On Thu, Aug 09, 2018 at 09:46:04AM +0800, Lu Fengqi wrote:
> After btrfs_qgroup_reserve_meta_prealloc(), num_bytes will be assigned
> again by btrfs_calc_trans_metadata_size(). Once block_rsv fails, we can't
> properly free the num_bytes of the previous qgroup_reserve. Use a separate
> variable to store the num_bytes of the qgroup_reserve.
>
> Delete the comment for the qgroup_reserved that does not exist and add a
> comment about use_global_rsv.
>
> Fixes: c4c129db5da8 ("btrfs: drop unused parameter qgroup_reserved")
> Signed-off-by: Lu Fengqi <lufq.fnst@xxxxxxxxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
