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,URIBL_BLOCKED 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 C2613C1B08C for ; Thu, 15 Jul 2021 00:19:30 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 61036611AD for ; Thu, 15 Jul 2021 00:19:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 61036611AD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id AD9B68D0009; Wed, 14 Jul 2021 20:19:30 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id AB05A6B00D3; Wed, 14 Jul 2021 20:19:30 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 951E48D0009; Wed, 14 Jul 2021 20:19:30 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0107.hostedemail.com [216.40.44.107]) by kanga.kvack.org (Postfix) with ESMTP id 722336B00D1 for ; Wed, 14 Jul 2021 20:19:30 -0400 (EDT) Received: from smtpin07.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 6770A22C01 for ; Thu, 15 Jul 2021 00:19:29 +0000 (UTC) X-FDA: 78362913258.07.991D227 Received: from mail-pg1-f181.google.com (mail-pg1-f181.google.com [209.85.215.181]) by imf21.hostedemail.com (Postfix) with ESMTP id 1B0AFD006E00 for ; Thu, 15 Jul 2021 00:19:28 +0000 (UTC) Received: by mail-pg1-f181.google.com with SMTP id t9so4243642pgn.4 for ; Wed, 14 Jul 2021 17:19:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=xptbCn3ZR6g3HHgjV/Xny4YP8XtafdWsr2mlA0mT64U=; b=pZ57OUfv/A3XPbSrq8TjPCfFK38KeIBp1cKqaCSFN7yDgtXstzslwp1/cg/MWnHAEN rvjpTla6Pmpq+QRIYprdqlOiFG+xlEpnftL5MubgNlUfRXI/50E22pRThISLKzQGRm91 T426iHag7KVqecSn8VNEwbN+5H/YssX5MBL3Lf4IOMmgmarVnbvUs5tDpeDxOvutdR/2 4FtpgUIAtm8XwgdS+VjlbErD6HSB3EBM1TxTVba/7RdwqO/s60/OwiwcJ3DT1FrJLgo/ p5gBF+iuRXGZFPtm6NkAULS/PPMWaoMovxzzinqrf0SdnpMx+VQdMsRihIB7dDSamVvh 7b6A== 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=xptbCn3ZR6g3HHgjV/Xny4YP8XtafdWsr2mlA0mT64U=; b=fjc1/EkO6KJtKlRs5EhQyjvYeNfN+h4FMj7x7aoAFsLAOLu8geCuSLD6JluiFpW1XJ 4bJZ9WCABk39h59T/Fw5CR4BfD8nwo9tfRw/pPTmho9AM43UjlpAKRljZpAUVXHeTpIU Of+jNn4QK/pCu4mucwZkVJP/nPCylcqgko7e8OXmDOAaHAiq+ebuvlHA1Rk1ePhyb2E4 sItxXabspIJunBCVxUU6g5P+ZX8uiwyFM59s0qMDEyOgv/lvPhVrw92LGZpdGQjQMVRF +1hi+ahUL/cvJnGPpmiuLP8GQWTSKPw1OEnVz6WOO0XUPdyjYo+514AuTGic6y7usLVq 18hA== X-Gm-Message-State: AOAM530fSlbUGH9+ySYL38r/oechUL4UfCCDhP4UvvL75M52fnhIZOCg 6w/gDenbfyOkEwelvvDksyn4cDqwE2h6b72QBugemA== X-Google-Smtp-Source: ABdhPJzr3Gu4NfSezOIp9S9hnR9ZfNwv/i1ULAds8y94a5pFZ/UrtXrOB6tXMxlT/ruiiWH0tAJd3Csnh7XSYP4bKvU= X-Received: by 2002:a05:6a00:d53:b029:32a:2db6:1be3 with SMTP id n19-20020a056a000d53b029032a2db61be3mr620397pfv.71.1626308367997; Wed, 14 Jul 2021 17:19:27 -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: Dan Williams Date: Wed, 14 Jul 2021 17:19:17 -0700 Message-ID: Subject: Re: [PATCH v3 02/14] mm/page_alloc: split prep_compound_page into head and tail subparts To: Joao Martins Cc: Linux MM , Vishal Verma , Dave Jiang , Naoya Horiguchi , Matthew Wilcox , Jason Gunthorpe , John Hubbard , Jane Chu , Muchun Song , Mike Kravetz , Andrew Morton , Jonathan Corbet , Linux NVDIMM , Linux Doc Mailing List Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 1B0AFD006E00 X-Stat-Signature: 6qn5jycg76qsa9qhx5etcxcz8kajsj3y Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=intel-com.20150623.gappssmtp.com header.s=20150623 header.b=pZ57OUfv; dmarc=fail reason="No valid SPF, DKIM not aligned (relaxed)" header.from=intel.com (policy=none); spf=none (imf21.hostedemail.com: domain of dan.j.williams@intel.com has no SPF policy when checking 209.85.215.181) smtp.mailfrom=dan.j.williams@intel.com X-HE-Tag: 1626308368-48624 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 Wed, Jul 14, 2021 at 12:36 PM 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 Looks good, Reviewed-by: Dan Williams