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-rw-r--r--fs/proc/array.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 0c6bc602e6c4..822c2d506518 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -322,6 +322,8 @@ static inline void task_context_switch_counts(struct seq_file *m,
p->nivcsw);
}
+#ifdef CONFIG_MMU
+
struct stack_stats {
struct vm_area_struct *vma;
unsigned long startpage;
@@ -402,6 +404,11 @@ static inline void task_show_stack_usage(struct seq_file *m,
mmput(mm);
}
}
+#else
+static void task_show_stack_usage(struct seq_file *m, struct task_struct *task)
+{
+}
+#endif /* CONFIG_MMU */
int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
struct pid *pid, struct task_struct *task)
@@ -564,7 +571,7 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
rsslim,
mm ? mm->start_code : 0,
mm ? mm->end_code : 0,
- (permitted) ? task->stack_start : 0,
+ (permitted && mm) ? task->stack_start : 0,
esp,
eip,
/* The signal information here is obsolete.