kasan: define KASAN_MEMORY_PER_SHADOW_PAGE

[linux-2.6-microblaze.git] / mm / kasan / kasan.h

diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index ac49945..eec88bf 100644 (file)
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -5,8 +5,10 @@
 #include <linux/kasan.h>
 #include <linux/stackdepot.h>
 
-#define KASAN_SHADOW_SCALE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT)
-#define KASAN_SHADOW_MASK       (KASAN_SHADOW_SCALE_SIZE - 1)
+#define KASAN_GRANULE_SIZE     (1UL << KASAN_SHADOW_SCALE_SHIFT)
+#define KASAN_GRANULE_MASK     (KASAN_GRANULE_SIZE - 1)
+
+#define KASAN_MEMORY_PER_SHADOW_PAGE   (KASAN_GRANULE_SIZE << PAGE_SHIFT)
 
 #define KASAN_TAG_KERNEL       0xFF /* native kernel pointers tag */
 #define KASAN_TAG_INVALID      0xFE /* inaccessible memory tag */
@@ -150,7 +152,8 @@ static inline bool addr_has_shadow(const void *addr)
        return (addr >= kasan_shadow_to_mem((void *)KASAN_SHADOW_START));
 }
 
-void kasan_poison_shadow(const void *address, size_t size, u8 value);
+void poison_range(const void *address, size_t size, u8 value);
+void unpoison_range(const void *address, size_t size);
 
 /**
  * check_memory_region - Check memory region, and report if invalid access.