ping: move ping_group_range out of CONFIG_SYSCTL

Similarly, when CONFIG_SYSCTL is not set, ping_group_range should still
work, just that no one can change it. Therefore we should move it out of
sysctl_net_ipv4.c. And, it should not share the same seqlock with
ip_local_port_range.

BTW, rename it to ->ping_group_range instead.

Cc: David S. Miller <davem@davemloft.net>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Reported-by: Stefan de Konink <stefan@konink.de>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 1 deletions

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 3d95cd475316..b2704fd0ec80 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -20,6 +20,11 @@ struct local_ports {
         int             range[2];
 };
 
+struct ping_group_range {
+        seqlock_t       lock;
+        kgid_t          range[2];
+};
+
 struct netns_ipv4 {
 #ifdef CONFIG_SYSCTL
         struct ctl_table_header *forw_hdr;
@@ -72,7 +77,7 @@ struct netns_ipv4 {
         int sysctl_ip_no_pmtu_disc;
         int sysctl_ip_fwd_use_pmtu;
 
-        kgid_t sysctl_ping_group_range[2];
+        struct ping_group_range ping_group_range;
 
         atomic_t dev_addr_genid;