linux-kernel - [PATCH 2/13] BC: kconfig

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Date:	Tue, 05 Sep 2006 19:20:04 +0400
From:	Kirill Korotaev <dev@...ru>
To:	Andrew Morton <akpm@...l.org>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Christoph Hellwig <hch@...radead.org>,
	Pavel Emelianov <xemul@...nvz.org>,
	Andrey Savochkin <saw@...ru>, devel@...nvz.org,
	Rik van Riel <riel@...hat.com>, Andi Kleen <ak@...e.de>,
	Oleg Nesterov <oleg@...sign.ru>,
	Alexey Dobriyan <adobriyan@...l.ru>,
	Matt Helsley <matthltc@...ibm.com>,
	CKRM-Tech <ckrm-tech@...ts.sourceforge.net>,
	Hugh Dickins <hugh@...itas.com>
Subject: [PATCH 2/13] BC: kconfig

Add kernel/bc/Kconfig file with BC options and
include it into arch Kconfigs

Signed-off-by: Pavel Emelianov <xemul@...ru>
Signed-off-by: Kirill Korotaev <dev@...ru>

---

 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.bckconf	2006-09-05 12:21:09.000000000 +0400
+++ ./kernel/bc/Kconfig	2006-09-05 12:19:54.000000000 +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 configuring
+          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 accidental
+          misbehavior of processes or malicious activity aiming to ``kill''
+          the system. It's worth mentioning that resource limits configured
+          by setrlimit(2) do not give an acceptable level of protection
+          because they cover only a small fraction of resources and work on a
+          per-process basis.  Per-process accounting doesn't prevent malicious
+          users from spawning a lot of resource-consuming processes.
+
+endmenu
-
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