From: Li Zefan <lizf@cn.fujitsu.com>
To: Paul Menage <menage@google.com>
Cc: Matt Helsley <matthltc@us.ibm.com>,
Cedric Le Goater <clg@fr.ibm.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Linux-Kernel <linux-kernel@vger.kernel.org>,
Linux Containers <containers@lists.linux-foundation.org>,
linux-pm@lists.linux-foundation.org,
Andrew Morton <akpm@linux-foundation.org>,
"Serge E. Hallyn" <serue@us.ibm.com>
Subject: Re: [RFC][PATCH] freezer_cg: disable writing freezer.state of root cgroup
Date: Tue, 04 Nov 2008 16:01:19 +0800 [thread overview]
Message-ID: <4910014F.4000808@cn.fujitsu.com> (raw)
In-Reply-To: <6599ad830811032356g6827a97dq41dec492fed8de15@mail.gmail.com>
Paul Menage wrote:
> On Mon, Nov 3, 2008 at 11:35 PM, Li Zefan <lizf@cn.fujitsu.com> wrote:
>> With this change, the root cgroup is unfreezable, and writing to
>> its freezer.state returns -EIO.
>
> EINVAL might be more consistent with other systems like cpusets.
>
Because writing FREEZE (or other invalid value) to freezer.state returns EIO..
Or that EIO should be also changed to EINVAL.
> Or maybe just skip populating the file entirely for the root cgroup?
> It's not useful if it can't be written and always returns the same
> value.
>
I thought about this. I'll see which way Matt and Cedric prefer.
next prev parent reply other threads:[~2008-11-04 8:04 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-11 23:53 [PATCH 0/5] Container Freezer v6: Reuse Suspend Freezer Matt Helsley
2008-08-11 23:53 ` [PATCH 1/5] Container Freezer: Add TIF_FREEZE flag to all architectures Matt Helsley
2008-08-11 23:53 ` [PATCH 2/5] Container Freezer: Make refrigerator always available Matt Helsley
2008-08-12 20:49 ` Rafael J. Wysocki
2008-08-13 1:01 ` [ProbableSpam]Re: " Matt Helsley
2008-08-13 14:31 ` Rafael J. Wysocki
2008-08-11 23:53 ` [PATCH 3/5] Container Freezer: Implement freezer cgroup subsystem Matt Helsley
2008-08-12 22:56 ` Andrew Morton
2008-08-13 2:38 ` Matt Helsley
2008-08-13 14:51 ` Rafael J. Wysocki
2008-11-04 5:43 ` Paul Menage
2008-11-04 6:12 ` Li Zefan
2008-11-04 6:40 ` Paul Menage
2008-11-04 7:25 ` Li Zefan
2008-11-04 7:35 ` [RFC][PATCH] freezer_cg: disable writing freezer.state of root cgroup Li Zefan
2008-11-04 7:56 ` Paul Menage
2008-11-04 8:01 ` Li Zefan [this message]
2008-11-05 10:18 ` Cedric Le Goater
2008-11-06 0:48 ` Paul Menage
2008-11-04 6:48 ` [PATCH] freezer_cg: remove task_lock from freezer_fork() Li Zefan
2008-08-11 23:53 ` [PATCH 4/5] Container Freezer: Skip frozen cgroups during power management resume Matt Helsley
2008-08-12 20:50 ` Rafael J. Wysocki
2008-08-11 23:53 ` [PATCH 5/5] Container Freezer: Prevent frozen tasks or cgroups from changing Matt Helsley
2008-08-12 22:44 ` [PATCH 0/5] Container Freezer v6: Reuse Suspend Freezer Andrew Morton
2008-08-13 3:47 ` [linux-pm] " Vivek Kashyap
2008-08-13 4:08 ` Andrew Morton
2008-08-15 21:54 ` Matt Helsley
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