1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1982, 1986, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95 32 * $FreeBSD$ 33 */ 34 35 #ifndef _UFS_UFS_UFSMOUNT_H_ 36 #define _UFS_UFS_UFSMOUNT_H_ 37 38 /* 39 * Arguments to mount UFS-based filesystems 40 */ 41 struct ufs_args { 42 char *fspec; /* block special device to mount */ 43 struct oexport_args export; /* network export information */ 44 }; 45 46 #ifdef _KERNEL 47 48 #ifdef MALLOC_DECLARE 49 MALLOC_DECLARE(M_UFSMNT); 50 MALLOC_DECLARE(M_TRIM); 51 #endif 52 53 struct buf; 54 struct inode; 55 struct nameidata; 56 struct taskqueue; 57 struct timeval; 58 struct ucred; 59 struct uio; 60 struct vnode; 61 struct ufs_extattr_per_mount; 62 struct jblocks; 63 struct inodedep; 64 65 TAILQ_HEAD(inodedeplst, inodedep); 66 LIST_HEAD(bmsafemaphd, bmsafemap); 67 LIST_HEAD(trimlist_hashhead, ffs_blkfree_trim_params); 68 69 /* 70 * This structure describes the UFS specific mount structure data. 71 * The function operators are used to support different versions of 72 * UFS (UFS1, UFS2, etc). 73 * 74 * Lock reference: 75 * c - set at allocation then constant until freed 76 * i - ufsmount interlock (UFS_LOCK / UFS_UNLOCK) 77 * q - associated quota file is locked 78 * r - ref to parent mount structure is held (vfs_busy / vfs_unbusy) 79 * u - managed by user process fsck_ufs 80 */ 81 struct ufsmount { 82 struct mount *um_mountp; /* (r) filesystem vfs struct */ 83 struct cdev *um_dev; /* (r) device mounted */ 84 struct g_consumer *um_cp; /* (r) GEOM access point */ 85 struct bufobj *um_bo; /* (r) Buffer cache object */ 86 struct vnode *um_devvp; /* (r) blk dev mounted vnode */ 87 u_long um_fstype; /* (c) type of filesystem */ 88 struct fs *um_fs; /* (r) pointer to superblock */ 89 struct ufs_extattr_per_mount um_extattr; /* (c) extended attrs */ 90 u_long um_nindir; /* (c) indirect ptrs per blk */ 91 u_long um_bptrtodb; /* (c) indir disk block ptr */ 92 u_long um_seqinc; /* (c) inc between seq blocks */ 93 struct mtx um_lock; /* (c) Protects ufsmount & fs */ 94 pid_t um_fsckpid; /* (u) PID can do fsck sysctl */ 95 struct mount_softdeps *um_softdep; /* (c) softdep mgmt structure */ 96 struct vnode *um_quotas[MAXQUOTAS]; /* (q) pointer to quota files */ 97 struct ucred *um_cred[MAXQUOTAS]; /* (q) quota file access cred */ 98 time_t um_btime[MAXQUOTAS]; /* (q) block quota time limit */ 99 time_t um_itime[MAXQUOTAS]; /* (q) inode quota time limit */ 100 char um_qflags[MAXQUOTAS]; /* (i) quota specific flags */ 101 int64_t um_savedmaxfilesize; /* (c) track maxfilesize */ 102 u_int um_flags; /* (i) filesystem flags */ 103 struct timeval um_last_fullmsg; /* (i) last full msg time */ 104 int um_secs_fullmsg; /* (i) seconds since full msg */ 105 struct timeval um_last_integritymsg; /* (i) last integrity msg */ 106 int um_secs_integritymsg; /* (i) secs since integ msg */ 107 u_int um_trim_inflight; /* (i) outstanding trim count */ 108 u_int um_trim_inflight_blks; /* (i) outstanding trim blks */ 109 u_long um_trim_total; /* (i) total trim count */ 110 u_long um_trim_total_blks; /* (i) total trim block count */ 111 struct taskqueue *um_trim_tq; /* (c) trim request queue */ 112 struct trimlist_hashhead *um_trimhash; /* (i) trimlist hash table */ 113 u_long um_trimlisthashsize; /* (i) trim hash table size-1 */ 114 /* (c) - below function ptrs */ 115 int (*um_balloc)(struct vnode *, off_t, int, struct ucred *, 116 int, struct buf **); 117 int (*um_blkatoff)(struct vnode *, off_t, char **, struct buf **); 118 int (*um_truncate)(struct vnode *, off_t, int, struct ucred *); 119 int (*um_update)(struct vnode *, int); 120 int (*um_valloc)(struct vnode *, int, struct ucred *, 121 struct vnode **); 122 int (*um_vfree)(struct vnode *, ino_t, int); 123 void (*um_ifree)(struct ufsmount *, struct inode *); 124 int (*um_rdonly)(struct inode *); 125 void (*um_snapgone)(struct inode *); 126 int (*um_check_blkno)(struct mount *, ino_t, daddr_t, int); 127 }; 128 129 /* 130 * filesystem flags 131 */ 132 #define UM_CANDELETE 0x00000001 /* devvp supports TRIM */ 133 #define UM_WRITESUSPENDED 0x00000002 /* suspension in progress */ 134 135 /* 136 * function prototypes 137 */ 138 #define UFS_BALLOC(aa, bb, cc, dd, ee, ff) \ 139 VFSTOUFS((aa)->v_mount)->um_balloc(aa, bb, cc, dd, ee, ff) 140 #define UFS_BLKATOFF(aa, bb, cc, dd) \ 141 VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd) 142 #define UFS_TRUNCATE(aa, bb, cc, dd) \ 143 VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd) 144 #define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb) 145 #define UFS_VALLOC(aa, bb, cc, dd) \ 146 VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd) 147 #define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc) 148 #define UFS_IFREE(aa, bb) ((aa)->um_ifree(aa, bb)) 149 #define UFS_RDONLY(aa) (ITOUMP(aa)->um_rdonly(aa)) 150 #define UFS_SNAPGONE(aa) (ITOUMP(aa)->um_snapgone(aa)) 151 #define UFS_CHECK_BLKNO(aa, bb, cc, dd) \ 152 (VFSTOUFS(aa)->um_check_blkno == NULL ? 0 : \ 153 VFSTOUFS(aa)->um_check_blkno(aa, bb, cc, dd)) 154 155 #define UFS_LOCK(aa) mtx_lock(&(aa)->um_lock) 156 #define UFS_UNLOCK(aa) mtx_unlock(&(aa)->um_lock) 157 #define UFS_MTX(aa) (&(aa)->um_lock) 158 159 /* 160 * Filesystem types 161 */ 162 #define UFS1 1 163 #define UFS2 2 164 165 /* 166 * Flags describing the state of quotas. 167 */ 168 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 169 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 170 #define QTF_64BIT 0x04 /* 64-bit quota file */ 171 172 /* Convert mount ptr to ufsmount ptr. */ 173 #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) 174 #define UFSTOVFS(ump) (ump)->um_mountp 175 176 /* 177 * Macros to access filesystem parameters in the ufsmount structure. 178 * Used by ufs_bmap. 179 */ 180 #define MNINDIR(ump) ((ump)->um_nindir) 181 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 182 #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc) 183 #endif /* _KERNEL */ 184 185 #endif 186