[Linux-cluster] Re: [PATCH 00/14] GFS

[David Teigland]

On Wed, Aug 03, 2005 at 11:17:09AM +0200, Arjan van de Ven wrote:
> On Wed, 2005-08-03 at 11:56 +0800, David Teigland wrote:
> > The point is you can define GFS2_ENDIAN_BIG to compile gfs to be BE
> > on-disk instead of LE which is another useful way to verify endian
> > correctness.
> 
> that sounds wrong to be a compile option. If you really want to deal
> with dual disk endianness it really ought to be a runtime one (see jffs2
> for example).

We don't want BE to be an "option" per se; as developers we'd just like to
be able to compile it that way to verify gfs's endianness handling.  If
you think that's unmaintainable or a bad idea we'll rip it out.

> > > * +	while (!kthread_should_stop()) {
> > > +		gfs2_scand_internal(sdp);
> > > +
> > > +		set_current_state(TASK_INTERRUPTIBLE);
> > > +		schedule_timeout(gfs2_tune_get(sdp, gt_scand_secs) * HZ);
> > > 
> > > you probably really want to check for signals if you do
> > > interruptible sleeps
> > 
> > I don't know why we'd be interested in signals here.
> 
> well.. because if you don't your schedule_timeout becomes a nop when you
> get one, which makes your loop a busy waiting one.

OK, it looks like we need to block/flush signals a la daemonize(); I guess
I mistakenly figured the kthread routines did everything daemonize did.
Thanks,
Dave