[PATCH] sparc64: task_stack_page()

Signed-off-by: Al Viro <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

arch/sparc64/kernel/process.c

···
 		unsigned long unused,
 		struct task_struct *p, struct pt_regs *regs)
 {
-	struct thread_info *t = p->thread_info;
+	struct thread_info *t = task_thread_info(p);
 	char *child_trap_frame;
 
 	/* Calculate offset to stack_frame & pt_regs */
-	child_trap_frame = ((char *)t) + (THREAD_SIZE - (TRACEREG_SZ+STACKFRAME_SZ));
+	child_trap_frame = task_stack_page(p) + (THREAD_SIZE - (TRACEREG_SZ+STACKFRAME_SZ));
 	memcpy(child_trap_frame, (((struct sparc_stackf *)regs)-1), (TRACEREG_SZ+STACKFRAME_SZ));
 
 	t->flags = (t->flags & ~((0xffUL << TI_FLAG_CWP_SHIFT) | (0xffUL << TI_FLAG_CURRENT_DS_SHIFT))) |
···
             task->state == TASK_RUNNING)
 		goto out;
 
-	thread_info_base = (unsigned long) task->thread_info;
+	thread_info_base = (unsigned long) task_stack_page(task);
 	bias = STACK_BIAS;
 	fp = task_thread_info(task)->ksp + bias;
 

arch/sparc64/kernel/traps.c

···
 void show_stack(struct task_struct *tsk, unsigned long *_ksp)
 {
 	unsigned long pc, fp, thread_base, ksp;
-	struct thread_info *tp = tsk->thread_info;
+	void *tp = task_stack_page(tsk);
 	struct reg_window *rw;
 	int count = 0;
 
···
 			return 0;
 	}
 
-	thread_base = (unsigned long) task->thread_info;
+	thread_base = (unsigned long) task_stack_page(task);
 	thread_end = thread_base + sizeof(union thread_union);
 	if (rw_addr >= thread_base &&
 	    rw_addr < thread_end &&