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=-15.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 6FD06C433B4 for ; Fri, 14 May 2021 10:35:10 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 34908613F2 for ; Fri, 14 May 2021 10:35:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 34908613F2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C9B506B006E; Fri, 14 May 2021 06:35:09 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C713D6B0070; Fri, 14 May 2021 06:35:09 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B60A26B0071; Fri, 14 May 2021 06:35:09 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0169.hostedemail.com [216.40.44.169]) by kanga.kvack.org (Postfix) with ESMTP id 87B566B006E for ; Fri, 14 May 2021 06:35:09 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 2FFE5181B8AF2 for ; Fri, 14 May 2021 10:35:09 +0000 (UTC) X-FDA: 78139479138.28.25F6FE0 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by imf22.hostedemail.com (Postfix) with ESMTP id 298DAC0007E3 for ; Fri, 14 May 2021 10:35:08 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id B4765AF4E; Fri, 14 May 2021 10:35:07 +0000 (UTC) Subject: Re: [PATCH v10 02/33] mm: Add folio_pgdat and folio_zone To: "Matthew Wilcox (Oracle)" , akpm@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Zi Yan , Christoph Hellwig , Jeff Layton References: <20210511214735.1836149-1-willy@infradead.org> <20210511214735.1836149-3-willy@infradead.org> From: Vlastimil Babka Message-ID: <42582e63-ad03-8ae7-89d3-bbf2725acccd@suse.cz> Date: Fri, 14 May 2021 12:35:07 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <20210511214735.1836149-3-willy@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Authentication-Results: imf22.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf22.hostedemail.com: domain of vbabka@suse.cz designates 195.135.220.15 as permitted sender) smtp.mailfrom=vbabka@suse.cz X-Stat-Signature: wjkhubq6wdu4dy8gu1dg8g5k6tz99z3w X-Rspamd-Queue-Id: 298DAC0007E3 X-Rspamd-Server: rspam02 X-HE-Tag: 1620988508-532172 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 5/11/21 11:47 PM, Matthew Wilcox (Oracle) wrote: > These are just convenience wrappers for callers with folios; pgdat and > zone can be reached from tail pages as well as head pages. > > Signed-off-by: Matthew Wilcox (Oracle) > Reviewed-by: Zi Yan > Reviewed-by: Christoph Hellwig > Acked-by: Jeff Layton Acked-by: Vlastimil Babka > --- > include/linux/mm.h | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index b29c86824e6b..a55c2c0628b6 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -1560,6 +1560,16 @@ static inline pg_data_t *page_pgdat(const struct page *page) > return NODE_DATA(page_to_nid(page)); > } > > +static inline struct zone *folio_zone(const struct folio *folio) > +{ > + return page_zone(&folio->page); > +} > + > +static inline pg_data_t *folio_pgdat(const struct folio *folio) > +{ > + return page_pgdat(&folio->page); > +} > + > #ifdef SECTION_IN_PAGE_FLAGS > static inline void set_page_section(struct page *page, unsigned long section) > { >