fs/btrfs/ioctl.h

   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 struct btrfs_ioctl_vol_args {
  26         char name[BTRFS_VOL_NAME_MAX + 1];
  27 };
  28
  29 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
  30                                    struct btrfs_ioctl_vol_args)
  31 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
  32                                    struct btrfs_ioctl_vol_args)
  33 #endif