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[dm-devel] Re: [PATCH RFC 0/4] use scatter lists for all block pc requests and simplify hw handlers



On Tue, Jun 07 2005, James Bottomley wrote:
> On Tue, 2005-06-07 at 20:07 +0200, Jens Axboe wrote:
> > Why multi-bio? No one should ever have to build a request with multiple
> > bio's in one go, that's pointless. The only reason multi-bio requests
> > exist is because of the file systems not submitting big extents in one
> > submission. The whole io path would be faster and simpler were it not
> > for multi-bio requests :-)
> 
> OK, OK, sorry thinko ... I meant multi-biovec (which can be a single
> bio) ... however, I'm not the only one who keeps being confused by
> this ...
> 
> Incidentally, do I take it you're happy with all of this and I can take
> (at least the block pieces) through the SCSI tree?

I was planning on trying a block tree out, let me try and merge it first
and look it over if you don't mind.

-- 
Jens Axboe


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