linux-kernel - [PATCH 7/9] KVM: remove __gfn_to

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Message-Id: <1432056313-36100-8-git-send-email-pbonzini@redhat.com>
Date:	Tue, 19 May 2015 19:25:11 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:	Takuya Yoshikawa <yoshikawa_takuya_b1@....ntt.co.jp>,
	Xiao Guangrong <guangrong.xiao@...ux.intel.com>,
	rkrcmar@...hat.com
Subject: [PATCH 7/9] 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*.

Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
---
 virt/kvm/kvm_main.c | 39 +++++++++++++++------------------------
 1 file 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)
 {
-- 
1.8.3.1


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