Commit 77a1a715 authored by Wei Yongjun's avatar Wei Yongjun Committed by Avi Kivity
Browse files

KVM: MMU: cleanup for function unaccount_shadowed() 



Since gfn is not changed in the for loop, we do not need to call
gfn_to_memslot_unaliased() under the loop, and it is safe to move
it out.

Signed-off-by: default avatarWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 2a059bf4

arch/x86/kvm/mmu.c

+1 −1
Original line number Diff line number Diff line
@@ -431,9 +431,9 @@ static void unaccount_shadowed(struct kvm *kvm, gfn_t gfn) 
	int i;



	gfn = unalias_gfn(kvm, gfn);

	slot = gfn_to_memslot_unaliased(kvm, gfn);

	for (i = PT_DIRECTORY_LEVEL;

	     i < PT_PAGE_TABLE_LEVEL + KVM_NR_PAGE_SIZES; ++i) {

		slot          = gfn_to_memslot_unaliased(kvm, gfn);

		write_count   = slot_largepage_idx(gfn, slot, i);

		*write_count -= 1;

		WARN_ON(*write_count < 0);