[dm-devel] Re: [RFC] issues with device mapper snapshots

[Dave Olien]

That sounds like a plan. I'm guessing Jens Axboe is probably the one
who ultimately has to be convinced.

On Wed, Jun 30, 2004 at 01:46:43PM -0500, Kevin Corry wrote:
> 
> I don't think it would be impossible to get this change into fs/bio.c during 
> 2.6. It would mostly be a matter of setting up the infrastructure (for which 
> there would be no initial users). Then we'd want to create a global pool 
> (sometime during kernel initialization) that would mimic the existing global 
> bio pool. Then make it so calls to bio_clone() and bio_alloc() would always 
> go to this global pool, which would mean a minimum of existing kernel code 
> would need to change. Then we'd be able to switch users of 
> bio_alloc/bio_clone over to private pools as necessary.
> 
> -- 
> Kevin Corry
> kevcorry at us.ibm.com
> http://evms.sourceforge.net/
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