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| author | Huacai Chen <chenhc@lemote.com> | 2012-08-13 20:52:24 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 08:45:54 -0800 |
| commit | 9310564820f93829c014863584652949a47ed12d (patch) | |
| tree | 8c28692e19ef82628ef75377f07afb5e92cd026a /arch | |
| parent | 9a42216b9006eb49b7275a429a30bef3ea517e3a (diff) | |
| download | linux-stable-9310564820f93829c014863584652949a47ed12d.tar.gz linux-stable-9310564820f93829c014863584652949a47ed12d.tar.bz2 linux-stable-9310564820f93829c014863584652949a47ed12d.zip | |
MIPS: Fix poweroff failure when HOTPLUG_CPU configured.
commit 8add1ecb81f541ef2fcb0b85a5470ad9ecfb4a84 upstream.
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: 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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -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(); |