diff --git a/lib/ext2fs/blkmap64_rb.c b/lib/ext2fs/blkmap64_rb.c
index c9006f8..900c0d3 100644
--- a/lib/ext2fs/blkmap64_rb.c
+++ b/lib/ext2fs/blkmap64_rb.c
@@ -38,8 +38,8 @@ struct bmap_rb_extent {
 
 struct ext2fs_rb_private {
 	struct rb_root root;
-	struct bmap_rb_extent **wcursor;
-	struct bmap_rb_extent **rcursor;
+	struct bmap_rb_extent *wcursor;
+	struct bmap_rb_extent *rcursor;
 #ifdef BMAP_STATS_OPS
 	__u64 mark_hit;
 	__u64 test_hit;
@@ -148,10 +148,10 @@ inline
 static void rb_free_extent(struct ext2fs_rb_private *bp,
 			   struct bmap_rb_extent *ext)
 {
-	if (*bp->wcursor == ext)
-		*bp->wcursor = NULL;
-	if (*bp->rcursor == ext)
-		*bp->rcursor = NULL;
+	if (bp->wcursor == ext)
+		bp->wcursor = NULL;
+	if (bp->rcursor == ext)
+		bp->rcursor = NULL;
 	ext2fs_free_mem(&ext);
 }
 
@@ -165,14 +165,8 @@ static errcode_t rb_alloc_private_data (ext2fs_generic_bitmap bitmap)
 		return retval;
 
 	bp->root = RB_ROOT;
-	retval = ext2fs_get_mem(sizeof(struct bmap_rb_extent *), &bp->rcursor);
-	if (retval)
-		return retval;
-	retval = ext2fs_get_mem(sizeof(struct bmap_rb_extent *), &bp->wcursor);
-	if (retval)
-		return retval;
-	*bp->rcursor = NULL;
-	*bp->wcursor = NULL;
+	bp->rcursor = NULL;
+	bp->wcursor = NULL;
 
 #ifdef BMAP_STATS_OPS
 	bp->test_hit = 0;
@@ -215,8 +209,6 @@ static void rb_free_bmap(ext2fs_generic_bitmap bitmap)
 	bp = (struct ext2fs_rb_private *) bitmap->private;
 
 	rb_free_tree(&bp->root);
-	ext2fs_free_mem(&bp->rcursor);
-	ext2fs_free_mem(&bp->wcursor);
 	ext2fs_free_mem(&bp);
 	bp = 0;
 }
@@ -235,8 +227,8 @@ static errcode_t rb_copy_bmap(ext2fs_generic_bitmap src,
 
 	src_bp = (struct ext2fs_rb_private *) src->private;
 	dest_bp = (struct ext2fs_rb_private *) dest->private;
-	*src_bp->rcursor = NULL;
-	*dest_bp->rcursor = NULL;
+	src_bp->rcursor = NULL;
+	dest_bp->rcursor = NULL;
 
 	src_node = ext2fs_rb_first(&src_bp->root);
 	while (src_node) {
@@ -299,8 +291,8 @@ static errcode_t rb_resize_bmap(ext2fs_generic_bitmap bmap,
 	}
 
 	bp = (struct ext2fs_rb_private *) bmap->private;
-	*bp->rcursor = NULL;
-	*bp->wcursor = NULL;
+	bp->rcursor = NULL;
+	bp->wcursor = NULL;
 
 	/* truncate tree to new_real_end size */
 	rb_truncate(new_real_end, &bp->root);
@@ -319,7 +311,7 @@ rb_test_bit(struct ext2fs_rb_private *bp, __u64 bit)
 	struct rb_node **n = &bp->root.rb_node;
 	struct bmap_rb_extent *ext;
 
-	rcursor = *bp->rcursor;
+	rcursor = bp->rcursor;
 	if (!rcursor)
 		goto search_tree;
 
@@ -342,7 +334,7 @@ rb_test_bit(struct ext2fs_rb_private *bp, __u64 bit)
 		}
 	}
 
-	rcursor = *bp->wcursor;
+	rcursor = bp->wcursor;
 	if (!rcursor)
 		goto search_tree;
 
@@ -359,7 +351,7 @@ search_tree:
 		else if (bit >= (ext->start + ext->count))
 			n = &(*n)->rb_right;
 		else {
-			*bp->rcursor = ext;
+			bp->rcursor = ext;
 			return 1;
 		}
 	}
@@ -376,7 +368,7 @@ static int rb_insert_extent(__u64 start, __u64 count,
 	struct bmap_rb_extent *ext;
 	int retval = 0;
 
-	ext = *bp->wcursor;
+	ext = bp->wcursor;
 	if (ext) {
 		if (start >= ext->start &&
 		    start <= (ext->start + ext->count)) {
@@ -419,7 +411,7 @@ got_extent:
 	new_node = &new_ext->node;
 	ext2fs_rb_link_node(new_node, parent, n);
 	ext2fs_rb_insert_color(new_node, root);
-	*bp->wcursor = new_ext;
+	bp->wcursor = new_ext;
 
 	node = ext2fs_rb_prev(new_node);
 	if (node) {
@@ -745,8 +737,8 @@ static void rb_clear_bmap(ext2fs_generic_bitmap bitmap)
 	bp = (struct ext2fs_rb_private *) bitmap->private;
 
 	rb_free_tree(&bp->root);
-	*bp->rcursor = NULL;
-	*bp->wcursor = NULL;
+	bp->rcursor = NULL;
+	bp->wcursor = NULL;
 }
 
 #ifdef BMAP_STATS