[CRIU] [PATCH 1/3] tcp: allow to enable repair mode for sockets in any state

[Andrey Vagin]

The repair mode is used for dumping state of tcp connections
(sequence numbers, queues, options, etc).

Currently the repair mode can be enalbed only for sockets in the
TCP_ESTABLISHED state. If a socket in another state, its internal
state can not be dumped.

I see nothing wrong to allow enabling of the repair mode for any state.

Signed-off-by: Andrey Vagin <avagin at openvz.org>
---
 net/ipv4/tcp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 9f3a2db..819fa37 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2372,8 +2372,7 @@ void tcp_sock_destruct(struct sock *sk)
 
 static inline bool tcp_can_repair_sock(const struct sock *sk)
 {
-	return ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN) &&
-		((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_ESTABLISHED));
+	return ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN);
 }
 
 static int tcp_repair_options_est(struct tcp_sock *tp,
-- 
1.8.5.3