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 4087
27 /* this should be 4k */
28 struct btrfs_ioctl_vol_args {
30 char name[BTRFS_PATH_NAME_MAX + 1];
33 struct btrfs_ioctl_clone_range_args {
35 __u64 src_offset, src_length;
39 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
40 struct btrfs_ioctl_vol_args)
41 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
42 struct btrfs_ioctl_vol_args)
43 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
44 struct btrfs_ioctl_vol_args)
45 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
46 struct btrfs_ioctl_vol_args)
47 /* trans start and trans end are dangerous, and only for
48 * use by applications that know how to avoid the
51 #define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6)
52 #define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7)
53 #define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8)
55 #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
56 #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
57 struct btrfs_ioctl_vol_args)
58 #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
59 struct btrfs_ioctl_vol_args)
60 #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
61 struct btrfs_ioctl_vol_args)
63 #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
64 struct btrfs_ioctl_clone_range_args)
66 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
67 struct btrfs_ioctl_vol_args)