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: src/sys/ufs/ufs/ufsmount.h,v 1.17 1999/12/29 04:55:06 peter Exp $ 35 * $DragonFly: src/sys/vfs/ufs/ufsmount.h,v 1.6 2004/11/12 00:09:52 dillon Exp $ 36 */ 37 38 #ifndef _UFS_UFS_UFSMOUNT_H_ 39 #define _UFS_UFS_UFSMOUNT_H_ 40 41 /* 42 * Arguments to mount UFS-based filesystems 43 */ 44 struct ufs_args { 45 char *fspec; /* block special device to mount */ 46 struct export_args export; /* network export information */ 47 }; 48 49 /* 50 * Arguments to mount MFS 51 */ 52 struct mfs_args { 53 char *fspec; /* name to export for statfs */ 54 struct export_args export; /* if exported MFSes are supported */ 55 caddr_t base; /* base of filesystem in memory */ 56 u_long size; /* size of filesystem */ 57 }; 58 59 #ifdef _KERNEL 60 61 #ifdef MALLOC_DECLARE 62 MALLOC_DECLARE(M_UFSMNT); 63 #endif 64 65 struct buf; 66 struct inode; 67 struct timeval; 68 struct ucred; 69 struct uio; 70 struct vnode; 71 struct netexport; 72 73 /* This structure describes the UFS specific mount structure data. */ 74 struct 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 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */ 87 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */ 88 u_long um_nindir; /* indirect ptrs per block */ 89 u_long um_bptrtodb; /* indir ptr to disk block */ 90 u_long um_seqinc; /* inc between seq blocks */ 91 time_t um_btime[MAXQUOTAS]; /* block quota time limit */ 92 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */ 93 char um_qflags[MAXQUOTAS]; /* quota specific flags */ 94 struct netexport um_export; /* export information */ 95 int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */ 96 struct malloc_type *um_malloctype; /* The inodes malloctype */ 97 int um_i_effnlink_valid; /* i_effnlink valid? */ 98 int (*um_blkatoff) (struct vnode *, off_t, char **, struct buf **); 99 int (*um_truncate) (struct vnode *, off_t, int, struct ucred *, 100 struct thread *); 101 int (*um_update) (struct vnode *, int); 102 int (*um_valloc) (struct vnode *, int, struct ucred *, struct vnode **); 103 int (*um_vfree) (struct vnode *, ino_t, int); 104 }; 105 106 #define UFS_BLKATOFF(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd) 107 #define UFS_TRUNCATE(aa, bb, cc, dd, ee) VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd, ee) 108 #define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb) 109 #define UFS_VALLOC(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd) 110 #define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc) 111 112 /* 113 * Flags describing the state of quotas. 114 */ 115 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 116 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 117 118 /* Convert mount ptr to ufsmount ptr. */ 119 #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) 120 121 /* 122 * Macros to access filesystem parameters in the ufsmount structure. 123 * Used by ufs_bmap. 124 */ 125 #define MNINDIR(ump) ((ump)->um_nindir) 126 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 127 #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc) 128 #endif /* _KERNEL */ 129 130 #endif /* !_UFS_UFS_UFSMOUNT_H_ */ 131