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SubjectRe: O_DIRECT
RaTao <> wrote:
> Hi!
> While testing linux-2.6.0-test2-mm4 I noticed two things:
> - O_DIRECT doesn't work, at least in ext3, with block size different
> from filesystem's blocksize. (It doesn't work with 512 bs, at least).
> This works in 2.6.0-test2, from 512 to 4096.

It works OK here.

> - vmstat doesn't show bi/bo for O_DIRECT's disk access.

It does here.

I'd be suspecting your test app: is it checking the return value of all
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