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lfs_itimes.c revision 1.18 
      1 /*	$NetBSD: lfs_itimes.c,v 1.18 2015/08/12 18:25:52 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 1.18 2015/08/12 18:25:52 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 #ifdef _KERNEL
     61 	struct timespec now;
     62 
     63 	KASSERT(ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY));
     64 
     65 	vfs_timestamp(&now);
     66 #endif
     67 
     68 	if (ip->i_flag & IN_ACCESS) {
     69 #ifdef _KERNEL
     70 		if (acc == NULL)
     71 			acc = &now;
     72 #endif
     73 		ip->i_ffs1_atime = acc->tv_sec;
     74 		ip->i_ffs1_atimensec = acc->tv_nsec;
     75 		if (ip->i_lfs->lfs_is64 || lfs_sb_getversion(ip->i_lfs) > 1) {
     76 			struct lfs *fs = ip->i_lfs;
     77 			struct buf *ibp;
     78 			IFILE *ifp;
     79 
     80 			LFS_IENTRY(ifp, ip->i_lfs, 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 			ip->i_ffs1_mtime = mod->tv_sec;
    100 			ip->i_ffs1_mtimensec = 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 			ip->i_ffs1_ctime = cre->tv_sec;
    109 			ip->i_ffs1_ctimensec = 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 }
    120