Avi, Ingo, Laurent,
what do you think about the following patch?
Currently the scheduler checks for PF_VCPU to decide if this
timeslice has to be accounted as guest time. On s390 host
interrupts are not disabled during guest execution. This causes
these interrupts to be accounted as guest time.
Solution is to check for in_interrupt to let interrupt time
account as soft or hardirq.
Signed-off-by: Christian Borntraeger <[EMAIL PROTECTED]>
---
kernel/sched.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: kvm/kernel/sched.c
===================================================================
--- kvm.orig/kernel/sched.c
+++ kvm/kernel/sched.c
@@ -3395,7 +3395,7 @@ void account_system_time(struct task_str
struct rq *rq = this_rq();
cputime64_t tmp;
- if (p->flags & PF_VCPU) {
+ if ((p->flags & PF_VCPU) && !in_interrupt()) {
account_guest_time(p, cputime);
return;
}
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