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Date:   Sat, 25 Nov 2017 15:20:47 +0800
From:   JianKang Chen <chenjiankang1@...wei.com>
To:     <akpm@...ux-foundation.org>, <mhocko@...e.com>,
        <mgorman@...hsingularity.net>, <hillf.zj@...baba-inc.com>
CC:     <hannes@...xchg.org>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>, <xieyisheng1@...wei.com>,
        <guohanjun@...wei.com>, <wangkefeng.wang@...wei.com>,
        <chenjiankang1@...wei.com>
Subject: [PATCH resend] mm/page_alloc: fix comment is __get_free_pages

From: Jiankang Chen <chenjiankang1@...wei.com>

__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 <chenjiankang1@...wei.com>
---
 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

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