Btrfs: use helper to cleanup tree roots

free_root_pointers() has been introduced to cleanup all of tree roots,
so just use it instead.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 7bb2869..e066548 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3426,20 +3426,7 @@ int close_ctree(struct btrfs_root *root)
                       percpu_counter_sum(&fs_info->delalloc_bytes));
        }
 
-       free_extent_buffer(fs_info->extent_root->node);
-       free_extent_buffer(fs_info->extent_root->commit_root);
-       free_extent_buffer(fs_info->tree_root->node);
-       free_extent_buffer(fs_info->tree_root->commit_root);
-       free_extent_buffer(fs_info->chunk_root->node);
-       free_extent_buffer(fs_info->chunk_root->commit_root);
-       free_extent_buffer(fs_info->dev_root->node);
-       free_extent_buffer(fs_info->dev_root->commit_root);
-       free_extent_buffer(fs_info->csum_root->node);
-       free_extent_buffer(fs_info->csum_root->commit_root);
-       if (fs_info->quota_root) {
-               free_extent_buffer(fs_info->quota_root->node);
-               free_extent_buffer(fs_info->quota_root->commit_root);
-       }
+       free_root_pointers(fs_info, 1);
 
        btrfs_free_block_groups(fs_info);