1 files changed, 8 insertions, 0 deletions

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 8bb452456d90..dd1c03aea2df 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -185,6 +185,10 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans,
         btrfs_set_header_owner(cow, new_root_objectid);
         btrfs_clear_header_flag(cow, BTRFS_HEADER_FLAG_WRITTEN);
 
+        write_extent_buffer(cow, root->fs_info->fsid,
+                            (unsigned long)btrfs_header_fsid(cow),
+                            BTRFS_FSID_SIZE);
+
         WARN_ON(btrfs_header_generation(buf) > trans->transid);
         ret = btrfs_inc_ref(trans, new_root, buf, cow, NULL);
         kfree(new_root);
@@ -274,6 +278,10 @@ int noinline __btrfs_cow_block(struct btrfs_trans_handle *trans,
         btrfs_set_header_owner(cow, root->root_key.objectid);
         btrfs_clear_header_flag(cow, BTRFS_HEADER_FLAG_WRITTEN);
 
+        write_extent_buffer(cow, root->fs_info->fsid,
+                            (unsigned long)btrfs_header_fsid(cow),
+                            BTRFS_FSID_SIZE);
+
         WARN_ON(btrfs_header_generation(buf) > trans->transid);
         if (btrfs_header_generation(buf) != trans->transid) {
                 u32 nr_extents;