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Diffstat (limited to 'net/mptcp/protocol.c')
-rw-r--r--net/mptcp/protocol.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 1ff2efbab29e..c9817aa0f413 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -2902,6 +2902,7 @@ bool __mptcp_close(struct sock *sk, long timeout)
struct mptcp_subflow_context *subflow;
struct mptcp_sock *msk = mptcp_sk(sk);
bool do_cancel_work = false;
+ int subflows_alive = 0;
sk->sk_shutdown = SHUTDOWN_MASK;
@@ -2928,6 +2929,8 @@ cleanup:
struct sock *ssk = mptcp_subflow_tcp_sock(subflow);
bool slow = lock_sock_fast_nested(ssk);
+ subflows_alive += ssk->sk_state != TCP_CLOSE;
+
/* since the close timeout takes precedence on the fail one,
* cancel the latter
*/
@@ -2943,6 +2946,12 @@ cleanup:
}
sock_orphan(sk);
+ /* all the subflows are closed, only timeout can change the msk
+ * state, let's not keep resources busy for no reasons
+ */
+ if (subflows_alive == 0)
+ inet_sk_state_store(sk, TCP_CLOSE);
+
sock_hold(sk);
pr_debug("msk=%p state=%d", sk, sk->sk_state);
if (msk->token)