[Devel] Re: [PATCH 02/14] sysfs: In sysfs_lookup protect s_parent with sysfs_mutex

[Tejun Heo]

Eric W. Biederman wrote:
> Tejun Heo <teheo at suse.de> writes:
> 
>> Eric W. Biederman wrote:
>>> It turns out we have been being silly and have failed to
>>> protect ourselves against races between sysfs_lookup
>>> and operations that modify the sysfs directory like sysfs_readdir
>>> and create_dir.
>>>
>>> So this patch modifies sysfs_lookup to grab sysfs_mutex before
>>> walking the parent->s_children list.
>> Updated portion of #01 and #02 are identical to the cleanup patches I
>> just posted.  :-)
> 
> I'm not surprised.  I will have to see what you have done after I have
> slept.

Good night.

-- 
tejun
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