| 1 | /* $Id: slab.h 153 2000-07-23 16:21:57Z sandervl $ */
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| 2 |
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| 3 | /*
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| 4 | * linux/mm/slab.h
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| 5 | * Written by Mark Hemment, 1996.
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| 6 | * (markhe@nextd.demon.co.uk)
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| 7 | */
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| 8 |
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| 9 | #if !defined(_LINUX_SLAB_H)
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| 10 | #define _LINUX_SLAB_H
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| 11 |
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| 12 | #if defined(__KERNEL__)
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| 13 |
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| 14 | typedef struct kmem_cache_s kmem_cache_t;
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| 15 |
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| 16 | /* flags for kmem_cache_alloc() */
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| 17 | #define SLAB_BUFFER GFP_BUFFER
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| 18 | #define SLAB_ATOMIC GFP_ATOMIC
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| 19 | #define SLAB_USER GFP_USER
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| 20 | #define SLAB_KERNEL GFP_KERNEL
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| 21 | #define SLAB_NFS GFP_NFS
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| 22 | #define SLAB_DMA GFP_DMA
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| 23 |
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| 24 | #define SLAB_LEVEL_MASK 0x0000007fUL
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| 25 | #define SLAB_NO_GROW 0x00001000UL /* don't grow a cache */
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| 26 |
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| 27 | /* flags to pass to kmem_cache_create().
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| 28 | * The first 3 are only valid when the allocator as been build
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| 29 | * SLAB_DEBUG_SUPPORT.
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| 30 | */
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| 31 | #define SLAB_DEBUG_FREE 0x00000100UL /* Peform (expensive) checks on free */
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| 32 | #define SLAB_DEBUG_INITIAL 0x00000200UL /* Call constructor (as verifier) */
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| 33 | #define SLAB_RED_ZONE 0x00000400UL /* Red zone objs in a cache */
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| 34 | #define SLAB_POISON 0x00000800UL /* Poison objects */
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| 35 | #define SLAB_NO_REAP 0x00001000UL /* never reap from the cache */
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| 36 | #define SLAB_HWCACHE_ALIGN 0x00002000UL /* align objs on a h/w cache lines */
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| 37 | #if 0
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| 38 | #define SLAB_HIGH_PACK 0x00004000UL /* XXX */
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| 39 | #endif
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| 40 |
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| 41 | /* flags passed to a constructor func */
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| 42 | #define SLAB_CTOR_CONSTRUCTOR 0x001UL /* if not set, then deconstructor */
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| 43 | #define SLAB_CTOR_ATOMIC 0x002UL /* tell constructor it can't sleep */
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| 44 | #define SLAB_CTOR_VERIFY 0x004UL /* tell constructor it's a verify call */
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| 45 |
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| 46 | #endif /* __KERNEL__ */
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| 47 |
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| 48 | extern void *kmalloc(int, int);
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| 49 | extern void kfree(const void *);
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| 50 | extern void kfree_s(const void *, int);
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| 51 |
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| 52 | #endif /* _LINUX_SLAB_H */
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