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authorIngo Molnar2008-12-11 15:17:03 +0100
committerIngo Molnar2008-12-11 15:45:56 +0100
commit6a930700c8b655a9e25e42fc4adc0b225ebbcefc (patch)
tree5b6aa07d2734f43d0c5bc7d97aebe256e6d86fa8 /include/linux/perf_counter.h
parentperf counters: add prctl interface to disable/enable counters (diff)
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perf counters: clean up state transitions
Impact: cleanup Introduce a proper enum for the 3 states of a counter: PERF_COUNTER_STATE_OFF = -1 PERF_COUNTER_STATE_INACTIVE = 0 PERF_COUNTER_STATE_ACTIVE = 1 and rename counter->active to counter->state and propagate the changes everywhere. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/perf_counter.h')
-rw-r--r--include/linux/perf_counter.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 97d86c293ee8..8cb095fa442c 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -128,6 +128,15 @@ struct hw_perf_counter_ops {
};
/**
+ * enum perf_counter_active_state - the states of a counter
+ */
+enum perf_counter_active_state {
+ PERF_COUNTER_STATE_OFF = -1,
+ PERF_COUNTER_STATE_INACTIVE = 0,
+ PERF_COUNTER_STATE_ACTIVE = 1,
+};
+
+/**
* struct perf_counter - performance counter kernel representation:
*/
struct perf_counter {
@@ -136,7 +145,7 @@ struct perf_counter {
struct perf_counter *group_leader;
const struct hw_perf_counter_ops *hw_ops;
- int active;
+ enum perf_counter_active_state state;
#if BITS_PER_LONG == 64
atomic64_t count;
#else