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SubjectRe: disk head scheduling

On Thu, 25 Mar 1999 22:06:45 +0100 (MET), Gerard Roudier
<> said:

> The plugging will probably get not enough if we ever want to ensure some
> ordering of actual IOs to be guaranteed to upper layers.

Plugging was never supposed to do that: it was there only to let us
coalesce multiple adjacent IO requests being generated at the same time
by the kernel (for example, the file readahead code or the write-back


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