btrfs-progs/cmds-fi-disk_usage.h

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/*
* Copyright (C) 2007 Oracle. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
#ifndef __CMDS_FI_DISK_USAGE_H__
#define __CMDS_FI_DISK_USAGE_H__
extern const char * const cmd_filesystem_usage_usage[];
int cmd_filesystem_usage(int argc, char **argv);
struct device_info {
u64 devid;
char path[BTRFS_DEVICE_PATH_NAME_MAX];
/* Size of the block device */
u64 device_size;
/* Size that's occupied by the filesystem, can be changed via resize */
u64 size;
};
/*
* To store the size information about the chunks:
* the chunks info are grouped by the tuple (type, devid, num_stripes),
* i.e. if two chunks are of the same type (RAID1, DUP...), are on the
* same disk, have the same stripes then their sizes are grouped
*/
struct chunk_info {
u64 type;
u64 size;
u64 devid;
u64 num_stripes;
};
int load_chunk_and_device_info(int fd, struct chunk_info **chunkinfo,
int *chunkcount, struct device_info **devinfo, int *devcount);
void print_device_chunks(int fd, struct device_info *devinfo,
struct chunk_info *chunks_info_ptr,
int chunks_info_count, unsigned unit_mode);
void print_device_sizes(int fd, struct device_info *devinfo, unsigned unit_mode);
#endif