From patchwork Tue Sep 8 20:10:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 11764407 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 F32B9618 for ; Tue, 8 Sep 2020 20:11:34 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (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 C3B5C2080A for ; Tue, 8 Sep 2020 20:11:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="fPo80OPV" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C3B5C2080A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvdimm-bounces@lists.01.org Received: from ml01.vlan13.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id A467113E56138; Tue, 8 Sep 2020 13:11:34 -0700 (PDT) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=207.211.31.120; helo=us-smtp-1.mimecast.com; envelope-from=david@redhat.com; receiver= Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 0EA4413C4BD14 for ; Tue, 8 Sep 2020 13:11:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1599595892; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=8K1xYXTYUbnlqXd2ZY48Xr9MumdD7TqIS7rIjkX/laU=; b=fPo80OPVtsLQyxNSDLTnlNshggz94Ckne2m7T4WB4U9QkRv6yw8TXbkDYydZOlcyR15dee ExEN5TxLHScUavXK5ymgGVWGhjsPLvRWmfKNyW6ZHtFpxk76iJ3GOYVwm1hNB8V73h6uMo pV1HkOT9CpYBOVbE+R0YXGa/VMZXgkE= 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-401-Y-wM1DyKPe22UQB0ydanhg-1; Tue, 08 Sep 2020 16:11:28 -0400 X-MC-Unique: Y-wM1DyKPe22UQB0ydanhg-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 CA4DC85C734; Tue, 8 Sep 2020 20:11:25 +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 942655D9E8; Tue, 8 Sep 2020 20:11:16 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Subject: [PATCH v2 6/7] xen/balloon: try to merge system ram resources Date: Tue, 8 Sep 2020 22:10:11 +0200 Message-Id: <20200908201012.44168-7-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 Message-ID-Hash: IINQM4O6FGD7OT345A4XO4IPEXJZ2IZX X-Message-ID-Hash: IINQM4O6FGD7OT345A4XO4IPEXJZ2IZX X-MailFrom: david@redhat.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation 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 , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Julien Grall , Pankaj Gupta , Baoquan He X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: 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: Boris Ostrovsky Cc: Juergen Gross Cc: Stefano Stabellini Cc: Roger Pau Monné Cc: Julien Grall Cc: Pankaj Gupta Cc: Baoquan He Cc: Wei Yang Signed-off-by: David Hildenbrand Reviewed-by: Juergen Gross --- drivers/xen/balloon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 7bac38764513d..b57b2067ecbfb 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -331,7 +331,7 @@ static enum bp_state reserve_additional_memory(void) mutex_unlock(&balloon_mutex); /* add_memory_resource() requires the device_hotplug lock */ lock_device_hotplug(); - rc = add_memory_resource(nid, resource, 0); + rc = add_memory_resource(nid, resource, MEMHP_MERGE_RESOURCE); unlock_device_hotplug(); mutex_lock(&balloon_mutex);