Re: [PATCH] block: Make CFQ default to IOPS mode on SSDs

[Romain Francoise]

Hi,

On Tue, Jun 09, 2015 at 11:42:29AM -0600, Jens Axboe wrote:
> There are a few options to handle this. The attached might work, not
> tested at all. Basically it adds an io sched registration hook, that is
> called when we are adding the disk on the queue. Non-rotational
> detection should be done at that point.
>
> Does that work for you?

Yep, that works perfectly in my (admittedly limited) testing; slice_idle
is correctly set to 0 on non-rotational devices and keeps its default
value of 8 otherwise. Feel free to add my Tested-by.

Thanks!
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