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From: Andrew Morton <akpm@linux-foundation.org>
To: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: linux-mm@kvack.org, skumar@linux.vnet.ibm.com,
	yamamoto@valinux.co.jp, menage@google.com, lizf@cn.fujitsu.com,
	linux-kernel@vger.kernel.org, rientjes@google.com,
	xemul@openvz.org, kamezawa.hiroyu@jp.fujitsu.com
Subject: Re: [-mm][PATCH 1/4] Setup the rlimit controller
Date: Mon, 5 May 2008 15:11:42 -0700	[thread overview]
Message-ID: <20080505151142.f52b9d9e.akpm@linux-foundation.org> (raw)
In-Reply-To: <20080503213736.3140.83278.sendpatchset@localhost.localdomain>

On Sun, 04 May 2008 03:07:36 +0530
Balbir Singh <balbir@linux.vnet.ibm.com> wrote:

> +	*tmp = ((*tmp + PAGE_SIZE) >> PAGE_SHIFT) << PAGE_SHIFT;

Whatever this is doing, it should not be doing it this way ;)

perhaps

	*tmp = ALIGN(*tmp, PAGE_SIZE);

or even

	*tmp = PAGE_ALIGN(*tmp);

?


<looks at PAGE_ALIGN>

Each architecture implements its own version and they of course do it
differently.  It's crying out for a consolidated implementation but we have
no include/linux/page.h into which to consolidate it.

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  reply	other threads:[~2008-05-05 22:11 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-03 21:37 [-mm][PATCH 0/4] Add rlimit controller to cgroups (v3) Balbir Singh
2008-05-03 21:37 ` [-mm][PATCH 1/4] Setup the rlimit controller Balbir Singh
2008-05-05 22:11   ` Andrew Morton [this message]
2008-05-06  3:40     ` Balbir Singh
2008-05-06  1:31   ` Li Zefan
2008-05-06  8:15     ` Balbir Singh
2008-05-03 21:38 ` [-mm][PATCH 2/4] Enhance cgroup mm_owner_changed callback to add task information Balbir Singh
2008-05-05 22:15   ` Andrew Morton
2008-05-06  3:43     ` Balbir Singh
2008-05-05 23:00   ` Paul Menage
2008-05-03 21:38 ` [-mm][PATCH 3/4] Add rlimit controller accounting and control Balbir Singh
2008-05-05 22:24   ` Andrew Morton
2008-05-05 22:32     ` David Rientjes
2008-05-06  5:34     ` Balbir Singh
2008-05-07  3:17   ` Paul Menage
2008-05-07  5:59     ` Pavel Emelyanov
2008-05-08 14:54     ` Balbir Singh
2008-05-08 23:22       ` Paul Menage
2008-05-07  3:29   ` Paul Menage
2008-05-08 14:35     ` Balbir Singh
2008-05-08 21:45       ` Paul Menage
2008-05-09 13:35         ` Balbir Singh
2008-05-03 21:38 ` [-mm][PATCH 4/4] Add rlimit controller documentation Balbir Singh
2008-05-05 22:35   ` Andrew Morton
2008-05-06  5:39     ` Balbir Singh
2008-05-06  5:54       ` Andrew Morton
2008-05-06  7:59         ` Balbir Singh
2008-05-04 15:24 ` [-mm][PATCH 0/4] Add rlimit controller to cgroups (v3) kamezawa.hiroyu
2008-05-05  4:21   ` Balbir Singh
2008-05-07  1:09     ` KAMEZAWA Hiroyuki
2008-05-04 15:27 ` kamezawa.hiroyu
2008-05-05  4:24   ` Balbir Singh

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