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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7353EC77B7D for ; Mon, 15 May 2023 18:15:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234345AbjEOSPB (ORCPT ); Mon, 15 May 2023 14:15:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51534 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245179AbjEOSO2 (ORCPT ); Mon, 15 May 2023 14:14:28 -0400 Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D36DF299D5 for ; Mon, 15 May 2023 11:11:33 -0700 (PDT) Received: by mail-wm1-x329.google.com with SMTP id 5b1f17b1804b1-3f42397f41fso380195e9.1 for ; Mon, 15 May 2023 11:11:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1684174292; x=1686766292; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=XxBHcmYEEGMHA9ad0xOI/PjCS69JbEHkdxMGDWsLPjU=; b=JFDWQv8EVHGSRLtPEQA12I9SLzZbF6NYDfvptDyQD0hdSBVCIqkBNIxqGS1MNHIUc6 NK03522G1HEGD/5rNy1RXV4bn7hj0455dCsotIumzmTby74qspiRcF8Wbi4+JuAWqHr0 wl+W2FeCqsPhqT1NfhViU5k7rT59tkopoKsckaki8F8/516N2XzuWpbM2tdK0PPCnKjF dvJNqBdoJbhZ5hx0ggvpKiBePZucGByiTIGMUm5gBNwS2FpsQKpjRyHCgWpxB/WYauMA nfgp3tg+gEZmEAJXJLV9RUisXUeykmSEGyU7i4yOZctadsmHhz9rl+FenhejLq+wszWR jccQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684174292; x=1686766292; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=XxBHcmYEEGMHA9ad0xOI/PjCS69JbEHkdxMGDWsLPjU=; b=aAY/G8WO8Y2Hna8i1PARnHAWNh8xLRFYONPl/QszdVIY0LKbu9A+rxGQqcjREgGmmS jKTXKp3Bl9cmpcTtCTiGBBt0Gym1tmQJGnSjMuz44jSEz5tRfcqwjWup9lOytPZ+ll+g NI/9a1zdwUsbpfYQkoMxfCAu3kHB96R1Byl8l8/bVrMsOQGBeQRLdWfiebjQliDQkbJm rNrkEe73oz6PFQvZLwT7lcYD+szpqOtcscXW1+z/rzk6BUhv4nSDYNOTcAMaCqWsH4r4 WgOHz3H/uaxPXmV7WGPznxBDcdkeduxIwZ++nW6RXnGYhzckL5XRoe/6RG8FknUWgiEv Q6Kg== X-Gm-Message-State: AC+VfDw2ZtXGB5buToZwHlARgtW4BpR4c0/wdrHf/ePXcSXtYrS/8D7F e5E2xkalt+yqNGwS8hy1Pj3R35ZgsMFIS1kFxwnWLw== X-Google-Smtp-Source: ACHHUZ4ovwt5ahjBafldIK4jYLlMK+Cfyhj/ba0xTxh2Wksh897OhkKZeE+AKtkBz2SUXQDjDPg4bCjirF7o+n+xj2U= X-Received: by 2002:a05:600c:3547:b0:3f4:1dce:3047 with SMTP id i7-20020a05600c354700b003f41dce3047mr6173wmq.2.1684174292101; Mon, 15 May 2023 11:11:32 -0700 (PDT) MIME-Version: 1.0 References: <1d9f84b1-debb-d92a-9f91-4ff9650ef6e0@kernel.org> In-Reply-To: <1d9f84b1-debb-d92a-9f91-4ff9650ef6e0@kernel.org> From: Eric Dumazet Date: Mon, 15 May 2023 20:11:18 +0200 Message-ID: Subject: Re: [PATCH net-next 1/2] net/tcp: don't peek at tail for io_uring zc To: David Ahern Cc: Pavel Begunkov , io-uring@vger.kernel.org, netdev@vger.kernel.org, davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Mon, May 15, 2023 at 7:27=E2=80=AFPM David Ahern wr= ote: > > On 5/15/23 10:06 AM, Pavel Begunkov wrote: > > Move tcp_write_queue_tail() to SOCK_ZEROCOPY specific flag as zerocopy > > setup for msghdr->ubuf_info doesn't need to peek into the last request. > > > > Signed-off-by: Pavel Begunkov > > --- > > net/ipv4/tcp.c | 3 +-- > > 1 file changed, 1 insertion(+), 2 deletions(-) > > > > Reviewed-by: David Ahern Reviewed-by: Eric Dumazet