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 4095
27 struct btrfs_ioctl_vol_args {
28 char name[BTRFS_PATH_NAME_MAX + 1];
31 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
32 struct btrfs_ioctl_vol_args)
33 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
34 struct btrfs_ioctl_vol_args)
35 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
36 struct btrfs_ioctl_vol_args)
37 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
38 struct btrfs_ioctl_vol_args)
39 /* trans start and trans end are dangerous, and only for
40 * use by applications that know how to avoid the
43 #define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6)
44 #define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7)
45 #define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8)
47 #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
48 #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
49 struct btrfs_ioctl_vol_args)
50 #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
51 struct btrfs_ioctl_vol_args)
52 #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
53 struct btrfs_ioctl_vol_args)