diff options
| author | Konstantin Khlebnikov <khlebnikov@openvz.org> | 2012-01-10 15:07:04 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-10 16:30:41 -0800 |
| commit | cc59850ef940e4ee6a765d28b439b9bafe07cf63 (patch) | |
| tree | 03b666986e9cc7dfc113a14721c44aa9e149f871 /include/linux/gfp.h | |
| parent | c909e99364c8b6ca07864d752950b6b4ecf6bef4 (diff) | |
| download | lwn-cc59850ef940e4ee6a765d28b439b9bafe07cf63.tar.gz lwn-cc59850ef940e4ee6a765d28b439b9bafe07cf63.zip | |
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.h | 1 |
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) |