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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4BF3C433EF for ; Tue, 22 Mar 2022 23:58:07 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0350F6B0072; Tue, 22 Mar 2022 19:58:07 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id F26B76B0073; Tue, 22 Mar 2022 19:58:06 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DC7926B0074; Tue, 22 Mar 2022 19:58:06 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0208.hostedemail.com [216.40.44.208]) by kanga.kvack.org (Postfix) with ESMTP id CD0F16B0072 for ; Tue, 22 Mar 2022 19:58:06 -0400 (EDT) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 721C81828AE48 for ; Tue, 22 Mar 2022 23:58:06 +0000 (UTC) X-FDA: 79273688172.21.3AA0CF3 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by imf05.hostedemail.com (Postfix) with ESMTP id 2983E10002E for ; Tue, 22 Mar 2022 23:58:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1647993485; x=1679529485; h=from:to:cc:subject:references:date:in-reply-to: message-id:mime-version; bh=/GxhdKQcRNqZKx1OxrK2UpO2g0Q4Le5EpadCPUv1Y3U=; b=Ny7DRHDuzWAyp4kJMW2D3BbiPZnzncyaSXm5JMe4TG6uNtxu4GnBopVv +lW8QdQM8eBClq6yGWEc0l8DhxhSKbVt+eELoFLs3wmYJsx1us3kGJeuO myicl0jAmHg4zJzgGQSfChc2fbtlpcon6PaKMCcQ1EB9LTXWIG9i+DC6/ p+FR7S58Ze9Ka0XgNm/viNuT6yvBUJB/YnhgLIUQxNh7cw5iFKhga6czd ZJhCkIt70kIdX8OT7wi/PxMXgh0um01xJ59ecJEXGlrO/sD+iRyd4+2SW HbLx6USgBGi2sbcS6NULg+0m/ogjPN6GyHHrME7Hz1+pXyJa5IkndNB8y g==; X-IronPort-AV: E=McAfee;i="6200,9189,10294"; a="282824401" X-IronPort-AV: E=Sophos;i="5.90,203,1643702400"; d="scan'208";a="282824401" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Mar 2022 16:57:22 -0700 X-IronPort-AV: E=Sophos;i="5.90,203,1643702400"; d="scan'208";a="649222711" Received: from yhuang6-desk2.sh.intel.com (HELO yhuang6-desk2.ccr.corp.intel.com) ([10.239.13.94]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Mar 2022 16:57:20 -0700 From: "Huang, Ying" To: Oscar Salvador Cc: Andrew Morton , Dave Hansen , Abhishek Goel , Baolin Wang , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] mm: Untangle config dependencies for demote-on-reclaim References: <20220322224016.4574-1-osalvador@suse.de> Date: Wed, 23 Mar 2022 07:57:17 +0800 In-Reply-To: <20220322224016.4574-1-osalvador@suse.de> (Oscar Salvador's message of "Tue, 22 Mar 2022 23:40:16 +0100") Message-ID: <87ils535ia.fsf@yhuang6-desk2.ccr.corp.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=ascii X-Stat-Signature: 4fdbh1g79omys8dnhquy4d6iy4izfda9 Authentication-Results: imf05.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=Ny7DRHDu; spf=none (imf05.hostedemail.com: domain of ying.huang@intel.com has no SPF policy when checking 192.55.52.88) smtp.mailfrom=ying.huang@intel.com; dmarc=pass (policy=none) header.from=intel.com X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 2983E10002E X-HE-Tag: 1647993484-116773 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: Oscar Salvador writes: > At the time demote-on-reclaim was introduced, it was tied to > CONFIG_HOTPLUG_CPU + CONFIG_MIGRATE, but that is not really > accurate. > > The only two things we need to depen on is CONFIG_NUMA + > CONFIG_MIGRATE, so clean this up. > Furthermore, we only register the hotplug memory notifier > when the system has CONFIG_MEMORY_HOTPLUG. > > Signed-off-by: Oscar Salvador > Suggested-by: "Huang, Ying" LGTM! Thanks! Reviewed-by: "Huang, Ying" Best Regards, Huang, Ying