KVM: remove __gfn_to_pfn

Most of the function that wrap it can be rewritten without it, except
for gfn_to_pfn_prot.  Just inline it into gfn_to_pfn_prot, and rewrite
the other function on top of gfn_to_pfn_memslot*.

Reviewed-by: Radim Krcmar <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 15 insertions, 24 deletions

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index c57f44216a4e..53e66ef8b75e 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1387,33 +1387,11 @@ pfn_t __gfn_to_pfn_memslot(struct kvm_memory_slot *slot, gfn_t gfn, bool atomic,
 }
 EXPORT_SYMBOL_GPL(__gfn_to_pfn_memslot);
 
-static pfn_t __gfn_to_pfn(struct kvm *kvm, gfn_t gfn, bool atomic,
-                          bool write_fault, bool *writable)
-{
-        struct kvm_memory_slot *slot;
-
-        slot = gfn_to_memslot(kvm, gfn);
-
-        return __gfn_to_pfn_memslot(slot, gfn, atomic, NULL, write_fault,
-                                    writable);
-}
-
-pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn)
-{
-        return __gfn_to_pfn(kvm, gfn, true, true, NULL);
-}
-EXPORT_SYMBOL_GPL(gfn_to_pfn_atomic);
-
-pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn)
-{
-        return __gfn_to_pfn(kvm, gfn, false, true, NULL);
-}
-EXPORT_SYMBOL_GPL(gfn_to_pfn);
-
 pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault,
                       bool *writable)
 {
-        return __gfn_to_pfn(kvm, gfn, false, write_fault, writable);
+        return __gfn_to_pfn_memslot(gfn_to_memslot(kvm, gfn), gfn, false, NULL,
+                                    write_fault, writable);
 }
 EXPORT_SYMBOL_GPL(gfn_to_pfn_prot);
 
@@ -1421,6 +1399,7 @@ pfn_t gfn_to_pfn_memslot(struct kvm_memory_slot *slot, gfn_t gfn)
 {
         return __gfn_to_pfn_memslot(slot, gfn, false, NULL, true, NULL);
 }
+EXPORT_SYMBOL_GPL(gfn_to_pfn_memslot);
 
 pfn_t gfn_to_pfn_memslot_atomic(struct kvm_memory_slot *slot, gfn_t gfn)
 {
@@ -1428,6 +1407,18 @@ pfn_t gfn_to_pfn_memslot_atomic(struct kvm_memory_slot *slot, gfn_t gfn)
 }
 EXPORT_SYMBOL_GPL(gfn_to_pfn_memslot_atomic);
 
+pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn)
+{
+        return gfn_to_pfn_memslot_atomic(gfn_to_memslot(kvm, gfn), gfn);
+}
+EXPORT_SYMBOL_GPL(gfn_to_pfn_atomic);
+
+pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn)
+{
+        return gfn_to_pfn_memslot(gfn_to_memslot(kvm, gfn), gfn);
+}
+EXPORT_SYMBOL_GPL(gfn_to_pfn);
+
 int gfn_to_page_many_atomic(struct kvm_memory_slot *slot, gfn_t gfn,
                             struct page **pages, int nr_pages)
 {