xfs: separate inode geometry

Separate the inode geometry information into a distinct structure.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

9 files changed, 134 insertions, 86 deletions

diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index 9bb3c48843ec..0e831f04725c 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -1071,7 +1071,7 @@ static inline void xfs_dinode_put_rdev(struct xfs_dinode *dip, xfs_dev_t rdev)
 #define	XFS_INO_MASK(k)			(uint32_t)((1ULL << (k)) - 1)
 #define	XFS_INO_OFFSET_BITS(mp)		(mp)->m_sb.sb_inopblog
 #define	XFS_INO_AGBNO_BITS(mp)		(mp)->m_sb.sb_agblklog
-#define	XFS_INO_AGINO_BITS(mp)		(mp)->m_agino_log
+#define	XFS_INO_AGINO_BITS(mp)		((mp)->m_ino_geo.agino_log)
 #define	XFS_INO_AGNO_BITS(mp)		(mp)->m_agno_log
 #define	XFS_INO_BITS(mp)		\
 	XFS_INO_AGNO_BITS(mp) + XFS_INO_AGINO_BITS(mp)
@@ -1694,4 +1694,40 @@ struct xfs_acl {
 #define SGI_ACL_FILE_SIZE	(sizeof(SGI_ACL_FILE)-1)
 #define SGI_ACL_DEFAULT_SIZE	(sizeof(SGI_ACL_DEFAULT)-1)
 
+struct xfs_ino_geometry {
+	/* Maximum inode count in this filesystem. */
+	uint64_t	maxicount;
+
+	/*
+	 * Desired inode cluster buffer size, in bytes.  This value is not
+	 * rounded up to at least one filesystem block.
+	 */
+	unsigned int	inode_cluster_size;
+
+	/* Inode cluster sizes, adjusted to be at least 1 fsb. */
+	unsigned int	inodes_per_cluster;
+	unsigned int	blocks_per_cluster;
+
+	/* Inode cluster alignment. */
+	unsigned int	cluster_align;
+	unsigned int	cluster_align_inodes;
+	unsigned int	inoalign_mask;	/* mask sb_inoalignmt if used */
+
+	unsigned int	inobt_mxr[2]; /* max inobt btree records */
+	unsigned int	inobt_mnr[2]; /* min inobt btree records */
+	unsigned int	inobt_maxlevels; /* max inobt btree levels. */
+
+	/* Size of inode allocations under normal operation. */
+	unsigned int	ialloc_inos;
+	unsigned int	ialloc_blks;
+
+	/* Minimum inode blocks for a sparse allocation. */
+	unsigned int	ialloc_min_blks;
+
+	/* stripe unit inode alignment */
+	unsigned int	ialloc_align;
+
+	unsigned int	agino_log;	/* #bits for agino in inum */
+};
+
 #endif /* __XFS_FORMAT_H__ */
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index fe9898875097..49f556cf244b 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -299,7 +299,7 @@ xfs_ialloc_inode_init(
 	 * sizes, manipulate the inodes in buffers  which are multiples of the
 	 * blocks size.
 	 */
-	nbufs = length / mp->m_blocks_per_cluster;
+	nbufs = length / M_IGEO(mp)->blocks_per_cluster;
 
 	/*
 	 * Figure out what version number to use in the inodes we create.  If
@@ -343,9 +343,10 @@ xfs_ialloc_inode_init(
 		 * Get the block.
 		 */
 		d = XFS_AGB_TO_DADDR(mp, agno, agbno +
-				(j * mp->m_blocks_per_cluster));
+				(j * M_IGEO(mp)->blocks_per_cluster));
 		fbuf = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
-					 mp->m_bsize * mp->m_blocks_per_cluster,
+					 mp->m_bsize *
+					 M_IGEO(mp)->blocks_per_cluster,
 					 XBF_UNMAPPED);
 		if (!fbuf)
 			return -ENOMEM;
@@ -353,7 +354,7 @@ xfs_ialloc_inode_init(
 		/* Initialize the inode buffers and log them appropriately. */
 		fbuf->b_ops = &xfs_inode_buf_ops;
 		xfs_buf_zero(fbuf, 0, BBTOB(fbuf->b_length));
-		for (i = 0; i < mp->m_inodes_per_cluster; i++) {
+		for (i = 0; i < M_IGEO(mp)->inodes_per_cluster; i++) {
 			int	ioffset = i << mp->m_sb.sb_inodelog;
 			uint	isize = xfs_dinode_size(version);
 
@@ -616,24 +617,26 @@ error:
  * Allocate new inodes in the allocation group specified by agbp.
  * Return 0 for success, else error code.
  */
-STATIC int				/* error code or 0 */
+STATIC int
 xfs_ialloc_ag_alloc(
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_buf_t	*agbp,		/* alloc group buffer */
-	int		*alloc)
+	struct xfs_trans	*tp,
+	struct xfs_buf		*agbp,
+	int			*alloc)
 {
-	xfs_agi_t	*agi;		/* allocation group header */
-	xfs_alloc_arg_t	args;		/* allocation argument structure */
-	xfs_agnumber_t	agno;
-	int		error;
-	xfs_agino_t	newino;		/* new first inode's number */
-	xfs_agino_t	newlen;		/* new number of inodes */
-	int		isaligned = 0;	/* inode allocation at stripe unit */
-					/* boundary */
-	uint16_t	allocmask = (uint16_t) -1; /* init. to full chunk */
+	struct xfs_agi		*agi;
+	struct xfs_alloc_arg	args;
+	xfs_agnumber_t		agno;
+	int			error;
+	xfs_agino_t		newino;		/* new first inode's number */
+	xfs_agino_t		newlen;		/* new number of inodes */
+	int			isaligned = 0;	/* inode allocation at stripe */
+						/* unit boundary */
+	/* init. to full chunk */
+	uint16_t		allocmask = (uint16_t) -1;
 	struct xfs_inobt_rec_incore rec;
-	struct xfs_perag *pag;
-	int		do_sparse = 0;
+	struct xfs_perag	*pag;
+	struct xfs_ino_geometry	*igeo = M_IGEO(tp->t_mountp);
+	int			do_sparse = 0;
 
 	memset(&args, 0, sizeof(args));
 	args.tp = tp;
@@ -644,7 +647,7 @@ xfs_ialloc_ag_alloc(
 #ifdef DEBUG
 	/* randomly do sparse inode allocations */
 	if (xfs_sb_version_hassparseinodes(&tp->t_mountp->m_sb) &&
-	    args.mp->m_ialloc_min_blks < args.mp->m_ialloc_blks)
+	    igeo->ialloc_min_blks < igeo->ialloc_blks)
 		do_sparse = prandom_u32() & 1;
 #endif
 
@@ -652,12 +655,12 @@ xfs_ialloc_ag_alloc(
 	 * Locking will ensure that we don't have two callers in here
 	 * at one time.
 	 */
-	newlen = args.mp->m_ialloc_inos;
-	if (args.mp->m_maxicount &&
+	newlen = igeo->ialloc_inos;
+	if (igeo->maxicount &&
 	    percpu_counter_read_positive(&args.mp->m_icount) + newlen >
-							args.mp->m_maxicount)
+							igeo->maxicount)
 		return -ENOSPC;
-	args.minlen = args.maxlen = args.mp->m_ialloc_blks;
+	args.minlen = args.maxlen = igeo->ialloc_blks;
 	/*
 	 * First try to allocate inodes contiguous with the last-allocated
 	 * chunk of inodes.  If the filesystem is striped, this will fill
@@ -667,7 +670,7 @@ xfs_ialloc_ag_alloc(
 	newino = be32_to_cpu(agi->agi_newino);
 	agno = be32_to_cpu(agi->agi_seqno);
 	args.agbno = XFS_AGINO_TO_AGBNO(args.mp, newino) +
-		     args.mp->m_ialloc_blks;
+		     igeo->ialloc_blks;
 	if (do_sparse)
 		goto sparse_alloc;
 	if (likely(newino != NULLAGINO &&
@@ -690,10 +693,10 @@ xfs_ialloc_ag_alloc(
 		 * but not to use them in the actual exact allocation.
 		 */
 		args.alignment = 1;
-		args.minalignslop = args.mp->m_cluster_align - 1;
+		args.minalignslop = igeo->cluster_align - 1;
 
 		/* Allow space for the inode btree to split. */
-		args.minleft = args.mp->m_in_maxlevels - 1;
+		args.minleft = igeo->inobt_maxlevels - 1;
 		if ((error = xfs_alloc_vextent(&args)))
 			return error;
 
@@ -720,12 +723,12 @@ xfs_ialloc_ag_alloc(
 		 * pieces, so don't need alignment anyway.
 		 */
 		isaligned = 0;
-		if (args.mp->m_sinoalign) {
+		if (igeo->ialloc_align) {
 			ASSERT(!(args.mp->m_flags & XFS_MOUNT_NOALIGN));
 			args.alignment = args.mp->m_dalign;
 			isaligned = 1;
 		} else
-			args.alignment = args.mp->m_cluster_align;
+			args.alignment = igeo->cluster_align;
 		/*
 		 * Need to figure out where to allocate the inode blocks.
 		 * Ideally they should be spaced out through the a.g.
@@ -741,7 +744,7 @@ xfs_ialloc_ag_alloc(
 		/*
 		 * Allow space for the inode btree to split.
 		 */
-		args.minleft = args.mp->m_in_maxlevels - 1;
+		args.minleft = igeo->inobt_maxlevels - 1;
 		if ((error = xfs_alloc_vextent(&args)))
 			return error;
 	}
@@ -754,7 +757,7 @@ xfs_ialloc_ag_alloc(
 		args.type = XFS_ALLOCTYPE_NEAR_BNO;
 		args.agbno = be32_to_cpu(agi->agi_root);
 		args.fsbno = XFS_AGB_TO_FSB(args.mp, agno, args.agbno);
-		args.alignment = args.mp->m_cluster_align;
+		args.alignment = igeo->cluster_align;
 		if ((error = xfs_alloc_vextent(&args)))
 			return error;
 	}
@@ -764,7 +767,7 @@ xfs_ialloc_ag_alloc(
 	 * the sparse allocation length is smaller than a full chunk.
 	 */
 	if (xfs_sb_version_hassparseinodes(&args.mp->m_sb) &&
-	    args.mp->m_ialloc_min_blks < args.mp->m_ialloc_blks &&
+	    igeo->ialloc_min_blks < igeo->ialloc_blks &&
 	    args.fsbno == NULLFSBLOCK) {
 sparse_alloc:
 		args.type = XFS_ALLOCTYPE_NEAR_BNO;
@@ -773,7 +776,7 @@ sparse_alloc:
 		args.alignment = args.mp->m_sb.sb_spino_align;
 		args.prod = 1;
 
-		args.minlen = args.mp->m_ialloc_min_blks;
+		args.minlen = igeo->ialloc_min_blks;
 		args.maxlen = args.minlen;
 
 		/*
@@ -789,7 +792,7 @@ sparse_alloc:
 		args.min_agbno = args.mp->m_sb.sb_inoalignmt;
 		args.max_agbno = round_down(args.mp->m_sb.sb_agblocks,
 					    args.mp->m_sb.sb_inoalignmt) -
-				 args.mp->m_ialloc_blks;
+				 igeo->ialloc_blks;
 
 		error = xfs_alloc_vextent(&args);
 		if (error)
@@ -1006,7 +1009,7 @@ xfs_ialloc_ag_select(
 		 * space needed for alignment of inode chunks when checking the
 		 * longest contiguous free space in the AG - this prevents us
 		 * from getting ENOSPC because we have free space larger than
-		 * m_ialloc_blks but alignment constraints prevent us from using
+		 * ialloc_blks but alignment constraints prevent us from using
 		 * it.
 		 *
 		 * If we can't find an AG with space for full alignment slack to
@@ -1015,9 +1018,9 @@ xfs_ialloc_ag_select(
 		 * if we fail allocation due to alignment issues then it is most
 		 * likely a real ENOSPC condition.
 		 */
-		ineed = mp->m_ialloc_min_blks;
+		ineed = M_IGEO(mp)->ialloc_min_blks;
 		if (flags && ineed > 1)
-			ineed += mp->m_cluster_align;
+			ineed += M_IGEO(mp)->cluster_align;
 		longest = pag->pagf_longest;
 		if (!longest)
 			longest = pag->pagf_flcount > 0;
@@ -1703,6 +1706,7 @@ xfs_dialloc(
 	int			noroom = 0;
 	xfs_agnumber_t		start_agno;
 	struct xfs_perag	*pag;
+	struct xfs_ino_geometry	*igeo = M_IGEO(mp);
 	int			okalloc = 1;
 
 	if (*IO_agbp) {
@@ -1733,9 +1737,9 @@ xfs_dialloc(
 	 * Read rough value of mp->m_icount by percpu_counter_read_positive,
 	 * which will sacrifice the preciseness but improve the performance.
 	 */
-	if (mp->m_maxicount &&
-	    percpu_counter_read_positive(&mp->m_icount) + mp->m_ialloc_inos
-							> mp->m_maxicount) {
+	if (igeo->maxicount &&
+	    percpu_counter_read_positive(&mp->m_icount) + igeo->ialloc_inos
+							> igeo->maxicount) {
 		noroom = 1;
 		okalloc = 0;
 	}
@@ -1852,7 +1856,8 @@ xfs_difree_inode_chunk(
 	if (!xfs_inobt_issparse(rec->ir_holemask)) {
 		/* not sparse, calculate extent info directly */
 		xfs_bmap_add_free(tp, XFS_AGB_TO_FSB(mp, agno, sagbno),
-				  mp->m_ialloc_blks, &XFS_RMAP_OINFO_INODES);
+				  M_IGEO(mp)->ialloc_blks,
+				  &XFS_RMAP_OINFO_INODES);
 		return;
 	}
 
@@ -2261,7 +2266,7 @@ xfs_imap_lookup(
 
 	/* check that the returned record contains the required inode */
 	if (rec.ir_startino > agino ||
-	    rec.ir_startino + mp->m_ialloc_inos <= agino)
+	    rec.ir_startino + M_IGEO(mp)->ialloc_inos <= agino)
 		return -EINVAL;
 
 	/* for untrusted inodes check it is allocated first */
@@ -2352,7 +2357,7 @@ xfs_imap(
 	 * If the inode cluster size is the same as the blocksize or
 	 * smaller we get to the buffer by simple arithmetics.
 	 */
-	if (mp->m_blocks_per_cluster == 1) {
+	if (M_IGEO(mp)->blocks_per_cluster == 1) {
 		offset = XFS_INO_TO_OFFSET(mp, ino);
 		ASSERT(offset < mp->m_sb.sb_inopblock);
 
@@ -2368,8 +2373,8 @@ xfs_imap(
 	 * find the location. Otherwise we have to do a btree
 	 * lookup to find the location.
 	 */
-	if (mp->m_inoalign_mask) {
-		offset_agbno = agbno & mp->m_inoalign_mask;
+	if (M_IGEO(mp)->inoalign_mask) {
+		offset_agbno = agbno & M_IGEO(mp)->inoalign_mask;
 		chunk_agbno = agbno - offset_agbno;
 	} else {
 		error = xfs_imap_lookup(mp, tp, agno, agino, agbno,
@@ -2381,13 +2386,13 @@ xfs_imap(
 out_map:
 	ASSERT(agbno >= chunk_agbno);
 	cluster_agbno = chunk_agbno +
-		((offset_agbno / mp->m_blocks_per_cluster) *
-		 mp->m_blocks_per_cluster);
+		((offset_agbno / M_IGEO(mp)->blocks_per_cluster) *
+		 M_IGEO(mp)->blocks_per_cluster);
 	offset = ((agbno - cluster_agbno) * mp->m_sb.sb_inopblock) +
 		XFS_INO_TO_OFFSET(mp, ino);
 
 	imap->im_blkno = XFS_AGB_TO_DADDR(mp, agno, cluster_agbno);
-	imap->im_len = XFS_FSB_TO_BB(mp, mp->m_blocks_per_cluster);
+	imap->im_len = XFS_FSB_TO_BB(mp, M_IGEO(mp)->blocks_per_cluster);
 	imap->im_boffset = (unsigned short)(offset << mp->m_sb.sb_inodelog);
 
 	/*
@@ -2409,7 +2414,7 @@ out_map:
 }
 
 /*
- * Compute and fill in value of m_in_maxlevels.
+ * Compute and fill in value of m_ino_geo.inobt_maxlevels.
  */
 void
 xfs_ialloc_compute_maxlevels(
@@ -2418,8 +2423,8 @@ xfs_ialloc_compute_maxlevels(
 	uint		inodes;
 
 	inodes = (1LL << XFS_INO_AGINO_BITS(mp)) >> XFS_INODES_PER_CHUNK_LOG;
-	mp->m_in_maxlevels = xfs_btree_compute_maxlevels(mp->m_inobt_mnr,
-							 inodes);
+	M_IGEO(mp)->inobt_maxlevels = xfs_btree_compute_maxlevels(
+			M_IGEO(mp)->inobt_mnr, inodes);
 }
 
 /*
diff --git a/fs/xfs/libxfs/xfs_ialloc.h b/fs/xfs/libxfs/xfs_ialloc.h
index e936b7cc9389..e7d935e69b11 100644
--- a/fs/xfs/libxfs/xfs_ialloc.h
+++ b/fs/xfs/libxfs/xfs_ialloc.h
@@ -28,9 +28,9 @@ static inline int
 xfs_icluster_size_fsb(
 	struct xfs_mount	*mp)
 {
-	if (mp->m_sb.sb_blocksize >= mp->m_inode_cluster_size)
+	if (mp->m_sb.sb_blocksize >= M_IGEO(mp)->inode_cluster_size)
 		return 1;
-	return mp->m_inode_cluster_size >> mp->m_sb.sb_blocklog;
+	return M_IGEO(mp)->inode_cluster_size >> mp->m_sb.sb_blocklog;
 }
 
 /*
@@ -96,7 +96,7 @@ xfs_imap(
 	uint		flags);		/* flags for inode btree lookup */
 
 /*
- * Compute and fill in value of m_in_maxlevels.
+ * Compute and fill in value of m_ino_geo.inobt_maxlevels.
  */
 void
 xfs_ialloc_compute_maxlevels(
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c
index bc2dfacd2f4a..ac4b65da4c2b 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.c
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.c
@@ -28,7 +28,7 @@ xfs_inobt_get_minrecs(
 	struct xfs_btree_cur	*cur,
 	int			level)
 {
-	return cur->bc_mp->m_inobt_mnr[level != 0];
+	return M_IGEO(cur->bc_mp)->inobt_mnr[level != 0];
 }
 
 STATIC struct xfs_btree_cur *
@@ -164,7 +164,7 @@ xfs_inobt_get_maxrecs(
 	struct xfs_btree_cur	*cur,
 	int			level)
 {
-	return cur->bc_mp->m_inobt_mxr[level != 0];
+	return M_IGEO(cur->bc_mp)->inobt_mxr[level != 0];
 }
 
 STATIC void
@@ -281,10 +281,11 @@ xfs_inobt_verify(
 
 	/* level verification */
 	level = be16_to_cpu(block->bb_level);
-	if (level >= mp->m_in_maxlevels)
+	if (level >= M_IGEO(mp)->inobt_maxlevels)
 		return __this_address;
 
-	return xfs_btree_sblock_verify(bp, mp->m_inobt_mxr[level != 0]);
+	return xfs_btree_sblock_verify(bp,
+			M_IGEO(mp)->inobt_mxr[level != 0]);
 }
 
 static void
@@ -546,7 +547,7 @@ xfs_inobt_max_size(
 	xfs_agblock_t		agblocks = xfs_ag_block_count(mp, agno);
 
 	/* Bail out if we're uninitialized, which can happen in mkfs. */
-	if (mp->m_inobt_mxr[0] == 0)
+	if (M_IGEO(mp)->inobt_mxr[0] == 0)
 		return 0;
 
 	/*
@@ -558,7 +559,7 @@ xfs_inobt_max_size(
 	    XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == agno)
 		agblocks -= mp->m_sb.sb_logblocks;
 
-	return xfs_btree_calc_size(mp->m_inobt_mnr,
+	return xfs_btree_calc_size(M_IGEO(mp)->inobt_mnr,
 				(uint64_t)agblocks * mp->m_sb.sb_inopblock /
 					XFS_INODES_PER_CHUNK);
 }
@@ -619,5 +620,5 @@ xfs_iallocbt_calc_size(
 	struct xfs_mount	*mp,
 	unsigned long long	len)
 {
-	return xfs_btree_calc_size(mp->m_inobt_mnr, len);
+	return xfs_btree_calc_size(M_IGEO(mp)->inobt_mnr, len);
 }
diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
index e021d5133ccb..c1293d170d98 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.c
+++ b/fs/xfs/libxfs/xfs_inode_buf.c
@@ -36,7 +36,7 @@ xfs_inobp_check(
 	int		j;
 	xfs_dinode_t	*dip;
 
-	j = mp->m_inode_cluster_size >> mp->m_sb.sb_inodelog;
+	j = M_IGEO(mp)->inode_cluster_size >> mp->m_sb.sb_inodelog;
 
 	for (i = 0; i < j; i++) {
 		dip = xfs_buf_offset(bp, i * mp->m_sb.sb_inodesize);
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index e76a3e5d28d7..a44eb52b861d 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -804,16 +804,18 @@ const struct xfs_buf_ops xfs_sb_quiet_buf_ops = {
  */
 void
 xfs_sb_mount_common(
-	struct xfs_mount *mp,
-	struct xfs_sb	*sbp)
+	struct xfs_mount	*mp,
+	struct xfs_sb		*sbp)
 {
+	struct xfs_ino_geometry	*igeo = M_IGEO(mp);
+
 	mp->m_agfrotor = mp->m_agirotor = 0;
 	mp->m_maxagi = mp->m_sb.sb_agcount;
 	mp->m_blkbit_log = sbp->sb_blocklog + XFS_NBBYLOG;
 	mp->m_blkbb_log = sbp->sb_blocklog - BBSHIFT;
 	mp->m_sectbb_log = sbp->sb_sectlog - BBSHIFT;
 	mp->m_agno_log = xfs_highbit32(sbp->sb_agcount - 1) + 1;
-	mp->m_agino_log = sbp->sb_inopblog + sbp->sb_agblklog;
+	igeo->agino_log = sbp->sb_inopblog + sbp->sb_agblklog;
 	mp->m_blockmask = sbp->sb_blocksize - 1;
 	mp->m_blockwsize = sbp->sb_blocksize >> XFS_WORDLOG;
 	mp->m_blockwmask = mp->m_blockwsize - 1;
@@ -823,10 +825,10 @@ xfs_sb_mount_common(
 	mp->m_alloc_mnr[0] = mp->m_alloc_mxr[0] / 2;
 	mp->m_alloc_mnr[1] = mp->m_alloc_mxr[1] / 2;
 
-	mp->m_inobt_mxr[0] = xfs_inobt_maxrecs(mp, sbp->sb_blocksize, 1);
-	mp->m_inobt_mxr[1] = xfs_inobt_maxrecs(mp, sbp->sb_blocksize, 0);
-	mp->m_inobt_mnr[0] = mp->m_inobt_mxr[0] / 2;
-	mp->m_inobt_mnr[1] = mp->m_inobt_mxr[1] / 2;
+	igeo->inobt_mxr[0] = xfs_inobt_maxrecs(mp, sbp->sb_blocksize, 1);
+	igeo->inobt_mxr[1] = xfs_inobt_maxrecs(mp, sbp->sb_blocksize, 0);
+	igeo->inobt_mnr[0] = igeo->inobt_mxr[0] / 2;
+	igeo->inobt_mnr[1] = igeo->inobt_mxr[1] / 2;
 
 	mp->m_bmap_dmxr[0] = xfs_bmbt_maxrecs(mp, sbp->sb_blocksize, 1);
 	mp->m_bmap_dmxr[1] = xfs_bmbt_maxrecs(mp, sbp->sb_blocksize, 0);
@@ -844,14 +846,14 @@ xfs_sb_mount_common(
 	mp->m_refc_mnr[1] = mp->m_refc_mxr[1] / 2;
 
 	mp->m_bsize = XFS_FSB_TO_BB(mp, 1);
-	mp->m_ialloc_inos = max_t(uint16_t, XFS_INODES_PER_CHUNK,
+	igeo->ialloc_inos = max_t(uint16_t, XFS_INODES_PER_CHUNK,
 					sbp->sb_inopblock);
-	mp->m_ialloc_blks = mp->m_ialloc_inos >> sbp->sb_inopblog;
+	igeo->ialloc_blks = igeo->ialloc_inos >> sbp->sb_inopblog;
 
 	if (sbp->sb_spino_align)
-		mp->m_ialloc_min_blks = sbp->sb_spino_align;
+		igeo->ialloc_min_blks = sbp->sb_spino_align;
 	else
-		mp->m_ialloc_min_blks = mp->m_ialloc_blks;
+		igeo->ialloc_min_blks = igeo->ialloc_blks;
 	mp->m_alloc_set_aside = xfs_alloc_set_aside(mp);
 	mp->m_ag_max_usable = xfs_alloc_ag_max_usable(mp);
 }
diff --git a/fs/xfs/libxfs/xfs_trans_resv.c b/fs/xfs/libxfs/xfs_trans_resv.c
index 83f4ee2afc49..2663dd7975a5 100644
--- a/fs/xfs/libxfs/xfs_trans_resv.c
+++ b/fs/xfs/libxfs/xfs_trans_resv.c
@@ -136,9 +136,10 @@ STATIC uint
 xfs_calc_inobt_res(
 	struct xfs_mount	*mp)
 {
-	return xfs_calc_buf_res(mp->m_in_maxlevels, XFS_FSB_TO_B(mp, 1)) +
-		xfs_calc_buf_res(xfs_allocfree_log_count(mp, 1),
-				 XFS_FSB_TO_B(mp, 1));
+	return xfs_calc_buf_res(M_IGEO(mp)->inobt_maxlevels,
+			XFS_FSB_TO_B(mp, 1)) +
+				xfs_calc_buf_res(xfs_allocfree_log_count(mp, 1),
+			XFS_FSB_TO_B(mp, 1));
 }
 
 /*
@@ -167,7 +168,7 @@ xfs_calc_finobt_res(
  * includes:
  *
  * the allocation btrees: 2 trees * (max depth - 1) * block size
- * the inode chunk: m_ialloc_blks * N
+ * the inode chunk: m_ino_geo.ialloc_blks * N
  *
  * The size N of the inode chunk reservation depends on whether it is for
  * allocation or free and which type of create transaction is in use. An inode
@@ -193,7 +194,7 @@ xfs_calc_inode_chunk_res(
 		size = XFS_FSB_TO_B(mp, 1);
 	}
 
-	res += xfs_calc_buf_res(mp->m_ialloc_blks, size);
+	res += xfs_calc_buf_res(M_IGEO(mp)->ialloc_blks, size);
 	return res;
 }
 
@@ -307,7 +308,8 @@ xfs_calc_iunlink_remove_reservation(
 	struct xfs_mount        *mp)
 {
 	return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
-	       2 * max_t(uint, XFS_FSB_TO_B(mp, 1), mp->m_inode_cluster_size);
+	       2 * max_t(uint, XFS_FSB_TO_B(mp, 1),
+			 M_IGEO(mp)->inode_cluster_size);
 }
 
 /*
@@ -345,7 +347,8 @@ STATIC uint
 xfs_calc_iunlink_add_reservation(xfs_mount_t *mp)
 {
 	return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
-		max_t(uint, XFS_FSB_TO_B(mp, 1), mp->m_inode_cluster_size);
+			max_t(uint, XFS_FSB_TO_B(mp, 1),
+			      M_IGEO(mp)->inode_cluster_size);
 }
 
 /*
diff --git a/fs/xfs/libxfs/xfs_trans_space.h b/fs/xfs/libxfs/xfs_trans_space.h
index a62fb950bef1..88221c7a04cc 100644
--- a/fs/xfs/libxfs/xfs_trans_space.h
+++ b/fs/xfs/libxfs/xfs_trans_space.h
@@ -56,9 +56,9 @@
 #define	XFS_DIRREMOVE_SPACE_RES(mp)	\
 	XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK)
 #define	XFS_IALLOC_SPACE_RES(mp)	\
-	((mp)->m_ialloc_blks + \
+	(M_IGEO(mp)->ialloc_blks + \
 	 (xfs_sb_version_hasfinobt(&mp->m_sb) ? 2 : 1 * \
-	  ((mp)->m_in_maxlevels - 1)))
+	  (M_IGEO(mp)->inobt_maxlevels - 1)))
 
 /*
  * Space reservation values for various transactions.
@@ -94,7 +94,8 @@
 #define	XFS_SYMLINK_SPACE_RES(mp,nl,b)	\
 	(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b))
 #define XFS_IFREE_SPACE_RES(mp)		\
-	(xfs_sb_version_hasfinobt(&mp->m_sb) ? (mp)->m_in_maxlevels : 0)
+	(xfs_sb_version_hasfinobt(&mp->m_sb) ? \
+			M_IGEO(mp)->inobt_maxlevels : 0)
 
 
 #endif	/* __XFS_TRANS_SPACE_H__ */
diff --git a/fs/xfs/libxfs/xfs_types.c b/fs/xfs/libxfs/xfs_types.c
index d51acc95bc00..a2bd9f5a5e30 100644
--- a/fs/xfs/libxfs/xfs_types.c
+++ b/fs/xfs/libxfs/xfs_types.c
@@ -87,14 +87,14 @@ xfs_agino_range(
 	 * Calculate the first inode, which will be in the first
 	 * cluster-aligned block after the AGFL.
 	 */
-	bno = round_up(XFS_AGFL_BLOCK(mp) + 1, mp->m_cluster_align);
+	bno = round_up(XFS_AGFL_BLOCK(mp) + 1, M_IGEO(mp)->cluster_align);
 	*first = XFS_AGB_TO_AGINO(mp, bno);
 
 	/*
 	 * Calculate the last inode, which will be at the end of the
 	 * last (aligned) cluster that can be allocated in the AG.
 	 */
-	bno = round_down(eoag, mp->m_cluster_align);
+	bno = round_down(eoag, M_IGEO(mp)->cluster_align);
 	*last = XFS_AGB_TO_AGINO(mp, bno) - 1;
 }