From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: kosaki.motohiro@jp.fujitsu.com, linux-mm <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 2/5] Kill unnecessary page flag test
Date: Thu, 16 Jul 2009 17:38:42 +0900 (JST) [thread overview]
Message-ID: <20090716173741.9D4E.A69D9226@jp.fujitsu.com> (raw)
In-Reply-To: <20090716173449.9D4B.A69D9226@jp.fujitsu.com>
Subject: [PATCH] Kill unnecessary page flag test
The page_lru() already evaluate PageActive() and PageSwapBacked(). We
don't need to re-evaluate it.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
---
mm/vmscan.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: b/mm/vmscan.c
===================================================================
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1160,8 +1160,8 @@ static unsigned long shrink_inactive_lis
SetPageLRU(page);
lru = page_lru(page);
add_page_to_lru_list(zone, page, lru);
- if (PageActive(page)) {
- int file = !!page_is_file_cache(page);
+ if (is_active_lru(lru)) {
+ int file = !!is_file_lru(lru);
reclaim_stat->recent_rotated[file]++;
}
if (!pagevec_add(&pvec, page)) {
--
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next prev parent reply other threads:[~2009-07-16 8:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-16 8:37 [PATCH 1/5] move ClearPageActive from move_active_pages() to shrink_active_list() KOSAKI Motohiro
2009-07-16 8:38 ` KOSAKI Motohiro [this message]
2009-07-16 8:39 ` [PATCH 3/5] Kill unnecessary prefetch KOSAKI Motohiro
2009-07-16 8:40 ` [PATCH 4/5] Use add_page_to_lru_list() helper function KOSAKI Motohiro
2009-07-17 12:18 ` Peter Zijlstra
2009-07-20 5:37 ` KOSAKI Motohiro
2009-07-20 7:28 ` Peter Zijlstra
2009-07-20 14:30 ` KOSAKI Motohiro
2009-07-16 8:40 ` [PATCH 5/5] move PGDEACTIVATE modification to shrink_active_list() KOSAKI Motohiro
2009-07-16 17:14 ` [PATCH 1/5] move ClearPageActive from move_active_pages() " Johannes Weiner
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