Merge tag 'loongarch-kvm-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD

LoongArch KVM changes for v6.12

1. Revert qspinlock to test-and-set simple lock on VM.
2. Add Loongson Binary Translation extension support.
3. Add PMU support for guest.
4. Enable paravirt feature control from VMM.
5. Implement function kvm_para_has_feature().

1 files changed, 7 insertions, 0 deletions

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c565de8f48e9..91ace8ca97e2 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1054,6 +1054,13 @@ __always_inline bool free_pages_prepare(struct page *page,
 		reset_page_owner(page, order);
 		page_table_check_free(page, order);
 		pgalloc_tag_sub(page, 1 << order);
+
+		/*
+		 * The page is isolated and accounted for.
+		 * Mark the codetag as empty to avoid accounting error
+		 * when the page is freed by unpoison_memory().
+		 */
+		clear_page_tag_ref(page);
 		return false;
 	}