From: Ben Blum <bblum@andrew.cmu.edu>
To: Li Zefan <lizf@cn.fujitsu.com>
Cc: linux-kernel@vger.kernel.org,
containers@lists.linux-foundation.org, akpm@linux-foundation.org,
menage@google.com
Subject: Re: [RFC] [PATCH 5/5] cgroups: subsystem dependencies
Date: Tue, 8 Dec 2009 20:08:18 -0500 [thread overview]
Message-ID: <20091209010817.GA8929@andrew.cmu.edu> (raw)
In-Reply-To: <4B1DEE09.4010508@cn.fujitsu.com>
On Tue, Dec 08, 2009 at 02:11:21PM +0800, Li Zefan wrote:
> > This patch adds a mechanism with which a subsystem can specify dependencies on
> > other subsystems. Since subsystems can come and go, it would not be useful to
> > refer to a depended-upon subsystem by subsys_id, so instead a NULL-terminated
> > array of strings must be specified. Validation is done by scanning for each
> > potential subsystem its list of subsystem names with strcmp at the end of
> > parse_cgroupfs_options.
>
> I once posted a patch to implement this feature, but it was
> rejected by Andrew, because there was no user using it.
>
> And still there is no user, right?
Dunno - Paul mentioned it might be useful in the future, so I threw this
together in an hour or so. Not entirely sure what he had in mind, but
this series can go with or without this particular patch.
next prev parent reply other threads:[~2009-12-09 1:08 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-04 8:53 [RFC] [PATCH 0/5] cgroups: support for module-loadable subsystems Ben Blum
2009-12-04 8:55 ` [RFC] [PATCH 1/5] cgroups: revamp subsys array Ben Blum
2009-12-08 7:38 ` Li Zefan
2009-12-09 5:50 ` Ben Blum
2009-12-09 6:07 ` Li Zefan
2009-12-09 6:09 ` Li Zefan
2009-12-09 8:27 ` Ben Blum
2009-12-10 3:18 ` Li Zefan
2009-12-10 5:19 ` Ben Blum
2009-12-10 6:00 ` Li Zefan
2009-12-10 6:13 ` Ben Blum
2009-12-09 8:36 ` Ben Blum
2009-12-04 8:56 ` [RFC] [PATCH 2/5] cgroups: subsystem module loading interface Ben Blum
2009-12-04 8:57 ` [RFC] [PATCH 3/5] cgroups: net_cls as module Ben Blum
2009-12-08 6:07 ` Li Zefan
2009-12-04 8:58 ` [RFC] [PATCH 4/5] cgroups: subsystem module unloading Ben Blum
2009-12-04 8:58 ` [RFC] [PATCH 5/5] cgroups: subsystem dependencies Ben Blum
2009-12-08 6:11 ` Li Zefan
2009-12-09 1:08 ` Ben Blum [this message]
2009-12-09 1:40 ` Li Zefan
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