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lfs_itimes.c revision 1.15 
      1 /*	$NetBSD: lfs_itimes.c,v 1.15 2013/06/08 02:16:03 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 (at) 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 1.15 2013/06/08 02:16:03 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_inode.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 }
    119