From 76faf361cd7b76435137a99461df60a7d0b7c550 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Tue, 26 Oct 2010 14:21:10 -0700 Subject: mm: fix return value of scan_lru_pages in memory unplug commit f8f72ad5396987e05a42cf7eff826fb2a15ff148 upstream. scan_lru_pages returns pfn. So, it's type should be "unsigned long" not "int". Note: I guess this has been work until now because memory hotplug tester's machine has not very big memory.... physical address < 32bit << PAGE_SHIFT. Reported-by: KOSAKI Motohiro Signed-off-by: KAMEZAWA Hiroyuki Reviewed-by: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- mm/memory_hotplug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'mm') diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 6d27a5b625f..f4be4649d59 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -626,7 +626,7 @@ static int test_pages_in_a_zone(unsigned long start_pfn, unsigned long end_pfn) * Scanning pfn is much easier than scanning lru list. * Scan pfn from start to end and Find LRU page. */ -int scan_lru_pages(unsigned long start, unsigned long end) +unsigned long scan_lru_pages(unsigned long start, unsigned long end) { unsigned long pfn; struct page *page; -- cgit v1.2.3-18-g5258