Messages in this thread | | | Date | Thu, 5 Mar 2020 09:11:35 +0100 | From | Sebastian Andrzej Siewior <> | Subject | Re: RCU use of swait |
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On 2020-03-04 16:35:26 [-0800], Paul E. McKenney wrote: > Hello! Hi Paul,
> Or is there some other reason why {S,}RCU needs to use swait that I > am forgetting?
swait can be used in hardirq-context (on RT) that is in a section within local_irq_save() / raw_spin_lock() and so. wait on the hand uses spinlock_t which can not be used in this context. So if you have no users which fall into that category then you could move back to wait.h.
> Thanx, Paul Sebastian
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