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Message-Id: <1296554868-17002-5-git-send-email-horms@verge.net.au>
Date: Tue, 1 Feb 2011 21:07:47 +1100
From: Simon Horman <horms@...ge.net.au>
To: netdev@...r.kernel.org, linux-next@...r.kernel.org,
linux-kernel@...r.kernel.org, lvs-devel@...r.kernel.org
Cc: Randy Dunlap <randy.dunlap@...cle.com>,
Stephen Rothwell <sfr@...b.auug.org.au>,
Hans Schillstrom <hans@...illstrom.com>,
Patrick McHardy <kaber@...sh.net>,
Simon Horman <horms@...ge.net.au>
Subject: [PATCH 4/5] IPVS: Allow compilation with CONFIG_SYSCTL disabled
This is a rather naieve approach to allowing PVS to compile with
CONFIG_SYSCTL disabled. I am working on a more comprehensive patch which
will remove compilation of all sysctl-related IPVS code when CONFIG_SYSCTL
is disabled.
Cc: Hans Schillstrom <hans@...illstrom.com>
Reported-by: Randy Dunlap <randy.dunlap@...cle.com>
Signed-off-by: Simon Horman <horms@...ge.net.au>
---
net/netfilter/ipvs/ip_vs_ctl.c | 14 +++++++++-----
net/netfilter/ipvs/ip_vs_lblc.c | 20 ++++++++++----------
net/netfilter/ipvs/ip_vs_lblcr.c | 20 ++++++++++----------
3 files changed, 29 insertions(+), 25 deletions(-)
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index d7c2fa8..c73b0c8 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -3552,10 +3552,15 @@ int __net_init __ip_vs_control_init(struct net *net)
tbl[idx++].data = &ipvs->sysctl_nat_icmp_send;
+#ifdef CONFIG_SYSCTL
ipvs->sysctl_hdr = register_net_sysctl_table(net, net_vs_ctl_path,
tbl);
- if (ipvs->sysctl_hdr == NULL)
- goto err_reg;
+ if (ipvs->sysctl_hdr == NULL) {
+ if (!net_eq(net, &init_net))
+ kfree(tbl);
+ goto err_dup;
+ }
+#endif
ip_vs_new_estimator(net, ipvs->tot_stats);
ipvs->sysctl_tbl = tbl;
/* Schedule defense work */
@@ -3563,9 +3568,6 @@ int __net_init __ip_vs_control_init(struct net *net)
schedule_delayed_work(&ipvs->defense_work, DEFENSE_TIMER_PERIOD);
return 0;
-err_reg:
- if (!net_eq(net, &init_net))
- kfree(tbl);
err_dup:
free_percpu(ipvs->cpustats);
err_alloc:
@@ -3581,7 +3583,9 @@ static void __net_exit __ip_vs_control_cleanup(struct net *net)
ip_vs_kill_estimator(net, ipvs->tot_stats);
cancel_delayed_work_sync(&ipvs->defense_work);
cancel_work_sync(&ipvs->defense_work.work);
+#ifdef CONFIG_SYSCTL
unregister_net_sysctl_table(ipvs->sysctl_hdr);
+#endif
proc_net_remove(net, "ip_vs_stats_percpu");
proc_net_remove(net, "ip_vs_stats");
proc_net_remove(net, "ip_vs");
diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index d5bec33..00b5ffa 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -554,33 +554,33 @@ static int __net_init __ip_vs_lblc_init(struct net *net)
sizeof(vs_vars_table),
GFP_KERNEL);
if (ipvs->lblc_ctl_table == NULL)
- goto err_dup;
+ return -ENOMEM;
} else
ipvs->lblc_ctl_table = vs_vars_table;
ipvs->sysctl_lblc_expiration = 24*60*60*HZ;
ipvs->lblc_ctl_table[0].data = &ipvs->sysctl_lblc_expiration;
+#ifdef CONFIG_SYSCTL
ipvs->lblc_ctl_header =
register_net_sysctl_table(net, net_vs_ctl_path,
ipvs->lblc_ctl_table);
- if (!ipvs->lblc_ctl_header)
- goto err_reg;
+ if (!ipvs->lblc_ctl_header) {
+ if (!net_eq(net, &init_net))
+ kfree(ipvs->lblc_ctl_table);
+ return -ENOMEM;
+ }
+#endif
return 0;
-
-err_reg:
- if (!net_eq(net, &init_net))
- kfree(ipvs->lblc_ctl_table);
-
-err_dup:
- return -ENOMEM;
}
static void __net_exit __ip_vs_lblc_exit(struct net *net)
{
struct netns_ipvs *ipvs = net_ipvs(net);
+#ifdef CONFIG_SYSCTL
unregister_net_sysctl_table(ipvs->lblc_ctl_header);
+#endif
if (!net_eq(net, &init_net))
kfree(ipvs->lblc_ctl_table);
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index 61ae8cf..bfa25f1 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -754,33 +754,33 @@ static int __net_init __ip_vs_lblcr_init(struct net *net)
sizeof(vs_vars_table),
GFP_KERNEL);
if (ipvs->lblcr_ctl_table == NULL)
- goto err_dup;
+ return -ENOMEM;
} 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;
+#ifdef CONFIG_SYSCTL
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;
+ if (!ipvs->lblcr_ctl_header) {
+ if (!net_eq(net, &init_net))
+ kfree(ipvs->lblcr_ctl_table);
+ return -ENOMEM;
+ }
+#endif
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)
{
struct netns_ipvs *ipvs = net_ipvs(net);
+#ifdef CONFIG_SYSCTL
unregister_net_sysctl_table(ipvs->lblcr_ctl_header);
+#endif
if (!net_eq(net, &init_net))
kfree(ipvs->lblcr_ctl_table);
--
1.7.2.3
--
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