diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index 3ac4a836428d..c7b2579a8e73 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -288,7 +288,7 @@ xfs_ialloc_inode_init(
 {
 	struct xfs_buf		*fbuf;
 	struct xfs_dinode	*free;
-	int			nbufs, blks_per_cluster, inodes_per_cluster;
+	int			nbufs;
 	int			version;
 	int			i, j;
 	xfs_daddr_t		d;
@@ -299,9 +299,7 @@ xfs_ialloc_inode_init(
 	 * sizes, manipulate the inodes in buffers  which are multiples of the
 	 * blocks size.
 	 */
-	blks_per_cluster = xfs_icluster_size_fsb(mp);
-	inodes_per_cluster = XFS_FSB_TO_INO(mp, blks_per_cluster);
-	nbufs = length / blks_per_cluster;
+	nbufs = length / mp->m_blocks_per_cluster;
 
 	/*
 	 * Figure out what version number to use in the inodes we create.  If
@@ -344,9 +342,10 @@ xfs_ialloc_inode_init(
 		/*
 		 * Get the block.
 		 */
-		d = XFS_AGB_TO_DADDR(mp, agno, agbno + (j * blks_per_cluster));
+		d = XFS_AGB_TO_DADDR(mp, agno, agbno +
+				(j * mp->m_blocks_per_cluster));
 		fbuf = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
-					 mp->m_bsize * blks_per_cluster,
+					 mp->m_bsize * mp->m_blocks_per_cluster,
 					 XBF_UNMAPPED);
 		if (!fbuf)
 			return -ENOMEM;
@@ -354,7 +353,7 @@ 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 < inodes_per_cluster; i++) {
+		for (i = 0; i < mp->m_inodes_per_cluster; i++) {
 			int	ioffset = i << mp->m_sb.sb_inodelog;
 			uint	isize = xfs_dinode_size(version);
 
@@ -2289,7 +2288,6 @@ xfs_imap(
 	xfs_agblock_t	agbno;	/* block number of inode in the alloc group */
 	xfs_agino_t	agino;	/* inode number within alloc group */
 	xfs_agnumber_t	agno;	/* allocation group number */
-	int		blks_per_cluster; /* num blocks per inode cluster */
 	xfs_agblock_t	chunk_agbno;	/* first block in inode chunk */
 	xfs_agblock_t	cluster_agbno;	/* first block in inode cluster */
 	int		error;	/* error code */
@@ -2335,8 +2333,6 @@ xfs_imap(
 		return -EINVAL;
 	}
 
-	blks_per_cluster = xfs_icluster_size_fsb(mp);
-
 	/*
 	 * For bulkstat and handle lookups, we have an untrusted inode number
 	 * that we have to verify is valid. We cannot do this just by reading
@@ -2356,7 +2352,7 @@ xfs_imap(
 	 * If the inode cluster size is the same as the blocksize or
 	 * smaller we get to the buffer by simple arithmetics.
 	 */
-	if (blks_per_cluster == 1) {
+	if (mp->m_blocks_per_cluster == 1) {
 		offset = XFS_INO_TO_OFFSET(mp, ino);
 		ASSERT(offset < mp->m_sb.sb_inopblock);
 
@@ -2385,12 +2381,13 @@ xfs_imap(
 out_map:
 	ASSERT(agbno >= chunk_agbno);
 	cluster_agbno = chunk_agbno +
-		((offset_agbno / blks_per_cluster) * blks_per_cluster);
+		((offset_agbno / mp->m_blocks_per_cluster) *
+		 mp->m_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, blks_per_cluster);
+	imap->im_len = XFS_FSB_TO_BB(mp, mp->m_blocks_per_cluster);
 	imap->im_boffset = (unsigned short)(offset << mp->m_sb.sb_inodelog);
 
 	/*
diff --git a/fs/xfs/scrub/ialloc.c b/fs/xfs/scrub/ialloc.c
index 426eb1a5503c..596a02b8efdc 100644
--- a/fs/xfs/scrub/ialloc.c
+++ b/fs/xfs/scrub/ialloc.c
@@ -193,18 +193,16 @@ xchk_iallocbt_check_freemask(
 	xfs_agino_t			chunkino;
 	xfs_agino_t			clusterino;
 	xfs_agblock_t			agbno;
-	int				blks_per_cluster;
 	uint16_t			holemask;
 	uint16_t			ir_holemask;
 	int				error = 0;
 
 	/* Make sure the freemask matches the inode records. */
-	blks_per_cluster = xfs_icluster_size_fsb(mp);
-	nr_inodes = XFS_FSB_TO_INO(mp, blks_per_cluster);
+	nr_inodes = mp->m_inodes_per_cluster;
 
 	for (agino = irec->ir_startino;
 	     agino < irec->ir_startino + XFS_INODES_PER_CHUNK;
-	     agino += blks_per_cluster * mp->m_sb.sb_inopblock) {
+	     agino += mp->m_inodes_per_cluster) {
 		fsino = XFS_AGINO_TO_INO(mp, bs->cur->bc_private.a.agno, agino);
 		chunkino = agino - irec->ir_startino;
 		agbno = XFS_AGINO_TO_AGBNO(mp, agino);
@@ -225,18 +223,18 @@ xchk_iallocbt_check_freemask(
 		/* If any part of this is a hole, skip it. */
 		if (ir_holemask) {
 			xchk_xref_is_not_owned_by(bs->sc, agbno,
-					blks_per_cluster,
+					mp->m_blocks_per_cluster,
 					&XFS_RMAP_OINFO_INODES);
 			continue;
 		}
 
-		xchk_xref_is_owned_by(bs->sc, agbno, blks_per_cluster,
+		xchk_xref_is_owned_by(bs->sc, agbno, mp->m_blocks_per_cluster,
 				&XFS_RMAP_OINFO_INODES);
 
 		/* Grab the inode cluster buffer. */
 		imap.im_blkno = XFS_AGB_TO_DADDR(mp, bs->cur->bc_private.a.agno,
 				agbno);
-		imap.im_len = XFS_FSB_TO_BB(mp, blks_per_cluster);
+		imap.im_len = XFS_FSB_TO_BB(mp, mp->m_blocks_per_cluster);
 		imap.im_boffset = 0;
 
 		error = xfs_imap_to_bp(mp, bs->cur->bc_tp, &imap,
@@ -303,7 +301,7 @@ xchk_iallocbt_rec(
 	/* Make sure this record is aligned to cluster and inoalignmnt size. */
 	agbno = XFS_AGINO_TO_AGBNO(mp, irec.ir_startino);
 	if ((agbno & (xfs_ialloc_cluster_alignment(mp) - 1)) ||
-	    (agbno & (xfs_icluster_size_fsb(mp) - 1)))
+	    (agbno & (mp->m_blocks_per_cluster - 1)))
 		xchk_btree_set_corrupt(bs->sc, bs->cur, 0);
 
 	*inode_blocks += XFS_B_TO_FSB(mp,
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 801eb891d0fd..ae667ba74a1c 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2184,8 +2184,6 @@ xfs_ifree_cluster(
 	struct xfs_icluster	*xic)
 {
 	xfs_mount_t		*mp = free_ip->i_mount;
-	int			blks_per_cluster;
-	int			inodes_per_cluster;
 	int			nbufs;
 	int			i, j;
 	int			ioffset;
@@ -2199,11 +2197,9 @@ xfs_ifree_cluster(
 
 	inum = xic->first_ino;
 	pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, inum));
-	blks_per_cluster = xfs_icluster_size_fsb(mp);
-	inodes_per_cluster = XFS_FSB_TO_INO(mp, blks_per_cluster);
-	nbufs = mp->m_ialloc_blks / blks_per_cluster;
+	nbufs = mp->m_ialloc_blks / mp->m_blocks_per_cluster;
 
-	for (j = 0; j < nbufs; j++, inum += inodes_per_cluster) {
+	for (j = 0; j < nbufs; j++, inum += mp->m_inodes_per_cluster) {
 		/*
 		 * The allocation bitmap tells us which inodes of the chunk were
 		 * physically allocated. Skip the cluster if an inode falls into
@@ -2211,7 +2207,7 @@ xfs_ifree_cluster(
 		 */
 		ioffset = inum - xic->first_ino;
 		if ((xic->alloc & XFS_INOBT_MASK(ioffset)) == 0) {
-			ASSERT(ioffset % inodes_per_cluster == 0);
+			ASSERT(ioffset % mp->m_inodes_per_cluster == 0);
 			continue;
 		}
 
@@ -2227,7 +2223,7 @@ xfs_ifree_cluster(
 		 * to mark all the active inodes on the buffer stale.
 		 */
 		bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, blkno,
-					mp->m_bsize * blks_per_cluster,
+					mp->m_bsize * mp->m_blocks_per_cluster,
 					XBF_UNMAPPED);
 
 		if (!bp)
@@ -2274,7 +2270,7 @@ xfs_ifree_cluster(
 		 * transaction stale above, which means there is no point in
 		 * even trying to lock them.
 		 */
-		for (i = 0; i < inodes_per_cluster; i++) {
+		for (i = 0; i < mp->m_inodes_per_cluster; i++) {
 retry:
 			rcu_read_lock();
 			ip = radix_tree_lookup(&pag->pag_ici_root,
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 18d8d3b812a7..942e4aa5e729 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -167,20 +167,18 @@ xfs_bulkstat_ichunk_ra(
 {
 	xfs_agblock_t			agbno;
 	struct blk_plug			plug;
-	int				blks_per_cluster;
-	int				inodes_per_cluster;
 	int				i;	/* inode chunk index */
 
 	agbno = XFS_AGINO_TO_AGBNO(mp, irec->ir_startino);
-	blks_per_cluster = xfs_icluster_size_fsb(mp);
-	inodes_per_cluster = XFS_FSB_TO_INO(mp, blks_per_cluster);
 
 	blk_start_plug(&plug);
 	for (i = 0; i < XFS_INODES_PER_CHUNK;
-	     i += inodes_per_cluster, agbno += blks_per_cluster) {
-		if (xfs_inobt_maskn(i, inodes_per_cluster) & ~irec->ir_free) {
-			xfs_btree_reada_bufs(mp, agno, agbno, blks_per_cluster,
-					     &xfs_inode_buf_ops);
+	     i += mp->m_inodes_per_cluster, agbno += mp->m_blocks_per_cluster) {
+		if (xfs_inobt_maskn(i, mp->m_inodes_per_cluster) &
+		    ~irec->ir_free) {
+			xfs_btree_reada_bufs(mp, agno, agbno,
+					mp->m_blocks_per_cluster,
+					&xfs_inode_buf_ops);
 		}
 	}
 	blk_finish_plug(&plug);
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 1fc9e9042e0e..9fe88d125f0a 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -3850,7 +3850,6 @@ xlog_recover_do_icreate_pass2(
 	unsigned int		count;
 	unsigned int		isize;
 	xfs_agblock_t		length;
-	int			blks_per_cluster;
 	int			bb_per_cluster;
 	int			cancel_count;
 	int			nbufs;
@@ -3918,14 +3917,13 @@ xlog_recover_do_icreate_pass2(
 	 * buffers for cancellation so we don't overwrite anything written after
 	 * a cancellation.
 	 */
-	blks_per_cluster = xfs_icluster_size_fsb(mp);
-	bb_per_cluster = XFS_FSB_TO_BB(mp, blks_per_cluster);
-	nbufs = length / blks_per_cluster;
+	bb_per_cluster = XFS_FSB_TO_BB(mp, mp->m_blocks_per_cluster);
+	nbufs = length / mp->m_blocks_per_cluster;
 	for (i = 0, cancel_count = 0; i < nbufs; i++) {
 		xfs_daddr_t	daddr;
 
 		daddr = XFS_AGB_TO_DADDR(mp, agno,
-					 agbno + i * blks_per_cluster);
+					 agbno + i * mp->m_blocks_per_cluster);
 		if (xlog_check_buffer_cancelled(log, daddr, bb_per_cluster, 0))
 			cancel_count++;
 	}
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 02d15098dbee..56d374675fd5 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -798,6 +798,8 @@ xfs_mountfs(
 		if (mp->m_sb.sb_inoalignmt >= XFS_B_TO_FSBT(mp, new_size))
 			mp->m_inode_cluster_size = new_size;
 	}
+	mp->m_blocks_per_cluster = xfs_icluster_size_fsb(mp);
+	mp->m_inodes_per_cluster = XFS_FSB_TO_INO(mp, mp->m_blocks_per_cluster);
 
 	/*
 	 * If enabled, sparse inode chunk alignment is expected to match the
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 7964513c3128..58a037bfac22 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -101,6 +101,8 @@ typedef struct xfs_mount {
 	uint8_t			m_agno_log;	/* log #ag's */
 	uint8_t			m_agino_log;	/* #bits for agino in inum */
 	uint			m_inode_cluster_size;/* min inode buf size */
+	unsigned int		m_inodes_per_cluster;
+	unsigned int		m_blocks_per_cluster;
 	uint			m_blockmask;	/* sb_blocksize-1 */
 	uint			m_blockwsize;	/* sb_blocksize in words */
 	uint			m_blockwmask;	/* blockwsize-1 */