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sh: Always provide thread_info allocators.

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Presently the thread_info allocators are special cased, depending on
THREAD_SHIFT < PAGE_SHIFT. This provides a sensible definition for them
regardless of configuration, in preparation for extended CPU state.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2010-01-12 19:01:11 +09:00
parent 70e068eef9
commit cbf6b1ba7a
4 changed files with 51 additions and 35 deletions
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29
arch/sh/mm/init.c
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@@ -283,35 +283,6 @@ void free_initrd_mem(unsigned long start, unsigned long end)
}
#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)
{