[deliverable/linux.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

#if	defined(__KERNEL__)

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

#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 */

/* flags for kmem_cache_alloc() */
#define	SLAB_NOFS		GFP_NOFS
#define	SLAB_NOIO		GFP_NOIO
#define	SLAB_ATOMIC		GFP_ATOMIC
#define	SLAB_USER		GFP_USER
#define	SLAB_KERNEL		GFP_KERNEL
#define	SLAB_DMA		GFP_DMA

#define SLAB_LEVEL_MASK		GFP_LEVEL_MASK

#define	SLAB_NO_GROW		__GFP_NO_GROW	/* don't grow a cache */

/* 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
	10	#if defined(__KERNEL__)
	11
ebe29738	12	/* kmem_cache_t exists for legacy reasons and is not used by code in mm */
2109a2d1	13	typedef struct kmem_cache kmem_cache_t;
1da177e4	14
1da177e4 LT	15	#include <linux/gfp.h>
	16	#include <linux/init.h>
	17	#include <linux/types.h>
	18	#include <asm/page.h> /* kmalloc_sizes.h needs PAGE_SIZE */
	19	#include <asm/cache.h> /* kmalloc_sizes.h needs L1_CACHE_BYTES */
	20
	21	/* flags for kmem_cache_alloc() */
	22	#define SLAB_NOFS GFP_NOFS
	23	#define SLAB_NOIO GFP_NOIO
	24	#define SLAB_ATOMIC GFP_ATOMIC
	25	#define SLAB_USER GFP_USER
	26	#define SLAB_KERNEL GFP_KERNEL
	27	#define SLAB_DMA GFP_DMA
	28
	29	#define SLAB_LEVEL_MASK GFP_LEVEL_MASK
	30
	31	#define SLAB_NO_GROW __GFP_NO_GROW /* don't grow a cache */
	32
	33	/* flags to pass to kmem_cache_create().
	34	* The first 3 are only valid when the allocator as been build
	35	* SLAB_DEBUG_SUPPORT.
	36	*/
	37	#define SLAB_DEBUG_FREE 0x00000100UL /* Peform (expensive) checks on free */
	38	#define SLAB_DEBUG_INITIAL 0x00000200UL /* Call constructor (as verifier) */
	39	#define SLAB_RED_ZONE 0x00000400UL /* Red zone objs in a cache */
	40	#define SLAB_POISON 0x00000800UL /* Poison objects */
1da177e4 LT	41	#define SLAB_HWCACHE_ALIGN 0x00002000UL /* align objs on a h/w cache lines */
	42	#define SLAB_CACHE_DMA 0x00004000UL /* use GFP_DMA memory */
	43	#define SLAB_MUST_HWCACHE_ALIGN 0x00008000UL /* force alignment */
	44	#define SLAB_STORE_USER 0x00010000UL /* store the last owner for bug hunting */
	45	#define SLAB_RECLAIM_ACCOUNT 0x00020000UL /* track pages allocated to indicate
	46	what is reclaimable later*/
	47	#define SLAB_PANIC 0x00040000UL /* panic if kmem_cache_create() fails */
	48	#define SLAB_DESTROY_BY_RCU 0x00080000UL /* defer freeing pages to RCU */
101a5001	49	#define SLAB_MEM_SPREAD 0x00100000UL /* Spread some memory over cpuset */
1da177e4 LT	50
	51	/* flags passed to a constructor func */
	52	#define SLAB_CTOR_CONSTRUCTOR 0x001UL /* if not set, then deconstructor */
	53	#define SLAB_CTOR_ATOMIC 0x002UL /* tell constructor it can't sleep */
	54	#define SLAB_CTOR_VERIFY 0x004UL /* tell constructor it's a verify call */
	55
10cef602 MM	56	#ifndef CONFIG_SLOB
10cef602 MM	57
1da177e4 LT	58	/* prototypes */
	59	extern void __init kmem_cache_init(void);
	60
ebe29738 CL	61	extern struct kmem_cache kmem_cache_create(const char , size_t, size_t,
	62	unsigned long,
	63	void ()(void , struct kmem_cache *, unsigned long),
	64	void ()(void , struct kmem_cache *, unsigned long));
	65	extern void kmem_cache_destroy(struct kmem_cache *);
	66	extern int kmem_cache_shrink(struct kmem_cache *);
	67	extern void kmem_cache_alloc(struct kmem_cache , gfp_t);
a8c0f9a4	68	extern void kmem_cache_zalloc(struct kmem_cache , gfp_t);
ebe29738 CL	69	extern void kmem_cache_free(struct kmem_cache , void );
	70	extern unsigned int kmem_cache_size(struct kmem_cache *);
	71	extern const char kmem_cache_name(struct kmem_cache );
1da177e4 LT	72
	73	/* Size description struct for general caches. */
	74	struct cache_sizes {
ebe29738 CL	75	size_t cs_size;
	76	struct kmem_cache *cs_cachep;
	77	struct kmem_cache *cs_dmacachep;
1da177e4 LT	78	};
1da177e4 LT	79	extern struct cache_sizes malloc_sizes[];
7fd6b141	80
dd0fc66f	81	extern void *__kmalloc(size_t, gfp_t);
1da177e4	82
800590f5 PD	83	/**
	84	* kmalloc - allocate memory
	85	* @size: how many bytes of memory are required.
	86	* @flags: the type of memory to allocate.
	87	*
	88	* kmalloc is the normal method of allocating memory
	89	* in the kernel.
	90	*
	91	* The @flags argument may be one of:
	92	*
	93	* %GFP_USER - Allocate memory on behalf of user. May sleep.
	94	*
	95	* %GFP_KERNEL - Allocate normal kernel ram. May sleep.
	96	*
	97	* %GFP_ATOMIC - Allocation will not sleep.
	98	* For example, use this inside interrupt handlers.
	99	*
	100	* %GFP_HIGHUSER - Allocate pages from high memory.
	101	*
	102	* %GFP_NOIO - Do not do any I/O at all while trying to get memory.
	103	*
	104	* %GFP_NOFS - Do not make any fs calls while trying to get memory.
	105	*
	106	* Also it is possible to set different flags by OR'ing
	107	* in one or more of the following additional @flags:
	108	*
	109	* %__GFP_COLD - Request cache-cold pages instead of
	110	* trying to return cache-warm pages.
	111	*
	112	* %__GFP_DMA - Request memory from the DMA-capable zone.
	113	*
	114	* %__GFP_HIGH - This allocation has high priority and may use emergency pools.
	115	*
	116	* %__GFP_HIGHMEM - Allocated memory may be from highmem.
	117	*
	118	* %__GFP_NOFAIL - Indicate that this allocation is in no way allowed to fail
	119	* (think twice before using).
	120	*
	121	* %__GFP_NORETRY - If memory is not immediately available,
	122	* then give up at once.
	123	*
	124	* %__GFP_NOWARN - If allocation fails, don't issue any warnings.
	125	*
	126	* %__GFP_REPEAT - If allocation fails initially, try once more before failing.
	127	*/
dd0fc66f	128	static inline void *kmalloc(size_t size, gfp_t flags)
1da177e4 LT	129	{
	130	if (__builtin_constant_p(size)) {
	131	int i = 0;
	132	#define CACHE(x) \
	133	if (size <= x) \
	134	goto found; \
	135	else \
	136	i++;
	137	#include "kmalloc_sizes.h"
	138	#undef CACHE
	139	{
	140	extern void __you_cannot_kmalloc_that_much(void);
	141	__you_cannot_kmalloc_that_much();
	142	}
	143	found:
	144	return kmem_cache_alloc((flags & GFP_DMA) ?
	145	malloc_sizes[i].cs_dmacachep :
	146	malloc_sizes[i].cs_cachep, flags);
	147	}
	148	return __kmalloc(size, flags);
	149	}
	150
1d2c8eea CH	151	/*
	152	* kmalloc_track_caller is a special version of kmalloc that records the
	153	* calling function of the routine calling it for slab leak tracking instead
	154	* of just the calling function (confusing, eh?).
	155	* It's useful when the call to kmalloc comes from a widely-used standard
	156	* allocator where we care about the real place the memory allocation
	157	* request comes from.
	158	*/
	159	#ifndef CONFIG_DEBUG_SLAB
	160	#define kmalloc_track_caller(size, flags) \
	161	__kmalloc(size, flags)
	162	#else
	163	extern void __kmalloc_track_caller(size_t, gfp_t, void);
	164	#define kmalloc_track_caller(size, flags) \
	165	__kmalloc_track_caller(size, flags, __builtin_return_address(0))
	166	#endif
	167
40c07ae8 PE	168	extern void *__kzalloc(size_t, gfp_t);
40c07ae8 PE	169
800590f5 PD	170	/**
	171	* kzalloc - allocate memory. The memory is set to zero.
	172	* @size: how many bytes of memory are required.
	173	* @flags: the type of memory to allocate (see kmalloc).
	174	*/
40c07ae8 PE	175	static inline void *kzalloc(size_t size, gfp_t flags)
	176	{
	177	if (__builtin_constant_p(size)) {
	178	int i = 0;
	179	#define CACHE(x) \
	180	if (size <= x) \
	181	goto found; \
	182	else \
	183	i++;
	184	#include "kmalloc_sizes.h"
	185	#undef CACHE
	186	{
	187	extern void __you_cannot_kzalloc_that_much(void);
	188	__you_cannot_kzalloc_that_much();
	189	}
	190	found:
	191	return kmem_cache_zalloc((flags & GFP_DMA) ?
	192	malloc_sizes[i].cs_dmacachep :
	193	malloc_sizes[i].cs_cachep, flags);
	194	}
	195	return __kzalloc(size, flags);
	196	}
dd392710 PE	197
	198	/**
	199	* kcalloc - allocate memory for an array. The memory is set to zero.
	200	* @n: number of elements.
	201	* @size: element size.
	202	* @flags: the type of memory to allocate.
	203	*/
dd0fc66f	204	static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
dd392710	205	{
b50ec7d8	206	if (n != 0 && size > ULONG_MAX / n)
dd392710 PE	207	return NULL;
	208	return kzalloc(n * size, flags);
	209	}
	210
1da177e4 LT	211	extern void kfree(const void *);
1da177e4 LT	212	extern unsigned int ksize(const void *);
39d24e64	213	extern int slab_is_available(void);
1da177e4	214
97e2bde4	215	#ifdef CONFIG_NUMA
ebe29738	216	extern void kmem_cache_alloc_node(struct kmem_cache , gfp_t flags, int node);
dbe5e69d CH	217	extern void *__kmalloc_node(size_t size, gfp_t flags, int node);
	218
	219	static inline void *kmalloc_node(size_t size, gfp_t flags, int node)
	220	{
	221	if (__builtin_constant_p(size)) {
	222	int i = 0;
	223	#define CACHE(x) \
	224	if (size <= x) \
	225	goto found; \
	226	else \
	227	i++;
	228	#include "kmalloc_sizes.h"
	229	#undef CACHE
	230	{
	231	extern void __you_cannot_kmalloc_that_much(void);
	232	__you_cannot_kmalloc_that_much();
	233	}
	234	found:
	235	return kmem_cache_alloc_node((flags & GFP_DMA) ?
	236	malloc_sizes[i].cs_dmacachep :
	237	malloc_sizes[i].cs_cachep, flags, node);
	238	}
	239	return __kmalloc_node(size, flags, node);
	240	}
8b98c169 CH	241
	242	/*
	243	* kmalloc_node_track_caller is a special version of kmalloc_node that
	244	* records the calling function of the routine calling it for slab leak
	245	* tracking instead of just the calling function (confusing, eh?).
	246	* It's useful when the call to kmalloc_node comes from a widely-used
	247	* standard allocator where we care about the real place the memory
	248	* allocation request comes from.
	249	*/
	250	#ifndef CONFIG_DEBUG_SLAB
	251	#define kmalloc_node_track_caller(size, flags, node) \
	252	__kmalloc_node(size, flags, node)
97e2bde4	253	#else
8b98c169 CH	254	extern void __kmalloc_node_track_caller(size_t, gfp_t, int, void );
	255	#define kmalloc_node_track_caller(size, flags, node) \
	256	__kmalloc_node_track_caller(size, flags, node, \
	257	__builtin_return_address(0))
	258	#endif
	259	#else /* CONFIG_NUMA */
ebe29738 CL	260	static inline void kmem_cache_alloc_node(struct kmem_cache cachep,
ebe29738 CL	261	gfp_t flags, int node)
97e2bde4 MS	262	{
	263	return kmem_cache_alloc(cachep, flags);
	264	}
dd0fc66f	265	static inline void *kmalloc_node(size_t size, gfp_t flags, int node)
97e2bde4 MS	266	{
	267	return kmalloc(size, flags);
	268	}
8b98c169 CH	269
	270	#define kmalloc_node_track_caller(size, flags, node) \
	271	kmalloc_track_caller(size, flags)
97e2bde4 MS	272	#endif
97e2bde4 MS	273
1da177e4	274	extern int FASTCALL(kmem_cache_reap(int));
ebe29738	275	extern int FASTCALL(kmem_ptr_validate(struct kmem_cache cachep, void ptr));
1da177e4	276
10cef602 MM	277	#else /* CONFIG_SLOB */
	278
	279	/* SLOB allocator routines */
	280
	281	void kmem_cache_init(void);
10cef602 MM	282	struct kmem_cache kmem_cache_create(const char c, size_t, size_t,
	283	unsigned long,
	284	void ()(void , struct kmem_cache *, unsigned long),
	285	void ()(void , struct kmem_cache *, unsigned long));
133d205a	286	void kmem_cache_destroy(struct kmem_cache *c);
10cef602	287	void kmem_cache_alloc(struct kmem_cache c, gfp_t flags);
a8c0f9a4	288	void kmem_cache_zalloc(struct kmem_cache , gfp_t);
10cef602 MM	289	void kmem_cache_free(struct kmem_cache c, void b);
	290	const char kmem_cache_name(struct kmem_cache );
	291	void *kmalloc(size_t size, gfp_t flags);
40c07ae8	292	void *__kzalloc(size_t size, gfp_t flags);
10cef602 MM	293	void kfree(const void *m);
	294	unsigned int ksize(const void *m);
	295	unsigned int kmem_cache_size(struct kmem_cache *c);
	296
	297	static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
	298	{
40c07ae8	299	return __kzalloc(n * size, flags);
10cef602 MM	300	}
	301
	302	#define kmem_cache_shrink(d) (0)
	303	#define kmem_cache_reap(a)
	304	#define kmem_ptr_validate(a, b) (0)
	305	#define kmem_cache_alloc_node(c, f, n) kmem_cache_alloc(c, f)
	306	#define kmalloc_node(s, f, n) kmalloc(s, f)
40c07ae8	307	#define kzalloc(s, f) __kzalloc(s, f)
1d2c8eea	308	#define kmalloc_track_caller kmalloc
10cef602	309
8b98c169 CH	310	#define kmalloc_node_track_caller kmalloc_node
8b98c169 CH	311
10cef602 MM	312	#endif /* CONFIG_SLOB */
10cef602 MM	313
1da177e4 LT	314	#endif /* __KERNEL__ */
	315
	316	#endif /* _LINUX_SLAB_H */