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Encumbrance review done.
Add copyright and license words consistent with GPL.
Refer to http://fsg.melbourne.sgi.com/reviews/ for details.

There is a slight change in the license terms and conditions words
to go with the copyrights, so most of the files are not getting
new GPL's, just updated versions ... but there are 20-30 more files
here as well.

/*
 * Copyright (C) 1999 Silicon Graphics, Inc.  All Rights Reserved.
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
 */
#ifndef _FS_XFS_GROW_H
#define	_FS_XFS_GROW_H

#ident	"$Revision: 1.11 $"

/*
 * File system growth interfaces
 */

#define	XFS_FS_GEOMETRY_V1	0	/* get filesystem geometry pre-irix6.5*/
#define	XFS_GROWFS_DATA		1	/* grow data area */
#define	XFS_GROWFS_LOG		2	/* grow log, new log is internal */
#define	XFS_GROWFS_RT		3	/* grow realtime area */
#define	XFS_FS_COUNTS		4	/* get filesystem dynamic counts */
#define	XFS_SET_RESBLKS		5	/* set reserved block count */
#define	XFS_GET_RESBLKS		6	/* get reserved block counts */
#define	XFS_FS_GEOMETRY_V2	7	/* get filesystem geometry irix6.5 */
#define	XFS_FS_GEOMETRY		8	/* get filesystem geometry>=irix6.5.3 */
#define	XFS_FSOPS_COUNT		9	/* count of operations */

/*
 * Minimum and maximum sizes need for growth checks
 */
#define	XFS_MIN_LOG_BLOCKS	512
#define	XFS_MIN_LOG_BYTES	(256 * 1024)
#define	XFS_MIN_AG_BLOCKS	64
#define	XFS_MAX_LOG_BLOCKS	(64 * 1024)
#define	XFS_MAX_LOG_BYTES	(128 * 1024 * 1024)

/*
 * Input and output structures
 */

/*
 * Output for XFS_FS_GEOMETRY
 */
typedef struct xfs_fsop_geom
{
	__uint32_t	blocksize;	/* filesystem (data) block size */
	__uint32_t	rtextsize;	/* realtime extent size */
	__uint32_t	agblocks;	/* fsblocks in an allocation group */
	__uint32_t	agcount;	/* number of allocation groups */
	__uint32_t	logblocks;	/* fsblocks in the log */
	__uint32_t	sectsize;	/* (data) sector size, bytes */
	__uint32_t	inodesize;	/* inode size in bytes */
	__uint32_t	imaxpct;	/* max allowed space for inodes (%) */
	__uint64_t	datablocks;	/* fsblocks in the data subvolume */
	__uint64_t	rtblocks;	/* fsblocks in the realtime subvolume */
	__uint64_t	rtextents;	/* rt extents in the realtime subvol */
	__uint64_t	logstart;	/* starting fsblock of the log */
	uuid_t		uuid;		/* unique id of the filesystem */
	__uint32_t	sunit;		/* stripe unit, fsblocks */
	__uint32_t	swidth;		/* stripe width, fsblocks */
	__int32_t	version;	/* structure version */
	__uint32_t	flags;		/* superblock version flags */
	__uint32_t	logsectsize;	/* log sector size, bytes */
	__uint32_t	rtsectsize;	/* realtime sector size, bytes */
	__uint32_t	dirblocksize;	/* directory block size, bytes */
} xfs_fsop_geom_t;
#define	XFS_FSOP_GEOM_VERSION	0

#define	XFS_FSOP_GEOM_FLAGS_ATTR	0x01	/* attributes in use */
#define	XFS_FSOP_GEOM_FLAGS_NLINK	0x02	/* 32-bit nlink values */
#define	XFS_FSOP_GEOM_FLAGS_QUOTA	0x04	/* quota accounting enabled */
#define	XFS_FSOP_GEOM_FLAGS_IALIGN	0x08	/* inode alignment */
#define	XFS_FSOP_GEOM_FLAGS_DALIGN	0x10	/* large data alignment */
#define	XFS_FSOP_GEOM_FLAGS_SHARED	0x20	/* read-only shared */
#define	XFS_FSOP_GEOM_FLAGS_EXTFLG	0x40	/* special extent flag */
#define	XFS_FSOP_GEOM_FLAGS_DIRV2	0x80	/* directory version 2 */

/*
 * This version has two new fields sunit and swidth. 
 * Added in irix6.5
 */
typedef struct xfs_fsop_geom_v2
{
	__uint32_t	blocksize;	/* filesystem (data) block size */
	__uint32_t	rtextsize;	/* realtime extent size */
	__uint32_t	agblocks;	/* fsblocks in an allocation group */
	__uint32_t	agcount;	/* number of allocation groups */
	__uint32_t	logblocks;	/* fsblocks in the log */
	__uint32_t	sectsize;	/* (data) sector size, bytes */
	__uint32_t	inodesize;	/* inode size in bytes */
	__uint32_t	imaxpct;	/* max allowed space for inodes (%) */
	__uint64_t	datablocks;	/* fsblocks in the data subvolume */
	__uint64_t	rtblocks;	/* fsblocks in the realtime subvolume */
	__uint64_t	rtextents;	/* rt extents in the realtime subvol */
	__uint64_t	logstart;	/* starting fsblock of the log */
	uuid_t		uuid;		/* unique id of the filesystem */
	__uint32_t	sunit;		/* stripe unit, fsblocks */
	__uint32_t	swidth;		/* stripe width, fsblocks */
} xfs_fsop_geom_v2_t;

/*
 * This version of xfs_fsop_geom existed prior to Irix 6.5
 */
typedef struct xfs_fsop_geom_v1
{
	__uint32_t	blocksize;	/* filesystem (data) block size */
	__uint32_t	rtextsize;	/* realtime extent size */
	__uint32_t	agblocks;	/* fsblocks in an allocation group */
	__uint32_t	agcount;	/* number of allocation groups */
	__uint32_t	logblocks;	/* fsblocks in the log */
	__uint32_t	sectsize;	/* (data) sector size, bytes */
	__uint32_t	inodesize;	/* inode size in bytes */
	__uint32_t	imaxpct;	/* max allowed space for inodes (%) */
	__uint64_t	datablocks;	/* fsblocks in the data subvolume */
	__uint64_t	rtblocks;	/* fsblocks in the realtime subvolume */
	__uint64_t	rtextents;	/* rt extents in the realtime subvol */
	__uint64_t	logstart;	/* starting fsblock of the log */
	uuid_t		uuid;		/* unique id of the filesystem */
} xfs_fsop_geom_v1_t;

/* Output for XFS_FS_COUNTS */
typedef struct xfs_fsop_counts
{
	__uint64_t	freedata;	/* free data section blocks */
	__uint64_t	freertx;	/* free rt extents */
	__uint64_t	freeino;	/* free inodes */
	__uint64_t	allocino;	/* total allocated inodes */
} xfs_fsop_counts_t;

/* Output for XFS_GET_RESBLKS */
typedef struct xfs_fsop_get_resblks
{
	__uint64_t  resblks;
	__uint64_t  resblks_avail;
} xfs_fsops_getblks_t;

/* Input for growfs data op */
typedef struct xfs_growfs_data
{
	__uint64_t	newblocks;	/* new data subvol size, fsblocks */
	__uint32_t	imaxpct;	/* new inode space percentage limit */
} xfs_growfs_data_t;

/* Input for growfs log op */
typedef struct xfs_growfs_log
{
	__uint32_t	newblocks;	/* new log size, fsblocks */
	__int32_t	isint;		/* 1 if new log is internal */
} xfs_growfs_log_t;

/* Input for growfs rt op */
typedef struct xfs_growfs_rt
{
	__uint64_t	newblocks;	/* new realtime size, fsblocks */
	__uint32_t	extsize;	/* new realtime extent size, fsblocks */
} xfs_growfs_rt_t;

#ifdef _KERNEL
int					/* error status */
xfs_fsoperations(
	int		fd,		/* file descriptor for fs */
	int		opcode,		/* operation code */
	void		*in,		/* input structure */
	void		*out);		/* output structure */
#endif	/* _KERNEL */

#endif	/* _FS_XFS_GROW_H */