minix/sys/ufs/lfs/lfs_itimes.c

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/* $NetBSD: lfs_itimes.c,v 1.12 2008/04/28 20:24:11 martin Exp $ */
/*-
* Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Konrad E. Schroder <perseant@hhhh.org>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: lfs_itimes.c,v 1.12 2008/04/28 20:24:11 martin Exp $");
#include <sys/param.h>
#include <sys/time.h>
#include <sys/mount.h>
#include <sys/buf.h>
#include <ufs/ufs/inode.h>
#ifndef _KERNEL
#include "bufcache.h"
#include "vnode.h"
#include "lfs_user.h"
#define vnode uvnode
#define buf ubuf
#define panic call_panic
#else
#include <ufs/lfs/lfs_extern.h>
#include <sys/kauth.h>
#endif
#include <ufs/lfs/lfs.h>
void
lfs_itimes(struct inode *ip, const struct timespec *acc,
const struct timespec *mod, const struct timespec *cre)
{
#ifdef _KERNEL
struct timespec now;
KASSERT(ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY));
vfs_timestamp(&now);
#endif
if (ip->i_flag & IN_ACCESS) {
#ifdef _KERNEL
if (acc == NULL)
acc = &now;
#endif
ip->i_ffs1_atime = acc->tv_sec;
ip->i_ffs1_atimensec = acc->tv_nsec;
if (ip->i_lfs->lfs_version > 1) {
struct lfs *fs = ip->i_lfs;
struct buf *ibp;
IFILE *ifp;
LFS_IENTRY(ifp, ip->i_lfs, ip->i_number, ibp);
ifp->if_atime_sec = acc->tv_sec;
ifp->if_atime_nsec = acc->tv_nsec;
LFS_BWRITE_LOG(ibp);
mutex_enter(&lfs_lock);
fs->lfs_flags |= LFS_IFDIRTY;
mutex_exit(&lfs_lock);
} else {
mutex_enter(&lfs_lock);
LFS_SET_UINO(ip, IN_ACCESSED);
mutex_exit(&lfs_lock);
}
}
if (ip->i_flag & (IN_CHANGE | IN_UPDATE | IN_MODIFY)) {
if (ip->i_flag & (IN_UPDATE | IN_MODIFY)) {
#ifdef _KERNEL
if (mod == NULL)
mod = &now;
#endif
ip->i_ffs1_mtime = mod->tv_sec;
ip->i_ffs1_mtimensec = mod->tv_nsec;
ip->i_modrev++;
}
if (ip->i_flag & (IN_CHANGE | IN_MODIFY)) {
#ifdef _KERNEL
if (cre == NULL)
cre = &now;
#endif
ip->i_ffs1_ctime = cre->tv_sec;
ip->i_ffs1_ctimensec = cre->tv_nsec;
}
mutex_enter(&lfs_lock);
if (ip->i_flag & (IN_CHANGE | IN_UPDATE))
LFS_SET_UINO(ip, IN_MODIFIED);
if (ip->i_flag & IN_MODIFY)
LFS_SET_UINO(ip, IN_ACCESSED);
mutex_exit(&lfs_lock);
}
ip->i_flag &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY);
}