rem: static int rootfs_remove_from_dir(struct rootfs_vnode *dir, struct rootfs_vnode *findit)
add: rootfs_remove_from_dir(struct rootfs_vnode *dir, struct rootfs_vnode *findit)
context: static int rootfs_remove_from_dir(struct rootfs_vnode *dir, struct rootfs_vnode *findit){	struct rootfs_vnode *v;	struct rootfs_vnode *last_v;	for(v = dir->stream.dir.dir_head, last_v = NULL; v; last_v = v, v = v->dir_next) {		if(v == findit) {			/* make sure all dircookies dont point to this vnode */			update_dircookies(dir, v);			if(last_v)				last_v->dir_next = v->dir_next;			else				dir->stream.dir.dir_head = v->dir_next;			v->dir_next = NULL;			return 0;		}	}	return -1;}