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| author | Yong Zhang <yong.zhang@windriver.com> | 2012-07-19 09:13:53 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2012-07-19 11:23:44 +0200 |
| commit | b9a09a0660aa9174e489ac531244680971950ef8 (patch) | |
| tree | 48868fe81c6e29b1df7e09386b40d6c1115094e5 | |
| parent | MIPS: call ->smp_finish() a little late (diff) | |
| download | linux-b9a09a0660aa9174e489ac531244680971950ef8.tar.xz linux-b9a09a0660aa9174e489ac531244680971950ef8.zip | |
MIPS: call set_cpu_online() on cpu being brought up with irq disabled
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@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>
| -rw-r--r-- | 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 b181bbf410de..eb3e2b112a0d 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); @@ -197,8 +199,6 @@ int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) while (!cpu_isset(cpu, cpu_callin_map)) udelay(100); - set_cpu_online(cpu, true); - return 0; } |