From cc59850ef940e4ee6a765d28b439b9bafe07cf63 Mon Sep 17 00:00:00 2001 From: Konstantin Khlebnikov Date: Tue, 10 Jan 2012 15:07:04 -0800 Subject: mm: add free_hot_cold_page_list() helper This patch adds helper free_hot_cold_page_list() to free list of 0-order pages. It frees pages directly from list without temporary page-vector. It also calls trace_mm_pagevec_free() to simulate pagevec_free() behaviour. bloat-o-meter: add/remove: 1/1 grow/shrink: 1/3 up/down: 267/-295 (-28) function old new delta free_hot_cold_page_list - 264 +264 get_page_from_freelist 2129 2132 +3 __pagevec_free 243 239 -4 split_free_page 380 373 -7 release_pages 606 510 -96 free_page_list 188 - -188 Signed-off-by: Konstantin Khlebnikov Cc: Mel Gorman Cc: KOSAKI Motohiro Acked-by: Minchan Kim Acked-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/gfp.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/gfp.h') diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 3a76faf6a3ee..656295865d58 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -358,6 +358,7 @@ void *alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask); extern void __free_pages(struct page *page, unsigned int order); extern void free_pages(unsigned long addr, unsigned int order); extern void free_hot_cold_page(struct page *page, int cold); +extern void free_hot_cold_page_list(struct list_head *list, int cold); #define __free_page(page) __free_pages((page), 0) #define free_page(addr) free_pages((addr), 0) -- cgit v1.2.3