linux-kernel - [PATCH 1/4] KVM: remove unused __KVM_HAVE_ARCH_VM

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Date:   Thu, 13 Apr 2017 22:19:48 +0200
From:   Radim Krčmář <rkrcmar@...hat.com>
To:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:     Christoffer Dall <cdall@...aro.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Cornelia Huck <cornelia.huck@...ibm.com>,
        James Hogan <james.hogan@...tec.com>,
        Paul Mackerras <paulus@...abs.org>,
        Alexander Graf <agraf@...e.com>
Subject: [PATCH 1/4] KVM: remove unused __KVM_HAVE_ARCH_VM_ALLOC

Moving it to generic code will allow us to extend it with ease.

Signed-off-by: Radim Krčmář <rkrcmar@...hat.com>
---
 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);
-- 
2.12.0