Re: refcounting drivers' data structures used in sysfs buffers

Oliver Neukum
2007-03-12T19:49:09Z

Am Montag, 12. März 2007 20:31 schrieb Alan Stern:
> On Mon, 12 Mar 2007, Oliver Neukum wrote:
>
> > > I'm with Dmitry; the whole thing becomes much, much simpler if we put back
> > > your patch and prevent sysfs access after unregistering an attribute
> > > file. No API changes are needed, no driver changes are needed, no radical
> > > core changes are needed,... All we would have to do is fix the one SCSI
> > > method to make it use a workqueue.
> >
> > Try.
>
> I did. Didn't you see this message from Saturday:
>
> http://marc.theaimsgroup.com/?l=linux-kernel&m=117355959020831&w=2

Yes. In this case, silence is partial agreement. However, convincing me
is futile if Linus rejects the approach.

I wrote the original patch. But this problem must be solved. If the
first attempt is rejected, I'll try another.

> I sent it to Linus as well as to all of you. No replies received so far
> from anybody.
>
> > I don't like reverting my own code. But I predict he'll tell you that a
> > driver's bond with a device should be represented in a data structure
> > that is to be refcounted.
>
> :-)

Coming to think about it, he might be right there.

Regards
Oliver