ufsmount.h revision 76132
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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. 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 * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95 34 * $FreeBSD: head/sys/ufs/ufs/ufsmount.h 76132 2001-04-29 12:36:52Z phk $ 35 */ 36 37#ifndef _UFS_UFS_UFSMOUNT_H_ 38#define _UFS_UFS_UFSMOUNT_H_ 39 40/* 41 * Arguments to mount UFS-based filesystems 42 */ 43struct ufs_args { 44 char *fspec; /* block special device to mount */ 45 struct export_args export; /* network export information */ 46}; 47 48/* 49 * Arguments to mount MFS 50 */ 51struct mfs_args { 52 char *fspec; /* name to export for statfs */ 53 struct export_args export; /* if exported MFSes are supported */ 54 caddr_t base; /* base of file system in memory */ 55 u_long size; /* size of file system */ 56}; 57 58#ifdef _KERNEL 59 60#ifdef MALLOC_DECLARE 61MALLOC_DECLARE(M_UFSMNT); 62#endif 63 64struct buf; 65struct inode; 66struct nameidata; 67struct timeval; 68struct ucred; 69struct uio; 70struct vnode; 71struct ufs_extattr_per_mount; 72 73/* This structure describes the UFS specific mount structure data. */ 74struct ufsmount { 75 struct mount *um_mountp; /* filesystem vfs structure */ 76 dev_t um_dev; /* device mounted */ 77 struct vnode *um_devvp; /* block device mounted vnode */ 78 79 union { /* pointer to superblock */ 80 struct fs *fs; /* FFS */ 81 struct ext2_sb_info *e2fs; /* EXT2FS */ 82 } ufsmount_u; 83#define um_fs ufsmount_u.fs 84#define um_e2fs ufsmount_u.e2fs 85#define um_e2fsb ufsmount_u.e2fs->s_es 86 87 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */ 88 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */ 89 struct ufs_extattr_per_mount um_extattr; /* extended attrs */ 90 u_long um_nindir; /* indirect ptrs per block */ 91 u_long um_bptrtodb; /* indir ptr to disk block */ 92 u_long um_seqinc; /* inc between seq blocks */ 93 time_t um_btime[MAXQUOTAS]; /* block quota time limit */ 94 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */ 95 char um_qflags[MAXQUOTAS]; /* quota specific flags */ 96 int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */ 97 struct malloc_type *um_malloctype; /* The inodes malloctype */ 98 int um_i_effnlink_valid; /* i_effnlink valid? */ 99 int (*um_balloc) __P((struct vnode *, off_t, int, struct ucred *, int, struct buf **)); 100 int (*um_blkatoff) __P((struct vnode *, off_t, char **, struct buf **)); 101 int (*um_truncate) __P((struct vnode *, off_t, int, struct ucred *, struct proc *)); 102 int (*um_update) __P((struct vnode *, int)); 103 int (*um_valloc) __P((struct vnode *, int, struct ucred *, struct vnode **)); 104 int (*um_vfree) __P((struct vnode *, ino_t, int)); 105}; 106 107#define UFS_BALLOC(aa, bb, cc, dd, ee, ff) VFSTOUFS((aa)->v_mount)->um_balloc(aa, bb, cc, dd, ee, ff) 108#define UFS_BLKATOFF(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd) 109#define UFS_TRUNCATE(aa, bb, cc, dd, ee) VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd, ee) 110#define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb) 111#define UFS_VALLOC(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd) 112#define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc) 113 114/* 115 * Flags describing the state of quotas. 116 */ 117#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 118#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 119 120/* Convert mount ptr to ufsmount ptr. */ 121#define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) 122 123/* 124 * Macros to access file system parameters in the ufsmount structure. 125 * Used by ufs_bmap. 126 */ 127#define MNINDIR(ump) ((ump)->um_nindir) 128#define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 129#define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc) 130#endif /* _KERNEL */ 131 132#endif 133