On Thu, 25 Feb 2016 15:54:13 -0800 "Shi, Yang" <yang.shi@xxxxxxxxxx> wrote: > Can we disable irqs in tracepoints since spin_lock_irqsave is used by > kernfs_* functions. Disabling preemption or irqs is fine a tracepoint. You just can't sleep, which spin_lock_irqsave() would do on the -rt kernel. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html