[Qemu-devel] Re: [v1 PATCH 1/3]: Move the paio_signal_handler to a generic location.

[Arun R Bharadwaj <arun@linux.vnet.ibm.com>]

* Stefan Hajnoczi <stefanha@gmail.com> [2011-03-15 11:38:03]:

> On Tue, Mar 15, 2011 at 10:36 AM, Arun R Bharadwaj
> <arun@linux.vnet.ibm.com> wrote:
> > * Arun R Bharadwaj <arun@linux.vnet.ibm.com> [2011-03-15 16:04:53]:
> >
> > Author: Arun R Bharadwaj <arun@linux.vnet.ibm.com>
> > Date:   Thu Mar 10 14:45:25 2011 +0530
> >
> >    Move the paio_signal_handler to a generic location.
> >
> >    The paio subsystem uses the signal, SIGUSR2. So move
> >    the signal handler to a more generic place such that
> >    other subsystems like 9pfs can also use it.
> >
> >    TODO: I have moved the signal handler code to
> >    qemu-thread.c, which is NOT the right place. I need
> >    suggestions as to where is the right place to put it.
> 
> I think os-posix.c would be appropriate.  Please check how this
> affects Windows host and linux-user builds.
> 

Anthony's reply negates this point. I will remove the signalling code
and also check the behaviour of Windows host and linux-user builds.

> > @@ -356,6 +359,15 @@ static void *aio_thread(void *unused)
> >         idle_threads++;
> >         mutex_unlock(&lock);
> >
> > +        if (posix_aio_state) {
> 
> If we get here posix_aio_state must be non-NULL.  Please remove the check.
> 

Yes, will remove this.

> > +void sigusr2_signal_handler(int signum)
> 
> static void sigusr2_signal_handler(int signum)
> 

Thanks for noticing this.

> Stefan