Eric W. Biederman wrote:
> I think I have figured out how to safely remove s_dentry entirely from
> sysfs_dirent and that winds up removing a lot of subtle and nasty locking.
> I'm hoping to have a good patch series after another couple of hours of
> work.

Great.  Yeah, open coding lookup seems much better idea than checking
whether tree changed while sysfs_mutex was releated.

Thanks.

-- 
tejun
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