Ben, is this OK?
Other architectures do the same thing.
Thanks,
Val.
Valentine Barshak wrote:
Remove the CPU from the online map to prevent smp_call_function
from sending messages to a stopped CPU.
Signed-off-by: Valentine Barshak <vbars...@ru.mvista.com>
---
arch/powerpc/kernel/smp.c | 3 +++
1 file changed, 3 insertions(+)
diff -pruN linux-2.6.orig/arch/powerpc/kernel/smp.c
linux-2.6/arch/powerpc/kernel/smp.c
--- linux-2.6.orig/arch/powerpc/kernel/smp.c 2009-11-26 00:22:15.000000000
+0300
+++ linux-2.6/arch/powerpc/kernel/smp.c 2009-11-26 00:26:48.000000000 +0300
@@ -218,6 +218,9 @@ void crash_send_ipi(void (*crash_ipi_cal
static void stop_this_cpu(void *dummy)
{
+ /* Remove this CPU */
+ set_cpu_online(smp_processor_id(), false);
+
local_irq_disable();
while (1)
;
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