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-rw-r--r--fs/btrfs/ioctl.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h
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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 __IOCTL_
20#define __IOCTL_
21#include <linux/ioctl.h>
22
23#define BTRFS_IOCTL_MAGIC 0x94
24#define BTRFS_VOL_NAME_MAX 255
25#define BTRFS_PATH_NAME_MAX 3072
26
27struct btrfs_ioctl_vol_args {
28 __s64 fd;
29 char name[BTRFS_PATH_NAME_MAX + 1];
30};
31
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
42 * resulting deadlocks
43 */
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)
47
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)
55struct btrfs_ioctl_clone_range_args {
56 __s64 src_fd;
57 __u64 src_offset, src_length;
58 __u64 dest_offset;
59};
60
61#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
62 struct btrfs_ioctl_clone_range_args)
63
64#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
65 struct btrfs_ioctl_vol_args)
66
67#endif