btrfs-progs/btrfs-list.h
Wang Shilong a1e89891eb Btrfs-Progs: fix subvolumes's some full_path invaild problems.
In the privous way, we list all the subvolumes in the filesystem default.

But if a subvolume mounts on another directory, some result's full_path
may be invaild.

According to this, we try to list subvolumes under directoy only by default.

In this way, all the subvolume can be arrived by the full_path.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
2012-10-04 16:26:33 -04:00

108 lines
3.3 KiB
C

/*
* Copyright (C) 2012 Fujitsu. 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.
*/
#include "kerncompat.h"
struct root_info;
typedef int (*btrfs_list_filter_func)(struct root_info *, u64);
typedef int (*btrfs_list_comp_func)(struct root_info *, struct root_info *,
int);
struct btrfs_list_filter {
btrfs_list_filter_func filter_func;
u64 data;
};
struct btrfs_list_comparer {
btrfs_list_comp_func comp_func;
int is_descending;
};
struct btrfs_list_filter_set {
int total;
int nfilters;
struct btrfs_list_filter filters[0];
};
struct btrfs_list_comparer_set {
int total;
int ncomps;
struct btrfs_list_comparer comps[0];
};
enum btrfs_list_column_enum {
BTRFS_LIST_OBJECTID,
BTRFS_LIST_GENERATION,
BTRFS_LIST_OGENERATION,
BTRFS_LIST_PARENT,
BTRFS_LIST_TOP_LEVEL,
BTRFS_LIST_OTIME,
BTRFS_LIST_UUID,
BTRFS_LIST_PATH,
BTRFS_LIST_ALL,
};
enum btrfs_list_filter_enum {
BTRFS_LIST_FILTER_ROOTID,
BTRFS_LIST_FILTER_SNAPSHOT_ONLY,
BTRFS_LIST_FILTER_FLAGS,
BTRFS_LIST_FILTER_GEN,
BTRFS_LIST_FILTER_GEN_EQUAL = BTRFS_LIST_FILTER_GEN,
BTRFS_LIST_FILTER_GEN_LESS,
BTRFS_LIST_FILTER_GEN_MORE,
BTRFS_LIST_FILTER_CGEN,
BTRFS_LIST_FILTER_CGEN_EQUAL = BTRFS_LIST_FILTER_CGEN,
BTRFS_LIST_FILTER_CGEN_LESS,
BTRFS_LIST_FILTER_CGEN_MORE,
BTRFS_LIST_FILTER_TOPID_EQUAL,
BTRFS_LIST_FILTER_MAX,
};
enum btrfs_list_comp_enum {
BTRFS_LIST_COMP_ROOTID,
BTRFS_LIST_COMP_OGEN,
BTRFS_LIST_COMP_GEN,
BTRFS_LIST_COMP_PATH,
BTRFS_LIST_COMP_MAX,
};
int btrfs_list_parse_sort_string(char *optarg,
struct btrfs_list_comparer_set **comps);
int btrfs_list_parse_filter_string(char *optarg,
struct btrfs_list_filter_set **filters,
enum btrfs_list_filter_enum type);
void btrfs_list_setup_print_column(enum btrfs_list_column_enum column);
struct btrfs_list_filter_set *btrfs_list_alloc_filter_set(void);
void btrfs_list_free_filter_set(struct btrfs_list_filter_set *filter_set);
int btrfs_list_setup_filter(struct btrfs_list_filter_set **filter_set,
enum btrfs_list_filter_enum filter, u64 data);
struct btrfs_list_comparer_set *btrfs_list_alloc_comparer_set(void);
void btrfs_list_free_comparer_set(struct btrfs_list_comparer_set *comp_set);
int btrfs_list_setup_comparer(struct btrfs_list_comparer_set **comp_set,
enum btrfs_list_comp_enum comparer,
int is_descending);
int btrfs_list_subvols(int fd, struct btrfs_list_filter_set *filter_set,
struct btrfs_list_comparer_set *comp_set,
int is_tab_result);
int btrfs_list_find_updated_files(int fd, u64 root_id, u64 oldest_gen);
int btrfs_list_get_default_subvolume(int fd, u64 *default_id);
char *btrfs_list_path_for_root(int fd, u64 root);
u64 btrfs_list_get_path_rootid(int fd);