From 4515460a4165d7d9f9fe8497ab5aefbab24c23bf Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Fri, 28 Sep 2012 10:19:38 +1000
Subject: [PATCH] mm-fix-tracing-in-free_pcppages_bulk-fix

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Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 76aff40ae9c3..a214abe436f9 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -667,7 +667,7 @@ static void free_pcppages_bulk(struct zone *zone, int count,
 			batch_free = to_free;
 
 		do {
-			int mt;
+			int mt;	/* migratetype of the to-be-freed page */
 
 			page = list_entry(list->prev, struct page, lru);
 			/* must delete as __free_one_page list manipulates */
-- 
2.39.2