forked from luck/tmp_suning_uos_patched
MIPS: call set_cpu_online() on cpu being brought up with irq disabled
To prevent a problem as commit5fbd036b
[sched: Cleanup cpu_active madness] and commit2baab4e9
[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@gmail.com> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Cc: David Daney <david.daney@cavium.com> Acked-by: David Daney <david.daney@cavium.com> Patchwork: https://patchwork.linux-mips.org/patch/3851/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -122,6 +122,8 @@ asmlinkage __cpuinit void start_secondary(void)
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notify_cpu_starting(cpu);
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set_cpu_online(cpu, true);
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set_cpu_sibling_map(cpu);
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cpu_set(cpu, cpu_callin_map);
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@ -197,8 +199,6 @@ int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle)
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while (!cpu_isset(cpu, cpu_callin_map))
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udelay(100);
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set_cpu_online(cpu, true);
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return 0;
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}
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