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Message-ID: <20120119022005.GG21533@google.com>
Date:	Wed, 18 Jan 2012 18:20:05 -0800
From:	Tejun Heo <tj@...nel.org>
To:	Lennart Poettering <mzxreary@...inter.de>
Cc:	Kay Sievers <kay.sievers@...y.org>, Li Zefan <lizf@...fujitsu.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Cgroups <cgroups@...r.kernel.org>
Subject: Re: [PATCH 2/2] cgroup: add xattr support

Hello, Lennart, Li.

Two things.

* Probably I'm missing something but isn't the systemd cgroup
  hierarchy already managed by systemd?  If so, I don't see how
  managing tmpfs on the side would noticeably make things more
  fragile.  It would take a bit more care after, for example, restart
  but it shouldn't be too complex, no?

* FS attributes already being used for userland information seems like
  a good argument, but we shouldn't add separate specialized xattr
  implementation to different pseudo filesystems.  For it to be
  acceptable, it should be a libfs thing easily applicable to any
  pseudo FS and definitely shouldn't be using kmem for storage.

Thanks.

-- 
tejun
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