Re: [PATCH v2 1/2] sched: schedule_tail() should disable preemption
On Thu, Oct 09, 2014 at 04:57:26PM +0200, Oleg Nesterov wrote:
> but first we need to remove ->saved_preempt_count.
Why do you want to kill that? Your earlier proposal would penalize every !x86 arch by adding extra code to the scheduler core while they already automagically preserve their thread_info::preempt_count.