Messages in this thread | | | Date | Wed, 20 Jan 2010 17:47:16 +0900 | From | Tejun Heo <> | Subject | Re: [PATCH 06/40] sched: add wakeup/sleep sched_notifiers and allow NULL notifier ops |
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Hello,
On 01/19/2010 05:55 PM, Peter Zijlstra wrote: > I think so, still doing a wakeup from a wakeup sounds like trouble in > that it has the potential to a thundering herd, so I'd really rather > you'd not do something like that.
cmwq is not gonna do that and if someone is gonna do that there of course needs to be some sort of limiting.
I still feel a bit uneasy about calling out external callbacks before scheduler internal state update is complete. If you still think moving it right below activate_task() would be better, I'll move it and modify the comment above try_to_wake_up_local(). Please let me know what you think.
Thanks.
-- tejun
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