From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de ([195.135.220.15]:49176 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725772AbgIIFTC (ORCPT ); Wed, 9 Sep 2020 01:19:02 -0400 Subject: Re: [PATCH v2 6/7] xen/balloon: try to merge system ram resources References: <20200908201012.44168-1-david@redhat.com> <20200908201012.44168-7-david@redhat.com> From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Message-ID: <64d7a2ce-e3b5-3525-d977-76a4bb06e52d@suse.com> Date: Wed, 9 Sep 2020 07:18:59 +0200 MIME-Version: 1.0 In-Reply-To: <20200908201012.44168-7-david@redhat.com> Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-s390-owner@vger.kernel.org List-ID: To: David Hildenbrand , 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 , Michal Hocko , Boris Ostrovsky , Stefano Stabellini , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= , Julien Grall , Pankaj Gupta , Baoquan He , Wei Yang On 08.09.20 22:10, David Hildenbrand wrote: > 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 Juergen > --- > 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); > >