From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.1 required=3.0 tests=BAYES_05,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 29D10C433E0 for ; Fri, 19 Mar 2021 12:00:12 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 97F4564F6B for ; Fri, 19 Mar 2021 12:00:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 97F4564F6B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=mptcp-bounces@lists.01.org Received: from ml01.vlan13.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 51CF5100EB34A; Fri, 19 Mar 2021 05:00:11 -0700 (PDT) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=170.10.133.124; helo=us-smtp-delivery-124.mimecast.com; envelope-from=pabeni@redhat.com; receiver= Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 55D50100EB325 for ; Fri, 19 Mar 2021 05:00:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1616155207; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=m5JTzbLodmofhIHxROPUWT8DTrQsdJrvgmE8YlGmJb0=; b=gYlYg/m+rD5K77JXGVlFAiUKb7g7i/L+oXSdfpVUN4T8OTZ8Y8cT9A/jbSi/UiKAzny7YU 7AdX4WCI8SOaXzd9TA4X/rDyar3AWXFTOd4PkEzisB7nEoN97Vw53sG9TVm6DeAbJ50UKU 5kjgHRb1QfXcZ1ZV8zbobi4UDZsOoPg= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-228-gJTf6a4oOwyF1qDiZqDgnA-1; Fri, 19 Mar 2021 08:00:06 -0400 X-MC-Unique: gJTf6a4oOwyF1qDiZqDgnA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0AE011899441; Fri, 19 Mar 2021 12:00:05 +0000 (UTC) Received: from ovpn-112-226.ams2.redhat.com (ovpn-112-226.ams2.redhat.com [10.36.112.226]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3EF9960BF1; Fri, 19 Mar 2021 12:00:04 +0000 (UTC) Message-ID: <22e07e2c8396be15c9fff8a0fc7edb1e60aab6bd.camel@redhat.com> From: Paolo Abeni To: Florian Westphal , mptcp@lists.01.org Date: Fri, 19 Mar 2021 13:00:03 +0100 In-Reply-To: <20210317163828.27406-10-fw@strlen.de> References: <20210317163828.27406-1-fw@strlen.de> <20210317163828.27406-10-fw@strlen.de> User-Agent: Evolution 3.36.5 (3.36.5-2.fc32) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=pabeni@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Message-ID-Hash: GI6M4XGO27IIXIYFGA46KKGW7AQQJLGW X-Message-ID-Hash: GI6M4XGO27IIXIYFGA46KKGW7AQQJLGW X-MailFrom: pabeni@redhat.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; suspicious-header X-Mailman-Version: 3.1.1 Precedence: list Subject: [MPTCP] Re: [PATCH mptcp-next 9/9] mptcp: sockopt: handle TCP_INFO List-Id: Discussions regarding MPTCP upstreaming Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Wed, 2021-03-17 at 17:38 +0100, Florian Westphal wrote: > Tries to follow the subflow most recently used from transmit. I guess this one is the most tricky so far ;) One downside with picking the most recent one, is that different subflows could be picked in successive getsockopt, possibly fooling the userspace with e.g. decreasing seg_in/seg_out. What if we always pick the first subflow? /P _______________________________________________ mptcp mailing list -- mptcp@lists.01.org To unsubscribe send an email to mptcp-leave@lists.01.org