linux-kernel - Re: [PATCH] mm: introduce oom_kill

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Message-ID: <57a31f2e-bb08-7303-e5fc-fe00e832cee6@infradead.org>
Date:   Fri, 6 Nov 2020 12:46:47 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Minchan Kim <minchan@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
        Michal Hocko <mhocko@...e.com>
Subject: Re: [PATCH] mm: introduce oom_kill_disable sysctl knob

Hi,

Fix a few typos:

On 11/6/20 12:32 PM, Minchan Kim wrote:
> ---
>  Documentation/admin-guide/sysctl/vm.rst | 14 ++++++++++++++
>  include/linux/mm.h                      |  2 ++
>  include/linux/oom.h                     |  1 +
>  kernel/sysctl.c                         |  9 +++++++++
>  mm/oom_kill.c                           | 24 ++++++++++++++++++++++++
>  5 files changed, 50 insertions(+)
> 
> diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
> index f455fa00c00f..49dcedfaf0c0 100644
> --- a/Documentation/admin-guide/sysctl/vm.rst
> +++ b/Documentation/admin-guide/sysctl/vm.rst
> @@ -694,6 +694,20 @@ is used in oom_kill_allocating_task.
>  
>  The default value is 0.
>  
> +oom_kill_disable
> +================
> +
> +This disables or enables OOM killing in out-of-memory situations.
> +
> +If this is set to one, the OOM killer is disabled so OOM kill never
> +hapens in out-of-memory situation. It could cause system dangerous

   happens                            It could cause a dangerous system

> +state due to memory allocation failure so user should be careful to

                                                            careful when
> +use it.

   using it.

> +
> +If this is set to zero, the OOM killer is enabled so OOM kill happens
> +in out-of-memory situations.
> +
> +The default value is 0.
>  
>  overcommit_kbytes
>  =================

> diff --git a/mm/oom_kill.c b/mm/oom_kill.c
> index 8b84661a6410..0f48cdeeb1e7 100644
> --- a/mm/oom_kill.c
> +++ b/mm/oom_kill.c

>  #ifdef CONFIG_NUMA
>  /**
>   * oom_cpuset_eligible() - check task eligiblity for kill

                                         eligibility

but that's not in your patch, so don't bother with it. :)


-- 
~Randy