SLUB: change error reporting format to follow lockdep loosely

[linux-2.6] / kernel / exit.c

diff --git a/kernel/exit.c b/kernel/exit.c
index 8fd7acd7bbd0e593f765f452e7a5f7df9cfb0652..57626692cd90202a08ad86b032f432bf543f7a21 100644 (file)
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -122,9 +122,9 @@ static void __exit_signal(struct task_struct *tsk)
                sig->maj_flt += tsk->maj_flt;
                sig->nvcsw += tsk->nvcsw;
                sig->nivcsw += tsk->nivcsw;
-               sig->sched_time += tsk->sched_time;
                sig->inblock += task_io_get_inblock(tsk);
                sig->oublock += task_io_get_oublock(tsk);
+               sig->sum_sched_runtime += tsk->se.sum_exec_runtime;
                sig = NULL; /* Marker for below. */
        }
 
@@ -858,6 +858,34 @@ static void exit_notify(struct task_struct *tsk)
                release_task(tsk);
 }
 
+#ifdef CONFIG_DEBUG_STACK_USAGE
+static void check_stack_usage(void)
+{
+       static DEFINE_SPINLOCK(low_water_lock);
+       static int lowest_to_date = THREAD_SIZE;
+       unsigned long *n = end_of_stack(current);
+       unsigned long free;
+
+       while (*n == 0)
+               n++;
+       free = (unsigned long)n - (unsigned long)end_of_stack(current);
+
+       if (free >= lowest_to_date)
+               return;
+
+       spin_lock(&low_water_lock);
+       if (free < lowest_to_date) {
+               printk(KERN_WARNING "%s used greatest stack depth: %lu bytes "
+                               "left\n",
+                               current->comm, free);
+               lowest_to_date = free;
+       }
+       spin_unlock(&low_water_lock);
+}
+#else
+static inline void check_stack_usage(void) {}
+#endif
+
 fastcall NORET_TYPE void do_exit(long code)
 {
        struct task_struct *tsk = current;
@@ -937,6 +965,8 @@ fastcall NORET_TYPE void do_exit(long code)
        if (unlikely(tsk->compat_robust_list))
                compat_exit_robust_list(tsk);
 #endif
+       if (group_dead)
+               tty_audit_exit();
        if (unlikely(tsk->audit_context))
                audit_free(tsk);
 
@@ -949,6 +979,7 @@ fastcall NORET_TYPE void do_exit(long code)
        exit_sem(tsk);
        __exit_files(tsk);
        __exit_fs(tsk);
+       check_stack_usage();
        exit_thread();
        cpuset_exit(tsk);
        exit_keys(tsk);