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

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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
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.)

-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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