utils.h

   1 /*
   2  * Copyright (C) 2007 Oracle.  All rights reserved.
   3  *
   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.
   7  *
   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.
  12  *
  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.
  17  */
  18
  19 #ifndef __UTILS__
  20 #define __UTILS__
  21
  22 #define BTRFS_MKFS_SYSTEM_GROUP_SIZE (4 * 1024 * 1024)
  23
  24 int make_btrfs(int fd, const char *device, const char *label,
  25                u64 blocks[6], u64 num_bytes, u32 nodesize,
  26                u32 leafsize, u32 sectorsize, u32 stripesize);
  27 int btrfs_make_root_dir(struct btrfs_trans_handle *trans,
  28                         struct btrfs_root *root, u64 objectid);
  29 int btrfs_prepare_device(int fd, char *file, int zero_end,
  30                          u64 *block_count_ret, int *mixed);
  31 int __btrfs_prepare_device(int fd, char *file, int zero_end,
  32                          u64 *block_count_ret, int *mixed, int nodiscard);
  33 int btrfs_add_to_fsid(struct btrfs_trans_handle *trans,
  34                       struct btrfs_root *root, int fd, char *path,
  35                       u64 block_count, u32 io_width, u32 io_align,
  36                       u32 sectorsize);
  37 int btrfs_scan_for_fsid(struct btrfs_fs_devices *fs_devices, u64 total_devs,
  38                         int run_ioctls);
  39 void btrfs_register_one_device(char *fname);
  40 int btrfs_scan_one_dir(char *dirname, int run_ioctl);
  41 int check_mounted(const char *devicename);
  42 int check_mounted_where(int fd, const char *file, char *where, int size,
  43                         struct btrfs_fs_devices **fs_devices_mnt);
  44 int btrfs_device_already_in_root(struct btrfs_root *root, int fd,
  45                                  int super_offset);
  46 char *pretty_sizes(u64 size);
  47 int check_label(char *input);
  48 int get_mountpt(char *dev, char *mntpt, size_t size);
  49
  50 int btrfs_scan_block_devices(int run_ioctl);
  51 #endif