Re: [PATCH 1/4] KVM: remove unused __KVM_HAVE_ARCH_VM_ALLOC

From: David Hildenbrand
Date: Tue Apr 18 2017 - 06:50:30 EST


On 13.04.2017 22:19, Radim KrÄmÃÅ wrote:
> Moving it to generic code will allow us to extend it with ease.
>
> Signed-off-by: Radim KrÄmÃÅ <rkrcmar@xxxxxxxxxx>
> ---
> include/linux/kvm_host.h | 12 ------------
> virt/kvm/kvm_main.c | 16 +++++++++++++---
> 2 files changed, 13 insertions(+), 15 deletions(-)
>
> diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
> index 397b7b5b1933..ae4e114cb7d1 100644
> --- a/include/linux/kvm_host.h
> +++ b/include/linux/kvm_host.h
> @@ -769,18 +769,6 @@ int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu);
>
> void *kvm_kvzalloc(unsigned long size);
>
> -#ifndef __KVM_HAVE_ARCH_VM_ALLOC
> -static inline struct kvm *kvm_arch_alloc_vm(void)
> -{
> - return kzalloc(sizeof(struct kvm), GFP_KERNEL);
> -}
> -
> -static inline void kvm_arch_free_vm(struct kvm *kvm)
> -{
> - kfree(kvm);
> -}
> -#endif
> -
> #ifdef __KVM_HAVE_ARCH_NONCOHERENT_DMA
> void kvm_arch_register_noncoherent_dma(struct kvm *kvm);
> void kvm_arch_unregister_noncoherent_dma(struct kvm *kvm);
> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> index 357e67cba32e..f03b093abffe 100644
> --- a/virt/kvm/kvm_main.c
> +++ b/virt/kvm/kvm_main.c
> @@ -604,10 +604,20 @@ static int kvm_create_vm_debugfs(struct kvm *kvm, int fd)
> return 0;
> }
>
> +static inline struct kvm *kvm_alloc_vm(void)
> +{
> + return kzalloc(sizeof(struct kvm), GFP_KERNEL);
> +}
> +
> +static inline void kvm_free_vm(struct kvm *kvm)
> +{
> + kfree(kvm);
> +}
> +
> static struct kvm *kvm_create_vm(unsigned long type)
> {
> int r, i;
> - struct kvm *kvm = kvm_arch_alloc_vm();
> + struct kvm *kvm = kvm_alloc_vm();
>
> if (!kvm)
> return ERR_PTR(-ENOMEM);
> @@ -684,7 +694,7 @@ static struct kvm *kvm_create_vm(unsigned long type)
> kfree(kvm->buses[i]);
> for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++)
> kvm_free_memslots(kvm, kvm->memslots[i]);
> - kvm_arch_free_vm(kvm);
> + kvm_free_vm(kvm);
> mmdrop(current->mm);
> return ERR_PTR(r);
> }
> @@ -744,7 +754,7 @@ static void kvm_destroy_vm(struct kvm *kvm)
> kvm_free_memslots(kvm, kvm->memslots[i]);
> cleanup_srcu_struct(&kvm->irq_srcu);
> cleanup_srcu_struct(&kvm->srcu);
> - kvm_arch_free_vm(kvm);
> + kvm_free_vm(kvm);
> preempt_notifier_dec();
> hardware_disable_all();
> mmdrop(mm);
>

Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>

--

Thanks,

David