diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2000-06-19 22:45:37 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2000-06-19 22:45:37 +0000 |
| commit | 6d403070f28cd44860fdb3a53be5da0275c65cf4 (patch) | |
| tree | 0d0e7fe7b5fb7568d19e11d7d862b77a866ce081 /include/linux/swap.h | |
| parent | ecf1bf5f6c2e668d03b0a9fb026db7aa41e292e1 (diff) | |
Merge with 2.4.0-test1-ac21 + pile of MIPS cleanups to make merging
possible. Chainsawed RM200 kernel to compile again. Jazz machine
status unknown.
Diffstat (limited to 'include/linux/swap.h')
| -rw-r--r-- | include/linux/swap.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index 9226ce0a5..5ee3b7b77 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -161,6 +161,16 @@ static inline int is_page_shared(struct page *page) extern spinlock_t pagemap_lru_lock; /* + * Magic constants for page aging. If the system is programmed + * right, tweaking these should have almost no effect... + * The 2.4 code, however, is mostly simple and stable ;) + */ +#define PG_AGE_MAX 64 +#define PG_AGE_START 2 +#define PG_AGE_ADV 3 +#define PG_AGE_DECL 1 + +/* * Helper macros for lru_pages handling. */ #define lru_cache_add(page) \ @@ -168,12 +178,16 @@ do { \ spin_lock(&pagemap_lru_lock); \ list_add(&(page)->lru, &lru_cache); \ nr_lru_pages++; \ + page->age = PG_AGE_START; \ + ClearPageReferenced(page); \ + SetPageActive(page); \ spin_unlock(&pagemap_lru_lock); \ } while (0) #define __lru_cache_del(page) \ do { \ list_del(&(page)->lru); \ + ClearPageActive(page); \ nr_lru_pages--; \ } while (0) |