ufsmount.h revision 77437
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 77437 2001-05-29 21:21:53Z 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#ifdef _KERNEL 49 50#ifdef MALLOC_DECLARE 51MALLOC_DECLARE(M_UFSMNT); 52#endif 53 54struct buf; 55struct inode; 56struct nameidata; 57struct timeval; 58struct ucred; 59struct uio; 60struct vnode; 61struct ufs_extattr_per_mount; 62 63/* This structure describes the UFS specific mount structure data. */ 64struct ufsmount { 65 struct mount *um_mountp; /* filesystem vfs structure */ 66 dev_t um_dev; /* device mounted */ 67 struct vnode *um_devvp; /* block device mounted vnode */ 68 69 union { /* pointer to superblock */ 70 struct fs *fs; /* FFS */ 71 struct ext2_sb_info *e2fs; /* EXT2FS */ 72 } ufsmount_u; 73#define um_fs ufsmount_u.fs 74#define um_e2fs ufsmount_u.e2fs 75#define um_e2fsb ufsmount_u.e2fs->s_es 76 77 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */ 78 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */ 79 struct ufs_extattr_per_mount um_extattr; /* extended attrs */ 80 u_long um_nindir; /* indirect ptrs per block */ 81 u_long um_bptrtodb; /* indir ptr to disk block */ 82 u_long um_seqinc; /* inc between seq blocks */ 83 time_t um_btime[MAXQUOTAS]; /* block quota time limit */ 84 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */ 85 char um_qflags[MAXQUOTAS]; /* quota specific flags */ 86 int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */ 87 struct malloc_type *um_malloctype; /* The inodes malloctype */ 88 int um_i_effnlink_valid; /* i_effnlink valid? */ 89 int (*um_balloc) __P((struct vnode *, off_t, int, struct ucred *, int, struct buf **)); 90 int (*um_blkatoff) __P((struct vnode *, off_t, char **, struct buf **)); 91 int (*um_truncate) __P((struct vnode *, off_t, int, struct ucred *, struct proc *)); 92 int (*um_update) __P((struct vnode *, int)); 93 int (*um_valloc) __P((struct vnode *, int, struct ucred *, struct vnode **)); 94 int (*um_vfree) __P((struct vnode *, ino_t, int)); 95}; 96 97#define UFS_BALLOC(aa, bb, cc, dd, ee, ff) VFSTOUFS((aa)->v_mount)->um_balloc(aa, bb, cc, dd, ee, ff) 98#define UFS_BLKATOFF(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd) 99#define UFS_TRUNCATE(aa, bb, cc, dd, ee) VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd, ee) 100#define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb) 101#define UFS_VALLOC(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd) 102#define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc) 103 104/* 105 * Flags describing the state of quotas. 106 */ 107#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 108#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 109 110/* Convert mount ptr to ufsmount ptr. */ 111#define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) 112 113/* 114 * Macros to access file system parameters in the ufsmount structure. 115 * Used by ufs_bmap. 116 */ 117#define MNINDIR(ump) ((ump)->um_nindir) 118#define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 119#define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc) 120#endif /* _KERNEL */ 121 122#endif 123