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

From: Yong Zhang
Date: Thu May 17 2012 - 06:11:42 EST


From: Yong Zhang <yong.zhang@xxxxxxxxxxxxx>

To prevent a problem as commit 5fbd036b && 2baab4e9 try to resolve,
move set_cpu_online() to the uping CPU and with irq disabled.

Signed-off-by: Yong Zhang <yong.zhang0@xxxxxxxxx>
---
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;
}

--
1.7.1

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