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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2007-10-18 03:05:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-18 14:37:21 -0700 |
| commit | c7e38a9c27ced4020d64749400cece4fbad4679e (patch) | |
| tree | c7ee053bdb4274b2045d174102472dec1d3038d8 /arch | |
| parent | 9780e3e968537db0ac8d5b4857bb38bc40217c01 (diff) | |
| download | op-kernel-dev-c7e38a9c27ced4020d64749400cece4fbad4679e.zip op-kernel-dev-c7e38a9c27ced4020d64749400cece4fbad4679e.tar.gz | |
cpu hotplug: thermal_throttle: fix cpu hotplug error handling
Do thermal_throttle_add_dev() in CPU_UP_PREPARE instead of CPU_ONLINE.
Cc: Dmitriy Zavin <dmitriyz@google.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Andi Kleen <ak@suse.de>
Cc: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/mcheck/therm_throt.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c index 494d320..24885be 100644 --- a/arch/x86/kernel/cpu/mcheck/therm_throt.c +++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c @@ -131,17 +131,19 @@ static __cpuinit int thermal_throttle_cpu_callback(struct notifier_block *nfb, { unsigned int cpu = (unsigned long)hcpu; struct sys_device *sys_dev; - int err; + int err = 0; sys_dev = get_cpu_sysdev(cpu); switch (action) { - case CPU_ONLINE: - case CPU_ONLINE_FROZEN: + case CPU_UP_PREPARE: + case CPU_UP_PREPARE_FROZEN: mutex_lock(&therm_cpu_lock); err = thermal_throttle_add_dev(sys_dev); mutex_unlock(&therm_cpu_lock); WARN_ON(err); break; + case CPU_UP_CANCELED: + case CPU_UP_CANCELED_FROZEN: case CPU_DEAD: case CPU_DEAD_FROZEN: mutex_lock(&therm_cpu_lock); @@ -149,7 +151,7 @@ static __cpuinit int thermal_throttle_cpu_callback(struct notifier_block *nfb, mutex_unlock(&therm_cpu_lock); break; } - return NOTIFY_OK; + return err ? NOTIFY_BAD : NOTIFY_OK; } static struct notifier_block thermal_throttle_cpu_notifier __cpuinitdata = |
