add: FUNCTION(("vfs_fsync: entry. fd %d kernel %d\n", fd, kernel));
context: vfs_fsync(int fd, bool kernel){	struct file_descriptor *f;	struct vnode *v;	int err;#if MAKE_NOIZE	dprintf("vfs_fsync: entry. fd %d kernel %d\n", fd, kernel);#endif	f = get_fd(get_current_io_context(kernel), fd);	if (!f)		return ERR_INVALID_HANDLE;	v = f->vnode;	err = v->mount->fs->calls->fs_fsync(v->mount->cookie, v->priv_vnode);	put_fd(f);	return err;}