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authorVijay Kumar <vijay.ac.kumar@oracle.com>2017-02-01 11:34:37 -0800
committerDavid S. Miller <davem@davemloft.net>2017-02-23 08:27:24 -0800
commitcffb3e76818fee4763a2ce5f2b1eca2d7885e2cf (patch)
tree79bde1cfa73e4de029c9c3d700ff2c3d4bd73253
parentf41e54616ca1a199f6c17228f26082ccdaaab3de (diff)
sparc64: Set cpu state to offline when stopped
CPU needs to be marked offline before stopping it. When not marked offline, the xcall receives HV_EWOULDBLOCK and so assumes that not all CPUs received the message, and retries. After 10000 retries, it finally fails with fatal mondo timeout. Signed-off-by: Vijay Kumar <vijay.ac.kumar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--arch/sparc/kernel/smp_64.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 0ce347f8e4cc..712bf1b7f630 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1443,6 +1443,7 @@ void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs)
static void stop_this_cpu(void *dummy)
{
+ set_cpu_online(smp_processor_id(), false);
prom_stopself();
}
@@ -1454,6 +1455,8 @@ void smp_send_stop(void)
for_each_online_cpu(cpu) {
if (cpu == smp_processor_id())
continue;
+
+ set_cpu_online(cpu, false);
#ifdef CONFIG_SUN_LDOMS
if (ldom_domaining_enabled) {
unsigned long hv_err;