On Tue, Nov 7, 2017 at 12:39 PM, Mauro Carvalho Chehab
wrote:
> Em Tue, 7 Nov 2017 09:43:41 -0800
> Dan Williams escreveu:
>
>> On Tue, Nov 7, 2017 at 12:33 AM, Mauro Carvalho Chehab
>> wrote:
>> > Em Mon, 06 Nov 2017 16:57:28 -0800
>> > Dan Williams escreveu:
>> >
>> >> V4L2 memory registratio
Em Tue, 7 Nov 2017 09:43:41 -0800
Dan Williams escreveu:
> On Tue, Nov 7, 2017 at 12:33 AM, Mauro Carvalho Chehab
> wrote:
> > Em Mon, 06 Nov 2017 16:57:28 -0800
> > Dan Williams escreveu:
> >
> >> V4L2 memory registrations are incompatible with filesystem-dax that
> >> needs the ability to r
On Tue, Nov 7, 2017 at 12:33 AM, Mauro Carvalho Chehab
wrote:
> Em Mon, 06 Nov 2017 16:57:28 -0800
> Dan Williams escreveu:
>
>> V4L2 memory registrations are incompatible with filesystem-dax that
>> needs the ability to revoke dma access to a mapping at will, or
>> otherwise allow the kernel to
Em Mon, 06 Nov 2017 16:57:28 -0800
Dan Williams escreveu:
> V4L2 memory registrations are incompatible with filesystem-dax that
> needs the ability to revoke dma access to a mapping at will, or
> otherwise allow the kernel to wait for completion of DMA. The
> filesystem-dax implementation breaks
V4L2 memory registrations are incompatible with filesystem-dax that
needs the ability to revoke dma access to a mapping at will, or
otherwise allow the kernel to wait for completion of DMA. The
filesystem-dax implementation breaks the traditional solution of
truncate of active file backed mappings
