Btrfs: Add checking of csum tree in balancing code

This updates the space balancing code for the
new checksum format.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index c72f4f3b912c..6f042de1ac43 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1097,6 +1097,8 @@ struct btrfs_root *btrfs_read_fs_root_no_name(struct btrfs_fs_info *fs_info,
                 return fs_info->chunk_root;
         if (location->objectid == BTRFS_DEV_TREE_OBJECTID)
                 return fs_info->dev_root;
+        if (location->objectid == BTRFS_CSUM_TREE_OBJECTID)
+                return fs_info->csum_root;
 
         root = radix_tree_lookup(&fs_info->fs_roots_radix,
                                  (unsigned long)location->objectid);