Re: [PATCH] xfs_repair: update the manual content about xfs_repair exit status

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On Wed, Jan 11, 2017 at 07:47:41AM -0600, Eric Sandeen wrote:
> 
> 
> On 1/10/17 11:18 PM, Zorro Lang wrote:
> > The man 8 xfs_repair said "xfs_repair run without the -n option will
> > always return a status code of 0". That's not correct.
> > 
> > xfs_repair will return 2 if it finds a fs log which needs to be
> > replayed or cleared, 1 if runtime error is encountered, and 0 for
> > all other cases.
> > 
> > Signed-off-by: Zorro Lang <zlang@xxxxxxxxxx>
> > ---
> > 
> > Hi,
> > 
> > This patch has been stayed in my local xfsprogs repo for a long
> > time. So I'm sending it out again :)
> 
> Yep, sorry about that.  Last comment on it was that the sentence
> had become a run-on sentence ...
> 
> How about:
> 
> .B xfs_repair
> run without the -n option will always return a status code of 0 if it
> runs without problems, regardless of whether filesystem corruption was
> detected.  If an unexpected runtime error is encountered, it will return
> a status code of 1, and xfs_repair should be restarted.  If a dirty
> log is encountered which prevents it from continuing, it will return a

If we use "dirty log" at here, I think maybe many people don't know how to deal
with "dirty log" (even what's dirty log:)

> status code of 2.
> 
> (I think that the right place to document mount/unmount and/or -L is
> /not/ in the status code docs - if we need that info, it should go
> elsewhere.)

Hmm, that sounds make sense, maybe I can add those description about
"-L" behind the "-L" option description line.

Thanks,
Zorro

> 
> -eric
> 
> > Thanks,
> > Zorro
> > 
> >  man/man8/xfs_repair.8 | 10 ++++++++--
> >  1 file changed, 8 insertions(+), 2 deletions(-)
> > 
> > diff --git a/man/man8/xfs_repair.8 b/man/man8/xfs_repair.8
> > index 1b4d9e3..314f2c2 100644
> > --- a/man/man8/xfs_repair.8
> > +++ b/man/man8/xfs_repair.8
> > @@ -504,12 +504,18 @@ that is known to be free. The entry is therefore invalid and is deleted.
> >  This message refers to a large directory.
> >  If the directory were small, the message would read "junking entry ...".
> >  .SH EXIT STATUS
> > +.TP
> >  .B xfs_repair \-n
> > -(no modify node)
> > +(no modify mode)
> >  will return a status of 1 if filesystem corruption was detected and
> >  0 if no filesystem corruption was detected.
> > +.TP
> >  .B xfs_repair
> > -run without the \-n option will always return a status code of 0.
> > +run without the \-n option will return a status code of 2 if it finds a
> > +filesystem log which needs to be replayed (by a mount/umount cycle) or
> > +cleared (by -L option), 1 if a runtime error is encountered, filesystem
> > +may be even more broken than before, so repair needs to be run again,
> > +and 0 in all other cases, whether or not filesystem corruption was detected.
> >  .SH BUGS
> >  The filesystem to be checked and repaired must have been
> >  unmounted cleanly using normal system administration procedures
> > 
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