[PATCH] KVM: Remove kvm_make_all_cpus_request_except

[PATCH] KVM: Remove kvm_make_all_cpus_request_except

[Venkatesh Srinivas]

except argument was not used.

Signed-off-by: Venkatesh Srinivas <venkateshs@chromium.org>
---
 include/linux/kvm_host.h |  2 --
 virt/kvm/kvm_main.c      | 10 +---------
 2 files changed, 1 insertion(+), 11 deletions(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 9807ea98b568..5483a6af82a5 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -193,8 +193,6 @@ static inline bool is_error_page(struct page *page)
 bool kvm_make_vcpus_request_mask(struct kvm *kvm, unsigned int req,
 				 unsigned long *vcpu_bitmap);
 bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req);
-bool kvm_make_all_cpus_request_except(struct kvm *kvm, unsigned int req,
-				      struct kvm_vcpu *except);
 
 #define KVM_USERSPACE_IRQ_SOURCE_ID		0
 #define KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID	1
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d1fd9cb5d037..53351febb813 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -311,8 +311,7 @@ bool kvm_make_vcpus_request_mask(struct kvm *kvm, unsigned int req,
 	return called;
 }
 
-bool kvm_make_all_cpus_request_except(struct kvm *kvm, unsigned int req,
-				      struct kvm_vcpu *except)
+bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req)
 {
 	struct kvm_vcpu *vcpu;
 	struct cpumask *cpus;
@@ -326,8 +325,6 @@ bool kvm_make_all_cpus_request_except(struct kvm *kvm, unsigned int req,
 	cpumask_clear(cpus);
 
 	kvm_for_each_vcpu(i, vcpu, kvm) {
-		if (vcpu == except)
-			continue;
 		kvm_make_vcpu_request(vcpu, req, cpus, me);
 	}
 
@@ -336,11 +333,6 @@ bool kvm_make_all_cpus_request_except(struct kvm *kvm, unsigned int req,
 
 	return called;
 }
-
-bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req)
-{
-	return kvm_make_all_cpus_request_except(kvm, req, NULL);
-}
 EXPORT_SYMBOL_GPL(kvm_make_all_cpus_request);
 
 void kvm_flush_remote_tlbs(struct kvm *kvm)
-- 
2.44.0.478.gd926399ef9-goog

Re: [PATCH] KVM: Remove kvm_make_all_cpus_request_except

[Sean Christopherson]

On Thu, Apr 04, 2024, Venkatesh Srinivas wrote:
> except argument was not used.

Please write changelogs with a bit more verbosity.  This one is easy enough to
fixup when applying, but for the future...

> Signed-off-by: Venkatesh Srinivas <venkateshs@chromium.org>
> ---
>  include/linux/kvm_host.h |  2 --
>  virt/kvm/kvm_main.c      | 10 +---------
>  2 files changed, 1 insertion(+), 11 deletions(-)
> 
> diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
> index 9807ea98b568..5483a6af82a5 100644
> --- a/include/linux/kvm_host.h
> +++ b/include/linux/kvm_host.h
> @@ -193,8 +193,6 @@ static inline bool is_error_page(struct page *page)
>  bool kvm_make_vcpus_request_mask(struct kvm *kvm, unsigned int req,
>  				 unsigned long *vcpu_bitmap);
>  bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req);
> -bool kvm_make_all_cpus_request_except(struct kvm *kvm, unsigned int req,
> -				      struct kvm_vcpu *except);
>  
>  #define KVM_USERSPACE_IRQ_SOURCE_ID		0
>  #define KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID	1
> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> index d1fd9cb5d037..53351febb813 100644
> --- a/virt/kvm/kvm_main.c
> +++ b/virt/kvm/kvm_main.c
> @@ -311,8 +311,7 @@ bool kvm_make_vcpus_request_mask(struct kvm *kvm, unsigned int req,
>  	return called;
>  }
>  
> -bool kvm_make_all_cpus_request_except(struct kvm *kvm, unsigned int req,
> -				      struct kvm_vcpu *except)
> +bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req)
>  {
>  	struct kvm_vcpu *vcpu;
>  	struct cpumask *cpus;
> @@ -326,8 +325,6 @@ bool kvm_make_all_cpus_request_except(struct kvm *kvm, unsigned int req,
>  	cpumask_clear(cpus);
>  
>  	kvm_for_each_vcpu(i, vcpu, kvm) {

Nit, curly braces are no longer necessary (also can fixup when applying).

> -		if (vcpu == except)
> -			continue;
>  		kvm_make_vcpu_request(vcpu, req, cpus, me);
>  	}
>  
> @@ -336,11 +333,6 @@ bool kvm_make_all_cpus_request_except(struct kvm *kvm, unsigned int req,
>  
>  	return called;
>  }
> -
> -bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req)
> -{
> -	return kvm_make_all_cpus_request_except(kvm, req, NULL);
> -}
>  EXPORT_SYMBOL_GPL(kvm_make_all_cpus_request);
>  
>  void kvm_flush_remote_tlbs(struct kvm *kvm)
> -- 
> 2.44.0.478.gd926399ef9-goog
> 

Re: [PATCH] KVM: Remove kvm_make_all_cpus_request_except

[Sean Christopherson]

On Thu, 04 Apr 2024 23:26:51 +0000, Venkatesh Srinivas wrote:
> except argument was not used.

Applied to kvm-x86 generic, with a much more verbose change.  Thanks!

[1/1] KVM: Remove kvm_make_all_cpus_request_except
      https://github.com/kvm-x86/linux/commit/82e9c84d8712

--
https://github.com/kvm-x86/linux/tree/next