ufsmount.h revision 140700
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 * 4. 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: head/sys/ufs/ufs/ufsmount.h 140700 2005-01-24 10:01:10Z jeff $ 31 */ 32 33#ifndef _UFS_UFS_UFSMOUNT_H_ 34#define _UFS_UFS_UFSMOUNT_H_ 35 36/* 37 * Arguments to mount UFS-based filesystems 38 */ 39struct ufs_args { 40 char *fspec; /* block special device to mount */ 41 struct export_args export; /* network export information */ 42}; 43 44#ifdef _KERNEL 45 46#ifdef MALLOC_DECLARE 47MALLOC_DECLARE(M_UFSMNT); 48#endif 49 50struct buf; 51struct inode; 52struct nameidata; 53struct timeval; 54struct ucred; 55struct uio; 56struct vnode; 57struct ufs_extattr_per_mount; 58 59/* This structure describes the UFS specific mount structure data. */ 60struct ufsmount { 61 struct mount *um_mountp; /* filesystem vfs structure */ 62 struct cdev *um_dev; /* device mounted */ 63 struct g_consumer *um_cp; 64 struct bufobj *um_bo; /* Buffer cache object */ 65 struct vnode *um_devvp; /* block device mounted vnode */ 66 u_long um_fstype; /* type of filesystem */ 67 struct fs *um_fs; /* pointer to superblock */ 68 struct ufs_extattr_per_mount um_extattr; /* extended attrs */ 69 u_long um_nindir; /* indirect ptrs per block */ 70 u_long um_bptrtodb; /* indir ptr to disk block */ 71 u_long um_seqinc; /* inc between seq blocks */ 72 struct mtx um_lock; /* Protects ufsmount & fs */ 73 long um_numindirdeps; /* outstanding indirdeps */ 74 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */ 75 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */ 76 time_t um_btime[MAXQUOTAS]; /* block quota time limit */ 77 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */ 78 char um_qflags[MAXQUOTAS]; /* quota specific flags */ 79 int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */ 80 int (*um_balloc)(struct vnode *, off_t, int, struct ucred *, int, struct buf **); 81 int (*um_blkatoff)(struct vnode *, off_t, char **, struct buf **); 82 int (*um_truncate)(struct vnode *, off_t, int, struct ucred *, struct thread *); 83 int (*um_update)(struct vnode *, int); 84 int (*um_valloc)(struct vnode *, int, struct ucred *, struct vnode **); 85 int (*um_vfree)(struct vnode *, ino_t, int); 86 void (*um_ifree)(struct ufsmount *, struct inode *); 87}; 88 89#define UFS_BALLOC(aa, bb, cc, dd, ee, ff) VFSTOUFS((aa)->v_mount)->um_balloc(aa, bb, cc, dd, ee, ff) 90#define UFS_BLKATOFF(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd) 91#define UFS_TRUNCATE(aa, bb, cc, dd, ee) VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd, ee) 92#define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb) 93#define UFS_VALLOC(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd) 94#define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc) 95#define UFS_IFREE(aa, bb) ((aa)->um_ifree(aa, bb)) 96 97#define UFS_LOCK(aa) mtx_lock(&(aa)->um_lock) 98#define UFS_UNLOCK(aa) mtx_unlock(&(aa)->um_lock) 99#define UFS_MTX(aa) (&(aa)->um_lock) 100 101/* 102 * Filesystem types 103 */ 104#define UFS1 1 105#define UFS2 2 106 107/* 108 * Flags describing the state of quotas. 109 */ 110#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 111#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 112 113/* Convert mount ptr to ufsmount ptr. */ 114#define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) 115 116/* 117 * Macros to access filesystem parameters in the ufsmount structure. 118 * Used by ufs_bmap. 119 */ 120#define MNINDIR(ump) ((ump)->um_nindir) 121#define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 122#define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc) 123#endif /* _KERNEL */ 124 125#endif 126