[Devel] [PATCH RHEL7 COMMIT] ms/kvm/irqchip: kvm_arch_irq_routing_update renaming split

[Konstantin Khorenko]

The commit is pushed to "branch-rh7-3.10.0-327.4.5.vz7.11.x-ovz" and will 
appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-327.4.5.vz7.11.2
------>
commit 3b3f80db9379d6eabd7f0923dffc2f4cb394276e
Author: Andrey Smetanin <asmeta...@virtuozzo.com>
Date:   Tue Feb 16 13:50:16 2016 +0400

    ms/kvm/irqchip: kvm_arch_irq_routing_update renaming split
    
    Actually kvm_arch_irq_routing_update() should be
    kvm_arch_post_irq_routing_update() as it's called at the end
    of irq routing update.
    
    This renaming frees kvm_arch_irq_routing_update function name.
    kvm_arch_irq_routing_update() weak function which will be used
    to update mappings for arch-specific irq routing entries
    (in particular, the upcoming Hyper-V synthetic interrupts).
    
    ms commit abdb080f7ac8a85547f5e0246362790043bbd3f2.
    
    Signed-off-by: Andrey Smetanin <asmeta...@virtuozzo.com>
    
    Reviewed-by: Roman Kagan <rka...@virtuozzo.com>
    Signed-off-by: Denis V. Lunev <d...@openvz.org>
    CC: Gleb Natapov <g...@kernel.org>
    CC: Paolo Bonzini <pbonz...@redhat.com>
    CC: Roman Kagan <rka...@virtuozzo.com>
    CC: Denis V. Lunev <d...@openvz.org>
    CC: qemu-de...@nongnu.org
    Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
 include/linux/kvm_host.h |  2 ++
 virt/kvm/irqchip.c       | 11 +++++++++++
 2 files changed, 13 insertions(+)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 79b9aba..837e64b 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -997,6 +997,8 @@ static inline void kvm_irq_routing_update(struct kvm *kvm)
 {
 }
 #endif
+void kvm_arch_irq_routing_update(struct kvm *kvm);
+void kvm_arch_post_irq_routing_update(struct kvm *kvm);
 
 static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
 {
diff --git a/virt/kvm/irqchip.c b/virt/kvm/irqchip.c
index d6c2145..38e6a64 100644
--- a/virt/kvm/irqchip.c
+++ b/virt/kvm/irqchip.c
@@ -156,6 +156,14 @@ out:
        return r;
 }
 
+void __attribute__((weak)) kvm_arch_irq_routing_update(struct kvm *kvm)
+{
+}
+
+void __attribute__((weak)) kvm_arch_post_irq_routing_update(struct kvm *kvm)
+{
+}
+
 int kvm_set_irq_routing(struct kvm *kvm,
                        const struct kvm_irq_routing_entry *ue,
                        unsigned nr,
@@ -201,8 +209,11 @@ int kvm_set_irq_routing(struct kvm *kvm,
        old = kvm->irq_routing;
        rcu_assign_pointer(kvm->irq_routing, new);
        kvm_irq_routing_update(kvm);
+       kvm_arch_irq_routing_update(kvm);
        mutex_unlock(&kvm->irq_lock);
 
+       kvm_arch_post_irq_routing_update(kvm);
+
        synchronize_srcu_expedited(&kvm->irq_srcu);
 
        new = old;
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