From patchwork Wed Mar 31 18:47:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 12175943 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 2ED91C43460 for ; Wed, 31 Mar 2021 18:49:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0CE6861007 for ; Wed, 31 Mar 2021 18:49:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235264AbhCaSsn (ORCPT ); Wed, 31 Mar 2021 14:48:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235225AbhCaSsP (ORCPT ); Wed, 31 Mar 2021 14:48:15 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 66080C061574; Wed, 31 Mar 2021 11:48:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=FyrpBJWj25ijLPQvz5Bf0+SLReGmXxIsewezEd/5bAA=; b=SXa1uRTBasOjaK9myGKyGWvD4S dgGAJfn11UDDp/sW/2kX3BxQOPM7dyVWtIPIdTyNDRqdpoKkbO96M7tvulj0jfyvkw3WkVE9n3jOo bdEEb7Jdxkq3pOk5n5XswwO07tQxrluzHMqt0FW42oNKcQ/Fb0PrAJ4gYOfIsHsbqFGE7myBMa+OI nT+OSehpnwzx0YIG9yJkYXaKoQ4pQVvfIW8ITynjMgeyWuYojbWycmb5a/kFVsDeWIxWqTEQyAI/0 Ye3oOhTJbPtD7xn5XAKG5PZNavq9jsZlUpKRA9r2CH66KIeMGp98CU5UJakTznxgnKI4qa/fyOmVh jg1A3XWA==; Received: from willy by casper.infradead.org with local (Exim 4.94 #2 (Red Hat Linux)) id 1lRfsV-004z5w-PK; Wed, 31 Mar 2021 18:47:45 +0000 From: "Matthew Wilcox (Oracle)" To: linux-mm@kvack.org Cc: "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-cachefs@redhat.com, linux-afs@lists.infradead.org, Zi Yan Subject: [PATCH v6 02/27] mm: Add folio_pgdat and folio_zone Date: Wed, 31 Mar 2021 19:47:03 +0100 Message-Id: <20210331184728.1188084-3-willy@infradead.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210331184728.1188084-1-willy@infradead.org> References: <20210331184728.1188084-1-willy@infradead.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org 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 --- include/linux/mm.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 761063e733bf..195c4740522d 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1546,6 +1546,16 @@ 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) {