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Annotation of Net2/ufs/ufsmount.h, revision 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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