10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 70Sstevel@tonic-gate * with the License. 80Sstevel@tonic-gate * 90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 110Sstevel@tonic-gate * See the License for the specific language governing permissions 120Sstevel@tonic-gate * and limitations under the License. 130Sstevel@tonic-gate * 140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 190Sstevel@tonic-gate * 200Sstevel@tonic-gate * CDDL HEADER END 210Sstevel@tonic-gate */ 22*1219Sraf 230Sstevel@tonic-gate /* 24*1219Sraf * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 250Sstevel@tonic-gate * Use is subject to license terms. 260Sstevel@tonic-gate */ 270Sstevel@tonic-gate 280Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 290Sstevel@tonic-gate 30*1219Sraf #include "synonyms.h" 310Sstevel@tonic-gate #include <sys/types.h> 320Sstevel@tonic-gate #include <unistd.h> 330Sstevel@tonic-gate #include <sys/filio.h> 340Sstevel@tonic-gate 350Sstevel@tonic-gate /* 360Sstevel@tonic-gate * directio() allows an application to provide advise to the 370Sstevel@tonic-gate * filesystem to optimize read and write performance. 380Sstevel@tonic-gate */ 390Sstevel@tonic-gate 400Sstevel@tonic-gate int 410Sstevel@tonic-gate directio(int fildes, int advice) 420Sstevel@tonic-gate { 430Sstevel@tonic-gate return (ioctl(fildes, _FIODIRECTIO, advice)); 440Sstevel@tonic-gate } 45