From: Pekka Enberg <penberg@kernel.org>
To: Leonid Moiseichuk <leonid.moiseichuk@nokia.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
cesarb@cesarb.net, kamezawa.hiroyu@jp.fujitsu.com,
emunson@mgebm.net, aarcange@redhat.com, riel@redhat.com,
mel@csn.ul.ie, rientjes@google.com, dima@android.com,
gregkh@suse.de, rebecca@android.com, san@google.com,
akpm@linux-foundation.org, vesa.jaaskelainen@nokia.com
Subject: Re: [PATCH v2 1/2] Making si_swapinfo exportable
Date: Wed, 18 Jan 2012 12:34:19 +0200 [thread overview]
Message-ID: <CAOJsxLHfHHrFyhfkSe8mbsnJHBkgKtksCZZDwN6K3d7KJqfzkQ@mail.gmail.com> (raw)
In-Reply-To: <56cc3c5d40a8653b7d9bef856ff02d909b98f36f.1326803859.git.leonid.moiseichuk@nokia.com>
On Tue, Jan 17, 2012 at 3:22 PM, Leonid Moiseichuk
<leonid.moiseichuk@nokia.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@nokia.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@kernel.org>
next prev parent reply other threads:[~2012-01-18 10:34 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-17 13:22 [PATCH v2 0/2] Memory notification pseudo-device module Leonid Moiseichuk
2012-01-17 13:22 ` [PATCH v2 1/2] Making si_swapinfo exportable Leonid Moiseichuk
2012-01-18 10:34 ` Pekka Enberg [this message]
2012-01-18 14:09 ` Greg KH
2012-01-18 14:46 ` Konrad Rzeszutek Wilk
2012-01-18 15:00 ` Greg KH
2012-01-18 14:47 ` leonid.moiseichuk
2012-01-18 15:00 ` Greg KH
2012-01-18 15:20 ` Pekka Enberg
2012-01-17 13:22 ` [PATCH v2 2/2] Memory notification pseudo-device module Leonid Moiseichuk
2012-01-17 13:32 ` Pekka Enberg
2012-01-17 13:45 ` leonid.moiseichuk
2012-01-17 13:58 ` Pekka Enberg
2012-01-17 14:28 ` leonid.moiseichuk
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