[PATCH] cpu hotplug: revert init patch submitted for 2.6.17

In 2.6.17, there was a problem with cpu_notifiers and XFS. I provided a band-aid solution to solve that problem. In the process, i undid all the changes you both were making to ensure that these notifiers were available only at init time (unless CONFIG_HOTPLUG_CPU is defined). We deferred the real fix to 2.6.18. Here is a set of patches that fixes the XFS problem cleanly and makes the cpu notifiers available only at init time (unless CONFIG_HOTPLUG_CPU is defined). If CONFIG_HOTPLUG_CPU is defined then cpu notifiers are available at run time. This patch reverts the notifier_call changes made in 2.6.17

Chandra Seetharaman committed 20 years ago

Commit 9c7b2161 parent 6ac12df18 files · +18 −18Browse files

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kernel/workqueue.c+1−1

@@ -559,7 +559,7 @@ static void take_over_work(struct workqueue_struct *wq, unsigned int cpu) · 558 unmodified lines
559	559	}
560	560
561	561	/* We're holding the cpucontrol mutex here */
562		−static int workqueue_cpu_callback(struct notifier_block *nfb,
	562	+static int __devinit workqueue_cpu_callback(struct notifier_block *nfb,
563	563	unsigned long action,
564	564	void *hcpu)
565	565	{