Hello.
On Sat, Mar 30, 2024 at 01:26:08PM +0200, Jarkko Sakkinen <jarkko@xxxxxxxxxx> wrote:
> > > It'd be more complicated and less readable to do all the stuff without the
> > > cgroup-tools, esp cgexec. I checked dependency, cgroup-tools only depends
> > > on libc so I hope this would not cause too much inconvenience.
> >
> > As per cgroup-tools, please prove this. It makes the job for more
> > complicated *for you* and you are making the job more complicated
> > to every possible person in the planet running any kernel QA.
> >
> > I weight the latter more than the former. And it is exactly the
> > reason why we did custom user space kselftest in the first place.
> > Let's keep the tradition. All I can say is that kselftest is
> > unfinished in its current form.
> >
> > What is "esp cgexec"?
>
> Also in kselftest we don't drive ultimate simplicity, we drive
> efficient CI/QA. By open coding something like subset of
> cgroup-tools needed to run the test you also help us later
> on to backtrack the kernel changes. With cgroups-tools you
> would have to use strace to get the same info.
FWIW, see also functions in
tools/testing/selftests/cgroup/cgroup_util.{h,c}.
They likely cover what you need already -- if the tests are in C.
(I admit that stuff in tools/testing/selftests/cgroup/ is best
understood with strace.)
HTH,
Michal
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