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97d06609 CL |
1 | #ifndef MM_SLAB_H |
2 | #define MM_SLAB_H | |
3 | /* | |
4 | * Internal slab definitions | |
5 | */ | |
6 | ||
7 | /* | |
8 | * State of the slab allocator. | |
9 | * | |
10 | * This is used to describe the states of the allocator during bootup. | |
11 | * Allocators use this to gradually bootstrap themselves. Most allocators | |
12 | * have the problem that the structures used for managing slab caches are | |
13 | * allocated from slab caches themselves. | |
14 | */ | |
15 | enum slab_state { | |
16 | DOWN, /* No slab functionality yet */ | |
17 | PARTIAL, /* SLUB: kmem_cache_node available */ | |
18 | PARTIAL_ARRAYCACHE, /* SLAB: kmalloc size for arraycache available */ | |
19 | PARTIAL_L3, /* SLAB: kmalloc size for l3 struct available */ | |
20 | UP, /* Slab caches usable but not all extras yet */ | |
21 | FULL /* Everything is working */ | |
22 | }; | |
23 | ||
24 | extern enum slab_state slab_state; | |
25 | ||
18004c5d CL |
26 | /* The slab cache mutex protects the management structures during changes */ |
27 | extern struct mutex slab_mutex; | |
9b030cb8 CL |
28 | |
29 | /* The list of all slab caches on the system */ | |
18004c5d CL |
30 | extern struct list_head slab_caches; |
31 | ||
9b030cb8 CL |
32 | /* The slab cache that manages slab cache information */ |
33 | extern struct kmem_cache *kmem_cache; | |
34 | ||
35 | /* Functions provided by the slab allocators */ | |
8a13a4cc | 36 | extern int __kmem_cache_create(struct kmem_cache *, unsigned long flags); |
97d06609 | 37 | |
cbb79694 CL |
38 | #ifdef CONFIG_SLUB |
39 | struct kmem_cache *__kmem_cache_alias(const char *name, size_t size, | |
40 | size_t align, unsigned long flags, void (*ctor)(void *)); | |
41 | #else | |
42 | static inline struct kmem_cache *__kmem_cache_alias(const char *name, size_t size, | |
43 | size_t align, unsigned long flags, void (*ctor)(void *)) | |
44 | { return NULL; } | |
45 | #endif | |
46 | ||
47 | ||
945cf2b6 | 48 | int __kmem_cache_shutdown(struct kmem_cache *); |
945cf2b6 | 49 | |
97d06609 | 50 | #endif |