[PATCH 06/16] sched/wait: Collapse __wait_event_timeout()

[Peter Zijlstra]

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

Reviewed-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
---
 include/linux/tty.h  |   21 +----
 include/linux/wait.h |  192 +++++++++++++++------------------------------------
 2 files changed, 63 insertions(+), 150 deletions(-)

--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -220,17 +247,9 @@ do {									\
 } while (0)
 
 #define __wait_event_timeout(wq, condition, ret)			\
-do {									\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, TASK_UNINTERRUPTIBLE);	\
-		if (___wait_cond_timeout(condition, ret))		\
-			break;						\
-		ret = schedule_timeout(ret);				\
-	}								\
-	finish_wait(&wq, &__wait);					\
-} while (0)
+	___wait_event(wq, ___wait_cond_timeout(condition, ret), 	\
+		      TASK_UNINTERRUPTIBLE, 0, ret,			\
+		      ret = schedule_timeout(ret))
 
 /**
  * wait_event_timeout - sleep until a condition gets true or a timeout elapses


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