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Annotation of Net2/ufs/ufsmount.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
                      3:  * 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:  * 3. All advertising materials mentioning features or use of this software
                     14:  *    must display the following acknowledgement:
                     15:  *     This product includes software developed by the University of
                     16:  *     California, Berkeley and its contributors.
                     17:  * 4. Neither the name of the University nor the names of its contributors
                     18:  *    may be used to endorse or promote products derived from this software
                     19:  *    without specific prior written permission.
                     20:  *
                     21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     31:  * SUCH DAMAGE.
                     32:  *
                     33:  *     @(#)ufsmount.h  7.9 (Berkeley) 5/8/91
                     34:  */
                     35: 
                     36: /*
                     37:  * This structure describes the UFS specific mount structure data.
                     38:  */
                     39: struct ufsmount {
                     40:        struct  mount *um_mountp;       /* vfs structure for this filesystem */
                     41:        dev_t   um_dev;                 /* device mounted */
                     42:        struct  vnode *um_devvp;        /* vnode for block device mounted */
                     43:        struct  fs *um_fs;              /* pointer to superblock */
                     44:        struct  vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
                     45:        struct  ucred *um_cred[MAXQUOTAS]; /* cred for access to quota file */
                     46:        time_t  um_btime[MAXQUOTAS];    /* block quota time limit */
                     47:        time_t  um_itime[MAXQUOTAS];    /* inode quota time limit */
                     48:        char    um_qflags[MAXQUOTAS];   /* quota specific flags, see below */
                     49: };
                     50: /*
                     51:  * Flags describing the state of quotas.
                     52:  */
                     53: #define        QTF_OPENING     0x01            /* Q_QUOTAON in progress */
                     54: #define        QTF_CLOSING     0x02            /* Q_QUOTAOFF in progress */
                     55: 
                     56: #ifdef KERNEL
                     57: /*
                     58:  * Convert mount ptr to ufsmount ptr.
                     59:  */
                     60: #define VFSTOUFS(mp)   ((struct ufsmount *)((mp)->mnt_data))
                     61: #endif /* KERNEL */
                     62: 
                     63: /*
                     64:  * Prototypes for UFS mount operations
                     65:  */
                     66: int ufs_mount __P((struct mount *mp, char *path, caddr_t data,
                     67:        struct nameidata *ndp, struct proc *p));
                     68: int ufs_start __P((struct mount *mp, int flags, struct proc *p));
                     69: int ufs_unmount __P((struct mount *mp, int mntflags, struct proc *p));
                     70: int ufs_root __P((struct mount *mp, struct vnode **vpp));
                     71: int ufs_quotactl __P((struct mount *mp, int cmds, int uid, /* should be uid_t */
                     72:        caddr_t arg, struct proc *p));
                     73: int ufs_statfs __P((struct mount *mp, struct statfs *sbp, struct proc *p));
                     74: int ufs_sync __P((struct mount *mp, int waitfor));
                     75: int ufs_fhtovp __P((struct mount *mp, struct fid *fhp, struct vnode **vpp));
                     76: int ufs_vptofh __P((struct vnode *vp, struct fid *fhp));
                     77: int ufs_init __P(());

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