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Initial revision

#ident	"$Revision$"

#include <sys/param.h>
#include <sys/buf.h>
#include <sys/errno.h>
#include <sys/immu.h>
#include <sys/kmem.h>
#include <sys/sema.h>
#include <sys/time.h>
#ifndef SIM
#include <sys/systm.h>
#endif
#include "xfs_types.h"
#include "xfs_inum.h"
#include "xfs_log.h"
#include "xfs_trans.h"
#include "xfs_sb.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_dinode.h"
#include "xfs_inode_item.h"
#include "xfs_inode.h"
#include "xfs_ialloc.h"
#include "xfs_itable.h"
#ifdef SIM
#include "sim.h"
#endif

/*
 * Return stat information in bulk (by-inode) for the filesystem.
 */
int					/* error status */
xfs_bulkstat(
	xfs_mount_t	*mp,		/* mount point for filesystem */
	xfs_trans_t	*tp,		/* transaction pointer */
	ino64_t		*lastino,	/* last inode returned */
	int		*count,		/* size of buffer/count returned */
	caddr_t		ubuffer)	/* buffer with inode stats */
{
	return EINVAL;		/* not yet implemented */
}

/*
 * Return inode number table for the filesystem.
 */
int					/* error status */
xfs_inumbers(
	xfs_mount_t	*mp,		/* mount point for filesystem */
	xfs_trans_t	*tp,		/* transaction pointer */
	ino64_t		*lastino,	/* last inode returned */
	int		*count,		/* size of buffer/count returned */
	caddr_t		ubuffer)	/* buffer with inode descriptions */
{
	buf_t		*agbp;
	xfs_agi_t	*agi;
	xfs_agino_t	agino;
	xfs_agnumber_t	agno;
	int		bcount;
	xfs_inogrp_t	*buffer;
	int		bufidx;
	xfs_btree_cur_t	*cur;
	int		error;
	__int32_t	gcnt;
	xfs_inofree_t	gfree;
	xfs_agino_t	gino;
	xfs_ino_t	ino;
	int		left;

	ino = (xfs_ino_t)*lastino;
	agno = XFS_INO_TO_AGNO(mp, ino);
	agino = XFS_INO_TO_AGINO(mp, ino);
	left = *count;
	*count = 0;
	bcount = MIN(left, NBPP / sizeof(*buffer));
	buffer = kmem_alloc(bcount * sizeof(*buffer), KM_SLEEP);
	error = bufidx = 0;
	while (left > 0 && agno < mp->m_sb.sb_agcount) {
		if (agino == 0) {
			agbp = xfs_ialloc_read_agi(mp, tp, agno);
			cur = xfs_btree_init_cursor(mp, tp, agbp, agno,
				XFS_BTNUM_INO, (xfs_inode_t *)0);
			(void)xfs_inobt_lookup_ge(cur, 0, 0, 0);
		}
		if (!xfs_inobt_get_rec(cur, &gino, &gcnt, &gfree)) {
			xfs_trans_brelse(tp, agbp);
			agbp = NULL;
			xfs_btree_del_cursor(cur);
			cur = NULL;
			agno++;
			agino = 0;
			continue;
		}
		agino = gino + XFS_INODES_PER_CHUNK - 1;
		buffer[bufidx].xi_startino = XFS_AGINO_TO_INO(mp, agno, gino);
		buffer[bufidx].xi_alloccount = XFS_INODES_PER_CHUNK - gcnt;
		buffer[bufidx].xi_allocmask = ~gfree;
		bufidx++;
		left--;
		if (bufidx == bcount) {
			if (copyout((caddr_t)buffer, ubuffer, bufidx * sizeof(*buffer))) {
				error = EFAULT;
				break;
			}
			ubuffer += bufidx * sizeof(*buffer);
			*count += bufidx;
			bufidx = 0;
		}
		(void)xfs_inobt_increment(cur, 0);
	}
	if (bufidx) {
		if (copyout((caddr_t)buffer, ubuffer, bufidx * sizeof(*buffer)))
			error = EFAULT;
		else
			*count += bufidx;
	}
	if (!error)
		*lastino = XFS_AGINO_TO_INO(mp, agno, agino);
	kmem_free(buffer, bcount * sizeof(*buffer));
	if (cur)
		xfs_btree_del_cursor(cur);
	if (agbp)
		xfs_trans_brelse(tp, agbp);
	return error;
}