On Mon, Aug 12, 2013 at 10:10:08AM -0400, Steven Rostedt wrote: > On Mon, 12 Aug 2013 15:53:10 +0200 > Peter Zijlstra <pet...@infradead.org> wrote: > > > 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. > > It is? I thought it was the other way around. That is, pi_lock is taken > under wait_lock.
Urgh, right you are. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
