The patch titled
cpu-hotplug-make-register_cpu_notifier-init-time-only-fix fix
has been added to the -mm tree. Its filename is
cpu-hotplug-make-register_cpu_notifier-init-time-only-fix-fix.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: cpu-hotplug-make-register_cpu_notifier-init-time-only-fix fix
From: Chandra Seetharaman <sekharan@xxxxxxxxxx>
cpufreq_register_driver() has to made available at all time (not init
only). Hence, we should be using hotplug version of the cpu notifier
register/unregister function instead of the _init time only_ version.
Signed-off-by: Chandra Seetharaman <sekharan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/cpufreq/cpufreq.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff -puN drivers/cpufreq/cpufreq.c~cpu-hotplug-make-register_cpu_notifier-init-time-only-fix-fix drivers/cpufreq/cpufreq.c
--- a/drivers/cpufreq/cpufreq.c~cpu-hotplug-make-register_cpu_notifier-init-time-only-fix-fix
+++ a/drivers/cpufreq/cpufreq.c
@@ -1497,7 +1497,8 @@ int cpufreq_update_policy(unsigned int c
}
EXPORT_SYMBOL(cpufreq_update_policy);
-static int __cpuinit cpufreq_cpu_callback(struct notifier_block *nfb,
+#ifdef CONFIG_HOTPLUG_CPU
+static int cpufreq_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
unsigned int cpu = (unsigned long)hcpu;
@@ -1536,6 +1537,7 @@ static struct notifier_block cpufreq_cpu
{
.notifier_call = cpufreq_cpu_callback,
};
+#endif /* CONFIG_HOTPLUG_CPU */
/*********************************************************************
* REGISTER / UNREGISTER CPUFREQ DRIVER *
@@ -1596,7 +1598,7 @@ int cpufreq_register_driver(struct cpufr
}
if (!ret) {
- register_cpu_notifier(&cpufreq_cpu_notifier);
+ register_hotcpu_notifier(&cpufreq_cpu_notifier);
dprintk("driver %s up and running\n", driver_data->name);
cpufreq_debug_enable_ratelimit();
}
@@ -1628,7 +1630,7 @@ int cpufreq_unregister_driver(struct cpu
dprintk("unregistering driver %s\n", driver->name);
sysdev_driver_unregister(&cpu_sysdev_class, &cpufreq_sysdev_driver);
- unregister_cpu_notifier(&cpufreq_cpu_notifier);
+ unregister_hotcpu_notifier(&cpufreq_cpu_notifier);
spin_lock_irqsave(&cpufreq_driver_lock, flags);
cpufreq_driver = NULL;
_
Patches currently in -mm which might be from sekharan@xxxxxxxxxx are
cpu-hotplug-revert-init-patch-submitted-for-2617.patch
cpu-hotplug-revert-initdata-patch-submitted-for-2617.patch
cpu-hotplug-make-register_cpu_notifier-init-time-only.patch
cpu-hotplug-make-register_cpu_notifier-init-time-only-fix.patch
cpu-hotplug-make-register_cpu_notifier-init-time-only-fix-fix.patch
cpu-hotplug-make-cpu_notifier-related-notifier-blocks-__cpuinit-only.patch
cpu-hotplug-make-cpu_notifier-related-notifier-blocks-__cpuinit-only-fix.patch
cpu-hotplug-make-cpu_notifier-related-notifier-calls-__cpuinit-only.patch
cpu-hotplug-make-cpu_notifier-related-notifier-calls-__cpuinit-only-fix.patch
cpu-hotplug-make-cpu_notifier-related-notifier-calls-__cpuinit-only-fix-fix.patch
cpu-hotplug-add-hotplug-versions-of-cpu_notifier.patch
cpu-hotplug-use-hotplug-version-of-cpu-notifier-in-appropriate-places.patch
per-task-delay-accounting-cpu-delay-collection-via-schedstats.patch
task-watchers-task-watchers.patch
task-watchers-task-watchers-tidy.patch
task-watchers-register-per-task-delay-accounting.patch
task-watchers-add-support-for-per-task-watchers.patch
task-watchers-add-support-for-per-task-watchers-warning-fix.patch
-
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