diff options
| author | Paul Mackerras <paulus@samba.org> | 2015-07-16 09:11:14 +0200 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2015-08-22 11:16:19 +0200 |
| commit | 563a1e93afac4d2c135072461fbab418b9dff43f (patch) | |
| tree | c63509f4a46f0b512c4defd9f460751ed510e04b /arch | |
| parent | KVM: PPC: Book3S HV: Fix preempted vcore list locking (diff) | |
| download | linux-563a1e93afac4d2c135072461fbab418b9dff43f.tar.xz linux-563a1e93afac4d2c135072461fbab418b9dff43f.zip | |
KVM: PPC: Book3S HV: Fix preempted vcore stolen time calculation
Whenever a vcore state is VCORE_PREEMPT we need to be counting stolen
time for it. This currently isn't the case when we have a vcore that
no longer has any runnable threads in it but still has a runner task,
so we do an explicit call to kvmppc_core_start_stolen() in that case.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 3d022766294a..fad52f226c12 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -2283,9 +2283,14 @@ static void post_guest_process(struct kvmppc_vcore *vc, bool is_master) } list_del_init(&vc->preempt_list); if (!is_master) { - vc->vcore_state = vc->runner ? VCORE_PREEMPT : VCORE_INACTIVE; - if (still_running > 0) + if (still_running > 0) { kvmppc_vcore_preempt(vc); + } else if (vc->runner) { + vc->vcore_state = VCORE_PREEMPT; + kvmppc_core_start_stolen(vc); + } else { + vc->vcore_state = VCORE_INACTIVE; + } if (vc->n_runnable > 0 && vc->runner == NULL) { /* make sure there's a candidate runner awake */ vcpu = list_first_entry(&vc->runnable_threads, |