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    SubjectRe: [PATCH 2/2] cpuhotplug: introduce try_get_online_cpus()
    Date
    On Sat, 30 May 2009 06:01:18 am Andrew Morton wrote:
    > I do think that we should look at
    > alternative (non-trylocky) ways of fixing them.

    Speculating: we could add a "keep_cpu()" (FIXME: improve name) which is kind
    of like get_cpu() only doesn't disable preemption and only stops *this* cpu
    from going down.

    Not sure where that gets us, but if someone's going to dig deep into this it
    might help.

    Thanks,
    Rusty.


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