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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0644EE49A6 for ; Mon, 21 Aug 2023 21:22:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230025AbjHUVWY (ORCPT ); Mon, 21 Aug 2023 17:22:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229581AbjHUVWW (ORCPT ); Mon, 21 Aug 2023 17:22:22 -0400 Received: from mail-qt1-x833.google.com (mail-qt1-x833.google.com [IPv6:2607:f8b0:4864:20::833]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 49B4311D for ; Mon, 21 Aug 2023 14:22:21 -0700 (PDT) Received: by mail-qt1-x833.google.com with SMTP id d75a77b69052e-40fd276621aso24845621cf.2 for ; Mon, 21 Aug 2023 14:22:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cmpxchg-org.20221208.gappssmtp.com; s=20221208; t=1692652940; x=1693257740; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=Xce0vmMn1gvMkKEgP8SciOlKPAtITGIb7QGEMytqaF8=; b=Ak4Gn2HWylrO/T/r4SzJshlnVyfDAHGOeNUz9ZhghusisFnCAi7w7cOaAAZZN1xGaF pbIG5wpxUM6hHxgwTyjk2uEmUx9aSY9prGdOm5dAigoJaRdE3VeG6Jyj7zfRNJ1cwtCS g4pIexKwZrtd8JfHwQufnJBhakTEkD8NY8K6LwzfWp+jZCPVf5+RSzqGQ5e+8kSMSMwI 9kDrEBYbz9LmpO0l8UlClqzdy3kZGunS4gXa85rv/g6jkIXc1gBicsBgXew8/+sQQoZg ZQ4lH1utQWz1+DNnm75M/t2dHpbvWir/UudpA09J1oprZmmwgDSxiGHAA2cs7DNpu5c5 ZZiA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692652940; x=1693257740; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Xce0vmMn1gvMkKEgP8SciOlKPAtITGIb7QGEMytqaF8=; b=iLBgNVjceL+w0u236BwSNb8FqSvBHMNvEOYYcZ9WOI+Fm38SfHU7Fq5RQpyuHKHCHp m1vZo+0sYwGChdNo48FOKVHkye/8I92D0Ir9rkVKkm5IvLB9QRpdsbBnTTJk/W/2kf91 Tis1yTOF58MlB3nN7HCig0+Bk+4XNhoDg4xM48ImnXFqeks90H6pjepuiT9q87hE7MCG Ty337YddX3jnlTVw/8RFg5Z2b8OE3HbKwPFQPMCupe5PnixHZNdw9SvSY0v8rcwN2ZiB TSxScwvamFhYlhisxAAGEC7vcdwMVhkcFJo4NeWbGkn5lBXWeJx4Az1+s1hJmGtMUrqs ni0g== X-Gm-Message-State: AOJu0Yw3ILIGy4Vj/b4NNZLzF5EQ0MU7PJUZyWvOKksRyl38+YJdGjzh nXp8l4L1u5hgVK363eUFkH/Ol5+o7SM6Az4wSzLT1g== X-Google-Smtp-Source: AGHT+IHBAB4GS08K6S/HYAbBsfqGccIZK0IyQOFY1AeNje6eraFnI5xfEwxkuq0fB5uCSRGT26pKFg== X-Received: by 2002:ac8:5e4f:0:b0:410:8bcc:fbac with SMTP id i15-20020ac85e4f000000b004108bccfbacmr10068053qtx.7.1692652940437; Mon, 21 Aug 2023 14:22:20 -0700 (PDT) Received: from localhost (2603-7000-0c01-2716-699c-6fe1-d2a8-6a30.res6.spectrum.com. [2603:7000:c01:2716:699c:6fe1:d2a8:6a30]) by smtp.gmail.com with ESMTPSA id h20-20020a05622a171400b00410957eaf3csm1101726qtk.21.2023.08.21.14.22.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Aug 2023 14:22:20 -0700 (PDT) Date: Mon, 21 Aug 2023 17:22:19 -0400 From: Johannes Weiner To: Zi Yan Cc: Andrew Morton , Vlastimil Babka , Mel Gorman , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/8] mm: page_alloc: use get_pfnblock_migratetype where pfn available Message-ID: <20230821212219.GC106501@cmpxchg.org> References: <20230821183733.106619-1-hannes@cmpxchg.org> <20230821183733.106619-2-hannes@cmpxchg.org> <4DE7DCEA-796E-463A-8EF1-FB441BAEDD96@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4DE7DCEA-796E-463A-8EF1-FB441BAEDD96@nvidia.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 21, 2023 at 04:29:36PM -0400, Zi Yan wrote: > On 21 Aug 2023, at 14:33, Johannes Weiner wrote: > > > Save a pfn_to_page() lookup when the pfn is right there already. > > > > Signed-off-by: Johannes Weiner > > --- > > mm/page_alloc.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > Just notice that it is already done in: > https://lkml.kernel.org/r/20230811115945.3423894-3-shikemeng@huaweicloud.com Even better :) I'll rebase on top of this.