On Fri, 27 Apr 2018 11:43:41 -0400 (EDT)
Mathieu Desnoyers <mathieu.desnoy...@efficios.com> wrote:

> It does so by disabling preemption in the callbacks, even when it's
> redundant with the guarantees already provided by tracepoint-sched-rcu
> and by kprobes. It's not that great for a fast-path.

Really, preempt_disable() is not bad for a fast path. It's far better
than a local_irq_disable().

-- Steve

Reply via email to