linux-kernel - Re: [PATCH] sysfs: differentiate between locking links and non-links

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Message-ID: <4B74B9E5.60708@kernel.org>
Date:	Fri, 12 Feb 2010 11:16:05 +0900
From:	Tejun Heo <tj@...nel.org>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	Greg KH <gregkh@...e.de>,
	Américo Wang <xiyou.wangcong@...il.com>,
	Neil Brown <neilb@...e.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sysfs: differentiate between locking links and non-links

Hello,

On 02/12/2010 10:20 AM, Eric W. Biederman wrote:
> My reasoning is that we effectively get an active reference on directories
> for free because we have to delete the children before we can delete a
> directory.

Yeah, as long as we guarantee that all children are removed before the
parent, I think we're in the clear.  The group handling seems
problematic (w/ or w/o the patch) but yeap Ack on removing
get_active_two.

Thanks.

-- 
tejun
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