btrfs-progs/cmds/filesystem-usage.h
David Sterba e6fdeb81a9 btrfs-progs: fi usage: unify naming of device and chunk info variables
Use devinfo and chunkinfo and _ret suffix for return variables.

Signed-off-by: David Sterba <dsterba@suse.com>
2022-10-11 09:08:08 +02:00

56 lines
1.7 KiB
C

/*
* 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_USAGE_H__
#define __CMDS_FI_USAGE_H__
#include "kerncompat.h"
#include "ioctl.h"
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_ret,
int *chunkcount_ret, struct device_info **devinfo_ret,
int *devcount_ret);
void print_device_chunks(struct device_info *devinfo,
struct chunk_info *chunk_info, int chunkcount, unsigned unit_mode);
void print_device_sizes(struct device_info *devinfo, unsigned unit_mode);
int dev_to_fsid(const char *dev, u8 *fsid);
#endif