- switch (action) {
- case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
- node = cpu_to_mem(cpu);
- per_cpu(cpu_profile_flip, cpu) = 0;
- if (!per_cpu(cpu_profile_hits, cpu)[1]) {
- page = __alloc_pages_node(node,
- GFP_KERNEL | __GFP_ZERO,
- 0);
- if (!page)
- return notifier_from_errno(-ENOMEM);
- per_cpu(cpu_profile_hits, cpu)[1] = page_address(page);
- }
- if (!per_cpu(cpu_profile_hits, cpu)[0]) {
- page = __alloc_pages_node(node,
- GFP_KERNEL | __GFP_ZERO,
- 0);
- if (!page)
- goto out_free;
- per_cpu(cpu_profile_hits, cpu)[0] = page_address(page);
- }
- break;
-out_free:
- page = virt_to_page(per_cpu(cpu_profile_hits, cpu)[1]);
- per_cpu(cpu_profile_hits, cpu)[1] = NULL;
- __free_page(page);
- return notifier_from_errno(-ENOMEM);
- case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
- if (prof_cpu_mask != NULL)
- cpumask_set_cpu(cpu, prof_cpu_mask);
- break;
- case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
- case CPU_DEAD:
- case CPU_DEAD_FROZEN:
- if (prof_cpu_mask != NULL)
- cpumask_clear_cpu(cpu, prof_cpu_mask);
- if (per_cpu(cpu_profile_hits, cpu)[0]) {
- page = virt_to_page(per_cpu(cpu_profile_hits, cpu)[0]);
- per_cpu(cpu_profile_hits, cpu)[0] = NULL;
+ if (prof_cpu_mask != NULL)
+ cpumask_clear_cpu(cpu, prof_cpu_mask);
+
+ for (i = 0; i < 2; i++) {
+ if (per_cpu(cpu_profile_hits, cpu)[i]) {
+ page = virt_to_page(per_cpu(cpu_profile_hits, cpu)[i]);
+ per_cpu(cpu_profile_hits, cpu)[i] = NULL;