Re: Reiser4 support on parted program ...

[Yury Umanets <yury@clusterfs.com>]

Markus Törnqvist wrote:

>On Wed, Sep 15, 2004 at 04:17:48PM +0300, Yury Umanets wrote:
>  
>
>>Alex is right in both. To add such a support one should write resizing 
>>stuff in libreiser4 first. Then write glue code in parted. IMHO both are 
>>not so difficult. Probably Vitaly or Alex self could do that in week 
>>(may be few days).
>>    
>>
>
>How long for Dr. Orlando and his crew in cooperation with Namesys?-)
>  
>
Have no idea :) I do not know anything about Dr. Orlando and his crew.
Suff itself is not difficult, as there is not tree modifications, etc.

Rough sequence is like this:

(1) make sure, that there is no not replied transactions.

(2) tree traverse and move all nodes and unformatted blocks which do not 
fit to new range (new_start - new_end) one by one to new area. Block 
allocator info should be updated on this stage too.

(3) update some fields in super block. Probably one more update of block 
allocator.

The framework for all these actions exists in libreiser4.

Parted's part is trivial -- just follow the API.

>  
>
>>The only problem Hans seems does not want such a support or does not 
>>count it as somethinf serious attention should be paid to :(
>>    
>>
>
>I think his followers would disagree ;)
>
>  
>


-- 
umka