mirror of https://gitee.com/openkylin/linux.git
cpu hotplug: topology: remove topology_dev_map
By previous cpu hotplug notifier change, we don't need to track topology_dev existence for each cpu by topology_dev_map. Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Gautham R Shenoy <ego@in.ibm.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -94,27 +94,18 @@ static struct attribute_group topology_attr_group = {
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.name = "topology"
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};
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static cpumask_t topology_dev_map = CPU_MASK_NONE;
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/* Add/Remove cpu_topology interface for CPU device */
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static int __cpuinit topology_add_dev(unsigned int cpu)
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{
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int rc;
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struct sys_device *sys_dev = get_cpu_sysdev(cpu);
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rc = sysfs_create_group(&sys_dev->kobj, &topology_attr_group);
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if (!rc)
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cpu_set(cpu, topology_dev_map);
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return rc;
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return sysfs_create_group(&sys_dev->kobj, &topology_attr_group);
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}
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static void __cpuinit topology_remove_dev(unsigned int cpu)
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{
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struct sys_device *sys_dev = get_cpu_sysdev(cpu);
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if (!cpu_isset(cpu, topology_dev_map))
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return;
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cpu_clear(cpu, topology_dev_map);
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sysfs_remove_group(&sys_dev->kobj, &topology_attr_group);
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}
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