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.
21 #include <linux/ioctl.h>
23 #define BTRFS_IOCTL_MAGIC 0x94
24 #define BTRFS_VOL_NAME_MAX 255
25 #define BTRFS_PATH_NAME_MAX 3072
27 struct btrfs_ioctl_vol_args {
29 char name[BTRFS_PATH_NAME_MAX + 1];
32 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
33 struct btrfs_ioctl_vol_args)
34 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
35 struct btrfs_ioctl_vol_args)
36 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
37 struct btrfs_ioctl_vol_args)
38 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
39 struct btrfs_ioctl_vol_args)
40 /* trans start and trans end are dangerous, and only for
41 * use by applications that know how to avoid the
44 #define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6)
45 #define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7)
46 #define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8)
48 #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
49 #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
50 struct btrfs_ioctl_vol_args)
51 #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
52 struct btrfs_ioctl_vol_args)
53 #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
54 struct btrfs_ioctl_vol_args)
55 struct btrfs_ioctl_clone_range_args {
57 __u64 src_offset, src_length;
61 #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
62 struct btrfs_ioctl_clone_range_args)
64 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
65 struct btrfs_ioctl_vol_args)