Commit fed17f30 authored by David S. Miller's avatar David S. Miller
Browse files

[NET]: Stop polling when napi_disable() is pending. 



This finally adds the code in net_rx_action() to break out of the
->poll()'ing loop when a napi_disable() is found to be pending.

Now, even if a device is being flooded with packets it can be cleanly
brought down.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d1d08d12

net/core/dev.c

+6 −2
Original line number Diff line number Diff line
@@ -2207,8 +2207,12 @@ static void net_rx_action(struct softirq_action *h) 
		 * still "owns" the NAPI instance and therefore can

		 * move the instance around on the list at-will.

		 */

		if (unlikely(work == weight))

		if (unlikely(work == weight)) {

			if (unlikely(napi_disable_pending(n)))

				__napi_complete(n);

			else

				list_move_tail(&n->poll_list, list);

		}



		netpoll_poll_unlock(have);

	}

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