EISDIR           1364 lib/vfs/direntry.c         path_element->class->verrno = EISDIR;
EISDIR           1036 src/vfs/extfs/extfs.c         ERRNOR (EISDIR, NULL);
EISDIR           1359 src/vfs/extfs/extfs.c         path_element->class->verrno = EISDIR;
EISDIR            142 src/vfs/sftpfs/vfs_class.c         path_element->class->verrno = EISDIR;