btrfs-progs/qgroup.h

102 lines
3.0 KiB
C

/*
* Copyright (C) 2012 STRATO. 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 __BTRFS_QGROUP_H__
#define __BTRFS_QGROUP_H__
#include "ioctl.h"
#include "kerncompat.h"
struct btrfs_qgroup;
typedef int (*btrfs_qgroup_filter_func)(struct btrfs_qgroup *, u64);
typedef int (*btrfs_qgroup_comp_func)(struct btrfs_qgroup *,
struct btrfs_qgroup *, int);
struct btrfs_qgroup_filter {
btrfs_qgroup_filter_func filter_func;
u64 data;
};
struct btrfs_qgroup_comparer {
btrfs_qgroup_comp_func comp_func;
int is_descending;
};
struct btrfs_qgroup_filter_set {
int total;
int nfilters;
struct btrfs_qgroup_filter filters[0];
};
struct btrfs_qgroup_comparer_set {
int total;
int ncomps;
struct btrfs_qgroup_comparer comps[0];
};
enum btrfs_qgroup_column_enum {
BTRFS_QGROUP_QGROUPID,
BTRFS_QGROUP_RFER,
BTRFS_QGROUP_EXCL,
BTRFS_QGROUP_MAX_RFER,
BTRFS_QGROUP_MAX_EXCL,
BTRFS_QGROUP_PARENT,
BTRFS_QGROUP_CHILD,
BTRFS_QGROUP_ALL,
};
enum btrfs_qgroup_comp_enum {
BTRFS_QGROUP_COMP_QGROUPID,
BTRFS_QGROUP_COMP_RFER,
BTRFS_QGROUP_COMP_EXCL,
BTRFS_QGROUP_COMP_MAX_RFER,
BTRFS_QGROUP_COMP_MAX_EXCL,
BTRFS_QGROUP_COMP_MAX
};
enum btrfs_qgroup_filter_enum {
BTRFS_QGROUP_FILTER_PARENT,
BTRFS_QGROUP_FILTER_ALL_PARENT,
BTRFS_QGROUP_FILTER_MAX,
};
int btrfs_qgroup_parse_sort_string(char *opt_arg,
struct btrfs_qgroup_comparer_set **comps);
u64 btrfs_get_path_rootid(int fd);
int btrfs_show_qgroups(int fd, struct btrfs_qgroup_filter_set *,
struct btrfs_qgroup_comparer_set *);
void btrfs_qgroup_setup_print_column(enum btrfs_qgroup_column_enum column);
void btrfs_qgroup_setup_units(unsigned unit_mode);
struct btrfs_qgroup_filter_set *btrfs_qgroup_alloc_filter_set(void);
void btrfs_qgroup_free_filter_set(struct btrfs_qgroup_filter_set *filter_set);
int btrfs_qgroup_setup_filter(struct btrfs_qgroup_filter_set **filter_set,
enum btrfs_qgroup_filter_enum, u64 data);
struct btrfs_qgroup_comparer_set *btrfs_qgroup_alloc_comparer_set(void);
void btrfs_qgroup_free_comparer_set(struct btrfs_qgroup_comparer_set *comp_set);
int btrfs_qgroup_setup_comparer(struct btrfs_qgroup_comparer_set **comp_set,
enum btrfs_qgroup_comp_enum comparer,
int is_descending);
int qgroup_inherit_size(struct btrfs_qgroup_inherit *p);
int qgroup_inherit_add_group(struct btrfs_qgroup_inherit **inherit, char *arg);
int qgroup_inherit_add_copy(struct btrfs_qgroup_inherit **inherit, char *arg,
int type);
#endif