From 529ce8c9ddd00bd1ee77727f7a83c02dff0684f8 Mon Sep 17 00:00:00 2001 From: Sukadev Bhattiprolu Date: Mon, 30 Mar 2015 18:53:46 -0700 Subject: [PATCH] powerpc/perf/hv-24x7: Define update_event_count() Move the code to update an event count into a new function, update_event_count(). Signed-off-by: Sukadev Bhattiprolu Signed-off-by: Michael Ellerman --- 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 676fb2f93825..cf820269bfb6 100644 --- a/arch/powerpc/perf/hv-24x7.c +++ b/arch/powerpc/perf/hv-24x7.c @@ -1172,14 +1172,20 @@ 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; + + 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); - prev = local64_xchg(&event->hw.prev_count, now); - local64_add(now - prev, &event->count); + update_event_count(event, now); } static void h_24x7_event_start(struct perf_event *event, int flags)