Thread (29 messages) 29 messages, 5 authors, 2018-12-12

Re: [PATCH 01/10] perf/core: Add macro to test for event exclusion flags

From: Peter Zijlstra <peterz@infradead.org>
Date: 2018-11-19 12:58:20
Also in: linux-alpha, linux-arm-kernel, lkml

On Fri, Nov 16, 2018 at 10:24:04AM +0000, Andrew Murray wrote:
Add a macro that tests if any of the perf event exclusion flags
are set on a given event.
It is in fact an inline function, not a CPP macro.
quoted hunk ↗ jump to hunk
Signed-off-by: Andrew Murray <redacted>
---
 include/linux/perf_event.h | 9 +++++++++
 1 file changed, 9 insertions(+)
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 53c500f..89ee7fa 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1004,6 +1004,15 @@ perf_event__output_id_sample(struct perf_event *event,
 extern void
 perf_log_lost_samples(struct perf_event *event, u64 lost);
 
+static inline bool event_has_exclude_flags(struct perf_event *event)
+{
+	struct perf_event_attr *attr = &event->attr;
+
+	return attr->exclude_idle || attr->exclude_user ||
+	       attr->exclude_kernel || attr->exclude_hv ||
+	       attr->exclude_guest || attr->exclude_host;
+}
+
 static inline bool is_sampling_event(struct perf_event *event)
 {
 	return event->attr.sample_period != 0;
-- 
2.7.4
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