[PATCH] sh64: task_stack_page()

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

arch/sh64/kernel/process.c

@@ -744,7 +744,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	}
 #endif
 	/* Copy from sh version */
-	childregs = ((struct pt_regs *)(THREAD_SIZE + (unsigned long) p->thread_info )) - 1;
+	childregs = (struct pt_regs *)(THREAD_SIZE + task_stack_page(p)) - 1;
 
 	*childregs = *regs;
 
@@ -752,7 +752,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 		childregs->regs[15] = usp;
 		p->thread.uregs = childregs;
 	} else {
-		childregs->regs[15] = (unsigned long)p->thread_info + THREAD_SIZE;
+		childregs->regs[15] = (unsigned long)task_stack_page(p) + THREAD_SIZE;
 	}
 
 	childregs->regs[9] = 0; /* Set return value for child */

arch/sh64/lib/dbg.c

@@ -174,7 +174,7 @@ void evt_debug(int evt, int ret_addr, int event, int tra, struct pt_regs *regs)
 	struct ring_node *rr;
 
 	pid = current->pid;
-	stack_bottom = (unsigned long) current->thread_info;
+	stack_bottom = (unsigned long) task_stack_page(current);
 	asm volatile("ori r15, 0, %0" : "=r" (sp));
 	rr = event_ring + event_ptr;
 	rr->evt = evt;