| #ifndef MM_SLAB_H |
| #define MM_SLAB_H |
| /* |
| * Internal slab definitions |
| */ |
| |
| /* |
| * State of the slab allocator. |
| * |
| * This is used to describe the states of the allocator during bootup. |
| * Allocators use this to gradually bootstrap themselves. Most allocators |
| * have the problem that the structures used for managing slab caches are |
| * allocated from slab caches themselves. |
| */ |
| enum slab_state { |
| DOWN, /* No slab functionality yet */ |
| PARTIAL, /* SLUB: kmem_cache_node available */ |
| PARTIAL_ARRAYCACHE, /* SLAB: kmalloc size for arraycache available */ |
| PARTIAL_L3, /* SLAB: kmalloc size for l3 struct available */ |
| UP, /* Slab caches usable but not all extras yet */ |
| FULL /* Everything is working */ |
| }; |
| |
| extern enum slab_state slab_state; |
| |
| /* The slab cache mutex protects the management structures during changes */ |
| extern struct mutex slab_mutex; |
| |
| /* The list of all slab caches on the system */ |
| extern struct list_head slab_caches; |
| |
| /* The slab cache that manages slab cache information */ |
| extern struct kmem_cache *kmem_cache; |
| |
| /* Functions provided by the slab allocators */ |
| extern int __kmem_cache_create(struct kmem_cache *, unsigned long flags); |
| |
| #ifdef CONFIG_SLUB |
| struct kmem_cache *__kmem_cache_alias(const char *name, size_t size, |
| size_t align, unsigned long flags, void (*ctor)(void *)); |
| #else |
| static inline struct kmem_cache *__kmem_cache_alias(const char *name, size_t size, |
| size_t align, unsigned long flags, void (*ctor)(void *)) |
| { return NULL; } |
| #endif |
| |
| |
| int __kmem_cache_shutdown(struct kmem_cache *); |
| |
| struct seq_file; |
| struct file; |
| int slabinfo_show(struct seq_file *m, void *p); |
| |
| ssize_t slabinfo_write(struct file *file, const char __user *buffer, |
| size_t count, loff_t *ppos); |
| #endif |