linux-kernel - [PATCH V2] kvm: Remove the unused macro KVM_MMU_READ

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Date:   Mon, 12 Dec 2022 16:35:32 +0800
From:   Lai Jiangshan <jiangshanlai@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Sean Christopherson <seanjc@...gle.com>,
        Lai Jiangshan <jiangshan.ljs@...group.com>,
        Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org
Subject: [PATCH V2] kvm: Remove the unused macro KVM_MMU_READ_[UN]LOCK()

From: Lai Jiangshan <jiangshan.ljs@...group.com>

No code is using KVM_MMU_READ_[UN]LOCK().

Signed-off-by: Lai Jiangshan <jiangshan.ljs@...group.com>
---
 virt/kvm/kvm_mm.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/virt/kvm/kvm_mm.h b/virt/kvm/kvm_mm.h
index a1ab15006af3..180f1a09e6ba 100644
--- a/virt/kvm/kvm_mm.h
+++ b/virt/kvm/kvm_mm.h
@@ -14,14 +14,10 @@
 #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 */
 
 kvm_pfn_t hva_to_pfn(unsigned long addr, bool atomic, bool interruptible,
-- 
2.19.1.6.gb485710b