From patchwork Fri Sep 11 10:34:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 11770317 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 3171E698 for ; Fri, 11 Sep 2020 10:37:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 14D6B208FE for ; Fri, 11 Sep 2020 10:37:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="WCJjup/g" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725982AbgIKKg6 (ORCPT ); Fri, 11 Sep 2020 06:36:58 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:52047 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725931AbgIKKgM (ORCPT ); Fri, 11 Sep 2020 06:36:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1599820570; 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=YsfsAQ2XAkLrSeK5gDaCbmO+kEOKaYFgY1Wng1dGBy0=; b=WCJjup/g4XMJhYHmlOHSzrGCsNzg7sqnGfw2C6J++ic7gJE2MG/90ElFxSHL6J+75ziRiu vCjCgrWduwUOal7oIiHfXXliBOu0c6Ovc3Apx7r4ibWp3NyS3VU/GuxEejB4UWgBOBpIQu ICk0gEuey9sSDGx93CwgESfhJCHN9gE= 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-583-vEEKprzxPqCtphnzsAQlyw-1; Fri, 11 Sep 2020 06:36:07 -0400 X-MC-Unique: vEEKprzxPqCtphnzsAQlyw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 98CBD6408E; Fri, 11 Sep 2020 10:36:04 +0000 (UTC) Received: from t480s.redhat.com (ovpn-113-186.ams2.redhat.com [10.36.113.186]) by smtp.corp.redhat.com (Postfix) with ESMTP id 444B481C46; Fri, 11 Sep 2020 10:36:01 +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 , Wei Liu , Michal Hocko , "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Pankaj Gupta , Baoquan He , Wei Yang Subject: [PATCH v4 8/8] hv_balloon: try to merge system ram resources Date: Fri, 11 Sep 2020 12:34:59 +0200 Message-Id: <20200911103459.10306-9-david@redhat.com> In-Reply-To: <20200911103459.10306-1-david@redhat.com> References: <20200911103459.10306-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org 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. Reviewed-by: Wei Liu 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 --- 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 3c0d52e244520..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), MHP_NONE); + (HA_CHUNK << PAGE_SHIFT), MEMHP_MERGE_RESOURCE); if (ret) { pr_err("hot_add memory failed error is %d\n", ret);