Btrfs: Fix split_leaf to avoid incorrect double splits

Signed-off-by: Chris Mason <chris.mason@oracle.com>
git-mirror · Sep 25, 2008 · 5ee78ac · 5ee78ac
1 parent ff190c0
commit 5ee78ac
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
@@ -1865,7 +1865,11 @@ static int split_leaf(struct btrfs_trans_handle *trans, struct btrfs_root
 				return ret;
 			}
 			mid = slot;
-			double_split = 1;
+			if (mid != nritems &&
+			    leaf_space_used(l, mid, nritems - mid) +
+			    space_needed > BTRFS_LEAF_DATA_SIZE(root)) {
+				double_split = 1;
+			}
 		}
 	}
 	nritems = nritems - mid;