diff mbox series

[v13,67/85] KVM: LoongArch: Mark "struct page" pfn accessed before dropping mmu_lock

Message ID 20241010182427.1434605-68-seanjc@google.com (mailing list archive)
State New, archived
Headers show
Series KVM: Stop grabbing references to PFNMAP'd pages | expand

Commit Message

Sean Christopherson Oct. 10, 2024, 6:24 p.m. UTC 
Mark pages accessed before dropping mmu_lock when faulting in guest memory
so that LoongArch can convert to kvm_release_faultin_page() without
tripping its lockdep assertion on mmu_lock being held.

Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 arch/loongarch/kvm/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/loongarch/kvm/mmu.c b/arch/loongarch/kvm/mmu.c
index ed43504c5c7e..7066cafcce64 100644
--- a/arch/loongarch/kvm/mmu.c
+++ b/arch/loongarch/kvm/mmu.c
@@ -902,13 +902,13 @@  static int kvm_map_page(struct kvm_vcpu *vcpu, unsigned long gpa, bool write)
 
 	if (writeable)
 		kvm_set_pfn_dirty(pfn);
+	kvm_release_pfn_clean(pfn);
 
 	spin_unlock(&kvm->mmu_lock);
 
 	if (prot_bits & _PAGE_DIRTY)
 		mark_page_dirty_in_slot(kvm, memslot, gfn);
 
-	kvm_release_pfn_clean(pfn);
 out:
 	srcu_read_unlock(&kvm->srcu, srcu_idx);
 	return err;