From eef5167e5045fa8265b3e72cac9dbc4bc7dd82a6 Mon Sep 17 00:00:00 2001 From: "shin, jacob" Date: Mon, 27 Mar 2006 09:57:20 -0600 Subject: [PATCH] [CPUFREQ] hotplug cpu fix for powernow-k8 Andi's previous fix to initialise powernow_data on all siblings will not work properly with CPU Hotplug. Signed-off-by: Jacob Shin Signed-off-by: Dave Jones --- arch/i386/kernel/cpu/cpufreq/powernow-k8.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c index 1e70823e1cb..712a26bd445 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c @@ -1095,10 +1095,15 @@ static int __devexit powernowk8_cpu_exit (struct cpufreq_policy *pol) static unsigned int powernowk8_get (unsigned int cpu) { - struct powernow_k8_data *data = powernow_data[cpu]; + struct powernow_k8_data *data; cpumask_t oldmask = current->cpus_allowed; unsigned int khz = 0; + data = powernow_data[first_cpu(cpu_core_map[cpu])]; + + if (!data) + return -EINVAL; + set_cpus_allowed(current, cpumask_of_cpu(cpu)); if (smp_processor_id() != cpu) { printk(KERN_ERR PFX "limiting to CPU %d failed in powernowk8_get\n", cpu); -- 2.20.1