1 /* $NetBSD: buf.h,v 1.3 2001/11/02 03:12:49 lukem Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-4-Clause 5 * 6 * Copyright (c) 2001 Wasabi Systems, Inc. 7 * All rights reserved. 8 * 9 * Written by Luke Mewburn for Wasabi Systems, Inc. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed for the NetBSD Project by 22 * Wasabi Systems, Inc. 23 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 24 * or promote products derived from this software without specific prior 25 * written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 * 39 * $FreeBSD: head/usr.sbin/makefs/ffs/buf.h 336736 2018-07-26 13:33:10Z emaste $ 40 */ 41 42 #ifndef _FFS_BUF_H 43 #define _FFS_BUF_H 44 45 #include <sys/param.h> 46 #include <sys/queue.h> 47 #include <sys/vfscache.h> 48 49 #include "ffs.h" /* XXX swildner: for compat defines */ 50 51 struct makefs_fsinfo; 52 struct ucred; 53 54 struct m_vnode { 55 struct makefs_fsinfo *fs; 56 void *v_data; 57 enum vtype v_type; /* DragonFly */ 58 int v_logical; /* DragonFly */ 59 int v_vflushed; /* DragonFly */ 60 int v_malloced; /* DragonFly */ 61 }; 62 63 typedef enum buf_cmd { 64 BUF_CMD_READ = 1, 65 BUF_CMD_WRITE, 66 BUF_CMD_FLUSH, 67 } buf_cmd_t; 68 69 struct m_buf { 70 char * b_data; 71 long b_bufsize; 72 long b_bcount; 73 makefs_daddr_t b_blkno; 74 makefs_daddr_t b_lblkno; 75 makefs_daddr_t b_loffset; /* DragonFly */ 76 buf_cmd_t b_cmd; /* DragonFly */ 77 struct m_vnode *b_vp; /* DragonFly */ 78 struct makefs_fsinfo *b_fs; 79 80 TAILQ_ENTRY(m_buf) b_tailq; 81 }; 82 83 void bcleanup(void); 84 int bread(struct m_vnode *, makefs_daddr_t, int, struct ucred *, 85 struct m_buf **); 86 void brelse(struct m_buf *); 87 int bwrite(struct m_buf *); 88 struct m_buf * getblk(struct m_vnode *, makefs_daddr_t, int, int, int, int); 89 90 #define bdwrite(bp) bwrite(bp) 91 #define clrbuf(bp) memset((bp)->b_data, 0, (u_int)(bp)->b_bcount) 92 93 #endif /* _FFS_BUF_H */ 94