Re: [PATCH] staging: vchiq: rework remove_event handling

[Arnd Bergmann]

On Tue, Dec 11, 2018 at 1:31 PM Nicolas Saenz Julienne
<nsaenzjulienne@xxxxxxx> wrote:
>
> On Tue, 2018-12-11 at 13:07 +0300, Dan Carpenter wrote:
> > On Mon, Dec 10, 2018 at 10:11:58PM +0100, Arnd Bergmann wrote:
> > > Note that I'm changing it back to 'killable' after the previous
> > > patch
> > > changed 'killable' to 'interruptible', apparently based on a
> > > misunderstanding
> > > of the subtle down_interruptible() macro override in
> > > vchiq_killable.h.
> >
> > Oh wow...  The non standard down_interruptible() macro is ugly.
> >
>
> Same reaction here, *_*. I wasn't even aware of it.
>
> Arnd, as long as it you're not doing it already. I'll prepare some
> extra fixes for the rest of completions and get rid of that file
> altogether.

Ok, please do that, and add me to Cc. I think there is one
counting semaphore left (g_free_fragments_sema), which could
just use the plain down_killable() before you remove the wrapper.

I actually have another (longer) patch series that is not entirely
ready to convert all counting semaphores into a new
'struct counting_semaphore' to split them away from the
semaphores that can be converted into mutexes, completions
or other replacements.

       Arnd