Received: by 2002:a05:6a10:17d3:0:0:0:0 with SMTP id hz19csp3150895pxb; Tue, 20 Apr 2021 01:31:29 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzqCqAMAATUbIXPSTBOVOoQa1TYIdTpmXtzQhr222IL9yBsD0ZlTdXz+sBLOsWaPSNZKaH5 X-Received: by 2002:a17:906:a10e:: with SMTP id t14mr25914935ejy.103.1618907489177; Tue, 20 Apr 2021 01:31:29 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1618907489; cv=none; d=google.com; s=arc-20160816; b=HX4jequu7uCbUdUPEc10eCHmyFqteVZr7vYI3Kno1frfGc/nDKfeeSZF41Aj63jzMf J5OsM4ZxGC5+wGSnRanURpiS2gVuVEXg0vLfZScG2ODU+bSFNmnEG+OkIc5C7c88OmRU aW/4Vx4U5QniAI3aI8Fwu6i+pDJukW3jFHa/WupwnMJhgRExbSI1HrauSL2h6TKNjVlY C7xm838unIML0jSaNpVrJeAMH+sEtOxMw8hZUaj24/LZ9pNpyMliJwZJeYq/DOI9GXjy u6sIvL3TOySy1b04yxY1CyaGzhqqY95sC2f0LEomKqwVivMfDDZq/3OgzMrsFnQWQc+0 gLcQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=Gc2OYO7Gop4pXOyn2eMOrNhPvb4JX9AiP/LihACJjrQ=; b=Fh2MLeG/Tlc6RpnQ84UOmD71ADmw63op94NNcml/g+AoXDv/2zidfqmai8rBuoVW0W Vv4juhM6cpiEGWj9viJwVvboxfMmixSwVcE1FbJ+paHXNKO8GudqusaXb9xJrClYZR4O wAL5hJvN9p611lnreqBAMZIAZbK2R+kmjLxGhp5KtEKG3Eb2JWay9nT5lyfe7chISGVz uBuor4q6VplEC+RBKUJfKtofqDzNWeCG6lXR2Z7zS8p/8kvjHxtWdWFJA0ZV3hcKF5HP 26sAEwV0JjJUe0ExYKfGOKZrjpdkqG2CSExFiYy1Y04N98eWKJgxPB+pHQNgjlbSiAVf 2UeQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@suse.com header.s=susede1 header.b=BCNcFuuv; 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; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=suse.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id g21si15101618edy.78.2021.04.20.01.31.05; Tue, 20 Apr 2021 01:31:29 -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=@suse.com header.s=susede1 header.b=BCNcFuuv; 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; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=suse.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230379AbhDTIak (ORCPT + 99 others); Tue, 20 Apr 2021 04:30:40 -0400 Received: from mx2.suse.de ([195.135.220.15]:57554 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229551AbhDTIaj (ORCPT ); Tue, 20 Apr 2021 04:30:39 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1618907407; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Gc2OYO7Gop4pXOyn2eMOrNhPvb4JX9AiP/LihACJjrQ=; b=BCNcFuuvbhFnjxTxkMtniV6iWAWam2IqyWerccUoN/HC6fZYKEpWY2rM4gXw/GDh0DIDxX 7LkSj6Fje6422drCh/GTOBK9zvwW19pEVV9/TN8slkM9hK3/2AmLZN+j3iji2Ohk0CsFvB ZDwJHGFz/U5maxLX/pucXx1QLqZm9no= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id D66A1AE38; Tue, 20 Apr 2021 08:30:06 +0000 (UTC) Date: Tue, 20 Apr 2021 10:30:06 +0200 From: Michal Hocko To: Peter Enderborg Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Sumit Semwal , Christian =?iso-8859-1?Q?K=F6nig?= , Alexey Dobriyan , Andrew Morton , Muchun Song , Roman Gushchin , Shakeel Butt , NeilBrown , Sami Tolvanen , Mike Rapoport , linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, Matthew Wilcox , Jonathan Corbet , Randy Dunlap , Kees Cook , Mauro Carvalho Chehab , Alexey Gladkov , Feng Tang , linux-doc@vger.kernel.org Subject: Re: [PATCH 0/2 V6]Add dma-buf counter Message-ID: References: <20210420082220.7402-1-peter.enderborg@sony.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210420082220.7402-1-peter.enderborg@sony.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 20-04-21 10:22:18, Peter Enderborg wrote: > The dma-buf counter is a metric for mapped memory used by it's clients. > It is a shared buffer that is typically used for interprocess communication > or process to hardware communication. In android we used to have ION,. but > it is now replaced with dma-buf. ION had some overview metrics that was similar. The discussion around the previous version is still not over and as it seems your proposed approach is not really viable. So please do not send new versions until that is sorted out. Thanks! -- Michal Hocko SUSE Labs