ulfsmount.h revision 1.6
1 /* $NetBSD: ulfsmount.h,v 1.6 2013/06/06 01:25:25 dholland Exp $ */ 2 /* from NetBSD: ufsmount.h,v 1.39 2012/10/19 17:09:08 drochner Exp */ 3 4 /* 5 * Copyright (c) 1982, 1986, 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95 33 */ 34 35 #ifndef _UFS_LFS_ULFSMOUNT_H_ 36 #define _UFS_LFS_ULFSMOUNT_H_ 37 38 #include <sys/mount.h> /* struct export_args30 */ 39 40 /* 41 * Arguments to mount ULFS-based filesystems 42 */ 43 struct ulfs_args { 44 char *fspec; /* block special device to mount */ 45 }; 46 47 #ifdef _KERNEL 48 49 #if defined(_KERNEL_OPT) 50 #include "opt_lfs.h" 51 #endif 52 53 #include <sys/mutex.h> 54 55 #include <ufs/lfs/ulfs_extattr.h> 56 #include <ufs/lfs/ulfs_quotacommon.h> 57 58 struct buf; 59 struct inode; 60 struct nameidata; 61 struct timeval; 62 struct uio; 63 struct vnode; 64 65 /* This structure describes the ULFS specific mount structure data. */ 66 struct ulfsmount { 67 struct mount *um_mountp; /* filesystem vfs structure */ 68 dev_t um_dev; /* device mounted */ 69 struct vnode *um_devvp; /* block device mounted vnode */ 70 u_long um_fstype; 71 u_int32_t um_flags; /* ULFS-specific flags - see below */ 72 union { /* pointer to superblock */ 73 struct lfs *lfs; /* LFS */ 74 } ulfsmount_u; 75 #define um_lfs ulfsmount_u.lfs 76 77 /* Extended attribute information. */ 78 struct ulfs_extattr_per_mount um_extattr; 79 80 struct vnode *um_quotas[ULFS_MAXQUOTAS]; /* pointer to quota files */ 81 kauth_cred_t um_cred[ULFS_MAXQUOTAS]; /* quota file access cred */ 82 u_long um_nindir; /* indirect ptrs per block */ 83 u_long um_lognindir; /* log2 of um_nindir */ 84 u_long um_bptrtodb; /* indir ptr to disk block */ 85 u_long um_seqinc; /* inc between seq blocks */ 86 kmutex_t um_lock; /* lock on global data */ 87 union { 88 struct um_q1 { 89 time_t q1_btime[ULFS_MAXQUOTAS]; /* block quota time limit */ 90 time_t q1_itime[ULFS_MAXQUOTAS]; /* inode quota time limit */ 91 char q1_qflags[ULFS_MAXQUOTAS]; /* quota specific flags */ 92 } um_q1; 93 struct um_q2 { 94 uint64_t q2_bsize; /* block size of quota file */ 95 uint64_t q2_bmask; /* mask for above */ 96 } um_q2; 97 } um_q; 98 #define umq1_btime um_q.um_q1.q1_btime 99 #define umq1_itime um_q.um_q1.q1_itime 100 #define umq1_qflags um_q.um_q1.q1_qflags 101 #define umq2_bsize um_q.um_q2.q2_bsize 102 #define umq2_bmask um_q.um_q2.q2_bmask 103 104 void *um_oldfscompat; /* save 4.2 rotbl */ 105 int um_maxsymlinklen; 106 int um_dirblksiz; 107 u_int64_t um_maxfilesize; 108 void *um_snapinfo; /* snapshot private data */ 109 110 const struct ulfs_ops *um_ops; 111 112 void *um_discarddata; 113 }; 114 115 struct ulfs_ops { 116 void (*uo_itimes)(struct inode *ip, const struct timespec *, 117 const struct timespec *, const struct timespec *); 118 int (*uo_update)(struct vnode *, const struct timespec *, 119 const struct timespec *, int); 120 int (*uo_truncate)(struct vnode *, off_t, int, kauth_cred_t); 121 int (*uo_valloc)(struct vnode *, int, kauth_cred_t, struct vnode **); 122 int (*uo_vfree)(struct vnode *, ino_t, int); 123 int (*uo_balloc)(struct vnode *, off_t, int, kauth_cred_t, int, 124 struct buf **); 125 void (*uo_unmark_vnode)(struct vnode *); 126 }; 127 128 #define ULFS_OPS(vp) (VFSTOULFS((vp)->v_mount)->um_ops) 129 130 #define ULFS_ITIMES(vp, acc, mod, cre) \ 131 (*ULFS_OPS(vp)->uo_itimes)(VTOI(vp), (acc), (mod), (cre)) 132 #define ULFS_UPDATE(vp, acc, mod, flags) \ 133 (*ULFS_OPS(vp)->uo_update)((vp), (acc), (mod), (flags)) 134 #define ULFS_TRUNCATE(vp, off, flags, cr) \ 135 (*ULFS_OPS(vp)->uo_truncate)((vp), (off), (flags), (cr)) 136 #define ULFS_VALLOC(vp, mode, cr, vpp) \ 137 (*ULFS_OPS(vp)->uo_valloc)((vp), (mode), (cr), (vpp)) 138 #define ULFS_VFREE(vp, ino, mode) \ 139 (*ULFS_OPS(vp)->uo_vfree)((vp), (ino), (mode)) 140 #define ULFS_BALLOC(vp, off, size, cr, flags, bpp) \ 141 (*ULFS_OPS(vp)->uo_balloc)((vp), (off), (size), (cr), (flags), (bpp)) 142 #define ULFS_UNMARK_VNODE(vp) \ 143 (*ULFS_OPS(vp)->uo_unmark_vnode)((vp)) 144 145 /* ULFS-specific flags */ 146 #define ULFS_NEEDSWAP 0x01 /* filesystem metadata need byte-swapping */ 147 /* unused 0x02 */ 148 #define ULFS_QUOTA 0x04 /* filesystem has QUOTA (v1) */ 149 #define ULFS_QUOTA2 0x08 /* filesystem has QUOTA2 */ 150 151 /* 152 * Filesystem types 153 */ 154 #define ULFS1 1 155 #define ULFS2 2 156 157 158 /* 159 * Flags describing the state of quotas. 160 */ 161 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 162 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 163 164 /* Convert mount ptr to ulfsmount ptr. */ 165 #define VFSTOULFS(mp) ((struct ulfsmount *)((mp)->mnt_data)) 166 167 /* 168 * Macros to access file system parameters in the ulfsmount structure. 169 * Used by ulfs_bmap. 170 */ 171 #define MNINDIR(ump) ((ump)->um_nindir) 172 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 173 174 /* 175 * Predicate for byte-swapping support. 176 */ 177 #define FSFMT(vp) (((vp)->v_mount->mnt_iflag & IMNT_DTYPE) == 0) 178 179 #endif /* _KERNEL */ 180 181 #endif /* !_UFS_LFS_ULFSMOUNT_H_ */ 182
Indexes created Fri Oct 03 02:09:57 GMT 2025