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KVM: set_memory_region: Refactor prepare_memory_region()

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This patch drops the parameter old, a copy of the old memory slot, and
adds a new parameter named change to know the change being requested.

This not only cleans up the code but also removes extra copying of the
memory slot structure.

Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Takuya Yoshikawa 2013-02-27 19:44:34 +09:00 • committed by Marcelo Tosatti
parent 74d0727cb7
commit 7b6195a91d
7 changed files with 15 additions and 17 deletions
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4
include/linux/kvm_host.h
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@ -479,8 +479,8 @@ void kvm_arch_free_memslot(struct kvm_memory_slot *free,
int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages);
int kvm_arch_prepare_memory_region(struct kvm *kvm,
struct kvm_memory_slot *memslot,
struct kvm_memory_slot old,
struct kvm_userspace_memory_region *mem);
struct kvm_userspace_memory_region *mem,
enum kvm_mr_change change);
void kvm_arch_commit_memory_region(struct kvm *kvm,
struct kvm_userspace_memory_region *mem,
struct kvm_memory_slot old);