Re: patch: aio + bio for raw io

[Benjamin LaHaise]

On Fri, Feb 08, 2002 at 03:10:09PM +0530, Suparna Bhattacharya wrote:
> You chose to add a kvec_cb field to the bio structure rather than use
> bi_private ?

Yup.  I'm lazy.  Also, the cb struct actually needs 2 pointers, so just 
bi_private isn't enough.

> For the raw path, you are OK since you never have to copy data out of 
> the kvecs after i/o completion, and unmap_kvec only looks at veclet pages. 
> So the fact block can change the offset and len fields in the veclets 
> doesn't affect you, but thought I'd mention it as a point of caution
> anyhow ...

Ugh.  That sounds like something bio should not be doing.  If someone 
wants to fix it, such a patch would be much appreciated, otherwise it'll 
wait until I'm back in Canada.

		-ben