linux-kernel - [PATCH 5/8] RSS accounting hooks over the code

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Message-ID: <461A3775.8090604@sw.ru>
Date:	Mon, 09 Apr 2007 16:54:13 +0400
From:	Pavel Emelianov <xemul@...ru>
To:	Andrew Morton <akpm@...l.org>, Paul Menage <menage@...gle.com>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Balbir Singh <balbir@...ibm.com>
CC:	devel@...nvz.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kirill Korotaev <dev@...ru>,
	Chandra Seetharaman <sekharan@...ibm.com>,
	Cedric Le Goater <clg@...ibm.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Rohit Seth <rohitseth@...gle.com>,
	Linux Containers <containers@...ts.osdl.org>
Subject: [PATCH 5/8] RSS accounting hooks over the code

As described above, pages are charged to their first touchers.
The first toucher is determined using pages' mapcount manipulations
in rmap calls.

Page is charged in two stages:
1. preparation, in which the resource availability is checked.
   This stage may lead to page reclamation, thus it is performed
   in a might-sleep places;
2. the container assignment to page. This is done in an atomic
   code that handles multiple touches.

View attachment "diff-rss-container-rmap-hooks" of type "text/plain" (15607 bytes)