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, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>