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[23.128.96.18]) by mx.google.com with ESMTP id bh4si2608916ejb.56.2021.06.16.06.30.47; Wed, 16 Jun 2021 06:31:12 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel-dk.20150623.gappssmtp.com header.s=20150623 header.b=A4oVgkat; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232671AbhFPMof (ORCPT + 99 others); Wed, 16 Jun 2021 08:44:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57228 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230197AbhFPMoe (ORCPT ); Wed, 16 Jun 2021 08:44:34 -0400 Received: from mail-oi1-x22d.google.com (mail-oi1-x22d.google.com [IPv6:2607:f8b0:4864:20::22d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A77FC06175F for ; Wed, 16 Jun 2021 05:42:28 -0700 (PDT) Received: by mail-oi1-x22d.google.com with SMTP id m137so2381095oig.6 for ; Wed, 16 Jun 2021 05:42:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=Ov+6TdsxyPnAE/go4uKPTaq+xRfN+cq8OJH2b808SUw=; b=A4oVgkatl9TNacrtfcviixMIg2w3VwMxysVzP8wO7DgKtO8kcNFJX8iThUl71Pj5+Z 3FyfOa+NpST8Bbq830FAWTicGvNDSSQIr5FJ5RbNjguoMRDYSj1u9xIduzXox8fWtWdP wbUPt5mb/NTcEoRBIbgC0k/PGxqrE6BNWXKdRBJbHL6SE2HKKFUwvjzYZliCXNoUs4Ij xik+ZCmuKFLBVAztg2AW6jtV/q96CWj8FxZjOCnQsmJrfuTWPaT9f6eYe5//QCyK/AzC sSyJBWcuBh7uAzJaV7nUzMosYHwxK7Xb1AZU5i/LztwJbMVE7SLO5DrR3TnBdZ9MELNR wlUA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=Ov+6TdsxyPnAE/go4uKPTaq+xRfN+cq8OJH2b808SUw=; b=K/68/fTukPMYoDgjtOiDPr9sBObosR70ADPs9jSCBXXEjMg6KZK1XNAj+S4X42ymHr +TtS1uPdmh1Qzdx2e++ylbontPgGCNgCRjURXLq3m/1TZgtp40LFKNmASvuQdw7z0pl3 hwcsFZz/AVtrxrsd0I1ZCszHQxkyV0ZoAG44A+55J831NJQ0GIx1NjidgE3HEHkMa39y 3Lxj9jOyl9j4wsR1Wa+LqigI8sxB1qSfZl3oVxjBAz9dOa8E53OatDD7QRb0x5b9+4Gy WgBHpu/KAFb+39fmsUtw/lt1TowbHeqRE6LEVVVMK0aTFCmdFcvkR/f1sdpMAEK9nmoC Erug== X-Gm-Message-State: AOAM532cpl6sGyfPtRo5RaSNnq04K7MkvelUIOTtmH5fwB46boz/A2vg +RSSdAB7jJZ8mrmaiY9RfWrQPI5CW39aNA== X-Received: by 2002:a05:6808:1482:: with SMTP id e2mr3455908oiw.150.1623847347463; Wed, 16 Jun 2021 05:42:27 -0700 (PDT) Received: from [192.168.1.134] ([198.8.77.61]) by smtp.gmail.com with ESMTPSA id e10sm501276otr.5.2021.06.16.05.42.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 16 Jun 2021 05:42:27 -0700 (PDT) Subject: Re: [PATCH v2 1/3] io_uring: Add to traces the req pointer when available To: Olivier Langlois , Pavel Begunkov , Steven Rostedt , Ingo Molnar , io-uring@vger.kernel.org, linux-kernel@vger.kernel.org References: <60be7e1b.1c69fb81.986e4.c6b5SMTPIN_ADDED_MISSING@mx.google.com> From: Jens Axboe Message-ID: <7e219aa8-a7b0-a15b-531b-f8926d6d7f3c@kernel.dk> Date: Wed, 16 Jun 2021 06:42:25 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <60be7e1b.1c69fb81.986e4.c6b5SMTPIN_ADDED_MISSING@mx.google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/31/21 12:36 AM, Olivier Langlois wrote: > The req pointer uniquely identify a specific request. > Having it in traces can provide valuable insights that is not possible > to have if the calling process is reusing the same user_data value. Applied 1-3, thanks. -- Jens Axboe