btrfs-progs/common/device-scan.h
David Sterba c3ee6a8a09 btrfs-progs: unify GPL header comments
Add the GPL v2 header to files where it was missing and is not from an
external source, update to the most recent version with the address.

Signed-off-by: David Sterba <dsterba@suse.com>
2021-09-07 13:58:44 +02:00

64 lines
1.8 KiB
C

/*
* 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.
*/
#ifndef __DEVICE_SCAN_H__
#define __DEVICE_SCAN_H__
#include "kerncompat.h"
#include <dirent.h>
#include "ioctl.h"
#define BTRFS_SCAN_MOUNTED (1ULL << 0)
#define BTRFS_SCAN_LBLKID (1ULL << 1)
#define BTRFS_UPDATE_KERNEL 1
#define BTRFS_ARG_UNKNOWN 0
#define BTRFS_ARG_MNTPOINT 1
#define BTRFS_ARG_UUID 2
#define BTRFS_ARG_BLKDEV 3
#define BTRFS_ARG_REG 4
#define SEEN_FSID_HASH_SIZE 256
struct btrfs_root;
struct btrfs_trans_handle;
struct seen_fsid;
struct DIR;
struct seen_fsid {
u8 fsid[BTRFS_FSID_SIZE];
struct seen_fsid *next;
DIR *dirstream;
int fd;
};
int btrfs_scan_devices(int verbose);
int btrfs_register_one_device(const char *fname);
int btrfs_register_all_devices(void);
int btrfs_add_to_fsid(struct btrfs_trans_handle *trans,
struct btrfs_root *root, int fd, const char *path,
u64 device_total_bytes, u32 io_width, u32 io_align,
u32 sectorsize);
int btrfs_device_already_in_root(struct btrfs_root *root, int fd,
int super_offset);
int is_seen_fsid(u8 *fsid, struct seen_fsid *seen_fsid_hash[]);
int add_seen_fsid(u8 *fsid, struct seen_fsid *seen_fsid_hash[],
int fd, DIR *dirstream);
void free_seen_fsid(struct seen_fsid *seen_fsid_hash[]);
#endif