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