On 2015-09-29 08:00, David Sterba wrote:
> On Mon, Sep 28, 2015 at 05:57:05PM +0000, Gabríel Arthúr Pétursson wrote:
>> The attached patches to linux and btrfs-progs add support for filtering
>> based on the number of strips in a block when balancing.
>
> What usecase do you want to address? As I understand it, this would help
> the raid56 rebalancing to process only blockgroups that are not spread
> accross enough devices.
This could also be helpful when reshaping a raid10 or raid0 setup.