Messages in this thread | | | Subject | Re: [PATCH v8 04/14] task_isolation: add initial support | From | Chris Metcalf <> | Date | Mon, 26 Oct 2015 17:13:05 -0400 |
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On 10/20/2015 08:29 PM, Steven Rostedt wrote: > Also, doesn't RCU need to have a few ticks go by before it can safely > disable itself from userspace? I recall something like that. Paul?
The current patch series supports that by testing tick_nohz_tick_stopped(), which internally only becomes true after tick_nohz_stop_sched_tick() manages to stop the tick, and it won't if rcu_needs_cpu() is true.
-- Chris Metcalf, EZChip Semiconductor http://www.ezchip.com
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