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mm, kasan: add GFP flags to KASAN API

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Add GFP flags to KASAN hooks for future patches to use.

This patch is based on the "mm: kasan: unified support for SLUB and SLAB
allocators" patch originally prepared by Dmitry Chernenkov.

Signed-off-by: Alexander Potapenko <glider@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrey Konovalov <adech.fo@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Konstantin Serebryany <kcc@google.com>
Cc: Dmitry Chernenkov <dmitryc@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexander Potapenko 2016-03-25 14:22:02 -07:00 • committed by Linus Torvalds
parent 7ed2f9e663
commit 505f5dcb1c
8 changed files with 48 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

19
include/linux/kasan.h
View file

@ -55,13 +55,14 @@ void kasan_poison_slab(struct page *page);
void kasan_unpoison_object_data(struct kmem_cache *cache, void *object);
void kasan_poison_object_data(struct kmem_cache *cache, void *object);
void kasan_kmalloc_large(const void *ptr, size_t size);
void kasan_kmalloc_large(const void *ptr, size_t size, gfp_t flags);
void kasan_kfree_large(const void *ptr);
void kasan_kfree(void *ptr);
void kasan_kmalloc(struct kmem_cache *s, const void *object, size_t size);
void kasan_krealloc(const void *object, size_t new_size);
void kasan_kmalloc(struct kmem_cache *s, const void *object, size_t size,
gfp_t flags);
void kasan_krealloc(const void *object, size_t new_size, gfp_t flags);
void kasan_slab_alloc(struct kmem_cache *s, void *object);
void kasan_slab_alloc(struct kmem_cache *s, void *object, gfp_t flags);
void kasan_slab_free(struct kmem_cache *s, void *object);
struct kasan_cache {
@ -94,14 +95,16 @@ static inline void kasan_unpoison_object_data(struct kmem_cache *cache,
static inline void kasan_poison_object_data(struct kmem_cache *cache,
void *object) {}
static inline void kasan_kmalloc_large(void *ptr, size_t size) {}
static inline void kasan_kmalloc_large(void *ptr, size_t size, gfp_t flags) {}
static inline void kasan_kfree_large(const void *ptr) {}
static inline void kasan_kfree(void *ptr) {}
static inline void kasan_kmalloc(struct kmem_cache *s, const void *object,
size_t size) {}
static inline void kasan_krealloc(const void *object, size_t new_size) {}
size_t size, gfp_t flags) {}
static inline void kasan_krealloc(const void *object, size_t new_size,
gfp_t flags) {}
static inline void kasan_slab_alloc(struct kmem_cache *s, void *object) {}
static inline void kasan_slab_alloc(struct kmem_cache *s, void *object,
gfp_t flags) {}
static inline void kasan_slab_free(struct kmem_cache *s, void *object) {}
static inline int kasan_module_alloc(void *addr, size_t size) { return 0; }