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Diffstat (limited to 'kernel/time/posix-cpu-timers.c')
| -rw-r--r-- | kernel/time/posix-cpu-timers.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c index 220e3c7ae849..11c841c6a45d 100644 --- a/kernel/time/posix-cpu-timers.c +++ b/kernel/time/posix-cpu-timers.c @@ -202,6 +202,32 @@ static u64 cpu_clock_sample(const clockid_t clkid, struct task_struct *p) return 0; } +static inline void store_samples(u64 *samples, u64 stime, u64 utime, u64 rtime) +{ + samples[CPUCLOCK_PROF] = stime + utime; + samples[CPUCLOCK_VIRT] = utime; + samples[CPUCLOCK_SCHED] = rtime; +} + +static void task_sample_cputime(struct task_struct *p, u64 *samples) +{ + u64 stime, utime; + + task_cputime(p, &utime, &stime); + store_samples(samples, stime, utime, p->se.sum_exec_runtime); +} + +static void proc_sample_cputime_atomic(struct task_cputime_atomic *at, + u64 *samples) +{ + u64 stime, utime, rtime; + + utime = atomic64_read(&at->utime); + stime = atomic64_read(&at->stime); + rtime = atomic64_read(&at->sum_exec_runtime); + store_samples(samples, stime, utime, rtime); +} + /* * Set cputime to sum_cputime if sum_cputime > cputime. Use cmpxchg * to avoid race conditions with concurrent updates to cputime. |