[PATCH] Harden tcache double-free check

[Adhemerval Zanella]

On 07/07/2021 15:12, Siddhesh Poyarekar wrote:
> On 7/7/21 11:39 PM, Adhemerval Zanella via Libc-alpha wrote:
>> Yes, but it is essentially what you are doing here: query getrandom
>> with GRND_NONBLOCK a falling back to clock_gettime.  And we also
>> have the random_bits from include/random-bits.h.
>>
>> I think we would better to consolidate it with only one implementation.
> 
> The randomness needs are quite different, but I see your point.  We could make a separate random_bits64 to cater to these two use cases. Can it be a separate patch though?  I'll put it on top of this one.

I think it can be separate consolidation, what I am trying to avoid is
multiple random_bits implementation which different semantics within
glibc.