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SubjectRe: [PATCH] ide write barrier support
Jens wrote:

>The problem is that as far as I can see the best way to make fsync
>really work is to make the last write a barrier write. That
>automagically gets everything right for you - when the last block goes
>to disk, you know the previous ones have already. And when the last
>block completes, you know the whole lot is on platter.
>
Are you sure?
What prevents the io scheduler from writing the last block before other
blocks?

--
Manfred

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