2 * Copyright (C) 2007 Oracle. All rights reserved.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public
14 * License along with this program; if not, write to the
15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 * Boston, MA 021110-1307, USA.
26 #define BTRFS_MKFS_SYSTEM_GROUP_SIZE (4 * 1024 * 1024)
28 #define BTRFS_SCAN_PROC (1ULL << 0)
29 #define BTRFS_SCAN_DEV (1ULL << 1)
30 #define BTRFS_SCAN_MOUNTED (1ULL << 2)
31 #define BTRFS_SCAN_LBLKID (1ULL << 3)
33 #define BTRFS_UPDATE_KERNEL 1
35 #define BTRFS_ARG_UNKNOWN 0
36 #define BTRFS_ARG_MNTPOINT 1
37 #define BTRFS_ARG_UUID 2
38 #define BTRFS_ARG_BLKDEV 3
40 #define BTRFS_UUID_UNPARSED_SIZE 37
42 int make_btrfs(int fd
, const char *device
, const char *label
,
43 u64 blocks
[6], u64 num_bytes
, u32 nodesize
,
44 u32 leafsize
, u32 sectorsize
, u32 stripesize
, u64 features
);
45 int btrfs_make_root_dir(struct btrfs_trans_handle
*trans
,
46 struct btrfs_root
*root
, u64 objectid
);
47 int btrfs_prepare_device(int fd
, char *file
, int zero_end
, u64
*block_count_ret
,
48 u64 max_block_count
, int *mixed
, int discard
);
49 int btrfs_add_to_fsid(struct btrfs_trans_handle
*trans
,
50 struct btrfs_root
*root
, int fd
, char *path
,
51 u64 block_count
, u32 io_width
, u32 io_align
,
53 int btrfs_scan_for_fsid(int run_ioctls
);
54 void btrfs_register_one_device(char *fname
);
55 int btrfs_scan_one_dir(char *dirname
, int run_ioctl
);
56 int check_mounted(const char *devicename
);
57 int check_mounted_where(int fd
, const char *file
, char *where
, int size
,
58 struct btrfs_fs_devices
**fs_devices_mnt
);
59 int btrfs_device_already_in_root(struct btrfs_root
*root
, int fd
,
62 int pretty_size_snprintf(u64 size
, char *str
, size_t str_bytes
);
63 #define pretty_size(size) \
65 static __thread char _str[24]; \
66 (void)pretty_size_snprintf((size), _str, sizeof(_str)); \
70 int get_mountpt(char *dev
, char *mntpt
, size_t size
);
71 int btrfs_scan_block_devices(int run_ioctl
);
72 u64
parse_size(char *s
);
73 u64
arg_strtou64(const char *str
);
74 int open_file_or_dir(const char *fname
, DIR **dirstream
);
75 int open_file_or_dir3(const char *fname
, DIR **dirstream
, int open_flags
);
76 void close_file_or_dir(int fd
, DIR *dirstream
);
77 int get_fs_info(char *path
, struct btrfs_ioctl_fs_info_args
*fi_args
,
78 struct btrfs_ioctl_dev_info_args
**di_ret
);
79 int get_label(const char *btrfs_dev
, char *label
);
80 int set_label(const char *btrfs_dev
, const char *label
);
82 char *__strncpy__null(char *dest
, const char *src
, size_t n
);
83 int is_block_device(const char *file
);
84 int is_mount_point(const char *file
);
85 int open_path_or_dev_mnt(const char *path
, DIR **dirstream
);
86 u64
btrfs_device_size(int fd
, struct stat
*st
);
87 /* Helper to always get proper size of the destination string */
88 #define strncpy_null(dest, src) __strncpy__null(dest, src, sizeof(dest))
89 int test_dev_for_mkfs(char *file
, int force_overwrite
, char *estr
);
90 int scan_for_btrfs(int where
, int update_kernel
);
91 int get_label_mounted(const char *mount_path
, char *labelp
);
92 int test_num_disk_vs_raid(u64 metadata_profile
, u64 data_profile
,
93 u64 dev_cnt
, int mixed
, char *estr
);
94 int is_vol_small(char *file
);
95 int csum_tree_block(struct btrfs_root
*root
, struct extent_buffer
*buf
,
97 int ask_user(char *question
);
98 int lookup_ino_rootid(int fd
, u64
*rootid
);
99 int btrfs_scan_lblkid(int update_kernel
);
100 int get_btrfs_mount(const char *dev
, char *mp
, size_t mp_size
);
101 int find_mount_root(const char *path
, char **mount_root
);
102 int get_device_info(int fd
, u64 devid
,
103 struct btrfs_ioctl_dev_info_args
*di_args
);