Remove zapped_obsolete_pages from struct kvm_arch{} and use local list
in kvm_zap_obsolete_pages().
zapped_obsolete_pages list was used in struct kvm_arch{} to provide
pages for KVM MMU shrinker. Since, KVM MMU shrinker is no-op now, this
is not needed.
Signed-off-by: Vipin Sharma <vipinsh@xxxxxxxxxx>
Reviewed-by: David Matlack <dmatlack@xxxxxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 1 -
arch/x86/kvm/mmu/mmu.c | 8 ++++----
2 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 808c292ad3f4..ebbe692acf3f 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1252,7 +1252,6 @@ struct kvm_arch {
u8 mmu_valid_gen;
struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
struct list_head active_mmu_pages;
- struct list_head zapped_obsolete_pages;
/*
* A list of kvm_mmu_page structs that, if zapped, could possibly be
* replaced by an NX huge page. A shadow page is on this list if its
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 0d07767f7922..3a452989f5cd 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -5947,6 +5947,7 @@ static void kvm_zap_obsolete_pages(struct kvm *kvm)
{
struct kvm_mmu_page *sp, *node;
int nr_zapped, batch = 0;
+ LIST_HEAD(invalid_list);
bool unstable;
restart:
@@ -5979,8 +5980,8 @@ static void kvm_zap_obsolete_pages(struct kvm *kvm)
goto restart;
}
- unstable = __kvm_mmu_prepare_zap_page(kvm, sp,
- &kvm->arch.zapped_obsolete_pages, &nr_zapped);
+ unstable = __kvm_mmu_prepare_zap_page(kvm, sp, &invalid_list,
+ &nr_zapped);
batch += nr_zapped;
if (unstable)
@@ -5996,7 +5997,7 @@ static void kvm_zap_obsolete_pages(struct kvm *kvm)
* kvm_mmu_load()), and the reload in the caller ensure no vCPUs are
* running with an obsolete MMU.
*/
- kvm_mmu_commit_zap_page(kvm, &kvm->arch.zapped_obsolete_pages);
+ kvm_mmu_commit_zap_page(kvm, &invalid_list);
}
/*
@@ -6072,7 +6073,6 @@ int kvm_mmu_init_vm(struct kvm *kvm)
int r;
INIT_LIST_HEAD(&kvm->arch.active_mmu_pages);
- INIT_LIST_HEAD(&kvm->arch.zapped_obsolete_pages);
INIT_LIST_HEAD(&kvm->arch.possible_nx_huge_pages);
spin_lock_init(&kvm->arch.mmu_unsync_pages_lock);
--
2.40.0.rc0.216.gc4246ad0f0-goog
