KVM: set_memory_region: Refactor commit_memory_region()

This patch makes the parameter old a const pointer to the old memory
slot and adds a new parameter named change to know the change being
requested: the former is for removing extra copying and the latter is
for cleaning up the code.

Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 8f85bae862c7..0e919a1d4d56 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -896,7 +896,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 
         old_memslots = install_new_memslots(kvm, slots, &new);
 
-        kvm_arch_commit_memory_region(kvm, mem, old);
+        kvm_arch_commit_memory_region(kvm, mem, &old, change);
 
         kvm_free_physmem_slot(&old, &new);
         kfree(old_memslots);