From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750992AbdKYH3P (ORCPT ); Sat, 25 Nov 2017 02:29:15 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:11427 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750748AbdKYH3O (ORCPT ); Sat, 25 Nov 2017 02:29:14 -0500 From: JianKang Chen To: , , , CC: , , , , , , Subject: [PATCH resend] mm/page_alloc: fix comment is __get_free_pages Date: Sat, 25 Nov 2017 15:20:47 +0800 Message-ID: <1511594447-3836-1-git-send-email-chenjiankang1@huawei.com> X-Mailer: git-send-email 1.7.12.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.175.102.37] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090205.5A191BC7.0063,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: f770d7b11d98a5e9e4f0c76d1a035c73 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jiankang Chen __get_free_pages will return an 64bit address in 64bit System like arm64 or x86_64. And this comment really confuse new bigenner of mm. Signed-off-by: Jiankang Chen --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 77e4d3c..5a7c432 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4240,7 +4240,7 @@ unsigned long __get_free_pages(gfp_t gfp_mask, unsigned int order) struct page *page; /* - * __get_free_pages() returns a 32-bit address, which cannot represent + * __get_free_pages() returns a virtual address, which cannot represent * a highmem page */ VM_BUG_ON((gfp_mask & __GFP_HIGHMEM) != 0); -- 1.7.12.4