71 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			71 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Copyright (C) 2007 Oracle.  All rights reserved.
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public
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 * License v2 as published by the Free Software Foundation.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public
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 * License along with this program; if not, write to the
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 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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 * Boston, MA 021110-1307, USA.
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 */
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#ifndef __IOCTL_
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#define __IOCTL_
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#include <linux/ioctl.h>
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#define BTRFS_IOCTL_MAGIC 0x94
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#define BTRFS_VOL_NAME_MAX 255
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#define BTRFS_PATH_NAME_MAX 4087
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/* this should be 4k */
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struct btrfs_ioctl_vol_args {
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	__s64 fd;
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	char name[BTRFS_PATH_NAME_MAX + 1];
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};
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struct btrfs_ioctl_clone_range_args {
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  __s64 src_fd;
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  __u64 src_offset, src_length;
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  __u64 dest_offset;
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};
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#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
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				   struct btrfs_ioctl_vol_args)
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#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
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				   struct btrfs_ioctl_vol_args)
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#define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
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				   struct btrfs_ioctl_vol_args)
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#define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
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				   struct btrfs_ioctl_vol_args)
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/* trans start and trans end are dangerous, and only for
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 * use by applications that know how to avoid the
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 * resulting deadlocks
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 */
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#define BTRFS_IOC_TRANS_START  _IO(BTRFS_IOCTL_MAGIC, 6)
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#define BTRFS_IOC_TRANS_END    _IO(BTRFS_IOCTL_MAGIC, 7)
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#define BTRFS_IOC_SYNC         _IO(BTRFS_IOCTL_MAGIC, 8)
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#define BTRFS_IOC_CLONE        _IOW(BTRFS_IOCTL_MAGIC, 9, int)
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#define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
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				   struct btrfs_ioctl_vol_args)
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#define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
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				   struct btrfs_ioctl_vol_args)
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#define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
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				   struct btrfs_ioctl_vol_args)
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#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
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				  struct btrfs_ioctl_clone_range_args)
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#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
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				   struct btrfs_ioctl_vol_args)
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#define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
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				struct btrfs_ioctl_vol_args)
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#endif
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