On Sat, 2007-02-17 at 15:56 +0100, Andi Kleen wrote:
> > This is one of the reasons why we don't just use good old
> > do_gettimeofday(), since it takes locks and can lead to lock recursion
> > if parts of itself are probed.
> do_gettimeofday doesn't take locks.
> Only restriction is that you can't single step it with long
> pauses between instructions.
Err, it uses read side of xtime lock, so you can not call it from a
place which write locks xtime lock.
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