Re: PERF_EVENT_IOC_SET_FILTER has different values based on bitness

[Andi Kleen <andi@firstfloor.org>]

David Ahern <dsahern@gmail.com> writes:
>>
>> diff --git a/kernel/events/core.c b/kernel/events/core.c
>> index 963bf139e2b2..c805132ac1cf 100644
>> --- a/kernel/events/core.c
>> +++ b/kernel/events/core.c
>> @@ -3714,6 +3714,7 @@ static long perf_ioctl(struct file *file, unsigned
>> int cmd, unsigned long arg)
>>      }
>>
>>      case PERF_EVENT_IOC_SET_FILTER:
>> +   case PERF_EVENT_IOC_SET_FILTER_32:
>>          return perf_event_set_filter(event, (void __user *)arg);
>>
>>      default:
>>
>
> Oh, PERF_EVENT_IOC_ID has the same problem:
>
> #define PERF_EVENT_IOC_ID               _IOR('$', 7, __u64 *)

The right way is to add a compat_perf_ioctl() 

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only