Re: ipi_redirect vs rq_affinity

[Jens Axboe]

On Fri, Jan 24 2014, Christoph Hellwig wrote:
> Hi Jens,
> 
> it seems like blk-mq uses the ipi_redirect attribute in pretty much the
> same way as the old blk-softirq code used the rq_affinity one, except
> that the old code has an additional option to direct into any core in
> the current package.
> 
> Is there any good reason to not reuse the old name and semantics?

It is pretty much the same. I don't like the semantics of the old one,
where it's 0/1/2 for off/on/different-on, though. Seems like now would
be a good time to clean it up.

-- 
Jens Axboe

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