[PATCH] knfsd: nfsd4: fix error return on unsupported acl

We should be returning ATTRNOTSUPP, not NOTSUPP, when acls are unsupported.

Also fix a comment.
Signed-off-by: N"J. Bruce Fields" <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

fs/nfsd/nfs4xdr.c

@@ -253,7 +253,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, struct iattr *ia
 		return status;
 
 	/*
-	 * According to spec, unsupported attributes return ERR_NOTSUPP;
+	 * According to spec, unsupported attributes return ERR_ATTRNOTSUPP;
 	 * read-only attributes return ERR_INVAL.
 	 */
 	if ((bmval[0] & ~NFSD_SUPPORTED_ATTRS_WORD0) || (bmval[1] & ~NFSD_SUPPORTED_ATTRS_WORD1))

fs/nfsd/vfs.c

@@ -466,7 +466,10 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
 	posix_acl_release(dpacl);
 	return (error);
 out_nfserr:
-	error = nfserrno(host_error);
+	if (host_error == -EOPNOTSUPP)
+		error = nfserr_attrnotsupp;
+	else
+		error = nfserrno(host_error);
 	goto out;
 }