-/* flags passed to a constructor func */
-#define SLAB_CTOR_CONSTRUCTOR 0x001UL /* if not set, then deconstructor */
-#define SLAB_CTOR_ATOMIC 0x002UL /* tell constructor it can't sleep */
-#define SLAB_CTOR_VERIFY 0x004UL /* tell constructor it's a verify call */
-
-#ifndef CONFIG_SLOB
-
-/* prototypes */
-extern void __init kmem_cache_init(void);
-
-extern kmem_cache_t *kmem_cache_create(const char *, size_t, size_t, unsigned long,
- void (*)(void *, kmem_cache_t *, unsigned long),
- void (*)(void *, kmem_cache_t *, unsigned long));
-extern int kmem_cache_destroy(kmem_cache_t *);
-extern int kmem_cache_shrink(kmem_cache_t *);
-extern void *kmem_cache_alloc(kmem_cache_t *, gfp_t);
-extern void *kmem_cache_zalloc(struct kmem_cache *, gfp_t);
-extern void kmem_cache_free(kmem_cache_t *, void *);
-extern unsigned int kmem_cache_size(kmem_cache_t *);
-extern const char *kmem_cache_name(kmem_cache_t *);
-extern kmem_cache_t *kmem_find_general_cachep(size_t size, gfp_t gfpflags);
-
-/* Size description struct for general caches. */
-struct cache_sizes {
- size_t cs_size;
- kmem_cache_t *cs_cachep;
- kmem_cache_t *cs_dmacachep;
-};
-extern struct cache_sizes malloc_sizes[];
-
-extern void *__kmalloc(size_t, gfp_t);
-#ifndef CONFIG_DEBUG_SLAB
-#define ____kmalloc(size, flags) __kmalloc(size, flags)
-#else
-extern void *__kmalloc_track_caller(size_t, gfp_t, void*);
-#define ____kmalloc(size, flags) \
- __kmalloc_track_caller(size, flags, __builtin_return_address(0))
-#endif
+/*
+ * The largest kmalloc size supported by the slab allocators is
+ * 32 megabyte (2^25) or the maximum allocatable page order if that is
+ * less than 32 MB.
+ *
+ * WARNING: Its not easy to increase this value since the allocators have
+ * to do various tricks to work around compiler limitations in order to
+ * ensure proper constant folding.
+ */
+#define KMALLOC_SHIFT_HIGH ((MAX_ORDER + PAGE_SHIFT - 1) <= 25 ? \
+ (MAX_ORDER + PAGE_SHIFT - 1) : 25)