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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.
 */
#ident	"$Revision: 1.41 $"
#if defined(__linux__)
#include <xfs_linux.h>
#endif

#include <sys/param.h>
#include "xfs_buf.h"
#include <sys/debug.h>
#include <sys/errno.h>
#include <ksys/vfile.h>
#include <sys/kmem.h>
#include <sys/sema.h>
#include <sys/systm.h>
#include <sys/vfs.h>
#include <sys/vnode.h>
#include <sys/cmn_err.h>
#include <sys/uuid.h>
#include "xfs_macros.h"
#include "xfs_types.h"
#include "xfs_inum.h"
#include "xfs_log.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_dir.h"
#include "xfs_mount.h"
#include "xfs_ag.h"
#include "xfs_alloc_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_ialloc_btree.h"
#include "xfs_btree.h"
#include "xfs_error.h"
#include "xfs_alloc.h"
#include "xfs_ialloc.h"
#include "xfs_fsops.h"
#include "xfs_itable.h"
#include "xfs_rw.h"
#include "xfs_trans_space.h"
#include "xfs_rtalloc.h"

/*
 * File system operations
 */

STATIC int
xfs_fs_geometry(
	xfs_mount_t		*mp,
	xfs_fsop_geom_t		*geo,
	int			new_version)
{
	geo->blocksize = mp->m_sb.sb_blocksize;
	geo->rtextsize = mp->m_sb.sb_rextsize;
	geo->agblocks = mp->m_sb.sb_agblocks;
	geo->agcount = mp->m_sb.sb_agcount;
	geo->logblocks = mp->m_sb.sb_logblocks;
	geo->sectsize = mp->m_sb.sb_sectsize;
	geo->inodesize = mp->m_sb.sb_inodesize;
	geo->imaxpct = mp->m_sb.sb_imax_pct;
	geo->datablocks = mp->m_sb.sb_dblocks;
	geo->rtblocks = mp->m_sb.sb_rblocks;
	geo->rtextents = mp->m_sb.sb_rextents;
	geo->logstart = mp->m_sb.sb_logstart;
	geo->uuid = mp->m_sb.sb_uuid;
	if (new_version >= 2) {
		geo->sunit = mp->m_sb.sb_unit;
		geo->swidth = mp->m_sb.sb_width;
	}
	if (new_version >= 3) {
		geo->version = XFS_FSOP_GEOM_VERSION;
		geo->flags =
			(XFS_SB_VERSION_HASATTR(&mp->m_sb) ?
				XFS_FSOP_GEOM_FLAGS_ATTR : 0) |
			(XFS_SB_VERSION_HASNLINK(&mp->m_sb) ?
				XFS_FSOP_GEOM_FLAGS_NLINK : 0) |
			(XFS_SB_VERSION_HASQUOTA(&mp->m_sb) ?
				XFS_FSOP_GEOM_FLAGS_QUOTA : 0) |
			(XFS_SB_VERSION_HASALIGN(&mp->m_sb) ?
				XFS_FSOP_GEOM_FLAGS_IALIGN : 0) |
			(XFS_SB_VERSION_HASDALIGN(&mp->m_sb) ?
				XFS_FSOP_GEOM_FLAGS_DALIGN : 0) |
			(XFS_SB_VERSION_HASSHARED(&mp->m_sb) ?
				XFS_FSOP_GEOM_FLAGS_SHARED : 0) |
			(XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) ?
				XFS_FSOP_GEOM_FLAGS_EXTFLG : 0) |
			(XFS_SB_VERSION_HASDIRV2(&mp->m_sb) ?
				XFS_FSOP_GEOM_FLAGS_DIRV2 : 0);
		geo->logsectsize = mp->m_sb.sb_sectsize;	/* XXX */
		geo->rtsectsize = mp->m_sb.sb_sectsize;		/* XXX */
		geo->dirblocksize = mp->m_dirblksize;
	}
	return 0;
}

STATIC int
xfs_growfs_data(
	xfs_mount_t		*mp,		/* mount point for filesystem */
	xfs_growfs_data_t	*in)		/* growfs data input struct */
{
	xfs_agf_t		*agf;
	xfs_agi_t		*agi;
	xfs_agnumber_t		agno;
	xfs_extlen_t		agsize;
	xfs_alloc_rec_t		*arec;
	xfs_btree_sblock_t	*block;
	xfs_buf_t			*bp;
	int			bsize;
	int			bucket;
	int			dpct;
	int			error;
	xfs_agnumber_t		nagcount;
	xfs_rfsblock_t		nb;
	xfs_rfsblock_t		new;
	xfs_rfsblock_t		nfree;
	xfs_agnumber_t		oagcount;
	int			pct;
	xfs_sb_t		*sbp;
	int			sectbb;
	xfs_trans_t		*tp;

	nb = in->newblocks;
	pct = in->imaxpct;
	if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100)
		return XFS_ERROR(EINVAL);
	dpct = pct - mp->m_sb.sb_imax_pct;
	error = xfs_read_buf(mp, mp->m_ddev_targp, XFS_FSB_TO_BB(mp, nb) - 1, 1,
		0, &bp);
	if (error)
		return error;
	ASSERT(bp);
	xfs_buf_relse(bp);

	nagcount = (nb / mp->m_sb.sb_agblocks) +
		   ((nb % mp->m_sb.sb_agblocks) != 0);
	if (nb % mp->m_sb.sb_agblocks &&
	    nb % mp->m_sb.sb_agblocks < XFS_MIN_AG_BLOCKS) {
		nagcount--;
		nb = nagcount * mp->m_sb.sb_agblocks;
		if (nb < mp->m_sb.sb_dblocks)
			return XFS_ERROR(EINVAL);
	}
	new = nb - mp->m_sb.sb_dblocks;
	oagcount = mp->m_sb.sb_agcount;
	if (nagcount > oagcount) {
		mrlock(&mp->m_peraglock, MR_UPDATE, PINOD);
		mp->m_perag =
			kmem_realloc(mp->m_perag,
				sizeof(xfs_perag_t) * nagcount, KM_SLEEP);
		bzero(&mp->m_perag[oagcount],
			(nagcount - oagcount) * sizeof(xfs_perag_t));
		mrunlock(&mp->m_peraglock);
	}
	tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS);
	if (error = xfs_trans_reserve(tp, XFS_GROWFS_SPACE_RES(mp),
			XFS_GROWDATA_LOG_RES(mp), 0, 0, 0)) {
		xfs_trans_cancel(tp, 0);
		return error;
	}
	/* new ag's */
	sectbb = BTOBB(mp->m_sb.sb_sectsize);
	bsize = mp->m_sb.sb_blocksize;
	nfree = 0;
	for (agno = nagcount - 1; agno >= oagcount; agno--, new -= agsize) {
		/*
		 * AG freelist header block
		 */
		bp = xfs_buf_get(mp->m_ddev_targp,
				  XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR),
			          sectbb, 0);
		agf = XFS_BUF_TO_AGF(bp);
		bzero(agf, mp->m_sb.sb_sectsize);
		agf->agf_magicnum = XFS_AGF_MAGIC;
		agf->agf_versionnum = XFS_AGF_VERSION;
		agf->agf_seqno = agno;
		if (agno == nagcount - 1)
			agsize =
				nb -
				(agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks);
		else
			agsize = mp->m_sb.sb_agblocks;
		agf->agf_length = agsize;
		agf->agf_roots[XFS_BTNUM_BNOi] = XFS_BNO_BLOCK(mp);
		agf->agf_roots[XFS_BTNUM_CNTi] = XFS_CNT_BLOCK(mp);
		agf->agf_levels[XFS_BTNUM_BNOi] = 1;
		agf->agf_levels[XFS_BTNUM_CNTi] = 1;
		agf->agf_flfirst = 0;
		agf->agf_fllast = XFS_AGFL_SIZE - 1;
		agf->agf_flcount = 0;
		agf->agf_freeblks = agf->agf_length - XFS_PREALLOC_BLOCKS(mp);
		agf->agf_longest = agf->agf_freeblks;
		error = xfs_bwrite(mp, bp);
		if (error) {
			goto error0;
		}
		/*
		 * AG inode header block
		 */
		bp = xfs_buf_get(mp->m_ddev_targp,
				  XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR),
				  sectbb, 0);
		agi = XFS_BUF_TO_AGI(bp);
		bzero(agi, mp->m_sb.sb_sectsize);
		agi->agi_magicnum = XFS_AGI_MAGIC;
		agi->agi_versionnum = XFS_AGI_VERSION;
		agi->agi_seqno = agno;
		agi->agi_length = agsize;
		agi->agi_count = 0;
		agi->agi_root = XFS_IBT_BLOCK(mp);
		agi->agi_level = 1;
		agi->agi_freecount = 0;
		agi->agi_newino = NULLAGINO;
		agi->agi_dirino = NULLAGINO;
		for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++)
			agi->agi_unlinked[bucket] = NULLAGINO;
		error = xfs_bwrite(mp, bp);
		if (error) {
			goto error0;
		}
		/*
		 * BNO btree root block
		 */
		bp = xfs_buf_get(mp->m_ddev_targp,
			XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)),
			BTOBB(bsize), 0);
		block = XFS_BUF_TO_SBLOCK(bp);
		bzero(block, bsize);
		block->bb_magic = XFS_ABTB_MAGIC;
		block->bb_level = 0;
		block->bb_numrecs = 1;
		block->bb_leftsib = block->bb_rightsib = NULLAGBLOCK;
		arec = XFS_BTREE_REC_ADDR(bsize, xfs_alloc, block, 1,
			mp->m_alloc_mxr[0]);
		arec->ar_startblock = XFS_PREALLOC_BLOCKS(mp);
		arec->ar_blockcount = agsize - arec->ar_startblock;
		error = xfs_bwrite(mp, bp);
		if (error) {
			goto error0;
		}
		/*
		 * CNT btree root block
		 */
		bp = xfs_buf_get(mp->m_ddev_targp,
			XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)),
			BTOBB(bsize), 0);
		block = XFS_BUF_TO_SBLOCK(bp);
		bzero(block, bsize);
		block->bb_magic = XFS_ABTC_MAGIC;
		block->bb_level = 0;
		block->bb_numrecs = 1;
		block->bb_leftsib = block->bb_rightsib = NULLAGBLOCK;
		arec = XFS_BTREE_REC_ADDR(bsize, xfs_alloc, block, 1,
			mp->m_alloc_mxr[0]);
		arec->ar_startblock = XFS_PREALLOC_BLOCKS(mp);
		arec->ar_blockcount = agsize - arec->ar_startblock;
		nfree += arec->ar_blockcount;
		error = xfs_bwrite(mp, bp);
		if (error) {
			goto error0;
		}
		/*
		 * INO btree root block
		 */
		bp = xfs_buf_get(mp->m_ddev_targp,
			XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)),
			BTOBB(bsize), 0);
		block = XFS_BUF_TO_SBLOCK(bp);
		bzero(block, bsize);
		block->bb_magic = XFS_IBT_MAGIC;
		block->bb_level = 0;
		block->bb_numrecs = 0;
		block->bb_leftsib = block->bb_rightsib = NULLAGBLOCK;
		error = xfs_bwrite(mp, bp);
		if (error) {
			goto error0;
		}		
	}
	xfs_trans_agblocks_delta(tp, nfree);
	/*
	 * There are new blocks in the old last a.g.
	 */
	if (new) {
		/*
		 * Change the agi length.
		 */
		error = xfs_ialloc_read_agi(mp, tp, agno, &bp);
		if (error) {
			goto error0;
		}
		ASSERT(bp);
		agi = XFS_BUF_TO_AGI(bp);
		agi->agi_length += new;
		ASSERT(agno < mp->m_sb.sb_agcount - 1 ||
		       agi->agi_length == mp->m_sb.sb_agblocks);
		xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH);
		/*
		 * Change agf length.
		 */
		error = xfs_alloc_read_agf(mp, tp, agno, 0, &bp);
		if (error) {
			goto error0;
		}
		ASSERT(bp);
		agf = XFS_BUF_TO_AGF(bp);
		agf->agf_length += new;
		ASSERT(agf->agf_length == agi->agi_length);
		/*
		 * Free the new space.
		 */
		error = xfs_free_extent(tp,
			XFS_AGB_TO_FSB(mp, agno, agf->agf_length - new), new);
		if (error) {
			goto error0;
		}
	}
	if (nagcount > oagcount)
		xfs_trans_mod_sb(tp, XFS_TRANS_SB_AGCOUNT, nagcount - oagcount);
	if (nb > mp->m_sb.sb_dblocks)
		xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS,
				 nb - mp->m_sb.sb_dblocks);
	if (nfree)
		xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree);
	if (dpct)
		xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct);
	error = xfs_trans_commit(tp, 0, NULL);
	if (error) {
		return error;
	}
	if (mp->m_sb.sb_imax_pct)
		mp->m_maxicount =
			((mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct) / 100) <<
			mp->m_sb.sb_inopblog;
	else
		mp->m_maxicount = 0;
	for (agno = 1; agno < nagcount; agno++) {
	        error = xfs_read_buf(mp, mp->m_ddev_targp,
				  XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
				  BTOBB(bsize), 0, &bp);
		if (error) {
			xfs_fs_cmn_err(CE_WARN, mp,
			"error %d reading secondary superblock for ag %d\n",
				error, agno);
			break;
		}
		sbp = XFS_BUF_TO_SBP(bp);
		*sbp = mp->m_sb;
		/*
		 * If we get an error writing out the alternate superblocks,
		 * just issue a warning and continue.  The real work is
		 * already done and committed.
		 */
		if (!(error = xfs_bwrite(mp, bp))) {
			continue;
		} else {
			xfs_fs_cmn_err(CE_WARN, mp,
		"write error %d updating secondary superblock for ag %d\n",
				error, agno);
			break; /* no point in continuing */
		}
	}
	return 0;

 error0:
	xfs_trans_cancel(tp, XFS_TRANS_ABORT);
	return error;
}

STATIC int
xfs_growfs_log(
	xfs_mount_t		*mp,	/* mount point for filesystem */
	xfs_growfs_log_t	*in)	/* growfs log input struct */
{
	xfs_extlen_t		nb;

	nb = in->newblocks;
	if (nb < XFS_MIN_LOG_BLOCKS || nb < XFS_B_TO_FSB(mp, XFS_MIN_LOG_BYTES))
		return XFS_ERROR(EINVAL);
	if (nb == mp->m_sb.sb_logblocks &&
	    in->isint == (mp->m_sb.sb_logstart != 0))
		return XFS_ERROR(EINVAL);
	/*
	 * Moving the log is hard, need new interfaces to sync
	 * the log first, hold off all activity while moving it.
	 * Can have shorter or longer log in the same space,
	 * or transform internal to external log or vice versa.
	 */
	return XFS_ERROR(ENOSYS);
}

STATIC int
xfs_fs_counts(
	xfs_mount_t		*mp,
	xfs_fsop_counts_t	*cnt)
{
	int			s;

	s = XFS_SB_LOCK(mp);
	cnt->freedata = mp->m_sb.sb_fdblocks;
	cnt->freertx = mp->m_sb.sb_frextents;
	cnt->freeino = mp->m_sb.sb_ifree;
	cnt->allocino = mp->m_sb.sb_icount;
	XFS_SB_UNLOCK(mp, s);
	return 0;
}


/*
 * xfs_reserve_blocks is called to set m_resblks
 * in the in-core mount table. The number of unused reserved blocks
 * is kept in m_resbls_avail.
 *
 * Reserve the requested number of blocks if available. Otherwise return
 * as many as possible to satisfy the request. The actual number
 * reserved are returned in outval
 *
 * A null inval pointer indicates that only the current reserved blocks
 * available  should  be returned no settings are changed.
 */

STATIC int
xfs_reserve_blocks(
	xfs_mount_t *mp, 
	__uint64_t *inval, 
	xfs_fsops_getblks_t *outval)
{
	long long lcounter, delta;
	__uint64_t request;
	int s;

	/* If inval is null, report current values and return */

	if (inval == (__uint64_t *)NULL) {
		outval->resblks = mp->m_resblks;
		outval->resblks_avail = mp->m_resblks_avail;
		return(0);
	}
	
	request = *inval;
	s = XFS_SB_LOCK(mp);

	/*
	 * If our previous reservation was larger than the current value, 
	 * then move any unused blocks back to the free pool.
	 */

	if (mp->m_resblks > request) { 
		lcounter = mp->m_resblks_avail - request;
		if (lcounter  > 0) {		/* release unused blocks */
			mp->m_sb.sb_fdblocks += lcounter;
			mp->m_resblks_avail -= lcounter;
		}
		mp->m_resblks = request;
	} else {
		delta = request - mp->m_resblks;
		lcounter = mp->m_sb.sb_fdblocks;
		lcounter -= delta;
		if (lcounter < 0) {
			/* We can't satisfy the request, just get what we can */
			mp->m_resblks += mp->m_sb.sb_fdblocks;
			mp->m_resblks_avail += mp->m_sb.sb_fdblocks;
			mp->m_sb.sb_fdblocks = 0;
		} else {
			mp->m_sb.sb_fdblocks = lcounter;
			mp->m_resblks = request;
			mp->m_resblks_avail += delta;
		}
	}

	outval->resblks = mp->m_resblks;
	outval->resblks_avail = mp->m_resblks_avail;
	XFS_SB_UNLOCK(mp, s);
	return(0);
}

int					/* error status */
xfs_fsoperations(
	int		fd,		/* file descriptor for fs */
	int		opcode,		/* operation code */
	void		*in,		/* input structure */
	void		*out)		/* output structure */
{
	int		error;
	void		*inb;
	xfs_mount_t	*mp;
	void		*outb;
	static const short	cisize[XFS_FSOPS_COUNT] =
	{
		0,				/* XFS_FS_GEOMETRY_V1 */
		sizeof(xfs_growfs_data_t),	/* XFS_GROWFS_DATA */
		sizeof(xfs_growfs_log_t),	/* XFS_GROWFS_LOG */
		sizeof(xfs_growfs_rt_t),	/* XFS_GROWFS_RT */
		0,				/* XFS_FS_COUNTS */
		sizeof(__uint64_t),		/* XFS_SET_RESBLKS */
		0,				/* XFS_GET_RESBLKS */
		0,				/* XFS_FS_GEOMETRY_V2 */
		0,				/* XFS_FS_GEOMETRY */
	};
	static const short	cosize[XFS_FSOPS_COUNT] =
	{
		sizeof(xfs_fsop_geom_v1_t),	/* XFS_FS_GEOMETRY_V1 */
		0,				/* XFS_GROWFS_DATA */
		0,				/* XFS_GROWFS_LOG */
		0,				/* XFS_GROWFS_RT */
		sizeof(xfs_fsop_counts_t),	/* XFS_FS_COUNTS */
		sizeof(xfs_fsops_getblks_t),	/* XFS_SET_RESBLKS */
		sizeof(xfs_fsops_getblks_t),	/* XFS_GET_RESBLKS */
		sizeof(xfs_fsop_geom_v2_t),	/* XFS_FS_GEOMETRY_V2 */
		sizeof(xfs_fsop_geom_t),	/* XFS_FS_GEOMETRY */
	};
	static const short	wperm[XFS_FSOPS_COUNT] =
	{
		0,	/* XFS_FS_GEOMETRY_V1 */
		1,	/* XFS_GROWFS_DATA */
		1,	/* XFS_GROWFS_LOG */
		1,	/* XFS_GROWFS_RT */
		0,	/* XFS_FS_COUNTS */
		1,	/* XFS_SET_RESBLKS */
		0,  	/* XFS_GET_RESBLKS */
		0,	/* XFS_FS_GEOMETRY_V2 */
		0,	/* XFS_FS_GEOMETRY */
	};


	if (opcode < 0 || opcode >= XFS_FSOPS_COUNT)
		return XFS_ERROR(EINVAL);
	if (error = xfs_fd_to_mp(fd, wperm[opcode], &mp, wperm[opcode]))
		return error;
	if (XFS_FORCED_SHUTDOWN(mp))
		return (EIO);

	if (cisize[opcode]) {
		inb = kmem_alloc(cisize[opcode], KM_SLEEP);
		if (copyin(in, inb, cisize[opcode])) {
			kmem_free(inb, cisize[opcode]);
			return XFS_ERROR(EFAULT);
		}
	} else
		inb = NULL;
	if (cosize[opcode])
		outb = kmem_alloc(cosize[opcode], KM_SLEEP);
	else
		outb = NULL;
	switch (opcode)
	{
	case XFS_FS_GEOMETRY_V1:
		error = xfs_fs_geometry(mp, (xfs_fsop_geom_t *)outb, 1);
		break;
	case XFS_FS_GEOMETRY_V2:
		error = xfs_fs_geometry(mp, (xfs_fsop_geom_t *)outb, 2);
		break;
	case XFS_FS_GEOMETRY:
		error = xfs_fs_geometry(mp, (xfs_fsop_geom_t *)outb, 3);
		break;
	case XFS_GROWFS_DATA:
		if (!cpsema(&mp->m_growlock))
			return XFS_ERROR(EWOULDBLOCK);
		error = xfs_growfs_data(mp, (xfs_growfs_data_t *)inb);
		vsema(&mp->m_growlock);
		break;
	case XFS_GROWFS_LOG:
		if (!cpsema(&mp->m_growlock))
			return XFS_ERROR(EWOULDBLOCK);
		error = xfs_growfs_log(mp, (xfs_growfs_log_t *)inb);
		vsema(&mp->m_growlock);
		break;
	case XFS_GROWFS_RT:
		if (!cpsema(&mp->m_growlock))
			return XFS_ERROR(EWOULDBLOCK);
		error = xfs_growfs_rt(mp, (xfs_growfs_rt_t *)inb);
		vsema(&mp->m_growlock);
		break;
	case XFS_FS_COUNTS:
		error = xfs_fs_counts(mp, (xfs_fsop_counts_t *)outb);
		break;
	case XFS_SET_RESBLKS:
		error = xfs_reserve_blocks(mp, (__uint64_t *)inb, 
					(xfs_fsops_getblks_t *)outb);
		break;
	case XFS_GET_RESBLKS:
		error = xfs_reserve_blocks(mp, (__uint64_t *)NULL, 
					(xfs_fsops_getblks_t *)outb);
		break;
	default:
		error = XFS_ERROR(EINVAL);
		break;
	}
	if (inb)
		kmem_free(inb, cisize[opcode]);
	if (!error && outb) {
		if (copyout(outb, out, cosize[opcode]))
			error = XFS_ERROR(EFAULT);
		kmem_free(outb, cosize[opcode]);
	}
	return error;
}