KVM: x86/mmu: Rename handle_removed_tdp_mmu_page() to handle_removed_pt()

First remove tdp_mmu_ from the name since it is redundant given that it
is a static function in tdp_mmu.c. There is a pattern of using tdp_mmu_
as a prefix in the names of static TDP MMU functions, but all of the
other handle_*() variants do not include such a prefix. So drop it
entirely.

Then change "page" to "pt" to convey that this is operating on a page
table rather than an struct page. Purposely use "pt" instead of "sp"
since this function takes the raw RCU-protected page table pointer as an
argument rather than  a pointer to the struct kvm_mmu_page.

No functional change intended.
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20220119230739.2234394-7-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/mmu/tdp_mmu.c

@@ -312,7 +312,7 @@ static void tdp_mmu_unlink_sp(struct kvm *kvm, struct kvm_mmu_page *sp,
 }
 
 /**
- * handle_removed_tdp_mmu_page - handle a pt removed from the TDP structure
+ * handle_removed_pt() - handle a page table removed from the TDP structure
  *
  * @kvm: kvm instance
  * @pt: the page removed from the paging structure
@@ -328,8 +328,7 @@ static void tdp_mmu_unlink_sp(struct kvm *kvm, struct kvm_mmu_page *sp,
  * this thread will be responsible for ensuring the page is freed. Hence the
  * early rcu_dereferences in the function.
  */
-static void handle_removed_tdp_mmu_page(struct kvm *kvm, tdp_ptep_t pt,
-					bool shared)
+static void handle_removed_pt(struct kvm *kvm, tdp_ptep_t pt, bool shared)
 {
 	struct kvm_mmu_page *sp = sptep_to_sp(rcu_dereference(pt));
 	int level = sp->role.level;
@@ -492,8 +491,7 @@ static void __handle_changed_spte(struct kvm *kvm, int as_id, gfn_t gfn,
 	 * the paging structure.
 	 */
 	if (was_present && !was_leaf && (pfn_changed || !is_present))
-		handle_removed_tdp_mmu_page(kvm,
-				spte_to_child_pt(old_spte, level), shared);
+		handle_removed_pt(kvm, spte_to_child_pt(old_spte, level), shared);
 }
 
 static void handle_changed_spte(struct kvm *kvm, int as_id, gfn_t gfn,