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Commit 9f2ceda4 authored by Dominik Dingel's avatar Dominik Dingel Committed by Christian Borntraeger
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KVM: async_pf: Allow to wait for outstanding work 



On s390 we are not able to cancel work. Instead we will flush the work and wait for
completion.

Signed-off-by: default avatarDominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
parent e0ead41a

virt/kvm/async_pf.c

+5 −0
Original line number Diff line number Diff line
@@ -113,11 +113,16 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu) 
			list_entry(vcpu->async_pf.queue.next,

				   typeof(*work), queue);

		list_del(&work->queue);



#ifdef CONFIG_KVM_ASYNC_PF_SYNC

		flush_work(&work->work);

#else

		if (cancel_work_sync(&work->work)) {

			mmdrop(work->mm);

			kvm_put_kvm(vcpu->kvm); /* == work->vcpu->kvm */

			kmem_cache_free(async_pf_cache, work);

		}

#endif

	}



	spin_lock(&vcpu->async_pf.lock);