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23 lines
751 B
23 lines
751 B
// SPDX-License-Identifier: GPL-2.0-only |
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#ifndef KVM_MMU_LOCK_H |
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#define KVM_MMU_LOCK_H 1 |
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/* |
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* Architectures can choose whether to use an rwlock or spinlock |
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* for the mmu_lock. These macros, for use in common code |
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* only, avoids using #ifdefs in places that must deal with |
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* multiple architectures. |
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*/ |
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#ifdef KVM_HAVE_MMU_RWLOCK |
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#define KVM_MMU_LOCK_INIT(kvm) rwlock_init(&(kvm)->mmu_lock) |
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#define KVM_MMU_LOCK(kvm) write_lock(&(kvm)->mmu_lock) |
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#define KVM_MMU_UNLOCK(kvm) write_unlock(&(kvm)->mmu_lock) |
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#else |
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#define KVM_MMU_LOCK_INIT(kvm) spin_lock_init(&(kvm)->mmu_lock) |
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#define KVM_MMU_LOCK(kvm) spin_lock(&(kvm)->mmu_lock) |
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#define KVM_MMU_UNLOCK(kvm) spin_unlock(&(kvm)->mmu_lock) |
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#endif /* KVM_HAVE_MMU_RWLOCK */ |
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#endif
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