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=-8.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 872FCC12002 for ; Thu, 15 Jul 2021 02:54:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5D39761377 for ; Thu, 15 Jul 2021 02:54:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231682AbhGOC5G (ORCPT ); Wed, 14 Jul 2021 22:57:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35064 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230494AbhGOC5G (ORCPT ); Wed, 14 Jul 2021 22:57:06 -0400 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9F979C06175F for ; Wed, 14 Jul 2021 19:54:13 -0700 (PDT) Received: by mail-pf1-x432.google.com with SMTP id m83so3803779pfd.0 for ; Wed, 14 Jul 2021 19:54:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=C90l7UH/YbMRyELxbBHByt2xcdW8Ch3InZoolsX6UZo=; b=tZiKTFH0YsHg3h/aDt2SiBtLUkYsFlXO5g3gj2mAXaX2Je6Y0a7i805bqoPsZKZmVj XjvsA5vskZULMgND6WSPz2I3ucfEr8Zh1G1lFSoPab6CJjv+0ZDrdSggEj0GD9qjfjT4 KZ97dHwETzNhEwbJZORnXbDgoEhQvi55go1o2ZGdkPy1peepsJY+4GBgaQK8bQ3cXwBv anG224BiSL3DG7FYGz/s87MRHFBn80aMR+Mmft10qtFMxUNmX0Q4fT3nS619dhEWSu2b n+y2wKRxMmIkmwrxuS4dxs/s4K3463XqnENG6TnxT1dKH0HuJUPUQLBjYOgO1ucBNLNo MnpA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=C90l7UH/YbMRyELxbBHByt2xcdW8Ch3InZoolsX6UZo=; b=DGShiqT+EDXtK2gWtkoTAaEETvOgQ7CAcMyTp8zJJSRcjIgRIinC77sXBIa67Y3KFm tn+9NJFh4hzNxYxzY7hwj5lPKTzqjz/NhN0y/wO3g6zt1/QzmrBrh7243bHsPfPBWaCC iOLX4r4p3vWFyGaTq4e2sd3CDWQ81yZaIu8l2hTVVY5xhxN2UjScvFV/kAWTZqk5FRWW u5llsHufKwDNY6IiUSlGzMfRXBHMEmjQZOErrS4RBBmkWkTdfHcaRPBgsvodgob9jbOW 4X/PKlizi9EeGO34JXsotB4jK9ouHo48XmawTjmxdJVpb+UitljicnRbp1QmSdb93Mnd 2kKA== X-Gm-Message-State: AOAM5301LE95uzBesAPREbDENF1dFTXDkU44Fu3cBnoxgDIiJ+oFuFu6 INKEzLg1Ham/FiLtF5iXln6D4qLJboDgdNKMiF0RJw== X-Google-Smtp-Source: ABdhPJxHxk0QDwb10wnGqRmVq/VMVZ/VNOfw+9uOUQ7cTgD7H6IqGRmEEH9vEbdDhUQj72sGNuYENyeprDsy/ULlcjc= X-Received: by 2002:a63:5963:: with SMTP id j35mr1598651pgm.341.1626317653069; Wed, 14 Jul 2021 19:54:13 -0700 (PDT) MIME-Version: 1.0 References: <20210714193542.21857-1-joao.m.martins@oracle.com> <20210714193542.21857-3-joao.m.martins@oracle.com> In-Reply-To: <20210714193542.21857-3-joao.m.martins@oracle.com> From: Muchun Song Date: Thu, 15 Jul 2021 10:53:37 +0800 Message-ID: Subject: Re: [External] [PATCH v3 02/14] mm/page_alloc: split prep_compound_page into head and tail subparts To: Joao Martins Cc: Linux Memory Management List , Dan Williams , Vishal Verma , Dave Jiang , Naoya Horiguchi , Matthew Wilcox , Jason Gunthorpe , John Hubbard , Jane Chu , Mike Kravetz , Andrew Morton , Jonathan Corbet , nvdimm@lists.linux.dev, linux-doc@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On Thu, Jul 15, 2021 at 3:36 AM Joao Martins wrote: > > Split the utility function prep_compound_page() into head and tail > counterparts, and use them accordingly. > > This is in preparation for sharing the storage for / deduplicating > compound page metadata. > > Signed-off-by: Joao Martins > Acked-by: Mike Kravetz Reviewed-by: Muchun Song