svn commit: r219676 - head/sys/x86/x86

[Jung-uk Kim]

On Thursday 24 March 2011 09:58 am, David Malone wrote:
> > No new ones.  Just the old ones of updating the frequency and all
> > related variables without races.
>
> Is something simple, line an atomic write, an option for this? I
> guess we don't have 64-bit atomic writes on all platforms, but we
> could support it on some platforms.

If atomic 64-bit read/write is possible and it is absolutely 
necessary, it has to be set via machdep.foo_freq, not 
kern.timecounter.foo.frequency.

Jung-uk Kim