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KVM: s390: Fix vcpu_load handling in interrupt code

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Recent changes (KVM: make processes waiting on vcpu mutex killable)
now requires to check the return value of vcpu_load. This triggered
a warning in s390 specific kvm code. Turns out that we can actually
remove the put/load, since schedule will do the right thing via
the preempt notifiers.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Christian Borntraeger 2012-09-27 17:29:45 +02:00 committed by Avi Kivity
parent c863901075
commit 3d11df7abb
1 changed files with 0 additions and 2 deletions
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2
arch/s390/kvm/interrupt.c
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@ -423,9 +423,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_bh(&vcpu->arch.local_int.lock);
spin_unlock(&vcpu->arch.local_int.float_int->lock);
vcpu_put(vcpu);
schedule();
vcpu_load(vcpu);
spin_lock(&vcpu->arch.local_int.float_int->lock);
spin_lock_bh(&vcpu->arch.local_int.lock);
}