ulfsmount.h revision 1.7.2.2
1 /* $NetBSD: ulfsmount.h,v 1.7.2.2 2013/06/23 06:18:39 tls 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 #ifdef _KERNEL 41 42 #if defined(_KERNEL_OPT) 43 #include "opt_lfs.h" 44 #endif 45 46 #include <sys/mutex.h> 47 48 #include <ufs/lfs/ulfs_extattr.h> 49 #include <ufs/lfs/ulfs_quotacommon.h> 50 51 struct buf; 52 struct inode; 53 struct nameidata; 54 struct timeval; 55 struct uio; 56 struct vnode; 57 58 /* This structure describes the ULFS specific mount structure data. */ 59 struct ulfsmount { 60 struct mount *um_mountp; /* filesystem vfs structure */ 61 dev_t um_dev; /* device mounted */ 62 struct vnode *um_devvp; /* block device mounted vnode */ 63 u_long um_fstype; 64 u_int32_t um_flags; /* ULFS-specific flags - see below */ 65 union { /* pointer to superblock */ 66 struct lfs *lfs; /* LFS */ 67 } ulfsmount_u; 68 #define um_lfs ulfsmount_u.lfs 69 70 /* Extended attribute information. */ 71 struct ulfs_extattr_per_mount um_extattr; 72 73 struct vnode *um_quotas[ULFS_MAXQUOTAS]; /* pointer to quota files */ 74 kauth_cred_t um_cred[ULFS_MAXQUOTAS]; /* quota file access cred */ 75 u_long um_nindir; /* indirect ptrs per block */ 76 u_long um_lognindir; /* log2 of um_nindir */ 77 u_long um_bptrtodb; /* indir ptr to disk block */ 78 u_long um_seqinc; /* inc between seq blocks */ 79 kmutex_t um_lock; /* lock on global data */ 80 union { 81 struct um_q1 { 82 time_t q1_btime[ULFS_MAXQUOTAS]; /* block quota time limit */ 83 time_t q1_itime[ULFS_MAXQUOTAS]; /* inode quota time limit */ 84 char q1_qflags[ULFS_MAXQUOTAS]; /* quota specific flags */ 85 } um_q1; 86 struct um_q2 { 87 uint64_t q2_bsize; /* block size of quota file */ 88 uint64_t q2_bmask; /* mask for above */ 89 } um_q2; 90 } um_q; 91 #define umq1_btime um_q.um_q1.q1_btime 92 #define umq1_itime um_q.um_q1.q1_itime 93 #define umq1_qflags um_q.um_q1.q1_qflags 94 #define umq2_bsize um_q.um_q2.q2_bsize 95 #define umq2_bmask um_q.um_q2.q2_bmask 96 97 void *um_oldfscompat; /* save 4.2 rotbl */ 98 int um_maxsymlinklen; 99 int um_dirblksiz; 100 u_int64_t um_maxfilesize; 101 void *um_snapinfo; /* snapshot private data */ 102 103 const struct ulfs_ops *um_ops; 104 105 void *um_discarddata; 106 }; 107 108 struct ulfs_ops { 109 void (*uo_itimes)(struct inode *ip, const struct timespec *, 110 const struct timespec *, const struct timespec *); 111 int (*uo_update)(struct vnode *, const struct timespec *, 112 const struct timespec *, int); 113 int (*uo_truncate)(struct vnode *, off_t, int, kauth_cred_t); 114 int (*uo_valloc)(struct vnode *, int, kauth_cred_t, struct vnode **); 115 int (*uo_vfree)(struct vnode *, ino_t, int); 116 int (*uo_balloc)(struct vnode *, off_t, int, kauth_cred_t, int, 117 struct buf **); 118 void (*uo_unmark_vnode)(struct vnode *); 119 }; 120 121 #define ULFS_OPS(vp) (VFSTOULFS((vp)->v_mount)->um_ops) 122 123 #define ULFS_ITIMES(vp, acc, mod, cre) \ 124 (*ULFS_OPS(vp)->uo_itimes)(VTOI(vp), (acc), (mod), (cre)) 125 #define ULFS_UPDATE(vp, acc, mod, flags) \ 126 (*ULFS_OPS(vp)->uo_update)((vp), (acc), (mod), (flags)) 127 #define ULFS_TRUNCATE(vp, off, flags, cr) \ 128 (*ULFS_OPS(vp)->uo_truncate)((vp), (off), (flags), (cr)) 129 #define ULFS_VALLOC(vp, mode, cr, vpp) \ 130 (*ULFS_OPS(vp)->uo_valloc)((vp), (mode), (cr), (vpp)) 131 #define ULFS_VFREE(vp, ino, mode) \ 132 (*ULFS_OPS(vp)->uo_vfree)((vp), (ino), (mode)) 133 #define ULFS_BALLOC(vp, off, size, cr, flags, bpp) \ 134 (*ULFS_OPS(vp)->uo_balloc)((vp), (off), (size), (cr), (flags), (bpp)) 135 #define ULFS_UNMARK_VNODE(vp) \ 136 (*ULFS_OPS(vp)->uo_unmark_vnode)((vp)) 137 138 /* ULFS-specific flags */ 139 #define ULFS_NEEDSWAP 0x01 /* filesystem metadata need byte-swapping */ 140 /* unused 0x02 */ 141 #define ULFS_QUOTA 0x04 /* filesystem has QUOTA (v1) */ 142 #define ULFS_QUOTA2 0x08 /* filesystem has QUOTA2 */ 143 144 /* 145 * Filesystem types 146 */ 147 #define ULFS1 1 148 #define ULFS2 2 149 150 151 /* 152 * Flags describing the state of quotas. 153 */ 154 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 155 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 156 157 /* Convert mount ptr to ulfsmount ptr. */ 158 #define VFSTOULFS(mp) ((struct ulfsmount *)((mp)->mnt_data)) 159 160 /* 161 * Macros to access file system parameters in the ulfsmount structure. 162 * Used by ulfs_bmap. 163 */ 164 #define MNINDIR(ump) ((ump)->um_nindir) 165 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 166 167 /* 168 * Predicate for byte-swapping support. 169 */ 170 #define FSFMT(vp) (((vp)->v_mount->mnt_iflag & IMNT_DTYPE) == 0) 171 172 #endif /* _KERNEL */ 173 174 #endif /* !_UFS_LFS_ULFSMOUNT_H_ */ 175
Indexes created Sun Nov 02 07:10:05 GMT 2025