Commit 0c9e8e0f authored Apr 23, 2018 by Prasad Sodagudi

sched/core: Disable irq before calling irq_migrate_all_off_this_cpu



irq_migrate_all_off_this_cpu is not disabling the irq
when when irqs are migrated.
commit 0dd945ff ("genirq/cpuhotplug: Remove irq disabling logic")
removed the irq disable, thinking that every caller of
irq_migrate_all_off_this_cpu would disable irqs. So disable irqs
during the core isolation before calling irq_migrate_all_off_this_cpu.

Change-Id: I07b42e4ab6ce488e41f181ecf3033de20da8f831
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>

parent c9e61f28

kernel/sched/core.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -5789,10 +5789,10 @@ int do_isolation_work_cpu_stop(void *data)

		watchdog_disable(cpu);

		irq_migrate_all_off_this_cpu();

		local_irq_disable();

		irq_migrate_all_off_this_cpu();

		sched_ttwu_pending();

		/* Update our root-domain */