2 files changed, 11 insertions, 0 deletions

diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index 08934995c7ab..deddeedf3257 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -128,6 +128,15 @@ static inline void set_freezable(void)
 }
 
 /*
+ * Tell the freezer that the current task should be frozen by it and that it
+ * should send a fake signal to the task to freeze it.
+ */
+static inline void set_freezable_with_signal(void)
+{
+        current->flags &= ~(PF_NOFREEZE | PF_FREEZER_NOSIG);
+}
+
+/*
  * Freezer-friendly wrappers around wait_event_interruptible() and
  * wait_event_interruptible_timeout(), originally defined in <linux/wait.h>
  */
@@ -174,6 +183,7 @@ static inline void freezer_do_not_count(void) {}
 static inline void freezer_count(void) {}
 static inline int freezer_should_skip(struct task_struct *p) { return 0; }
 static inline void set_freezable(void) {}
+static inline void set_freezable_with_signal(void) {}
 
 #define wait_event_freezable(wq, condition)                             \
                 wait_event_interruptible(wq, condition)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 21349173d148..ba2f859c6e4f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1494,6 +1494,7 @@ static inline void put_task_struct(struct task_struct *t)
 #define PF_MEMPOLICY    0x10000000      /* Non-default NUMA mempolicy */
 #define PF_MUTEX_TESTER 0x20000000      /* Thread belongs to the rt mutex tester */
 #define PF_FREEZER_SKIP 0x40000000      /* Freezer should not count it as freezeable */
+#define PF_FREEZER_NOSIG 0x80000000     /* Freezer won't send signals to it */
 
 /*
  * Only the _current_ task can read/write to tsk->flags, but other