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Message-ID: <CAOJsxLHfHHrFyhfkSe8mbsnJHBkgKtksCZZDwN6K3d7KJqfzkQ@mail.gmail.com>
Date: Wed, 18 Jan 2012 12:34:19 +0200
From: Pekka Enberg <penberg@...nel.org>
To: Leonid Moiseichuk <leonid.moiseichuk@...ia.com>
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org,
cesarb@...arb.net, kamezawa.hiroyu@...fujitsu.com,
emunson@...bm.net, aarcange@...hat.com, riel@...hat.com,
mel@....ul.ie, rientjes@...gle.com, dima@...roid.com,
gregkh@...e.de, rebecca@...roid.com, san@...gle.com,
akpm@...ux-foundation.org, vesa.jaaskelainen@...ia.com
Subject: Re: [PATCH v2 1/2] Making si_swapinfo exportable
On Tue, Jan 17, 2012 at 3:22 PM, Leonid Moiseichuk
<leonid.moiseichuk@...ia.com> wrote:
> If we will make si_swapinfo() exportable it could be called from modules.
> Otherwise modules have no interface to obtain information about swap usage.
> Change made in the same way as si_meminfo() declared.
>
> Signed-off-by: Leonid Moiseichuk <leonid.moiseichuk@...ia.com>
> ---
> mm/swapfile.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/mm/swapfile.c b/mm/swapfile.c
> index b1cd120..192cc25 100644
> --- a/mm/swapfile.c
> +++ b/mm/swapfile.c
> @@ -5,10 +5,12 @@
> * Swap reorganised 29.12.95, Stephen Tweedie
> */
>
> +#include <linux/export.h>
> #include <linux/mm.h>
> #include <linux/hugetlb.h>
> #include <linux/mman.h>
> #include <linux/slab.h>
> +#include <linux/kernel.h>
> #include <linux/kernel_stat.h>
> #include <linux/swap.h>
> #include <linux/vmalloc.h>
> @@ -2177,6 +2179,7 @@ void si_swapinfo(struct sysinfo *val)
> val->totalswap = total_swap_pages + nr_to_be_unused;
> spin_unlock(&swap_lock);
> }
> +EXPORT_SYMBOL(si_swapinfo);
FWIW, I'm completely OK with this export:
Acked-by: Pekka Enberg <penberg@...nel.org>
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