The patch titled
Subject: mm-fix-a-overflow-in-test_pages_in_a_zone-fix
has been added to the -mm tree. Its filename is
mm-fix-a-overflow-in-test_pages_in_a_zone-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-fix-a-overflow-in-test_pages_in_a_zone-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-fix-a-overflow-in-test_pages_in_a_zone-fix.patch
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------------------------------------------------------
From: "Kani, Toshimitsu" <toshi.kani@xxxxxxx>
Subject: mm-fix-a-overflow-in-test_pages_in_a_zone-fix
remove assumption that end_pfn is aligned by MAX_ORDER_NR_PAGES
Cc: zhong jiang <zhongjiang@xxxxxxxxxx>
Cc: Toshi Kani <toshi.kani@xxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory_hotplug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/memory_hotplug.c~mm-fix-a-overflow-in-test_pages_in_a_zone-fix mm/memory_hotplug.c
--- a/mm/memory_hotplug.c~mm-fix-a-overflow-in-test_pages_in_a_zone-fix
+++ a/mm/memory_hotplug.c
@@ -1512,7 +1512,7 @@ int test_pages_in_a_zone(unsigned long s
while ((i < MAX_ORDER_NR_PAGES) &&
!pfn_valid_within(pfn + i))
i++;
- if (i == MAX_ORDER_NR_PAGES)
+ if (i == MAX_ORDER_NR_PAGES || pfn + i >= end_pfn)
continue;
page = pfn_to_page(pfn + i);
if (zone && page_zone(page) != zone)
_
Patches currently in -mm which might be from toshi.kani@xxxxxxx are
mm-fix-a-overflow-in-test_pages_in_a_zone-fix.patch
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