[PATCH 2/3] nptl: Move cancel state out of cancelhandling

[Florian Weimer]

* Adhemerval Zanella:

>>> (I have not reviewed this patch, I raised this question because this
>>> particular change stood out on my first pass through the patch.)
>> 
>> Alright, what about this commit message then:
>> 
>>   The thread cancellation state is not accessed concurrently internally
>>   neither the pthread interface allows changing the state of a different
>>   thread than its own.
>> 
>>   By removing the cancel state out of the internal thread cancel handling
>>   state there is no need to check if cancelled bit was set in CAS
>>   operation.
>> 
>>   The code is also simplified: the CANCELLATION_P is replaced with a
>>   internal pthread_testcancel call and the CANCELSTATE_BIT{MASK} is
>>   removed.
>> 
>>   Checked on x86_64-linux-gnu.
>> 
>
> Florian, is the commit message change enough to move forward or do you
> think this patch requires some work/change?
>
> (this is a pre-requisite to BZ#12678 which I would like to progress 
> as well). 

As I said, I have not yet reviewed the patch.  It is on my to-do list,
though.