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KVM: convert io_bus to SRCU

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Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Marcelo Tosatti
2009-12-23 14:35:24 -02:00
parent a983fb2387
commit e93f8a0f82
9 changed files with 101 additions and 75 deletions
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virt/kvm/eventfd.c
+4 -4
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@@ -463,7 +463,7 @@ static int
kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
{
int pio = args->flags & KVM_IOEVENTFD_FLAG_PIO;
struct kvm_io_bus *bus = pio ? &kvm->pio_bus : &kvm->mmio_bus;
enum kvm_bus bus_idx = pio ? KVM_PIO_BUS : KVM_MMIO_BUS;
struct _ioeventfd *p;
struct eventfd_ctx *eventfd;
int ret;
@@ -518,7 +518,7 @@ kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
kvm_iodevice_init(&p->dev, &ioeventfd_ops);
ret = __kvm_io_bus_register_dev(bus, &p->dev);
ret = kvm_io_bus_register_dev(kvm, bus_idx, &p->dev);
if (ret < 0)
goto unlock_fail;
@@ -542,7 +542,7 @@ static int
kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
{
int pio = args->flags & KVM_IOEVENTFD_FLAG_PIO;
struct kvm_io_bus *bus = pio ? &kvm->pio_bus : &kvm->mmio_bus;
enum kvm_bus bus_idx = pio ? KVM_PIO_BUS : KVM_MMIO_BUS;
struct _ioeventfd *p, *tmp;
struct eventfd_ctx *eventfd;
int ret = -ENOENT;
@@ -565,7 +565,7 @@ kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
if (!p->wildcard && p->datamatch != args->datamatch)
continue;
__kvm_io_bus_unregister_dev(bus, &p->dev);
kvm_io_bus_unregister_dev(kvm, bus_idx, &p->dev);
ioeventfd_release(p);
ret = 0;
break;