On 29.11.22 10:08, Hans Verkuil wrote:
On 29/11/2022 09:48, David Hildenbrand wrote:
On 28.11.22 23:59, Andrew Morton wrote:
On Mon, 28 Nov 2022 09:18:47 +0100 David Hildenbrand wrote:
Less chances of things going wrong that way.
Just mention in the v2 cover letter that the first patch was
On 29/11/2022 09:48, David Hildenbrand wrote:
> On 28.11.22 23:59, Andrew Morton wrote:
>> On Mon, 28 Nov 2022 09:18:47 +0100 David Hildenbrand
>> wrote:
>>
Less chances of things going wrong that way.
Just mention in the v2 cover letter that the first patch was added to
make
On 28.11.22 23:59, Andrew Morton wrote:
On Mon, 28 Nov 2022 09:18:47 +0100 David Hildenbrand wrote:
Less chances of things going wrong that way.
Just mention in the v2 cover letter that the first patch was added to
make it easy to backport that fix without being hampered by merge
conflicts if
On Mon, 28 Nov 2022 09:18:47 +0100 David Hildenbrand wrote:
> > Less chances of things going wrong that way.
> >
> > Just mention in the v2 cover letter that the first patch was added to
> > make it easy to backport that fix without being hampered by merge
> > conflicts if it was added after you
On Mon, Nov 28, 2022 at 5:19 PM David Hildenbrand wrote:
>
> On 28.11.22 09:17, Hans Verkuil wrote:
> > Hi David,
> >
> > On 27/11/2022 11:35, David Hildenbrand wrote:
> >> On 16.11.22 11:26, David Hildenbrand wrote:
> >>> FOLL_FORCE is really only for ptrace access. According to commit
> >>> 7079
On 28/11/2022 09:18, David Hildenbrand wrote:
> On 28.11.22 09:17, Hans Verkuil wrote:
>> Hi David,
>>
>> On 27/11/2022 11:35, David Hildenbrand wrote:
>>> On 16.11.22 11:26, David Hildenbrand wrote:
FOLL_FORCE is really only for ptrace access. According to commit
707947247e95 ("media: vi
On 28.11.22 09:17, Hans Verkuil wrote:
Hi David,
On 27/11/2022 11:35, David Hildenbrand wrote:
On 16.11.22 11:26, David Hildenbrand wrote:
FOLL_FORCE is really only for ptrace access. According to commit
707947247e95 ("media: videobuf2-vmalloc: get_userptr: buffers are always
writable"), get_v
Hi David,
On 27/11/2022 11:35, David Hildenbrand wrote:
> On 16.11.22 11:26, David Hildenbrand wrote:
>> FOLL_FORCE is really only for ptrace access. According to commit
>> 707947247e95 ("media: videobuf2-vmalloc: get_userptr: buffers are always
>> writable"), get_vaddr_frames() currently pins all
On 16.11.22 11:26, David Hildenbrand wrote:
FOLL_FORCE is really only for ptrace access. According to commit
707947247e95 ("media: videobuf2-vmalloc: get_userptr: buffers are always
writable"), get_vaddr_frames() currently pins all pages writable as a
workaround for issues with read-only buffers.
On 23/11/2022 14:26, Hans Verkuil wrote:
> Hi David, Tomasz,
>
> On 16/11/2022 11:26, David Hildenbrand wrote:
>> FOLL_FORCE is really only for ptrace access. According to commit
>> 707947247e95 ("media: videobuf2-vmalloc: get_userptr: buffers are always
>> writable"), get_vaddr_frames() currently
Hi David, Tomasz,
On 16/11/2022 11:26, David Hildenbrand wrote:
> FOLL_FORCE is really only for ptrace access. According to commit
> 707947247e95 ("media: videobuf2-vmalloc: get_userptr: buffers are always
> writable"), get_vaddr_frames() currently pins all pages writable as a
> workaround for iss
On Wed, Nov 16, 2022 at 11:26:55AM +0100, David Hildenbrand wrote:
> FOLL_FORCE is really only for ptrace access. According to commit
> 707947247e95 ("media: videobuf2-vmalloc: get_userptr: buffers are always
> writable"), get_vaddr_frames() currently pins all pages writable as a
> workaround for i
FOLL_FORCE is really only for ptrace access. According to commit
707947247e95 ("media: videobuf2-vmalloc: get_userptr: buffers are always
writable"), get_vaddr_frames() currently pins all pages writable as a
workaround for issues with read-only buffers.
FOLL_FORCE, however, seems to be a legacy le
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