From d25ba98afce7c87afa39f553a3ff8effed87db03 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Fri, 2 Sep 2011 14:29:34 +1000 Subject: m68k: remove thread_info struct from thread struct Currently on m68k we have a comeplete thread_info structure stored inside of the thread_struct, and we also have it in the initial part of the kernel stack. Mostly the code currently uses the one inside of the thread_struct, only using the "task" pointer from the stack based one. This is wasteful and confusing, we should only have the single instance of thread_info inside the stack page. And this is the norm for all other architectures. This change makes m68k handle thread_info consistently on both MMU enabled and non-MMU setups. Signed-off-by: Greg Ungerer --- arch/m68k/include/asm/thread_info.h | 30 ------------------------------ 1 file changed, 30 deletions(-) (limited to 'arch/m68k/include/asm/thread_info.h') diff --git a/arch/m68k/include/asm/thread_info.h b/arch/m68k/include/asm/thread_info.h index e4e2159ca6ec..01cef3ceff46 100644 --- a/arch/m68k/include/asm/thread_info.h +++ b/arch/m68k/include/asm/thread_info.h @@ -47,34 +47,6 @@ struct thread_info { #define init_stack (init_thread_union.stack) -#ifdef CONFIG_MMU - -#ifndef __ASSEMBLY__ -#include -#endif - -#ifdef ASM_OFFSETS_C -#define task_thread_info(tsk) ((struct thread_info *) NULL) -#else -#include -#define task_thread_info(tsk) ((struct thread_info *)((char *)tsk+TASK_INFO)) -#endif - -#define init_thread_info (init_task.thread.info) -#define task_stack_page(tsk) ((tsk)->stack) -#define current_thread_info() task_thread_info(current) - -#define __HAVE_THREAD_FUNCTIONS - -#define setup_thread_stack(p, org) ({ \ - *(struct task_struct **)(p)->stack = (p); \ - task_thread_info(p)->task = (p); \ -}) - -#define end_of_stack(p) ((unsigned long *)(p)->stack + 1) - -#else /* !CONFIG_MMU */ - #ifndef __ASSEMBLY__ /* how to get the thread information struct from C */ static inline struct thread_info *current_thread_info(void) @@ -92,8 +64,6 @@ static inline struct thread_info *current_thread_info(void) #define init_thread_info (init_thread_union.thread_info) -#endif /* CONFIG_MMU */ - /* entry.S relies on these definitions! * bits 0-7 are tested at every exception exit * bits 8-15 are also tested at syscall exit -- cgit v1.2.3