From: Wanpeng Li <wanpengli@xxxxxxxxxxx> Inspired by commit 262de4102c7bb8 (kvm: exit halt polling on need_resched() as well), due to PPC implements an arch specific halt polling logic, we should add the need_resched() checking there as well. Cc: Paul Mackerras <paulus@xxxxxxxxxx> Signed-off-by: Wanpeng Li <wanpengli@xxxxxxxxxxx> --- arch/powerpc/kvm/book3s_hv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 28a80d2..6199397 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -3936,7 +3936,8 @@ static void kvmppc_vcore_blocked(struct kvmppc_vcore *vc) break; } cur = ktime_get(); - } while (single_task_running() && ktime_before(cur, stop)); + } while (single_task_running() && !need_resched() && + ktime_before(cur, stop)); spin_lock(&vc->lock); vc->vcore_state = VCORE_INACTIVE; -- 2.7.4
