linux-kernel - Re: [RFC][PATCH 4/7] RSS accounting hooks over the code

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Message-Id: <1173718208.11945.54.camel@localhost.localdomain>
Date:	Mon, 12 Mar 2007 09:50:08 -0700
From:	Dave Hansen <hansendc@...ibm.com>
To:	Kirill Korotaev <dev@...ru>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	containers@...ts.osdl.org, Paul Menage <menage@...gle.com>,
	Pavel Emelianov <xemul@...ru>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFC][PATCH 4/7] RSS accounting hooks over the code

On Mon, 2007-03-12 at 19:23 +0300, Kirill Korotaev wrote:
> 
> For these you essentially need per-container page->_mapcount counter,
> otherwise you can't detect whether rss group still has the page in question being mapped
> in its processes' address spaces or not. 

What do you mean by this?  You can always tell whether a process has a
particular page mapped.  Could you explain the issue a bit more.  I'm
not sure I get it.

-- Dave

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