linux-kernel - Re: [Devel] Re: BC: resource beancounters (v2)

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Date:	Tue, 29 Aug 2006 20:06:53 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	rohitseth@...gle.com
Cc:	Kir Kolyshkin <kir@...nvz.org>, devel@...nvz.org,
	Andrew Morton <akpm@...l.org>, Rik van Riel <riel@...hat.com>,
	Andi Kleen <ak@...e.de>,
	Chandra Seetharaman <sekharan@...ibm.com>,
	Greg KH <greg@...ah.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Christoph Hellwig <hch@...radead.org>,
	Andrey Savochkin <saw@...ru>,
	Matt Helsley <matthltc@...ibm.com>,
	Oleg Nesterov <oleg@...sign.ru>
Subject: Re: [Devel] Re: BC: resource beancounters (v2)

Ar Maw, 2006-08-29 am 10:30 -0700, ysgrifennodd Rohit Seth:
> On Tue, 2006-08-29 at 11:15 +0100, Alan Cox wrote:
> > Ar Llu, 2006-08-28 am 15:28 -0700, ysgrifennodd Rohit Seth:
> > > Though if we have file/directory based accounting then shared pages
> > > belonging to /usr/lib or /usr/bin can go to a common container.
> > 
> > So that one user can map all the spare libraries and config files and
> > DoS the system by preventing people from accessing the libraries they do
> > need ?
> > 
> 
> Well, there is a risk whenever there is sharing across containers. The
> point though is, give the choice to sysadmin to configure the platform
> the way it is appropriate.

In other words your suggestion doesn't actually work for the real world
cases like web serving.

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