1 /* $OpenBSD: ffs_extern.h,v 1.6 2016/10/22 17:15:28 natano Exp $ */ 2 /* $NetBSD: ffs_extern.h,v 1.6 2003/08/07 11:25:33 agc Exp $ */ 3 /* From: NetBSD: ffs_extern.h,v 1.19 2001/08/17 02:18:48 lukem Exp */ 4 5 /*- 6 * Copyright (c) 1991, 1993, 1994 7 * The Regents of the University of California. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)ffs_extern.h 8.6 (Berkeley) 3/30/95 34 */ 35 36 #include "ffs/buf.h" 37 38 /* 39 * Structure used to pass around logical block paths generated by 40 * ufs_getlbns and used by truncate and bmap code. 41 */ 42 struct indir { 43 daddr_t in_lbn; /* Logical block number. */ 44 int in_off; /* Offset in buffer. */ 45 int in_exists; /* Flag if the block exists. */ 46 }; 47 48 /* ffs_alloc.c */ 49 struct inode; 50 int ffs_alloc(struct inode *, daddr_t, daddr_t, int, daddr_t *); 51 daddr_t ffs_blkpref_ufs1(struct inode *, daddr_t, int, int32_t *); 52 daddr_t ffs_blkpref_ufs2(struct inode *, daddr_t, int, int64_t *); 53 void ffs_clusteracct(struct fs *, struct cg *, int32_t, int); 54 55 /* ffs_balloc.c */ 56 int ffs_balloc(struct inode *, off_t, int, struct mkfsbuf **); 57 58 /* ffs_subr.c */ 59 int ffs_isblock(struct fs *, u_char *, int32_t); 60 void ffs_clrblock(struct fs *, u_char *, int32_t); 61 void ffs_setblock(struct fs *, u_char *, int32_t); 62 63 /* ufs_bmap.c */ 64 int ufs_getlbns(struct inode *, daddr_t, struct indir *, int *); 65