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delayacct: Remove braindamaged type conversions 

Converting cputime to timespec and timespec to nanoseconds makes no
sense. Use cputime_to_ns() and be done with it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Thomas Gleixner 2014-07-16 21:04:37 +00:00 committed by John Stultz
parent 9667a23db0
commit 68f6783d28
1 changed files with 7 additions and 11 deletions
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18
kernel/delayacct.c
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@ -82,23 +82,19 @@ void __delayacct_blkio_end(void)
int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
{
s64 tmp;
unsigned long t1;
unsigned long long t2, t3;
unsigned long flags;
struct timespec ts;
cputime_t utime, stime, stimescaled, utimescaled;
unsigned long long t2, t3;
unsigned long flags, t1;
s64 tmp;
tmp = (s64)d->cpu_run_real_total;
task_cputime(tsk, &utime, &stime);
cputime_to_timespec(utime + stime, &ts);
tmp += timespec_to_ns(&ts);
tmp = (s64)d->cpu_run_real_total;
tmp += cputime_to_nsecs(utime + stime);
d->cpu_run_real_total = (tmp < (s64)d->cpu_run_real_total) ? 0 : tmp;
tmp = (s64)d->cpu_scaled_run_real_total;
task_cputime_scaled(tsk, &utimescaled, &stimescaled);
cputime_to_timespec(utimescaled + stimescaled, &ts);
tmp += timespec_to_ns(&ts);
tmp = (s64)d->cpu_scaled_run_real_total;
tmp += cputime_to_nsecs(utimescaled + stimescaled);
d->cpu_scaled_run_real_total =
(tmp < (s64)d->cpu_scaled_run_real_total) ? 0 : tmp;