From 28b441e24088081c1e213139d1303b451a34a4f4 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= Date: Wed, 4 Sep 2013 22:32:23 +0200 Subject: [PATCH] kvm: free resources after canceling async_pf MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit When we cancel 'async_pf_execute()', we should behave as if the work was never scheduled in 'kvm_setup_async_pf()'. Fixes a bug when we can't unload module because the vm wasn't destroyed. Signed-off-by: Radim Krčmář Reviewed-by: Paolo Bonzini Reviewed-by: Gleb Natapov Signed-off-by: Paolo Bonzini --- virt/kvm/async_pf.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index ea475cd03511..8a39dda7a325 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -101,8 +101,11 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu) typeof(*work), queue); cancel_work_sync(&work->work); list_del(&work->queue); - if (!work->done) /* work was canceled */ + if (!work->done) { /* work was canceled */ + mmdrop(work->mm); + kvm_put_kvm(vcpu->kvm); /* == work->vcpu->kvm */ kmem_cache_free(async_pf_cache, work); + } } spin_lock(&vcpu->async_pf.lock); -- 2.39.2