On Sun, 17 Sep 2017 11:37:06 +0530 Neeraj Upadhyay <neer...@codeaurora.org> wrote:
> Hi Paul, how about replacing raw_spin_trylock_irqsave with > raw_spin_lock_irqsave in resched_cpu()? Are there any paths > in RCU code, which depend on trylock check/spinlock recursion? It looks to me that resched_cpu() was added for nohz full sched balancing, but is not longer used by that. The only user is currently RCU. Perhaps we should change that from a trylock to a lock. -- Steve
