From: Peter Zijlstra Date: Fri, 26 Jun 2009 11:10:23 +0000 (+0200) Subject: perf_counter: Complete counter swap X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=19d2e755436054dfc2be640bffc32e427c37ac3d;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git perf_counter: Complete counter swap Complete the counter swap by indeed switching the times too and updating the userpage after modifying the counter values. Signed-off-by: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <1246014623.31755.195.camel@twins> Signed-off-by: Ingo Molnar --- diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index f2f232696587..66ab1e9d1294 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1048,9 +1048,14 @@ static void __perf_counter_sync_stat(struct perf_counter *counter, value = atomic64_xchg(&counter->count, value); atomic64_set(&next_counter->count, value); + swap(counter->total_time_enabled, next_counter->total_time_enabled); + swap(counter->total_time_running, next_counter->total_time_running); + /* - * XXX also sync time_enabled and time_running ? + * Since we swizzled the values, update the user visible data too. */ + perf_counter_update_userpage(counter); + perf_counter_update_userpage(next_counter); } #define list_next_entry(pos, member) \