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
>
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
we
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
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
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
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 reclaim pages for
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 userspace
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 register
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 get a
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
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,
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
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
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
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
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 subsystem
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 so
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 because
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, subsystems want
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 example
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