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| author | David Hildenbrand <david@redhat.com> | 2017-04-07 10:50:29 +0200 |
|---|---|---|
| committer | Radim Krčmář <rkrcmar@redhat.com> | 2017-04-12 20:17:14 +0200 |
| commit | 49f520b99af13d8cafec6f227dabf6acf236c887 (patch) | |
| tree | 77f3f236c2515ba918acca6001f30e6f64366fc6 | |
| parent | ba7454e17f90a7dfecc3eb82ec19eb7ac5b6f0e0 (diff) | |
| download | op-kernel-dev-49f520b99af13d8cafec6f227dabf6acf236c887.zip op-kernel-dev-49f520b99af13d8cafec6f227dabf6acf236c887.tar.gz | |
KVM: x86: push usage of slots_lock down
Let's just move it to the place where it is actually needed.
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
| -rw-r--r-- | arch/x86/kvm/i8259.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/ioapic.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 4 |
3 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c index af97c5a..2da2b42 100644 --- a/arch/x86/kvm/i8259.c +++ b/arch/x86/kvm/i8259.c @@ -660,9 +660,11 @@ void kvm_pic_destroy(struct kvm *kvm) if (!vpic) return; + mutex_lock(&kvm->slots_lock); kvm_io_bus_unregister_dev(vpic->kvm, KVM_PIO_BUS, &vpic->dev_master); kvm_io_bus_unregister_dev(vpic->kvm, KVM_PIO_BUS, &vpic->dev_slave); kvm_io_bus_unregister_dev(vpic->kvm, KVM_PIO_BUS, &vpic->dev_eclr); + mutex_unlock(&kvm->slots_lock); kvm->arch.vpic = NULL; kfree(vpic); diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c index 10941a6..6e1d8cb 100644 --- a/arch/x86/kvm/ioapic.c +++ b/arch/x86/kvm/ioapic.c @@ -637,7 +637,9 @@ void kvm_ioapic_destroy(struct kvm *kvm) return; cancel_delayed_work_sync(&ioapic->eoi_inject); + mutex_lock(&kvm->slots_lock); kvm_io_bus_unregister_dev(kvm, KVM_MMIO_BUS, &ioapic->dev); + mutex_unlock(&kvm->slots_lock); kvm->arch.vioapic = NULL; kfree(ioapic); } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 182fea2..3046b7f 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4015,9 +4015,7 @@ long kvm_arch_vm_ioctl(struct file *filp, r = kvm_ioapic_init(kvm); if (r) { - mutex_lock(&kvm->slots_lock); kvm_pic_destroy(kvm); - mutex_unlock(&kvm->slots_lock); goto create_irqchip_unlock; } @@ -4027,10 +4025,8 @@ long kvm_arch_vm_ioctl(struct file *filp, kvm->arch.irqchip_mode = KVM_IRQCHIP_NONE; /* Pairs with smp_rmb() when reading irqchip_mode */ smp_wmb(); - mutex_lock(&kvm->slots_lock); kvm_ioapic_destroy(kvm); kvm_pic_destroy(kvm); - mutex_unlock(&kvm->slots_lock); goto create_irqchip_unlock; } /* Write kvm->irq_routing before enabling irqchip_in_kernel. */ |
