[PATCH] KVM: use unified srcu interface function

Hao Peng
2022-12-08T01:19:24Z

From: Peng Hao <flyingpeng@tencent.com>

kvm->irq_routing is protected by kvm->irq_srcu.

Signed-off-by: Peng Hao <flyingpeng@tencent.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