Re: [PATCH v2] selftests: prctl: Add new prctl test for PR_SET_NAME

[Shuah Khan]

On 7/14/23 10:21, Shuah Khan wrote:
> On 6/26/23 12:36, Osama Muhammad wrote:
> > Hi Shuah,
> >
> > Any feedback on this patch?.
> >
> > Thanks,
> > Osama
>
> Please don't top post when you are responding on kernel
> mailing lists. It gets very difficult to follow the
> comments in the email thread.
>
> > On Sat, 17 Jun 2023 at 18:01, Osama Muhammad <osmtendev@xxxxxxxxx> wrote:
> > > Hi,
> > >
> > > Yes, I did install the latest kernel headers and TASK_COMM_LEN is not
> > > accessible in userspace.
> > >
> > > I looked into the test which uses TASK_COMM_LEN but the test defines
> > > it in its own header file.
> > >
> > > Example:  https://elixir.bootlin.com/linux/latest/source/tools/testing/selftests/bpf/progs/pyperf.h#L13
>
> bfp test does things differently because its dependencies
> on run-time environment.
>
> > > TASK_COMM_LEN is defined in include/linux/sched.h, but this header
> > > file is not exposed to userspace.
>
> Correct. you can include linux/sched.h like other tests do
> Take a look at tools/testing/selftests/clone3

You are right about TASK_COMM_LEN not visible to user-space.
This patch has been applied to linux-kselftest next for 6.6-rc1

thanks,
-- Shuah