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authorKonstantin Khlebnikov <khlebnikov@openvz.org>2012-01-10 15:07:04 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-10 16:30:41 -0800
commitcc59850ef940e4ee6a765d28b439b9bafe07cf63 (patch)
tree03b666986e9cc7dfc113a14721c44aa9e149f871 /include/linux/gfp.h
parentc909e99364c8b6ca07864d752950b6b4ecf6bef4 (diff)
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 <khlebnikov@openvz.org> Cc: Mel Gorman <mel@csn.ul.ie> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: Minchan Kim <minchan.kim@gmail.com> Acked-by: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/gfp.h')
-rw-r--r--include/linux/gfp.h1
1 files changed, 1 insertions, 0 deletions
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)