[linux-dvb] Re: [PATCH] support for multiple feeds per pid

[Holger Waechtler <holger@convergence.de>]

Emard wrote:
> > looks good on a first glance and was a long awaited feature.
> >
> > Maybe we should add a short-circuited path using a 
> > 'PIDs-in-use-lookup-table' at some point in the future in order to 
> > prevent list iterations for PIDs without attached filters...
>
> My stability tests pass, but is locking between user-space and
> tasklet context really properly done with the pid-list and the 
> rest of sw_demux?
>
> I mean race condition of vpeirq() using sw_demux while other
> process updates the list... aiieee?
Do you see an obvious lock that's not hold while processing a list?

Holger



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