KVM: Convert vm lock to a mutex

This allows the kvm mmu to perform sleepy operations, such as memory
allocation.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 3997bbd78fb7..9a840e08b207 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -941,21 +941,21 @@ static int pf_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
         if (is_external_interrupt(exit_int_info))
                 push_irq(vcpu, exit_int_info & SVM_EVTINJ_VEC_MASK);
 
-        spin_lock(&vcpu->kvm->lock);
+        mutex_lock(&vcpu->kvm->lock);
 
         fault_address  = svm->vmcb->control.exit_info_2;
         error_code = svm->vmcb->control.exit_info_1;
         r = kvm_mmu_page_fault(vcpu, fault_address, error_code);
         if (r < 0) {
-                spin_unlock(&vcpu->kvm->lock);
+                mutex_unlock(&vcpu->kvm->lock);
                 return r;
         }
         if (!r) {
-                spin_unlock(&vcpu->kvm->lock);
+                mutex_unlock(&vcpu->kvm->lock);
                 return 1;
         }
         er = emulate_instruction(vcpu, kvm_run, fault_address, error_code);
-        spin_unlock(&vcpu->kvm->lock);
+        mutex_unlock(&vcpu->kvm->lock);
 
         switch (er) {
         case EMULATE_DONE: