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Re: [dm-devel] Re: [PATCH 2/9] dm snapshot: add lookup_completed_exception hook to struct exception_store



On Wed, 29 Oct 2008 23:52:34 +0000
Alasdair G Kergon <agk redhat com> wrote:

> On Mon, Oct 27, 2008 at 09:07:49PM +0900, FUJITA Tomonori wrote:
> > +struct dm_snap_exception *lookup_complete_exception(struct dm_snapshot *s,
> > +						    chunk_t chunk)
> > +{
> > +	if (s->store.lookup_completed_exception)
> > +		return s->store.lookup_completed_exception(&s->store, chunk);
> > +	else
> > +		return lookup_exception(&s->complete, chunk);
> > +}
> 
> Can we have symmetry here such that lookup_completed_exception is *required* to be
> defined for all snapshot types?

Sure, we can. It would be cleaner, I guess. I'll do next time.

Thanks,


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