On Mon, 02 Nov 2015 09:12:29 -0800 "Shi, Yang" <yang....@linaro.org> wrote:
> Yes, it is common practice for converting sleepable spin lock to raw > spin lock in -rt to avoid scheduling in atomic context bug. Note, in a lot of cases we don't just convert spin_locks to raw because of atomic context. There's times we need to change the design where the lock is not taken in atomic context (switching preempt_disable() to a local_lock() for example). But bpf is much like ftrace and kprobes where they can be taken almost anywhere, and the do indeed need to be raw. -- Steve -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
