sched/wait: Collapse __wait_event_killable()

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.898691966@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 5d5408b08ba5d84f93e4eaba29f4a2caa7c4cf94..ec3683ee0fc2922c74e101d1e674bccdf942480f 100644 (file)
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -582,22 +582,7 @@ do {                                                                       \
 
 
 #define __wait_event_killable(wq, condition, ret)                      \
-do {                                                                   \
-       DEFINE_WAIT(__wait);                                            \
-                                                                       \
-       for (;;) {                                                      \
-               prepare_to_wait(&wq, &__wait, TASK_KILLABLE);           \
-               if (condition)                                          \
-                       break;                                          \
-               if (!fatal_signal_pending(current)) {                   \
-                       schedule();                                     \
-                       continue;                                       \
-               }                                                       \
-               ret = -ERESTARTSYS;                                     \
-               break;                                                  \
-       }                                                               \
-       finish_wait(&wq, &__wait);                                      \
-} while (0)
+       ___wait_event(wq, condition, TASK_KILLABLE, 0, ret, schedule())
 
 /**
  * wait_event_killable - sleep until a condition gets true