[sheepdog] [PATCH 5/7 v4 UPDATE] sheep: rename journal_file.c as journal.c

[Hitoshi Mitake]

At Fri, 05 Apr 2013 18:40:57 +0900,
Hitoshi Mitake wrote:
> 
> At Fri, 05 Apr 2013 17:36:09 +0800,
> Liu Yuan wrote:
> > 
> > On 04/05/2013 04:51 PM, Hitoshi Mitake wrote:
> > > do_recover should return here if a condition st.st_size == 0 is true.
> > > If st.st_size == 0, the below mmap() fails with Invalid argument.
> > 
> > if st.st_size == 0, then error handling of mmap() will return by
> > 
> >         if (map == MAP_FAILED) {
> >                 sd_eprintf("%m");
> >                 return -1;
> >         }
> > 
> > no?
> 
> Yes. the condition will be true and -1 is returned. And the return
> value causes an error of journal_file_init() called by main(). The
> error stops initialization process of sheep. Actually, I couldn't
> launch sheep process with this reason.
> 
> The problem is that zero-sized journal files are valid things and they
> can stop initialization of sheeps.

Sorry, I'm feeling my understanding is wrong. Are zero-sized journal
files invalid things?

Thanks,
Hitoshi