On 2014-11-12 at 15:19, Eric Blake wrote:
On 11/10/2014 06:45 AM, Max Reitz wrote:
Add a function qcow2_change_refcount_order() which allows changing the
refcount order of a qcow2 image.
A thought: didn't you just submit a patch that marked the image as
dirty, nuked the on-disk refcount, then rebuilt one using the in-memory
refcounts? Would reusing THAT code be any better than writing this patch?
Yes, I thought about that, too... The problem is that that patch
requires all refcount blocks to fit in memory at the same time (or
generally, the qcow2 check function requires that, for now). I'd really
like to avoid that, if possible, but maybe it isn't possible after all.
But if you say it like that ("nuke"), I guess I'll give it a try. Maybe
it looks funny enough.
Max
