add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/net/bluetooth/bnep/core.c
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@@ -489,9 +489,6 @@
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 	add_wait_queue(sk_sleep(sk), &wait);
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 	while (1) {
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-		/* Ensure session->terminate is updated */
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-		smp_mb__before_atomic();
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-
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 		if (atomic_read(&s->terminate))
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 			break;
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 		/* RX */
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@@ -512,6 +509,10 @@
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 				break;
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 		netif_wake_queue(dev);
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+		/*
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+		 * wait_woken() performs the necessary memory barriers
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+		 * for us; see the header comment for this primitive.
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+		 */
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 		wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
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 	}
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 	remove_wait_queue(sk_sleep(sk), &wait);