diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index e198506..2bc7d8a 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -2172,7 +2172,7 @@
 	}
 
 	/* update the free count for this dmap */
-	dp->nfree = cpu_to_le32(le32_to_cpu(dp->nfree) - nblocks);
+	le32_add_cpu(&dp->nfree, -nblocks);
 
 	BMAP_LOCK(bmp);
 
@@ -2316,7 +2316,7 @@
 
 	/* update the free count for this dmap.
 	 */
-	dp->nfree = cpu_to_le32(le32_to_cpu(dp->nfree) + nblocks);
+	le32_add_cpu(&dp->nfree, nblocks);
 
 	BMAP_LOCK(bmp);
 
@@ -3226,7 +3226,7 @@
 	}
 
 	/* update the free count for this dmap */
-	dp->nfree = cpu_to_le32(le32_to_cpu(dp->nfree) - nblocks);
+	le32_add_cpu(&dp->nfree, -nblocks);
 
 	/* reconstruct summary tree */
 	dbInitDmapTree(dp);
@@ -3660,9 +3660,8 @@
 			goto initTree;
 		}
 	} else {
-		dp->nblocks =
-		    cpu_to_le32(le32_to_cpu(dp->nblocks) + nblocks);
-		dp->nfree = cpu_to_le32(le32_to_cpu(dp->nfree) + nblocks);
+		le32_add_cpu(&dp->nblocks, nblocks);
+		le32_add_cpu(&dp->nfree, nblocks);
 	}
 
 	/* word number containing start block number */