Re: [PATCH v2 03/13] rust: lock: introduce `Mutex`

Peter Zijlstra
2023-04-05T19:18:56Z

On Wed, Apr 05, 2023 at 08:04:22PM +0200, Greg KH wrote:
> On Wed, Apr 05, 2023 at 08:03:11PM +0200, Greg KH wrote:
> > On Wed, Apr 05, 2023 at 02:51:01PM -0300, Wedson Almeida Filho wrote:
> > > +void rust_helper_mutex_lock(struct mutex *lock)
> > > +{
> > > + mutex_lock(lock);
> > > +}
> > > +EXPORT_SYMBOL_GPL(rust_helper_mutex_lock);
> > > +
> >
> > No need to ever unlock a mutex?
>
> Oh nevermind, mutex_lock() is a macro, mutex_unlock() is not...

Yeah, so I despise all these stupid helpers... but I suppose it's the
best they could come up with to interface the languages :/

The only hope is that the thing can do cross-language LTO or something
to re-inline stuff.