[openib-general] [PATCH 1 of 2] core extensions to fix race at module unloading

[Michael S. Tsirkin]

Quoting r. Roland Dreier <rdreier at cisco.com>:
> Subject: Re: [openib-general] [PATCH 1 of 2] core extensions to fix race at module unloading
> 
>     Sean> To restate what I've mentioned before, I don't see any issue
>     Sean> with the ib_mad interface.  It doesn't make sense to me to
>     Sean> change this API, when the problem is in the client.
>     Sean> But I'd like to hear what others think.
> 
> I agree.  If we care about fixing this, it seems better to put it in
> the SA module, and make every consumer of the SA have to allocate a
> cookie before using it.  Then we can wait for callbacks when freeing
> the cookie. Similarly I guess we just get rid of the "free my cm_id"
> return value from CM callbacks and make everyone free cm_ids from
> non-callback context.

Well, I don't see how to implement all this. You guys go ahead then.

-- 
MST