From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-f177.google.com (mail-ob0-f177.google.com [209.85.214.177]) by kanga.kvack.org (Postfix) with ESMTP id 5E9466B0253 for ; Mon, 27 Jul 2015 15:37:50 -0400 (EDT) Received: by obdeg2 with SMTP id eg2so67666454obd.0 for ; Mon, 27 Jul 2015 12:37:50 -0700 (PDT) Received: from userp1040.oracle.com (userp1040.oracle.com. [156.151.31.81]) by mx.google.com with ESMTPS id xj4si14343757oeb.73.2015.07.27.12.37.49 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 27 Jul 2015 12:37:49 -0700 (PDT) Date: Mon, 27 Jul 2015 21:37:34 +0200 From: Daniel Kiper Subject: Re: [PATCHv2 00/10] mm, xen/balloon: memory hotplug improvements Message-ID: <20150727193734.GA3492@olila.local.net-space.pl> References: <1437738468-24110-1-git-send-email-david.vrabel@citrix.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1437738468-24110-1-git-send-email-david.vrabel@citrix.com> Sender: owner-linux-mm@kvack.org List-ID: To: David Vrabel Cc: xen-devel@lists.xenproject.org, Konrad Rzeszutek Wilk , Boris Ostrovsky , linux-kernel@vger.kernel.org, linux-mm@kvack.org On Fri, Jul 24, 2015 at 12:47:38PM +0100, David Vrabel wrote: > The series improves the use of hotplug memory in the Xen balloon > driver. > > - Reliably find a non-conflicting location for the hotplugged memory > (this fixes memory hotplug in a number of cases, particularly in > dom0). > > - Use hotplugged memory for alloc_xenballooned_pages() (keeping more > memory available for the domain and reducing fragmentation of the > p2m). > > Changes in v2: > - New BP_WAIT state to signal the balloon process to wait for > userspace to online the new memory. > - Preallocate P2M entries in alloc_xenballooned_pages() so they do not > need allocated later (in a context where GFP_KERNEL allocations are > not possible). Thanks! I will take a look at it this week. Daniel -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org