Messages in this thread Patch in this message | | | From | Avi Kivity <> | Subject | [PATCH 16/20] HOTPLUG: Adapt thermal throttle to CPU_DYING | Date | Sun, 8 Jul 2007 14:54:45 +0300 |
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CPU_DYING is notified in atomic context, so no taking mutexes here.
Signed-off-by: Avi Kivity <avi@qumranet.com> --- arch/i386/kernel/cpu/mcheck/therm_throt.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/i386/kernel/cpu/mcheck/therm_throt.c b/arch/i386/kernel/cpu/mcheck/therm_throt.c index 7ba7c3a..1203dc5 100644 --- a/arch/i386/kernel/cpu/mcheck/therm_throt.c +++ b/arch/i386/kernel/cpu/mcheck/therm_throt.c @@ -134,19 +134,21 @@ static __cpuinit int thermal_throttle_cpu_callback(struct notifier_block *nfb, int err; sys_dev = get_cpu_sysdev(cpu); - mutex_lock(&therm_cpu_lock); switch (action) { case CPU_ONLINE: case CPU_ONLINE_FROZEN: + mutex_lock(&therm_cpu_lock); err = thermal_throttle_add_dev(sys_dev); + mutex_unlock(&therm_cpu_lock); WARN_ON(err); break; case CPU_DEAD: case CPU_DEAD_FROZEN: + mutex_lock(&therm_cpu_lock); thermal_throttle_remove_dev(sys_dev); + mutex_unlock(&therm_cpu_lock); break; } - mutex_unlock(&therm_cpu_lock); return NOTIFY_OK; } -- 1.5.2.2 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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