: Make ctl tables for ICMP sysctls per-net.

Add some flesh to ipv4_sysctl_init_net and ipv4_sysctl_exit_net, i.e. copy the table, alter .data pointers and register it per-net.

Other ipv4_table's sysctls are now global, but this is going to change once sysctl permissions patches migrate from -mm tree to mainline in 2.6.26 merge window :)

---
 include/net/netns/ipv4.h   |    1 +
 net/ipv4/sysctl_net_ipv4.c |  138 ++++++++++++++++++++++++++++---------------
 2 files changed, 91 insertions(+), 48 deletions(-)

index e3de0ff..af685f7 100644
@@ -17,6 +17,7 @@ struct netns_ipv4 {
 #ifdef CONFIG_SYSCTL
 	struct ctl_table_header	*forw_hdr;
 	struct ctl_table_header	*frags_hdr;
+	struct ctl_table_header	*ipv4_hdr;
 #endif
 	struct ipv4_devconf	*devconf_all;
 	struct ipv4_devconf	*devconf_dflt;

1.5.3.4

From: Pavel Emelyanov <[email protected]>
Date: Wed, 26 Mar 2008 11:55:52 +0300

Applied.