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=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 8AC12C43603 for ; Tue, 10 Dec 2019 15:46:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6179120836 for ; Tue, 10 Dec 2019 15:46:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cjuMjt4e" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727320AbfLJPqf (ORCPT ); Tue, 10 Dec 2019 10:46:35 -0500 Received: from mail-pl1-f195.google.com ([209.85.214.195]:37726 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727178AbfLJPqf (ORCPT ); Tue, 10 Dec 2019 10:46:35 -0500 Received: by mail-pl1-f195.google.com with SMTP id c23so38009plz.4; Tue, 10 Dec 2019 07:46:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=CZlrbcP0R+6P+fN+m63h/3S5RDdyDRFNSXhYFi//Vj0=; b=cjuMjt4euAnrX3p2nGOu85BL/zhPkgkPTkUECiMejrpa4dHCbZj0+nWNdEb3BATVy7 rutEc6OHzaR89xAl+Pag+h3tnK+PUjCmrek7tLL8+RDhe3XPN+Cne3RJH/BBmkejydT8 QUG5OAeMSRfR2v9Qfn6vcubbVzgZinKGmKpZn8wg9SHA0ewVX2os8J1DE+h0/g3jMFvp hcGCzUzJGR6lNBdZvrWVW5Yj/uwlLemkResl8ObtFEbJ2zZbGaLCL5F6Wu0r7c6x0AgA l0Wy0Ct8TMVkavZkfcidkxpRQqqk1Z9p9otgffOH0mMFLM/JHuACNkbXiMQbR8zoHVvN XEaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=CZlrbcP0R+6P+fN+m63h/3S5RDdyDRFNSXhYFi//Vj0=; b=dO7ZBCHkMqpQwccvNSc2/8injEXrRrQ5bBBive+4jhFRCNQk5d9GFPWUAUAIWhPiOb rQgLKNNvKx/rlt/UyT3ePpP2jdTjwT6L0s85/UkMiz+HrPxu4jUasmfOu8uGGgybbdu8 i7XwQV10cL2Nh9pggUGv5rJQYxXpt7ITatczde9iP+vlfB0QRxd7xon1ZxBSGR20dzPM 61/zKnQSg2FrDgOtGgXeRxPt7gF/jTQpx71kxaQbtKOxJ5buLbpaVZLUHRFUvlkxU3HQ euRqXdO7SCAg+JVTBKEb4ct3TzzZrV0db2zvSWWLlIa1TRh//dL0TuIpSsA6LoQRgPW6 LBIA== X-Gm-Message-State: APjAAAWBkeM3UAuX2wZBuuFvoVu/cOJTpdRdcY93WJ+XCso8f/vTiZig RPKfG1UCZINlw0G0wRNpgV4= X-Google-Smtp-Source: APXvYqwgKgXxjEp6ccHDndsVKuAZNMI3KJXsJrXJ3HHikiQT2SB4OHh6ipUxPWQF61rM8d0kv7jiOA== X-Received: by 2002:a17:902:8306:: with SMTP id bd6mr36661149plb.303.1575992794302; Tue, 10 Dec 2019 07:46:34 -0800 (PST) Received: from localhost.corp.microsoft.com ([167.220.255.5]) by smtp.googlemail.com with ESMTPSA id k13sm4113815pfp.48.2019.12.10.07.46.30 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 10 Dec 2019 07:46:33 -0800 (PST) From: lantianyu1986@gmail.com X-Google-Original-From: Tianyu.Lan@microsoft.com To: kys@microsoft.com, haiyangz@microsoft.com, sthemmin@microsoft.com, sashal@kernel.org, akpm@linux-foundation.org, michael.h.kelley@microsoft.com Cc: Tianyu Lan , linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, vkuznets@redhat.com, eric.devolder@oracle.com Subject: [RFC PATCH 2/4] mm/hotplug: Expose is_mem_section_removable() and offline_pages() Date: Tue, 10 Dec 2019 23:46:09 +0800 Message-Id: <20191210154611.10958-3-Tianyu.Lan@microsoft.com> X-Mailer: git-send-email 2.14.5 In-Reply-To: <20191210154611.10958-1-Tianyu.Lan@microsoft.com> References: <20191210154611.10958-1-Tianyu.Lan@microsoft.com> Sender: linux-hyperv-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@vger.kernel.org From: Tianyu Lan Hyper-V driver adds memory hot remove function and will use these interfaces in Hyper-V balloon driver which may be built as a module. Expose these function. Signed-off-by: Tianyu Lan --- mm/memory_hotplug.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 07e5c67f48a8..4b358ebcc3d7 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1191,6 +1191,7 @@ bool is_mem_section_removable(unsigned long start_pfn, unsigned long nr_pages) /* All pageblocks in the memory block are likely to be hot-removable */ return true; } +EXPORT_SYMBOL_GPL(is_mem_section_removable); /* * Confirm all pages in a range [start, end) belong to the same zone. @@ -1612,6 +1613,7 @@ int offline_pages(unsigned long start_pfn, unsigned long nr_pages) { return __offline_pages(start_pfn, start_pfn + nr_pages); } +EXPORT_SYMBOL_GPL(offline_pages); static int check_memblock_offlined_cb(struct memory_block *mem, void *arg) { -- 2.14.5