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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9F303C433F5 for ; Wed, 23 Mar 2022 16:47:47 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3E21E6B0073; Wed, 23 Mar 2022 12:47:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 391E06B0074; Wed, 23 Mar 2022 12:47:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 25A816B0075; Wed, 23 Mar 2022 12:47:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0074.hostedemail.com [216.40.44.74]) by kanga.kvack.org (Postfix) with ESMTP id 1672C6B0073 for ; Wed, 23 Mar 2022 12:47:47 -0400 (EDT) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id B83D91828AC65 for ; Wed, 23 Mar 2022 16:47:46 +0000 (UTC) X-FDA: 79276232532.27.0330764 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf20.hostedemail.com (Postfix) with ESMTP id 52CA51C0041 for ; Wed, 23 Mar 2022 16:47:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=bA8MZzQPjp8dAVh8AH3lrO5YO+7426Hn3PdSAQ7U40A=; b=hv6bkUf5iVKGgR4kAPXgXdFnv7 QwkhGHw+PJutk3Jt9uhWizvVG75GGC6S9LzhGI/b9Zf9trDH7eMUQ9cLvHGYymr9DcQ1q5YKZPFUw 34ew4O33R/aMiQPgY9okOvde7JaqNBnCothH4Qn87/kYjw/QP7DzCegU+GcuCwYJW37NvGpiagi1k vGmAw1aqx3g20BbxNMHcUTVgrnmZxKbb8o6NijjSeteOjZTMf+NNrrXajDinOMHvbA99LFa+MRfTf GSt5dveaGj7OzCtk5ER62qGHx34tOI7kzs+Pay2HR5W14c2RUXGGRgGd7aZ+gaGQPugNGhY3Yb2ok 2HMjMuvw==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1nX49B-00EIQA-A9; Wed, 23 Mar 2022 16:47:45 +0000 Date: Wed, 23 Mar 2022 09:47:45 -0700 From: Christoph Hellwig To: Xiaoguang Wang Cc: linux-mm@kvack.org, target-devel@vger.kernel.org, linux-scsi@vger.kernel.org, linux-block@vger.kernel.org, xuyu@linux.alibaba.com, bostroesser@gmail.com Subject: Re: [RFC 2/3] mm: export zap_page_range() Message-ID: References: <20220318095531.15479-1-xiaoguang.wang@linux.alibaba.com> <20220318095531.15479-3-xiaoguang.wang@linux.alibaba.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220318095531.15479-3-xiaoguang.wang@linux.alibaba.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: e7kmzizyfpermd4xze9tqkgsfw3jyoky Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=hv6bkUf5; dmarc=none; spf=none (imf20.hostedemail.com: domain of BATV+e62b50da79483f2da7a7+6786+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+e62b50da79483f2da7a7+6786+infradead.org+hch@bombadil.srs.infradead.org X-Rspamd-Queue-Id: 52CA51C0041 X-HE-Tag: 1648054066-977977 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000050, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Mar 18, 2022 at 05:55:30PM +0800, Xiaoguang Wang wrote: > Module target_core_user will use it to implement zero copy feature. NAK, this has no business being exported to modules.