RFR (XS): 8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.

[Vladimir Kozlov]

Why you used #if !defined() instead of #ifndef? We usually use #ifndef when checking one parameter.

Thanks,
Vladimir

On 1/24/14 1:42 AM, Lindenmaier, Goetz wrote:
> Hi,
>
> please review and test this small change:
>
> http://cr.openjdk.java.net/~goetz/webrevs/8032634-1-ifdef/
>
> Please also review it for jdk8u.
>
> There are concerns that the OrderAccess operations we added to accesses of
>
> _/thead/_state for ppc64 harm performance on other platforms.  Thus this change adds
>
> guards #ifdef PPC64 around it.
>
> Best regards,
>
>    Goetz.
>