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KVM/arm64 fixes for 6.8, take #2

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- Avoid dropping the page refcount twice when freeing an unlinked
   page-table subtree.
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Merge tag 'kvmarm-fixes-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.8, take #2

- Avoid dropping the page refcount twice when freeing an unlinked
  page-table subtree.
This commit is contained in:
Paolo Bonzini 2024-02-16 12:02:38 -05:00
commit 9895ceeb5c
1 changed files with 0 additions and 2 deletions
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2
arch/arm64/kvm/hyp/pgtable.c
View file

@ -1419,7 +1419,6 @@ kvm_pte_t *kvm_pgtable_stage2_create_unlinked(struct kvm_pgtable *pgt,
level + 1);
if (ret) {
kvm_pgtable_stage2_free_unlinked(mm_ops, pgtable, level);
mm_ops->put_page(pgtable);
return ERR_PTR(ret);
}
@ -1502,7 +1501,6 @@ static int stage2_split_walker(const struct kvm_pgtable_visit_ctx *ctx,
if (!stage2_try_break_pte(ctx, mmu)) {
kvm_pgtable_stage2_free_unlinked(mm_ops, childp, level);
mm_ops->put_page(childp);
return -EAGAIN;
}