Received: by 2002:a05:6a10:2785:0:0:0:0 with SMTP id ia5csp51216pxb; Tue, 12 Jan 2021 19:46:01 -0800 (PST) X-Google-Smtp-Source: ABdhPJzWECGakUbFR7UoYO0jsnV7D5o2GW1HtlFN1yVQelT3bj5XBl2B+RyXEXsj/MLcAjHGONjH X-Received: by 2002:a17:907:20b5:: with SMTP id pw21mr109976ejb.494.1610509560920; Tue, 12 Jan 2021 19:46:00 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1610509560; cv=none; d=google.com; s=arc-20160816; b=EZHCi9eKRG6mbVlS8qOf7cVLoZcmCLCCVZi61gS/rgYAczQWhcXnnkttLiRjzZWMU4 KmpEzoQD4HlPHQwZ++2fkdKeulgERdvDxf07Ggh53DUYyz1N6BRO3Mfc6sNfdMCAMeHU 0Or99ujRYUJyY0AvZ21vlwWLec3t2BtTuTKcgoifhBEXPE/HGAPgXVfA1Iai9XETP7bz nnrMUozlmcu+/B0SrF4Hnimj5DaHD7RFZ64mlAXKYZArd/vK94jk0U8Tdm+E6nTLC1fX 1x5CFcn8DEvGpnUcvD22830RctI4FiMWGU9v3VkeC/kgl4FHRJvWLKpjJs2zw4KdtfuU Hhcg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :in-reply-to:mime-version:user-agent:date:message-id:from:references :cc:to:subject:dkim-signature; bh=hxL8OEaWU3eYX5zkce+hWBI9FKYUlThAgSoqW/uf7O8=; b=aLgAZeBOIzFQhkusbEwSVs04UAyOXTGLKxGNYK5PuSOqszighBTVqhcVyFmkUWgjFU oZ+cdka9o7GidnABYZnsX+zmx8CSSGqNg/RWRMeGh7gjBTcFuk6kSGKXDdM8VeapG6X9 qP4pbmzkASGO5bTsj4Znsg3+4/8ExQ29+kEBM/3I3/Z3SpKGf5wOepSzpZkUSp2MgekQ hxXhnmxXbJcgT4z9Q9Xmf+0vDVTza1MFmIZf4WMNoAWCImRVl0CnzQamaAqGukDGlbM/ QDCebB3Ayj97Zu5Ftx43CDrJJ8gIgdB5OvBRCvKGFMCIRQgoXlIUNX//d1p4L5QNbl11 mL8Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=merlin.20170209 header.b=uftT7oMt; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id eb13si477975edb.8.2021.01.12.19.45.38; Tue, 12 Jan 2021 19:46:00 -0800 (PST) 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=@infradead.org header.s=merlin.20170209 header.b=uftT7oMt; 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 S1725884AbhAMDjg (ORCPT + 99 others); Tue, 12 Jan 2021 22:39:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38642 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725775AbhAMDjf (ORCPT ); Tue, 12 Jan 2021 22:39:35 -0500 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F042C061575; Tue, 12 Jan 2021 19:38:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:Subject:Sender :Reply-To:Content-ID:Content-Description; bh=hxL8OEaWU3eYX5zkce+hWBI9FKYUlThAgSoqW/uf7O8=; b=uftT7oMtzIxyzEugJCySOdTRkP X32nlOL1T3NepoxM7TOeB7Lp9paSgyzcGqss53uUXuxbDJv4tBjCBYPlCJy8qUBNJc3i9j8qzP1yA rW/UY9HctSNXfDYN1rAmGfrsOK1mo/to7tckido6dc6Gp2C8czL2vpZtEG8Nc3zAPos8vcbML92uR ABDI/RzhhTu9CPf7Xs/XTPdn174AGFwsQmrqDQv6BVaFGKADMbXI9/GLlTnhm61dwZHOiPjDt5PJP Qo0mhyGoY5XMQdtEBmhs4mvzWzylRLJZrngdU6r9Pn0affWFmPQB2xENLptFaQ7pCsqftfk2U/WJM OO+UFBtw==; Received: from [2601:1c0:6280:3f0::9abc] by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzWzg-0001Lx-TY; Wed, 13 Jan 2021 03:38:49 +0000 Subject: Re: [PATCH v3 4/4] dma-buf: heaps: add chunk heap to dmabuf heaps To: Minchan Kim , Andrew Morton Cc: linux-mm , LKML , hyesoo.yu@samsung.com, david@redhat.com, mhocko@suse.com, surenb@google.com, pullip.cho@samsung.com, joaodias@google.com, hridya@google.com, john.stultz@linaro.org, sumit.semwal@linaro.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, hch@infradead.org, robh+dt@kernel.org, linaro-mm-sig@lists.linaro.org References: <20210113012143.1201105-1-minchan@kernel.org> <20210113012143.1201105-5-minchan@kernel.org> From: Randy Dunlap Message-ID: <23b60450-b6ac-447b-4a61-fc4649c3a390@infradead.org> Date: Tue, 12 Jan 2021 19:38:40 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: <20210113012143.1201105-5-minchan@kernel.org> 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 1/12/21 5:21 PM, Minchan Kim wrote: > +config DMABUF_HEAPS_CHUNK > + bool "DMA-BUF CHUNK Heap" > + depends on DMABUF_HEAPS && DMA_CMA > + help > + Choose this option to enable dma-buf CHUNK heap. This heap is backed > + by the Contiguous Memory Allocator (CMA) and allocates the buffers that > + arranged into a list of fixed size chunks taken from CMA. maybe: are arranged into -- ~Randy You can't do anything without having to do something else first. -- Belefant's Law