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Date: Thu, 27 Dec 2001 11:41:53 -0800
From: Andrew Morton <akpm@zip.com.au>
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To: Linus Torvalds <torvalds@transmeta.com>
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Linus Torvalds wrote:
> 
> The other part of the bio rewrite has been to get rid of another coupling:
> the coupling between "struct buffer_head" (which is used for a limited
> kind of memory management by a number of filesystems) and the act of
> actually just doing IO.
> 
> I used to think that we could just relegate "struct buffer_head" to _be_
> the IO entity, but it turns out to be much easier to just split off the IO
> part, which is why you now have a separate "bio" structure for the block
> IO part, and the buffer_head stuff uses that to get the work done.
> 

So... would it be correct to say that there won't be any large
changes to the buffer_head concept in 2.5?