On Sat, 28 Apr 2007, Maxim Levitsky wrote:

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> 1) Is it possible for block device to assume that it will alway get big 
> requests (and aligned by big blocksize) ?

That is one of the key problems. We hope that Mel Gorman's antifrag work 
will get us there.
 
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> 2) Does metadata reading/writing occuress also using same big blocksize ?

It can if the filesystem decides to and sets up the order the mapping.
 
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> 3 If so, How __bread/__getblk are affrected? Does returned buffer_head point 
> to whole block ?

Correct.

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