[sheepdog] Users inputs for new reclaim algorithm, please

[MORITA Kazutaka]

At Tue, 18 Mar 2014 00:02:18 +0800,
Liu Yuan wrote:
> 
> Keep old algorithm is a bottom line to me. Either sheep option or static #ifdef
> looks fine to me. We can later refine it to be dynamically pluggable.
> 
> New algorithm looks to me more a partial solution than a generic one, compared
> with old algorithm. So keep old algorithm really make sense especially to those
> who seldom delete snapshots.

Why partial?  The updated snapshot-object-reclaim branch fixes the
problem you mentioned, and the new algorithm frees more spaces than
the old one even with your example scenario.

Thanks,

Kazutaka