linux-kernel - Re: [PATCH v3 0/3] cgroup: add xattr support

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Message-ID: <20120720180459.GJ32763@google.com>
Date:	Fri, 20 Jul 2012 11:04:59 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Aristeu Rozanski <aris@...vo.org>
Cc:	Hugh Dickins <hughd@...gle.com>,
	Aristeu Rozanski <aris@...hat.com>,
	linux-kernel@...r.kernel.org, Li Zefan <lizefan@...wei.com>,
	Hillf Danton <dhillf@...il.com>
Subject: Re: [PATCH v3 0/3] cgroup: add xattr support

Hello, Hugh, Aristeu.

On Fri, Jul 20, 2012 at 01:59:59PM -0400, Aristeu Rozanski wrote:
> hm, not sure that's what Tejun meant. tmpfs uses anonymous memory for the file
> contents, so reuse that infrastructure to allocate space for the extended
> attributes the same way, instead of using kmem.
> 
> First thing I can think of is to use whole pages for it to prevent further
> complexity. Shouldn't make much difference considering the usecases we have
> now (systemd and containers), right?

Yeah, that's what I meant.  The internal fragmentation is ugly but I
think that should do for now at least.

Thanks.

-- 
tejun
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