Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | |
2 | static inline void | |
3 | add_page_to_active_list(struct zone *zone, struct page *page) | |
4 | { | |
5 | list_add(&page->lru, &zone->active_list); | |
6 | zone->nr_active++; | |
7 | } | |
8 | ||
9 | static inline void | |
10 | add_page_to_inactive_list(struct zone *zone, struct page *page) | |
11 | { | |
12 | list_add(&page->lru, &zone->inactive_list); | |
13 | zone->nr_inactive++; | |
14 | } | |
15 | ||
16 | static inline void | |
17 | del_page_from_active_list(struct zone *zone, struct page *page) | |
18 | { | |
19 | list_del(&page->lru); | |
20 | zone->nr_active--; | |
21 | } | |
22 | ||
23 | static inline void | |
24 | del_page_from_inactive_list(struct zone *zone, struct page *page) | |
25 | { | |
26 | list_del(&page->lru); | |
27 | zone->nr_inactive--; | |
28 | } | |
29 | ||
30 | static inline void | |
31 | del_page_from_lru(struct zone *zone, struct page *page) | |
32 | { | |
33 | list_del(&page->lru); | |
34 | if (PageActive(page)) { | |
35 | ClearPageActive(page); | |
36 | zone->nr_active--; | |
37 | } else { | |
38 | zone->nr_inactive--; | |
39 | } | |
40 | } | |
21eac81f CL |
41 | |
42 | /* | |
43 | * Isolate one page from the LRU lists. | |
44 | * | |
45 | * - zone->lru_lock must be held | |
46 | */ | |
47 | static inline int __isolate_lru_page(struct page *page) | |
48 | { | |
49 | if (unlikely(!TestClearPageLRU(page))) | |
50 | return 0; | |
51 | ||
52 | if (get_page_testone(page)) { | |
53 | /* | |
54 | * It is being freed elsewhere | |
55 | */ | |
56 | __put_page(page); | |
57 | SetPageLRU(page); | |
58 | return -ENOENT; | |
59 | } | |
60 | ||
61 | return 1; | |
62 | } |