linux-kernel - [PATCH 1/2] ensure we count pages transitioning inactive via clear_active

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Date:	Thu, 02 Aug 2007 19:18:12 +0100
From:	Andy Whitcroft <apw@...dowen.org>
To:	Andrew Morton <akpm@...l.org>
Cc:	Mel Gorman <mel@....ul.ie>, Andy Whitcroft <apw@...dowen.org>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] ensure we count pages transitioning inactive via clear_active_flags


We are transitioning pages from active to inactive in
clear_active_flags, those need counting as PGDEACTIVATE vm events.

Signed-off-by: Andy Whitcroft <apw@...dowen.org>
Acked-by: Mel Gorman <mel@....ul.ie>
---
 mm/vmscan.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index d419e10..99ec7fa 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -777,6 +777,7 @@ static unsigned long shrink_inactive_list(unsigned long max_scan,
 			     (sc->order > PAGE_ALLOC_COSTLY_ORDER)?
 					     ISOLATE_BOTH : ISOLATE_INACTIVE);
 		nr_active = clear_active_flags(&page_list);
+		__count_vm_events(PGDEACTIVATE, nr_active);
 
 		__mod_zone_page_state(zone, NR_ACTIVE, -nr_active);
 		__mod_zone_page_state(zone, NR_INACTIVE,
-
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