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Message-ID: <CAPm50aJTh7optC=gBXfj+1HKVu+9U0165mYH0sjj3Jqgf8Aivg@mail.gmail.com>
Date: Thu, 8 Dec 2022 09:19:08 +0800
From: Hao Peng <flyingpenghao@...il.com>
To: pbonzini@...hat.com
Cc: kvm@...r.kernel.org, Sean Christopherson <seanjc@...gle.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH] KVM: use unified srcu interface function
From: Peng Hao <flyingpeng@...cent.com>
kvm->irq_routing is protected by kvm->irq_srcu.
Signed-off-by: Peng Hao <flyingpeng@...cent.com>
---
virt/kvm/irqchip.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/virt/kvm/irqchip.c b/virt/kvm/irqchip.c
index 1e567d1f6d3d..90f54f04e37c 100644
--- a/virt/kvm/irqchip.c
+++ b/virt/kvm/irqchip.c
@@ -216,7 +216,8 @@ int kvm_set_irq_routing(struct kvm *kvm,
}
mutex_lock(&kvm->irq_lock);
- old = rcu_dereference_protected(kvm->irq_routing, 1);
+ old = srcu_dereference_check(kvm->irq_routing, &kvm->irq_srcu,
+ lockdep_is_held(&kvm->irq_lock));
rcu_assign_pointer(kvm->irq_routing, new);
kvm_irq_routing_update(kvm);
kvm_arch_irq_routing_update(kvm);
--
2.27.0
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