Re: [PATCH] arm: kprobe: replace patch_lock to raw lock

On 2016-11-10 16:17:55 [-0800], Yang Shi wrote:

Since patch_text_stop_machine() is called in stop_machine() which disables IRQ, sleepable lock should be not used in this atomic context, so replace patch_lock to raw lock.

I am taking this one. Thank you. We have jump_labels() deactivated on ARM because stop_machine() may cause latencies at runtime. kprobe and kgdb is used by the user on purpose (and not because he changed some sched setting) I think we are fine. I am going to document this.

Signed-off-by: Yang Shi yang.shi@linaro.org

Sebastian