[Devel] [PATCH RH8] sysctl/net: revert hunk which makes tcp_syncookies immutable

[Pavel Tikhomirov]

This sysctl is virtualized per network namespace now, there is no point
in making it immutable.

Originally in vz7 it was host-only sysctl so the idea was not to allow
container to overwrite it (though actual hunk looks like newer working
as this sysctl was only explicitly created for init netns and was not
visible in container).

Found while porting to vz9.

https://jira.sw.ru/browse/PSBM-133988
Fixes: 5d12e1371ba7 ("ve/sysctl/ipc: mark as virtualized")
Signed-off-by: Pavel Tikhomirov <ptikhomirov at virtuozzo.com>
---
 net/ipv4/sysctl_net_ipv4.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 0582cbd9dda8..a4bb23655c96 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -848,7 +848,7 @@ static struct ctl_table ipv4_net_table[] = {
 		.data		= &init_net.ipv4.sysctl_tcp_syncookies,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec_immutable,
+		.proc_handler   = proc_dointvec
 	},
 #endif
 	{
-- 
2.31.1