Messages in this thread | | | Date | Thu, 22 May 2014 09:22:22 +0200 | From | Peter Zijlstra <> | Subject | Re: ye olde task_ctx_sched_out trace. |
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On Thu, May 22, 2014 at 09:52:46AM +0300, Adrian Hunter wrote: > +/* > + * PERF_RECORD_MISC_MMAP_DATA and PERF_RECORD_MISC_COMM_EXEC are used on > + * different events so can reuse the same bit position. > + */ > #define PERF_RECORD_MISC_MMAP_DATA (1 << 13) > +#define PERF_RECORD_MISC_COMM_EXEC (1 << 13) > /* > * Indicates that the content of PERF_SAMPLE_IP points to > * the actual instruction that triggered the event. See also > diff --git a/kernel/events/core.c b/kernel/events/core.c > index ed50b09..760abd0 100644 > --- a/kernel/events/core.c > +++ b/kernel/events/core.c > @@ -5067,7 +5067,7 @@ static void perf_event_comm_event(struct perf_comm_event *comm_event) > NULL); > } > > -void perf_event_comm(struct task_struct *task) > +void perf_event_comm(struct task_struct *task, bool exec) > { > struct perf_comm_event comm_event; > struct perf_event_context *ctx; > @@ -5093,7 +5093,7 @@ void perf_event_comm(struct task_struct *task) > .event_id = { > .header = { > .type = PERF_RECORD_COMM, > - .misc = 0, > + .misc = exec ? PERF_RECORD_MISC_COMM_EXEC : 0, > /* .size */ > }, > /* .pid */
OK, now that you pointed out the obvious, yeah, I suppose we can do that :-) [unhandled content-type:application/pgp-signature] | |