diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 49dec21..577d0b4 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1512,9 +1512,11 @@
 	}
 
 	if (direct || size > (1 << inode->i_blkbits)) {
-		ASSERT(iomap.iomap_bsize - iomap.iomap_delta > 0);
+		xfs_off_t iomap_delta = offset - iomap.iomap_offset;
+
+		ASSERT(iomap.iomap_bsize - iomap_delta > 0);
 		offset = min_t(xfs_off_t,
-				iomap.iomap_bsize - iomap.iomap_delta, size);
+				iomap.iomap_bsize - iomap_delta, size);
 		bh_result->b_size = (ssize_t)min_t(xfs_off_t, LONG_MAX, offset);
 	}
 
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 7327d3f..c6b409e 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -68,7 +68,6 @@
 	xfs_fsblock_t	start_block;
 
 	iomapp->iomap_offset = XFS_FSB_TO_B(mp, imap->br_startoff);
-	iomapp->iomap_delta = offset - iomapp->iomap_offset;
 	iomapp->iomap_bsize = XFS_FSB_TO_B(mp, imap->br_blockcount);
 	iomapp->iomap_flags = flags;
 
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h
index a85fa90..db92996 100644
--- a/fs/xfs/xfs_iomap.h
+++ b/fs/xfs/xfs_iomap.h
@@ -72,7 +72,6 @@
 	xfs_daddr_t		iomap_bn;	/* first 512B blk of mapping */
 	xfs_off_t		iomap_offset;	/* offset of mapping, bytes */
 	xfs_off_t		iomap_bsize;	/* size of mapping, bytes */
-	xfs_off_t		iomap_delta;	/* offset into mapping, bytes */
 	iomap_flags_t		iomap_flags;
 } xfs_iomap_t;