17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 23*b59b3655SGarrett D'Amore * Copyright 2014 Garrett D'Amore <garrett@damore.org> 24*b59b3655SGarrett D'Amore * 257c478bd9Sstevel@tonic-gate * Copyright (c) 1997-1998 by Sun Microsystems, Inc. 267c478bd9Sstevel@tonic-gate * All rights reserved. 277c478bd9Sstevel@tonic-gate */ 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 307c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate 337c478bd9Sstevel@tonic-gate #ifndef _SYS_FBUF_H 347c478bd9Sstevel@tonic-gate #define _SYS_FBUF_H 357c478bd9Sstevel@tonic-gate 367c478bd9Sstevel@tonic-gate #include <sys/vnode.h> 377c478bd9Sstevel@tonic-gate 387c478bd9Sstevel@tonic-gate #ifdef __cplusplus 397c478bd9Sstevel@tonic-gate extern "C" { 407c478bd9Sstevel@tonic-gate #endif 417c478bd9Sstevel@tonic-gate 427c478bd9Sstevel@tonic-gate /* 437c478bd9Sstevel@tonic-gate * A struct fbuf is used to get a mapping to part of a file using the 447c478bd9Sstevel@tonic-gate * segkmap facilities. After you get a mapping, you can fbrelse() it 457c478bd9Sstevel@tonic-gate * (giving a seg code to pass back to segmap_release), you can fbwrite() 467c478bd9Sstevel@tonic-gate * it (causes a synchronous write back using the file mapping information), 477c478bd9Sstevel@tonic-gate * or you can fbiwrite it (causing indirect synchronous write back to 487c478bd9Sstevel@tonic-gate * the block number given without using the file mapping information). 497c478bd9Sstevel@tonic-gate */ 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate struct fbuf { 527c478bd9Sstevel@tonic-gate caddr_t fb_addr; 537c478bd9Sstevel@tonic-gate uint_t fb_count; 547c478bd9Sstevel@tonic-gate }; 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate extern int fbread(struct vnode *, offset_t, uint_t, enum seg_rw, 577c478bd9Sstevel@tonic-gate struct fbuf **); 587c478bd9Sstevel@tonic-gate extern void fbzero(struct vnode *, offset_t, uint_t, struct fbuf **); 597c478bd9Sstevel@tonic-gate extern int fbwrite(struct fbuf *); 607c478bd9Sstevel@tonic-gate extern int fbdwrite(struct fbuf *); 617c478bd9Sstevel@tonic-gate extern int fbiwrite(struct fbuf *, struct vnode *, daddr_t bn, int bsize); 627c478bd9Sstevel@tonic-gate extern void fbrelse(struct fbuf *, enum seg_rw); 637c478bd9Sstevel@tonic-gate 647c478bd9Sstevel@tonic-gate #ifdef __cplusplus 657c478bd9Sstevel@tonic-gate } 667c478bd9Sstevel@tonic-gate #endif 677c478bd9Sstevel@tonic-gate 687c478bd9Sstevel@tonic-gate #endif /* _SYS_FBUF_H */ 69