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clean up duplicated alloc/free_thread_info

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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 <[email protected]>
Acked-by: Russell King <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
FUJITA Tomonori 2008-07-25 01:45:40 -07:00 • committed by Linus Torvalds
commit b69c49b784
23 changed files with 50 additions and 80 deletions
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16
include/asm-um/thread_info.h
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@ -53,21 +53,7 @@ static inline struct thread_info *current_thread_info(void)
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