[mirror_ubuntu-bionic-kernel.git] / include / linux / slab.h

/*
 * linux/include/linux/slab.h
 * Written by Mark Hemment, 1996.
 * (markhe@nextd.demon.co.uk)
 */

#ifndef _LINUX_SLAB_H
#define	_LINUX_SLAB_H

#ifdef __KERNEL__

#include <linux/gfp.h>
#include <linux/init.h>
#include <linux/types.h>
#include <asm/page.h>		/* kmalloc_sizes.h needs PAGE_SIZE */
#include <asm/cache.h>		/* kmalloc_sizes.h needs L1_CACHE_BYTES */
#include <linux/compiler.h>

/* kmem_cache_t exists for legacy reasons and is not used by code in mm */
typedef struct kmem_cache kmem_cache_t __deprecated;

/* flags to pass to kmem_cache_create().
 * The first 3 are only valid when the allocator as been build
 * SLAB_DEBUG_SUPPORT.
 */
#define	SLAB_DEBUG_FREE		0x00000100UL	/* Peform (expensive) checks on free */
#define	SLAB_DEBUG_INITIAL	0x00000200UL	/* Call constructor (as verifier) */
#define	SLAB_RED_ZONE		0x00000400UL	/* Red zone objs in a cache */
#define	SLAB_POISON		0x00000800UL	/* Poison objects */
#define	SLAB_HWCACHE_ALIGN	0x00002000UL	/* align objs on a h/w cache lines */
#define SLAB_CACHE_DMA		0x00004000UL	/* use GFP_DMA memory */
#define SLAB_MUST_HWCACHE_ALIGN	0x00008000UL	/* force alignment */
#define SLAB_STORE_USER		0x00010000UL	/* store the last owner for bug hunting */
#define SLAB_RECLAIM_ACCOUNT	0x00020000UL	/* track pages allocated to indicate
						   what is reclaimable later*/
#define SLAB_PANIC		0x00040000UL	/* panic if kmem_cache_create() fails */
#define SLAB_DESTROY_BY_RCU	0x00080000UL	/* defer freeing pages to RCU */
#define SLAB_MEM_SPREAD		0x00100000UL	/* Spread some memory over cpuset */

/* 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 struct kmem_cache *kmem_cache_create(const char *, size_t, size_t,
			unsigned long,
			void (*)(void *, struct kmem_cache *, unsigned long),
			void (*)(void *, struct kmem_cache *, unsigned long));
extern void kmem_cache_destroy(struct kmem_cache *);
extern int kmem_cache_shrink(struct kmem_cache *);
extern void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
extern void *kmem_cache_zalloc(struct kmem_cache *, gfp_t);
extern void kmem_cache_free(struct kmem_cache *, void *);
extern unsigned int kmem_cache_size(struct kmem_cache *);
extern const char *kmem_cache_name(struct kmem_cache *);

/* Size description struct for general caches. */
struct cache_sizes {
	size_t		 	cs_size;
	struct kmem_cache	*cs_cachep;
	struct kmem_cache	*cs_dmacachep;
};
extern struct cache_sizes malloc_sizes[];

extern void *__kmalloc(size_t, gfp_t);

/**
 * kmalloc - allocate memory
 * @size: how many bytes of memory are required.
 * @flags: the type of memory to allocate.
 *
 * kmalloc is the normal method of allocating memory
 * in the kernel.
 *
 * The @flags argument may be one of:
 *
 * %GFP_USER - Allocate memory on behalf of user.  May sleep.
 *
 * %GFP_KERNEL - Allocate normal kernel ram.  May sleep.
 *
 * %GFP_ATOMIC - Allocation will not sleep.
 *   For example, use this inside interrupt handlers.
 *
 * %GFP_HIGHUSER - Allocate pages from high memory.
 *
 * %GFP_NOIO - Do not do any I/O at all while trying to get memory.
 *
 * %GFP_NOFS - Do not make any fs calls while trying to get memory.
 *
 * Also it is possible to set different flags by OR'ing
 * in one or more of the following additional @flags:
 *
 * %__GFP_COLD - Request cache-cold pages instead of
 *   trying to return cache-warm pages.
 *
 * %__GFP_DMA - Request memory from the DMA-capable zone.
 *
 * %__GFP_HIGH - This allocation has high priority and may use emergency pools.
 *
 * %__GFP_HIGHMEM - Allocated memory may be from highmem.
 *
 * %__GFP_NOFAIL - Indicate that this allocation is in no way allowed to fail
 *   (think twice before using).
 *
 * %__GFP_NORETRY - If memory is not immediately available,
 *   then give up at once.
 *
 * %__GFP_NOWARN - If allocation fails, don't issue any warnings.
 *
 * %__GFP_REPEAT - If allocation fails initially, try once more before failing.
 */
static inline void *kmalloc(size_t size, gfp_t flags)
{
	if (__builtin_constant_p(size)) {
		int i = 0;
#define CACHE(x) \
		if (size <= x) \
			goto found; \
		else \
			i++;
#include "kmalloc_sizes.h"
#undef CACHE
		{
			extern void __you_cannot_kmalloc_that_much(void);
			__you_cannot_kmalloc_that_much();
		}
found:
		return kmem_cache_alloc((flags & GFP_DMA) ?
			malloc_sizes[i].cs_dmacachep :
			malloc_sizes[i].cs_cachep, flags);
	}
	return __kmalloc(size, flags);
}

/*
 * kmalloc_track_caller is a special version of kmalloc that records the
 * calling function of the routine calling it for slab leak tracking instead
 * of just the calling function (confusing, eh?).
 * It's useful when the call to kmalloc comes from a widely-used standard
 * allocator where we care about the real place the memory allocation
 * request comes from.
 */
#ifndef CONFIG_DEBUG_SLAB
#define kmalloc_track_caller(size, flags) \
	__kmalloc(size, flags)
#else
extern void *__kmalloc_track_caller(size_t, gfp_t, void*);
#define kmalloc_track_caller(size, flags) \
	__kmalloc_track_caller(size, flags, __builtin_return_address(0))
#endif

extern void *__kzalloc(size_t, gfp_t);

/**
 * kzalloc - allocate memory. The memory is set to zero.
 * @size: how many bytes of memory are required.
 * @flags: the type of memory to allocate (see kmalloc).
 */
static inline void *kzalloc(size_t size, gfp_t flags)
{
	if (__builtin_constant_p(size)) {
		int i = 0;
#define CACHE(x) \
		if (size <= x) \
			goto found; \
		else \
			i++;
#include "kmalloc_sizes.h"
#undef CACHE
		{
			extern void __you_cannot_kzalloc_that_much(void);
			__you_cannot_kzalloc_that_much();
		}
found:
		return kmem_cache_zalloc((flags & GFP_DMA) ?
			malloc_sizes[i].cs_dmacachep :
			malloc_sizes[i].cs_cachep, flags);
	}
	return __kzalloc(size, flags);
}

/**
 * kcalloc - allocate memory for an array. The memory is set to zero.
 * @n: number of elements.
 * @size: element size.
 * @flags: the type of memory to allocate.
 */
static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
{
	if (n != 0 && size > ULONG_MAX / n)
		return NULL;
	return kzalloc(n * size, flags);
}

extern void kfree(const void *);
extern unsigned int ksize(const void *);
extern int slab_is_available(void);

#ifdef CONFIG_NUMA
extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
extern void *__kmalloc_node(size_t size, gfp_t flags, int node);

static inline void *kmalloc_node(size_t size, gfp_t flags, int node)
{
	if (__builtin_constant_p(size)) {
		int i = 0;
#define CACHE(x) \
		if (size <= x) \
			goto found; \
		else \
			i++;
#include "kmalloc_sizes.h"
#undef CACHE
		{
			extern void __you_cannot_kmalloc_that_much(void);
			__you_cannot_kmalloc_that_much();
		}
found:
		return kmem_cache_alloc_node((flags & GFP_DMA) ?
			malloc_sizes[i].cs_dmacachep :
			malloc_sizes[i].cs_cachep, flags, node);
	}
	return __kmalloc_node(size, flags, node);
}

/*
 * kmalloc_node_track_caller is a special version of kmalloc_node that
 * records the calling function of the routine calling it for slab leak
 * tracking instead of just the calling function (confusing, eh?).
 * It's useful when the call to kmalloc_node comes from a widely-used
 * standard allocator where we care about the real place the memory
 * allocation request comes from.
 */
#ifndef CONFIG_DEBUG_SLAB
#define kmalloc_node_track_caller(size, flags, node) \
	__kmalloc_node(size, flags, node)
#else
extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, void *);
#define kmalloc_node_track_caller(size, flags, node) \
	__kmalloc_node_track_caller(size, flags, node, \
			__builtin_return_address(0))
#endif
#else /* CONFIG_NUMA */
static inline void *kmem_cache_alloc_node(struct kmem_cache *cachep,
					gfp_t flags, int node)
{
	return kmem_cache_alloc(cachep, flags);
}
static inline void *kmalloc_node(size_t size, gfp_t flags, int node)
{
	return kmalloc(size, flags);
}

#define kmalloc_node_track_caller(size, flags, node) \
	kmalloc_track_caller(size, flags)
#endif

extern int FASTCALL(kmem_cache_reap(int));
extern int FASTCALL(kmem_ptr_validate(struct kmem_cache *cachep, void *ptr));

#else /* CONFIG_SLOB */

/* SLOB allocator routines */

void kmem_cache_init(void);
struct kmem_cache *kmem_cache_create(const char *c, size_t, size_t,
	unsigned long,
	void (*)(void *, struct kmem_cache *, unsigned long),
	void (*)(void *, struct kmem_cache *, unsigned long));
void kmem_cache_destroy(struct kmem_cache *c);
void *kmem_cache_alloc(struct kmem_cache *c, gfp_t flags);
void *kmem_cache_zalloc(struct kmem_cache *, gfp_t);
void kmem_cache_free(struct kmem_cache *c, void *b);
const char *kmem_cache_name(struct kmem_cache *);
void *kmalloc(size_t size, gfp_t flags);
void *__kzalloc(size_t size, gfp_t flags);
void kfree(const void *m);
unsigned int ksize(const void *m);
unsigned int kmem_cache_size(struct kmem_cache *c);

static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
{
	return __kzalloc(n * size, flags);
}

#define kmem_cache_shrink(d) (0)
#define kmem_cache_reap(a)
#define kmem_ptr_validate(a, b) (0)
#define kmem_cache_alloc_node(c, f, n) kmem_cache_alloc(c, f)
#define kmalloc_node(s, f, n) kmalloc(s, f)
#define kzalloc(s, f) __kzalloc(s, f)
#define kmalloc_track_caller kmalloc

#define kmalloc_node_track_caller kmalloc_node

#endif /* CONFIG_SLOB */

#endif	/* __KERNEL__ */

#endif	/* _LINUX_SLAB_H */
Commit	Line	Data
1da177e4	1	/*
f30c2269	2	* linux/include/linux/slab.h
1da177e4 LT	3	* Written by Mark Hemment, 1996.
	4	* (markhe@nextd.demon.co.uk)
	5	*/
	6
	7	#ifndef _LINUX_SLAB_H
	8	#define _LINUX_SLAB_H
	9
1b1cec4b	10	#ifdef __KERNEL__
1da177e4	11
1b1cec4b AM	12	#include <linux/gfp.h>
	13	#include <linux/init.h>
	14	#include <linux/types.h>
	15	#include <asm/page.h> /* kmalloc_sizes.h needs PAGE_SIZE */
	16	#include <asm/cache.h> /* kmalloc_sizes.h needs L1_CACHE_BYTES */
	17	#include <linux/compiler.h>
1da177e4	18
1b1cec4b AM	19	/* kmem_cache_t exists for legacy reasons and is not used by code in mm */
1b1cec4b AM	20	typedef struct kmem_cache kmem_cache_t __deprecated;
1da177e4	21
1da177e4 LT	22	/* flags to pass to kmem_cache_create().
	23	* The first 3 are only valid when the allocator as been build
	24	* SLAB_DEBUG_SUPPORT.
	25	*/
	26	#define SLAB_DEBUG_FREE 0x00000100UL /* Peform (expensive) checks on free */
	27	#define SLAB_DEBUG_INITIAL 0x00000200UL /* Call constructor (as verifier) */
	28	#define SLAB_RED_ZONE 0x00000400UL /* Red zone objs in a cache */
	29	#define SLAB_POISON 0x00000800UL /* Poison objects */
1da177e4 LT	30	#define SLAB_HWCACHE_ALIGN 0x00002000UL /* align objs on a h/w cache lines */
	31	#define SLAB_CACHE_DMA 0x00004000UL /* use GFP_DMA memory */
	32	#define SLAB_MUST_HWCACHE_ALIGN 0x00008000UL /* force alignment */
	33	#define SLAB_STORE_USER 0x00010000UL /* store the last owner for bug hunting */
	34	#define SLAB_RECLAIM_ACCOUNT 0x00020000UL /* track pages allocated to indicate
	35	what is reclaimable later*/
	36	#define SLAB_PANIC 0x00040000UL /* panic if kmem_cache_create() fails */
	37	#define SLAB_DESTROY_BY_RCU 0x00080000UL /* defer freeing pages to RCU */
101a5001	38	#define SLAB_MEM_SPREAD 0x00100000UL /* Spread some memory over cpuset */
1da177e4 LT	39
	40	/* flags passed to a constructor func */
	41	#define SLAB_CTOR_CONSTRUCTOR 0x001UL /* if not set, then deconstructor */
	42	#define SLAB_CTOR_ATOMIC 0x002UL /* tell constructor it can't sleep */
	43	#define SLAB_CTOR_VERIFY 0x004UL /* tell constructor it's a verify call */
	44
10cef602 MM	45	#ifndef CONFIG_SLOB
10cef602 MM	46
1da177e4 LT	47	/* prototypes */
	48	extern void __init kmem_cache_init(void);
	49
ebe29738 CL	50	extern struct kmem_cache kmem_cache_create(const char , size_t, size_t,
	51	unsigned long,
	52	void ()(void , struct kmem_cache *, unsigned long),
	53	void ()(void , struct kmem_cache *, unsigned long));
	54	extern void kmem_cache_destroy(struct kmem_cache *);
	55	extern int kmem_cache_shrink(struct kmem_cache *);
	56	extern void kmem_cache_alloc(struct kmem_cache , gfp_t);
a8c0f9a4	57	extern void kmem_cache_zalloc(struct kmem_cache , gfp_t);
ebe29738 CL	58	extern void kmem_cache_free(struct kmem_cache , void );
	59	extern unsigned int kmem_cache_size(struct kmem_cache *);
	60	extern const char kmem_cache_name(struct kmem_cache );
1da177e4 LT	61
	62	/* Size description struct for general caches. */
	63	struct cache_sizes {
ebe29738 CL	64	size_t cs_size;
	65	struct kmem_cache *cs_cachep;
	66	struct kmem_cache *cs_dmacachep;
1da177e4 LT	67	};
1da177e4 LT	68	extern struct cache_sizes malloc_sizes[];
7fd6b141	69
dd0fc66f	70	extern void *__kmalloc(size_t, gfp_t);
1da177e4	71
800590f5 PD	72	/**
	73	* kmalloc - allocate memory
	74	* @size: how many bytes of memory are required.
	75	* @flags: the type of memory to allocate.
	76	*
	77	* kmalloc is the normal method of allocating memory
	78	* in the kernel.
	79	*
	80	* The @flags argument may be one of:
	81	*
	82	* %GFP_USER - Allocate memory on behalf of user. May sleep.
	83	*
	84	* %GFP_KERNEL - Allocate normal kernel ram. May sleep.
	85	*
	86	* %GFP_ATOMIC - Allocation will not sleep.
	87	* For example, use this inside interrupt handlers.
	88	*
	89	* %GFP_HIGHUSER - Allocate pages from high memory.
	90	*
	91	* %GFP_NOIO - Do not do any I/O at all while trying to get memory.
	92	*
	93	* %GFP_NOFS - Do not make any fs calls while trying to get memory.
	94	*
	95	* Also it is possible to set different flags by OR'ing
	96	* in one or more of the following additional @flags:
	97	*
	98	* %__GFP_COLD - Request cache-cold pages instead of
	99	* trying to return cache-warm pages.
	100	*
	101	* %__GFP_DMA - Request memory from the DMA-capable zone.
	102	*
	103	* %__GFP_HIGH - This allocation has high priority and may use emergency pools.
	104	*
	105	* %__GFP_HIGHMEM - Allocated memory may be from highmem.
	106	*
	107	* %__GFP_NOFAIL - Indicate that this allocation is in no way allowed to fail
	108	* (think twice before using).
	109	*
	110	* %__GFP_NORETRY - If memory is not immediately available,
	111	* then give up at once.
	112	*
	113	* %__GFP_NOWARN - If allocation fails, don't issue any warnings.
	114	*
	115	* %__GFP_REPEAT - If allocation fails initially, try once more before failing.
	116	*/
dd0fc66f	117	static inline void *kmalloc(size_t size, gfp_t flags)
1da177e4 LT	118	{
	119	if (__builtin_constant_p(size)) {
	120	int i = 0;
	121	#define CACHE(x) \
	122	if (size <= x) \
	123	goto found; \
	124	else \
	125	i++;
	126	#include "kmalloc_sizes.h"
	127	#undef CACHE
	128	{
	129	extern void __you_cannot_kmalloc_that_much(void);
	130	__you_cannot_kmalloc_that_much();
	131	}
	132	found:
	133	return kmem_cache_alloc((flags & GFP_DMA) ?
	134	malloc_sizes[i].cs_dmacachep :
	135	malloc_sizes[i].cs_cachep, flags);
	136	}
	137	return __kmalloc(size, flags);
	138	}
	139
1d2c8eea CH	140	/*
	141	* kmalloc_track_caller is a special version of kmalloc that records the
	142	* calling function of the routine calling it for slab leak tracking instead
	143	* of just the calling function (confusing, eh?).
	144	* It's useful when the call to kmalloc comes from a widely-used standard
	145	* allocator where we care about the real place the memory allocation
	146	* request comes from.
	147	*/
	148	#ifndef CONFIG_DEBUG_SLAB
	149	#define kmalloc_track_caller(size, flags) \
	150	__kmalloc(size, flags)
	151	#else
	152	extern void __kmalloc_track_caller(size_t, gfp_t, void);
	153	#define kmalloc_track_caller(size, flags) \
	154	__kmalloc_track_caller(size, flags, __builtin_return_address(0))
	155	#endif
	156
40c07ae8 PE	157	extern void *__kzalloc(size_t, gfp_t);
40c07ae8 PE	158
800590f5 PD	159	/**
	160	* kzalloc - allocate memory. The memory is set to zero.
	161	* @size: how many bytes of memory are required.
	162	* @flags: the type of memory to allocate (see kmalloc).
	163	*/
40c07ae8 PE	164	static inline void *kzalloc(size_t size, gfp_t flags)
	165	{
	166	if (__builtin_constant_p(size)) {
	167	int i = 0;
	168	#define CACHE(x) \
	169	if (size <= x) \
	170	goto found; \
	171	else \
	172	i++;
	173	#include "kmalloc_sizes.h"
	174	#undef CACHE
	175	{
	176	extern void __you_cannot_kzalloc_that_much(void);
	177	__you_cannot_kzalloc_that_much();
	178	}
	179	found:
	180	return kmem_cache_zalloc((flags & GFP_DMA) ?
	181	malloc_sizes[i].cs_dmacachep :
	182	malloc_sizes[i].cs_cachep, flags);
	183	}
	184	return __kzalloc(size, flags);
	185	}
dd392710 PE	186
	187	/**
	188	* kcalloc - allocate memory for an array. The memory is set to zero.
	189	* @n: number of elements.
	190	* @size: element size.
	191	* @flags: the type of memory to allocate.
	192	*/
dd0fc66f	193	static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
dd392710	194	{
b50ec7d8	195	if (n != 0 && size > ULONG_MAX / n)
dd392710 PE	196	return NULL;
	197	return kzalloc(n * size, flags);
	198	}
	199
1da177e4 LT	200	extern void kfree(const void *);
1da177e4 LT	201	extern unsigned int ksize(const void *);
39d24e64	202	extern int slab_is_available(void);
1da177e4	203
97e2bde4	204	#ifdef CONFIG_NUMA
ebe29738	205	extern void kmem_cache_alloc_node(struct kmem_cache , gfp_t flags, int node);
dbe5e69d CH	206	extern void *__kmalloc_node(size_t size, gfp_t flags, int node);
	207
	208	static inline void *kmalloc_node(size_t size, gfp_t flags, int node)
	209	{
	210	if (__builtin_constant_p(size)) {
	211	int i = 0;
	212	#define CACHE(x) \
	213	if (size <= x) \
	214	goto found; \
	215	else \
	216	i++;
	217	#include "kmalloc_sizes.h"
	218	#undef CACHE
	219	{
	220	extern void __you_cannot_kmalloc_that_much(void);
	221	__you_cannot_kmalloc_that_much();
	222	}
	223	found:
	224	return kmem_cache_alloc_node((flags & GFP_DMA) ?
	225	malloc_sizes[i].cs_dmacachep :
	226	malloc_sizes[i].cs_cachep, flags, node);
	227	}
	228	return __kmalloc_node(size, flags, node);
	229	}
8b98c169 CH	230
	231	/*
	232	* kmalloc_node_track_caller is a special version of kmalloc_node that
	233	* records the calling function of the routine calling it for slab leak
	234	* tracking instead of just the calling function (confusing, eh?).
	235	* It's useful when the call to kmalloc_node comes from a widely-used
	236	* standard allocator where we care about the real place the memory
	237	* allocation request comes from.
	238	*/
	239	#ifndef CONFIG_DEBUG_SLAB
	240	#define kmalloc_node_track_caller(size, flags, node) \
	241	__kmalloc_node(size, flags, node)
97e2bde4	242	#else
8b98c169 CH	243	extern void __kmalloc_node_track_caller(size_t, gfp_t, int, void );
	244	#define kmalloc_node_track_caller(size, flags, node) \
	245	__kmalloc_node_track_caller(size, flags, node, \
	246	__builtin_return_address(0))
	247	#endif
	248	#else /* CONFIG_NUMA */
ebe29738 CL	249	static inline void kmem_cache_alloc_node(struct kmem_cache cachep,
ebe29738 CL	250	gfp_t flags, int node)
97e2bde4 MS	251	{
	252	return kmem_cache_alloc(cachep, flags);
	253	}
dd0fc66f	254	static inline void *kmalloc_node(size_t size, gfp_t flags, int node)
97e2bde4 MS	255	{
	256	return kmalloc(size, flags);
	257	}
8b98c169 CH	258
	259	#define kmalloc_node_track_caller(size, flags, node) \
	260	kmalloc_track_caller(size, flags)
97e2bde4 MS	261	#endif
97e2bde4 MS	262
1da177e4	263	extern int FASTCALL(kmem_cache_reap(int));
ebe29738	264	extern int FASTCALL(kmem_ptr_validate(struct kmem_cache cachep, void ptr));
1da177e4	265
10cef602 MM	266	#else /* CONFIG_SLOB */
	267
	268	/* SLOB allocator routines */
	269
	270	void kmem_cache_init(void);
10cef602 MM	271	struct kmem_cache kmem_cache_create(const char c, size_t, size_t,
	272	unsigned long,
	273	void ()(void , struct kmem_cache *, unsigned long),
	274	void ()(void , struct kmem_cache *, unsigned long));
133d205a	275	void kmem_cache_destroy(struct kmem_cache *c);
10cef602	276	void kmem_cache_alloc(struct kmem_cache c, gfp_t flags);
a8c0f9a4	277	void kmem_cache_zalloc(struct kmem_cache , gfp_t);
10cef602 MM	278	void kmem_cache_free(struct kmem_cache c, void b);
	279	const char kmem_cache_name(struct kmem_cache );
	280	void *kmalloc(size_t size, gfp_t flags);
40c07ae8	281	void *__kzalloc(size_t size, gfp_t flags);
10cef602 MM	282	void kfree(const void *m);
	283	unsigned int ksize(const void *m);
	284	unsigned int kmem_cache_size(struct kmem_cache *c);
	285
	286	static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
	287	{
40c07ae8	288	return __kzalloc(n * size, flags);
10cef602 MM	289	}
	290
	291	#define kmem_cache_shrink(d) (0)
	292	#define kmem_cache_reap(a)
	293	#define kmem_ptr_validate(a, b) (0)
	294	#define kmem_cache_alloc_node(c, f, n) kmem_cache_alloc(c, f)
	295	#define kmalloc_node(s, f, n) kmalloc(s, f)
40c07ae8	296	#define kzalloc(s, f) __kzalloc(s, f)
1d2c8eea	297	#define kmalloc_track_caller kmalloc
10cef602	298
8b98c169 CH	299	#define kmalloc_node_track_caller kmalloc_node
8b98c169 CH	300
10cef602 MM	301	#endif /* CONFIG_SLOB */
10cef602 MM	302
1da177e4 LT	303	#endif /* __KERNEL__ */
	304
	305	#endif /* _LINUX_SLAB_H */