KVM: set_memory_region: Drop user_alloc from prepare/commit_memory_region()

X86 does not use this any more.  The remaining user, s390's !user_alloc
check, can be simply removed since KVM_SET_MEMORY_REGION ioctl is no
longer supported.

Note: fixed powerpc's indentations with spaces to suppress checkpatch
errors.

Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

5 files changed, 13 insertions, 26 deletions

diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 5a93698..24cb5f6 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -231,16 +231,14 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
 int kvm_arch_prepare_memory_region(struct kvm *kvm,
 				   struct kvm_memory_slot *memslot,
 				   struct kvm_memory_slot old,
-				   struct kvm_userspace_memory_region *mem,
-				   bool user_alloc)
+				   struct kvm_userspace_memory_region *mem)
 {
 	return 0;
 }
 
 void kvm_arch_commit_memory_region(struct kvm *kvm,
 				   struct kvm_userspace_memory_region *mem,
-				   struct kvm_memory_slot old,
-				   bool user_alloc)
+				   struct kvm_memory_slot old)
 {
 }
 
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index ad3126a..cbc5b04 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1579,8 +1579,7 @@ int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
 int kvm_arch_prepare_memory_region(struct kvm *kvm,
 		struct kvm_memory_slot *memslot,
 		struct kvm_memory_slot old,
-		struct kvm_userspace_memory_region *mem,
-		bool user_alloc)
+		struct kvm_userspace_memory_region *mem)
 {
 	unsigned long i;
 	unsigned long pfn;
@@ -1610,8 +1609,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
 
 void kvm_arch_commit_memory_region(struct kvm *kvm,
 		struct kvm_userspace_memory_region *mem,
-		struct kvm_memory_slot old,
-		bool user_alloc)
+		struct kvm_memory_slot old)
 {
 	return;
 }
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 934413c..22b3315 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -411,18 +411,16 @@ int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
 }
 
 int kvm_arch_prepare_memory_region(struct kvm *kvm,
-                                   struct kvm_memory_slot *memslot,
-                                   struct kvm_memory_slot old,
-                                   struct kvm_userspace_memory_region *mem,
-                                   bool user_alloc)
+				   struct kvm_memory_slot *memslot,
+				   struct kvm_memory_slot old,
+				   struct kvm_userspace_memory_region *mem)
 {
 	return kvmppc_core_prepare_memory_region(kvm, memslot, mem);
 }
 
 void kvm_arch_commit_memory_region(struct kvm *kvm,
-               struct kvm_userspace_memory_region *mem,
-               struct kvm_memory_slot old,
-               bool user_alloc)
+				   struct kvm_userspace_memory_region *mem,
+				   struct kvm_memory_slot old)
 {
 	kvmppc_core_commit_memory_region(kvm, mem, old);
 }
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 4cf35a0..07ac302 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -975,8 +975,7 @@ int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
 int kvm_arch_prepare_memory_region(struct kvm *kvm,
 				   struct kvm_memory_slot *memslot,
 				   struct kvm_memory_slot old,
-				   struct kvm_userspace_memory_region *mem,
-				   bool user_alloc)
+				   struct kvm_userspace_memory_region *mem)
 {
 	/* A few sanity checks. We can have exactly one memory slot which has
 	   to start at guest virtual zero and which has to be located at a
@@ -997,16 +996,12 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
 	if (mem->memory_size & 0xffffful)
 		return -EINVAL;
 
-	if (!user_alloc)
-		return -EINVAL;
-
 	return 0;
 }
 
 void kvm_arch_commit_memory_region(struct kvm *kvm,
 				struct kvm_userspace_memory_region *mem,
-				struct kvm_memory_slot old,
-				bool user_alloc)
+				struct kvm_memory_slot old)
 {
 	int rc;
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 811c5c9..26216bb 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6907,8 +6907,7 @@ out_free:
 int kvm_arch_prepare_memory_region(struct kvm *kvm,
 				struct kvm_memory_slot *memslot,
 				struct kvm_memory_slot old,
-				struct kvm_userspace_memory_region *mem,
-				bool user_alloc)
+				struct kvm_userspace_memory_region *mem)
 {
 	int npages = memslot->npages;
 
@@ -6938,8 +6937,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
 
 void kvm_arch_commit_memory_region(struct kvm *kvm,
 				struct kvm_userspace_memory_region *mem,
-				struct kvm_memory_slot old,
-				bool user_alloc)
+				struct kvm_memory_slot old)
 {
 
 	int nr_mmu_pages = 0, npages = mem->memory_size >> PAGE_SHIFT;