[RFC] cpuset update_cgroup_cpus_allowed

Paul Jackson pj at sgi.com
Mon Oct 15 19:32:59 PDT 2007


> Yet by not doing any locking here to prevent a cpu from being 
> hot-unplugged, you can race and allow the hot-unplug event to happen 
> before calling set_cpus_allowed().  That makes this entire function a 
> no-op with set_cpus_allowed() returning -EINVAL for every call, which 
> isn't caught, and no error is reported to userspace.

Good point ... hmmm ...

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                  Paul Jackson <pj at sgi.com> 1.925.600.0401


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