Received: by 2002:a25:ab43:0:0:0:0:0 with SMTP id u61csp743487ybi; Fri, 14 Jun 2019 02:36:29 -0700 (PDT) X-Google-Smtp-Source: APXvYqziQSwJpo4aldqDOBj/Y3VtrlSNQTdn1p+bK8zM5FawDz9UsgdJ9oTGOdzldXva8olnXJMe X-Received: by 2002:a63:db4e:: with SMTP id x14mr36180241pgi.119.1560504988772; Fri, 14 Jun 2019 02:36:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560504988; cv=none; d=google.com; s=arc-20160816; b=ZxS5HySbSc0J6ZM1PVQpcNlpiezfL7Li7GHxX3Amj3dLD8AdbgLhVM1+6Iu0QiqRbu AOyVSgr9hjhOxOTBEp4tEo1REIGnFb6TFqGl/V68FCTkMxNrgoGE+bvN7I3um4HP5A8w OOYuIk8zCE6Epo1pwTa+TmF7DpsEGcMZO07ARMW4/vWRn9Lo1Lu8xgA1j9KfKMFgLHok ZHabiyeJwgtAkr+xQC5wano7GemZxvB/QenOREAvKFlG1KSBVnyBlP+BlzFF0GqvWKuN whGL4EEno7v+gGIdHCSl59EDKR2UVWrBqCy1T3yA5dtKD3oqgAipsHCrQnthxotZUqzX Ay0A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:dkim-signature; bh=IAxytmldJ+LQ9oXsinyPkN3ds2MZTOAfP2wyBRBDeRg=; b=oiKj1gf93C49eSq4rCHLXRY4v9x50m4o5M7t5Ms+7gx3zVbVYGpnRaBaiOgbvznk8e N7h3lo3t21F4iQIgw4znXM6jzWpKhPkoyhzd3GLJL7ehGqMyte51qr388O3hhJEkIOr+ ehHQTfI7xtVVAw4k3zaRT1/sglebDbTQF+fG8g1CcWmvMroDBM2LrwIp4GKLJEi2ui7I SSauOKdPwcMn+IfgSqivU0GssKYw4ztT/0OoflW0x8bO80TZCZr2xPc2W+d48EgvRbgR NFoBUGMs0Nicfc0e43pS3zPeRi1p1qEoxqCj17R1m+/KXlSzmRvON/U0p99VdcIWQB7a /Hqw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b="znWyHu/m"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 205si2044416pgb.424.2019.06.14.02.36.11; Fri, 14 Jun 2019 02:36:28 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b="znWyHu/m"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727151AbfFNJez (ORCPT + 99 others); Fri, 14 Jun 2019 05:34:55 -0400 Received: from mail-oi1-f195.google.com ([209.85.167.195]:45796 "EHLO mail-oi1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726083AbfFNJey (ORCPT ); Fri, 14 Jun 2019 05:34:54 -0400 Received: by mail-oi1-f195.google.com with SMTP id m206so1458811oib.12 for ; Fri, 14 Jun 2019 02:34:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=IAxytmldJ+LQ9oXsinyPkN3ds2MZTOAfP2wyBRBDeRg=; b=znWyHu/m14+5GXaF3gP7yu7SWXJTq+Wsj2nJNhc8A0PpJXKWYMOxGBSzVgS3mNhdto pIVE++2S8C4JJTU4WjXsC1kHn7wjVXe46T1Q6kfftlp7QWt09aT1nNuG2RkrQEB/cwUE BN5szDO+xZfoBJzWbSPWpS/dcQxVeL1F9QpTJSU12unEdVDilC3LI0FWMn5LQa6QoF62 IyLlVJD452ywDx+di8zbmOYrjVE0AYWCczQVyNnuNZbTqPg2w1bPhp5TGL+dG3+zm4vh Rnvs6oqsivrAR6bIwx8FKP6rEVsUh+jFuN9GlkQ8Jvs4KmgDFlinHxXOP+H4zL/k15fV XHhQ== 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=IAxytmldJ+LQ9oXsinyPkN3ds2MZTOAfP2wyBRBDeRg=; b=IFzRHpaILUtGzjJM33wOA5GIHH2S/J5drMg8VQOlW1W9XJq8HIPWcM+Kze/9Wrc8Lx D3MPjUOtb2LqU5UayFQlJ2aSARueofvCdhXrzyaDR+E6mlSBNFL7guO89Wq2Yv5R6DlX M+JoqlbZV6neew10WTwS26zuASJXSvaG5kXZWszdXgY2Zdve9kJ8SjIsZILvaKvh5c8V hxWGpQXpJzd53JAaYII6LxlX5gWh51N+ivW8pJ3dmWJDJdPSpLmz3YGXihSPfRDRSRVM yFBBWTFIUpk0de4iY2KEDR+74OvYAUrAKQIOQv1+dUeSsci/0HzDnFr96NV7iBE9DOiI omtg== X-Gm-Message-State: APjAAAXU4Xjk8YwO167sUiNmc6bm6rryaQZ7f+sY1uq/ezV8EKPrAVLJ I9iZU5lUDeLfmnkInTldqosbDk6qGXVSz4o4DvJ+PAqF1+s= X-Received: by 2002:aca:f513:: with SMTP id t19mr1276030oih.76.1560504894070; Fri, 14 Jun 2019 02:34:54 -0700 (PDT) MIME-Version: 1.0 References: <20190613223408.139221-1-fengc@google.com> In-Reply-To: <20190613223408.139221-1-fengc@google.com> From: Sumit Semwal Date: Fri, 14 Jun 2019 15:04:42 +0530 Message-ID: Subject: Re: [PATCH v5 0/3] Improve the dma-buf tracking To: Chenbo Feng Cc: LKML , DRI mailing list , Android Kernel Team Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Chenbo, On Fri, 14 Jun 2019 at 04:04, Chenbo Feng wrote: > > Currently, all dma-bufs share the same anonymous inode. While we can count > how many dma-buf fds or mappings a process has, we can't get the size of > the backing buffers or tell if two entries point to the same dma-buf. And > in debugfs, we can get a per-buffer breakdown of size and reference count, > but can't tell which processes are actually holding the references to each > buffer. Thanks for the series; applied to drm-misc-next. > Best, Sumit.