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=-6.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=no 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 83027C433DF for ; Tue, 28 Jul 2020 10:47:08 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E8C3D20775 for ; Tue, 28 Jul 2020 10:47:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="rFUcMCUj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E8C3D20775 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4BGCzY5wTKzDr32 for ; Tue, 28 Jul 2020 20:47:05 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=2a00:1450:4864:20::542; helo=mail-ed1-x542.google.com; envelope-from=mingo.kernel.org@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=rFUcMCUj; dkim-atps=neutral Received: from mail-ed1-x542.google.com (mail-ed1-x542.google.com [IPv6:2a00:1450:4864:20::542]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4BGCwz0RHyzDqFs for ; Tue, 28 Jul 2020 20:44:50 +1000 (AEST) Received: by mail-ed1-x542.google.com with SMTP id v22so3662151edy.0 for ; Tue, 28 Jul 2020 03:44:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=3Jtd/NLDfEi5mS55S0K4WbnSIzqpGJbZScZKeEtsXAQ=; b=rFUcMCUj2AwdC69csGGjJVjr3K/8WS4HC4QuFwZtg451Qj4L37BpO16QBPnCSOnEqP 0XLFh6CAcMNi+86g1xCyy/bqdVTYRHcM+S9kEIZb7EWJKKOmGB7fGMyBy9goHLKaJvij l3J//FegCgxfC20hSO+SeOOi0ojcNdANd874jllkW9bgWXdBSGjDZ+KKsJ5ItnWu5ElM TutsV7Y/UWKyR2rEXX1BEUlxaWMHKF0PMaSsOZWNK/0D0ZH9xxW9nIbDP8AygACtKk6q SuVbplxJKZehbky/ztC2U7bihOneNjqjj52Fn1yyk39lDMDQeAEZqoI3viUUxFXSv5vl 9XJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to; bh=3Jtd/NLDfEi5mS55S0K4WbnSIzqpGJbZScZKeEtsXAQ=; b=CQsm+0WOSqkkGr8cxjC5D2QzFswawfTT9vEb9619gUJsWkDvDJQsPUSBIwel9x51Nz DneVBOya3aszyqT/4O49okwm2E9+XZGfc5CcoTwexLyoBI4yHtXLwmo3WcjThYLJLCOk VCGnQNGIn5Gs/Z4T5XpeS+REXP0gk380USmoAfUMg4cvV3B1BfszbzAx4qfmR8+JSfgC aHuGYUZ3eVJQHVpPE6dElp4+Nwr9c26Bybxhf3pOjsS6QQrCzF+7jI2AALnjo8PUdZNK mutVdUknnLEHVcB58O4tu9biBMDm0f/74riBkABYGxjCnbeDEEe0w8wNLvoq5rf2Cwfv zfSw== X-Gm-Message-State: AOAM533mJj/ISeSnKaOllNNUpWfBtMlwh6KuCE3jhCC1imDK2CtOaCeP ylAStMn+/FnvxgPvRXXiycs= X-Google-Smtp-Source: ABdhPJztizS2/FT37W5GVOnd6egL7RbIXP7ubjCB3LMqpraJ3F9fNNOV7TQhtwANWplTQvf13TbOQg== X-Received: by 2002:aa7:dd15:: with SMTP id i21mr12013673edv.153.1595933084517; Tue, 28 Jul 2020 03:44:44 -0700 (PDT) Received: from gmail.com (54033286.catv.pool.telekom.hu. [84.3.50.134]) by smtp.gmail.com with ESMTPSA id cf10sm460841ejb.4.2020.07.28.03.44.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Jul 2020 03:44:43 -0700 (PDT) Date: Tue, 28 Jul 2020 12:44:40 +0200 From: Ingo Molnar To: Mike Rapoport Subject: Re: [PATCH 14/15] x86/numa: remove redundant iteration over memblock.reserved Message-ID: <20200728104440.GA222284@gmail.com> References: <20200728051153.1590-1-rppt@kernel.org> <20200728051153.1590-15-rppt@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200728051153.1590-15-rppt@kernel.org> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-sh@vger.kernel.org, Peter Zijlstra , Dave Hansen , linux-mips@vger.kernel.org, Max Filippov , Paul Mackerras , sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, Will Deacon , Stafford Horne , Marek Szyprowski , linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org, Yoshinori Sato , x86@kernel.org, Russell King , Mike Rapoport , clang-built-linux@googlegroups.com, Ingo Molnar , Catalin Marinas , uclinux-h8-devel@lists.sourceforge.jp, linux-xtensa@linux-xtensa.org, openrisc@lists.librecores.org, Borislav Petkov , Andy Lutomirski , Paul Walmsley , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Michal Simek , linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Palmer Dabbelt , Andrew Morton , Christoph Hellwig Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" * Mike Rapoport wrote: > From: Mike Rapoport > > numa_clear_kernel_node_hotplug() function first traverses numa_meminfo > regions to set node ID in memblock.reserved and than traverses > memblock.reserved to update reserved_nodemask to include node IDs that were > set in the first loop. > > Remove redundant traversal over memblock.reserved and update > reserved_nodemask while iterating over numa_meminfo. > > Signed-off-by: Mike Rapoport > --- > arch/x86/mm/numa.c | 26 ++++++++++---------------- > 1 file changed, 10 insertions(+), 16 deletions(-) I suspect you'd like to carry this in the -mm tree? Acked-by: Ingo Molnar Thanks, Ingo