sys/ufs/lfs/lfs_itimes.c

   1 /*      $NetBSD: lfs_itimes.c,v 1.12 2008/04/28 20:24:11 martin Exp $   */
   2
   3 /*-
   4  * Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Konrad E. Schroder <perseant@hhhh.org>.
   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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 #include <sys/cdefs.h>
  32 __KERNEL_RCSID(0, "$NetBSD: lfs_itimes.c,v 1.12 2008/04/28 20:24:11 martin Exp $");
  33
  34 #include <sys/param.h>
  35 #include <sys/time.h>
  36 #include <sys/mount.h>
  37 #include <sys/buf.h>
  38
  39 #include <ufs/ufs/inode.h>
  40
  41 #ifndef _KERNEL
  42 #include "bufcache.h"
  43 #include "vnode.h"
  44 #include "lfs_user.h"
  45 #define vnode uvnode
  46 #define buf ubuf
  47 #define panic call_panic
  48 #else
  49 #include <ufs/lfs/lfs_extern.h>
  50 #include <sys/kauth.h>
  51 #endif
  52
  53 #include <ufs/lfs/lfs.h>
  54
  55 void
  56 lfs_itimes(struct inode *ip, const struct timespec *acc,
  57     const struct timespec *mod, const struct timespec *cre)
  58 {
  59 #ifdef _KERNEL
  60         struct timespec now;
  61
  62         KASSERT(ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY));
  63
  64         vfs_timestamp(&now);
  65 #endif
  66
  67         if (ip->i_flag & IN_ACCESS) {
  68 #ifdef _KERNEL
  69                 if (acc == NULL)
  70                         acc = &now;
  71 #endif
  72                 ip->i_ffs1_atime = acc->tv_sec;
  73                 ip->i_ffs1_atimensec = acc->tv_nsec;
  74                 if (ip->i_lfs->lfs_version > 1) {
  75                         struct lfs *fs = ip->i_lfs;
  76                         struct buf *ibp;
  77                         IFILE *ifp;
  78
  79                         LFS_IENTRY(ifp, ip->i_lfs, ip->i_number, ibp);
  80                         ifp->if_atime_sec = acc->tv_sec;
  81                         ifp->if_atime_nsec = acc->tv_nsec;
  82                         LFS_BWRITE_LOG(ibp);
  83                         mutex_enter(&lfs_lock);
  84                         fs->lfs_flags |= LFS_IFDIRTY;
  85                         mutex_exit(&lfs_lock);
  86                 } else {
  87                         mutex_enter(&lfs_lock);
  88                         LFS_SET_UINO(ip, IN_ACCESSED);
  89                         mutex_exit(&lfs_lock);
  90                 }
  91         }
  92         if (ip->i_flag & (IN_CHANGE | IN_UPDATE | IN_MODIFY)) {
  93                 if (ip->i_flag & (IN_UPDATE | IN_MODIFY)) {
  94 #ifdef _KERNEL
  95                         if (mod == NULL)
  96                                 mod = &now;
  97 #endif
  98                         ip->i_ffs1_mtime = mod->tv_sec;
  99                         ip->i_ffs1_mtimensec = mod->tv_nsec;
 100                         ip->i_modrev++;
 101                 }
 102                 if (ip->i_flag & (IN_CHANGE | IN_MODIFY)) {
 103 #ifdef _KERNEL
 104                         if (cre == NULL)
 105                                 cre = &now;
 106 #endif
 107                         ip->i_ffs1_ctime = cre->tv_sec;
 108                         ip->i_ffs1_ctimensec = cre->tv_nsec;
 109                 }
 110                 mutex_enter(&lfs_lock);
 111                 if (ip->i_flag & (IN_CHANGE | IN_UPDATE))
 112                         LFS_SET_UINO(ip, IN_MODIFIED);
 113                 if (ip->i_flag & IN_MODIFY)
 114                         LFS_SET_UINO(ip, IN_ACCESSED);
 115                 mutex_exit(&lfs_lock);
 116         }
 117         ip->i_flag &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY);
 118 }