Something

again:	nfiles_snap = openfiles + nfiles_slack;	/* some slack */	extra_ref = malloc(nfiles_snap * sizeof(struct file *), M_TEMP,	    M_WAITOK);	sx_slock(&filelist_lock);	if (nfiles_snap < openfiles) {		sx_sunlock(&filelist_lock);		free(extra_ref, M_TEMP);		nfiles_slack += 20;		goto again;	}