RFR (M) 8169061: Drop os::is_MP checks from Atomics

[Aleksey Shipilev]

Thanks! Would you mind sponsoring it?

Changeset:
  http://cr.openjdk.java.net/~shade/8169061/hotspot.changeset

-Aleksey

On 04/26/2017 08:42 AM, David Holmes wrote:
> Looks fine to me!
> 
> Thanks,
> David
> -----
> 
> On 26/04/2017 4:36 PM, Aleksey Shipilev wrote:
>> On 04/26/2017 05:29 AM, David Holmes wrote:
>>> One oversight in atomic_bsd_x86.hpp:
>>>
>>>  118 inline void Atomic::inc_ptr(volatile intptr_t* dest) {
>>>  119   __asm__ __volatile__ (  "lock addq $1,(%0)"
>>>  120                         :
>>>  121                         : "r" (dest), "r" (mp)
>>>
>>> Forgot to delete "mp" reference.
>>>
>>> Also copyright years need updating.
>>
>> Right, thanks for running it!
>>
>> I think I captured everything in here:
>>   http://cr.openjdk.java.net/~shade/8169061/webrev.02/
>>
>> Thanks,
>> -Aleksey
>>