From 4c84cacfa424264f7ad5287298d3ea4a3e935278 Mon Sep 17 00:00:00 2001
From: Nick Piggin <npiggin@suse.de>
Date: Wed, 22 Mar 2006 00:08:00 -0800
Subject: [PATCH] mm: PageActive no testset

PG_active is protected by zone->lru_lock, it does not need TestSet/TestClear
operations.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 mm/vmscan.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'mm/vmscan.c')

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 40fb378..8e477b1 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1280,8 +1280,9 @@ refill_inactive_zone(struct zone *zone, struct scan_control *sc)
 		prefetchw_prev_lru_page(page, &l_inactive, flags);
 		BUG_ON(PageLRU(page));
 		SetPageLRU(page);
-		if (!TestClearPageActive(page))
-			BUG();
+		BUG_ON(!PageActive(page));
+		ClearPageActive(page);
+
 		list_move(&page->lru, &zone->inactive_list);
 		pgmoved++;
 		if (!pagevec_add(&pvec, page)) {
-- 
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