_BITS)
+	#define IP_VS_RTAB_MASK (IP_VS_RTAB_SIZE - 1)
+
+	struct list_head	rs_table[IP_VS_RTAB_SIZE];
+	/* ip_vs_app */
+	struct list_head	app_list;
+	struct mutex		app_mutex;
+	struct lock_class_key	app_key;	/* mutex debuging */
+
+	/* ip_vs_proto */
+	#define IP_VS_PROTO_TAB_SIZE	32	/* must be power of 2 */
+	struct ip_vs_proto_data *proto_data_table[IP_VS_PROTO_TAB_SIZE];
+	/* ip_vs_proto_tcp */
+#ifdef CONFIG_IP_VS_PROTO_TCP
+	#define	TCP_APP_TAB_BITS	4
+	#define	TCP_APP_TAB_SIZE	(1 << TCP_APP_TAB_BITS)
+	#define	TCP_APP_TAB_MASK	(TCP_APP_TAB_SIZE - 1)
+	struct list_head	tcp_apps[TCP_APP_TAB_SIZE];
+	spinlock_t		tcp_app_lock;
+#endif
+	/* ip_vs_proto_udp */
+#ifdef CONFIG_IP_VS_PROTO_UDP
+	#define	UDP_APP_TAB_BITS	4
+	#define	UDP_APP_TAB_SIZE	(1 << UDP_APP_TAB_BITS)
+	#define	UDP_APP_TAB_MASK	(UDP_APP_TAB_SIZE - 1)
+	struct list_head	udp_apps[UDP_APP_TAB_SIZE];
+	spinlock_t		udp_app_lock;
+#endif
+	/* ip_vs_proto_sctp */
+#ifdef CONFIG_IP_VS_PROTO_SCTP
+	#define SCTP_APP_TAB_BITS	4
+	#define SCTP_APP_TAB_SIZE	(1 << SCTP_APP_TAB_BITS)
+	#define SCTP_APP_TAB_MASK	(SCTP_APP_TAB_SIZE - 1)
+	/* Hash table for SCTP application incarnations	 */
+	struct list_head	sctp_apps[SCTP_APP_TAB_SIZE];
+	spinlock_t		sctp_app_lock;
+#endif
+	/* ip_vs_conn */
+	atomic_t		conn_count;      /*  connection counter */
+
+	/* ip_vs_ctl */
+	struct ip_vs_stats		tot_stats;  /* Statistics & est. */
+
+	int			num_services;    /* no of virtual services */
+
+	rwlock_t		rs_lock;         /* real services table */
+	/* semaphore for IPVS sockopts. And, [gs]etsockopt may sleep. */
+	struct lock_class_key	ctl_key;	/* ctl_mutex debuging */
+	/* Trash for destinations */
+	struct list_head	dest_trash;
+	/* Service counters */
+	atomic_t		ftpsvc_counter;
+	atomic_t		nullsvc_counter;
+
+#ifdef CONFIG_SYSCTL
+	/* 1/rate drop and drop-entry variables */
+	struct delayed_work	defense_work;   /* Work handler */
+	int			drop_rate;
+	int			drop_counter;
+	atomic_t		dropentry;
+	/* locks in ctl.c */
+	spinlock_t		dropentry_lock;  /* drop entry handling */
+	spinlock_t		droppacket_lock; /* drop packet handling */
+	spinlock_t		securetcp_lock;  /* state and timeout tables */
+
+	/* sys-ctl struct */
+	struct ctl_table_header	*sysctl_hdr;
+	struct ctl_table	*sysctl_tbl;
+#endif
+
+	/* sysctl variables */
+	int			sysctl_amemthresh;
+	int			sysctl_am_droprate;
+	int			sysctl_drop_entry;
+	int			sysctl_drop_packet;
+	int			sysctl_secure_tcp;
+#ifdef CONFIG_IP_VS_NFCT
+	int			sysctl_conntrack;
+#endif
+	int			sysctl_snat_reroute;
+	int			sysctl_sync_ver;
+	int			sysctl_cache_bypass;
+	int			sysctl_expire_nodest_conn;
+	int			sysctl_expire_quiescent_template;
+	int			sysctl_sync_threshold[2];
+	int			sysctl_nat_icmp_send;
+
+	/* ip_vs_lblc */
+	int			sysctl_lblc_expiration;
+	struct ctl_table_header	*lblc_ctl_header;
+	struct ctl_table	*lblc_ctl_table;
+	/* ip_vs_lblcr */
+	int			sysctl_lblcr_expiration;
+	struct ctl_table_header	*lblcr_ctl_header;
+	struct ctl_table	*lblcr_ctl_table;
+	/* ip_vs_est */
+	struct list_head	est_list;	/* estimator list */
+	spinlock_t		est_lock;
+	struct timer_list	est_timer;	/* Estimation timer */
+	/* ip_vs_sync */
+	struct list_head	sync_queue;
+	spinlock_t		sync_lock;
+	struct ip_vs_sync_buff  *sync_buff;
+	spinlock_t		sync_buff_lock;
+	struct sockaddr_in	sync_mcast_addr;
+	struct task_struct	*master_thread;
+	struct task_struct	*backup_thread;
+	int			send_mesg_maxlen;
+	int			recv_mesg_maxlen;
+	volatile int		sync_state;
+	volatile int		master_syncid;
+	volatile int		backup_syncid;
+	/* multicast interface name */
+	char			master_mcast_ifn[IP_VS_IFNAME_MAXLEN];
+	char			backup_mcast_ifn[IP_VS_IFNAME_MAXLEN];
+	/* net name space ptr */
+	struct net		*net;            /* Needed by timer routines */
+};
+
+#define DEFAULT_SYNC_THRESHOLD	3
+#define DEFAULT_SYNC_PERIOD	50
+#define DEFAULT_SYNC_VER	1
+
+#ifdef CONFIG_SYSCTL
+
+static inline int sysctl_sync_threshold(struct netns_ipvs *ipvs)
+{
+	return ipvs->sysctl_sync_threshold[0];
+}
+
+static inline int sysctl_sync_period(struct netns_ipvs *ipvs)
+{
+	return ipvs->sysctl_sync_threshold[1];
+}
+
+static inline int sysctl_sync_ver(struct netns_ipvs *ipvs)
+{
+	return ipvs->sysctl_sync_ver;
+}
+
+#else
+
+static inline int sysctl_sync_threshold(struct netns_ipvs *ipvs)
+{
+	return DEFAULT_SYNC_THRESHOLD;
+}
+
+static inline int sysctl_sync_period(struct netns_ipvs *ipvs)
+{
+	return DEFAULT_SYNC_PERIOD;
+}
+
+static inline int sysctl_sync_ver(struct netns_ipvs *ipvs)
+{
+	return DEFAULT_SYNC_VER;
+}
+
+#endif
 
 /*
  *      IPVS core functions
@@ -1071,9 +1221,11 @@ extern void ip_vs_sync_cleanup(void);
  */
 extern int ip_vs_estimator_init(void);
 extern void ip_vs_estimator_cleanup(void);
-extern void ip_vs_new_estimator(struct net *net, struct ip_vs_stats *stats);
-extern void ip_vs_kill_estimator(struct net *net, struct ip_vs_stats *stats);
+extern void ip_vs_start_estimator(struct net *net, struct ip_vs_stats *stats);
+extern void ip_vs_stop_estimator(struct net *net, struct ip_vs_stats *stats);
 extern void ip_vs_zero_estimator(struct ip_vs_stats *stats);
+extern void ip_vs_read_estimator(struct ip_vs_stats_user *dst,
+				 struct ip_vs_stats *stats);
 
 /*
  *	Various IPVS packet transmitters (from ip_vs_xmit.c)
@@ -1106,6 +1258,7 @@ extern int ip_vs_icmp_xmit_v6
  int offset);
 #endif
 
+#ifdef CONFIG_SYSCTL
 /*
  *	This is a simple mechanism to ignore packets when
  *	we are loaded. Just set ip_vs_drop_rate to 'n' and
@@ -1121,6 +1274,9 @@ static inline int ip_vs_todrop(struct netns_ipvs *ipvs)
 	ipvs->drop_counter = ipvs->drop_rate;
 	return 1;
 }
+#else
+static inline int ip_vs_todrop(struct netns_ipvs *ipvs) { return 0; }
+#endif
 
 /*
  *      ip_vs_fwd_tag returns the forwarding tag of the connection
@@ -1190,7 +1346,7 @@ static inline void ip_vs_notrack(struct sk_buff *skb)
 {
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 	enum ip_conntrack_info ctinfo;
-	struct nf_conn *ct = ct = nf_ct_get(skb, &ctinfo);
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
 
 	if (!ct || !nf_ct_is_untracked(ct)) {
 		nf_reset(skb);
@@ -1208,7 +1364,11 @@ static inline void ip_vs_notrack(struct sk_buff *skb)
  */
 static inline int ip_vs_conntrack_enabled(struct netns_ipvs *ipvs)
 {
+#ifdef CONFIG_SYSCTL
 	return ipvs->sysctl_conntrack;
+#else
+	return 0;
+#endif
 }
 
 extern void ip_vs_update_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp,
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index b3b4a34cb2c..3ae491932bc 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -20,7 +20,6 @@
 #include <net/netns/conntrack.h>
 #endif
 #include <net/netns/xfrm.h>
-#include <net/netns/ip_vs.h>
 
 struct proc_dir_entry;
 struct net_device;
@@ -28,6 +27,7 @@ struct sock;
 struct ctl_table_header;
 struct net_generic;
 struct sock;
+struct netns_ipvs;
 
 
 #define NETDEV_HASHBITS    8
diff --git a/include/net/netns/ip_vs.h b/include/net/netns/ip_vs.h
deleted file mode 100644
index 259ebac904b..00000000000
--- a/include/net/netns/ip_vs.h
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- *  IP Virtual Server
- *  Data structure for network namspace
- *
- */
-
-#ifndef IP_VS_H_
-#define IP_VS_H_
-
-#include <linux/list.h>
-#include <linux/mutex.h>
-#include <linux/list_nulls.h>
-#include <linux/ip_vs.h>
-#include <asm/atomic.h>
-#include <linux/in.h>
-
-struct ip_vs_stats;
-struct ip_vs_sync_buff;
-struct ctl_table_header;
-
-struct netns_ipvs {
-	int			gen;		/* Generation */
-	/*
-	 *	Hash table: for real service lookups
-	 */
-	#define IP_VS_RTAB_BITS 4
-	#define IP_VS_RTAB_SIZE (1 << IP_VS_RTAB_BITS)
-	#define IP_VS_RTAB_MASK (IP_VS_RTAB_SIZE - 1)
-
-	struct list_head	rs_table[IP_VS_RTAB_SIZE];
-	/* ip_vs_app */
-	struct list_head	app_list;
-	struct mutex		app_mutex;
-	struct lock_class_key	app_key;	/* mutex debuging */
-
-	/* ip_vs_proto */
-	#define IP_VS_PROTO_TAB_SIZE	32	/* must be power of 2 */
-	struct ip_vs_proto_data *proto_data_table[IP_VS_PROTO_TAB_SIZE];
-	/* ip_vs_proto_tcp */
-#ifdef CONFIG_IP_VS_PROTO_TCP
-	#define	TCP_APP_TAB_BITS	4
-	#define	TCP_APP_TAB_SIZE	(1 << TCP_APP_TAB_BITS)
-	#define	TCP_APP_TAB_MASK	(TCP_APP_TAB_SIZE - 1)
-	struct list_head	tcp_apps[TCP_APP_TAB_SIZE];
-	spinlock_t		tcp_app_lock;
-#endif
-	/* ip_vs_proto_udp */
-#ifdef CONFIG_IP_VS_PROTO_UDP
-	#define	UDP_APP_TAB_BITS	4
-	#define	UDP_APP_TAB_SIZE	(1 << UDP_APP_TAB_BITS)
-	#define	UDP_APP_TAB_MASK	(UDP_APP_TAB_SIZE - 1)
-	struct list_head	udp_apps[UDP_APP_TAB_SIZE];
-	spinlock_t		udp_app_lock;
-#endif
-	/* ip_vs_proto_sctp */
-#ifdef CONFIG_IP_VS_PROTO_SCTP
-	#define SCTP_APP_TAB_BITS	4
-	#define SCTP_APP_TAB_SIZE	(1 << SCTP_APP_TAB_BITS)
-	#define SCTP_APP_TAB_MASK	(SCTP_APP_TAB_SIZE - 1)
-	/* Hash table for SCTP application incarnations	 */
-	struct list_head	sctp_apps[SCTP_APP_TAB_SIZE];
-	spinlock_t		sctp_app_lock;
-#endif
-	/* ip_vs_conn */
-	atomic_t		conn_count;      /*  connection counter */
-
-	/* ip_vs_ctl */
-	struct ip_vs_stats		*tot_stats;  /* Statistics & est. */
-	struct ip_vs_cpu_stats __percpu *cpustats;   /* Stats per cpu */
-	seqcount_t			*ustats_seq; /* u64 read retry */
-
-	int			num_services;    /* no of virtual services */
-	/* 1/rate drop and drop-entry variables */
-	struct delayed_work	defense_work;   /* Work handler */
-	int			drop_rate;
-	int			drop_counter;
-	atomic_t		dropentry;
-	/* locks in ctl.c */
-	spinlock_t		dropentry_lock;  /* drop entry handling */
-	spinlock_t		droppacket_lock; /* drop packet handling */
-	spinlock_t		securetcp_lock;  /* state and timeout tables */
-	rwlock_t		rs_lock;         /* real services table */
-	/* semaphore for IPVS sockopts. And, [gs]etsockopt may sleep. */
-	struct lock_class_key	ctl_key;	/* ctl_mutex debuging */
-	/* Trash for destinations */
-	struct list_head	dest_trash;
-	/* Service counters */
-	atomic_t		ftpsvc_counter;
-	atomic_t		nullsvc_counter;
-
-	/* sys-ctl struct */
-	struct ctl_table_header	*sysctl_hdr;
-	struct ctl_table	*sysctl_tbl;
-	/* sysctl variables */
-	int			sysctl_amemthresh;
-	int			sysctl_am_droprate;
-	int			sysctl_drop_entry;
-	int			sysctl_drop_packet;
-	int			sysctl_secure_tcp;
-#ifdef CONFIG_IP_VS_NFCT
-	int			sysctl_conntrack;
-#endif
-	int			sysctl_snat_reroute;
-	int			sysctl_sync_ver;
-	int			sysctl_cache_bypass;
-	int			sysctl_expire_nodest_conn;
-	int			sysctl_expire_quiescent_template;
-	int			sysctl_sync_threshold[2];
-	int			sysctl_nat_icmp_send;
-
-	/* ip_vs_lblc */
-	int			sysctl_lblc_expiration;
-	struct ctl_table_header	*lblc_ctl_header;
-	struct ctl_table	*lblc_ctl_table;
-	/* ip_vs_lblcr */
-	int			sysctl_lblcr_expiration;
-	struct ctl_table_header	*lblcr_ctl_header;
-	struct ctl_table	*lblcr_ctl_table;
-	/* ip_vs_est */
-	struct list_head	est_list;	/* estimator list */
-	spinlock_t		est_lock;
-	struct timer_list	est_timer;	/* Estimation timer */
-	/* ip_vs_sync */
-	struct list_head	sync_queue;
-	spinlock_t		sync_lock;
-	struct ip_vs_sync_buff  *sync_buff;
-	spinlock_t		sync_buff_lock;
-	struct sockaddr_in	sync_mcast_addr;
-	struct task_struct	*master_thread;
-	struct task_struct	*backup_thread;
-	int			send_mesg_maxlen;
-	int			recv_mesg_maxlen;
-	volatile int		sync_state;
-	volatile int		master_syncid;
-	volatile int		backup_syncid;
-	/* multicast interface name */
-	char			master_mcast_ifn[IP_VS_IFNAME_MAXLEN];
-	char			backup_mcast_ifn[IP_VS_IFNAME_MAXLEN];
-	/* net name space ptr */
-	struct net		*net;            /* Needed by timer routines */
-};
-
-#endif /* IP_VS_H_ */