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    SubjectRe: [PATCH UPDATED AGAIN 03/10] threadgroup: extend threadgroup_lock() to cover exit and exec
    Hello,

    On Sat, Dec 10, 2011 at 12:42:53AM +0100, Frederic Weisbecker wrote:
    > > Okay, narrowed exit path protection down to setting of PF_EXITING
    > > itself. ->exit() on dangling tasks is a bit weird but I don't think
    > > it's too bad. Frederic, are you okay with this version?
    >
    > Yeah that new scheme that only protects PF_EXITING may look a bit
    > strange. But I think we are fine. With rcu list traversal, it should
    > be safe even if a group member is concurrently dropped from the list (in that
    > case all we check if its PF_EXITING then we give up). And we may
    > have a concurrent ->exit() but that should be fine too.
    >
    > Thanks!
    >
    > Acked-by: Frederic Weisbecker <fweisbec@gmail.com>

    Awesome, adding Acked-by, putting it on top of pm-freezer and pushing
    it out to linux-next.

    Thank you.

    --
    tejun


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