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Subject[PATCH 11/16] sched/wait: Collapse __wait_event_interruptible_lock_irq()
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>
---
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
@@ -721,26 +674,12 @@ do { \
} while (0)


-#define __wait_event_interruptible_lock_irq(wq, condition, \
- lock, ret, cmd) \
-do { \
- DEFINE_WAIT(__wait); \
- \
- for (;;) { \
- prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE); \
- if (condition) \
- break; \
- if (signal_pending(current)) { \
- ret = -ERESTARTSYS; \
- break; \
- } \
- spin_unlock_irq(&lock); \
- cmd; \
- schedule(); \
- spin_lock_irq(&lock); \
- } \
- finish_wait(&wq, &__wait); \
-} while (0)
+#define __wait_event_interruptible_lock_irq(wq, condition, lock, ret, cmd) \
+ ___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, ret, \
+ spin_unlock_irq(&lock); \
+ cmd; \
+ schedule(); \
+ spin_lock_irq(&lock))

/**
* wait_event_interruptible_lock_irq_cmd - sleep until a condition gets true.



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