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

[firefly-linux-kernel-4.4.55.git] / arch / ia64 / kernel / topology.c

diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 7da4739f536e897aaa69d1a244988a25ff47e239..f07c382b57b8c7eec4139cb8ed76acb4a859965d 100644 (file)
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -26,19 +26,10 @@
 #include <asm/numa.h>
 #include <asm/cpu.h>
 
-#ifdef CONFIG_NUMA
-static struct node *sysfs_nodes;
-#endif
 static struct ia64_cpu *sysfs_cpus;
 
 int arch_register_cpu(int num)
 {
-       struct node *parent = NULL;
-       
-#ifdef CONFIG_NUMA
-       parent = &sysfs_nodes[cpu_to_node(num)];
-#endif /* CONFIG_NUMA */
-
 #if defined (CONFIG_ACPI) && defined (CONFIG_HOTPLUG_CPU)
        /*
         * If CPEI cannot be re-targetted, and this is
@@ -48,21 +39,14 @@ int arch_register_cpu(int num)
                sysfs_cpus[num].cpu.no_control = 1;
 #endif
 
-       return register_cpu(&sysfs_cpus[num].cpu, num, parent);
+       return register_cpu(&sysfs_cpus[num].cpu, num);
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
 
 void arch_unregister_cpu(int num)
 {
-       struct node *parent = NULL;
-
-#ifdef CONFIG_NUMA
-       int node = cpu_to_node(num);
-       parent = &sysfs_nodes[node];
-#endif /* CONFIG_NUMA */
-
-       return unregister_cpu(&sysfs_cpus[num].cpu, parent);
+       return unregister_cpu(&sysfs_cpus[num].cpu);
 }
 EXPORT_SYMBOL(arch_register_cpu);
 EXPORT_SYMBOL(arch_unregister_cpu);
@@ -74,17 +58,11 @@ static int __init topology_init(void)
        int i, err = 0;
 
 #ifdef CONFIG_NUMA
-       sysfs_nodes = kzalloc(sizeof(struct node) * MAX_NUMNODES, GFP_KERNEL);
-       if (!sysfs_nodes) {
-               err = -ENOMEM;
-               goto out;
-       }
-
        /*
         * MCD - Do we want to register all ONLINE nodes, or all POSSIBLE nodes?
         */
        for_each_online_node(i) {
-               if ((err = register_node(&sysfs_nodes[i], i, 0)))
+               if ((err = register_one_node(i)))
                        goto out;
        }
 #endif
@@ -166,7 +144,7 @@ static void cache_shared_cpu_map_setup( unsigned int cpu,
 
        num_shared = (int) csi.num_shared;
        do {
-               for_each_cpu(j)
+               for_each_possible_cpu(j)
                        if (cpu_data(cpu)->socket_id == cpu_data(j)->socket_id
                                && cpu_data(j)->core_id == csi.log1_cid
                                && cpu_data(j)->thread_id == csi.log1_tid)
@@ -305,13 +283,10 @@ static struct kobj_type cache_ktype_percpu_entry = {
 
 static void __cpuinit cpu_cache_sysfs_exit(unsigned int cpu)
 {
-       if (all_cpu_cache_info[cpu].cache_leaves) {
-               kfree(all_cpu_cache_info[cpu].cache_leaves);
-               all_cpu_cache_info[cpu].cache_leaves = NULL;
-       }
+       kfree(all_cpu_cache_info[cpu].cache_leaves);
+       all_cpu_cache_info[cpu].cache_leaves = NULL;
        all_cpu_cache_info[cpu].num_cache_leaves = 0;
        memset(&all_cpu_cache_info[cpu].kobj, 0, sizeof(struct kobject));
-
        return;
 }
 
@@ -429,7 +404,7 @@ static int __cpuinit cache_remove_dev(struct sys_device * sys_dev)
  * When a cpu is hot-plugged, do a check and initiate
  * cache kobject if necessary
  */
-static int cache_cpu_callback(struct notifier_block *nfb,
+static int __cpuinit cache_cpu_callback(struct notifier_block *nfb,
                unsigned long action, void *hcpu)
 {
        unsigned int cpu = (unsigned long)hcpu;