From patchwork Tue Sep 8 20:10:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 11764437 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BC57A138E for ; Tue, 8 Sep 2020 20:13:07 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 8F718208FE for ; Tue, 8 Sep 2020 20:13:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="hUlLPFWK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8F718208FE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kFjxr-0004ux-9z; Tue, 08 Sep 2020 20:11:39 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kFjxq-0004uW-B7 for xen-devel@lists.xenproject.org; Tue, 08 Sep 2020 20:11:38 +0000 X-Inumbo-ID: 7f3d9e84-d2ac-477c-a22a-61f9b4eef2b8 Received: from us-smtp-delivery-1.mimecast.com (unknown [205.139.110.61]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTP id 7f3d9e84-d2ac-477c-a22a-61f9b4eef2b8; Tue, 08 Sep 2020 20:11:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1599595897; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zY1KxFC7EFvzYJR4Wj3X5XMawS5fc09cdTTHbV84zuU=; b=hUlLPFWKf1lyY4/exbOGRanVixoWOaogx4PFzZjHgRdmNsRgq2dbrw8ZoduVmrM79q9fn9 n5+PFzTATsAohg2kFRhsX3e5Jp8URr+7mT4CfoIEdH2CAKIPaFK7kaWmSTnSR3k0sNqrrN JkUhUoQLpG+JmK/+AM6LCaFOCDKo948= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-214-sGVI5rclMmeYN5bEAccY4Q-1; Tue, 08 Sep 2020 16:11:33 -0400 X-MC-Unique: sGVI5rclMmeYN5bEAccY4Q-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 6A1D5801FDF; Tue, 8 Sep 2020 20:11:31 +0000 (UTC) Received: from t480s.redhat.com (ovpn-115-46.ams2.redhat.com [10.36.115.46]) by smtp.corp.redhat.com (Postfix) with ESMTP id 264B05D9E8; Tue, 8 Sep 2020 20:11:25 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: virtualization@lists.linux-foundation.org, linux-mm@kvack.org, linux-hyperv@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-nvdimm@lists.01.org, linux-s390@vger.kernel.org, Andrew Morton , David Hildenbrand , Michal Hocko , "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Wei Liu , Pankaj Gupta , Baoquan He , Wei Yang Subject: [PATCH v2 7/7] hv_balloon: try to merge system ram resources Date: Tue, 8 Sep 2020 22:10:12 +0200 Message-Id: <20200908201012.44168-8-david@redhat.com> In-Reply-To: <20200908201012.44168-1-david@redhat.com> References: <20200908201012.44168-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Let's try to merge system ram resources we add, to minimize the number of resources in /proc/iomem. We don't care about the boundaries of individual chunks we added. Cc: Andrew Morton Cc: Michal Hocko Cc: "K. Y. Srinivasan" Cc: Haiyang Zhang Cc: Stephen Hemminger Cc: Wei Liu Cc: Pankaj Gupta Cc: Baoquan He Cc: Wei Yang Signed-off-by: David Hildenbrand Reviewed-by: Wei Liu --- drivers/hv/hv_balloon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c index 0194bed1a5736..b64d2efbefe71 100644 --- a/drivers/hv/hv_balloon.c +++ b/drivers/hv/hv_balloon.c @@ -726,7 +726,7 @@ static void hv_mem_hot_add(unsigned long start, unsigned long size, nid = memory_add_physaddr_to_nid(PFN_PHYS(start_pfn)); ret = add_memory(nid, PFN_PHYS((start_pfn)), - (HA_CHUNK << PAGE_SHIFT), 0); + (HA_CHUNK << PAGE_SHIFT), MEMHP_MERGE_RESOURCE); if (ret) { pr_err("hot_add memory failed error is %d\n", ret);