* [PATCH] kvm: Remove the unused macro KVM_MMU_READ_LOCK()
@ 2022-12-07 12:06 Lai Jiangshan
2022-12-09 7:58 ` Paolo Bonzini
0 siblings, 1 reply; 2+ messages in thread
From: Lai Jiangshan @ 2022-12-07 12:06 UTC (permalink / raw)
To: linux-kernel; +Cc: Sean Christopherson, Lai Jiangshan, Paolo Bonzini, kvm
From: Lai Jiangshan <jiangshan.ljs@antgroup.com>
No code is using KVM_MMU_READ_LOCK().
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
---
virt/kvm/kvm_mm.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/virt/kvm/kvm_mm.h b/virt/kvm/kvm_mm.h
index a1ab15006af3..e98e294080bf 100644
--- a/virt/kvm/kvm_mm.h
+++ b/virt/kvm/kvm_mm.h
@@ -14,13 +14,11 @@
#define KVM_MMU_LOCK_INIT(kvm) rwlock_init(&(kvm)->mmu_lock)
#define KVM_MMU_LOCK(kvm) write_lock(&(kvm)->mmu_lock)
#define KVM_MMU_UNLOCK(kvm) write_unlock(&(kvm)->mmu_lock)
-#define KVM_MMU_READ_LOCK(kvm) read_lock(&(kvm)->mmu_lock)
#define KVM_MMU_READ_UNLOCK(kvm) read_unlock(&(kvm)->mmu_lock)
#else
#define KVM_MMU_LOCK_INIT(kvm) spin_lock_init(&(kvm)->mmu_lock)
#define KVM_MMU_LOCK(kvm) spin_lock(&(kvm)->mmu_lock)
#define KVM_MMU_UNLOCK(kvm) spin_unlock(&(kvm)->mmu_lock)
-#define KVM_MMU_READ_LOCK(kvm) spin_lock(&(kvm)->mmu_lock)
#define KVM_MMU_READ_UNLOCK(kvm) spin_unlock(&(kvm)->mmu_lock)
#endif /* KVM_HAVE_MMU_RWLOCK */
--
2.19.1.6.gb485710b
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] kvm: Remove the unused macro KVM_MMU_READ_LOCK()
2022-12-07 12:06 [PATCH] kvm: Remove the unused macro KVM_MMU_READ_LOCK() Lai Jiangshan
@ 2022-12-09 7:58 ` Paolo Bonzini
0 siblings, 0 replies; 2+ messages in thread
From: Paolo Bonzini @ 2022-12-09 7:58 UTC (permalink / raw)
To: Lai Jiangshan, linux-kernel; +Cc: Sean Christopherson, Lai Jiangshan, kvm
On 12/7/22 13:06, Lai Jiangshan wrote:
> From: Lai Jiangshan <jiangshan.ljs@antgroup.com>
>
> No code is using KVM_MMU_READ_LOCK().
And KVM_MMU_READ_UNLOCK() is also unused.
Paolo
> Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
> ---
> virt/kvm/kvm_mm.h | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/virt/kvm/kvm_mm.h b/virt/kvm/kvm_mm.h
> index a1ab15006af3..e98e294080bf 100644
> --- a/virt/kvm/kvm_mm.h
> +++ b/virt/kvm/kvm_mm.h
> @@ -14,13 +14,11 @@
> #define KVM_MMU_LOCK_INIT(kvm) rwlock_init(&(kvm)->mmu_lock)
> #define KVM_MMU_LOCK(kvm) write_lock(&(kvm)->mmu_lock)
> #define KVM_MMU_UNLOCK(kvm) write_unlock(&(kvm)->mmu_lock)
> -#define KVM_MMU_READ_LOCK(kvm) read_lock(&(kvm)->mmu_lock)
> #define KVM_MMU_READ_UNLOCK(kvm) read_unlock(&(kvm)->mmu_lock)
> #else
> #define KVM_MMU_LOCK_INIT(kvm) spin_lock_init(&(kvm)->mmu_lock)
> #define KVM_MMU_LOCK(kvm) spin_lock(&(kvm)->mmu_lock)
> #define KVM_MMU_UNLOCK(kvm) spin_unlock(&(kvm)->mmu_lock)
> -#define KVM_MMU_READ_LOCK(kvm) spin_lock(&(kvm)->mmu_lock)
> #define KVM_MMU_READ_UNLOCK(kvm) spin_unlock(&(kvm)->mmu_lock)
> #endif /* KVM_HAVE_MMU_RWLOCK */
>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2022-12-09 7:59 UTC | newest]
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2022-12-07 12:06 [PATCH] kvm: Remove the unused macro KVM_MMU_READ_LOCK() Lai Jiangshan
2022-12-09 7:58 ` Paolo Bonzini
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