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| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-09-07 16:06:57 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-09-22 17:03:20 -0400 |
| commit | 604f533262aea08671a74c2fd630c7deb9eb3c0d (patch) | |
| tree | acf5d0cf8e891c86f1d8255fcda632c5d99cf8e9 | |
| parent | 561cafebb2cf97b0927b4fb0eba22de6200f682e (diff) | |
| download | linux-stable-604f533262aea08671a74c2fd630c7deb9eb3c0d.tar.gz linux-stable-604f533262aea08671a74c2fd630c7deb9eb3c0d.tar.bz2 linux-stable-604f533262aea08671a74c2fd630c7deb9eb3c0d.zip | |
KVM: x86/mmu: add missing update to max_mmu_rmap_size
The update to statistic max_mmu_rmap_size is unintentionally removed by
commit 4293ddb788c1 ("KVM: x86/mmu: Remove redundant spte present check
in mmu_set_spte"). Add missing update to it or max_mmu_rmap_size will
always be nonsensical 0.
Fixes: 4293ddb788c1 ("KVM: x86/mmu: Remove redundant spte present check in mmu_set_spte")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Message-Id: <20220907080657.42898-1-linmiaohe@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index e418ef3ecfcb..3552e6af3684 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -1596,6 +1596,8 @@ static void __rmap_add(struct kvm *kvm, rmap_head = gfn_to_rmap(gfn, sp->role.level, slot); rmap_count = pte_list_add(cache, spte, rmap_head); + if (rmap_count > kvm->stat.max_mmu_rmap_size) + kvm->stat.max_mmu_rmap_size = rmap_count; if (rmap_count > RMAP_RECYCLE_THRESHOLD) { kvm_zap_all_rmap_sptes(kvm, rmap_head); kvm_flush_remote_tlbs_with_address( |