cmds-fi-usage.h

   1 /*
   2  * Copyright (C) 2007 Oracle.  All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public
   6  * License v2 as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public
  14  * License along with this program; if not, write to the
  15  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  16  * Boston, MA 021110-1307, USA.
  17  */
  18
  19 #ifndef __CMDS_FI_USAGE_H__
  20 #define __CMDS_FI_USAGE_H__
  21
  22 #include "kerncompat.h"
  23 #include "ioctl.h"
  24
  25 struct device_info {
  26         u64     devid;
  27         char    path[BTRFS_DEVICE_PATH_NAME_MAX];
  28         /* Size of the block device */
  29         u64     device_size;
  30         /* Size that's occupied by the filesystem, can be changed via resize */
  31         u64     size;
  32 };
  33
  34 /*
  35  * To store the size information about the chunks:
  36  * the chunks info are grouped by the tuple (type, devid, num_stripes),
  37  * i.e. if two chunks are of the same type (RAID1, DUP...), are on the
  38  * same disk, have the same stripes then their sizes are grouped
  39  */
  40 struct chunk_info {
  41         u64     type;
  42         u64     size;
  43         u64     devid;
  44         u64     num_stripes;
  45 };
  46
  47 int load_chunk_and_device_info(int fd, struct chunk_info **chunkinfo,
  48                 int *chunkcount, struct device_info **devinfo, int *devcount);
  49 void print_device_chunks(struct device_info *devinfo,
  50                 struct chunk_info *chunks_info_ptr,
  51                 int chunks_info_count, unsigned unit_mode);
  52 void print_device_sizes(struct device_info *devinfo, unsigned unit_mode);
  53 int dev_to_fsid(const char *dev, u8 *fsid);
  54
  55 #endif