Re: [PATCH v2] ww_mutex: convert self-test to KUnit

[Peter Zijlstra]

On Thu, Feb 13, 2025 at 10:42:24AM -0500, Tamir Duberstein wrote:
> On Thu, Feb 13, 2025 at 6:59 AM Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> >
> > On Thu, Feb 13, 2025 at 06:40:20AM -0500, Tamir Duberstein wrote:
> > > Convert this unit test to a KUnit test. This allows the test to benefit
> > > from the KUnit tooling. Note that care is taken to avoid test-ending
> > > assertions in worker threads, which is unsafe in KUnit (and wasn't done
> > > before this change either).
> >
> > So this was something simple, and now I need to know how to operate this
> > kunit nonsense :-(
> >
> > How is that an improvement?
> 
> Hi Peter,
> 
> David enumerated some of the benefits of KUnit in another
> thread: https://lore.kernel.org/all/CABVgOS=KZrM2dWyp1HzVS0zh7vquLxmTY2T2Ti53DQADrW+sJg@xxxxxxxxxxxxxx/.
> 
> My personal reason for preferring KUnit is that it's much easier to
> run from userspace; the tooling takes care of building, starting the
> VM, running the tests, and producing a human-friendly report.

Wait what -- you have to run a VM just to use Kunit? That's a hard pass.

If I can't simply run it natively on my test box, its a no go. And it
using python also don't help, you shouldn't be needing that to load a
module.