From b9f67a420b3d76991592558af06e9cf1b8953b3d Mon Sep 17 00:00:00 2001 From: Davidlohr Bueso Date: Wed, 13 Sep 2017 13:08:19 -0700 Subject: [PATCH] kvm,async_pf: Use swq_has_sleeper() ... as we've got the new helper now. This caller already does the right thing, hence no changes in semantics. Signed-off-by: Davidlohr Bueso Signed-off-by: Paolo Bonzini --- virt/kvm/async_pf.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index bb298a200cd3..57bcb27dcf30 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -106,11 +106,7 @@ static void async_pf_execute(struct work_struct *work) trace_kvm_async_pf_completed(addr, gva); - /* - * This memory barrier pairs with prepare_to_wait's set_current_state() - */ - smp_mb(); - if (swait_active(&vcpu->wq)) + if (swq_has_sleeper(&vcpu->wq)) swake_up(&vcpu->wq); mmput(mm); -- 2.20.1