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 5a936988eb24..24cb5f66787d 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 ad3126a58644..cbc5b0417dab 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 934413cd3a1b..22b33159fbc4 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 4cf35a0a79e7..07ac302ce246 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 811c5c9c8880..26216bb4403f 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;