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 1
29 #define BTRFS_SCAN_DEV 2
30 #define BTRFS_SCAN_LBLKID (1ULL << 3)
32 int make_btrfs(int fd, const char *device, const char *label,
33 u64 blocks[6], u64 num_bytes, u32 nodesize,
34 u32 leafsize, u32 sectorsize, u32 stripesize, u64 features);
35 int btrfs_make_root_dir(struct btrfs_trans_handle *trans,
36 struct btrfs_root *root, u64 objectid);
37 int btrfs_prepare_device(int fd, char *file, int zero_end, u64 *block_count_ret,
38 u64 max_block_count, int *mixed, int discard);
39 int btrfs_add_to_fsid(struct btrfs_trans_handle *trans,
40 struct btrfs_root *root, int fd, char *path,
41 u64 block_count, u32 io_width, u32 io_align,
43 int btrfs_scan_for_fsid(int run_ioctls);
44 void btrfs_register_one_device(char *fname);
45 int btrfs_scan_one_dir(char *dirname, int run_ioctl);
46 int check_mounted(const char *devicename);
47 int check_mounted_where(int fd, const char *file, char *where, int size,
48 struct btrfs_fs_devices **fs_devices_mnt);
49 int btrfs_device_already_in_root(struct btrfs_root *root, int fd,
52 int pretty_size_snprintf(double size, char *str, size_t str_bytes);
53 #define pretty_size(size) \
55 static __thread char _str[24]; \
56 (void)pretty_size_snprintf((size), _str, sizeof(_str)); \
60 int get_mountpt(char *dev, char *mntpt, size_t size);
61 int btrfs_scan_block_devices(int run_ioctl);
62 u64 parse_size(char *s);
63 int open_file_or_dir(const char *fname, DIR **dirstream);
64 void close_file_or_dir(int fd, DIR *dirstream);
65 int get_fs_info(char *path, struct btrfs_ioctl_fs_info_args *fi_args,
66 struct btrfs_ioctl_dev_info_args **di_ret);
67 int get_label(const char *btrfs_dev);
68 int set_label(const char *btrfs_dev, const char *label);
70 char *__strncpy__null(char *dest, const char *src, size_t n);
71 int is_block_device(const char *file);
72 int open_path_or_dev_mnt(const char *path, DIR **dirstream);
73 u64 btrfs_device_size(int fd, struct stat *st);
74 /* Helper to always get proper size of the destination string */
75 #define strncpy_null(dest, src) __strncpy__null(dest, src, sizeof(dest))
76 int test_dev_for_mkfs(char *file, int force_overwrite, char *estr);
77 int scan_for_btrfs(int where, int update_kernel);
78 int get_label_mounted(const char *mount_path, char *labelp);
79 int test_num_disk_vs_raid(u64 metadata_profile, u64 data_profile,
80 u64 dev_cnt, int mixed, char *estr);
81 int is_vol_small(char *file);
82 int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf,
84 int ask_user(char *question);
85 int lookup_ino_rootid(int fd, u64 *rootid);
86 int btrfs_scan_lblkid(int update_kernel);