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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 22 May 2019 12:42:26 +0200
Subject: [PATCH] sched/swait: Add swait_event_lock_irq()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.2/older/patches-5.2.9-rt3.tar.xz
The swait_event_lock_irq() is inspired by wait_event_lock_irq().
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
include/linux/swait.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
--- a/include/linux/swait.h
+++ b/include/linux/swait.h
@@ -297,4 +297,18 @@ do { \
__ret; \
})
+#define __swait_event_lock_irq(wq, condition, lock, cmd) \
+ ___swait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0, \
+ raw_spin_unlock_irq(&lock); \
+ cmd; \
+ schedule(); \
+ raw_spin_lock_irq(&lock))
+
+#define swait_event_lock_irq(wq_head, condition, lock) \
+ do { \
+ if (condition) \
+ break; \
+ __swait_event_lock_irq(wq_head, condition, lock, ); \
+ } while (0)
+
#endif /* _LINUX_SWAIT_H */
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