Re: Random file I/O regressions in 2.6

[Arjan van de Ven]

> 
> That would cause the kernel to perform lots of pointless pagecache lookups
> when the file is already 100% cached.

well surely the read itself will do those AGAIN anyway, so in the fully
cached case this is just warming up the cpu cache ;)  (and thus really
cheap as nett cost I suspect)

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