Btrfs: remove unused argument of fixup_low_keys()

Argument 'trans' is not used in fixup_low_keys(). So, remove it.
Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

fs/btrfs/ctree.c

@@ -2905,8 +2905,7 @@ int btrfs_search_slot_for_read(struct btrfs_root *root,
  * higher levels
  *
  */
-static void fixup_low_keys(struct btrfs_trans_handle *trans,
-			   struct btrfs_root *root, struct btrfs_path *path,
+static void fixup_low_keys(struct btrfs_root *root, struct btrfs_path *path,
 			   struct btrfs_disk_key *key, int level)
 {
 	int i;
@@ -2954,7 +2953,7 @@ void btrfs_set_item_key_safe(struct btrfs_trans_handle *trans,
 	btrfs_set_item_key(eb, &disk_key, slot);
 	btrfs_mark_buffer_dirty(eb);
 	if (slot == 0)
-		fixup_low_keys(trans, root, path, &disk_key, 1);
+		fixup_low_keys(root, path, &disk_key, 1);
 }
 
 /*
@@ -3692,7 +3691,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
 		clean_tree_block(trans, root, right);
 
 	btrfs_item_key(right, &disk_key, 0);
-	fixup_low_keys(trans, root, path, &disk_key, 1);
+	fixup_low_keys(root, path, &disk_key, 1);
 
 	/* then fixup the leaf pointer in the path */
 	if (path->slots[0] < push_items) {
@@ -4052,8 +4051,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
 			path->nodes[0] = right;
 			path->slots[0] = 0;
 			if (path->slots[1] == 0)
-				fixup_low_keys(trans, root, path,
-					       &disk_key, 1);
+				fixup_low_keys(root, path, &disk_key, 1);
 		}
 		btrfs_mark_buffer_dirty(right);
 		return ret;
@@ -4372,7 +4370,7 @@ void btrfs_truncate_item(struct btrfs_trans_handle *trans,
 		btrfs_set_disk_key_offset(&disk_key, offset + size_diff);
 		btrfs_set_item_key(leaf, &disk_key, slot);
 		if (slot == 0)
-			fixup_low_keys(trans, root, path, &disk_key, 1);
+			fixup_low_keys(root, path, &disk_key, 1);
 	}
 
 	item = btrfs_item_nr(leaf, slot);
@@ -4536,7 +4534,7 @@ void setup_items_for_insert(struct btrfs_trans_handle *trans,
 
 	if (slot == 0) {
 		btrfs_cpu_key_to_disk(&disk_key, cpu_key);
-		fixup_low_keys(trans, root, path, &disk_key, 1);
+		fixup_low_keys(root, path, &disk_key, 1);
 	}
 	btrfs_unlock_up_safe(path, 1);
 	btrfs_mark_buffer_dirty(leaf);
@@ -4647,7 +4645,7 @@ static void del_ptr(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 		struct btrfs_disk_key disk_key;
 
 		btrfs_node_key(parent, &disk_key, 0);
-		fixup_low_keys(trans, root, path, &disk_key, level + 1);
+		fixup_low_keys(root, path, &disk_key, level + 1);
 	}
 	btrfs_mark_buffer_dirty(parent);
 }
@@ -4749,7 +4747,7 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 			struct btrfs_disk_key disk_key;
 
 			btrfs_item_key(leaf, &disk_key, 0);
-			fixup_low_keys(trans, root, path, &disk_key, 1);
+			fixup_low_keys(root, path, &disk_key, 1);
 		}
 
 		/* delete the leaf if it is mostly empty */