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-rw-r--r--kernel/sched.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 9887ca005c5..5a91fe0b5de 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3303,6 +3303,25 @@ void account_user_time(struct task_struct *p, cputime_t cputime)
}
/*
+ * Account guest cpu time to a process.
+ * @p: the process that the cpu time gets accounted to
+ * @cputime: the cpu time spent in virtual machine since the last update
+ */
+void account_guest_time(struct task_struct *p, cputime_t cputime)
+{
+ cputime64_t tmp;
+ struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
+
+ tmp = cputime_to_cputime64(cputime);
+
+ p->utime = cputime_add(p->utime, cputime);
+ p->gtime = cputime_add(p->gtime, cputime);
+
+ cpustat->user = cputime64_add(cpustat->user, tmp);
+ cpustat->guest = cputime64_add(cpustat->guest, tmp);
+}
+
+/*
* Account system cpu time to a process.
* @p: the process that the cpu time gets accounted to
* @hardirq_offset: the offset to subtract from hardirq_count()
@@ -3315,6 +3334,12 @@ void account_system_time(struct task_struct *p, int hardirq_offset,
struct rq *rq = this_rq();
cputime64_t tmp;
+ if (p->flags & PF_VCPU) {
+ account_guest_time(p, cputime);
+ p->flags &= ~PF_VCPU;
+ return;
+ }
+
p->stime = cputime_add(p->stime, cputime);
/* Add system time to cpustat. */