| 34,12 → 34,13 |
|---|
| |
| #define BUDDY_SYSTEM_INNER_BLOCK 0xff |
| |
| /** Buddy system operations to be implemented by each implementations. */ |
| struct buddy_system_operations { |
| link_t *(* find_buddy)(link_t *); /**< Return pointer to left-side or right-side buddy for block passed as argument. */ |
| link_t *(* bisect)(link_t *); /**< Bisect the block passed as argument and return pointer to the new right-side buddy. */ |
| link_t *(* coalesce)(link_t *, link_t *); /**< Coalesce two buddies into a bigger block. */ |
| void (*set_order)(link_t *, __u8); /**< Set order of block passed as argument. */ |
| __u8 (*get_order)(link_t *); /**< Return order of block passed as argument. */ |
| link_t *(* find_buddy)(buddy_system_t *, link_t *); /**< Return pointer to left-side or right-side buddy for block passed as argument. */ |
| link_t *(* bisect)(buddy_system_t *, link_t *); /**< Bisect the block passed as argument and return pointer to the new right-side buddy. */ |
| link_t *(* coalesce)(buddy_system_t *, link_t *, link_t *); /**< Coalesce two buddies into a bigger block. */ |
| void (*set_order)(buddy_system_t *, link_t *, __u8); /**< Set order of block passed as argument. */ |
| __u8 (*get_order)(buddy_system_t *, link_t *); /**< Return order of block passed as argument. */ |
| }; |
| |
| struct buddy_system { |
| 46,9 → 47,10 |
|---|
| __u8 max_order; |
| link_t *order; |
| buddy_system_operations_t *op; |
| void *data; /**< Pointer to be used by the implementation. */ |
| }; |
| |
| extern buddy_system_t *buddy_system_create(__u8 max_order, buddy_system_operations_t *op); |
| extern buddy_system_t *buddy_system_create(__u8 max_order, buddy_system_operations_t *op, void *data); |
| extern link_t *buddy_system_alloc(buddy_system_t *b, __u8 i); |
| extern void buddy_system_free(buddy_system_t *b, link_t *block); |
| |