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From: Greg Thelen <gthelen@google.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
	Balbir Singh <balbir@linux.vnet.ibm.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Greg Thelen <gthelen@google.com>
Subject: [PATCH v3 0/2] memcg: variable type fixes
Date: Thu, 17 Feb 2011 12:52:46 -0800	[thread overview]
Message-ID: <1297975968-19672-1-git-send-email-gthelen@google.com> (raw)

Changes since -v2:
- Reworded patch 1 commit message.

This is a two part series that is a cleanup of memcg internal
counters.  These two patches were originally proposed by Johannes
Weiner [1].  The original series was based on an older mmotm, so I had
to massage the patches a little.  The patches are based on
mmotm-2011-02-10-16-26.

Patch 1 implements the idea that memcg only has to use signed types
for some of the counters, but not for the constant monotonically
increasing event counters where the sign-bit is a waste.
Originally proposed in [2].

Patch 2 converts the memcg fundamental page statistics counters to
native words as they should be wide enough for the expected values.
Originally proposed in [3].

References:
 [1] https://lkml.org/lkml/2010/11/7/170
 [2] https://lkml.org/lkml/2010/11/7/174
 [3] https://lkml.org/lkml/2010/11/7/171

Johannes Weiner (2):
  memcg: break out event counters from other stats
  memcg: use native word page statistics counters

 mm/memcontrol.c |   78 ++++++++++++++++++++++++++++++++++++-------------------
 1 files changed, 51 insertions(+), 27 deletions(-)

-- 
1.7.3.1

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             reply	other threads:[~2011-02-17 20:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-17 20:52 Greg Thelen [this message]
2011-02-17 20:52 ` [PATCH v3 1/2] memcg: break out event counters from other stats Greg Thelen
2011-02-17 20:52 ` [PATCH v3 2/2] memcg: use native word page statistics counters Greg Thelen

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