EISDIR           1365 lib/vfs/direntry.c         path_element->class->verrno = EISDIR;
EISDIR           1038 src/vfs/extfs/extfs.c         ERRNOR (EISDIR, NULL);
EISDIR           1361 src/vfs/extfs/extfs.c         path_element->class->verrno = EISDIR;
EISDIR            153 src/vfs/sftpfs/sftpfs.c         path_element->class->verrno = EISDIR;