blob: bc49914475ebbebc5271f3d26d486d730610178d [file] [log] [blame]
Chris Mason6cbd5572007-06-12 09:07:21 -04001/*
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
Chris Masonc5739bb2007-04-10 09:27:04 -040019#ifndef __IOCTL_
20#define __IOCTL_
21#include <linux/ioctl.h>
22
23#define BTRFS_IOCTL_MAGIC 0x94
24#define BTRFS_VOL_NAME_MAX 255
Chris Masonc071fcf2009-01-16 11:59:08 -050025#define BTRFS_PATH_NAME_MAX 4087
Chris Mason8a4b83c2008-03-24 15:02:07 -040026
Chris Masonc071fcf2009-01-16 11:59:08 -050027/* this should be 4k */
Chris Masonc5739bb2007-04-10 09:27:04 -040028struct btrfs_ioctl_vol_args {
Chris Mason3de45862008-11-17 21:02:50 -050029 __s64 fd;
Chris Mason8a4b83c2008-03-24 15:02:07 -040030 char name[BTRFS_PATH_NAME_MAX + 1];
Chris Masonc5739bb2007-04-10 09:27:04 -040031};
32
Chris Masonc071fcf2009-01-16 11:59:08 -050033struct btrfs_ioctl_clone_range_args {
34 __s64 src_fd;
35 __u64 src_offset, src_length;
36 __u64 dest_offset;
37};
38
Chris Masonc5739bb2007-04-10 09:27:04 -040039#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
40 struct btrfs_ioctl_vol_args)
Chris Mason6702ed42007-08-07 16:15:09 -040041#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
Chris Mason8352d8a2007-04-12 10:43:05 -040042 struct btrfs_ioctl_vol_args)
Chris Masonedbd8d42007-12-21 16:27:24 -050043#define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
44 struct btrfs_ioctl_vol_args)
Chris Mason8a4b83c2008-03-24 15:02:07 -040045#define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
46 struct btrfs_ioctl_vol_args)
Sage Weil6bf13c02008-06-10 10:07:39 -040047/* trans start and trans end are dangerous, and only for
48 * use by applications that know how to avoid the
49 * resulting deadlocks
50 */
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)
54
Sage Weilf2eb0a22008-05-02 14:43:14 -040055#define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
Chris Mason788f20e2008-04-28 15:29:42 -040056#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)
Sage Weilc5c9cd42008-11-12 14:32:25 -050062
63#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
64 struct btrfs_ioctl_clone_range_args)
65
Chris Mason3de45862008-11-17 21:02:50 -050066#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
67 struct btrfs_ioctl_vol_args)
Yan, Zheng76dda932009-09-21 16:00:26 -040068#define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
69 struct btrfs_ioctl_vol_args)
Chris Masonc5739bb2007-04-10 09:27:04 -040070#endif