26 Feb
2016
26 Feb
'16
12:09 a.m.
On Thu, 25 Feb 2016 15:54:13 -0800 "Shi, Yang" yang.shi@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