Excerpts from Li Zefan's message of 2011-06-12 21:52:32 -0400:
> Josef Bacik wrote:
> > We used to store the checksums of the space cache directly in the space 
> > cache,
> > however that doesn't work out too well if we have more space than we can 
> > fit the
> > checksums into the first page.  So instead use the normal checksumming
> > infrastructure.  There were problems with doing this originally but those
> > problems don't exist now so this works out fine.  Thanks,
> > 
> 
> This looks great, so I'll drop my patch that extends the original code to
> allow more than 1 crc page.

I do like them a lot, but what happens when a special case crc kernel
mounts a free space cache created by this patch?

-chris
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