diff mbox series

KVM: x86: remove duplicated KVM_REQ_EVENT request

Message ID 1580953544-4778-1-git-send-email-linmiaohe@huawei.com (mailing list archive)
State New, archived
Headers show
Series KVM: x86: remove duplicated KVM_REQ_EVENT request | expand

Commit Message

Miaohe Lin Feb. 6, 2020, 1:45 a.m. UTC
From: Miaohe Lin <linmiaohe@huawei.com>

The KVM_REQ_EVENT request is already made in kvm_set_rflags(). We should
not make it again.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
 arch/x86/kvm/x86.c | 1 -
 1 file changed, 1 deletion(-)

Comments

Vitaly Kuznetsov Feb. 6, 2020, 10:41 a.m. UTC | #1
linmiaohe <linmiaohe@huawei.com> writes:

> From: Miaohe Lin <linmiaohe@huawei.com>
>
> The KVM_REQ_EVENT request is already made in kvm_set_rflags(). We should
> not make it again.
>
> Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
> ---
>  arch/x86/kvm/x86.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index fbabb2f06273..212282c6fb76 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -8942,7 +8942,6 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index,
>  
>  	kvm_rip_write(vcpu, ctxt->eip);
>  	kvm_set_rflags(vcpu, ctxt->eflags);
> -	kvm_make_request(KVM_REQ_EVENT, vcpu);

I would've actually done it the other way around and removed
kvm_make_request() from kvm_set_rflags() as it is not an obvious
behavior (e.g. why kvm_rip_write() doens't do that and kvm_set_rflags()
does ?) adding kvm_make_request() to all call sites.

In case this looks like too big of a change with no particular gain I'd
suggest you at least leave a comment above kvm_set_rflags(), something
like

"kvm_make_request() also requests KVM_REQ_EVENT"

>  	return 1;
>  }
>  EXPORT_SYMBOL_GPL(kvm_task_switch);
diff mbox series

Patch

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index fbabb2f06273..212282c6fb76 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -8942,7 +8942,6 @@  int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index,
 
 	kvm_rip_write(vcpu, ctxt->eip);
 	kvm_set_rflags(vcpu, ctxt->eflags);
-	kvm_make_request(KVM_REQ_EVENT, vcpu);
 	return 1;
 }
 EXPORT_SYMBOL_GPL(kvm_task_switch);