1 files changed, 4 insertions, 11 deletions

diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 31972cdba433..e5c2181fee6f 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -59,13 +59,6 @@ struct kasan_global {
  * Structures to keep alloc and free tracks *
  */
 
-enum kasan_state {
-        KASAN_STATE_INIT,
-        KASAN_STATE_ALLOC,
-        KASAN_STATE_QUARANTINE,
-        KASAN_STATE_FREE
-};
-
 #define KASAN_STACK_DEPTH 64
 
 struct kasan_track {
@@ -74,9 +67,8 @@ struct kasan_track {
 };
 
 struct kasan_alloc_meta {
-        struct kasan_track track;
-        u32 state : 2;  /* enum kasan_state */
-        u32 alloc_size : 30;
+        struct kasan_track alloc_track;
+        struct kasan_track free_track;
 };
 
 struct qlist_node {
@@ -87,7 +79,6 @@ struct kasan_free_meta {
          * Otherwise it might be used for the allocator freelist.
          */
         struct qlist_node quarantine_link;
-        struct kasan_track track;
 };
 
 struct kasan_alloc_meta *get_alloc_info(struct kmem_cache *cache,
@@ -108,6 +99,8 @@ static inline bool kasan_report_enabled(void)
 
 void kasan_report(unsigned long addr, size_t size,
                 bool is_write, unsigned long ip);
+void kasan_report_double_free(struct kmem_cache *cache, void *object,
+                        s8 shadow);
 
 #if defined(CONFIG_SLAB) || defined(CONFIG_SLUB)
 void quarantine_put(struct kasan_free_meta *info, struct kmem_cache *cache);