On Sun, 2015-10-11 at 20:03 +0100, David Woodhouse wrote:
> As we try to put together a generic API for device access to processes'
> address space, I definitely think we want to stick with the model that
> we take a reference on the mm, and we *keep* it until the device driver
> unbinds from the m
Note that i am no longer actively pushing this patch serie but i believe the
solution it provides to be needed in one form or another. So I still think
discussion on this to be useful so see below for my answer.
On Sun, Oct 11, 2015 at 08:03:29PM +0100, David Woodhouse wrote:
> On Tue, 2014-07-08
On Tue, 2014-07-08 at 13:03 -0400, Jerome Glisse wrote:
>
> Now regarding the device side, if we were to cleanup inside the file release
> callback than we would be broken in front of fork. Imagine the following :
> - process A open device file and mirror its address space (hmm or kfd)
> thr
On Fri, Jun 27, 2014 at 10:00:19PM -0400, Jérôme Glisse wrote:
> Note that this patch also move the call to cleanup functions after
> exit_mmap so that new call back can assume that mmu_notifier_release
> have already been call. This does not impact existing cleanup functions
> as they do not rely
On Sun, Jun 29, 2014 at 08:49:16PM -0700, John Hubbard wrote:
> On Fri, 27 Jun 2014, Jérôme Glisse wrote:
>
> > From: Jérôme Glisse
> >
> > Several subsystem require a callback when a mm struct is being destroy
> > so that they can cleanup there respective per mm struct. Instead of
> > having ea
On Fri, 27 Jun 2014, Jérôme Glisse wrote:
> From: Jérôme Glisse
>
> Several subsystem require a callback when a mm struct is being destroy
> so that they can cleanup there respective per mm struct. Instead of
> having each subsystem add its callback to mmput use a notifier chain
> to call each o
From: Jérôme Glisse
Several subsystem require a callback when a mm struct is being destroy
so that they can cleanup there respective per mm struct. Instead of
having each subsystem add its callback to mmput use a notifier chain
to call each of the subsystem.
This will allow new subsystem to regi
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