Re: [PATCH 1/2][v2] mm: add notifier in pageblock isolation for balloon drivers

2009-10-13 Thread Robert Jennings
On Fri, Oct 09, 2009 at 21:43:26 +0100, Mal Gorman wrote: > As you have tested this recently, would you be willing to post the > results? While it's not a requirement of the patch, it would be nice to have > an idea of how the effectiveness of memory hot-remove is improved when used > with the powe

Re: [PATCH 1/2][v2] mm: add notifier in pageblock isolation for balloon drivers

2009-10-09 Thread Mel Gorman
On Fri, Oct 09, 2009 at 03:23:04PM -0500, Robert Jennings wrote: > * Andrew Morton (a...@linux-foundation.org) wrote: > > On Fri, 2 Oct 2009 13:44:58 -0500 > > Robert Jennings wrote: > > > > > Memory balloon drivers can allocate a large amount of memory which > > > is not movable but could be fre

Re: [PATCH 1/2][v2] mm: add notifier in pageblock isolation for balloon drivers

2009-10-09 Thread Robert Jennings
* Andrew Morton (a...@linux-foundation.org) wrote: > On Fri, 2 Oct 2009 13:44:58 -0500 > Robert Jennings wrote: > > > Memory balloon drivers can allocate a large amount of memory which > > is not movable but could be freed to accomodate memory hotplug remove. > > > > Prior to calling the memory

Re: [PATCH 1/2][v2] mm: add notifier in pageblock isolation for balloon drivers

2009-10-09 Thread Robert Jennings
* Mel Gorman (m...@csn.ul.ie) wrote: > On Fri, Oct 02, 2009 at 01:44:58PM -0500, Robert Jennings wrote: > > Memory balloon drivers can allocate a large amount of memory which > > is not movable but could be freed to accomodate memory hotplug remove. > > > > Prior to calling the memory hotplug noti

Re: [PATCH 1/2][v2] mm: add notifier in pageblock isolation for balloon drivers

2009-10-09 Thread Robert Jennings
* KAMEZAWA Hiroyuki (kamezawa.hir...@jp.fujitsu.com) wrote: > On Fri, 2 Oct 2009 13:44:58 -0500 > Robert Jennings wrote: > > > Memory balloon drivers can allocate a large amount of memory which > > is not movable but could be freed to accomodate memory hotplug remove. > > > > Prior to calling th

Re: [PATCH 1/2][v2] mm: add notifier in pageblock isolation for balloon drivers

2009-10-09 Thread Mel Gorman
On Fri, Oct 02, 2009 at 01:44:58PM -0500, Robert Jennings wrote: > Memory balloon drivers can allocate a large amount of memory which > is not movable but could be freed to accomodate memory hotplug remove. > > Prior to calling the memory hotplug notifier chain the memory in the > pageblock is iso

Re: [PATCH 1/2][v2] mm: add notifier in pageblock isolation for balloon drivers

2009-10-08 Thread KAMEZAWA Hiroyuki
On Fri, 2 Oct 2009 13:44:58 -0500 Robert Jennings wrote: > Memory balloon drivers can allocate a large amount of memory which > is not movable but could be freed to accomodate memory hotplug remove. > > Prior to calling the memory hotplug notifier chain the memory in the > pageblock is isolated.

Re: [PATCH 1/2][v2] mm: add notifier in pageblock isolation for balloon drivers

2009-10-08 Thread Andrew Morton
On Fri, 2 Oct 2009 13:44:58 -0500 Robert Jennings wrote: > Memory balloon drivers can allocate a large amount of memory which > is not movable but could be freed to accomodate memory hotplug remove. > > Prior to calling the memory hotplug notifier chain the memory in the > pageblock is isolated.

[PATCH 1/2][v2] mm: add notifier in pageblock isolation for balloon drivers

2009-10-02 Thread Robert Jennings
Memory balloon drivers can allocate a large amount of memory which is not movable but could be freed to accomodate memory hotplug remove. Prior to calling the memory hotplug notifier chain the memory in the pageblock is isolated. If the migrate type is not MIGRATE_MOVABLE the isolation will not p