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From: Cedric Le Goater <clg@fr.ibm.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: Matt Helsley <matthltc@us.ibm.com>,
	"Rafael J. Wysocki" <rjw@sisk.pl>,
	Linux-Kernel <linux-kernel@vger.kernel.org>,
	Paul Menage <menage@google.com>,
	Oren Laadan <orenl@cs.columbia.edu>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-pm@lists.linux-foundation.org,
	Linux Containers <containers@lists.linux-foundation.org>
Subject: Re: [RFC][PATCH 2/5] Container Freezer: Make refrigerator always available
Date: Fri, 25 Apr 2008 14:07:20 +0200	[thread overview]
Message-ID: <4811C978.6010508@fr.ibm.com> (raw)
In-Reply-To: <20080425110456.GF14903@elf.ucw.cz>

Pavel Machek wrote:
> Hi!
> 
>> Now that the TIF_FREEZE flag is available in all architectures,
>> extract the refrigerator() and freeze_task() from kernel/power/process.c
>> and make it available to all.
>>
>> The refrigerator() can now be used in a control group subsystem 
>> implementing a control group freezer.
>>
>> Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
>> Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
>> Tested-by: Matt Helsley <matthltc@us.ibm.com>
> 
> There's no problem with doing this... but you should get some debate
> (with Linus?) whether using freezer for cgroups is sane. 

Yes that's what we are trying to know, is the fake signal mechanism 
used by the freezer something we can build upon ? 

> When that is done, there's no problem with this going in, probably 
> through rafael's patch queue.

OK

> (The first patch -- add freezer for all archs -- is probably
> reasonably to go in ASAP, through akpm or something...)

Thanks,

C.

  reply	other threads:[~2008-04-25 12:07 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-24  6:47 [RFC][PATCH 0/5] Container Freezer: Reuse Suspend Freezer Matt Helsley
2008-04-24  6:47 ` [RFC][PATCH 1/5] Container Freezer: Add TIF_FREEZE flag to all architectures Matt Helsley
2008-04-24  8:09   ` Pavel Machek
2008-04-24  6:47 ` [RFC][PATCH 2/5] Container Freezer: Make refrigerator always available Matt Helsley
2008-04-25 11:04   ` Pavel Machek
2008-04-25 12:07     ` Cedric Le Goater [this message]
2008-04-26 13:02       ` Rafael J. Wysocki
2008-04-26 23:32         ` [RFC][PATCH] Freezer: NOSIG flag (was: Re: [RFC][PATCH 2/5] Container Freezer: Make refrigerator always available) Rafael J. Wysocki
2008-04-30  9:08     ` [RFC][PATCH 2/5] Container Freezer: Make refrigerator always available Matt Helsley
2008-04-24  6:47 ` [RFC][PATCH 3/5] Container Freezer: Implement freezer cgroup subsystem Matt Helsley
2008-04-25  5:51   ` Paul Menage
2008-04-28  4:03     ` Serge E. Hallyn
2008-04-30 10:39     ` Matt Helsley
2008-04-30 21:28   ` Matt Helsley
2008-04-30 22:30     ` Matt Helsley
2008-04-24  6:48 ` [RFC][PATCH 4/5] Container Freezer: Skip frozen cgroups during power management resume Matt Helsley
2008-04-24  6:48 ` [RFC][PATCH 5/5] Add a Signal Control Group Subsystem Matt Helsley
2008-04-24 19:30   ` Paul Jackson
2008-04-30  7:48     ` Matt Helsley
2008-04-30  8:18       ` Paul Jackson
2008-04-25  6:01   ` Paul Menage
2008-04-30  8:29     ` Matt Helsley
2008-04-25 11:41   ` Cedric Le Goater
2008-04-30 18:44     ` Matt Helsley

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