[PATCH v5 10/19] KVM: Drop "const" attribute from old memslot in commit_memory_region()

Sean Christopherson
2020-01-21T22:35:06Z

Drop the "const" attribute from @old in kvm_arch_commit_memory_region()
to allow arch specific code to free arch specific resources in the old
memslot without having to cast away the attribute. Freeing resources in
kvm_arch_commit_memory_region() paves the way for simplifying
kvm_free_memslot() by eliminating the last usage of its @dont param.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
arch/mips/kvm/mips.c | 2 +-
arch/powerpc/kvm/powerpc.c | 2 +-
arch/s390/kvm/kvm-s390.c | 2 +-
arch/x86/kvm/x86.c | 2 +-
include/linux/kvm_host.h | 2 +-
virt/kvm/arm/mmu.c | 2 +-
virt/kvm/kvm_main.c | 2 +-
7 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index 6d54e18ebdc1..908f7ec3e755 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -224,7 +224,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,

void kvm_arch_commit_memory_region(struct kvm *kvm,
const struct kvm_userspace_memory_region *mem,
- const struct kvm_memory_slot *old,
+ struct kvm_memory_slot *old,
const struct kvm_memory_slot *new,
enum kvm_mr_change change)
{
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 48abf1b9ad58..768c4a9269be 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -701,7 +701,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,

void kvm_arch_commit_memory_region(struct kvm *kvm,
const struct kvm_userspace_memory_region *mem,
- const struct kvm_memory_slot *old,
+ struct kvm_memory_slot *old,
const struct kvm_memory_slot *new,
enum kvm_mr_change change)
{
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 743e09dd38b5..1bfbeac13a3b 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -4508,7 +4508,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,

void kvm_arch_commit_memory_region(struct kvm *kvm,
const struct kvm_userspace_memory_region *mem,
- const struct kvm_memory_slot *old,
+ struct kvm_memory_slot *old,
const struct kvm_memory_slot *new,
enum kvm_mr_change change)
{
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index b55bf2ecdd98..a9d2d9decbc3 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -9932,7 +9932,7 @@ static void kvm_mmu_slot_apply_flags(struct kvm *kvm,

void kvm_arch_commit_memory_region(struct kvm *kvm,
const struct kvm_userspace_memory_region *mem,
- const struct kvm_memory_slot *old,
+ struct kvm_memory_slot *old,
const struct kvm_memory_slot *new,
enum kvm_mr_change change)
{
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index aa5cb2ff7a2b..33b76106cd75 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -678,7 +678,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
enum kvm_mr_change change);
void kvm_arch_commit_memory_region(struct kvm *kvm,
const struct kvm_userspace_memory_region *mem,
- const struct kvm_memory_slot *old,
+ struct kvm_memory_slot *old,
const struct kvm_memory_slot *new,
enum kvm_mr_change change);
bool kvm_largepages_enabled(void);
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index 66f59c067bf6..c9e0acefaba2 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -2253,7 +2253,7 @@ int kvm_mmu_init(void)

void kvm_arch_commit_memory_region(struct kvm *kvm,
const struct kvm_userspace_memory_region *mem,
- const struct kvm_memory_slot *old,
+ struct kvm_memory_slot *old,
const struct kvm_memory_slot *new,
enum kvm_mr_change change)
{
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 64f6c5d35260..69d6158cb405 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -984,7 +984,7 @@ static struct kvm_memslots *install_new_memslots(struct kvm *kvm,

static int kvm_set_memslot(struct kvm *kvm,
const struct kvm_userspace_memory_region *mem,
- const struct kvm_memory_slot *old,
+ struct kvm_memory_slot *old,
struct kvm_memory_slot *new, int as_id,
enum kvm_mr_change change)
{
--
2.24.1