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 X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4C07C4743C for ; Wed, 23 Jun 2021 07:51:24 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 660B16128D for ; Wed, 23 Jun 2021 07:51:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 660B16128D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 559608D0005; Wed, 23 Jun 2021 03:51:23 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 509718D0002; Wed, 23 Jun 2021 03:51:23 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3D14A8D0005; Wed, 23 Jun 2021 03:51:23 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0217.hostedemail.com [216.40.44.217]) by kanga.kvack.org (Postfix) with ESMTP id F3FA78D0002 for ; Wed, 23 Jun 2021 03:51:22 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 382CD20BDA for ; Wed, 23 Jun 2021 07:51:23 +0000 (UTC) X-FDA: 78284218446.13.0719FD2 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf28.hostedemail.com (Postfix) with ESMTP id DA94920015C5 for ; Wed, 23 Jun 2021 07:51:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; 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=kHCdvgaykiK2wb98YNK1uUUlwxt692indgWbyHeYWFs=; b=YmeKFIJ/DCFbT1KbHftaoz2wfd 361D88y490vqN+ar2ZXz3oqNmMVNk4XmLq1ilNk3y4P2MI4YmfONbdWpb7AaG2N83mGrJjQ2DaTTy CFEHYnTJROtBI+arGH1bnT6jgjjbDEz08xH85Ju44gkFbJRT0h4qpttZThaEru0JFhiRMFmsdrEy9 SHOgXYJbttO/0Ojw6PQOBcOTMonIRbNRfNWHuPDWI//AIZciTs97eFVHSeSP8fw1oNREAEtbB6u9O 5eaZMmWXrKbzS6qnqYzvs8QCtfYaBq9NMrmuF7IL+5RK2JAGgefznWZdWrCRXtOASVyyzqwlZlew+ hH0bOkrQ==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1lvxdz-00FB1g-Dk; Wed, 23 Jun 2021 07:50:05 +0000 Date: Wed, 23 Jun 2021 08:49:55 +0100 From: Christoph Hellwig To: "Matthew Wilcox (Oracle)" Cc: akpm@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 01/46] mm: Add folio_to_pfn() Message-ID: References: <20210622121551.3398730-1-willy@infradead.org> <20210622121551.3398730-2-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210622121551.3398730-2-willy@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b="YmeKFIJ/"; spf=none (imf28.hostedemail.com: domain of BATV@casper.srs.infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=BATV@casper.srs.infradead.org; dmarc=none X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: DA94920015C5 X-Stat-Signature: h1je3noittuyhciijpm6xmhh6ao1qnho X-HE-Tag: 1624434681-261281 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 Tue, Jun 22, 2021 at 01:15:06PM +0100, Matthew Wilcox (Oracle) wrote: > The pfn of a folio is the pfn of its head page. > > Signed-off-by: Matthew Wilcox (Oracle) Maybe add a kerneldoc comment stating that?