[PATCH v2 62/66] KVM: Drop largepages_enabled and its accessor/mutator

Sean Christopherson
2020-03-02T23:59:45Z

Drop largepages_enabled, kvm_largepages_enabled() and
kvm_disable_largepages() now that all users are gone.

Note, largepages_enabled was an x86-only flag that got left in common
KVM code when KVM gained support for multiple architectures.

No functional change intended.

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
include/linux/kvm_host.h | 2 --
virt/kvm/kvm_main.c | 13 -------------
2 files changed, 15 deletions(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 4bd5251b4477..30fdf7b3b9a2 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -684,8 +684,6 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
struct kvm_memory_slot *old,
const struct kvm_memory_slot *new,
enum kvm_mr_change change);
-bool kvm_largepages_enabled(void);
-void kvm_disable_largepages(void);
/* flush all memory translations */
void kvm_arch_flush_shadow_all(struct kvm *kvm);
/* flush memory translations pointing to 'slot' */
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 26ccb6c0a461..9de92072ddc9 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -149,8 +149,6 @@ static void mark_page_dirty_in_slot(struct kvm_memory_slot *memslot, gfn_t gfn);
__visible bool kvm_rebooting;
EXPORT_SYMBOL_GPL(kvm_rebooting);

-static bool largepages_enabled = true;
-
#define KVM_EVENT_CREATE_VM 0
#define KVM_EVENT_DESTROY_VM 1
static void kvm_uevent_notify_change(unsigned int type, struct kvm *kvm);
@@ -1588,17 +1586,6 @@ static int kvm_vm_ioctl_clear_dirty_log(struct kvm *kvm,
}
#endif /* CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT */

-bool kvm_largepages_enabled(void)
-{
- return largepages_enabled;
-}
-
-void kvm_disable_largepages(void)
-{
- largepages_enabled = false;
-}
-EXPORT_SYMBOL_GPL(kvm_disable_largepages);
-
struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
{
return __gfn_to_memslot(kvm_memslots(kvm), gfn);
--
2.24.1