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2023-11-20 21dac118b553f9ebfb6b3a809dbe1794dfa9fb0b

 kernel/include/linux/swait.h
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@@ -160,7 +160,9 @@
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 extern void swake_up_one(struct swait_queue_head *q);
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 extern void swake_up_all(struct swait_queue_head *q);
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 extern void swake_up_locked(struct swait_queue_head *q);
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+extern void swake_up_all_locked(struct swait_queue_head *q);
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+extern void __prepare_to_swait(struct swait_queue_head *q, struct swait_queue *wait);
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 extern void prepare_to_swait_exclusive(struct swait_queue_head *q, struct swait_queue *wait, int state);
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 extern long prepare_to_swait_event(struct swait_queue_head *q, struct swait_queue *wait, int state);
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@@ -297,4 +299,18 @@
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 	__ret;								\
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 })
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+#define __swait_event_lock_irq(wq, condition, lock, cmd)		\
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+	___swait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0,		\
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+		       raw_spin_unlock_irq(&lock);			\
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+		       cmd;						\
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+		       schedule();					\
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+		       raw_spin_lock_irq(&lock))
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+
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+#define swait_event_lock_irq(wq_head, condition, lock)			\
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+	do {								\
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+		if (condition)						\
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+			break;						\
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+		__swait_event_lock_irq(wq_head, condition, lock, );	\
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+	} while (0)
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+
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 #endif /* _LINUX_SWAIT_H */