| Date | Tue, 29 Sep 2015 15:41:26 +0200 | From | Frederic Weisbecker <> | Subject | Re: [RFC][PATCH 04/11] sched: Rework TASK_DEAD preemption exception |
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On Tue, Sep 29, 2015 at 11:28:29AM +0200, Peter Zijlstra wrote: > TASK_DEAD is special in that the final schedule call from do_exit() > must be done with preemption disabled. > > This leads to a violation of our new scheduling invariant which states > that the preempt count should be 2. Move the check for TASK_DEAD out > of the debug check and use it to decrement the preempt count (from 2 > to 1). > > Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com>
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