Re: [PATCH - nfs-utils] exportfs: report failure if asked to unexport something not exported.

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On 28/10/13 08:47, Steve Dickson wrote:
> Hello,
> 
> On 27/10/13 23:43, NeilBrown wrote:
>>
>> Currently if exportfs is asked to unexport something that is not
>> exported it silently succeeds.  This is not ideal, particularly for
>> scripting situations.
>>
>> So report an error unless the unexport was successful.
>>
>> Reported-by: Tony Asleson <tasleson@xxxxxxxxxx>
>> Signed-off-by: NeilBrown <neilb@xxxxxxx>
>>
>> diff --git a/utils/exportfs/exportfs.c b/utils/exportfs/exportfs.c
>> index 52fc03d..c9e12db 100644
>> --- a/utils/exportfs/exportfs.c
>> +++ b/utils/exportfs/exportfs.c
>> @@ -351,6 +351,7 @@ unexportfs(char *arg, int verbose)
>>  	char		*path;
>>  	char		*hname = arg;
>>  	int		htype;
>> +	int		success = 0;
>>  
>>  	if ((path = strchr(arg, ':')) != NULL)
>>  		*path++ = '\0';
>> @@ -397,7 +398,10 @@ unexportfs(char *arg, int verbose)
>>  #endif
>>  		exp->m_xtabent = 0;
>>  		exp->m_mayexport = 0;
>> +		success = 1;
>>  	}
>> +	if (!success)
>> +		xlog(L_ERROR, "Could not find %s to unexport.\n", arg);
>>  
>>  	freeaddrinfo(ai);
>>  }
>>
> This does not apply due commit 232eb7ad0... But I agree with doing a xlog
> on failures but I would like to cover it with the -v flag... Something 
> similar to :
> 
> [PATCH] exportfs: report failure if asked to unexport something not exported.
> 
> Currently if exportfs is asked to unexport something that is not
> exported it silently succeeds.  This is not ideal, particularly for
> scripting situations.
> 
> So report an error when the unexport was successful and the -v flag used.
> 
> Signed-off-by: Steve Dickson <steved@xxxxxxxxxx>
Committed...

steved.

> ---
>  utils/exportfs/exportfs.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/utils/exportfs/exportfs.c b/utils/exportfs/exportfs.c
> index 318deb3..6962444 100644
> --- a/utils/exportfs/exportfs.c
> +++ b/utils/exportfs/exportfs.c
> @@ -413,6 +413,8 @@ unexportfs(char *arg, int verbose)
>         exp->m_mayexport = 0;
>         rc = 1;
>     }
> +   if (!rc && verbose)
> +       xlog(L_ERROR, "Could not find '%s:%s' to unexport.", arg, path);
> 
>     freeaddrinfo(ai);
>     return rc;
> 
> 
> steved.
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