| 39,9 → 39,10 |
|---|
| |
| #define ONE_FRAME 0 |
| |
| #define FRAME_KA 1 /* skip frames conflicting with user address space */ |
| #define FRAME_PANIC 2 /* panic on failure */ |
| #define FRAME_ATOMIC 4 /* do not panic and do not sleep on failure */ |
| #define FRAME_KA 0x1 /* skip frames conflicting with user address space */ |
| #define FRAME_PANIC 0x2 /* panic on failure */ |
| #define FRAME_ATOMIC 0x4 /* do not panic and do not sleep on failure */ |
| #define FRAME_NO_RECLAIM 0x8 /* Do not start reclaiming when no free memory */ |
| |
| #define FRAME_OK 0 /* frame_alloc return status */ |
| #define FRAME_NO_MEMORY 1 /* frame_alloc return status */ |
| 78,7 → 79,7 |
|---|
| count_t refcount; /**< tracking of shared frames */ |
| __u8 buddy_order; /**< buddy system block order */ |
| link_t buddy_link; /**< link to the next free block inside one order */ |
| slab_slab_t *slab; /**< If allocated by slab, this points there */ |
| void *parent; /**< If allocated by slab, this points there */ |
| }; |
| |
| struct region { |
| 100,7 → 101,7 |
|---|
| extern void frame_init(void); |
| extern void frame_initialize(frame_t *frame, zone_t *zone); |
| |
| __address frame_alloc(int flags, __u8 order, int * status); |
| __address frame_alloc(int flags, __u8 order, int * status, zone_t **pzone); |
| extern void frame_free(__address addr); |
| |
| zone_t * get_zone_by_frame(frame_t * frame); |
| 114,6 → 115,7 |
|---|
| void zone_buddy_set_order(buddy_system_t *b, link_t * block, __u8 order); |
| __u8 zone_buddy_get_order(buddy_system_t *b, link_t * block); |
| void zone_buddy_mark_busy(buddy_system_t *b, link_t * block); |
| extern frame_t * frame_addr2frame(__address addr); |
| |
| /* |
| * TODO: Implement the following functions. |