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

[Eric W. Biederman]

Tejun Heo <tj@xxxxxxxxxx> writes:

> Hello,
>
> On 02/10/2010 11:08 AM, AmÃrico Wang wrote:
>> This bug report is new for me. Recently we received lots of sysfs lockdep
>> warnings, I am working on a patch to fix all the bogus ones.
>> 
>> However, this one is _not_ similar to the other cases, as you decribed.
>> This patch could fix the problem, but not a good fix, IMO. We need more
>> work in sysfs layer to fix this kind of things. I will take care of this.
>
> Can't we just give each s_active lock a separate class?  Would that be
> too costly?

When I asked the question earlier I was told that that locking classes
require static storage.  Where would that static storage come from?

Eric
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