From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx180.postini.com [74.125.245.180]) by kanga.kvack.org (Postfix) with SMTP id E04A46B005A for ; Mon, 18 Mar 2013 07:11:43 -0400 (EDT) From: Lin Feng Subject: [PATCH] x86: mm: accurate the comments for STEP_SIZE_SHIFT macro Date: Mon, 18 Mar 2013 18:21:08 +0800 Message-Id: <1363602068-11924-1-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 For x86 PUD_SHIFT is 30 and PMD_SHIFT is 21, so the consequence of (PUD_SHIFT-PMD_SHIFT)/2 is 4. Update the comments to the code. 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..637a95b 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -389,7 +389,7 @@ static unsigned long __init init_range_memory_mapping( return mapped_ram_size; } -/* (PUD_SHIFT-PMD_SHIFT)/2 */ +/* (PUD_SHIFT-PMD_SHIFT)/2+1 */ #define STEP_SIZE_SHIFT 5 void __init init_mem_mapping(void) { -- 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