rem: bootfs_write_stat(fs_cookie _fs, fs_vnode _v, struct stat *stat, int stat_mask)
add: bootfs_write_stat(fs_cookie _fs, fs_vnode _v, const struct stat *stat, int stat_mask)
context: bootfs_write_stat(fs_cookie _fs, fs_vnode _v, struct stat *stat, int stat_mask){	struct bootfs *fs = _fs;	struct bootfs_vnode *v = _v;	TRACE(("bootfs_wstat: vnode 0x%x (0x%x 0x%x), stat 0x%x\n", v, v->id, stat));	// cannot change anything	return EROFS;}