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-rw-r--r--mm/kasan/kasan.h18
1 files changed, 9 insertions, 9 deletions
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 0e209b823b2c..38af25b9c89c 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -101,21 +101,21 @@ static inline bool kasan_sample_page_alloc(unsigned int order)
#ifdef CONFIG_KASAN_GENERIC
-/* Generic KASAN uses per-object metadata to store stack traces. */
+/*
+ * Generic KASAN uses per-object metadata to store alloc and free stack traces
+ * and the quarantine link.
+ */
static inline bool kasan_requires_meta(void)
{
- /*
- * Technically, Generic KASAN always collects stack traces right now.
- * However, let's use kasan_stack_collection_enabled() in case the
- * kasan.stacktrace command-line argument is changed to affect
- * Generic KASAN.
- */
- return kasan_stack_collection_enabled();
+ return true;
}
#else /* CONFIG_KASAN_GENERIC */
-/* Tag-based KASAN modes do not use per-object metadata. */
+/*
+ * Tag-based KASAN modes do not use per-object metadata: they use the stack
+ * ring to store alloc and free stack traces and do not use qurantine.
+ */
static inline bool kasan_requires_meta(void)
{
return false;