Re: ipi_redirect vs rq_affinity

[Christoph Hellwig]

On Fri, Jan 24, 2014 at 11:11:29AM -0800, Jens Axboe wrote:
> 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.

I don't think arbitrarily breaking this fairly widely used interface
when a driver is moving to blk-mq sounds like a good idea.  Maybe we
should allow for setting descriptive strings as well?

Also the different on semantics do matter for some use cases, and we
should support both for blk-mq.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/