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From: Christoph Lameter <cl@linux.com>
To: Michal Hocko <mhocko@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Hugh Dickins <hughd@google.com>, Vlastimil Babka <vbabka@suse.cz>,
	Mel Gorman <mgorman@techsingularity.net>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: unhide vmstat_text definition for CONFIG_SMP
Date: Mon, 16 May 2016 08:54:55 -0500 (CDT)	[thread overview]
Message-ID: <alpine.DEB.2.20.1605160854330.23895@east.gentwo.org> (raw)
In-Reply-To: <20160516073716.GB23146@dhcp22.suse.cz>

On Mon, 16 May 2016, Michal Hocko wrote:

> I agree with Christoph that vmstat_refresh is PROC_FS only so we should
> fix it there. It is not like this would be generally reusable helper...
> Why don't we just do:

Looks good.

Acked-by: Christoph Lameter <cl@linux.com>

> ---
> diff --git a/mm/vmstat.c b/mm/vmstat.c
> index 57a24e919907..c759b526287b 100644
> --- a/mm/vmstat.c
> +++ b/mm/vmstat.c
> @@ -1370,6 +1370,7 @@ static void refresh_vm_stats(struct work_struct *work)
>  	refresh_cpu_vm_stats(true);
>  }
>
> +#ifdef CONFIG_PROC_FS
>  int vmstat_refresh(struct ctl_table *table, int write,
>  		   void __user *buffer, size_t *lenp, loff_t *ppos)
>  {
> @@ -1422,6 +1423,7 @@ int vmstat_refresh(struct ctl_table *table, int write,
>  		*lenp = 0;
>  	return 0;
>  }
> +#endif
>
>  static void vmstat_update(struct work_struct *w)
>  {
>

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  reply	other threads:[~2016-05-16 13:54 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-11 14:54 Arnd Bergmann
2016-05-11 15:32 ` Christoph Lameter
2016-05-16  7:31   ` Michal Hocko
2016-05-17  5:31   ` Do not build vmstat_refresh if there is no procfs support kbuild test robot
2016-05-16  7:37 ` [PATCH] mm: unhide vmstat_text definition for CONFIG_SMP Michal Hocko
2016-05-16 13:54   ` Christoph Lameter [this message]
2016-05-16 14:23 ` Michal Hocko
2016-05-16 22:36   ` Andrew Morton
2016-05-17  7:05     ` Michal Hocko
2016-05-18  1:02       ` Hugh Dickins

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