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 4087 26 27 /* this should be 4k */ 28 struct btrfs_ioctl_vol_args { 29 __s64 fd; 30 char name[BTRFS_PATH_NAME_MAX + 1]; 31 }; 32 33 struct btrfs_ioctl_clone_range_args { 34 __s64 src_fd; 35 __u64 src_offset, src_length; 36 __u64 dest_offset; 37 }; 38 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 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 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) 62 63 #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \ 64 struct btrfs_ioctl_clone_range_args) 65 66 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \ 67 struct btrfs_ioctl_vol_args) 68 #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \ 69 struct btrfs_ioctl_vol_args) 70 #endif 71