simplify the stacktrace code
[linux-3.10.git] / arch / s390 / kernel / stacktrace.c
index 2e5c65a..515ff90 100644 (file)
@@ -59,7 +59,7 @@ static unsigned long save_context_stack(struct stack_trace *trace,
        }
 }
 
-void save_stack_trace(struct stack_trace *trace, struct task_struct *task)
+void save_stack_trace(struct stack_trace *trace)
 {
        register unsigned long sp asm ("15");
        unsigned long orig_sp, new_sp;
@@ -69,20 +69,16 @@ void save_stack_trace(struct stack_trace *trace, struct task_struct *task)
        new_sp = save_context_stack(trace, &trace->skip, orig_sp,
                                S390_lowcore.panic_stack - PAGE_SIZE,
                                S390_lowcore.panic_stack);
-       if ((new_sp != orig_sp) && !trace->all_contexts)
+       if (new_sp != orig_sp)
                return;
        new_sp = save_context_stack(trace, &trace->skip, new_sp,
                                S390_lowcore.async_stack - ASYNC_SIZE,
                                S390_lowcore.async_stack);
-       if ((new_sp != orig_sp) && !trace->all_contexts)
+       if (new_sp != orig_sp)
                return;
-       if (task)
-               save_context_stack(trace, &trace->skip, new_sp,
-                                  (unsigned long) task_stack_page(task),
-                                  (unsigned long) task_stack_page(task) + THREAD_SIZE);
-       else
-               save_context_stack(trace, &trace->skip, new_sp,
-                                  S390_lowcore.thread_info,
-                                  S390_lowcore.thread_info + THREAD_SIZE);
+
+       save_context_stack(trace, &trace->skip, new_sp,
+                          S390_lowcore.thread_info,
+                          S390_lowcore.thread_info + THREAD_SIZE);
        return;
 }