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[Qemu-devel] [PATCH v4 3/6] [trivial] trace: Cosmetic changes on fast-pa
From: |
Lluís Vilanova |
Subject: |
[Qemu-devel] [PATCH v4 3/6] [trivial] trace: Cosmetic changes on fast-path tracing |
Date: |
Tue, 14 Jun 2016 15:11:06 +0200 |
User-agent: |
StGit/0.17.1-dirty |
Signed-off-by: Lluís Vilanova <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
---
trace/control-internal.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/trace/control-internal.h b/trace/control-internal.h
index 0ba10fe..3f368fd 100644
--- a/trace/control-internal.h
+++ b/trace/control-internal.h
@@ -62,14 +62,17 @@ static inline bool trace_event_get_state_static(TraceEvent
*ev)
return ev->sstate;
}
-static inline bool trace_event_get_state_dynamic_by_id(int id)
+static inline bool trace_event_get_state_dynamic_by_id(TraceEventID id)
{
+ /* it's on fast path, avoid consistency checks (asserts) */
return unlikely(trace_events_enabled_count) && trace_events_dstate[id];
}
static inline bool trace_event_get_state_dynamic(TraceEvent *ev)
{
- int id = trace_event_get_id(ev);
+ TraceEventID id;
+ assert(trace_event_get_state_static(ev));
+ id = trace_event_get_id(ev);
return trace_event_get_state_dynamic_by_id(id);
}
[Qemu-devel] [PATCH v4 6/6] trace: Add QAPI/QMP interfaces to query and control per-vCPU tracing state, Lluís Vilanova, 2016/06/14