diff options
author | Hans Schillstrom <hans.schillstrom@ericsson.com> | 2011-01-03 14:44:44 +0100 |
---|---|---|
committer | Simon Horman <horms@verge.net.au> | 2011-01-13 10:30:27 +0900 |
commit | d0a1eef9c38218af20c809b2220a960b7ed81a36 (patch) | |
tree | a2ba65169f823bfc06fa2ca4ae0bf4da3c6ffbf0 /net/netfilter/ipvs/ip_vs_lblcr.c | |
parent | fc723250c9cb046cc19833a2b1c4309bbf59ac36 (diff) | |
download | linux-d0a1eef9c38218af20c809b2220a960b7ed81a36.tar.bz2 |
IPVS: netns awarness to lblcr sheduler
var sysctl_ip_vs_lblcr_expiration moved to ipvs struct as
sysctl_lblcr_expiration
procfs updated to handle this.
Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'net/netfilter/ipvs/ip_vs_lblcr.c')
-rw-r--r-- | net/netfilter/ipvs/ip_vs_lblcr.c | 54 |
1 files changed, 36 insertions, 18 deletions
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c index 7c7396a6acbf..61ae8cfcf0b4 100644 --- a/net/netfilter/ipvs/ip_vs_lblcr.c +++ b/net/netfilter/ipvs/ip_vs_lblcr.c @@ -70,8 +70,6 @@ * entries that haven't been touched for a day. */ #define COUNT_FOR_FULL_EXPIRATION 30 -static int sysctl_ip_vs_lblcr_expiration = 24*60*60*HZ; - /* * for IPVS lblcr entry hash table @@ -296,7 +294,7 @@ struct ip_vs_lblcr_table { static ctl_table vs_vars_table[] = { { .procname = "lblcr_expiration", - .data = &sysctl_ip_vs_lblcr_expiration, + .data = NULL, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, @@ -304,8 +302,6 @@ static ctl_table vs_vars_table[] = { { } }; -static struct ctl_table_header * sysctl_header; - static inline void ip_vs_lblcr_free(struct ip_vs_lblcr_entry *en) { list_del(&en->list); @@ -425,14 +421,15 @@ static inline void ip_vs_lblcr_full_check(struct ip_vs_service *svc) unsigned long now = jiffies; int i, j; struct ip_vs_lblcr_entry *en, *nxt; + struct netns_ipvs *ipvs = net_ipvs(svc->net); for (i=0, j=tbl->rover; i<IP_VS_LBLCR_TAB_SIZE; i++) { j = (j + 1) & IP_VS_LBLCR_TAB_MASK; write_lock(&svc->sched_lock); list_for_each_entry_safe(en, nxt, &tbl->bucket[j], list) { - if (time_after(en->lastuse+sysctl_ip_vs_lblcr_expiration, - now)) + if (time_after(en->lastuse + + ipvs->sysctl_lblcr_expiration, now)) continue; ip_vs_lblcr_free(en); @@ -664,6 +661,7 @@ ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb) read_lock(&svc->sched_lock); en = ip_vs_lblcr_get(svc->af, tbl, &iph.daddr); if (en) { + struct netns_ipvs *ipvs = net_ipvs(svc->net); /* We only hold a read lock, but this is atomic */ en->lastuse = jiffies; @@ -675,7 +673,7 @@ ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb) /* More than one destination + enough time passed by, cleanup */ if (atomic_read(&en->set.size) > 1 && time_after(jiffies, en->set.lastmod + - sysctl_ip_vs_lblcr_expiration)) { + ipvs->sysctl_lblcr_expiration)) { struct ip_vs_dest *m; write_lock(&en->set.lock); @@ -749,23 +747,43 @@ static struct ip_vs_scheduler ip_vs_lblcr_scheduler = */ static int __net_init __ip_vs_lblcr_init(struct net *net) { - if (!net_eq(net, &init_net)) /* netns not enabled yet */ - return -EPERM; - - sysctl_header = register_net_sysctl_table(net, net_vs_ctl_path, - vs_vars_table); - if (!sysctl_header) - return -ENOMEM; + struct netns_ipvs *ipvs = net_ipvs(net); + + if (!net_eq(net, &init_net)) { + ipvs->lblcr_ctl_table = kmemdup(vs_vars_table, + sizeof(vs_vars_table), + GFP_KERNEL); + if (ipvs->lblcr_ctl_table == NULL) + goto err_dup; + } else + ipvs->lblcr_ctl_table = vs_vars_table; + ipvs->sysctl_lblcr_expiration = 24*60*60*HZ; + ipvs->lblcr_ctl_table[0].data = &ipvs->sysctl_lblcr_expiration; + + ipvs->lblcr_ctl_header = + register_net_sysctl_table(net, net_vs_ctl_path, + ipvs->lblcr_ctl_table); + if (!ipvs->lblcr_ctl_header) + goto err_reg; return 0; + +err_reg: + if (!net_eq(net, &init_net)) + kfree(ipvs->lblcr_ctl_table); + +err_dup: + return -ENOMEM; } static void __net_exit __ip_vs_lblcr_exit(struct net *net) { - if (!net_eq(net, &init_net)) /* netns not enabled yet */ - return; + struct netns_ipvs *ipvs = net_ipvs(net); + + unregister_net_sysctl_table(ipvs->lblcr_ctl_header); - unregister_net_sysctl_table(sysctl_header); + if (!net_eq(net, &init_net)) + kfree(ipvs->lblcr_ctl_table); } static struct pernet_operations ip_vs_lblcr_ops = { |