powerpc: stop_this_cpu: remove the cpu from the online map.

Remove the CPU from the online map to prevent smp_call_function from sending messages to a stopped CPU. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
git-mirror · Dec 9, 2009 · 8389b37 · 8389b37
1 parent 1a8061c
commit 8389b37
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
@@ -218,6 +218,9 @@ void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *))
 
 static void stop_this_cpu(void *dummy)
 {
+	/* Remove this CPU */
+	set_cpu_online(smp_processor_id(), false);
+
 	local_irq_disable();
 	while (1)
 		;