From: Konstantin Khlebnikov <khlebnikov@openvz.org>
Date: Thu, 8 Dec 2011 04:38:51 +0000 (+1100)
Subject: mm-add-free_hot_cold_page_list-helper-v3
X-Git-Tag: next-20111214~2^2~163
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ad9c9cd13fe4850f454a0b35567f7f3889152746;p=karo-tx-linux.git

mm-add-free_hot_cold_page_list-helper-v3

v3: Always free pages in reverse order.
    The most recently added struct page, the most likely to be hot.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/swap.c b/mm/swap.c
index bd4abc4991e8..67a09a633a09 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -619,7 +619,7 @@ void release_pages(struct page **pages, int nr, int cold)
 			del_page_from_lru(zone, page);
 		}
 
-		list_add_tail(&page->lru, &pages_to_free);
+		list_add(&page->lru, &pages_to_free);
 	}
 	if (zone)
 		spin_unlock_irqrestore(&zone->lru_lock, flags);