From patchwork Wed Jan 20 14:39:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Abeni X-Patchwork-Id: 12032549 X-Patchwork-Delegate: kuba@kernel.org 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=-15.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham 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 B6E47C4332B for ; Wed, 20 Jan 2021 14:47:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 86072233CE for ; Wed, 20 Jan 2021 14:47:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390841AbhATOoF (ORCPT ); Wed, 20 Jan 2021 09:44:05 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:58980 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390742AbhATOlF (ORCPT ); Wed, 20 Jan 2021 09:41:05 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611153579; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5AnNqYhd4KFsBvi/PyepAne0Mx/FqErybM6LGHv8Wng=; b=O2VCqgQPIMTstafJGZHpaPZ4QsmUHG6LUbMKwh3fHHtuHGEEQToUKv9DOKzym88UvtcWOC hS7gB/iW7Q0Onx8bDLkBHwLWDFTEUpGE03a2d5olpgWeswrPnnKQDeY3m2ly2WQ5c147RX HUtKArbXvVkbIQ1fQd2ZlVd3Ku1MzZ4= 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-187-JKCvMPNdPxScK2vhNn26OQ-1; Wed, 20 Jan 2021 09:39:37 -0500 X-MC-Unique: JKCvMPNdPxScK2vhNn26OQ-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 40FDF107ACE4; Wed, 20 Jan 2021 14:39:36 +0000 (UTC) Received: from gerbillo.redhat.com (ovpn-115-164.ams2.redhat.com [10.36.115.164]) by smtp.corp.redhat.com (Postfix) with ESMTP id 148425D9C2; Wed, 20 Jan 2021 14:39:34 +0000 (UTC) From: Paolo Abeni To: netdev@vger.kernel.org Cc: "David S. Miller" , Jakub Kicinski , mptcp@lists.01.org Subject: [PATCH v2 net-next 4/5] mptcp: schedule work for better snd subflow selection Date: Wed, 20 Jan 2021 15:39:13 +0100 Message-Id: <6c4828f44064aaf7e957e5a2419f25e3e6e0f3b1.1611153172.git.pabeni@redhat.com> In-Reply-To: References: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Otherwise the packet scheduler policy will not be enforced when pushing pending data at MPTCP-level ack reception time. Reviewed-by: Mat Martineau Signed-off-by: Paolo Abeni --- net/mptcp/protocol.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index e741201acc98f..8cb582eee2862 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -2242,6 +2242,7 @@ static void mptcp_worker(struct work_struct *work) if (unlikely(state == TCP_CLOSE)) goto unlock; + mptcp_push_pending(sk, 0); mptcp_check_data_fin_ack(sk); __mptcp_flush_join_list(msk); @@ -2899,10 +2900,14 @@ void __mptcp_check_push(struct sock *sk, struct sock *ssk) if (!mptcp_send_head(sk)) return; - if (!sock_owned_by_user(sk)) - __mptcp_subflow_push_pending(sk, ssk); - else + if (!sock_owned_by_user(sk)) { + if (mptcp_subflow_get_send(mptcp_sk(sk)) == ssk) + __mptcp_subflow_push_pending(sk, ssk); + else + mptcp_schedule_work(sk); + } else { set_bit(MPTCP_PUSH_PENDING, &mptcp_sk(sk)->flags); + } } #define MPTCP_DEFERRED_ALL (TCPF_WRITE_TIMER_DEFERRED)