linux-kernel - [PATCH 60/61] KVM: Drop largepages_enabled and its accessor/mutator

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Date:   Sat,  1 Feb 2020 10:52:17 -0800
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 60/61] KVM: Drop largepages_enabled and its accessor/mutator

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.

Signed-off-by: Sean Christopherson <sean.j.christopherson@...el.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 6d5331b0d937..50105b5c6370 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -683,8 +683,6 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
 				const 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 eb3709d55139..5851a8c27a28 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);
@@ -1368,17 +1366,6 @@ int kvm_clear_dirty_log_protect(struct kvm *kvm,
 EXPORT_SYMBOL_GPL(kvm_clear_dirty_log_protect);
 #endif
 
-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