Re: Updated direct IO optimization patchkit v2

[Jeff Moyer]

Andi Kleen <andi@xxxxxxxxxxxxxx> writes:

> Various micro optimizations of the block direct IO path.
>
> This addresses all review comments and adds an additional prefetch
> optimization that gives another about 0.3% in a large macro benchmark.
> Overall the patchkit is worht about 2.2% in the same macro benchmark.
>
> I also ported it to current mainline, resolving some conflicts with
> hch's recent changes to direct-io.

Hi, Andi,

If you get rid of the unlikely I pointed out in patch 11 and address my
question on patch 6 (about always_inline) and repost, I'll ack the
series.  I was hoping hch or Jens would chime in on patch 10, but it
seems they're busy.

Cheers,
Jeff
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