Takuya Yoshikawa c972f3b125 KVM: Write protect the updated slot only when dirty logging is enabled ... Calling kvm_mmu_slot_remove_write_access() for a deleted slot does nothing but search for non-existent mmu pages which have mappings to that deleted memory; this is safe but a waste of time. Since we want to make the function rmap based in a later patch, in a manner which makes it unsafe to be called for a deleted slot, we makes the caller see if the slot is non-zero and being dirty logged. Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Signed-off-by: Gleb Natapov <gleb@redhat.com>		2013-01-14 11:13:15 +02:00
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kvm	KVM: Write protect the updated slot only when dirty logging is enabled	2013-01-14 11:13:15 +02:00