diff --git a/disk-io.c b/disk-io.c
index 6ef35bbf..be4abb8b 100644
--- a/disk-io.c
+++ b/disk-io.c
@@ -1278,24 +1278,39 @@ int write_ctree_super(struct btrfs_trans_handle *trans,
 static int close_all_devices(struct btrfs_fs_info *fs_info)
 {
 	struct list_head *list;
-	struct list_head *next;
 	struct btrfs_device *device;
 
-	return 0;
-
 	list = &fs_info->fs_devices->devices;
-	list_for_each(next, list) {
-		device = list_entry(next, struct btrfs_device, dev_list);
+	while (!list_empty(list)) {
+		device = list_entry(list->next, struct btrfs_device, dev_list);
+		list_del_init(&device->dev_list);
 		if (device->fd) {
 			fsync(device->fd);
 			if (posix_fadvise(device->fd, 0, 0, POSIX_FADV_DONTNEED))
 				fprintf(stderr, "Warning, could not drop caches\n");
 		}
 		close(device->fd);
+		kfree(device->name);
+		kfree(device->label);
+		kfree(device);
 	}
+	kfree(fs_info->fs_devices);
 	return 0;
 }
 
+static void free_mapping_cache(struct btrfs_fs_info *fs_info)
+{
+	struct cache_tree *cache_tree = &fs_info->mapping_tree.cache_tree;
+	struct cache_extent *ce;
+	struct map_lookup *map;
+
+	while ((ce = find_first_cache_extent(cache_tree, 0))) {
+		map = container_of(ce, struct map_lookup, ce);
+		remove_cache_extent(cache_tree, ce);
+		kfree(map);
+	}
+}
+
 int close_ctree(struct btrfs_root *root)
 {
 	int ret;
@@ -1336,6 +1351,7 @@ int close_ctree(struct btrfs_root *root)
 	}
 
 	close_all_devices(fs_info);
+	free_mapping_cache(fs_info);
 	extent_io_tree_cleanup(&fs_info->extent_cache);
 	extent_io_tree_cleanup(&fs_info->free_space_cache);
 	extent_io_tree_cleanup(&fs_info->block_group_cache);
diff --git a/extent-tree.c b/extent-tree.c
index da93cb17..2d829777 100644
--- a/extent-tree.c
+++ b/extent-tree.c
@@ -3003,10 +3003,12 @@ out:
 
 int btrfs_free_block_groups(struct btrfs_fs_info *info)
 {
+	struct btrfs_space_info *sinfo;
 	u64 start;
 	u64 end;
 	u64 ptr;
 	int ret;
+
 	while(1) {
 		ret = find_first_extent_bit(&info->block_group_cache, 0,
 					    &start, &end, (unsigned int)-1);
@@ -3026,6 +3028,13 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info)
 		clear_extent_dirty(&info->free_space_cache, start,
 				   end, GFP_NOFS);
 	}
+
+	while (!list_empty(&info->space_info)) {
+		sinfo = list_entry(info->space_info.next,
+				   struct btrfs_space_info, list);
+		list_del_init(&sinfo->list);
+		kfree(sinfo);
+	}
 	return 0;
 }