btrfs: handle btrfs_update_reloc_root failure in commit_fs_roots

btrfs_update_reloc_root will will return errors in the future, so handle
the error properly in commit_fs_roots.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 4e9e751..62f5195 100644 (file)
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1363,7 +1363,9 @@ static noinline int commit_fs_roots(struct btrfs_trans_handle *trans)
                        spin_unlock(&fs_info->fs_roots_radix_lock);
 
                        btrfs_free_log(trans, root);
-                       btrfs_update_reloc_root(trans, root);
+                       ret2 = btrfs_update_reloc_root(trans, root);
+                       if (ret2)
+                               return ret2;
 
                        /* see comments in should_cow_block() */
                        clear_bit(BTRFS_ROOT_FORCE_COW, &root->state);