Request for code review - JDK-8141123 Change int's to size_t in FreeIdSet

[Tom Benson]

Hi Alex,
I notice the the new code in claim_par_id seems to have a needless 
conditional at 526:

  521   while (_hd == end_of_list) {
  522     _waiters++;
  523     _mon->wait(Mutex::_no_safepoint_check_flag);
  524     _waiters--;
  525   }
  526   if (_hd == end_of_list) {
  527     return UINT_MAX;
  528   } else {

The old code used to break out of the loop if "safepoint" was true, so 
the conditional was useful.

Aside from that, the change looks OK to me.
Tom

On 11/20/2015 11:12 AM, Alexander Harlap wrote:
> I changed title of CR.
>
> Alex
>
> On 11/19/2015 4:19 AM, Thomas Schatzl wrote:
>> Hi,
>>
>> On Wed, 2015-11-18 at 21:37 +0100, Thomas Schatzl wrote:
>>> Hi,
>>>
>>> On Mon, 2015-11-16 at 13:25 -0500, Alexander Harlap wrote:
>>>> Here is another revision,
>>>>
>>>> http://cr.openjdk.java.net/~aharlap/8141123/webrev.02/
>>>>
>>>> It has more cleanup.
>>>>
>>>> Version was tested by RBT.
>>>>
>>    please change the subject of the CR, as it is more a general cleanup
>> of the code now.
>> Alternatively you may split this change into two CRs, one just removing
>> code, the other changing types.
>>
>> I am fine with either.
>>
>> Thanks,
>>    Thomas
>>
>>
>