[PATCH] KVM: arm64: account pKVM reclaim against the VM mm

[Bradley Morgan]

Protected guest faults charge long term pins to the VM's mm. Teardown
can run later from file release, where current->mm may be unrelated.

Drop the charge from kvm->mm instead.

Fixes: 4e6e03f9eadd ("KVM: arm64: Hook up reclaim hypercall to pkvm_pgtable_stage2_destroy()")
Signed-off-by: Bradley Morgan <include at grrlz.net>
---
 arch/arm64/kvm/pkvm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index 053e4f733e4b..428723b1b0f5 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -352,7 +352,7 @@ static int __pkvm_pgtable_stage2_reclaim(struct kvm_pgtable *pgt, u64 start, u64
 		page = pfn_to_page(mapping->pfn);
 		WARN_ON_ONCE(mapping->nr_pages != 1);
 		unpin_user_pages_dirty_lock(&page, 1, true);
-		account_locked_vm(current->mm, 1, false);
+		account_locked_vm(kvm->mm, 1, false);
 		pkvm_mapping_remove(mapping, &pgt->pkvm_mappings);
 		kfree(mapping);
 	}
-- 
2.53.0