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 B20CFC433EF for ; Tue, 4 Jan 2022 08:25:42 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 323876B007E; Tue, 4 Jan 2022 03:25:42 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 283036B0080; Tue, 4 Jan 2022 03:25:42 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 14AEE6B0081; Tue, 4 Jan 2022 03:25:42 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0179.hostedemail.com [216.40.44.179]) by kanga.kvack.org (Postfix) with ESMTP id 0BB876B007E for ; Tue, 4 Jan 2022 03:25:42 -0500 (EST) Received: from smtpin11.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id BF1B718147594 for ; Tue, 4 Jan 2022 08:25:41 +0000 (UTC) X-FDA: 78991920882.11.38203DA Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf20.hostedemail.com (Postfix) with ESMTP id 16BA41C0002 for ; Tue, 4 Jan 2022 08:25:31 +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=g2JlfdScsfSkknZ5n1pSrX7VjwUwhsyeVDW4QCZJYSY=; b=Vg8yK6fTbOac9Ya6VpMyffjj+5 Zx0QzxT640YiA7Ip8Sgf43NmdjHbg30BP3iozGaioAk5rOhtH0OW9xzV1T71ObMkFq3F5OZBDWOvx CK1a/x7IrO6hzZ0JFg8f2iVjyyait0HTtLd3ZqXc32FNkQZ60SkCjsxtunk4Ve5nmbc4ZSbYtr1K6 J4l6Zb8wfiBPq8SRBOidgwpm0dbN5tWQMOWuUOm67HxiWd0uUF4rHhOvv8iIz66lVmEbdQsczkDqI 3M2NM1e+JaEHliPxXT+Sz+TJF9AWSYqDSIC3eemjgyFQ5lwbWlj2WiIIlmDjGjk8xpNf/RiheN7Rc +MLngxyA==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1n4f8W-00AjER-BI; Tue, 04 Jan 2022 08:25:40 +0000 Date: Tue, 4 Jan 2022 00:25:40 -0800 From: Christoph Hellwig To: "Matthew Wilcox (Oracle)" Cc: linux-mm@kvack.org, John Hubbard , Andrew Morton Subject: Re: [PATCH 09/17] gup: Convert gup_pte_range() to use a folio Message-ID: References: <20220102215729.2943705-1-willy@infradead.org> <20220102215729.2943705-10-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220102215729.2943705-10-willy@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 16BA41C0002 X-Stat-Signature: tpj48fmh4uhhdbmr5uywwxc3m3k1w973 Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=Vg8yK6fT; dmarc=none; spf=none (imf20.hostedemail.com: domain of BATV+e6cc8b46eea779d11ede+6708+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+e6cc8b46eea779d11ede+6708+infradead.org+hch@bombadil.srs.infradead.org X-HE-Tag: 1641284731-491349 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Sun, Jan 02, 2022 at 09:57:21PM +0000, Matthew Wilcox (Oracle) wrote: > We still call try_grab_folio() once per PTE; a future patch could > optimise to just adjust the reference count for each page within > the folio. > > Signed-off-by: Matthew Wilcox (Oracle) Looks good: Reviewed-by: Christoph Hellwig