Re: [PATCH 06/20] sysfs: Use dentry_ops instead of directly playingwith the dcache
From: Tejun Heo
Date: Thu May 21 2009 - 03:41:22 EST
Eric W. Biederman wrote:
>> Ummm... what happens if sysfs recreates those identical nodes again
>> while the old dentries are lingering? The dead ones will linger till
>> the submounts are gone and then look ups after that will show the new
>> ones, right?
>
> Yep. On the vfs level. The sysfs dirent tree will reflect what is
> going on with the hardware.
>
> This is a vfs misfeature, that I hope someday we will get fixed.
> But for now it is better not to leak mount points. Especially
> since no one actually mounts things on sysfs.
fuse and debugfs do. :-P
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
--
tejun
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