Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.38 as permitted sender) client-ip=23.128.96.38;
Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley
        Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United
        Kingdom.
        Registered in England and Wales under Company Registration No. 3798903
From:   David Howells <dhowells@redhat.com>
To:     linux-afs@lists.infradead.org
cc:     dhowells@redhat.com, Marc Dionne <marc.dionne@auristor.com>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH net] rxrpc: Fix two connection reaping bugs
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <783910.1698364174.1@warthog.procyon.org.uk>
Content-Transfer-Encoding: quoted-printable
Date:   Fri, 27 Oct 2023 00:49:34 +0100
Message-ID: <783911.1698364174@warthog.procyon.org.uk>
Precedence: bulk

    =

Fix two connection reaping bugs:

 (1) rxrpc_connection_expiry is in units of seconds, so
     rxrpc_disconnect_call() needs to multiply it by HZ when adding it to
     jiffies.

 (2) rxrpc_client_conn_reap_timeout() should set RXRPC_CLIENT_REAP_TIMER i=
f
     local->kill_all_client_conns is clear, not if it is set (in which cas=
e
     we don't need the timer).  Without this, old client connections don't
     get cleaned up until the local endpoint is cleaned up.

Fixes: 5040011d073d ("rxrpc: Make the local endpoint hold a ref on a conne=
cted call")
Fixes: 0d6bf319bc5a ("rxrpc: Move the client conn cache management to the =
I/O thread")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: netdev@vger.kernel.org
cc: linux-afs@lists.infradead.org
---
 net/rxrpc/conn_object.c  |    2 +-
 net/rxrpc/local_object.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c
index ac85d4644a3c..df8a271948a1 100644
--- a/net/rxrpc/conn_object.c
+++ b/net/rxrpc/conn_object.c
@@ -212,7 +212,7 @@ void rxrpc_disconnect_call(struct rxrpc_call *call)
 		conn->idle_timestamp =3D jiffies;
 		if (atomic_dec_and_test(&conn->active))
 			rxrpc_set_service_reap_timer(conn->rxnet,
-						     jiffies + rxrpc_connection_expiry);
+						     jiffies + rxrpc_connection_expiry * HZ);
 	}
 =

 	rxrpc_put_call(call, rxrpc_call_put_io_thread);
diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c
index 7d910aee4f8c..c553a30e9c83 100644
--- a/net/rxrpc/local_object.c
+++ b/net/rxrpc/local_object.c
@@ -87,7 +87,7 @@ static void rxrpc_client_conn_reap_timeout(struct timer_=
list *timer)
 	struct rxrpc_local *local =3D
 		container_of(timer, struct rxrpc_local, client_conn_reap_timer);
 =

-	if (local->kill_all_client_conns &&
+	if (!local->kill_all_client_conns &&
 	    test_and_set_bit(RXRPC_CLIENT_CONN_REAP_TIMER, &local->client_conn_f=
lags))
 		rxrpc_wake_up_io_thread(local);
 }