[PATCH] mm/page_poison: Make early_page_poison_param __init

[PATCH] mm/page_poison: Make early_page_poison_param __init

[Dou Liyang]

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@linux-foundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-mm@kvack.org
Signed-off-by: Dou Liyang <douly.fnst@cn.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



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Re: [PATCH] mm/page_poison: Make early_page_poison_param __init

[Michal Hocko]

On Wed 17-01-18 11:47:57, Dou Liyang wrote:
> 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@linux-foundation.org>
> Cc: Philippe Ombredanne <pombredanne@nexb.com>
> Cc: Kate Stewart <kstewart@linuxfoundation.org>
> Cc: Michal Hocko <mhocko@suse.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: linux-mm@kvack.org
> Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>

Acked-by: Michal Hocko <mhocko@suse.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
> 
> 
> 

-- 
Michal Hocko
SUSE Labs

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