Re: [PATCH 3/3] [media] v4l2: disable filesystem-dax mapping support

2017-11-07 Thread Dan Williams
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

Re: [PATCH 3/3] [media] v4l2: disable filesystem-dax mapping support

2017-11-07 Thread Mauro Carvalho Chehab
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

Re: [PATCH 3/3] [media] v4l2: disable filesystem-dax mapping support

2017-11-07 Thread Dan Williams
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

Re: [PATCH 3/3] [media] v4l2: disable filesystem-dax mapping support

2017-11-07 Thread Mauro Carvalho Chehab
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 >