[PATCH 6/8] MIPS: call set_cpu_online() on the uping cpu with irq disabled

[Yong Zhang]

From: Yong Zhang <yong.zhang@xxxxxxxxxxxxx>

To prevent a problem as commit 5fbd036b [sched: Cleanup cpu_active madness]
and commit 2baab4e9 [sched: Fix select_fallback_rq() vs cpu_active/cpu_online]
try to resolve, move set_cpu_online() to the brought up CPU and with irq
disabled.

Signed-off-by: Yong Zhang <yong.zhang0@xxxxxxxxx>
Acked-by: David Daney <david.daney@xxxxxxxxxx>
---
 arch/mips/kernel/smp.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 73a268a..042145f 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -122,6 +122,8 @@ asmlinkage __cpuinit void start_secondary(void)
 
 	notify_cpu_starting(cpu);
 
+	set_cpu_online(cpu, true);
+
 	set_cpu_sibling_map(cpu);
 
 	cpu_set(cpu, cpu_callin_map);
@@ -249,8 +251,6 @@ int __cpuinit __cpu_up(unsigned int cpu)
 	while (!cpu_isset(cpu, cpu_callin_map))
 		udelay(100);
 
-	set_cpu_online(cpu, true);
-
 	return 0;
 }
 
-- 
1.7.5.4

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