linux-kernel - Re: [PATCH 1/3 v2 staging-next] android: Collect statistics from lowmemorykiller

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Message-ID: <20170209201329.GA12148@kroah.com>
Date:   Thu, 9 Feb 2017 21:13:29 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     peter enderborg <peter.enderborg@...ymobile.com>
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Arve Hjønnevåg <arve@...roid.com>,
        Riley Andrews <riandrews@...roid.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-mm@...ck.org
Subject: Re: [PATCH 1/3 v2 staging-next] android: Collect statistics from
 lowmemorykiller

On Thu, Feb 09, 2017 at 04:42:35PM +0100, peter enderborg wrote:
> This collects stats for shrinker calls and how much
> waste work we do within the lowmemorykiller.
> 
> Signed-off-by: Peter Enderborg <peter.enderborg@...ymobile.com>
> ---
>  drivers/staging/android/Kconfig                 | 11 ++++
>  drivers/staging/android/Makefile                |  1 +
>  drivers/staging/android/lowmemorykiller.c       |  9 ++-
>  drivers/staging/android/lowmemorykiller_stats.c | 85 +++++++++++++++++++++++++
>  drivers/staging/android/lowmemorykiller_stats.h | 29 +++++++++
>  5 files changed, 134 insertions(+), 1 deletion(-)
>  create mode 100644 drivers/staging/android/lowmemorykiller_stats.c
>  create mode 100644 drivers/staging/android/lowmemorykiller_stats.h

What changed from v1?

> @@ -72,6 +73,7 @@ static unsigned long lowmem_deathpending_timeout;
>  static unsigned long lowmem_count(struct shrinker *s,
>                    struct shrink_control *sc)
>  {
> +    lmk_inc_stats(LMK_COUNT);
>      return global_node_page_state(NR_ACTIVE_ANON) +
>          global_node_page_state(NR_ACTIVE_FILE) +
>          global_node_page_state(NR_INACTIVE_ANON) +

Your email client is eating tabs and spitting out spaces, making this
impossible to even consider being merged :(

Please fix your email client, documentation for how to do so is in the
kernel Documentation directory.

thanks,

greg k-h