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Date: Wed, 13 Oct 2010 13:59:03 +0900 From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> To: "linux-mm@...ck.org" <linux-mm@...ck.org> Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>, stable@...nel.org Subject: [BUGFIX][PATCH] fix return value of scan_lru_pages in memory unplug CC'ed to stable tree...maybe all kernel has this bug. But this may not very critical because we've got no report until now. == From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> 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 <kosaki.motohiro@...fujitsu.com> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> --- mm/memory_hotplug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: mmotm-1008/mm/memory_hotplug.c =================================================================== --- mmotm-1008.orig/mm/memory_hotplug.c +++ mmotm-1008/mm/memory_hotplug.c @@ -646,7 +646,7 @@ static int test_pages_in_a_zone(unsigned * 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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