netfilter: netns nf_conntrack: per-netns net.netfilter.nf_conntrack_count sysctl

Note, sysctl table is always duplicated, this is simpler and less
special-cased.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
index fc0a46d64cc..2b50758df6a 100644
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -4,6 +4,7 @@
 #include <linux/list.h>
 #include <asm/atomic.h>
 
+struct ctl_table_header;
 struct nf_conntrack_ecache;
 
 struct netns_ct {
@@ -16,6 +17,9 @@ struct netns_ct {
 #ifdef CONFIG_NF_CONNTRACK_EVENTS
         struct nf_conntrack_ecache *ecache;
 #endif
+#ifdef CONFIG_SYSCTL
+        struct ctl_table_header *sysctl_header;
+#endif
         int                     hash_vmalloc;
         int                     expect_vmalloc;
 };