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=-3.8 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 DB7BCC433E0 for ; Tue, 4 Aug 2020 07:27:46 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 D93E12076C for ; Tue, 4 Aug 2020 07:27:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="gP0hGxdZ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D93E12076C Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 912DF6E44C; Tue, 4 Aug 2020 07:27:15 +0000 (UTC) Received: from mail-vk1-xa42.google.com (mail-vk1-xa42.google.com [IPv6:2607:f8b0:4864:20::a42]) by gabe.freedesktop.org (Postfix) with ESMTPS id E9FF36E077 for ; Mon, 3 Aug 2020 16:00:13 +0000 (UTC) Received: by mail-vk1-xa42.google.com with SMTP id x142so5374165vke.0 for ; Mon, 03 Aug 2020 09:00:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=AQC5OSI+ot4HICgMI1hBiF+Gos4KF9rtoTAXqBLWz5k=; b=gP0hGxdZpv7oi/HJF0iairUbhXDSeECExkx/WUmvKbJIKYqRHFbhrSant0W/qarBAu pt2QS00SD0C3sScBrjjH8PuJSo/uiRusGI8NdinY72x5wOlbs+la767nkgtU1+AdO/4R sVgh/KH5EXT8KXDfD+VCxBTK4X1AEadmwBpBrMVvntYBujslfuoMPSdeAJPR+0zoXtmU az8f0YQ3IGNq2/+IKVQAVs5iYU/bcziJbdbgOWftXf0g+mybpPTS5/8EnV/nQwq4dSqm ZRV9gMwTdIcvKiJF/9J0XUaNMTR7Pm4yz/Nv7W/qKW98y0pV5r5ge3KKLHyEx2GZZhW8 O0Hg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=AQC5OSI+ot4HICgMI1hBiF+Gos4KF9rtoTAXqBLWz5k=; b=fIkOfRS7vIlCA0oPtxBxEUOiHbPeqYmu95Y2sOAfCI7zwkvDP/IAHj31hZakBzZGFm WOwVDyIGiExVmi//kOa2GZWbHh0o9JptSEys3Zdmj8tPmmd3EomE0AWV56co4H3UiUeu 12eQf3qcfSpolbBX4ZkcevE7JyzrWxlZL0F1SWLIzf8o9HFR2gu3e0n4qtDwM+Oc9KKU z0Ac8gQoiQQv6Xl5OWJzG5ziaXm0icb2TeOLi6FDhd7tZrK2jIcDod0T4BSBBf7+/cO3 EofaRtiToBzOOa96z4yne1JNiNayqgA++dmaKzGNuFVnOFJIuR7WtvSOOxsS/ZZT0p+K DjFA== X-Gm-Message-State: AOAM532S0FOgwD0cHABvggQNCAdrk41vG5ti+BuWgk2xzWIiw1a2xwNl xozSvsaMGd374HYxUOnWT6x+OqPBfdgUmwe4gbU9Dw== X-Google-Smtp-Source: ABdhPJxBkWFzXg/y1w5xTYtUJSHjvCQFO/a1nE0RcfXFpI2HgJqGujkazyU0S+p/ymKJ5J9VS+bR1YpMln1PD/g9du0= X-Received: by 2002:a1f:9651:: with SMTP id y78mr1828501vkd.5.1596470412618; Mon, 03 Aug 2020 09:00:12 -0700 (PDT) MIME-Version: 1.0 References: <20200803144719.3184138-1-kaleshsingh@google.com> <20200803144719.3184138-3-kaleshsingh@google.com> <20200803154125.GA23808@casper.infradead.org> In-Reply-To: <20200803154125.GA23808@casper.infradead.org> From: Suren Baghdasaryan Date: Mon, 3 Aug 2020 09:00:00 -0700 Message-ID: Subject: Re: [PATCH 2/2] dmabuf/tracing: Add dma-buf trace events To: Matthew Wilcox X-Mailman-Approved-At: Tue, 04 Aug 2020 07:27:04 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jonathan Corbet , DRI mailing list , linux-doc@vger.kernel.org, Ioannis Ilkos , LKML , Steven Rostedt , linaro-mm-sig@lists.linaro.org, Hridya Valsaraju , Ingo Molnar , Alexander Viro , Kalesh Singh , linux-fsdevel@vger.kernel.org, kernel-team , linux-media@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Mon, Aug 3, 2020 at 8:41 AM Matthew Wilcox wrote: > > On Mon, Aug 03, 2020 at 02:47:19PM +0000, Kalesh Singh wrote: > > +static void dma_buf_fd_install(int fd, struct file *filp) > > +{ > > + trace_dma_buf_fd_ref_inc(current, filp); > > +} > > You're adding a new file_operation in order to just add a new tracepoint? > NACK. Hi Matthew, The plan is to attach a BPF to this tracepoint in order to track dma-buf users. If you feel this is an overkill, what would you suggest as an alternative? _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel