sched: update delay-accounting to use CFS's precise stats
update delay-accounting to use CFS's precise stats.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/delayacct.c b/kernel/delayacct.c
index c0148ae..81e6978 100644
--- a/kernel/delayacct.c
+++ b/kernel/delayacct.c
@@ -99,9 +99,10 @@
int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
{
s64 tmp;
- struct timespec ts;
- unsigned long t1,t2,t3;
+ unsigned long t1;
+ unsigned long long t2, t3;
unsigned long flags;
+ struct timespec ts;
/* Though tsk->delays accessed later, early exit avoids
* unnecessary returning of other data
@@ -124,11 +125,10 @@
d->cpu_count += t1;
- jiffies_to_timespec(t2, &ts);
- tmp = (s64)d->cpu_delay_total + timespec_to_ns(&ts);
+ tmp = (s64)d->cpu_delay_total + t2;
d->cpu_delay_total = (tmp < (s64)d->cpu_delay_total) ? 0 : tmp;
- tmp = (s64)d->cpu_run_virtual_total + (s64)jiffies_to_usecs(t3) * 1000;
+ tmp = (s64)d->cpu_run_virtual_total + t3;
d->cpu_run_virtual_total =
(tmp < (s64)d->cpu_run_virtual_total) ? 0 : tmp;