Re: [00/17] Large Blocksize Support V3

[Avi Kivity]

David Chinner wrote:
> > Why is it necessary to assume that one filesystem block == one buffer?  
> > Is it for atomicity, efficiency, or something else?
> >     
>
> By definition, really - each filesystem block has it's own state and
> it's own disk mapping and so we need something to carry that
> information around....
>   

Well, for block sizes > PAGE_SIZE, you can just duplicate the mapping 
information (with an offset-in-block bit field) in each page's struct 
page.  But I see from your other posts that there are atomicity and 
performance reasons as well.

--
error compiling committee.c: too many arguments to function

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