[PATCH 11/16] linux: Optimize fallback 32-bit clock_gettime

[Adhemerval Zanella]

On 18/12/2019 05:53, Andreas Schwab wrote:
> On Dez 17 2019, Adhemerval Zanella wrote:
> 
>> diff --git a/sysdeps/unix/sysv/linux/clock_gettime.c b/sysdeps/unix/sysv/linux/clock_gettime.c
>> index 9be1f779e3..2a8ad0acc5 100644
>> --- a/sysdeps/unix/sysv/linux/clock_gettime.c
>> +++ b/sysdeps/unix/sysv/linux/clock_gettime.c
>> @@ -43,13 +43,21 @@ __clock_gettime64 (clockid_t clock_id, struct __timespec64 *tp)
>>    int r;
>>    /* Old 32-bit ABI with possible 64-bit time_t support.  */
>>  # ifdef __NR_clock_gettime64
>> +  /* Avoid issue a __NR_clock_gettime64 syscall on kernels that do not
>> +     support 64-bit time_t.  */
>> +  static int time64_support = 1;
>> +  if (atomic_load_relaxed (&time64_support) == 1)
> 
> Just != 0 should be enough.
> 
> Andreas.

Ack.