add static

kernel/monitor_kernel_task.c

@@ -7,6 +7,14 @@
 #include <linux/syscalls.h>
 #include <linux/tracehook.h>
 
+typedef struct {
+  struct rcu_head rcu_head;
+  pid_t pid;
+  struct mm_struct *mm;
+  char cgroup_buf[256];
+  char argv[256];
+} mm_info;
+
 struct stack_trace {
   unsigned int nr_entries, max_entries;
   unsigned long *entries;
@@ -168,7 +176,7 @@ static inline void __save_stack_trace_user(struct stack_trace *trace) {
   }
 }
 
-void perfect_save_stack_trace_user(struct stack_trace *trace) {
+static void perfect_save_stack_trace_user(struct stack_trace *trace) {
   /*
    * Trace user stack if we are not a kernel thread
    */
@@ -179,7 +187,7 @@ void perfect_save_stack_trace_user(struct stack_trace *trace) {
     trace->entries[trace->nr_entries++] = ULONG_MAX;
 }
 
-void diagnose_save_stack_trace_user(unsigned long *backtrace) {
+static void diagnose_save_stack_trace_user(unsigned long *backtrace) {
   struct stack_trace trace;
 
   memset(&trace, 0, sizeof(trace));
@@ -189,7 +197,7 @@ void diagnose_save_stack_trace_user(unsigned long *backtrace) {
   perfect_save_stack_trace_user(&trace);
 }
 
-void diagnose_save_stack_trace_user_remote(struct task_struct *tsk,
+static void diagnose_save_stack_trace_user_remote(struct task_struct *tsk,
                                            unsigned long *backtrace) {
   struct stack_trace trace;
 

kernel/monitor_kernel_task.h

@@ -62,14 +62,6 @@ typedef struct {
   proc_chains_detail proc_chains; // process chains argv
 } variable_monitor_task;
 
-typedef struct {
-  struct rcu_head rcu_head;
-  pid_t pid;
-  struct mm_struct *mm;
-  char cgroup_buf[256];
-  char argv[256];
-} mm_info;
-
 typedef struct {
   struct radix_tree_root mm_tree;
   spinlock_t mm_tree_lock;