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/*-
* Copyright (c) 1982, 1986, 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
* $FreeBSD: release/9.1.0/sys/ufs/ufs/ufsmount.h 224061 2011-07-15 16:20:33Z mckusick $
*/
#ifndef _UFS_UFS_UFSMOUNT_H_
#define _UFS_UFS_UFSMOUNT_H_
#include <sys/buf.h> /* XXX For struct workhead. */
/*
* Arguments to mount UFS-based filesystems
*/
struct ufs_args {
char *fspec; /* block special device to mount */
struct oexport_args export; /* network export information */
};
#ifdef _KERNEL
#ifdef MALLOC_DECLARE
MALLOC_DECLARE(M_UFSMNT);
#endif
struct buf;
struct inode;
struct nameidata;
struct timeval;
struct ucred;
struct uio;
struct vnode;
struct ufs_extattr_per_mount;
struct jblocks;
struct inodedep;
TAILQ_HEAD(inodedeplst, inodedep);
LIST_HEAD(bmsafemaphd, bmsafemap);
/* This structure describes the UFS specific mount structure data. */
struct ufsmount {
struct mount *um_mountp; /* filesystem vfs structure */
struct cdev *um_dev; /* device mounted */
struct g_consumer *um_cp;
struct bufobj *um_bo; /* Buffer cache object */
struct vnode *um_devvp; /* block device mounted vnode */
u_long um_fstype; /* type of filesystem */
struct fs *um_fs; /* pointer to superblock */
struct ufs_extattr_per_mount um_extattr; /* extended attrs */
u_long um_nindir; /* indirect ptrs per block */
u_long um_bptrtodb; /* indir ptr to disk block */
u_long um_seqinc; /* inc between seq blocks */
struct mtx um_lock; /* Protects ufsmount & fs */
pid_t um_fsckpid; /* PID permitted fsck sysctls */
long um_numindirdeps; /* outstanding indirdeps */
struct workhead softdep_workitem_pending; /* softdep work queue */
struct worklist *softdep_worklist_tail; /* Tail pointer for above */
struct workhead softdep_journal_pending; /* journal work queue */
struct worklist *softdep_journal_tail; /* Tail pointer for above */
struct jblocks *softdep_jblocks; /* Journal block information */
struct inodedeplst softdep_unlinked; /* Unlinked inodes */
struct bmsafemaphd softdep_dirtycg; /* Dirty CGs */
int softdep_on_journal; /* Items on the journal list */
int softdep_on_worklist; /* Items on the worklist */
int softdep_deps; /* Total dependency count */
int softdep_accdeps; /* accumulated dep count */
int softdep_req; /* Wakeup when deps hits 0. */
struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */
time_t um_btime[MAXQUOTAS]; /* block quota time limit */
time_t um_itime[MAXQUOTAS]; /* inode quota time limit */
char um_qflags[MAXQUOTAS]; /* quota specific flags */
int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */
int um_candelete; /* devvp supports TRIM */
int (*um_balloc)(struct vnode *, off_t, int, struct ucred *, int, struct buf **);
int (*um_blkatoff)(struct vnode *, off_t, char **, struct buf **);
int (*um_truncate)(struct vnode *, off_t, int, struct ucred *, struct thread *);
int (*um_update)(struct vnode *, int);
int (*um_valloc)(struct vnode *, int, struct ucred *, struct vnode **);
int (*um_vfree)(struct vnode *, ino_t, int);
void (*um_ifree)(struct ufsmount *, struct inode *);
int (*um_rdonly)(struct inode *);
void (*um_snapgone)(struct inode *);
};
#define UFS_BALLOC(aa, bb, cc, dd, ee, ff) VFSTOUFS((aa)->v_mount)->um_balloc(aa, bb, cc, dd, ee, ff)
#define UFS_BLKATOFF(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd)
#define UFS_TRUNCATE(aa, bb, cc, dd, ee) VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd, ee)
#define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb)
#define UFS_VALLOC(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd)
#define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc)
#define UFS_IFREE(aa, bb) ((aa)->um_ifree(aa, bb))
#define UFS_RDONLY(aa) ((aa)->i_ump->um_rdonly(aa))
#define UFS_SNAPGONE(aa) ((aa)->i_ump->um_snapgone(aa))
#define UFS_LOCK(aa) mtx_lock(&(aa)->um_lock)
#define UFS_UNLOCK(aa) mtx_unlock(&(aa)->um_lock)
#define UFS_MTX(aa) (&(aa)->um_lock)
/*
* Filesystem types
*/
#define UFS1 1
#define UFS2 2
/*
* Flags describing the state of quotas.
*/
#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
#define QTF_64BIT 0x04 /* 64-bit quota file */
/* Convert mount ptr to ufsmount ptr. */
#define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))
#define UFSTOVFS(ump) (ump)->um_mountp
/*
* Macros to access filesystem parameters in the ufsmount structure.
* Used by ufs_bmap.
*/
#define MNINDIR(ump) ((ump)->um_nindir)
#define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
#define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)
#endif /* _KERNEL */
#endif