From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx200.postini.com [74.125.245.200]) by kanga.kvack.org (Postfix) with SMTP id 9E06D6B0062 for ; Mon, 18 Mar 2013 07:11:44 -0400 (EDT) From: Lin Feng Subject: [PATCH] x86: mm: add_pfn_range_mapped: use meaningful index to teach clean_sort_range() Date: Mon, 18 Mar 2013 18:21:33 +0800 Message-Id: <1363602093-11965-1-git-send-email-linfeng@cn.fujitsu.com> Sender: owner-linux-mm@kvack.org List-ID: To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, x86@kernel.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, yinghai@kernel.org, penberg@kernel.org, jacob.shin@amd.com, Lin Feng Since add_range_with_merge() return the max none zero element of the array, it's suffice to use it to instruct clean_sort_range() to do the sort. Or the former assignment by add_range_with_merge() is nonsense because clean_sort_range() will produce a accurate number of the sorted array and it never depends on nr_pfn_mapped. Cc: Jacob Shin Cc: Yinghai Lu Signed-off-by: Lin Feng --- arch/x86/mm/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 59b7fc4..55ae904 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -310,7 +310,7 @@ static void add_pfn_range_mapped(unsigned long start_pfn, unsigned long end_pfn) { nr_pfn_mapped = add_range_with_merge(pfn_mapped, E820_X_MAX, nr_pfn_mapped, start_pfn, end_pfn); - nr_pfn_mapped = clean_sort_range(pfn_mapped, E820_X_MAX); + nr_pfn_mapped = clean_sort_range(pfn_mapped, nr_pfn_mapped); max_pfn_mapped = max(max_pfn_mapped, end_pfn); -- 1.8.0.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org