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/*
* 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.
*/
/*
* Defines and functions declarations for mkfs --rootdir
*/
#ifndef __BTRFS_MKFS_ROOTDIR_H__
#define __BTRFS_MKFS_ROOTDIR_H__
#include "kerncompat.h"
#include <sys/types.h>
#include <stdbool.h>
#include <limits.h>
#include "kernel-lib/list.h"
#include "kernel-shared/compression.h"
#define ZLIB_BTRFS_DEFAULT_LEVEL 3
#define ZLIB_BTRFS_MAX_LEVEL 9
#define ZSTD_BTRFS_DEFAULT_LEVEL 3
#define ZSTD_BTRFS_MAX_LEVEL 15
struct btrfs_fs_info;
struct btrfs_root;
struct rootdir_subvol {
struct list_head list;
/* The path inside the source_dir. */
char dir[PATH_MAX];
/* st_dev and st_ino is going to uniquely determine an inode inside the host fs. */
dev_t st_dev;
ino_t st_ino;
bool is_default;
bool readonly;
};
/*
* Represent a flag for specified inode at "$source_dir/$inode_path".
*/
struct rootdir_inode_flags_entry {
struct list_head list;
/* Path inside the source directory. */
char inode_path[PATH_MAX];
/* st_dev and st_ino is going to uniquely determine an inode inside the host fs. */
dev_t st_dev;
ino_t st_ino;
bool nodatacow;
bool nodatasum;
};
int btrfs_mkfs_validate_subvols(const char *source_dir, struct list_head *subvols);
int btrfs_mkfs_validate_inode_flags(const char *source_dir, struct list_head *inode_flags);
int btrfs_mkfs_fill_dir(struct btrfs_trans_handle *trans, const char *source_dir,
struct btrfs_root *root, struct list_head *subvols,
struct list_head *inode_flags_list,
enum btrfs_compression_type compression,
unsigned int compression_level, bool do_reflink);
u64 btrfs_mkfs_size_dir(const char *dir_name, u32 sectorsize, u64 min_dev_size,
u64 meta_profile, u64 data_profile);
int btrfs_mkfs_shrink_fs(struct btrfs_fs_info *fs_info, u64 *new_size_ret,
bool shrink_file_size);
#endif
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