Re: ioctls, etc. (was Re: [PATCH 1/4] sas: add flag for locally attached PHYs)

Matthew Wilcox
2005-10-21T18:20:12Z

On Fri, Oct 21, 2005 at 02:12:49PM -0400, Luben Tuikov wrote:
> > That beeing said I tried this approach. It looks pretty cool when you
> > think about it, but the block layer is quite a bit too heavyweight for
> > queueing up a few SMP requests, and we need to carry too much useless
> > code around for it.
>
> That's the last reason not to implement SMP as a block device.
> But this is good that you tried it and it "flopped". This way
> people will stop repeating "SMP... block device".

Block layer != Block device.

Nobody wants to implement SMP as a block device.

The question is whether the SMP interface should be implemented as part
of the block layer.