If we are in nohz and there's still irq_work to be done when the idle
task is about to go offline. Give a nasty warning.
Signed-off-by: Steven Rostedt <rost...@goodmis.org>
Index: linux-rt.git/kernel/irq_work.c
===================================================================
--- linux-rt.git.orig/kernel/irq_work.c
+++ linux-rt.git/kernel/irq_work.c
@@ -103,6 +103,9 @@ bool irq_work_needs_cpu(void)
if (llist_empty(this_list))
return false;
+ /* All work should have been flushed before going offline */
+ WARN_ON_ONCE(cpu_is_offline(smp_processor_id()));
+
return true;
}
--
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