From: Peter Zijlstra move macro's out of vmscan into the generic page replace header so the rest of the world can use them too. Signed-off-by: Peter Zijlstra include/linux/mm_page_replace.h | 30 ++++++++++++++++++++++++++++++ mm/vmscan.c | 30 ------------------------------ 2 files changed, 30 insertions(+), 30 deletions(-) Index: linux-2.6-uml/include/linux/mm_page_replace.h =================================================================== --- linux-2.6-uml.orig/include/linux/mm_page_replace.h 2006-01-23 16:26:04.000000000 +0100 +++ linux-2.6-uml/include/linux/mm_page_replace.h 2006-01-23 16:26:10.000000000 +0100 @@ -7,6 +7,36 @@ #include #include +#define lru_to_page(_head) (list_entry((_head)->prev, struct page, lru)) + +#ifdef ARCH_HAS_PREFETCH +#define prefetch_prev_lru_page(_page, _base, _field) \ + do { \ + if ((_page)->lru.prev != _base) { \ + struct page *prev; \ + \ + prev = lru_to_page(&(_page->lru)); \ + prefetch(&prev->_field); \ + } \ + } while (0) +#else +#define prefetch_prev_lru_page(_page, _base, _field) do { } while (0) +#endif + +#ifdef ARCH_HAS_PREFETCHW +#define prefetchw_prev_lru_page(_page, _base, _field) \ + do { \ + if ((_page)->lru.prev != _base) { \ + struct page *prev; \ + \ + prev = lru_to_page(&(_page->lru)); \ + prefetchw(&prev->_field); \ + } \ + } while (0) +#else +#define prefetchw_prev_lru_page(_page, _base, _field) do { } while (0) +#endif + /* void page_replace_hint_active(struct page *); */ /* void page_replace_hint_use_once(struct page *); */ extern void fastcall page_replace_add(struct page *); Index: linux-2.6-uml/mm/vmscan.c =================================================================== --- linux-2.6-uml.orig/mm/vmscan.c 2006-01-23 16:26:04.000000000 +0100 +++ linux-2.6-uml/mm/vmscan.c 2006-01-23 16:26:10.000000000 +0100 @@ -88,36 +88,6 @@ long nr; /* objs pending delete */ }; -#define lru_to_page(_head) (list_entry((_head)->prev, struct page, lru)) - -#ifdef ARCH_HAS_PREFETCH -#define prefetch_prev_lru_page(_page, _base, _field) \ - do { \ - if ((_page)->lru.prev != _base) { \ - struct page *prev; \ - \ - prev = lru_to_page(&(_page->lru)); \ - prefetch(&prev->_field); \ - } \ - } while (0) -#else -#define prefetch_prev_lru_page(_page, _base, _field) do { } while (0) -#endif - -#ifdef ARCH_HAS_PREFETCHW -#define prefetchw_prev_lru_page(_page, _base, _field) \ - do { \ - if ((_page)->lru.prev != _base) { \ - struct page *prev; \ - \ - prev = lru_to_page(&(_page->lru)); \ - prefetchw(&prev->_field); \ - } \ - } while (0) -#else -#define prefetchw_prev_lru_page(_page, _base, _field) do { } while (0) -#endif - /* * From 0 .. 100. Higher means more swappy. */