}
#endif
+#if THREAD_SHIFT < PAGE_SHIFT
+static struct kmem_cache *thread_info_cache;
+
+struct thread_info *alloc_thread_info(struct task_struct *tsk)
+{
+ struct thread_info *ti;
+
+ ti = kmem_cache_alloc(thread_info_cache, GFP_KERNEL);
+ if (unlikely(ti == NULL))
+ return NULL;
+#ifdef CONFIG_DEBUG_STACK_USAGE
+ memset(ti, 0, THREAD_SIZE);
+#endif
+ return ti;
+}
+
+void free_thread_info(struct thread_info *ti)
+{
+ kmem_cache_free(thread_info_cache, ti);
+}
+
+void thread_info_cache_init(void)
+{
+ thread_info_cache = kmem_cache_create("thread_info", THREAD_SIZE,
+ THREAD_SIZE, 0, NULL);
+ BUG_ON(thread_info_cache == NULL);
+}
+#endif /* THREAD_SHIFT < PAGE_SHIFT */
+
#ifdef CONFIG_MEMORY_HOTPLUG
int arch_add_memory(int nid, u64 start, u64 size)
{
}
EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
#endif
-
-#ifdef CONFIG_MEMORY_HOTREMOVE
-int remove_memory(u64 start, u64 size)
-{
- unsigned long start_pfn = start >> PAGE_SHIFT;
- unsigned long end_pfn = start_pfn + (size >> PAGE_SHIFT);
- int ret;
-
- ret = offline_pages(start_pfn, end_pfn, 120 * HZ);
- if (unlikely(ret))
- printk("%s: Failed, offline_pages() == %d\n", __func__, ret);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(remove_memory);
-#endif
-
#endif /* CONFIG_MEMORY_HOTPLUG */