diff options
Diffstat (limited to 'arch/arm/include/asm/thread_info.h')
| -rw-r--r-- | arch/arm/include/asm/thread_info.h | 35 |
1 files changed, 8 insertions, 27 deletions
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index 164e15f26485..aecc403b2880 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -25,6 +25,14 @@ #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) #define THREAD_START_SP (THREAD_SIZE - 8) +#ifdef CONFIG_VMAP_STACK +#define THREAD_ALIGN (2 * THREAD_SIZE) +#else +#define THREAD_ALIGN THREAD_SIZE +#endif + +#define OVERFLOW_STACK_SIZE SZ_4K + #ifndef __ASSEMBLY__ struct task_struct; @@ -54,9 +62,6 @@ struct cpu_context_save { struct thread_info { unsigned long flags; /* low level flags */ int preempt_count; /* 0 => preemptable, <0 => bug */ -#ifndef CONFIG_THREAD_INFO_IN_TASK - struct task_struct *task; /* main task structure */ -#endif __u32 cpu; /* cpu */ __u32 cpu_domain; /* cpu domain */ struct cpu_context_save cpu_context; /* cpu context */ @@ -72,39 +77,15 @@ struct thread_info { #define INIT_THREAD_INFO(tsk) \ { \ - INIT_THREAD_INFO_TASK(tsk) \ .flags = 0, \ .preempt_count = INIT_PREEMPT_COUNT, \ } -#ifdef CONFIG_THREAD_INFO_IN_TASK -#define INIT_THREAD_INFO_TASK(tsk) - static inline struct task_struct *thread_task(struct thread_info* ti) { return (struct task_struct *)ti; } -#else -#define INIT_THREAD_INFO_TASK(tsk) .task = &(tsk), - -static inline struct task_struct *thread_task(struct thread_info* ti) -{ - return ti->task; -} - -/* - * how to get the thread information struct from C - */ -static inline struct thread_info *current_thread_info(void) __attribute_const__; - -static inline struct thread_info *current_thread_info(void) -{ - return (struct thread_info *) - (current_stack_pointer & ~(THREAD_SIZE - 1)); -} -#endif - #define thread_saved_pc(tsk) \ ((unsigned long)(task_thread_info(tsk)->cpu_context.pc)) #define thread_saved_sp(tsk) \ |