Messages in this thread | | | Date | Mon, 12 Aug 2013 15:53:10 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH 5/8] rcu: eliminate deadlock for rcu read site |
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On Sat, Aug 10, 2013 at 11:43:59AM +0800, Lai Jiangshan wrote: > Hi, Steven > > I was considering rtmutex's lock->wait_lock is a scheduler lock, > But it is not, and it is just a spinlock of process context. > I hope you change it to a spinlock of irq context.
rwmutex::wait_lock is irq-safe; it had better be because its taken under task_struct::pi_lock.
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