ipvs: rename functions related to dst_cache reset

Move and give better names to two functions:

- ip_vs_dst_reset to __ip_vs_dst_cache_reset
- __ip_vs_dev_reset to ip_vs_forget_dev

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off by: Hans Schillstrom <hans@schillstrom.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 64db117..8ad73a8 100644 (file)
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -1427,7 +1427,6 @@ extern int ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 extern int ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
                           struct ip_vs_protocol *pp, int offset,
                           unsigned int hooknum, struct ip_vs_iphdr *iph);
-extern void ip_vs_dst_reset(struct ip_vs_dest *dest);
 
 #ifdef CONFIG_IP_VS_IPV6
 extern int ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,

diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 6b55ba6..5265eaa 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -641,6 +641,17 @@ struct ip_vs_dest *ip_vs_find_dest(struct net  *net, int af,
        return dest;
 }
 
+/* Release dst_cache for dest in user context */
+static void __ip_vs_dst_cache_reset(struct ip_vs_dest *dest)
+{
+       struct dst_entry *old_dst;
+
+       old_dst = dest->dst_cache;
+       dest->dst_cache = NULL;
+       dst_release(old_dst);
+       dest->dst_saddr.ip = 0;
+}
+
 /*
  *  Lookup dest by {svc,addr,port} in the destination trash.
  *  The destination trash is used to hold the destinations that are removed
@@ -690,7 +701,7 @@ ip_vs_trash_get_dest(struct ip_vs_service *svc, const union nf_inet_addr *daddr,
                                      IP_VS_DBG_ADDR(svc->af, &dest->addr),
                                      ntohs(dest->port));
                        list_del(&dest->n_list);
-                       ip_vs_dst_reset(dest);
+                       __ip_vs_dst_cache_reset(dest);
                        __ip_vs_unbind_svc(dest);
                        free_percpu(dest->stats.cpustats);
                        kfree(dest);
@@ -717,7 +728,7 @@ static void ip_vs_trash_cleanup(struct net *net)
 
        list_for_each_entry_safe(dest, nxt, &ipvs->dest_trash, n_list) {
                list_del(&dest->n_list);
-               ip_vs_dst_reset(dest);
+               __ip_vs_dst_cache_reset(dest);
                __ip_vs_unbind_svc(dest);
                free_percpu(dest->stats.cpustats);
                kfree(dest);
@@ -811,7 +822,7 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest,
        dest->l_threshold = udest->l_threshold;
 
        spin_lock_bh(&dest->dst_lock);
-       ip_vs_dst_reset(dest);
+       __ip_vs_dst_cache_reset(dest);
        spin_unlock_bh(&dest->dst_lock);
 
        if (add)
@@ -1037,7 +1048,7 @@ static void __ip_vs_del_dest(struct net *net, struct ip_vs_dest *dest)
                              dest->vfwmark,
                              IP_VS_DBG_ADDR(dest->af, &dest->addr),
                              ntohs(dest->port));
-               ip_vs_dst_reset(dest);
+               __ip_vs_dst_cache_reset(dest);
                /* simply decrease svc->refcnt here, let the caller check
                   and release the service if nobody refers to it.
                   Only user context can release destination and service,
@@ -1496,11 +1507,10 @@ void ip_vs_service_net_cleanup(struct net *net)
        mutex_unlock(&__ip_vs_mutex);
        LeaveFunction(2);
 }
-/*
- * Release dst hold by dst_cache
- */
+
+/* Put all references for device (dst_cache) */
 static inline void
-__ip_vs_dev_reset(struct ip_vs_dest *dest, struct net_device *dev)
+ip_vs_forget_dev(struct ip_vs_dest *dest, struct net_device *dev)
 {
        spin_lock_bh(&dest->dst_lock);
        if (dest->dst_cache && dest->dst_cache->dev == dev) {
@@ -1509,7 +1519,7 @@ __ip_vs_dev_reset(struct ip_vs_dest *dest, struct net_device *dev)
                              IP_VS_DBG_ADDR(dest->af, &dest->addr),
                              ntohs(dest->port),
                              atomic_read(&dest->refcnt));
-               ip_vs_dst_reset(dest);
+               __ip_vs_dst_cache_reset(dest);
        }
        spin_unlock_bh(&dest->dst_lock);
 
@@ -1537,7 +1547,7 @@ static int ip_vs_dst_event(struct notifier_block *this, unsigned long event,
                        if (net_eq(svc->net, net)) {
                                list_for_each_entry(dest, &svc->destinations,
                                                    n_list) {
-                                       __ip_vs_dev_reset(dest, dev);
+                                       ip_vs_forget_dev(dest, dev);
                                }
                        }
                }
@@ -1546,7 +1556,7 @@ static int ip_vs_dst_event(struct notifier_block *this, unsigned long event,
                        if (net_eq(svc->net, net)) {
                                list_for_each_entry(dest, &svc->destinations,
                                                    n_list) {
-                                       __ip_vs_dev_reset(dest, dev);
+                                       ip_vs_forget_dev(dest, dev);
                                }
                        }
 
@@ -1554,7 +1564,7 @@ static int ip_vs_dst_event(struct notifier_block *this, unsigned long event,
        }
 
        list_for_each_entry(dest, &ipvs->dest_trash, n_list) {
-               __ip_vs_dev_reset(dest, dev);
+               ip_vs_forget_dev(dest, dev);
        }
        mutex_unlock(&__ip_vs_mutex);
        LeaveFunction(2);

diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index 7cd7c61..6448a2e 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -362,20 +362,6 @@ __ip_vs_get_out_rt_v6(struct sk_buff *skb, struct ip_vs_dest *dest,
 #endif
 
 
-/*
- *     Release dest->dst_cache before a dest is removed
- */
-void
-ip_vs_dst_reset(struct ip_vs_dest *dest)
-{
-       struct dst_entry *old_dst;
-
-       old_dst = dest->dst_cache;
-       dest->dst_cache = NULL;
-       dst_release(old_dst);
-       dest->dst_saddr.ip = 0;
-}
-
 /* return NF_ACCEPT to allow forwarding or other NF_xxx on error */
 static inline int ip_vs_tunnel_xmit_prepare(struct sk_buff *skb,
                                            struct ip_vs_conn *cp)