From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758518AbZFPUiQ (ORCPT ); Tue, 16 Jun 2009 16:38:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753081AbZFPUh6 (ORCPT ); Tue, 16 Jun 2009 16:37:58 -0400 Received: from mx2.redhat.com ([66.187.237.31]:59427 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752885AbZFPUh5 (ORCPT ); Tue, 16 Jun 2009 16:37:57 -0400 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 Subject: [PATCH 1/2] RxRPC: Don't attempt to reuse aborted connections To: torvalds@osdl.org, akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, linux-afs@lists.infradead.org, netdev@vger.kernel.org, David Howells Date: Tue, 16 Jun 2009 21:36:44 +0100 Message-ID: <20090616203644.4447.24960.stgit@warthog.procyon.org.uk> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Connections that have seen a connection-level abort should not be reused as the far end will just abort them again; instead a new connection should be made. Connection-level aborts occur due to such things as authentication failures. Signed-off-by: David Howells --- net/rxrpc/ar-connection.c | 10 ++++++++++ net/rxrpc/ar-connevent.c | 7 ++++++- 2 files changed, 16 insertions(+), 1 deletions(-) diff --git a/net/rxrpc/ar-connection.c b/net/rxrpc/ar-connection.c index 67e38a0..9f1ce84 100644 --- a/net/rxrpc/ar-connection.c +++ b/net/rxrpc/ar-connection.c @@ -444,6 +444,11 @@ int rxrpc_connect_call(struct rxrpc_sock *rx, conn = list_entry(bundle->avail_conns.next, struct rxrpc_connection, bundle_link); + if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) { + list_del_init(&conn->bundle_link); + bundle->num_conns--; + continue; + } if (--conn->avail_calls == 0) list_move(&conn->bundle_link, &bundle->busy_conns); @@ -461,6 +466,11 @@ int rxrpc_connect_call(struct rxrpc_sock *rx, conn = list_entry(bundle->unused_conns.next, struct rxrpc_connection, bundle_link); + if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) { + list_del_init(&conn->bundle_link); + bundle->num_conns--; + continue; + } ASSERTCMP(conn->avail_calls, ==, RXRPC_MAXCALLS); conn->avail_calls = RXRPC_MAXCALLS - 1; ASSERT(conn->channels[0] == NULL && diff --git a/net/rxrpc/ar-connevent.c b/net/rxrpc/ar-connevent.c index dc5cb1e..0505cdc 100644 --- a/net/rxrpc/ar-connevent.c +++ b/net/rxrpc/ar-connevent.c @@ -150,11 +150,15 @@ static int rxrpc_process_event(struct rxrpc_connection *conn, u32 serial; int loop, ret; - if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) + if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) { + kleave(" = -ECONNABORTED [%u]", conn->state); return -ECONNABORTED; + } serial = ntohl(sp->hdr.serial); + _enter("{%d},{%u,%%%u},", conn->debug_id, sp->hdr.type, serial); + switch (sp->hdr.type) { case RXRPC_PACKET_TYPE_ABORT: if (skb_copy_bits(skb, 0, &tmp, sizeof(tmp)) < 0) @@ -199,6 +203,7 @@ static int rxrpc_process_event(struct rxrpc_connection *conn, return 0; default: + _leave(" = -EPROTO [%u]", sp->hdr.type); return -EPROTO; } }