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From: Tejun Heo <tj@kernel.org>
To: Lennart Poettering <mzxreary@0pointer.de>
Cc: Kay Sievers <kay.sievers@vrfy.org>,
	Li Zefan <lizf@cn.fujitsu.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Cgroups <cgroups@vger.kernel.org>
Subject: Re: [PATCH 2/2] cgroup: add xattr support
Date: Wed, 18 Jan 2012 18:20:05 -0800	[thread overview]
Message-ID: <20120119022005.GG21533@google.com> (raw)
In-Reply-To: <20120119014727.GG29242@tango.0pointer.de>

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

  reply	other threads:[~2012-01-19  2:20 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-16  8:06 [PATCH 1/2] cgroup: revise how we re-populate root directory Li Zefan
2012-01-16  8:07 ` [PATCH 2/2] cgroup: add xattr support Li Zefan
2012-01-17 17:53   ` Tejun Heo
2012-01-18  8:27     ` Li Zefan
2012-01-18 17:47       ` Tejun Heo
2012-01-19  1:49         ` Lennart Poettering
2012-01-18 21:28     ` Kay Sievers
2012-01-18 21:36       ` Tejun Heo
2012-01-19  1:47         ` Lennart Poettering
2012-01-19  2:20           ` Tejun Heo [this message]
2012-01-19  2:40             ` Tejun Heo
2012-01-21  3:02               ` Lennart Poettering
2012-01-21  4:00                 ` Hugh Dickins
2012-01-21  2:59             ` Lennart Poettering
2012-01-18  7:23 ` [PATCH 1/2] cgroup: revise how we re-populate root directory Sha
2012-01-18  7:59   ` Li Zefan

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