ufsmount.h revision 297787
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: stable/10/sys/ufs/ufs/ufsmount.h 297787 2016-04-10 16:32:21Z kib $ 31 */ 32 33#ifndef _UFS_UFS_UFSMOUNT_H_ 34#define _UFS_UFS_UFSMOUNT_H_ 35 36#include <sys/buf.h> /* XXX For struct workhead. */ 37 38/* 39 * Arguments to mount UFS-based filesystems 40 */ 41struct 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 49MALLOC_DECLARE(M_UFSMNT); 50#endif 51 52struct buf; 53struct inode; 54struct nameidata; 55struct taskqueue; 56struct timeval; 57struct ucred; 58struct uio; 59struct vnode; 60struct ufs_extattr_per_mount; 61struct jblocks; 62struct inodedep; 63 64TAILQ_HEAD(inodedeplst, inodedep); 65LIST_HEAD(bmsafemaphd, bmsafemap); 66 67/* This structure describes the UFS specific mount structure data. */ 68struct ufsmount { 69 struct mount *um_mountp; /* filesystem vfs structure */ 70 struct cdev *um_dev; /* device mounted */ 71 struct g_consumer *um_cp; 72 struct bufobj *um_bo; /* Buffer cache object */ 73 struct vnode *um_devvp; /* block device mounted vnode */ 74 u_long um_fstype; /* type of filesystem */ 75 struct fs *um_fs; /* pointer to superblock */ 76 struct ufs_extattr_per_mount um_extattr; /* extended attrs */ 77 u_long um_nindir; /* indirect ptrs per block */ 78 u_long um_bptrtodb; /* indir ptr to disk block */ 79 u_long um_seqinc; /* inc between seq blocks */ 80 struct mtx um_lock; /* Protects ufsmount & fs */ 81 pid_t um_fsckpid; /* PID permitted fsck sysctls */ 82 struct mount_softdeps *um_softdep; /* softdep mgmt structure */ 83 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */ 84 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */ 85 time_t um_btime[MAXQUOTAS]; /* block quota time limit */ 86 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */ 87 char um_qflags[MAXQUOTAS]; /* quota specific flags */ 88 int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */ 89 int um_candelete; /* devvp supports TRIM */ 90 int um_writesuspended; /* suspension in progress */ 91 u_int um_trim_inflight; 92 struct taskqueue *um_trim_tq; 93 int (*um_balloc)(struct vnode *, off_t, int, struct ucred *, 94 int, struct buf **); 95 int (*um_blkatoff)(struct vnode *, off_t, char **, struct buf **); 96 int (*um_truncate)(struct vnode *, off_t, int, struct ucred *); 97 int (*um_update)(struct vnode *, int); 98 int (*um_valloc)(struct vnode *, int, struct ucred *, 99 struct vnode **); 100 int (*um_vfree)(struct vnode *, ino_t, int); 101 void (*um_ifree)(struct ufsmount *, struct inode *); 102 int (*um_rdonly)(struct inode *); 103 void (*um_snapgone)(struct inode *); 104}; 105 106#define UFS_BALLOC(aa, bb, cc, dd, ee, ff) VFSTOUFS((aa)->v_mount)->um_balloc(aa, bb, cc, dd, ee, ff) 107#define UFS_BLKATOFF(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd) 108#define UFS_TRUNCATE(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd) 109#define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb) 110#define UFS_VALLOC(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd) 111#define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc) 112#define UFS_IFREE(aa, bb) ((aa)->um_ifree(aa, bb)) 113#define UFS_RDONLY(aa) ((aa)->i_ump->um_rdonly(aa)) 114#define UFS_SNAPGONE(aa) ((aa)->i_ump->um_snapgone(aa)) 115 116#define UFS_LOCK(aa) mtx_lock(&(aa)->um_lock) 117#define UFS_UNLOCK(aa) mtx_unlock(&(aa)->um_lock) 118#define UFS_MTX(aa) (&(aa)->um_lock) 119 120/* 121 * Filesystem types 122 */ 123#define UFS1 1 124#define UFS2 2 125 126/* 127 * Flags describing the state of quotas. 128 */ 129#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 130#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 131#define QTF_64BIT 0x04 /* 64-bit quota file */ 132 133/* Convert mount ptr to ufsmount ptr. */ 134#define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) 135#define UFSTOVFS(ump) (ump)->um_mountp 136 137/* 138 * Macros to access filesystem parameters in the ufsmount structure. 139 * Used by ufs_bmap. 140 */ 141#define MNINDIR(ump) ((ump)->um_nindir) 142#define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 143#define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc) 144#endif /* _KERNEL */ 145 146#endif 147