Re: [PATCH] Btrfs: use the normal checksumming infrastructure for free space cache

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Li Zefan wrote:
> Chris Mason wrote:
>> 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?
>>
> 
> So we need a check, like the one in load_free_space_cache():
> 

oh I misunderstood your question..
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