On Mon, 6 Jun 2005, Harald Welte wrote:
> On Wed, Jun 01, 2005 at 12:12:58AM +0200, Harald Welte wrote:
>
> > > > Wouldn't it help to associate the URB with the file (instaed of the
> > > > task), and then send the signal to any task that still has opened the
> > > > file? I'm willing to hack up a patch, if this is considered a sane fix.
> > >
> > > Sounds reasonable, except that not all such tasks will want the signal.
> > > Though I guess the infrastructure to filter the signal out already exists,
> > > so the main missing piece is that urb-to-file binding.
> >
> > Ok, I'll get something coded shortly.
>
> Unfortunately this approach is not feasible, since there is no 'reverse
> mapping' from a file to a process. So for every URB delivery, we would
> have to walk that task_list and check which tasks have opened this file.
What about something like the standard FSETOWN fnctl?
Alan Stern
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