The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/compat/sys/mount.h

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    1 /*      $NetBSD: mount.h,v 1.7 2007/07/17 20:31:03 christos Exp $       */
    2 
    3 /*
    4  * Copyright (c) 1989, 1991, 1993
    5  *      The Regents of the University of California.  All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. Neither the name of the University nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  *      @(#)mount.h     8.21 (Berkeley) 5/20/95
   32  */
   33 
   34 #ifndef _COMPAT_SYS_MOUNT_H_
   35 #define _COMPAT_SYS_MOUNT_H_
   36 
   37 #ifdef _KERNEL_OPT
   38 #include "opt_compat_43.h"
   39 #endif
   40 
   41 #define MFSNAMELEN      16
   42 
   43 struct statfs12 {
   44         short   f_type;                 /* type of file system */
   45         u_short f_oflags;               /* deprecated copy of mount flags */
   46         long    f_bsize;                /* fundamental file system block size */
   47         long    f_iosize;               /* optimal transfer block size */
   48         long    f_blocks;               /* total data blocks in file system */
   49         long    f_bfree;                /* free blocks in fs */
   50         long    f_bavail;               /* free blocks avail to non-superuser */
   51         long    f_files;                /* total file nodes in file system */
   52         long    f_ffree;                /* free file nodes in fs */
   53         fsid_t  f_fsid;                 /* file system id */
   54         uid_t   f_owner;                /* user that mounted the file system */
   55         long    f_flags;                /* copy of mount flags */
   56         long    f_syncwrites;           /* count of sync writes since mount */
   57         long    f_asyncwrites;          /* count of async writes since mount */
   58         long    f_spare[1];             /* spare for later */
   59         char    f_fstypename[MFSNAMELEN]; /* fs type name */
   60         char    f_mntonname[MNAMELEN];    /* directory on which mounted */
   61         char    f_mntfromname[MNAMELEN];  /* mounted file system */
   62 };
   63 
   64 /*
   65  * Operations supported on mounted file system.
   66  */
   67 #ifdef _KERNEL
   68 
   69 /*
   70  * Filesystem configuration information. Not used by NetBSD, but
   71  * defined here to provide a compatible sysctl interface to Lite2.
   72  */
   73 struct vfsconf {
   74         struct  vfsops *vfc_vfsops;     /* filesystem operations vector */
   75         char    vfc_name[MFSNAMELEN];   /* filesystem type name */
   76         int     vfc_typenum;            /* historic filesystem type number */
   77         int     vfc_refcount;           /* number mounted of this type */
   78         int     vfc_flags;              /* permanent flags */
   79         int     (*vfc_mountroot)(void); /* if != NULL, routine to mount root */
   80         struct  vfsconf *vfc_next;      /* next in list */
   81 };
   82 
   83 /* Old, fixed size filehandle structures (used upto (including) 3.x) */
   84 struct compat_30_fid {
   85         unsigned short  fid_len;
   86         unsigned short  fid_reserved;
   87         char            fid_data[16];
   88 };
   89 struct compat_30_fhandle {
   90         fsid_t  fh_fsid;
   91         struct compat_30_fid fh_fid;
   92 };
   93 
   94 #else
   95 
   96 __BEGIN_DECLS
   97 int     fstatfs(int, struct statfs12 *);
   98 int     getfsstat(struct statfs12 *, long, int);
   99 int     statfs(const char *, struct statfs12 *);
  100 int     getmntinfo(struct statfs12 **, int);
  101 #if defined(_NETBSD_SOURCE)
  102 struct compat_30_fhandle;
  103 int     fhstatfs(const struct compat_30_fhandle *, struct statfs12 *);
  104 struct stat13;
  105 int     fhstat(const struct compat_30_fhandle *, struct stat13 *);
  106 struct stat;
  107 int     __fhstat30(const struct compat_30_fhandle *, struct stat *);
  108 #endif /* _NETBSD_SOURCE */
  109 __END_DECLS
  110 
  111 #endif /* _KERNEL */
  112 
  113 #endif /* !_COMPAT_SYS_MOUNT_H_ */

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