From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yk0-f169.google.com (mail-yk0-f169.google.com [209.85.160.169]) by kanga.kvack.org (Postfix) with ESMTP id 71FBE6B0255 for ; Thu, 30 Jul 2015 13:04:18 -0400 (EDT) Received: by ykdu72 with SMTP id u72so39075294ykd.2 for ; Thu, 30 Jul 2015 10:04:18 -0700 (PDT) Received: from SMTP02.CITRIX.COM (smtp02.citrix.com. [66.165.176.63]) by mx.google.com with ESMTPS id t123si1305303ywe.6.2015.07.30.10.04.15 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 30 Jul 2015 10:04:16 -0700 (PDT) From: David Vrabel Subject: [PATCHv3 00/10] mm, xen/balloon: memory hotplug improvements Date: Thu, 30 Jul 2015 18:03:02 +0100 Message-ID: <1438275792-5726-1-git-send-email-david.vrabel@citrix.com> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org Cc: David Vrabel , linux-mm@kvack.org, Konrad Rzeszutek Wilk , Boris Ostrovsky , Daniel Kiper 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 v3: - xen.balloon.hotplug_unpopulated sysctl to enable using hotplug to provide unpopulated (ballooned) pages. - Fix xen_alloc_p2m_entry() for auto-translated guests. 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). David -- 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