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


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/ufs/ufs/inode.h

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*
    2  * Copyright (c) 1982, 1989, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  * (c) UNIX System Laboratories, Inc.
    5  * All or some portions of this file are derived from material licensed
    6  * to the University of California by American Telephone and Telegraph
    7  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
    8  * the permission of UNIX System Laboratories, Inc.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *      This product includes software developed by the University of
   21  *      California, Berkeley and its contributors.
   22  * 4. Neither the name of the University nor the names of its contributors
   23  *    may be used to endorse or promote products derived from this software
   24  *    without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   36  * SUCH DAMAGE.
   37  *
   38  *      @(#)inode.h     8.9 (Berkeley) 5/14/95
   39  * $FreeBSD$
   40  */
   41 
   42 #ifndef _UFS_UFS_INODE_H_
   43 #define _UFS_UFS_INODE_H_
   44 
   45 #include <sys/lock.h>
   46 #include <ufs/ufs/dinode.h>
   47 
   48 /*
   49  * The size of a logical block number.
   50  */
   51 typedef long ufs_lbn_t;
   52 
   53 /*
   54  * This must agree with the definition in <ufs/ufs/dir.h>.
   55  */
   56 #define doff_t          int32_t
   57 
   58 /*
   59  * The inode is used to describe each active (or recently active) file in the
   60  * UFS filesystem. It is composed of two types of information. The first part
   61  * is the information that is needed only while the file is active (such as
   62  * the identity of the file and linkage to speed its lookup). The second part
   63  * is the permanent meta-data associated with the file which is read in
   64  * from the permanent dinode from long term storage when the file becomes
   65  * active, and is put back when the file is no longer being used.
   66  */
   67 struct inode {
   68         struct   lock i_lock;   /* Inode lock. >Keep this first< */
   69         LIST_ENTRY(inode) i_hash;/* Hash chain. */
   70         struct  vnode  *i_vnode;/* Vnode associated with this inode. */
   71         struct  vnode  *i_devvp;/* Vnode for block I/O. */
   72         u_int32_t i_flag;       /* flags, see below */
   73         dev_t     i_dev;        /* Device associated with the inode. */
   74         ino_t     i_number;     /* The identity of the inode. */
   75         int       i_effnlink;   /* i_nlink when I/O completes */
   76 
   77         union {                 /* Associated filesystem. */
   78                 struct  fs *fs;         /* FFS */
   79                 struct  ext2_sb_info *e2fs;     /* EXT2FS */
   80         } inode_u;
   81 #define i_fs    inode_u.fs
   82 #define i_e2fs  inode_u.e2fs
   83         struct   dquot *i_dquot[MAXQUOTAS]; /* Dquot structures. */
   84         u_quad_t i_modrev;      /* Revision level for NFS lease. */
   85         struct   lockf *i_lockf;/* Head of byte-level lock list. */
   86         /*
   87          * Side effects; used during directory lookup.
   88          */
   89         int32_t   i_count;      /* Size of free slot in directory. */
   90         doff_t    i_endoff;     /* End of useful stuff in directory. */
   91         doff_t    i_diroff;     /* Offset in dir, where we found last entry. */
   92         doff_t    i_offset;     /* Offset of free space in directory. */
   93         ino_t     i_ino;        /* Inode number of found directory. */
   94         u_int32_t i_reclen;     /* Size of found directory entry. */
   95         u_int32_t i_spare[4];   /* XXX actually non-spare (for ext2fs). */
   96         /*
   97          * The on-disk dinode itself.
   98          */
   99         struct  dinode i_din;   /* 128 bytes of the on-disk dinode. */
  100 };
  101 
  102 #define i_atime         i_din.di_atime
  103 #define i_atimensec     i_din.di_atimensec
  104 #define i_blocks        i_din.di_blocks
  105 #define i_ctime         i_din.di_ctime
  106 #define i_ctimensec     i_din.di_ctimensec
  107 #define i_db            i_din.di_db
  108 #define i_flags         i_din.di_flags
  109 #define i_gen           i_din.di_gen
  110 #define i_gid           i_din.di_gid
  111 #define i_ib            i_din.di_ib
  112 #define i_mode          i_din.di_mode
  113 #define i_mtime         i_din.di_mtime
  114 #define i_mtimensec     i_din.di_mtimensec
  115 #define i_nlink         i_din.di_nlink
  116 #define i_rdev          i_din.di_rdev
  117 #define i_shortlink     i_din.di_shortlink
  118 #define i_size          i_din.di_size
  119 #define i_uid           i_din.di_uid
  120 
  121 /* These flags are kept in i_flag. */
  122 #define IN_ACCESS       0x0001          /* Access time update request. */
  123 #define IN_CHANGE       0x0002          /* Inode change time update request. */
  124 #define IN_UPDATE       0x0004          /* Modification time update request. */
  125 #define IN_MODIFIED     0x0008          /* Inode has been modified. */
  126 #define IN_RENAME       0x0010          /* Inode is being renamed. */
  127 #define IN_SHLOCK       0x0020          /* File has shared lock. */
  128 #define IN_EXLOCK       0x0040          /* File has exclusive lock. */
  129 #define IN_HASHED       0x0080          /* Inode is on hash list */
  130 #define IN_LAZYMOD      0x0100          /* Modified, but don't write yet. */
  131 
  132 #ifdef KERNEL
  133 /*
  134  * Structure used to pass around logical block paths generated by
  135  * ufs_getlbns and used by truncate and bmap code.
  136  */
  137 struct indir {
  138         ufs_daddr_t in_lbn;             /* Logical block number. */
  139         int     in_off;                 /* Offset in buffer. */
  140         int     in_exists;              /* Flag if the block exists. */
  141 };
  142 
  143 /* Convert between inode pointers and vnode pointers. */
  144 #define VTOI(vp)        ((struct inode *)(vp)->v_data)
  145 #define ITOV(ip)        ((ip)->i_vnode)
  146 
  147 /* Determine if soft dependencies are being done */
  148 #define DOINGSOFTDEP(vp)        ((vp)->v_mount->mnt_flag & MNT_SOFTDEP)
  149 
  150 /* This overlays the fid structure (see mount.h). */
  151 struct ufid {
  152         u_int16_t ufid_len;     /* Length of structure. */
  153         u_int16_t ufid_pad;     /* Force 32-bit alignment. */
  154         ino_t     ufid_ino;     /* File number (ino). */
  155         int32_t   ufid_gen;     /* Generation number. */
  156 };
  157 #endif /* KERNEL */
  158 
  159 #endif /* !_UFS_UFS_INODE_H_ */

Cache object: 1b12afb9641ede6d7e3d13599ed49203


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.