Commit dc6416f1 authored Mar 17, 2016 by Boris Ostrovsky Committed by Konrad Rzeszutek Wilk Mar 29, 2016

xen/x86: Call cpu_startup_entry(CPUHP_AP_ONLINE_IDLE) from xen_play_dead()



This call has always been missing from xen_play dead() but until
recently this was rather benign. With new cpu hotplug framework
(commit 8df3e07e ("cpu/hotplug: Let upcoming cpu bring itself fully up").
however this call is required, otherwise a hot-plugged CPU will not
be properly brough up (by never calling cpuhp_online_idle())

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

parent 8041dcc8

arch/x86/xen/smp.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -545,6 +545,8 @@ static void xen_play_dead(void) /* used only with HOTPLUG_CPU */
		* data back is to call:
		*/
		tick_nohz_idle_enter();

		cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
		}

		#else /* !CONFIG_HOTPLUG_CPU */