fake_signal_wake_up() should not wake up the TASK_KILLABLE tasks,
we are going to fix this. This means that wait_event_freezekillable()
can't rely on wakeup from freezer. Reimplement it using
freezer_do_not_count/freezer_count. This is not really nice, just
a simple fix for now.

Signed-off-by: Oleg Nesterov <[email protected]>
---

 include/linux/freezer.h |   10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -143,13 +143,9 @@ static inline void set_freezable_with_si
 #define wait_event_freezekillable(wq, condition)                       \
 ({                                                                     \
        int __retval;                                                   \
-       for (;;) {                                                      \
-               __retval = wait_event_killable(wq,                      \
-                               (condition) || freezing(current));      \
-               if (__retval || (condition))                            \
-                       break;                                          \
-               try_to_freeze();                                        \
-       }                                                               \
+       freezer_do_not_count();                                         \
+       __retval = wait_event_killable(wq, (condition));                \
+       freezer_count();                                                \
        __retval;                                                       \
 })
 

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