| 56,13 → 56,19 |
|---|
| #define SLAB_MAX_BADNESS(cache) ((PAGE_SIZE << (cache)->order) >> 2) |
| |
| /* slab_reclaim constants */ |
| #define SLAB_RECLAIM_ALL 0x1 /**< Reclaim all possible memory, because we are in memory stress */ |
| |
| /** Reclaim all possible memory, because we are in memory stress */ |
| #define SLAB_RECLAIM_ALL 0x1 |
| |
| /* cache_create flags */ |
| #define SLAB_CACHE_NOMAGAZINE 0x1 /**< Do not use per-cpu cache */ |
| #define SLAB_CACHE_SLINSIDE 0x2 /**< Have control structure inside SLAB */ |
| #define SLAB_CACHE_MAGDEFERRED (0x4 | SLAB_CACHE_NOMAGAZINE) /**< We add magazine cache later, if we have this flag */ |
| |
| /** Do not use per-cpu cache */ |
| #define SLAB_CACHE_NOMAGAZINE 0x1 |
| /** Have control structure inside SLAB */ |
| #define SLAB_CACHE_SLINSIDE 0x2 |
| /** We add magazine cache later, if we have this flag */ |
| #define SLAB_CACHE_MAGDEFERRED (0x4 | SLAB_CACHE_NOMAGAZINE) |
| |
| typedef struct { |
| link_t link; |
| count_t busy; /**< Count of full slots in magazine */ |
| 81,12 → 87,17 |
|---|
| char *name; |
| |
| link_t link; |
| |
| /* Configuration */ |
| size_t size; /**< Size of slab position - align_up(sizeof(obj)) */ |
| /** Size of slab position - align_up(sizeof(obj)) */ |
| size_t size; |
| |
| int (*constructor)(void *obj, int kmflag); |
| int (*destructor)(void *obj); |
| int flags; /**< Flags changing behaviour of cache */ |
| |
| /** Flags changing behaviour of cache */ |
| int flags; |
| |
| /* Computed values */ |
| uint8_t order; /**< Order of frames to be allocated */ |
| int objects; /**< Number of objects that fit in */ |
| 95,7 → 106,8 |
|---|
| atomic_t allocated_slabs; |
| atomic_t allocated_objs; |
| atomic_t cached_objs; |
| atomic_t magazine_counter; /**< How many magazines in magazines list */ |
| /** How many magazines in magazines list */ |
| atomic_t magazine_counter; |
| |
| /* Slabs */ |
| link_t full_slabs; /**< List of full slabs */ |
| 109,12 → 121,9 |
|---|
| slab_mag_cache_t *mag_cache; |
| } slab_cache_t; |
| |
| extern slab_cache_t * slab_cache_create(char *name, |
| size_t size, |
| size_t align, |
| int (*constructor)(void *obj, int kmflag), |
| int (*destructor)(void *obj), |
| int flags); |
| extern slab_cache_t * slab_cache_create(char *name, size_t size, size_t align, |
| int (*constructor)(void *obj, int kmflag), int (*destructor)(void *obj), |
| int flags); |
| extern void slab_cache_destroy(slab_cache_t *cache); |
| |
| extern void * slab_alloc(slab_cache_t *cache, int flags); |
| 121,7 → 130,7 |
|---|
| extern void slab_free(slab_cache_t *cache, void *obj); |
| extern count_t slab_reclaim(int flags); |
| |
| /** Initialize slab subsytem */ |
| /* slab subsytem initialization */ |
| extern void slab_cache_init(void); |
| extern void slab_enable_cpucache(void); |
| |