diff --git a/libxfs/xfs_rtbitmap.c b/libxfs/xfs_rtbitmap.c
index 1827f91..f27274a 100644
--- a/libxfs/xfs_rtbitmap.c
+++ b/libxfs/xfs_rtbitmap.c
@@ -54,7 +54,7 @@
 xfs_rtbuf_get(
 	xfs_mount_t	*mp,		/* file system mount structure */
 	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_rtblock_t	block,		/* block number in bitmap or summary */
+	xfs_fileoff_t	block,		/* block number in bitmap or summary */
 	int		issum,		/* is summary not bitmap */
 	struct xfs_buf	**bpp)		/* output: buffer for the block */
 {
@@ -106,7 +106,7 @@
 {
 	xfs_rtword_t	*b;		/* current word in buffer */
 	int		bit;		/* bit number in the word */
-	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_fileoff_t	block;		/* bitmap block number */
 	struct xfs_buf	*bp;		/* buf for the block */
 	xfs_rtword_t	*bufp;		/* starting word in buffer */
 	int		error;		/* error value */
@@ -281,7 +281,7 @@
 {
 	xfs_rtword_t	*b;		/* current word in buffer */
 	int		bit;		/* bit number in the word */
-	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_fileoff_t	block;		/* bitmap block number */
 	struct xfs_buf	*bp;		/* buf for the block */
 	xfs_rtword_t	*bufp;		/* starting word in buffer */
 	int		error;		/* error value */
@@ -451,15 +451,15 @@
 	xfs_mount_t	*mp,		/* file system mount structure */
 	xfs_trans_t	*tp,		/* transaction pointer */
 	int		log,		/* log2 of extent size */
-	xfs_rtblock_t	bbno,		/* bitmap block number */
+	xfs_fileoff_t	bbno,		/* bitmap block number */
 	int		delta,		/* change to make to summary info */
 	struct xfs_buf	**rbpp,		/* in/out: summary block buffer */
-	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
+	xfs_fileoff_t	*rsb,		/* in/out: summary block number */
 	xfs_suminfo_t	*sum)		/* out: summary info for this block */
 {
 	struct xfs_buf	*bp;		/* buffer for the summary block */
 	int		error;		/* error value */
-	xfs_fsblock_t	sb;		/* summary fsblock */
+	xfs_fileoff_t	sb;		/* summary fsblock */
 	int		so;		/* index into the summary file */
 	xfs_suminfo_t	*sp;		/* pointer to returned data */
 
@@ -521,10 +521,10 @@
 	xfs_mount_t	*mp,		/* file system mount structure */
 	xfs_trans_t	*tp,		/* transaction pointer */
 	int		log,		/* log2 of extent size */
-	xfs_rtblock_t	bbno,		/* bitmap block number */
+	xfs_fileoff_t	bbno,		/* bitmap block number */
 	int		delta,		/* change to make to summary info */
 	struct xfs_buf	**rbpp,		/* in/out: summary block buffer */
-	xfs_fsblock_t	*rsb)		/* in/out: summary block number */
+	xfs_fileoff_t	*rsb)		/* in/out: summary block number */
 {
 	return xfs_rtmodify_summary_int(mp, tp, log, bbno,
 					delta, rbpp, rsb, NULL);
@@ -544,7 +544,7 @@
 {
 	xfs_rtword_t	*b;		/* current word in buffer */
 	int		bit;		/* bit number in the word */
-	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_fileoff_t	block;		/* bitmap block number */
 	struct xfs_buf	*bp;		/* buf for the block */
 	xfs_rtword_t	*bufp;		/* starting word in buffer */
 	int		error;		/* error value */
@@ -697,7 +697,7 @@
 	xfs_rtblock_t	start,		/* starting block to free */
 	xfs_rtxlen_t	len,		/* length to free */
 	struct xfs_buf	**rbpp,		/* in/out: summary block buffer */
-	xfs_fsblock_t	*rsb)		/* in/out: summary block number */
+	xfs_fileoff_t	*rsb)		/* in/out: summary block number */
 {
 	xfs_rtblock_t	end;		/* end of the freed extent */
 	int		error;		/* error value */
@@ -778,7 +778,7 @@
 {
 	xfs_rtword_t	*b;		/* current word in buffer */
 	int		bit;		/* bit number in the word */
-	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_fileoff_t	block;		/* bitmap block number */
 	struct xfs_buf	*bp;		/* buf for the block */
 	xfs_rtword_t	*bufp;		/* starting word in buffer */
 	int		error;		/* error value */
diff --git a/libxfs/xfs_rtbitmap.h b/libxfs/xfs_rtbitmap.h
index d444961..e2ea6d3 100644
--- a/libxfs/xfs_rtbitmap.h
+++ b/libxfs/xfs_rtbitmap.h
@@ -24,7 +24,7 @@
 
 #ifdef CONFIG_XFS_RT
 int xfs_rtbuf_get(struct xfs_mount *mp, struct xfs_trans *tp,
-		  xfs_rtblock_t block, int issum, struct xfs_buf **bpp);
+		  xfs_fileoff_t block, int issum, struct xfs_buf **bpp);
 int xfs_rtcheck_range(struct xfs_mount *mp, struct xfs_trans *tp,
 		      xfs_rtblock_t start, xfs_rtxlen_t len, int val,
 		      xfs_rtblock_t *new, int *stat);
@@ -37,15 +37,15 @@
 int xfs_rtmodify_range(struct xfs_mount *mp, struct xfs_trans *tp,
 		       xfs_rtblock_t start, xfs_rtxlen_t len, int val);
 int xfs_rtmodify_summary_int(struct xfs_mount *mp, struct xfs_trans *tp,
-			     int log, xfs_rtblock_t bbno, int delta,
-			     struct xfs_buf **rbpp, xfs_fsblock_t *rsb,
+			     int log, xfs_fileoff_t bbno, int delta,
+			     struct xfs_buf **rbpp, xfs_fileoff_t *rsb,
 			     xfs_suminfo_t *sum);
 int xfs_rtmodify_summary(struct xfs_mount *mp, struct xfs_trans *tp, int log,
-			 xfs_rtblock_t bbno, int delta, struct xfs_buf **rbpp,
-			 xfs_fsblock_t *rsb);
+			 xfs_fileoff_t bbno, int delta, struct xfs_buf **rbpp,
+			 xfs_fileoff_t *rsb);
 int xfs_rtfree_range(struct xfs_mount *mp, struct xfs_trans *tp,
 		     xfs_rtblock_t start, xfs_rtxlen_t len,
-		     struct xfs_buf **rbpp, xfs_fsblock_t *rsb);
+		     struct xfs_buf **rbpp, xfs_fileoff_t *rsb);
 int xfs_rtalloc_query_range(struct xfs_mount *mp, struct xfs_trans *tp,
 		const struct xfs_rtalloc_rec *low_rec,
 		const struct xfs_rtalloc_rec *high_rec,