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

[Steve Dickson <SteveD@redhat.com>]

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@redhat.com>
> Signed-off-by: NeilBrown <neilb@suse.de>
> 
> 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@redhat.com>
---
 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.