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-rw-r--r--mm/page_alloc.c7
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;
}