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Date: Mon, 13 Dec 2010 14:38:27 +0100
From: Hans Schillstrom <hans.schillstrom@...csson.com>
To: <horms@...ge.net.au>, <ja@....bg>, <daniel.lezcano@...e.fr>,
<wensong@...ux-vs.org>, <lvs-devel@...r.kernel.org>,
<netdev@...r.kernel.org>, <netfilter-devel@...r.kernel.org>
CC: <hans@...illstrom.com>,
Hans Schillstrom <hans.schillstrom@...csson.com>
Subject: [*v2 PATCH 19/22] IPVS: netns, trash handling
trash list per namspace,
and reordering of some params in dst struct.
Signed-off-by: Hans Schillstrom <hans.schillstrom@...csson.com>
---
include/net/ip_vs.h | 4 ++--
include/net/netns/ip_vs.h | 3 +++
net/netfilter/ipvs/ip_vs_ctl.c | 23 ++++++++++-------------
3 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 057c954..943c766 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -644,8 +644,8 @@ struct ip_vs_dest {
struct list_head d_list; /* for table with all the dests */
u16 af; /* address family */
- union nf_inet_addr addr; /* IP address of the server */
__be16 port; /* port number of the server */
+ union nf_inet_addr addr; /* IP address of the server */
volatile unsigned flags; /* dest status flags */
atomic_t conn_flags; /* flags to copy to conn */
atomic_t weight; /* server weight */
@@ -672,8 +672,8 @@ struct ip_vs_dest {
/* for virtual service */
struct ip_vs_service *svc; /* service it belongs to */
__u16 protocol; /* which protocol (TCP/UDP) */
- union nf_inet_addr vaddr; /* virtual IP address */
__be16 vport; /* virtual port number */
+ union nf_inet_addr vaddr; /* virtual IP address */
__u32 vfwmark; /* firewall mark of service */
};
diff --git a/include/net/netns/ip_vs.h b/include/net/netns/ip_vs.h
index eeb1dd1..b70444d 100644
--- a/include/net/netns/ip_vs.h
+++ b/include/net/netns/ip_vs.h
@@ -82,6 +82,9 @@ struct netns_ipvs {
/* semaphore for IPVS sockopts. And, [gs]etsockopt may sleep. */
struct mutex ctl_mutex;
struct lock_class_key ctl_key; /* ctl_mutex debuging */
+ /* Trash for destinations */
+ struct list_head dest_trash;
+
/* sys-ctl struct */
struct ctl_table_header *sysctl_hdr;
struct ctl_table *sysctl_tbl;
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 747bc96..418f6ba 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -253,11 +253,6 @@ static struct list_head ip_vs_svc_table[IP_VS_SVC_TAB_SIZE];
static struct list_head ip_vs_svc_fwm_table[IP_VS_SVC_TAB_SIZE];
/*
- * Trash for destinations
- */
-static LIST_HEAD(ip_vs_dest_trash);
-
-/*
* FTP & NULL virtual service counters
*/
static atomic_t ip_vs_ftpsvc_counter = ATOMIC_INIT(0);
@@ -645,11 +640,12 @@ ip_vs_trash_get_dest(struct ip_vs_service *svc, const union nf_inet_addr *daddr,
__be16 dport)
{
struct ip_vs_dest *dest, *nxt;
+ struct netns_ipvs *ipvs = net_ipvs(svc->net);
/*
* Find the destination in trash
*/
- list_for_each_entry_safe(dest, nxt, &ip_vs_dest_trash, n_list) {
+ list_for_each_entry_safe(dest, nxt, &ipvs->dest_trash, n_list) {
IP_VS_DBG_BUF(3, "Destination %u/%s:%u still in trash, "
"dest->refcnt=%d\n",
dest->vfwmark,
@@ -697,11 +693,12 @@ ip_vs_trash_get_dest(struct ip_vs_service *svc, const union nf_inet_addr *daddr,
* are expired, and the refcnt of each destination in the trash must
* be 1, so we simply release them here.
*/
-static void ip_vs_trash_cleanup(void)
+static void ip_vs_trash_cleanup(struct net *net)
{
struct ip_vs_dest *dest, *nxt;
+ struct netns_ipvs *ipvs = net_ipvs(net);
- list_for_each_entry_safe(dest, nxt, &ip_vs_dest_trash, n_list) {
+ list_for_each_entry_safe(dest, nxt, &ipvs->dest_trash, n_list) {
list_del(&dest->n_list);
ip_vs_dst_reset(dest);
__ip_vs_unbind_svc(dest);
@@ -826,7 +823,6 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest,
pr_err("%s(): no memory.\n", __func__);
return -ENOMEM;
}
-
dest->af = svc->af;
dest->protocol = svc->protocol;
dest->vaddr = svc->addr;
@@ -1004,7 +1000,7 @@ static void __ip_vs_del_dest(struct net *net, struct ip_vs_dest *dest)
IP_VS_DBG_ADDR(dest->af, &dest->addr),
ntohs(dest->port),
atomic_read(&dest->refcnt));
- list_add(&dest->n_list, &ip_vs_dest_trash);
+ list_add(&dest->n_list, &ipvs->dest_trash);
atomic_inc(&dest->refcnt);
}
}
@@ -3435,6 +3431,7 @@ int __net_init __ip_vs_control_init(struct net *net)
for (idx = 0; idx < IP_VS_RTAB_SIZE; idx++) {
INIT_LIST_HEAD(&ipvs->rs_table[idx]);
}
+ INIT_LIST_HEAD(&ipvs->dest_trash);
/* procfs stats */
ipvs->ctl_stats = kzalloc(sizeof(struct ip_vs_stats), GFP_KERNEL);
@@ -3515,12 +3512,13 @@ static void __net_exit __ip_vs_control_cleanup(struct net *net)
if (!net_eq(net, &init_net)) /* netns not enabled yet */
return;
+ ip_vs_trash_cleanup(net);
ip_vs_kill_estimator(net, ipvs->ctl_stats);
+ cancel_rearming_delayed_work(&ipvs->defense_work);
+ cancel_work_sync(&ipvs->defense_work.work);
unregister_net_sysctl_table(ipvs->sysctl_hdr);
proc_net_remove(net, "ip_vs_stats");
proc_net_remove(net, "ip_vs");
- cancel_rearming_delayed_work(&ipvs->defense_work);
- cancel_work_sync(&ipvs->defense_work.work);
free_percpu(ipvs->ustats);
kfree(ipvs->ctl_stats);
}
@@ -3577,7 +3575,6 @@ err:
void ip_vs_control_cleanup(void)
{
EnterFunction(2);
- ip_vs_trash_cleanup();
unregister_pernet_subsys(&ipvs_control_ops);
ip_vs_genl_unregister();
nf_unregister_sockopt(&ip_vs_sockopts);
--
1.7.2.3
--
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