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 * $FreeBSD$ 31 */ 32 33 #ifndef _UFS_UFS_UFSMOUNT_H_ 34 #define _UFS_UFS_UFSMOUNT_H_ 35 36 /* 37 * Arguments to mount UFS-based filesystems 38 */ 39 struct ufs_args { 40 char *fspec; /* block special device to mount */ 41 struct oexport_args export; /* network export information */ 42 }; 43 44 #ifdef _KERNEL 45 46 #ifdef MALLOC_DECLARE 47 MALLOC_DECLARE(M_UFSMNT); 48 #endif 49 50 struct buf; 51 struct inode; 52 struct nameidata; 53 struct timeval; 54 struct ucred; 55 struct uio; 56 struct vnode; 57 struct ufs_extattr_per_mount; 58 struct jblocks; 59 struct inodedep; 60 61 TAILQ_HEAD(inodedeplst, inodedep); 62 LIST_HEAD(bmsafemaphd, bmsafemap); 63 64 /* This structure describes the UFS specific mount structure data. */ 65 struct ufsmount { 66 struct mount *um_mountp; /* filesystem vfs structure */ 67 struct cdev *um_dev; /* device mounted */ 68 struct g_consumer *um_cp; 69 struct bufobj *um_bo; /* Buffer cache object */ 70 struct vnode *um_devvp; /* block device mounted vnode */ 71 u_long um_fstype; /* type of filesystem */ 72 struct fs *um_fs; /* pointer to superblock */ 73 struct ufs_extattr_per_mount um_extattr; /* extended attrs */ 74 u_long um_nindir; /* indirect ptrs per block */ 75 u_long um_bptrtodb; /* indir ptr to disk block */ 76 u_long um_seqinc; /* inc between seq blocks */ 77 struct mtx um_lock; /* Protects ufsmount & fs */ 78 pid_t um_fsckpid; /* PID permitted fsck sysctls */ 79 struct mount_softdeps *um_softdep; /* softdep mgmt structure */ 80 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */ 81 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */ 82 time_t um_btime[MAXQUOTAS]; /* block quota time limit */ 83 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */ 84 char um_qflags[MAXQUOTAS]; /* quota specific flags */ 85 int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */ 86 int um_candelete; /* devvp supports TRIM */ 87 int um_writesuspended; /* suspension in progress */ 88 int (*um_balloc)(struct vnode *, off_t, int, struct ucred *, int, struct buf **); 89 int (*um_blkatoff)(struct vnode *, off_t, char **, struct buf **); 90 int (*um_truncate)(struct vnode *, off_t, int, struct ucred *); 91 int (*um_update)(struct vnode *, int); 92 int (*um_valloc)(struct vnode *, int, struct ucred *, struct vnode **); 93 int (*um_vfree)(struct vnode *, ino_t, int); 94 void (*um_ifree)(struct ufsmount *, struct inode *); 95 int (*um_rdonly)(struct inode *); 96 void (*um_snapgone)(struct inode *); 97 }; 98 99 #define UFS_BALLOC(aa, bb, cc, dd, ee, ff) VFSTOUFS((aa)->v_mount)->um_balloc(aa, bb, cc, dd, ee, ff) 100 #define UFS_BLKATOFF(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd) 101 #define UFS_TRUNCATE(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd) 102 #define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb) 103 #define UFS_VALLOC(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd) 104 #define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc) 105 #define UFS_IFREE(aa, bb) ((aa)->um_ifree(aa, bb)) 106 #define UFS_RDONLY(aa) ((aa)->i_ump->um_rdonly(aa)) 107 #define UFS_SNAPGONE(aa) ((aa)->i_ump->um_snapgone(aa)) 108 109 #define UFS_LOCK(aa) mtx_lock(&(aa)->um_lock) 110 #define UFS_UNLOCK(aa) mtx_unlock(&(aa)->um_lock) 111 #define UFS_MTX(aa) (&(aa)->um_lock) 112 113 /* 114 * Filesystem types 115 */ 116 #define UFS1 1 117 #define UFS2 2 118 119 /* 120 * Flags describing the state of quotas. 121 */ 122 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 123 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 124 #define QTF_64BIT 0x04 /* 64-bit quota file */ 125 126 /* Convert mount ptr to ufsmount ptr. */ 127 #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) 128 #define UFSTOVFS(ump) (ump)->um_mountp 129 130 /* 131 * Macros to access filesystem parameters in the ufsmount structure. 132 * Used by ufs_bmap. 133 */ 134 #define MNINDIR(ump) ((ump)->um_nindir) 135 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 136 #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc) 137 #endif /* _KERNEL */ 138 139 #endif 140