include/linux/kmemcheck.h

   1 #ifndef LINUX_KMEMCHECK_H
   2 #define LINUX_KMEMCHECK_H
   3
   4 #include <linux/mm_types.h>
   5 #include <linux/types.h>
   6
   7 #ifdef CONFIG_KMEMCHECK
   8 extern int kmemcheck_enabled;
   9
  10 /* The slab-related functions. */
  11 void kmemcheck_alloc_shadow(struct page *page, int order, gfp_t flags, int node);
  12 void kmemcheck_free_shadow(struct page *page, int order);
  13 void kmemcheck_slab_alloc(struct kmem_cache *s, gfp_t gfpflags, void *object,
  14                           size_t size);
  15 void kmemcheck_slab_free(struct kmem_cache *s, void *object, size_t size);
  16
  17 void kmemcheck_pagealloc_alloc(struct page *p, unsigned int order,
  18                                gfp_t gfpflags);
  19
  20 void kmemcheck_show_pages(struct page *p, unsigned int n);
  21 void kmemcheck_hide_pages(struct page *p, unsigned int n);
  22
  23 bool kmemcheck_page_is_tracked(struct page *p);
  24
  25 void kmemcheck_mark_unallocated(void *address, unsigned int n);
  26 void kmemcheck_mark_uninitialized(void *address, unsigned int n);
  27 void kmemcheck_mark_initialized(void *address, unsigned int n);
  28 void kmemcheck_mark_freed(void *address, unsigned int n);
  29
  30 void kmemcheck_mark_unallocated_pages(struct page *p, unsigned int n);
  31 void kmemcheck_mark_uninitialized_pages(struct page *p, unsigned int n);
  32 void kmemcheck_mark_initialized_pages(struct page *p, unsigned int n);
  33
  34 int kmemcheck_show_addr(unsigned long address);
  35 int kmemcheck_hide_addr(unsigned long address);
  36 #else
  37 #define kmemcheck_enabled 0
  38
  39 static inline void
  40 kmemcheck_alloc_shadow(struct page *page, int order, gfp_t flags, int node)
  41 {
  42 }
  43
  44 static inline void
  45 kmemcheck_free_shadow(struct page *page, int order)
  46 {
  47 }
  48
  49 static inline void
  50 kmemcheck_slab_alloc(struct kmem_cache *s, gfp_t gfpflags, void *object,
  51                      size_t size)
  52 {
  53 }
  54
  55 static inline void kmemcheck_slab_free(struct kmem_cache *s, void *object,
  56                                        size_t size)
  57 {
  58 }
  59
  60 static inline void kmemcheck_pagealloc_alloc(struct page *p,
  61         unsigned int order, gfp_t gfpflags)
  62 {
  63 }
  64
  65 static inline bool kmemcheck_page_is_tracked(struct page *p)
  66 {
  67         return false;
  68 }
  69
  70 static inline void kmemcheck_mark_unallocated(void *address, unsigned int n)
  71 {
  72 }
  73
  74 static inline void kmemcheck_mark_uninitialized(void *address, unsigned int n)
  75 {
  76 }
  77
  78 static inline void kmemcheck_mark_initialized(void *address, unsigned int n)
  79 {
  80 }
  81
  82 static inline void kmemcheck_mark_freed(void *address, unsigned int n)
  83 {
  84 }
  85
  86 static inline void kmemcheck_mark_unallocated_pages(struct page *p,
  87                                                     unsigned int n)
  88 {
  89 }
  90
  91 static inline void kmemcheck_mark_uninitialized_pages(struct page *p,
  92                                                       unsigned int n)
  93 {
  94 }
  95
  96 static inline void kmemcheck_mark_initialized_pages(struct page *p,
  97                                                     unsigned int n)
  98 {
  99 }
 100
 101 #endif /* CONFIG_KMEMCHECK */
 102
 103 #endif /* LINUX_KMEMCHECK_H */