On Thu, 25 Feb 2016 15:54:13 -0800 "Shi, Yang" <yang....@linaro.org> 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
