[Xen-devel] Re: [PATCH 04/15] xen/trace: add multicall tracing

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 06/21/2011 06:52 AM, Konrad Rzeszutek Wilk wrote:
>> +TRACE_EVENT(xen_mc_entry,
>> +        TP_PROTO(struct multicall_entry *mc, unsigned nargs),
>> +        TP_ARGS(mc, nargs),
>> +        TP_STRUCT__entry(
>> +                __field(unsigned short, op)
>> +                __field(unsigned short, nargs)
>> +                __array(unsigned long, args, 6)
> Not 'unsigned long' for op?

I wanted to save space in the trace buffer.  I think hypercall numbers
are all small?

    J


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