linux-kernel - [PATCH] mm/page_poison: Make early_page_poison_param _

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Message-ID: <20180117034757.27024-1-douly.fnst@cn.fujitsu.com>
Date:   Wed, 17 Jan 2018 11:47:57 +0800
From:   Dou Liyang <douly.fnst@...fujitsu.com>
To:     <linux-kernel@...r.kernel.org>
CC:     Dou Liyang <douly.fnst@...fujitsu.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Michal Hocko <mhocko@...e.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        <linux-mm@...ck.org>
Subject: [PATCH] mm/page_poison: Make early_page_poison_param __init

The early_param() is only called during kernel initialization, So Linux
marks the function of it with __init macro to save memory.

But it forgot to mark the early_page_poison_param(). So, Make it __init
as well.

Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Philippe Ombredanne <pombredanne@...b.com>
Cc: Kate Stewart <kstewart@...uxfoundation.org>
Cc: Michal Hocko <mhocko@...e.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-mm@...ck.org
Signed-off-by: Dou Liyang <douly.fnst@...fujitsu.com>
---
 mm/page_poison.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_poison.c b/mm/page_poison.c
index e83fd44867de..aa2b3d34e8ea 100644
--- a/mm/page_poison.c
+++ b/mm/page_poison.c
@@ -9,7 +9,7 @@
 
 static bool want_page_poisoning __read_mostly;
 
-static int early_page_poison_param(char *buf)
+static int __init early_page_poison_param(char *buf)
 {
 	if (!buf)
 		return -EINVAL;
-- 
2.14.3