Re: [PATCH] Fix race between attach_task and cpuset_exit

[Paul Jackson]

> Yes, but the cpuset is not made invisible to userspace (in filesystem)  
> yet. So as cpuset_exit() discovers that cpuset B has zero refcount now  
> and blocks on mutex_lock(&manage_mutex) [ to do a check_for_release  
> later ], someone could have done a attach_task to that cpuset.

Agreed.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@xxxxxxx> 1.925.600.0401
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