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| 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 /mm/vmscan.c | |
| parent | c909e99364c8b6ca07864d752950b6b4ecf6bef4 (diff) | |
| download | linux-stable-cc59850ef940e4ee6a765d28b439b9bafe07cf63.tar.gz linux-stable-cc59850ef940e4ee6a765d28b439b9bafe07cf63.tar.bz2 linux-stable-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 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 20 |
1 files changed, 1 insertions, 19 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 753a2dc300b9..3d571df41c79 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -734,24 +734,6 @@ static enum page_references page_check_references(struct page *page, return PAGEREF_RECLAIM; } -static noinline_for_stack void free_page_list(struct list_head *free_pages) -{ - struct pagevec freed_pvec; - struct page *page, *tmp; - - pagevec_init(&freed_pvec, 1); - - list_for_each_entry_safe(page, tmp, free_pages, lru) { - list_del(&page->lru); - if (!pagevec_add(&freed_pvec, page)) { - __pagevec_free(&freed_pvec); - pagevec_reinit(&freed_pvec); - } - } - - pagevec_free(&freed_pvec); -} - /* * shrink_page_list() returns the number of reclaimed pages */ @@ -1015,7 +997,7 @@ keep_lumpy: if (nr_dirty && nr_dirty == nr_congested && scanning_global_lru(sc)) zone_set_flag(zone, ZONE_CONGESTED); - free_page_list(&free_pages); + free_hot_cold_page_list(&free_pages, 1); list_splice(&ret_pages, page_list); count_vm_events(PGACTIVATE, pgactivate); |