clean up duplicated alloc/free_thread_info
We duplicate alloc/free_thread_info defines on many platforms (the
majority uses __get_free_pages/free_pages). This patch defines common
defines and removes these duplicated defines.
__HAVE_ARCH_THREAD_INFO_ALLOCATOR is introduced for platforms that do
something different.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h
index 356b83e..e07e728 100644
--- a/include/asm-um/thread_info.h
+++ b/include/asm-um/thread_info.h
@@ -53,21 +53,7 @@
return ti;
}
-#ifdef CONFIG_DEBUG_STACK_USAGE
-
-#define alloc_thread_info(tsk) \
- ((struct thread_info *) __get_free_pages(GFP_KERNEL | __GFP_ZERO, \
- CONFIG_KERNEL_STACK_ORDER))
-#else
-
-/* thread information allocation */
-#define alloc_thread_info(tsk) \
- ((struct thread_info *) __get_free_pages(GFP_KERNEL, \
- CONFIG_KERNEL_STACK_ORDER))
-#endif
-
-#define free_thread_info(ti) \
- free_pages((unsigned long)(ti),CONFIG_KERNEL_STACK_ORDER)
+#define THREAD_SIZE_ORDER CONFIG_KERNEL_STACK_ORDER
#endif