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Commit 59e0350e authored by Simon Horman's avatar Simon Horman
Browse files

IPVS: Add {sysctl_sync_threshold,period}() 



In preparation for not including sysctl_sync_threshold in
struct netns_ipvs when CONFIG_SYCTL is not defined.

Signed-off-by: default avatarSimon Horman <horms@verge.net.au>
parent 0cfa558e

include/net/ip_vs.h

+29 −0
Original line number Diff line number Diff line
@@ -909,6 +909,35 @@ struct netns_ipvs { 
	struct net		*net;            /* Needed by timer routines */

};



#define DEFAULT_SYNC_THRESHOLD	3

#define DEFAULT_SYNC_PERIOD	50



#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];

}



#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;

}



#endif



/*

 *      IPVS core functions

 *      (from ip_vs_core.c)

net/netfilter/ipvs/ip_vs_core.c

+5 −5
Original line number Diff line number Diff line
@@ -1613,15 +1613,15 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af) 
	 */



	if (cp->flags & IP_VS_CONN_F_ONE_PACKET)

		pkts = ipvs->sysctl_sync_threshold[0];

		pkts = sysctl_sync_threshold(ipvs);

	else

		pkts = atomic_add_return(1, &cp->in_pkts);



	if ((ipvs->sync_state & IP_VS_STATE_MASTER) &&

	    cp->protocol == IPPROTO_SCTP) {

		if ((cp->state == IP_VS_SCTP_S_ESTABLISHED &&

			(pkts % ipvs->sysctl_sync_threshold[1]

			 == ipvs->sysctl_sync_threshold[0])) ||

			(pkts % sysctl_sync_period(ipvs)

			 == sysctl_sync_threshold(ipvs))) ||

				(cp->old_state != cp->state &&

				 ((cp->state == IP_VS_SCTP_S_CLOSED) ||

				  (cp->state == IP_VS_SCTP_S_SHUT_ACK_CLI) ||
@@ -1635,8 +1635,8 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af) 
	else if ((ipvs->sync_state & IP_VS_STATE_MASTER) &&

	    (((cp->protocol != IPPROTO_TCP ||

	       cp->state == IP_VS_TCP_S_ESTABLISHED) &&

	      (pkts % ipvs->sysctl_sync_threshold[1]

	       == ipvs->sysctl_sync_threshold[0])) ||

	      (pkts % sysctl_sync_period(ipvs)

	       == sysctl_sync_threshold(ipvs))) ||

	     ((cp->protocol == IPPROTO_TCP) && (cp->old_state != cp->state) &&

	      ((cp->state == IP_VS_TCP_S_FIN_WAIT) ||

	       (cp->state == IP_VS_TCP_S_CLOSE) ||

net/netfilter/ipvs/ip_vs_ctl.c

+2 −2
Original line number Diff line number Diff line
@@ -3569,8 +3569,8 @@ int __net_init __ip_vs_control_init(struct net *net) 
	tbl[idx++].data = &ipvs->sysctl_cache_bypass;

	tbl[idx++].data = &ipvs->sysctl_expire_nodest_conn;

	tbl[idx++].data = &ipvs->sysctl_expire_quiescent_template;

	ipvs->sysctl_sync_threshold[0] = 3;

	ipvs->sysctl_sync_threshold[1] = 50;

	ipvs->sysctl_sync_threshold[0] = DEFAULT_SYNC_THRESHOLD;

	ipvs->sysctl_sync_threshold[1] = DEFAULT_SYNC_PERIOD;

	tbl[idx].data = &ipvs->sysctl_sync_threshold;

	tbl[idx++].maxlen = sizeof(ipvs->sysctl_sync_threshold);

	tbl[idx++].data = &ipvs->sysctl_nat_icmp_send;

net/netfilter/ipvs/ip_vs_sync.c

+2 −2
Original line number Diff line number Diff line
@@ -650,7 +650,7 @@ control: 
	if (cp->flags & IP_VS_CONN_F_TEMPLATE) {

		int pkts = atomic_add_return(1, &cp->in_pkts);



		if (pkts % ipvs->sysctl_sync_threshold[1] != 1)

		if (pkts % sysctl_sync_period(ipvs) != 1)

			return;

	}

	goto sloop;
@@ -794,7 +794,7 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param, 


	if (opt)

		memcpy(&cp->in_seq, opt, sizeof(*opt));

	atomic_set(&cp->in_pkts, ipvs->sysctl_sync_threshold[0]);

	atomic_set(&cp->in_pkts, sysctl_sync_threshold(ipvs));

	cp->state = state;

	cp->old_state = cp->state;

	/*