sys/ufs/lfs/lfs_itimes.c

   1 /*      $NetBSD: lfs_itimes.c,v 1.19 2015/09/01 06:08:37 dholland 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 1.19 2015/09/01 06:08:37 dholland Exp $");
  33
  34 #include <sys/param.h>
  35 #include <sys/time.h>
  36 #include <sys/mount.h>
  37 #include <sys/buf.h>
  38
  39 #ifndef _KERNEL
  40 #include "bufcache.h"
  41 #include "vnode.h"
  42 #include "lfs_user.h"
  43 #define vnode uvnode
  44 #define buf ubuf
  45 #define panic call_panic
  46 #else
  47 #include <ufs/lfs/ulfs_inode.h>
  48 #include <ufs/lfs/lfs_extern.h>
  49 #include <sys/kauth.h>
  50 #endif
  51
  52 #include <ufs/lfs/lfs.h>
  53 #include <ufs/lfs/lfs_accessors.h>
  54 #include <ufs/lfs/lfs_inode.h>
  55
  56 void
  57 lfs_itimes(struct inode *ip, const struct timespec *acc,
  58     const struct timespec *mod, const struct timespec *cre)
  59 {
  60         struct lfs *fs = ip->i_lfs;
  61 #ifdef _KERNEL
  62         struct timespec now;
  63
  64         KASSERT(ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY));
  65
  66         vfs_timestamp(&now);
  67 #endif
  68
  69         if (ip->i_flag & IN_ACCESS) {
  70 #ifdef _KERNEL
  71                 if (acc == NULL)
  72                         acc = &now;
  73 #endif
  74                 lfs_dino_setatime(fs, ip->i_din, acc->tv_sec);
  75                 lfs_dino_setatimensec(fs, ip->i_din, acc->tv_nsec);
  76                 if (fs->lfs_is64 || lfs_sb_getversion(fs) > 1) {
  77                         struct buf *ibp;
  78                         IFILE *ifp;
  79
  80                         LFS_IENTRY(ifp, fs, ip->i_number, ibp);
  81                         lfs_if_setatime_sec(fs, ifp, acc->tv_sec);
  82                         lfs_if_setatime_nsec(fs, ifp, acc->tv_nsec);
  83                         LFS_BWRITE_LOG(ibp);
  84                         mutex_enter(&lfs_lock);
  85                         fs->lfs_flags |= LFS_IFDIRTY;
  86                         mutex_exit(&lfs_lock);
  87                 } else {
  88                         mutex_enter(&lfs_lock);
  89                         LFS_SET_UINO(ip, IN_ACCESSED);
  90                         mutex_exit(&lfs_lock);
  91                 }
  92         }
  93         if (ip->i_flag & (IN_CHANGE | IN_UPDATE | IN_MODIFY)) {
  94                 if (ip->i_flag & (IN_UPDATE | IN_MODIFY)) {
  95 #ifdef _KERNEL
  96                         if (mod == NULL)
  97                                 mod = &now;
  98 #endif
  99                         lfs_dino_setmtime(fs, ip->i_din, mod->tv_sec);
 100                         lfs_dino_setmtimensec(fs, ip->i_din, mod->tv_nsec);
 101                         ip->i_modrev++;
 102                 }
 103                 if (ip->i_flag & (IN_CHANGE | IN_MODIFY)) {
 104 #ifdef _KERNEL
 105                         if (cre == NULL)
 106                                 cre = &now;
 107 #endif
 108                         lfs_dino_setctime(fs, ip->i_din, cre->tv_sec);
 109                         lfs_dino_setctimensec(fs, ip->i_din, cre->tv_nsec);
 110                 }
 111                 mutex_enter(&lfs_lock);
 112                 if (ip->i_flag & (IN_CHANGE | IN_UPDATE))
 113                         LFS_SET_UINO(ip, IN_MODIFIED);
 114                 if (ip->i_flag & IN_MODIFY)
 115                         LFS_SET_UINO(ip, IN_ACCESSED);
 116                 mutex_exit(&lfs_lock);
 117         }
 118         ip->i_flag &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY);
 119 }