On Sat, Nov 17, 2018 at 09:29:27AM +0800, Anand Jain wrote: > > - ret = find_free_dev_extent(trans, device, min_free, > > - &dev_offset, NULL); > > - if (!ret) > > + if (!find_free_dev_extent(trans, device, min_free, > > + &dev_offset, NULL)) > > This can return -ENOMEM; > > > @@ -2856,8 +2856,7 @@ static int btrfs_relocate_chunk(struct btrfs_fs_info *fs_info, u64 chunk_offset) > > */ > > lockdep_assert_held(&fs_info->delete_unused_bgs_mutex); > > > > - ret = btrfs_can_relocate(fs_info, chunk_offset); > > - if (ret) > > + if (!btrfs_can_relocate(fs_info, chunk_offset)) > > return -ENOSPC; > > And ends up converting -ENOMEM to -ENOSPC. > > Its better to propagate the accurate error. Right, converting to bool is obscuring the reason why the functions fail. Making the code simpler at this cost does not look like a good idea to me. I'll remove the patch from misc-next for now.
