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| author | Huacai Chen <chenhc@lemote.com> | 2012-08-13 20:52:24 +0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2012-12-13 18:15:26 +0100 |
| commit | 8add1ecb81f541ef2fcb0b85a5470ad9ecfb4a84 (patch) | |
| tree | f9d5c695530c2ce1a02bcb39585711afc0aaa8d3 | |
| parent | b88fb18e7e0e17d517c5267de938c1a35a063a97 (diff) | |
| download | linux-8add1ecb81f541ef2fcb0b85a5470ad9ecfb4a84.tar.gz linux-8add1ecb81f541ef2fcb0b85a5470ad9ecfb4a84.tar.bz2 linux-8add1ecb81f541ef2fcb0b85a5470ad9ecfb4a84.zip | |
MIPS: Fix poweroff failure when HOTPLUG_CPU configured.
When poweroff machine, kernel_power_off() call disable_nonboot_cpus().
And if we have HOTPLUG_CPU configured, disable_nonboot_cpus() is not an
empty function but attempt to actually disable the nonboot cpus. Since
system state is SYSTEM_POWER_OFF, play_dead() won't be called and thus
disable_nonboot_cpus() hangs. Therefore, we make this patch to avoid
poweroff failure.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Hongliang Tao <taohl@lemote.com>
Signed-off-by: Hua Yan <yanh@lemote.com>
Cc: Yong Zhang <yong.zhang@windriver.com>
Cc: stable@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/4211/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| -rw-r--r-- | arch/mips/kernel/process.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index e9a5fd7277f4..69b17a920049 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -72,9 +72,7 @@ void __noreturn cpu_idle(void) } } #ifdef CONFIG_HOTPLUG_CPU - if (!cpu_online(cpu) && !cpu_isset(cpu, cpu_callin_map) && - (system_state == SYSTEM_RUNNING || - system_state == SYSTEM_BOOTING)) + if (!cpu_online(cpu) && !cpu_isset(cpu, cpu_callin_map)) play_dead(); #endif rcu_idle_exit(); |