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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 | ||
26 | /* The slab cache mutex protects the management structures during changes */ | |
27 | extern struct mutex slab_mutex; | |
28 | extern struct list_head slab_caches; | |
29 | ||
30 | struct kmem_cache *__kmem_cache_create(const char *name, size_t size, | |
31 | size_t align, unsigned long flags, void (*ctor)(void *)); | |
32 | ||
33 | #endif |