On 14 May 2008, Jeff Dike verbalised:

> On Wed, May 14, 2008 at 09:12:12PM +0100, Nix wrote:
>> Oh, and, it's pedantic of me, I know, but what does this do if time goes
>> backwards in the NO_HZ case? (Or is handling that a 2.6.26 thing?)
>
> In all cases, it holds time steady until the host catches up with what
> the guest thinks the time should be.

Yeah, that's what I was doing too: but mine didn't work. Odd.

> I noticed you wrapped last_tick business in one of the ifdefs - I
> didn't look carefully to see whether that would explain the behavior
> difference.  I just made it unconditional.

The only reason I wrapped it in the ifdefs was because the !NO_HZ case
had to keep the skew calculations up to date, while the NO_HZ case
didn't have to bother. It shouldn't have affected anything else.

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