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 1556979c1728856d71cf1d771c48ee99210c14cd
Author: Andrey Smetanin <asmeta...@virtuozzo.com>
Date: Tue Feb 16 13:50:13 2016 +0400
ms/kvm/eventfd: factor out kvm_notify_acked_gsi()
Factor out kvm_notify_acked_gsi() helper to iterate over EOI listeners
and notify those matching the given gsi.
It will be reused in the upcoming Hyper-V SynIC implementation.
ms commit ba1aefcd6db5536d3eb3ca3ce7bd6786960140ea.
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: Vitaly Kuznetsov <vkuzn...@redhat.com>
CC: "K. Y. Srinivasan" <k...@microsoft.com>
CC: Gleb Natapov <g...@kernel.org>
CC: Paolo Bonzini <pbonz...@redhat.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
include/linux/kvm_host.h | 1 +
virt/kvm/eventfd.c | 16 +++++++++++-----
2 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 3b05609..4added7 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -767,6 +767,7 @@ int kvm_set_irq_inatomic(struct kvm *kvm, int
irq_source_id, u32 irq, int level)
int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm
*kvm,
int irq_source_id, int level, bool line_status);
bool kvm_irq_has_notifier(struct kvm *kvm, unsigned irqchip, unsigned pin);
+void kvm_notify_acked_gsi(struct kvm *kvm, int gsi);
void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
void kvm_register_irq_ack_notifier(struct kvm *kvm,
struct kvm_irq_ack_notifier *kian);
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index f3a34f0..b5cf82d 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -463,9 +463,18 @@ bool kvm_irq_has_notifier(struct kvm *kvm, unsigned
irqchip, unsigned pin)
}
EXPORT_SYMBOL_GPL(kvm_irq_has_notifier);
-void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin)
+void kvm_notify_acked_gsi(struct kvm *kvm, int gsi)
{
struct kvm_irq_ack_notifier *kian;
+
+ hlist_for_each_entry_rcu(kian, &kvm->irq_ack_notifier_list,
+ link)
+ if (kian->gsi == gsi)
+ kian->irq_acked(kian);
+}
+
+void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin)
+{
int gsi, idx;
trace_kvm_ack_irq(irqchip, pin);
@@ -473,10 +482,7 @@ void kvm_notify_acked_irq(struct kvm *kvm, unsigned
irqchip, unsigned pin)
idx = srcu_read_lock(&kvm->irq_srcu);
gsi = kvm_irq_map_chip_pin(kvm, irqchip, pin);
if (gsi != -1)
- hlist_for_each_entry_rcu(kian, &kvm->irq_ack_notifier_list,
- link)
- if (kian->gsi == gsi)
- kian->irq_acked(kian);
+ kvm_notify_acked_gsi(kvm, gsi);
srcu_read_unlock(&kvm->irq_srcu, idx);
}
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