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=-18.7 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,URIBL_BLOCKED, 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 5DE9CC49EA4 for ; Tue, 22 Jun 2021 12:18:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4B0A4611CE for ; Tue, 22 Jun 2021 12:18:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231481AbhFVMUn (ORCPT ); Tue, 22 Jun 2021 08:20:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43324 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231381AbhFVMUn (ORCPT ); Tue, 22 Jun 2021 08:20:43 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EAC68C061574; Tue, 22 Jun 2021 05:18:27 -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=JDaUOJALMebNh4PadqGaBGITP/KUBgH2yokzmVW+A+Q=; b=HflKthEcpfi4iEAIp8kWdu7tVj /aLeavFL4VgsDHgAZAcACmjs6+Cn0/AxJJITR0CZlP9f7lkBKWiVdLg9nMeoeCuoju2GhTxA//oYv faMfxLbL/5qgFaWJq11KPxSf9YPDEZREpcan+N07u+nV80ySl2IN/L1EFHFW/HJeYnQdhjmqV8GYm OMaHQxf/UD0n1VIFRV8QvENzEp3JRjLZtc7xJdhciGlbDJeCVk6Ub+Z9UX5xMfQ6vBzw6c7ai9/yW gCkHw0nqqXGs8Hs8vGdDLI5tKzmXYIGOVLdpDZQHtPVy8GR4oYILzPCxAKVNIt36fqqEgFXLwFU/X b7b3Ml9g==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1lvfKl-00EGEF-FG; Tue, 22 Jun 2021 12:17:21 +0000 From: "Matthew Wilcox (Oracle)" To: akpm@linux-foundation.org Cc: "Matthew Wilcox (Oracle)" , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 01/46] mm: Add folio_to_pfn() Date: Tue, 22 Jun 2021 13:15:06 +0100 Message-Id: <20210622121551.3398730-2-willy@infradead.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210622121551.3398730-1-willy@infradead.org> References: <20210622121551.3398730-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org The pfn of a folio is the pfn of its head page. Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/mm.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 9b7030d1899f..2c7b6ae1d3fc 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1619,6 +1619,11 @@ static inline unsigned long page_to_section(const struct page *page) } #endif +static inline unsigned long folio_to_pfn(struct folio *folio) +{ + return page_to_pfn(&folio->page); +} + /* MIGRATE_CMA and ZONE_MOVABLE do not allow pin pages */ #ifdef CONFIG_MIGRATION static inline bool is_pinnable_page(struct page *page) -- 2.30.2