sys/fs/v7fs/v7fs_superblock_util.c

   1 /*      $NetBSD: v7fs_superblock_util.c,v 1.2 2011/07/18 21:51:49 apb Exp $     */
   2
   3 /*-
   4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by UCHIYAMA Yasushi.
   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
  32 #if HAVE_NBTOOL_CONFIG_H
  33 #include "nbtool_config.h"
  34 #endif
  35
  36 #include <sys/cdefs.h>
  37 __KERNEL_RCSID(0, "$NetBSD: v7fs_superblock_util.c,v 1.2 2011/07/18 21:51:49 apb Exp $");
  38 #if defined _KERNEL_OPT
  39 #include "opt_v7fs.h"
  40 #endif
  41
  42 #ifdef _KERNEL
  43 #include <sys/systm.h>
  44 #include <sys/param.h>  /* errno */
  45 #else
  46 #include <stdio.h>
  47 #include <time.h>
  48 #endif
  49
  50 #include "v7fs.h"
  51 #include "v7fs_impl.h"
  52 #include "v7fs_superblock.h"
  53 #include "v7fs_inode.h"
  54
  55 #ifdef V7FS_SUPERBLOCK_DEBUG
  56 #define DPRINTF(fmt, args...)   printf("%s: " fmt, __func__, ##args)
  57 #define DPRINTF_(fmt, args...)  printf(fmt, ##args)
  58 #else
  59 #define DPRINTF(fmt, args...)   ((void)0)
  60 #define DPRINTF_(fmt, args...)  ((void)0)
  61 #endif
  62
  63 void
  64 v7fs_superblock_status(struct v7fs_self *fs)
  65 {
  66         struct v7fs_superblock *sb = &fs->superblock;
  67         struct v7fs_stat *stat = &fs->stat;
  68
  69         stat->total_blocks = sb->volume_size - sb->datablock_start_sector;
  70         stat->total_inode = V7FS_MAX_INODE(sb);
  71         stat->free_inode = sb->total_freeinode;
  72         stat->free_blocks = sb->total_freeblock;
  73         stat->total_files = stat->total_inode - sb->total_freeinode - 1;
  74
  75         DPRINTF("block %d/%d, inode %d/%d\n", stat->free_blocks,
  76             stat->total_blocks, stat->free_inode, stat->total_inode);
  77 }
  78
  79 void
  80 v7fs_superblock_dump(const struct v7fs_self *fs)
  81 {
  82         const struct v7fs_superblock *sb = &fs->superblock;
  83
  84 #define print(x)        printf("%s: %d\n", #x, sb->x)
  85         print(datablock_start_sector);
  86         print(volume_size);
  87         print(nfreeblock);
  88         print(nfreeinode);
  89         print(update_time);
  90         print(lock_freeblock);
  91         print(lock_freeinode);
  92         print(modified);
  93         print(readonly);
  94 #if !defined _KERNEL
  95         time_t t = sb->update_time;
  96         printf("%s", ctime(&t));
  97 #endif
  98         print(total_freeblock);
  99         print(total_freeinode);
 100 #undef print
 101 }