Messages in this thread | | | Date | Wed, 8 Aug 2007 12:17:00 +0200 | From | Andi Kleen <> | Subject | Re: allow non root users to set io priority "idle" ? |
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> I don't think it's a problem for high priority (RT) tasks - it's well > known in the real time Linux community that you never, ever do IO from > a thread that has to satisfy RT constraints.
The point here is to protect the system from a potentially malicious user
> which I would > expect to take fewer locks.
Even a single lock is one too much. My example lock -- the page lock bit -- certainly applies to both reads and writes.
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