Messages in this thread | | | Date | Fri, 11 Apr 2008 13:21:28 -0400 | From | "Dan Upton" <> | Subject | CFS rq lock question |
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I'm poking around with some scheduler stuff, and there's something I'm not clear on for the CFS runqueue locks. The comments before __load_balance_iterator(...) in sched_fair.c suggests things can be dequeued even though the runqueue lock is held. Can things also be added to the queue while the lock is held? (Also, either way, what's the rationale that dequeueing is a safe procedure when somebody else holds a lock?)
-dan
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