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KVM: s390: get rid of constant condition in ipte_unlock_simple 

Due to the earlier check we know that ipte_lock_count must be 0.
No need to add a useless if. Let's make clear that we are going
to always wakeup when we execute that code.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Christian Borntraeger 2014-09-03 21:17:03 +02:00
parent f346026e55
commit 6b331952f1
1 changed files with 1 additions and 2 deletions
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3
arch/s390/kvm/gaccess.c
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@ -254,8 +254,7 @@ static void ipte_unlock_simple(struct kvm_vcpu *vcpu)
new = old = ACCESS_ONCE(*ic);
new.k = 0;
} while (cmpxchg(&ic->val, old.val, new.val) != old.val);
if (!ipte_lock_count)
wake_up(&vcpu->kvm->arch.ipte_wq);
wake_up(&vcpu->kvm->arch.ipte_wq);
out:
mutex_unlock(&ipte_mutex);
}