[Devel] Re: [PATCH 2/7] BC: kconfig

Randy.Dunlap rdunlap at xenotime.net
Tue Aug 29 21:05:46 PDT 2006


On Tue, 29 Aug 2006 18:51:20 +0400 Kirill Korotaev wrote:

> Add kernel/bc/Kconfig file with BC options and
> include it into arch Kconfigs
> 
> ---
>  init/Kconfig      |    2 ++
>  kernel/bc/Kconfig |   25 +++++++++++++++++++++++++
>  2 files changed, 27 insertions(+)
> 
> --- ./init/Kconfig.bckm	2006-07-10 12:39:10.000000000 +0400
> +++ ./init/Kconfig	2006-07-28 14:10:41.000000000 +0400
> @@ -222,6 +222,8 @@ source "crypto/Kconfig"
>  
>  	  Say N if unsure.
>  
> +source "kernel/bc/Kconfig"
> +
>  config SYSCTL
>  	bool
>  
> --- ./kernel/bc/Kconfig.bckm	2006-07-28 13:07:38.000000000 +0400
> +++ ./kernel/bc/Kconfig	2006-07-28 13:09:51.000000000 +0400
> @@ -0,0 +1,25 @@
> +#
> +# Resource beancounters (BC)
> +#
> +# Copyright (C) 2006 OpenVZ. SWsoft Inc
> +
> +menu "User resources"
> +
> +config BEANCOUNTERS
> +	bool "Enable resource accounting/control"
> +	default n
> +	help 
> +          When Y this option provides accounting and allows to configure

"allows" needs an object after it, like "you" or "one".

> +          limits for user's consumption of exhaustible system resources.
> +          The most important resource controlled by this patch is unswappable 
> +          memory (either mlock'ed or used by internal kernel structures and 
> +          buffers). The main goal of this patch is to protect processes
> +          from running short of important resources because of an accidental

drop "an"

> +          misbehavior of processes or malicious activity aiming to ``kill'' 
> +          the system. It's worth to mention that resource limits configured 

s/to mention/mentioning/

> +          by setrlimit(2) do not give an acceptable level of protection 
> +          because they cover only small fraction of resources and work on a 

"only a small fraction"

> +          per-process basis.  Per-process accounting doesn't prevent malicious
> +          users from spawning a lot of resource-consuming processes.
> +
> +endmenu

and there are several lines that end with <space> (don't do that :).

---
~Randy




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