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* [PATCH] KVM: x86: fix 32 bit build
@ 2021-06-16 15:50 Maxim Levitsky
  2021-06-16 15:59 ` Sean Christopherson
  0 siblings, 1 reply; 3+ messages in thread
From: Maxim Levitsky @ 2021-06-16 15:50 UTC (permalink / raw)
  To: kvm
  Cc: Joerg Roedel, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
	Borislav Petkov, Vitaly Kuznetsov,
	maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT),
	open list:X86 ARCHITECTURE (32-BIT AND 64-BIT),
	Jim Mattson, Wanpeng Li, Paolo Bonzini, Sean Christopherson,
	Maxim Levitsky

Now that kvm->stat.nx_lpage_splits is 64 bit, use DIV_ROUND_UP_ULL
when doing division.

Fixes: 7ee093d4f3f5 ("KVM: switch per-VM stats to u64")
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
---
 arch/x86/kvm/mmu/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 720ceb0a1f5c..97372225f183 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -6054,7 +6054,7 @@ static void kvm_recover_nx_lpages(struct kvm *kvm)
 	write_lock(&kvm->mmu_lock);
 
 	ratio = READ_ONCE(nx_huge_pages_recovery_ratio);
-	to_zap = ratio ? DIV_ROUND_UP(kvm->stat.nx_lpage_splits, ratio) : 0;
+	to_zap = ratio ? DIV_ROUND_UP_ULL(kvm->stat.nx_lpage_splits, ratio) : 0;
 	for ( ; to_zap; --to_zap) {
 		if (list_empty(&kvm->arch.lpage_disallowed_mmu_pages))
 			break;
-- 
2.26.3


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-06-16 19:00 UTC | newest]

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2021-06-16 15:50 [PATCH] KVM: x86: fix 32 bit build Maxim Levitsky
2021-06-16 15:59 ` Sean Christopherson
2021-06-16 18:59   ` Maxim Levitsky

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