[PATCH v2 09/10] powerpc/hv-24x7: Define update_event_count()

From: Sukadev Bhattiprolu
Date: Mon Mar 30 2015 - 21:55:44 EST


Move the code to update an event count into a new function,
update_event_count().

Signed-off-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx>
---
arch/powerpc/perf/hv-24x7.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index 676fb2f9..cf82026 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -1172,16 +1172,22 @@ static u64 h_24x7_get_value(struct perf_event *event)
return ct;
}

-static void h_24x7_event_read(struct perf_event *event)
+static void update_event_count(struct perf_event *event, u64 now)
{
s64 prev;
- u64 now;

- now = h_24x7_get_value(event);
prev = local64_xchg(&event->hw.prev_count, now);
local64_add(now - prev, &event->count);
}

+static void h_24x7_event_read(struct perf_event *event)
+{
+ u64 now;
+
+ now = h_24x7_get_value(event);
+ update_event_count(event, now);
+}
+
static void h_24x7_event_start(struct perf_event *event, int flags)
{
if (flags & PERF_EF_RELOAD)
--
1.8.3.1

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