BZ 20822 :powerpc: race condition in __lll_unlock_elision

[Rajalakshmi Srinivasaraghavan]

On 11/16/2016 08:01 PM, Adhemerval Zanella wrote:
> nyway, I see the correct fix to just just move the adapt_count
> to inside the transaction.
Thanks Adhemerval and Szabolcs for the inputs.
I posted a patch in libc-alpha for the same.  While this is moving, I will
try to analyze the performance impact, if any.