Re: [PATCH] nfs4.1: properly handle ENOTSUP in SECINFO_NO_NAME

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On 01/13/2014 11:54 PM, Weston Andros Adamson wrote:
> Don't check for -NFS4ERR_NOTSUPP, it's already been mapped to -ENOTSUPP
> by nfs4_stat_to_errno.
> 
> This allows the client to mount v4.1 servers that don't support
> SECINFO_NO_NAME by falling back to the "guess and check" method of
> nfs4_find_root_sec.
> 
> Signed-off-by: Weston Andros Adamson <dros@xxxxxxxxxxxxxxx>
> ---
> 
> I found this trying to mount a pynfs filelayout server.
> 

Yes at last BAT Frank fixed Ganesha so it can work with new clients.

Linux client is the standard the rest of the world needs to comply 
(Resistance is futile ;-) )

Thanks
Boaz

>  fs/nfs/nfs4proc.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
> index 15052b8..1d57b6a 100644
> --- a/fs/nfs/nfs4proc.c
> +++ b/fs/nfs/nfs4proc.c
> @@ -7920,7 +7920,7 @@ nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle,
>  		switch (err) {
>  		case 0:
>  		case -NFS4ERR_WRONGSEC:
> -		case -NFS4ERR_NOTSUPP:
> +		case -ENOTSUPP:
>  			goto out;
>  		default:
>  			err = nfs4_handle_exception(server, err, &exception);
> @@ -7954,7 +7954,7 @@ nfs41_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
>  	 * Fall back on "guess and check" method if
>  	 * the server doesn't support SECINFO_NO_NAME
>  	 */
> -	if (err == -NFS4ERR_WRONGSEC || err == -NFS4ERR_NOTSUPP) {
> +	if (err == -NFS4ERR_WRONGSEC || err == -ENOTSUPP) {
>  		err = nfs4_find_root_sec(server, fhandle, info);
>  		goto out_freepage;
>  	}
> 

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