Re: [PATCH 03/20] blkio: Introduce the notion of weights

[Jeff Moyer]

Vivek Goyal <vgoyal@xxxxxxxxxx> writes:

> o Introduce the notion of weights. Priorities are mapped to weights internally.
>   These weights will be useful once IO groups are introduced and group's share
>   will be decided by the group weight.

I'm sorry, but I need more background to review this patch.  Where do
the min and max come from?  Why do you scale 7-0 from 200-900?  How does
this map to what was there before (exactly, approximately)?

Cheers,
Jeff
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