| 545 | } |
| 546 | |
| 547 | static void _page_insert(rt_page_t *page_head, struct rt_page *p, |
| 548 | rt_uint32_t size_bits) |
| 549 | { |
| 550 | p->next = *page_head; |
| 551 | if (p->next) |
| 552 | { |
| 553 | p->next->pre = p; |
| 554 | } |
| 555 | p->pre = 0; |
| 556 | *page_head = p; |
| 557 | p->size_bits = size_bits; |
| 558 | } |
| 559 | |
| 560 | static void _pages_ref_inc(struct rt_page *p, rt_uint32_t size_bits) |
| 561 | { |