On Thu, 15 Aug 2013, Minchan Kim wrote:
> Now mlock pages could be migrated in case of CMA so I think it's not a
> big problem to migrate it for other cases.
> I remember You and Peter argued what's the mlock semainc of pin POV
> and as I remember correctly, Peter said mlock doesn't mean pin so
>
Hey Christoph,
On Wed, Aug 14, 2013 at 04:58:36PM +, Christoph Lameter wrote:
> On Thu, 15 Aug 2013, Minchan Kim wrote:
>
> > When I look API of mmu_notifier, it has mm_struct so I guess it works
> > for only user process. Right?
>
> Correct. A process must have mapped the pages. If you can
On Thu, 15 Aug 2013, Minchan Kim wrote:
> When I look API of mmu_notifier, it has mm_struct so I guess it works
> for only user process. Right?
Correct. A process must have mapped the pages. If you can get a
kernel "process" to work then that process could map the pages.
> If so, I need to regis
On Wed, 14 Aug 2013, Minchan Kim wrote:
> On Tue, Aug 13, 2013 at 04:21:30PM +, Christoph Lameter wrote:
> > On Tue, 13 Aug 2013, Minchan Kim wrote:
> >
> > > VM sometime want to migrate and/or reclaim pages for CMA, memory-hotplug,
> > > THP and so on but at the moment, it could handle only u
Hi Christoph,
On Wed, Aug 14, 2013 at 04:36:44PM +, Christoph Lameter wrote:
> On Wed, 14 Aug 2013, Minchan Kim wrote:
>
> > On Tue, Aug 13, 2013 at 04:21:30PM +, Christoph Lameter wrote:
> > > On Tue, 13 Aug 2013, Minchan Kim wrote:
> > >
> > > > VM sometime want to migrate and/or reclai
Hello Christoph,
On Tue, Aug 13, 2013 at 04:21:30PM +, Christoph Lameter wrote:
> On Tue, 13 Aug 2013, Minchan Kim wrote:
>
> > VM sometime want to migrate and/or reclaim pages for CMA, memory-hotplug,
> > THP and so on but at the moment, it could handle only userspace pages
> > so if above e
Hello Benjamin,
On Tue, Aug 13, 2013 at 10:23:38AM -0400, Benjamin LaHaise wrote:
> On Tue, Aug 13, 2013 at 11:46:42AM +0200, Krzysztof Kozlowski wrote:
> > Hi Minchan,
> >
> > On wto, 2013-08-13 at 16:04 +0900, Minchan Kim wrote:
> > > patch 2 introduce pinpage control
> > > subsystem. So, subsy
Hello Krzysztof,
On Tue, Aug 13, 2013 at 11:46:42AM +0200, Krzysztof Kozlowski wrote:
> Hi Minchan,
>
> On wto, 2013-08-13 at 16:04 +0900, Minchan Kim wrote:
> > patch 2 introduce pinpage control
> > subsystem. So, subsystems want to control pinpage should implement own
> > pinpage_xxx functions
On Tue, 13 Aug 2013, Minchan Kim wrote:
> VM sometime want to migrate and/or reclaim pages for CMA, memory-hotplug,
> THP and so on but at the moment, it could handle only userspace pages
> so if above example subsystem have pinned a some page in a range VM want
> to migrate, migration is failed s
On Tue, Aug 13, 2013 at 11:46:42AM +0200, Krzysztof Kozlowski wrote:
> Hi Minchan,
>
> On wto, 2013-08-13 at 16:04 +0900, Minchan Kim wrote:
> > patch 2 introduce pinpage control
> > subsystem. So, subsystems want to control pinpage should implement own
> > pinpage_xxx functions because each subsy
Hi Minchan,
On wto, 2013-08-13 at 16:04 +0900, Minchan Kim wrote:
> patch 2 introduce pinpage control
> subsystem. So, subsystems want to control pinpage should implement own
> pinpage_xxx functions because each subsystem would have other character
> so what kinds of data structure for managing pi
!! NOTICE !!
It's totally untested patchset so please AVOID real testing.
I'd like to show just concept and want to discuss it on very early stage.
(so there isn't enough description but I guess code is very simple so
not a big problem to understand the intention).
This patchset is for solving *ke
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