[CIFS] fix error mapping on getfacl to windows and old samba servers to map to EOPNOTSUPP

so the kernel's fall back mechanism works

Signed-off-by: Steve French (sfrench@us.ibm.com)

fs/cifs/CHANGES

+Version 1.26
+------------
+Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
+and other POSIX CIFS compliant servers.  Fix error mapping for getfacl 
+to EOPNOTSUPP when server does not support posix acls on the wire.
+
 Version 1.25
 ------------
 Fix internationlization problem in cifs readdir with filenames that map to 

fs/cifs/netmisc.c

@@ -69,6 +69,7 @@ const struct smb_to_posix_error mapping_table_ERRDOS[] = {
 	{ERRinvparm, -EINVAL},
 	{ERRdiskfull, -ENOSPC},
 	{ERRinvname, -ENOENT},
+	{ERRinvlevel,-EOPNOTSUPP},
 	{ERRdirnotempty, -ENOTEMPTY},
 	{ERRnotlocked, -ENOLCK},
 	{ERRalreadyexists, -EEXIST},

fs/cifs/xattr.c

@@ -244,6 +244,9 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name,
 		search server for EAs or streams to 
 		returns as xattrs */
 
+	if(rc == -EINVAL)
+		rc = -EOPNOTSUPP; 
+
 	if (full_path)
 		kfree(full_path);
 	FreeXid(xid);