1 /*- 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95 30 * $FreeBSD: src/sys/ufs/ufs/ufsmount.h,v 1.17 1999/12/29 04:55:06 peter Exp $ 31 */ 32 33 #ifndef _VFS_UFS_UFSMOUNT_H_ 34 #define _VFS_UFS_UFSMOUNT_H_ 35 36 /* 37 * Arguments to mount UFS-based filesystems 38 */ 39 struct ufs_args { 40 char *fspec; /* block special device to mount */ 41 struct export_args export; /* network export information */ 42 }; 43 44 /* 45 * Arguments to mount MFS 46 */ 47 struct mfs_args { 48 char *fspec; /* name to export for statfs */ 49 struct export_args export; /* if exported MFSes are supported */ 50 caddr_t base; /* base of filesystem in memory */ 51 u_long size; /* size of filesystem */ 52 }; 53 54 #ifdef _KERNEL 55 56 #ifdef MALLOC_DECLARE 57 MALLOC_DECLARE(M_UFSMNT); 58 #endif 59 60 struct buf; 61 struct inode; 62 struct timeval; 63 struct ucred; 64 struct uio; 65 struct vnode; 66 struct netexport; 67 68 /* This structure describes the UFS specific mount structure data. */ 69 struct ufsmount { 70 struct mount *um_mountp; /* filesystem vfs structure */ 71 cdev_t um_dev; /* device mounted */ 72 struct vnode *um_devvp; /* block device mounted vnode */ 73 74 struct fs *um_fs; /* FFS */ 75 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */ 76 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */ 77 u_long um_nindir; /* indirect ptrs per block */ 78 u_long um_bptrtodb; /* indir ptr to disk block */ 79 u_long um_seqinc; /* inc between seq blocks */ 80 ufs_time_t um_btime[MAXQUOTAS]; /* block quota time limit */ 81 ufs_time_t um_itime[MAXQUOTAS]; /* inode quota time limit */ 82 char um_qflags[MAXQUOTAS]; /* quota specific flags */ 83 struct netexport um_export; /* export information */ 84 int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */ 85 struct malloc_type *um_malloctype; /* The inodes malloctype */ 86 int um_i_effnlink_valid; /* i_effnlink valid? */ 87 struct inode **um_ihashtbl; /* inum to inode map */ 88 u_long um_ihash; /* size of hash table - 1 */ 89 }; 90 91 /* 92 * Flags describing the state of quotas. 93 */ 94 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 95 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 96 97 /* Convert mount ptr to ufsmount ptr. */ 98 #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) 99 100 /* 101 * Macros to access filesystem parameters in the ufsmount structure. 102 * Used by ufs_bmap. 103 */ 104 #define MNINDIR(ump) ((ump)->um_nindir) 105 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 106 #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc) 107 #endif /* _KERNEL */ 108 109 #endif /* !_VFS_UFS_UFSMOUNT_H_ */ 110