diff options
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index d71ff763c9d..da8eb8ad9e9 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -24,6 +24,14 @@ #endif #define MAX_ORDER_NR_PAGES (1 << (MAX_ORDER - 1)) +/* + * PAGE_ALLOC_COSTLY_ORDER is the order at which allocations are deemed + * costly to service. That is between allocation orders which should + * coelesce naturally under reasonable reclaim pressure and those which + * will not. + */ +#define PAGE_ALLOC_COSTLY_ORDER 3 + struct free_area { struct list_head free_list; unsigned long nr_free; |