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/ufs_inode.c

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) 1991, 1993, 1995
    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  *      @(#)ufs_inode.c 8.9 (Berkeley) 5/14/95
   39  * $FreeBSD$
   40  */
   41 
   42 #include "opt_quota.h"
   43 
   44 #include <sys/param.h>
   45 #include <sys/vnode.h>
   46 #include <sys/mount.h>
   47 #include <sys/malloc.h>
   48 
   49 #include <ufs/ufs/quota.h>
   50 #include <ufs/ufs/inode.h>
   51 #include <ufs/ufs/ufsmount.h>
   52 #include <ufs/ufs/ufs_extern.h>
   53 
   54 int     prtactive = 0;          /* 1 => print out reclaim of active vnodes */
   55 
   56 /*
   57  * Last reference to an inode.  If necessary, write or delete it.
   58  */
   59 int
   60 ufs_inactive(ap)
   61         struct vop_inactive_args /* {
   62                 struct vnode *a_vp;
   63                 struct proc *a_p;
   64         } */ *ap;
   65 {
   66         struct vnode *vp = ap->a_vp;
   67         struct inode *ip = VTOI(vp);
   68         struct proc *p = ap->a_p;
   69         int mode, error = 0;
   70 
   71         if (prtactive && vp->v_usecount != 0)
   72                 vprint("ufs_inactive: pushing active", vp);
   73 
   74         /*
   75          * Ignore inodes related to stale file handles.
   76          */
   77         if (ip->i_mode == 0)
   78                 goto out;
   79         if (ip->i_nlink <= 0 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
   80 #ifdef QUOTA
   81                 if (!getinoquota(ip))
   82                         (void)chkiq(ip, -1, NOCRED, 0);
   83 #endif
   84                 error = UFS_TRUNCATE(vp, (off_t)0, 0, NOCRED, p);
   85                 ip->i_rdev = 0;
   86                 mode = ip->i_mode;
   87                 ip->i_mode = 0;
   88                 ip->i_flag |= IN_CHANGE | IN_UPDATE;
   89                 UFS_VFREE(vp, ip->i_number, mode);
   90         }
   91         if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE))
   92                 UFS_UPDATE(vp, 0);
   93 out:
   94         VOP_UNLOCK(vp, 0, p);
   95         /*
   96          * If we are done with the inode, reclaim it
   97          * so that it can be reused immediately.
   98          */
   99         if (ip->i_mode == 0)
  100                 vrecycle(vp, (struct simplelock *)0, p);
  101         return (error);
  102 }
  103 
  104 /*
  105  * Reclaim an inode so that it can be used for other purposes.
  106  */
  107 int
  108 ufs_reclaim(ap)
  109         struct vop_reclaim_args /* {
  110                 struct vnode *a_vp;
  111                 struct proc *a_p;
  112         } */ *ap;
  113 {
  114         register struct inode *ip;
  115         register struct vnode *vp = ap->a_vp;
  116 #ifdef QUOTA
  117         int i;
  118 #endif
  119 
  120         if (prtactive && vp->v_usecount != 0)
  121                 vprint("ufs_reclaim: pushing active", vp);
  122         ip = VTOI(vp);
  123         if (ip->i_flag & IN_LAZYMOD) {
  124                 ip->i_flag |= IN_MODIFIED;
  125                 UFS_UPDATE(vp, 0);
  126         }
  127         /*
  128          * Remove the inode from its hash chain.
  129          */
  130         ufs_ihashrem(ip);
  131         /*
  132          * Purge old data structures associated with the inode.
  133          */
  134         cache_purge(vp);
  135         if (ip->i_devvp) {
  136                 vrele(ip->i_devvp);
  137                 ip->i_devvp = 0;
  138         }
  139 #ifdef QUOTA
  140         for (i = 0; i < MAXQUOTAS; i++) {
  141                 if (ip->i_dquot[i] != NODQUOT) {
  142                         dqrele(vp, ip->i_dquot[i]);
  143                         ip->i_dquot[i] = NODQUOT;
  144                 }
  145         }
  146 #endif
  147         FREE(vp->v_data, VFSTOUFS(vp->v_mount)->um_malloctype);
  148         vp->v_data = 0;
  149         return (0);
  150 }

Cache object: b511257ece5ffdb3d3c1e3b7745d6da2


[ 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.